Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2008-2010 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 21 | * IN THE SOFTWARE. |
| 22 | * |
| 23 | * Authors: |
| 24 | * Eric Anholt <eric@anholt.net> |
| 25 | * Zou Nan hai <nanhai.zou@intel.com> |
| 26 | * Xiang Hai hao<haihao.xiang@intel.com> |
| 27 | * |
| 28 | */ |
| 29 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 30 | #include <drm/drmP.h> |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 31 | #include "i915_drv.h" |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 32 | #include <drm/i915_drm.h> |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 33 | #include "i915_trace.h" |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 34 | #include "intel_drv.h" |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 35 | |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 36 | /* Early gen2 devices have a cacheline of just 32 bytes, using 64 is overkill, |
| 37 | * but keeps the logic simple. Indeed, the whole purpose of this macro is just |
| 38 | * to give some inclination as to some of the magic values used in the various |
| 39 | * workarounds! |
| 40 | */ |
| 41 | #define CACHELINE_BYTES 64 |
| 42 | |
Chris Wilson | 1cf0ba1 | 2014-05-05 09:07:33 +0100 | [diff] [blame] | 43 | static inline int __ring_space(int head, int tail, int size) |
| 44 | { |
| 45 | int space = head - (tail + I915_RING_FREE_SPACE); |
| 46 | if (space < 0) |
| 47 | space += size; |
| 48 | return space; |
| 49 | } |
| 50 | |
Oscar Mateo | 64c58f2 | 2014-07-03 16:28:03 +0100 | [diff] [blame] | 51 | static inline int ring_space(struct intel_ringbuffer *ringbuf) |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 52 | { |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 53 | return __ring_space(ringbuf->head & HEAD_ADDR, ringbuf->tail, ringbuf->size); |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 54 | } |
| 55 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 56 | static bool intel_ring_stopped(struct intel_engine_cs *ring) |
Chris Wilson | 0924673 | 2013-08-10 22:16:32 +0100 | [diff] [blame] | 57 | { |
| 58 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
Mika Kuoppala | 88b4aa8 | 2014-03-28 18:18:18 +0200 | [diff] [blame] | 59 | return dev_priv->gpu_error.stop_rings & intel_ring_flag(ring); |
| 60 | } |
Chris Wilson | 0924673 | 2013-08-10 22:16:32 +0100 | [diff] [blame] | 61 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 62 | void __intel_ring_advance(struct intel_engine_cs *ring) |
Mika Kuoppala | 88b4aa8 | 2014-03-28 18:18:18 +0200 | [diff] [blame] | 63 | { |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 64 | struct intel_ringbuffer *ringbuf = ring->buffer; |
| 65 | ringbuf->tail &= ringbuf->size - 1; |
Mika Kuoppala | 88b4aa8 | 2014-03-28 18:18:18 +0200 | [diff] [blame] | 66 | if (intel_ring_stopped(ring)) |
Chris Wilson | 0924673 | 2013-08-10 22:16:32 +0100 | [diff] [blame] | 67 | return; |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 68 | ring->write_tail(ring, ringbuf->tail); |
Chris Wilson | 0924673 | 2013-08-10 22:16:32 +0100 | [diff] [blame] | 69 | } |
| 70 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 71 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 72 | gen2_render_ring_flush(struct intel_engine_cs *ring, |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 73 | u32 invalidate_domains, |
| 74 | u32 flush_domains) |
| 75 | { |
| 76 | u32 cmd; |
| 77 | int ret; |
| 78 | |
| 79 | cmd = MI_FLUSH; |
Daniel Vetter | 31b14c9 | 2012-04-19 16:45:22 +0200 | [diff] [blame] | 80 | if (((invalidate_domains|flush_domains) & I915_GEM_DOMAIN_RENDER) == 0) |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 81 | cmd |= MI_NO_WRITE_FLUSH; |
| 82 | |
| 83 | if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER) |
| 84 | cmd |= MI_READ_FLUSH; |
| 85 | |
| 86 | ret = intel_ring_begin(ring, 2); |
| 87 | if (ret) |
| 88 | return ret; |
| 89 | |
| 90 | intel_ring_emit(ring, cmd); |
| 91 | intel_ring_emit(ring, MI_NOOP); |
| 92 | intel_ring_advance(ring); |
| 93 | |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 98 | gen4_render_ring_flush(struct intel_engine_cs *ring, |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 99 | u32 invalidate_domains, |
| 100 | u32 flush_domains) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 101 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 102 | struct drm_device *dev = ring->dev; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 103 | u32 cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 104 | int ret; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 105 | |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 106 | /* |
| 107 | * read/write caches: |
| 108 | * |
| 109 | * I915_GEM_DOMAIN_RENDER is always invalidated, but is |
| 110 | * only flushed if MI_NO_WRITE_FLUSH is unset. On 965, it is |
| 111 | * also flushed at 2d versus 3d pipeline switches. |
| 112 | * |
| 113 | * read-only caches: |
| 114 | * |
| 115 | * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if |
| 116 | * MI_READ_FLUSH is set, and is always flushed on 965. |
| 117 | * |
| 118 | * I915_GEM_DOMAIN_COMMAND may not exist? |
| 119 | * |
| 120 | * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is |
| 121 | * invalidated when MI_EXE_FLUSH is set. |
| 122 | * |
| 123 | * I915_GEM_DOMAIN_VERTEX, which exists on 965, is |
| 124 | * invalidated with every MI_FLUSH. |
| 125 | * |
| 126 | * TLBs: |
| 127 | * |
| 128 | * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND |
| 129 | * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and |
| 130 | * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER |
| 131 | * are flushed at any MI_FLUSH. |
| 132 | */ |
| 133 | |
| 134 | cmd = MI_FLUSH | MI_NO_WRITE_FLUSH; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 135 | if ((invalidate_domains|flush_domains) & I915_GEM_DOMAIN_RENDER) |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 136 | cmd &= ~MI_NO_WRITE_FLUSH; |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 137 | if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION) |
| 138 | cmd |= MI_EXE_FLUSH; |
| 139 | |
| 140 | if (invalidate_domains & I915_GEM_DOMAIN_COMMAND && |
| 141 | (IS_G4X(dev) || IS_GEN5(dev))) |
| 142 | cmd |= MI_INVALIDATE_ISP; |
| 143 | |
| 144 | ret = intel_ring_begin(ring, 2); |
| 145 | if (ret) |
| 146 | return ret; |
| 147 | |
| 148 | intel_ring_emit(ring, cmd); |
| 149 | intel_ring_emit(ring, MI_NOOP); |
| 150 | intel_ring_advance(ring); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 151 | |
| 152 | return 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 153 | } |
| 154 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 155 | /** |
| 156 | * Emits a PIPE_CONTROL with a non-zero post-sync operation, for |
| 157 | * implementing two workarounds on gen6. From section 1.4.7.1 |
| 158 | * "PIPE_CONTROL" of the Sandy Bridge PRM volume 2 part 1: |
| 159 | * |
| 160 | * [DevSNB-C+{W/A}] Before any depth stall flush (including those |
| 161 | * produced by non-pipelined state commands), software needs to first |
| 162 | * send a PIPE_CONTROL with no bits set except Post-Sync Operation != |
| 163 | * 0. |
| 164 | * |
| 165 | * [Dev-SNB{W/A}]: Before a PIPE_CONTROL with Write Cache Flush Enable |
| 166 | * =1, a PIPE_CONTROL with any non-zero post-sync-op is required. |
| 167 | * |
| 168 | * And the workaround for these two requires this workaround first: |
| 169 | * |
| 170 | * [Dev-SNB{W/A}]: Pipe-control with CS-stall bit set must be sent |
| 171 | * BEFORE the pipe-control with a post-sync op and no write-cache |
| 172 | * flushes. |
| 173 | * |
| 174 | * And this last workaround is tricky because of the requirements on |
| 175 | * that bit. From section 1.4.7.2.3 "Stall" of the Sandy Bridge PRM |
| 176 | * volume 2 part 1: |
| 177 | * |
| 178 | * "1 of the following must also be set: |
| 179 | * - Render Target Cache Flush Enable ([12] of DW1) |
| 180 | * - Depth Cache Flush Enable ([0] of DW1) |
| 181 | * - Stall at Pixel Scoreboard ([1] of DW1) |
| 182 | * - Depth Stall ([13] of DW1) |
| 183 | * - Post-Sync Operation ([13] of DW1) |
| 184 | * - Notify Enable ([8] of DW1)" |
| 185 | * |
| 186 | * The cache flushes require the workaround flush that triggered this |
| 187 | * one, so we can't use it. Depth stall would trigger the same. |
| 188 | * Post-sync nonzero is what triggered this second workaround, so we |
| 189 | * can't use that one either. Notify enable is IRQs, which aren't |
| 190 | * really our business. That leaves only stall at scoreboard. |
| 191 | */ |
| 192 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 193 | intel_emit_post_sync_nonzero_flush(struct intel_engine_cs *ring) |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 194 | { |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 195 | u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 196 | int ret; |
| 197 | |
| 198 | |
| 199 | ret = intel_ring_begin(ring, 6); |
| 200 | if (ret) |
| 201 | return ret; |
| 202 | |
| 203 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); |
| 204 | intel_ring_emit(ring, PIPE_CONTROL_CS_STALL | |
| 205 | PIPE_CONTROL_STALL_AT_SCOREBOARD); |
| 206 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */ |
| 207 | intel_ring_emit(ring, 0); /* low dword */ |
| 208 | intel_ring_emit(ring, 0); /* high dword */ |
| 209 | intel_ring_emit(ring, MI_NOOP); |
| 210 | intel_ring_advance(ring); |
| 211 | |
| 212 | ret = intel_ring_begin(ring, 6); |
| 213 | if (ret) |
| 214 | return ret; |
| 215 | |
| 216 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); |
| 217 | intel_ring_emit(ring, PIPE_CONTROL_QW_WRITE); |
| 218 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */ |
| 219 | intel_ring_emit(ring, 0); |
| 220 | intel_ring_emit(ring, 0); |
| 221 | intel_ring_emit(ring, MI_NOOP); |
| 222 | intel_ring_advance(ring); |
| 223 | |
| 224 | return 0; |
| 225 | } |
| 226 | |
| 227 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 228 | gen6_render_ring_flush(struct intel_engine_cs *ring, |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 229 | u32 invalidate_domains, u32 flush_domains) |
| 230 | { |
| 231 | u32 flags = 0; |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 232 | u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 233 | int ret; |
| 234 | |
Paulo Zanoni | b311150 | 2012-08-17 18:35:42 -0300 | [diff] [blame] | 235 | /* Force SNB workarounds for PIPE_CONTROL flushes */ |
| 236 | ret = intel_emit_post_sync_nonzero_flush(ring); |
| 237 | if (ret) |
| 238 | return ret; |
| 239 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 240 | /* Just flush everything. Experiments have shown that reducing the |
| 241 | * number of bits based on the write domains has little performance |
| 242 | * impact. |
| 243 | */ |
Chris Wilson | 7d54a90 | 2012-08-10 10:18:10 +0100 | [diff] [blame] | 244 | if (flush_domains) { |
| 245 | flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; |
| 246 | flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; |
| 247 | /* |
| 248 | * Ensure that any following seqno writes only happen |
| 249 | * when the render cache is indeed flushed. |
| 250 | */ |
Daniel Vetter | 97f209b | 2012-06-28 09:48:42 +0200 | [diff] [blame] | 251 | flags |= PIPE_CONTROL_CS_STALL; |
Chris Wilson | 7d54a90 | 2012-08-10 10:18:10 +0100 | [diff] [blame] | 252 | } |
| 253 | if (invalidate_domains) { |
| 254 | flags |= PIPE_CONTROL_TLB_INVALIDATE; |
| 255 | flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; |
| 256 | flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; |
| 257 | flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; |
| 258 | flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; |
| 259 | flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; |
| 260 | /* |
| 261 | * TLB invalidate requires a post-sync write. |
| 262 | */ |
Jesse Barnes | 3ac7831 | 2012-10-25 12:15:47 -0700 | [diff] [blame] | 263 | flags |= PIPE_CONTROL_QW_WRITE | PIPE_CONTROL_CS_STALL; |
Chris Wilson | 7d54a90 | 2012-08-10 10:18:10 +0100 | [diff] [blame] | 264 | } |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 265 | |
Chris Wilson | 6c6cf5a | 2012-07-20 18:02:28 +0100 | [diff] [blame] | 266 | ret = intel_ring_begin(ring, 4); |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 267 | if (ret) |
| 268 | return ret; |
| 269 | |
Chris Wilson | 6c6cf5a | 2012-07-20 18:02:28 +0100 | [diff] [blame] | 270 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4)); |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 271 | intel_ring_emit(ring, flags); |
| 272 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); |
Chris Wilson | 6c6cf5a | 2012-07-20 18:02:28 +0100 | [diff] [blame] | 273 | intel_ring_emit(ring, 0); |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 274 | intel_ring_advance(ring); |
| 275 | |
| 276 | return 0; |
| 277 | } |
| 278 | |
Chris Wilson | 6c6cf5a | 2012-07-20 18:02:28 +0100 | [diff] [blame] | 279 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 280 | gen7_render_ring_cs_stall_wa(struct intel_engine_cs *ring) |
Paulo Zanoni | f398763 | 2012-08-17 18:35:43 -0300 | [diff] [blame] | 281 | { |
| 282 | int ret; |
| 283 | |
| 284 | ret = intel_ring_begin(ring, 4); |
| 285 | if (ret) |
| 286 | return ret; |
| 287 | |
| 288 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4)); |
| 289 | intel_ring_emit(ring, PIPE_CONTROL_CS_STALL | |
| 290 | PIPE_CONTROL_STALL_AT_SCOREBOARD); |
| 291 | intel_ring_emit(ring, 0); |
| 292 | intel_ring_emit(ring, 0); |
| 293 | intel_ring_advance(ring); |
| 294 | |
| 295 | return 0; |
| 296 | } |
| 297 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 298 | static int gen7_ring_fbc_flush(struct intel_engine_cs *ring, u32 value) |
Rodrigo Vivi | fd3da6c | 2013-06-06 16:58:16 -0300 | [diff] [blame] | 299 | { |
| 300 | int ret; |
| 301 | |
| 302 | if (!ring->fbc_dirty) |
| 303 | return 0; |
| 304 | |
Ville Syrjälä | 37c1d94 | 2013-11-06 23:02:20 +0200 | [diff] [blame] | 305 | ret = intel_ring_begin(ring, 6); |
Rodrigo Vivi | fd3da6c | 2013-06-06 16:58:16 -0300 | [diff] [blame] | 306 | if (ret) |
| 307 | return ret; |
Rodrigo Vivi | fd3da6c | 2013-06-06 16:58:16 -0300 | [diff] [blame] | 308 | /* WaFbcNukeOn3DBlt:ivb/hsw */ |
| 309 | intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1)); |
| 310 | intel_ring_emit(ring, MSG_FBC_REND_STATE); |
| 311 | intel_ring_emit(ring, value); |
Ville Syrjälä | 37c1d94 | 2013-11-06 23:02:20 +0200 | [diff] [blame] | 312 | intel_ring_emit(ring, MI_STORE_REGISTER_MEM(1) | MI_SRM_LRM_GLOBAL_GTT); |
| 313 | intel_ring_emit(ring, MSG_FBC_REND_STATE); |
| 314 | intel_ring_emit(ring, ring->scratch.gtt_offset + 256); |
Rodrigo Vivi | fd3da6c | 2013-06-06 16:58:16 -0300 | [diff] [blame] | 315 | intel_ring_advance(ring); |
| 316 | |
| 317 | ring->fbc_dirty = false; |
| 318 | return 0; |
| 319 | } |
| 320 | |
Paulo Zanoni | f398763 | 2012-08-17 18:35:43 -0300 | [diff] [blame] | 321 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 322 | gen7_render_ring_flush(struct intel_engine_cs *ring, |
Paulo Zanoni | 4772eae | 2012-08-17 18:35:41 -0300 | [diff] [blame] | 323 | u32 invalidate_domains, u32 flush_domains) |
| 324 | { |
| 325 | u32 flags = 0; |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 326 | u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; |
Paulo Zanoni | 4772eae | 2012-08-17 18:35:41 -0300 | [diff] [blame] | 327 | int ret; |
| 328 | |
Paulo Zanoni | f398763 | 2012-08-17 18:35:43 -0300 | [diff] [blame] | 329 | /* |
| 330 | * Ensure that any following seqno writes only happen when the render |
| 331 | * cache is indeed flushed. |
| 332 | * |
| 333 | * Workaround: 4th PIPE_CONTROL command (except the ones with only |
| 334 | * read-cache invalidate bits set) must have the CS_STALL bit set. We |
| 335 | * don't try to be clever and just set it unconditionally. |
| 336 | */ |
| 337 | flags |= PIPE_CONTROL_CS_STALL; |
| 338 | |
Paulo Zanoni | 4772eae | 2012-08-17 18:35:41 -0300 | [diff] [blame] | 339 | /* Just flush everything. Experiments have shown that reducing the |
| 340 | * number of bits based on the write domains has little performance |
| 341 | * impact. |
| 342 | */ |
| 343 | if (flush_domains) { |
| 344 | flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; |
| 345 | flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; |
Paulo Zanoni | 4772eae | 2012-08-17 18:35:41 -0300 | [diff] [blame] | 346 | } |
| 347 | if (invalidate_domains) { |
| 348 | flags |= PIPE_CONTROL_TLB_INVALIDATE; |
| 349 | flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; |
| 350 | flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; |
| 351 | flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; |
| 352 | flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; |
| 353 | flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; |
| 354 | /* |
| 355 | * TLB invalidate requires a post-sync write. |
| 356 | */ |
| 357 | flags |= PIPE_CONTROL_QW_WRITE; |
Ville Syrjälä | b9e1faa | 2013-02-14 21:53:51 +0200 | [diff] [blame] | 358 | flags |= PIPE_CONTROL_GLOBAL_GTT_IVB; |
Paulo Zanoni | f398763 | 2012-08-17 18:35:43 -0300 | [diff] [blame] | 359 | |
| 360 | /* Workaround: we must issue a pipe_control with CS-stall bit |
| 361 | * set before a pipe_control command that has the state cache |
| 362 | * invalidate bit set. */ |
| 363 | gen7_render_ring_cs_stall_wa(ring); |
Paulo Zanoni | 4772eae | 2012-08-17 18:35:41 -0300 | [diff] [blame] | 364 | } |
| 365 | |
| 366 | ret = intel_ring_begin(ring, 4); |
| 367 | if (ret) |
| 368 | return ret; |
| 369 | |
| 370 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4)); |
| 371 | intel_ring_emit(ring, flags); |
Ville Syrjälä | b9e1faa | 2013-02-14 21:53:51 +0200 | [diff] [blame] | 372 | intel_ring_emit(ring, scratch_addr); |
Paulo Zanoni | 4772eae | 2012-08-17 18:35:41 -0300 | [diff] [blame] | 373 | intel_ring_emit(ring, 0); |
| 374 | intel_ring_advance(ring); |
| 375 | |
Ville Syrjälä | 9688eca | 2013-11-06 23:02:19 +0200 | [diff] [blame] | 376 | if (!invalidate_domains && flush_domains) |
Rodrigo Vivi | fd3da6c | 2013-06-06 16:58:16 -0300 | [diff] [blame] | 377 | return gen7_ring_fbc_flush(ring, FBC_REND_NUKE); |
| 378 | |
Paulo Zanoni | 4772eae | 2012-08-17 18:35:41 -0300 | [diff] [blame] | 379 | return 0; |
| 380 | } |
| 381 | |
Ben Widawsky | a5f3d68 | 2013-11-02 21:07:27 -0700 | [diff] [blame] | 382 | static int |
Kenneth Graunke | 884ceac | 2014-06-28 02:04:20 +0300 | [diff] [blame] | 383 | gen8_emit_pipe_control(struct intel_engine_cs *ring, |
| 384 | u32 flags, u32 scratch_addr) |
| 385 | { |
| 386 | int ret; |
| 387 | |
| 388 | ret = intel_ring_begin(ring, 6); |
| 389 | if (ret) |
| 390 | return ret; |
| 391 | |
| 392 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(6)); |
| 393 | intel_ring_emit(ring, flags); |
| 394 | intel_ring_emit(ring, scratch_addr); |
| 395 | intel_ring_emit(ring, 0); |
| 396 | intel_ring_emit(ring, 0); |
| 397 | intel_ring_emit(ring, 0); |
| 398 | intel_ring_advance(ring); |
| 399 | |
| 400 | return 0; |
| 401 | } |
| 402 | |
| 403 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 404 | gen8_render_ring_flush(struct intel_engine_cs *ring, |
Ben Widawsky | a5f3d68 | 2013-11-02 21:07:27 -0700 | [diff] [blame] | 405 | u32 invalidate_domains, u32 flush_domains) |
| 406 | { |
| 407 | u32 flags = 0; |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 408 | u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; |
Kenneth Graunke | 02c9f7e | 2014-01-27 14:20:16 -0800 | [diff] [blame^] | 409 | int ret; |
Ben Widawsky | a5f3d68 | 2013-11-02 21:07:27 -0700 | [diff] [blame] | 410 | |
| 411 | flags |= PIPE_CONTROL_CS_STALL; |
| 412 | |
| 413 | if (flush_domains) { |
| 414 | flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; |
| 415 | flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; |
| 416 | } |
| 417 | if (invalidate_domains) { |
| 418 | flags |= PIPE_CONTROL_TLB_INVALIDATE; |
| 419 | flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; |
| 420 | flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; |
| 421 | flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; |
| 422 | flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; |
| 423 | flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; |
| 424 | flags |= PIPE_CONTROL_QW_WRITE; |
| 425 | flags |= PIPE_CONTROL_GLOBAL_GTT_IVB; |
Kenneth Graunke | 02c9f7e | 2014-01-27 14:20:16 -0800 | [diff] [blame^] | 426 | |
| 427 | /* WaCsStallBeforeStateCacheInvalidate:bdw,chv */ |
| 428 | ret = gen8_emit_pipe_control(ring, |
| 429 | PIPE_CONTROL_CS_STALL | |
| 430 | PIPE_CONTROL_STALL_AT_SCOREBOARD, |
| 431 | 0); |
| 432 | if (ret) |
| 433 | return ret; |
Ben Widawsky | a5f3d68 | 2013-11-02 21:07:27 -0700 | [diff] [blame] | 434 | } |
| 435 | |
Kenneth Graunke | 884ceac | 2014-06-28 02:04:20 +0300 | [diff] [blame] | 436 | return gen8_emit_pipe_control(ring, flags, scratch_addr); |
Ben Widawsky | a5f3d68 | 2013-11-02 21:07:27 -0700 | [diff] [blame] | 437 | } |
| 438 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 439 | static void ring_write_tail(struct intel_engine_cs *ring, |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 440 | u32 value) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 441 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 442 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 443 | I915_WRITE_TAIL(ring, value); |
Xiang, Haihao | d46eefa | 2010-09-16 10:43:12 +0800 | [diff] [blame] | 444 | } |
| 445 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 446 | u64 intel_ring_get_active_head(struct intel_engine_cs *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 447 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 448 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
Chris Wilson | 5087744 | 2014-03-21 12:41:53 +0000 | [diff] [blame] | 449 | u64 acthd; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 450 | |
Chris Wilson | 5087744 | 2014-03-21 12:41:53 +0000 | [diff] [blame] | 451 | if (INTEL_INFO(ring->dev)->gen >= 8) |
| 452 | acthd = I915_READ64_2x32(RING_ACTHD(ring->mmio_base), |
| 453 | RING_ACTHD_UDW(ring->mmio_base)); |
| 454 | else if (INTEL_INFO(ring->dev)->gen >= 4) |
| 455 | acthd = I915_READ(RING_ACTHD(ring->mmio_base)); |
| 456 | else |
| 457 | acthd = I915_READ(ACTHD); |
| 458 | |
| 459 | return acthd; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 460 | } |
| 461 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 462 | static void ring_setup_phys_status_page(struct intel_engine_cs *ring) |
Daniel Vetter | 035dc1e | 2013-07-03 12:56:54 +0200 | [diff] [blame] | 463 | { |
| 464 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
| 465 | u32 addr; |
| 466 | |
| 467 | addr = dev_priv->status_page_dmah->busaddr; |
| 468 | if (INTEL_INFO(ring->dev)->gen >= 4) |
| 469 | addr |= (dev_priv->status_page_dmah->busaddr >> 28) & 0xf0; |
| 470 | I915_WRITE(HWS_PGA, addr); |
| 471 | } |
| 472 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 473 | static bool stop_ring(struct intel_engine_cs *ring) |
Chris Wilson | 9991ae7 | 2014-04-02 16:36:07 +0100 | [diff] [blame] | 474 | { |
| 475 | struct drm_i915_private *dev_priv = to_i915(ring->dev); |
| 476 | |
| 477 | if (!IS_GEN2(ring->dev)) { |
| 478 | I915_WRITE_MODE(ring, _MASKED_BIT_ENABLE(STOP_RING)); |
| 479 | if (wait_for_atomic((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) { |
| 480 | DRM_ERROR("%s :timed out trying to stop ring\n", ring->name); |
| 481 | return false; |
| 482 | } |
| 483 | } |
| 484 | |
| 485 | I915_WRITE_CTL(ring, 0); |
| 486 | I915_WRITE_HEAD(ring, 0); |
| 487 | ring->write_tail(ring, 0); |
| 488 | |
| 489 | if (!IS_GEN2(ring->dev)) { |
| 490 | (void)I915_READ_CTL(ring); |
| 491 | I915_WRITE_MODE(ring, _MASKED_BIT_DISABLE(STOP_RING)); |
| 492 | } |
| 493 | |
| 494 | return (I915_READ_HEAD(ring) & HEAD_ADDR) == 0; |
| 495 | } |
| 496 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 497 | static int init_ring_common(struct intel_engine_cs *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 498 | { |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 499 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 500 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 501 | struct intel_ringbuffer *ringbuf = ring->buffer; |
| 502 | struct drm_i915_gem_object *obj = ringbuf->obj; |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 503 | int ret = 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 504 | |
Deepak S | c8d9a59 | 2013-11-23 14:55:42 +0530 | [diff] [blame] | 505 | gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL); |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 506 | |
Chris Wilson | 9991ae7 | 2014-04-02 16:36:07 +0100 | [diff] [blame] | 507 | if (!stop_ring(ring)) { |
| 508 | /* G45 ring initialization often fails to reset head to zero */ |
Chris Wilson | 6fd0d56 | 2010-12-05 20:42:33 +0000 | [diff] [blame] | 509 | DRM_DEBUG_KMS("%s head not reset to zero " |
| 510 | "ctl %08x head %08x tail %08x start %08x\n", |
| 511 | ring->name, |
| 512 | I915_READ_CTL(ring), |
| 513 | I915_READ_HEAD(ring), |
| 514 | I915_READ_TAIL(ring), |
| 515 | I915_READ_START(ring)); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 516 | |
Chris Wilson | 9991ae7 | 2014-04-02 16:36:07 +0100 | [diff] [blame] | 517 | if (!stop_ring(ring)) { |
Chris Wilson | 6fd0d56 | 2010-12-05 20:42:33 +0000 | [diff] [blame] | 518 | DRM_ERROR("failed to set %s head to zero " |
| 519 | "ctl %08x head %08x tail %08x start %08x\n", |
| 520 | ring->name, |
| 521 | I915_READ_CTL(ring), |
| 522 | I915_READ_HEAD(ring), |
| 523 | I915_READ_TAIL(ring), |
| 524 | I915_READ_START(ring)); |
Chris Wilson | 9991ae7 | 2014-04-02 16:36:07 +0100 | [diff] [blame] | 525 | ret = -EIO; |
| 526 | goto out; |
Chris Wilson | 6fd0d56 | 2010-12-05 20:42:33 +0000 | [diff] [blame] | 527 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 528 | } |
| 529 | |
Chris Wilson | 9991ae7 | 2014-04-02 16:36:07 +0100 | [diff] [blame] | 530 | if (I915_NEED_GFX_HWS(dev)) |
| 531 | intel_ring_setup_status_page(ring); |
| 532 | else |
| 533 | ring_setup_phys_status_page(ring); |
| 534 | |
Daniel Vetter | 0d8957c | 2012-08-07 09:54:14 +0200 | [diff] [blame] | 535 | /* Initialize the ring. This must happen _after_ we've cleared the ring |
| 536 | * registers with the above sequence (the readback of the HEAD registers |
| 537 | * also enforces ordering), otherwise the hw might lose the new ring |
| 538 | * register values. */ |
Ben Widawsky | f343c5f | 2013-07-05 14:41:04 -0700 | [diff] [blame] | 539 | I915_WRITE_START(ring, i915_gem_obj_ggtt_offset(obj)); |
Daniel Vetter | 7f2ab69 | 2010-08-02 17:06:59 +0200 | [diff] [blame] | 540 | I915_WRITE_CTL(ring, |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 541 | ((ringbuf->size - PAGE_SIZE) & RING_NR_PAGES) |
Chris Wilson | 5d031e5 | 2012-02-08 13:34:13 +0000 | [diff] [blame] | 542 | | RING_VALID); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 543 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 544 | /* If the head is still not zero, the ring is dead */ |
Sean Paul | f01db98 | 2012-03-16 12:43:22 -0400 | [diff] [blame] | 545 | if (wait_for((I915_READ_CTL(ring) & RING_VALID) != 0 && |
Ben Widawsky | f343c5f | 2013-07-05 14:41:04 -0700 | [diff] [blame] | 546 | I915_READ_START(ring) == i915_gem_obj_ggtt_offset(obj) && |
Sean Paul | f01db98 | 2012-03-16 12:43:22 -0400 | [diff] [blame] | 547 | (I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) { |
Chris Wilson | e74cfed | 2010-11-09 10:16:56 +0000 | [diff] [blame] | 548 | DRM_ERROR("%s initialization failed " |
Chris Wilson | 48e48a0 | 2014-04-09 09:19:44 +0100 | [diff] [blame] | 549 | "ctl %08x (valid? %d) head %08x tail %08x start %08x [expected %08lx]\n", |
| 550 | ring->name, |
| 551 | I915_READ_CTL(ring), I915_READ_CTL(ring) & RING_VALID, |
| 552 | I915_READ_HEAD(ring), I915_READ_TAIL(ring), |
| 553 | I915_READ_START(ring), (unsigned long)i915_gem_obj_ggtt_offset(obj)); |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 554 | ret = -EIO; |
| 555 | goto out; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 556 | } |
| 557 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 558 | if (!drm_core_check_feature(ring->dev, DRIVER_MODESET)) |
| 559 | i915_kernel_lost_context(ring->dev); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 560 | else { |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 561 | ringbuf->head = I915_READ_HEAD(ring); |
| 562 | ringbuf->tail = I915_READ_TAIL(ring) & TAIL_ADDR; |
Oscar Mateo | 64c58f2 | 2014-07-03 16:28:03 +0100 | [diff] [blame] | 563 | ringbuf->space = ring_space(ringbuf); |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 564 | ringbuf->last_retired_head = -1; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 565 | } |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 566 | |
Chris Wilson | 50f018d | 2013-06-10 11:20:19 +0100 | [diff] [blame] | 567 | memset(&ring->hangcheck, 0, sizeof(ring->hangcheck)); |
| 568 | |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 569 | out: |
Deepak S | c8d9a59 | 2013-11-23 14:55:42 +0530 | [diff] [blame] | 570 | gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL); |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 571 | |
| 572 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 573 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 574 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 575 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 576 | init_pipe_control(struct intel_engine_cs *ring) |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 577 | { |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 578 | int ret; |
| 579 | |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 580 | if (ring->scratch.obj) |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 581 | return 0; |
| 582 | |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 583 | ring->scratch.obj = i915_gem_alloc_object(ring->dev, 4096); |
| 584 | if (ring->scratch.obj == NULL) { |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 585 | DRM_ERROR("Failed to allocate seqno page\n"); |
| 586 | ret = -ENOMEM; |
| 587 | goto err; |
| 588 | } |
Chris Wilson | e4ffd17 | 2011-04-04 09:44:39 +0100 | [diff] [blame] | 589 | |
Daniel Vetter | a9cc726 | 2014-02-14 14:01:13 +0100 | [diff] [blame] | 590 | ret = i915_gem_object_set_cache_level(ring->scratch.obj, I915_CACHE_LLC); |
| 591 | if (ret) |
| 592 | goto err_unref; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 593 | |
Daniel Vetter | 1ec9e26 | 2014-02-14 14:01:11 +0100 | [diff] [blame] | 594 | ret = i915_gem_obj_ggtt_pin(ring->scratch.obj, 4096, 0); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 595 | if (ret) |
| 596 | goto err_unref; |
| 597 | |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 598 | ring->scratch.gtt_offset = i915_gem_obj_ggtt_offset(ring->scratch.obj); |
| 599 | ring->scratch.cpu_page = kmap(sg_page(ring->scratch.obj->pages->sgl)); |
| 600 | if (ring->scratch.cpu_page == NULL) { |
Wei Yongjun | 56b085a | 2013-05-28 17:51:44 +0800 | [diff] [blame] | 601 | ret = -ENOMEM; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 602 | goto err_unpin; |
Wei Yongjun | 56b085a | 2013-05-28 17:51:44 +0800 | [diff] [blame] | 603 | } |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 604 | |
Ville Syrjälä | 2b1086c | 2013-02-12 22:01:38 +0200 | [diff] [blame] | 605 | DRM_DEBUG_DRIVER("%s pipe control offset: 0x%08x\n", |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 606 | ring->name, ring->scratch.gtt_offset); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 607 | return 0; |
| 608 | |
| 609 | err_unpin: |
Ben Widawsky | d7f46fc | 2013-12-06 14:10:55 -0800 | [diff] [blame] | 610 | i915_gem_object_ggtt_unpin(ring->scratch.obj); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 611 | err_unref: |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 612 | drm_gem_object_unreference(&ring->scratch.obj->base); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 613 | err: |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 614 | return ret; |
| 615 | } |
| 616 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 617 | static int init_render_ring(struct intel_engine_cs *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 618 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 619 | struct drm_device *dev = ring->dev; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 620 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 621 | int ret = init_ring_common(ring); |
Konrad Zapalowicz | 9c33baa | 2014-06-19 19:07:15 +0200 | [diff] [blame] | 622 | if (ret) |
| 623 | return ret; |
Zhenyu Wang | a69ffdb | 2010-08-30 16:12:42 +0800 | [diff] [blame] | 624 | |
Akash Goel | 61a563a | 2014-03-25 18:01:50 +0530 | [diff] [blame] | 625 | /* WaTimedSingleVertexDispatch:cl,bw,ctg,elk,ilk,snb */ |
| 626 | if (INTEL_INFO(dev)->gen >= 4 && INTEL_INFO(dev)->gen < 7) |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 627 | I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH)); |
Chris Wilson | 1c8c38c | 2013-01-20 16:11:20 +0000 | [diff] [blame] | 628 | |
| 629 | /* We need to disable the AsyncFlip performance optimisations in order |
| 630 | * to use MI_WAIT_FOR_EVENT within the CS. It should already be |
| 631 | * programmed to '1' on all products. |
Damien Lespiau | 8693a82 | 2013-05-03 18:48:11 +0100 | [diff] [blame] | 632 | * |
Ville Syrjälä | b3f797a | 2014-04-28 14:31:09 +0300 | [diff] [blame] | 633 | * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv,bdw,chv |
Chris Wilson | 1c8c38c | 2013-01-20 16:11:20 +0000 | [diff] [blame] | 634 | */ |
| 635 | if (INTEL_INFO(dev)->gen >= 6) |
| 636 | I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE)); |
| 637 | |
Chris Wilson | f05bb0c | 2013-01-20 16:33:32 +0000 | [diff] [blame] | 638 | /* Required for the hardware to program scanline values for waiting */ |
Akash Goel | 01fa030 | 2014-03-24 23:00:04 +0530 | [diff] [blame] | 639 | /* WaEnableFlushTlbInvalidationMode:snb */ |
Chris Wilson | f05bb0c | 2013-01-20 16:33:32 +0000 | [diff] [blame] | 640 | if (INTEL_INFO(dev)->gen == 6) |
| 641 | I915_WRITE(GFX_MODE, |
Chris Wilson | aa83e30 | 2014-03-21 17:18:54 +0000 | [diff] [blame] | 642 | _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT)); |
Chris Wilson | f05bb0c | 2013-01-20 16:33:32 +0000 | [diff] [blame] | 643 | |
Akash Goel | 01fa030 | 2014-03-24 23:00:04 +0530 | [diff] [blame] | 644 | /* WaBCSVCSTlbInvalidationMode:ivb,vlv,hsw */ |
Chris Wilson | 1c8c38c | 2013-01-20 16:11:20 +0000 | [diff] [blame] | 645 | if (IS_GEN7(dev)) |
| 646 | I915_WRITE(GFX_MODE_GEN7, |
Akash Goel | 01fa030 | 2014-03-24 23:00:04 +0530 | [diff] [blame] | 647 | _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT) | |
Chris Wilson | 1c8c38c | 2013-01-20 16:11:20 +0000 | [diff] [blame] | 648 | _MASKED_BIT_ENABLE(GFX_REPLAY_MODE)); |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 649 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 650 | if (INTEL_INFO(dev)->gen >= 5) { |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 651 | ret = init_pipe_control(ring); |
| 652 | if (ret) |
| 653 | return ret; |
| 654 | } |
| 655 | |
Daniel Vetter | 5e13a0c | 2012-05-08 13:39:59 +0200 | [diff] [blame] | 656 | if (IS_GEN6(dev)) { |
Kenneth Graunke | 3a69ddd | 2012-04-27 12:44:41 -0700 | [diff] [blame] | 657 | /* From the Sandybridge PRM, volume 1 part 3, page 24: |
| 658 | * "If this bit is set, STCunit will have LRA as replacement |
| 659 | * policy. [...] This bit must be reset. LRA replacement |
| 660 | * policy is not supported." |
| 661 | */ |
| 662 | I915_WRITE(CACHE_MODE_0, |
Daniel Vetter | 5e13a0c | 2012-05-08 13:39:59 +0200 | [diff] [blame] | 663 | _MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB)); |
Ben Widawsky | 84f9f93 | 2011-12-12 19:21:58 -0800 | [diff] [blame] | 664 | } |
| 665 | |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 666 | if (INTEL_INFO(dev)->gen >= 6) |
| 667 | I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING)); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 668 | |
Ben Widawsky | 040d2ba | 2013-09-19 11:01:40 -0700 | [diff] [blame] | 669 | if (HAS_L3_DPF(dev)) |
Ben Widawsky | 35a85ac | 2013-09-19 11:13:41 -0700 | [diff] [blame] | 670 | I915_WRITE_IMR(ring, ~GT_PARITY_ERROR(dev)); |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 671 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 672 | return ret; |
| 673 | } |
| 674 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 675 | static void render_ring_cleanup(struct intel_engine_cs *ring) |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 676 | { |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 677 | struct drm_device *dev = ring->dev; |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 678 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 679 | |
| 680 | if (dev_priv->semaphore_obj) { |
| 681 | i915_gem_object_ggtt_unpin(dev_priv->semaphore_obj); |
| 682 | drm_gem_object_unreference(&dev_priv->semaphore_obj->base); |
| 683 | dev_priv->semaphore_obj = NULL; |
| 684 | } |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 685 | |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 686 | if (ring->scratch.obj == NULL) |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 687 | return; |
| 688 | |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 689 | if (INTEL_INFO(dev)->gen >= 5) { |
| 690 | kunmap(sg_page(ring->scratch.obj->pages->sgl)); |
Ben Widawsky | d7f46fc | 2013-12-06 14:10:55 -0800 | [diff] [blame] | 691 | i915_gem_object_ggtt_unpin(ring->scratch.obj); |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 692 | } |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 693 | |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 694 | drm_gem_object_unreference(&ring->scratch.obj->base); |
| 695 | ring->scratch.obj = NULL; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 696 | } |
| 697 | |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 698 | static int gen8_rcs_signal(struct intel_engine_cs *signaller, |
| 699 | unsigned int num_dwords) |
| 700 | { |
| 701 | #define MBOX_UPDATE_DWORDS 8 |
| 702 | struct drm_device *dev = signaller->dev; |
| 703 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 704 | struct intel_engine_cs *waiter; |
| 705 | int i, ret, num_rings; |
| 706 | |
| 707 | num_rings = hweight32(INTEL_INFO(dev)->ring_mask); |
| 708 | num_dwords += (num_rings-1) * MBOX_UPDATE_DWORDS; |
| 709 | #undef MBOX_UPDATE_DWORDS |
| 710 | |
| 711 | ret = intel_ring_begin(signaller, num_dwords); |
| 712 | if (ret) |
| 713 | return ret; |
| 714 | |
| 715 | for_each_ring(waiter, dev_priv, i) { |
| 716 | u64 gtt_offset = signaller->semaphore.signal_ggtt[i]; |
| 717 | if (gtt_offset == MI_SEMAPHORE_SYNC_INVALID) |
| 718 | continue; |
| 719 | |
| 720 | intel_ring_emit(signaller, GFX_OP_PIPE_CONTROL(6)); |
| 721 | intel_ring_emit(signaller, PIPE_CONTROL_GLOBAL_GTT_IVB | |
| 722 | PIPE_CONTROL_QW_WRITE | |
| 723 | PIPE_CONTROL_FLUSH_ENABLE); |
| 724 | intel_ring_emit(signaller, lower_32_bits(gtt_offset)); |
| 725 | intel_ring_emit(signaller, upper_32_bits(gtt_offset)); |
| 726 | intel_ring_emit(signaller, signaller->outstanding_lazy_seqno); |
| 727 | intel_ring_emit(signaller, 0); |
| 728 | intel_ring_emit(signaller, MI_SEMAPHORE_SIGNAL | |
| 729 | MI_SEMAPHORE_TARGET(waiter->id)); |
| 730 | intel_ring_emit(signaller, 0); |
| 731 | } |
| 732 | |
| 733 | return 0; |
| 734 | } |
| 735 | |
| 736 | static int gen8_xcs_signal(struct intel_engine_cs *signaller, |
| 737 | unsigned int num_dwords) |
| 738 | { |
| 739 | #define MBOX_UPDATE_DWORDS 6 |
| 740 | struct drm_device *dev = signaller->dev; |
| 741 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 742 | struct intel_engine_cs *waiter; |
| 743 | int i, ret, num_rings; |
| 744 | |
| 745 | num_rings = hweight32(INTEL_INFO(dev)->ring_mask); |
| 746 | num_dwords += (num_rings-1) * MBOX_UPDATE_DWORDS; |
| 747 | #undef MBOX_UPDATE_DWORDS |
| 748 | |
| 749 | ret = intel_ring_begin(signaller, num_dwords); |
| 750 | if (ret) |
| 751 | return ret; |
| 752 | |
| 753 | for_each_ring(waiter, dev_priv, i) { |
| 754 | u64 gtt_offset = signaller->semaphore.signal_ggtt[i]; |
| 755 | if (gtt_offset == MI_SEMAPHORE_SYNC_INVALID) |
| 756 | continue; |
| 757 | |
| 758 | intel_ring_emit(signaller, (MI_FLUSH_DW + 1) | |
| 759 | MI_FLUSH_DW_OP_STOREDW); |
| 760 | intel_ring_emit(signaller, lower_32_bits(gtt_offset) | |
| 761 | MI_FLUSH_DW_USE_GTT); |
| 762 | intel_ring_emit(signaller, upper_32_bits(gtt_offset)); |
| 763 | intel_ring_emit(signaller, signaller->outstanding_lazy_seqno); |
| 764 | intel_ring_emit(signaller, MI_SEMAPHORE_SIGNAL | |
| 765 | MI_SEMAPHORE_TARGET(waiter->id)); |
| 766 | intel_ring_emit(signaller, 0); |
| 767 | } |
| 768 | |
| 769 | return 0; |
| 770 | } |
| 771 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 772 | static int gen6_signal(struct intel_engine_cs *signaller, |
Ben Widawsky | 024a43e | 2014-04-29 14:52:30 -0700 | [diff] [blame] | 773 | unsigned int num_dwords) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 774 | { |
Ben Widawsky | 024a43e | 2014-04-29 14:52:30 -0700 | [diff] [blame] | 775 | struct drm_device *dev = signaller->dev; |
| 776 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 777 | struct intel_engine_cs *useless; |
Ben Widawsky | a1444b7 | 2014-06-30 09:53:35 -0700 | [diff] [blame] | 778 | int i, ret, num_rings; |
Ben Widawsky | 78325f2 | 2014-04-29 14:52:29 -0700 | [diff] [blame] | 779 | |
Ben Widawsky | a1444b7 | 2014-06-30 09:53:35 -0700 | [diff] [blame] | 780 | #define MBOX_UPDATE_DWORDS 3 |
| 781 | num_rings = hweight32(INTEL_INFO(dev)->ring_mask); |
| 782 | num_dwords += round_up((num_rings-1) * MBOX_UPDATE_DWORDS, 2); |
| 783 | #undef MBOX_UPDATE_DWORDS |
Ben Widawsky | 024a43e | 2014-04-29 14:52:30 -0700 | [diff] [blame] | 784 | |
| 785 | ret = intel_ring_begin(signaller, num_dwords); |
| 786 | if (ret) |
| 787 | return ret; |
Ben Widawsky | 024a43e | 2014-04-29 14:52:30 -0700 | [diff] [blame] | 788 | |
Ben Widawsky | 78325f2 | 2014-04-29 14:52:29 -0700 | [diff] [blame] | 789 | for_each_ring(useless, dev_priv, i) { |
| 790 | u32 mbox_reg = signaller->semaphore.mbox.signal[i]; |
| 791 | if (mbox_reg != GEN6_NOSYNC) { |
| 792 | intel_ring_emit(signaller, MI_LOAD_REGISTER_IMM(1)); |
| 793 | intel_ring_emit(signaller, mbox_reg); |
| 794 | intel_ring_emit(signaller, signaller->outstanding_lazy_seqno); |
Ben Widawsky | 78325f2 | 2014-04-29 14:52:29 -0700 | [diff] [blame] | 795 | } |
| 796 | } |
Ben Widawsky | 024a43e | 2014-04-29 14:52:30 -0700 | [diff] [blame] | 797 | |
Ben Widawsky | a1444b7 | 2014-06-30 09:53:35 -0700 | [diff] [blame] | 798 | /* If num_dwords was rounded, make sure the tail pointer is correct */ |
| 799 | if (num_rings % 2 == 0) |
| 800 | intel_ring_emit(signaller, MI_NOOP); |
| 801 | |
Ben Widawsky | 024a43e | 2014-04-29 14:52:30 -0700 | [diff] [blame] | 802 | return 0; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 803 | } |
| 804 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 805 | /** |
| 806 | * gen6_add_request - Update the semaphore mailbox registers |
| 807 | * |
| 808 | * @ring - ring that is adding a request |
| 809 | * @seqno - return seqno stuck into the ring |
| 810 | * |
| 811 | * Update the mailbox registers in the *other* rings with the current seqno. |
| 812 | * This acts like a signal in the canonical semaphore. |
| 813 | */ |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 814 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 815 | gen6_add_request(struct intel_engine_cs *ring) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 816 | { |
Ben Widawsky | 024a43e | 2014-04-29 14:52:30 -0700 | [diff] [blame] | 817 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 818 | |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 819 | if (ring->semaphore.signal) |
| 820 | ret = ring->semaphore.signal(ring, 4); |
| 821 | else |
| 822 | ret = intel_ring_begin(ring, 4); |
| 823 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 824 | if (ret) |
| 825 | return ret; |
| 826 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 827 | intel_ring_emit(ring, MI_STORE_DWORD_INDEX); |
| 828 | intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); |
Chris Wilson | 1823521 | 2013-09-04 10:45:51 +0100 | [diff] [blame] | 829 | intel_ring_emit(ring, ring->outstanding_lazy_seqno); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 830 | intel_ring_emit(ring, MI_USER_INTERRUPT); |
Chris Wilson | 0924673 | 2013-08-10 22:16:32 +0100 | [diff] [blame] | 831 | __intel_ring_advance(ring); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 832 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 833 | return 0; |
| 834 | } |
| 835 | |
Mika Kuoppala | f72b343 | 2012-12-10 15:41:48 +0200 | [diff] [blame] | 836 | static inline bool i915_gem_has_seqno_wrapped(struct drm_device *dev, |
| 837 | u32 seqno) |
| 838 | { |
| 839 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 840 | return dev_priv->last_seqno < seqno; |
| 841 | } |
| 842 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 843 | /** |
| 844 | * intel_ring_sync - sync the waiter to the signaller on seqno |
| 845 | * |
| 846 | * @waiter - ring that is waiting |
| 847 | * @signaller - ring which has, or will signal |
| 848 | * @seqno - seqno which the waiter will block on |
| 849 | */ |
Ben Widawsky | 5ee426c | 2014-06-30 09:53:38 -0700 | [diff] [blame] | 850 | |
| 851 | static int |
| 852 | gen8_ring_sync(struct intel_engine_cs *waiter, |
| 853 | struct intel_engine_cs *signaller, |
| 854 | u32 seqno) |
| 855 | { |
| 856 | struct drm_i915_private *dev_priv = waiter->dev->dev_private; |
| 857 | int ret; |
| 858 | |
| 859 | ret = intel_ring_begin(waiter, 4); |
| 860 | if (ret) |
| 861 | return ret; |
| 862 | |
| 863 | intel_ring_emit(waiter, MI_SEMAPHORE_WAIT | |
| 864 | MI_SEMAPHORE_GLOBAL_GTT | |
Ben Widawsky | bae4fcd | 2014-06-30 09:53:43 -0700 | [diff] [blame] | 865 | MI_SEMAPHORE_POLL | |
Ben Widawsky | 5ee426c | 2014-06-30 09:53:38 -0700 | [diff] [blame] | 866 | MI_SEMAPHORE_SAD_GTE_SDD); |
| 867 | intel_ring_emit(waiter, seqno); |
| 868 | intel_ring_emit(waiter, |
| 869 | lower_32_bits(GEN8_WAIT_OFFSET(waiter, signaller->id))); |
| 870 | intel_ring_emit(waiter, |
| 871 | upper_32_bits(GEN8_WAIT_OFFSET(waiter, signaller->id))); |
| 872 | intel_ring_advance(waiter); |
| 873 | return 0; |
| 874 | } |
| 875 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 876 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 877 | gen6_ring_sync(struct intel_engine_cs *waiter, |
| 878 | struct intel_engine_cs *signaller, |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 879 | u32 seqno) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 880 | { |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 881 | u32 dw1 = MI_SEMAPHORE_MBOX | |
| 882 | MI_SEMAPHORE_COMPARE | |
| 883 | MI_SEMAPHORE_REGISTER; |
Ben Widawsky | ebc348b | 2014-04-29 14:52:28 -0700 | [diff] [blame] | 884 | u32 wait_mbox = signaller->semaphore.mbox.wait[waiter->id]; |
| 885 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 886 | |
Ben Widawsky | 1500f7e | 2012-04-11 11:18:21 -0700 | [diff] [blame] | 887 | /* Throughout all of the GEM code, seqno passed implies our current |
| 888 | * seqno is >= the last seqno executed. However for hardware the |
| 889 | * comparison is strictly greater than. |
| 890 | */ |
| 891 | seqno -= 1; |
| 892 | |
Ben Widawsky | ebc348b | 2014-04-29 14:52:28 -0700 | [diff] [blame] | 893 | WARN_ON(wait_mbox == MI_SEMAPHORE_SYNC_INVALID); |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 894 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 895 | ret = intel_ring_begin(waiter, 4); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 896 | if (ret) |
| 897 | return ret; |
| 898 | |
Mika Kuoppala | f72b343 | 2012-12-10 15:41:48 +0200 | [diff] [blame] | 899 | /* If seqno wrap happened, omit the wait with no-ops */ |
| 900 | if (likely(!i915_gem_has_seqno_wrapped(waiter->dev, seqno))) { |
Ben Widawsky | ebc348b | 2014-04-29 14:52:28 -0700 | [diff] [blame] | 901 | intel_ring_emit(waiter, dw1 | wait_mbox); |
Mika Kuoppala | f72b343 | 2012-12-10 15:41:48 +0200 | [diff] [blame] | 902 | intel_ring_emit(waiter, seqno); |
| 903 | intel_ring_emit(waiter, 0); |
| 904 | intel_ring_emit(waiter, MI_NOOP); |
| 905 | } else { |
| 906 | intel_ring_emit(waiter, MI_NOOP); |
| 907 | intel_ring_emit(waiter, MI_NOOP); |
| 908 | intel_ring_emit(waiter, MI_NOOP); |
| 909 | intel_ring_emit(waiter, MI_NOOP); |
| 910 | } |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 911 | intel_ring_advance(waiter); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 912 | |
| 913 | return 0; |
| 914 | } |
| 915 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 916 | #define PIPE_CONTROL_FLUSH(ring__, addr__) \ |
| 917 | do { \ |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 918 | intel_ring_emit(ring__, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE | \ |
| 919 | PIPE_CONTROL_DEPTH_STALL); \ |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 920 | intel_ring_emit(ring__, (addr__) | PIPE_CONTROL_GLOBAL_GTT); \ |
| 921 | intel_ring_emit(ring__, 0); \ |
| 922 | intel_ring_emit(ring__, 0); \ |
| 923 | } while (0) |
| 924 | |
| 925 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 926 | pc_render_add_request(struct intel_engine_cs *ring) |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 927 | { |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 928 | u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 929 | int ret; |
| 930 | |
| 931 | /* For Ironlake, MI_USER_INTERRUPT was deprecated and apparently |
| 932 | * incoherent with writes to memory, i.e. completely fubar, |
| 933 | * so we need to use PIPE_NOTIFY instead. |
| 934 | * |
| 935 | * However, we also need to workaround the qword write |
| 936 | * incoherence by flushing the 6 PIPE_NOTIFY buffers out to |
| 937 | * memory before requesting an interrupt. |
| 938 | */ |
| 939 | ret = intel_ring_begin(ring, 32); |
| 940 | if (ret) |
| 941 | return ret; |
| 942 | |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 943 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE | |
Kenneth Graunke | 9d971b3 | 2011-10-11 23:41:09 +0200 | [diff] [blame] | 944 | PIPE_CONTROL_WRITE_FLUSH | |
| 945 | PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE); |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 946 | intel_ring_emit(ring, ring->scratch.gtt_offset | PIPE_CONTROL_GLOBAL_GTT); |
Chris Wilson | 1823521 | 2013-09-04 10:45:51 +0100 | [diff] [blame] | 947 | intel_ring_emit(ring, ring->outstanding_lazy_seqno); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 948 | intel_ring_emit(ring, 0); |
| 949 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 950 | scratch_addr += 2 * CACHELINE_BYTES; /* write to separate cachelines */ |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 951 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 952 | scratch_addr += 2 * CACHELINE_BYTES; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 953 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 954 | scratch_addr += 2 * CACHELINE_BYTES; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 955 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 956 | scratch_addr += 2 * CACHELINE_BYTES; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 957 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 958 | scratch_addr += 2 * CACHELINE_BYTES; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 959 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 960 | |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 961 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE | |
Kenneth Graunke | 9d971b3 | 2011-10-11 23:41:09 +0200 | [diff] [blame] | 962 | PIPE_CONTROL_WRITE_FLUSH | |
| 963 | PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 964 | PIPE_CONTROL_NOTIFY); |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 965 | intel_ring_emit(ring, ring->scratch.gtt_offset | PIPE_CONTROL_GLOBAL_GTT); |
Chris Wilson | 1823521 | 2013-09-04 10:45:51 +0100 | [diff] [blame] | 966 | intel_ring_emit(ring, ring->outstanding_lazy_seqno); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 967 | intel_ring_emit(ring, 0); |
Chris Wilson | 0924673 | 2013-08-10 22:16:32 +0100 | [diff] [blame] | 968 | __intel_ring_advance(ring); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 969 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 970 | return 0; |
| 971 | } |
| 972 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 973 | static u32 |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 974 | gen6_ring_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency) |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 975 | { |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 976 | /* Workaround to force correct ordering between irq and seqno writes on |
| 977 | * ivb (and maybe also on snb) by reading from a CS register (like |
| 978 | * ACTHD) before reading the status page. */ |
Chris Wilson | 5087744 | 2014-03-21 12:41:53 +0000 | [diff] [blame] | 979 | if (!lazy_coherency) { |
| 980 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
| 981 | POSTING_READ(RING_ACTHD(ring->mmio_base)); |
| 982 | } |
| 983 | |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 984 | return intel_read_status_page(ring, I915_GEM_HWS_INDEX); |
| 985 | } |
| 986 | |
| 987 | static u32 |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 988 | ring_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 989 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 990 | return intel_read_status_page(ring, I915_GEM_HWS_INDEX); |
| 991 | } |
| 992 | |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 993 | static void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 994 | ring_set_seqno(struct intel_engine_cs *ring, u32 seqno) |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 995 | { |
| 996 | intel_write_status_page(ring, I915_GEM_HWS_INDEX, seqno); |
| 997 | } |
| 998 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 999 | static u32 |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1000 | pc_render_get_seqno(struct intel_engine_cs *ring, bool lazy_coherency) |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 1001 | { |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 1002 | return ring->scratch.cpu_page[0]; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 1003 | } |
| 1004 | |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 1005 | static void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1006 | pc_render_set_seqno(struct intel_engine_cs *ring, u32 seqno) |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 1007 | { |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 1008 | ring->scratch.cpu_page[0] = seqno; |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 1009 | } |
| 1010 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 1011 | static bool |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1012 | gen5_ring_get_irq(struct intel_engine_cs *ring) |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1013 | { |
| 1014 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1015 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1016 | unsigned long flags; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1017 | |
| 1018 | if (!dev->irq_enabled) |
| 1019 | return false; |
| 1020 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1021 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Paulo Zanoni | 43eaea1 | 2013-08-06 18:57:12 -0300 | [diff] [blame] | 1022 | if (ring->irq_refcount++ == 0) |
Daniel Vetter | 480c803 | 2014-07-16 09:49:40 +0200 | [diff] [blame] | 1023 | gen5_enable_gt_irq(dev_priv, ring->irq_enable_mask); |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1024 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1025 | |
| 1026 | return true; |
| 1027 | } |
| 1028 | |
| 1029 | static void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1030 | gen5_ring_put_irq(struct intel_engine_cs *ring) |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1031 | { |
| 1032 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1033 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1034 | unsigned long flags; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1035 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1036 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Paulo Zanoni | 43eaea1 | 2013-08-06 18:57:12 -0300 | [diff] [blame] | 1037 | if (--ring->irq_refcount == 0) |
Daniel Vetter | 480c803 | 2014-07-16 09:49:40 +0200 | [diff] [blame] | 1038 | gen5_disable_gt_irq(dev_priv, ring->irq_enable_mask); |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1039 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1040 | } |
| 1041 | |
| 1042 | static bool |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1043 | i9xx_ring_get_irq(struct intel_engine_cs *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1044 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1045 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1046 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1047 | unsigned long flags; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1048 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 1049 | if (!dev->irq_enabled) |
| 1050 | return false; |
| 1051 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1052 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | c7113cc | 2013-07-04 23:35:29 +0200 | [diff] [blame] | 1053 | if (ring->irq_refcount++ == 0) { |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 1054 | dev_priv->irq_mask &= ~ring->irq_enable_mask; |
| 1055 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 1056 | POSTING_READ(IMR); |
| 1057 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1058 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 1059 | |
| 1060 | return true; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1061 | } |
| 1062 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1063 | static void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1064 | i9xx_ring_put_irq(struct intel_engine_cs *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1065 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1066 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1067 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1068 | unsigned long flags; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1069 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1070 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | c7113cc | 2013-07-04 23:35:29 +0200 | [diff] [blame] | 1071 | if (--ring->irq_refcount == 0) { |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 1072 | dev_priv->irq_mask |= ring->irq_enable_mask; |
| 1073 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 1074 | POSTING_READ(IMR); |
| 1075 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1076 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1077 | } |
| 1078 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1079 | static bool |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1080 | i8xx_ring_get_irq(struct intel_engine_cs *ring) |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1081 | { |
| 1082 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1083 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1084 | unsigned long flags; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1085 | |
| 1086 | if (!dev->irq_enabled) |
| 1087 | return false; |
| 1088 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1089 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | c7113cc | 2013-07-04 23:35:29 +0200 | [diff] [blame] | 1090 | if (ring->irq_refcount++ == 0) { |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1091 | dev_priv->irq_mask &= ~ring->irq_enable_mask; |
| 1092 | I915_WRITE16(IMR, dev_priv->irq_mask); |
| 1093 | POSTING_READ16(IMR); |
| 1094 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1095 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1096 | |
| 1097 | return true; |
| 1098 | } |
| 1099 | |
| 1100 | static void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1101 | i8xx_ring_put_irq(struct intel_engine_cs *ring) |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1102 | { |
| 1103 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1104 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1105 | unsigned long flags; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1106 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1107 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | c7113cc | 2013-07-04 23:35:29 +0200 | [diff] [blame] | 1108 | if (--ring->irq_refcount == 0) { |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1109 | dev_priv->irq_mask |= ring->irq_enable_mask; |
| 1110 | I915_WRITE16(IMR, dev_priv->irq_mask); |
| 1111 | POSTING_READ16(IMR); |
| 1112 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1113 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1114 | } |
| 1115 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1116 | void intel_ring_setup_status_page(struct intel_engine_cs *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1117 | { |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 1118 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1119 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 1120 | u32 mmio = 0; |
| 1121 | |
| 1122 | /* The ring status page addresses are no longer next to the rest of |
| 1123 | * the ring registers as of gen7. |
| 1124 | */ |
| 1125 | if (IS_GEN7(dev)) { |
| 1126 | switch (ring->id) { |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 1127 | case RCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 1128 | mmio = RENDER_HWS_PGA_GEN7; |
| 1129 | break; |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 1130 | case BCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 1131 | mmio = BLT_HWS_PGA_GEN7; |
| 1132 | break; |
Zhao Yakui | 77fe2ff | 2014-04-17 10:37:39 +0800 | [diff] [blame] | 1133 | /* |
| 1134 | * VCS2 actually doesn't exist on Gen7. Only shut up |
| 1135 | * gcc switch check warning |
| 1136 | */ |
| 1137 | case VCS2: |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 1138 | case VCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 1139 | mmio = BSD_HWS_PGA_GEN7; |
| 1140 | break; |
Ben Widawsky | 4a3dd19 | 2013-05-28 19:22:19 -0700 | [diff] [blame] | 1141 | case VECS: |
Ben Widawsky | 9a8a221 | 2013-05-28 19:22:23 -0700 | [diff] [blame] | 1142 | mmio = VEBOX_HWS_PGA_GEN7; |
| 1143 | break; |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 1144 | } |
| 1145 | } else if (IS_GEN6(ring->dev)) { |
| 1146 | mmio = RING_HWS_PGA_GEN6(ring->mmio_base); |
| 1147 | } else { |
Ben Widawsky | eb0d4b7 | 2013-11-07 21:40:50 -0800 | [diff] [blame] | 1148 | /* XXX: gen8 returns to sanity */ |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 1149 | mmio = RING_HWS_PGA(ring->mmio_base); |
| 1150 | } |
| 1151 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1152 | I915_WRITE(mmio, (u32)ring->status_page.gfx_addr); |
| 1153 | POSTING_READ(mmio); |
Chris Wilson | 884020b | 2013-08-06 19:01:14 +0100 | [diff] [blame] | 1154 | |
Damien Lespiau | dc616b8 | 2014-03-13 01:40:28 +0000 | [diff] [blame] | 1155 | /* |
| 1156 | * Flush the TLB for this page |
| 1157 | * |
| 1158 | * FIXME: These two bits have disappeared on gen8, so a question |
| 1159 | * arises: do we still need this and if so how should we go about |
| 1160 | * invalidating the TLB? |
| 1161 | */ |
| 1162 | if (INTEL_INFO(dev)->gen >= 6 && INTEL_INFO(dev)->gen < 8) { |
Chris Wilson | 884020b | 2013-08-06 19:01:14 +0100 | [diff] [blame] | 1163 | u32 reg = RING_INSTPM(ring->mmio_base); |
Naresh Kumar Kachhi | 02f6a1e | 2014-03-12 16:39:42 +0530 | [diff] [blame] | 1164 | |
| 1165 | /* ring should be idle before issuing a sync flush*/ |
| 1166 | WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0); |
| 1167 | |
Chris Wilson | 884020b | 2013-08-06 19:01:14 +0100 | [diff] [blame] | 1168 | I915_WRITE(reg, |
| 1169 | _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE | |
| 1170 | INSTPM_SYNC_FLUSH)); |
| 1171 | if (wait_for((I915_READ(reg) & INSTPM_SYNC_FLUSH) == 0, |
| 1172 | 1000)) |
| 1173 | DRM_ERROR("%s: wait for SyncFlush to complete for TLB invalidation timed out\n", |
| 1174 | ring->name); |
| 1175 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1176 | } |
| 1177 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1178 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1179 | bsd_ring_flush(struct intel_engine_cs *ring, |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1180 | u32 invalidate_domains, |
| 1181 | u32 flush_domains) |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1182 | { |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1183 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1184 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1185 | ret = intel_ring_begin(ring, 2); |
| 1186 | if (ret) |
| 1187 | return ret; |
| 1188 | |
| 1189 | intel_ring_emit(ring, MI_FLUSH); |
| 1190 | intel_ring_emit(ring, MI_NOOP); |
| 1191 | intel_ring_advance(ring); |
| 1192 | return 0; |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1193 | } |
| 1194 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 1195 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1196 | i9xx_add_request(struct intel_engine_cs *ring) |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1197 | { |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 1198 | int ret; |
| 1199 | |
| 1200 | ret = intel_ring_begin(ring, 4); |
| 1201 | if (ret) |
| 1202 | return ret; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 1203 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 1204 | intel_ring_emit(ring, MI_STORE_DWORD_INDEX); |
| 1205 | intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); |
Chris Wilson | 1823521 | 2013-09-04 10:45:51 +0100 | [diff] [blame] | 1206 | intel_ring_emit(ring, ring->outstanding_lazy_seqno); |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 1207 | intel_ring_emit(ring, MI_USER_INTERRUPT); |
Chris Wilson | 0924673 | 2013-08-10 22:16:32 +0100 | [diff] [blame] | 1208 | __intel_ring_advance(ring); |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1209 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 1210 | return 0; |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1211 | } |
| 1212 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 1213 | static bool |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1214 | gen6_ring_get_irq(struct intel_engine_cs *ring) |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 1215 | { |
| 1216 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1217 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1218 | unsigned long flags; |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 1219 | |
| 1220 | if (!dev->irq_enabled) |
| 1221 | return false; |
| 1222 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1223 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | c7113cc | 2013-07-04 23:35:29 +0200 | [diff] [blame] | 1224 | if (ring->irq_refcount++ == 0) { |
Ben Widawsky | 040d2ba | 2013-09-19 11:01:40 -0700 | [diff] [blame] | 1225 | if (HAS_L3_DPF(dev) && ring->id == RCS) |
Ben Widawsky | cc609d5 | 2013-05-28 19:22:29 -0700 | [diff] [blame] | 1226 | I915_WRITE_IMR(ring, |
| 1227 | ~(ring->irq_enable_mask | |
Ben Widawsky | 35a85ac | 2013-09-19 11:13:41 -0700 | [diff] [blame] | 1228 | GT_PARITY_ERROR(dev))); |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 1229 | else |
| 1230 | I915_WRITE_IMR(ring, ~ring->irq_enable_mask); |
Daniel Vetter | 480c803 | 2014-07-16 09:49:40 +0200 | [diff] [blame] | 1231 | gen5_enable_gt_irq(dev_priv, ring->irq_enable_mask); |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 1232 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1233 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 1234 | |
| 1235 | return true; |
| 1236 | } |
| 1237 | |
| 1238 | static void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1239 | gen6_ring_put_irq(struct intel_engine_cs *ring) |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 1240 | { |
| 1241 | struct drm_device *dev = ring->dev; |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1242 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1243 | unsigned long flags; |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 1244 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1245 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | c7113cc | 2013-07-04 23:35:29 +0200 | [diff] [blame] | 1246 | if (--ring->irq_refcount == 0) { |
Ben Widawsky | 040d2ba | 2013-09-19 11:01:40 -0700 | [diff] [blame] | 1247 | if (HAS_L3_DPF(dev) && ring->id == RCS) |
Ben Widawsky | 35a85ac | 2013-09-19 11:13:41 -0700 | [diff] [blame] | 1248 | I915_WRITE_IMR(ring, ~GT_PARITY_ERROR(dev)); |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 1249 | else |
| 1250 | I915_WRITE_IMR(ring, ~0); |
Daniel Vetter | 480c803 | 2014-07-16 09:49:40 +0200 | [diff] [blame] | 1251 | gen5_disable_gt_irq(dev_priv, ring->irq_enable_mask); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1252 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 1253 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1254 | } |
| 1255 | |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1256 | static bool |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1257 | hsw_vebox_get_irq(struct intel_engine_cs *ring) |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1258 | { |
| 1259 | struct drm_device *dev = ring->dev; |
| 1260 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1261 | unsigned long flags; |
| 1262 | |
| 1263 | if (!dev->irq_enabled) |
| 1264 | return false; |
| 1265 | |
Daniel Vetter | 59cdb63 | 2013-07-04 23:35:28 +0200 | [diff] [blame] | 1266 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | c7113cc | 2013-07-04 23:35:29 +0200 | [diff] [blame] | 1267 | if (ring->irq_refcount++ == 0) { |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1268 | I915_WRITE_IMR(ring, ~ring->irq_enable_mask); |
Daniel Vetter | 480c803 | 2014-07-16 09:49:40 +0200 | [diff] [blame] | 1269 | gen6_enable_pm_irq(dev_priv, ring->irq_enable_mask); |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1270 | } |
Daniel Vetter | 59cdb63 | 2013-07-04 23:35:28 +0200 | [diff] [blame] | 1271 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1272 | |
| 1273 | return true; |
| 1274 | } |
| 1275 | |
| 1276 | static void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1277 | hsw_vebox_put_irq(struct intel_engine_cs *ring) |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1278 | { |
| 1279 | struct drm_device *dev = ring->dev; |
| 1280 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1281 | unsigned long flags; |
| 1282 | |
| 1283 | if (!dev->irq_enabled) |
| 1284 | return; |
| 1285 | |
Daniel Vetter | 59cdb63 | 2013-07-04 23:35:28 +0200 | [diff] [blame] | 1286 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | c7113cc | 2013-07-04 23:35:29 +0200 | [diff] [blame] | 1287 | if (--ring->irq_refcount == 0) { |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1288 | I915_WRITE_IMR(ring, ~0); |
Daniel Vetter | 480c803 | 2014-07-16 09:49:40 +0200 | [diff] [blame] | 1289 | gen6_disable_pm_irq(dev_priv, ring->irq_enable_mask); |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1290 | } |
Daniel Vetter | 59cdb63 | 2013-07-04 23:35:28 +0200 | [diff] [blame] | 1291 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Ben Widawsky | a19d293 | 2013-05-28 19:22:30 -0700 | [diff] [blame] | 1292 | } |
| 1293 | |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 1294 | static bool |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1295 | gen8_ring_get_irq(struct intel_engine_cs *ring) |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 1296 | { |
| 1297 | struct drm_device *dev = ring->dev; |
| 1298 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1299 | unsigned long flags; |
| 1300 | |
| 1301 | if (!dev->irq_enabled) |
| 1302 | return false; |
| 1303 | |
| 1304 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
| 1305 | if (ring->irq_refcount++ == 0) { |
| 1306 | if (HAS_L3_DPF(dev) && ring->id == RCS) { |
| 1307 | I915_WRITE_IMR(ring, |
| 1308 | ~(ring->irq_enable_mask | |
| 1309 | GT_RENDER_L3_PARITY_ERROR_INTERRUPT)); |
| 1310 | } else { |
| 1311 | I915_WRITE_IMR(ring, ~ring->irq_enable_mask); |
| 1312 | } |
| 1313 | POSTING_READ(RING_IMR(ring->mmio_base)); |
| 1314 | } |
| 1315 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
| 1316 | |
| 1317 | return true; |
| 1318 | } |
| 1319 | |
| 1320 | static void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1321 | gen8_ring_put_irq(struct intel_engine_cs *ring) |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 1322 | { |
| 1323 | struct drm_device *dev = ring->dev; |
| 1324 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 1325 | unsigned long flags; |
| 1326 | |
| 1327 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
| 1328 | if (--ring->irq_refcount == 0) { |
| 1329 | if (HAS_L3_DPF(dev) && ring->id == RCS) { |
| 1330 | I915_WRITE_IMR(ring, |
| 1331 | ~GT_RENDER_L3_PARITY_ERROR_INTERRUPT); |
| 1332 | } else { |
| 1333 | I915_WRITE_IMR(ring, ~0); |
| 1334 | } |
| 1335 | POSTING_READ(RING_IMR(ring->mmio_base)); |
| 1336 | } |
| 1337 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
| 1338 | } |
| 1339 | |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1340 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1341 | i965_dispatch_execbuffer(struct intel_engine_cs *ring, |
Ben Widawsky | 9bcb144 | 2014-04-28 19:29:25 -0700 | [diff] [blame] | 1342 | u64 offset, u32 length, |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 1343 | unsigned flags) |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1344 | { |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1345 | int ret; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1346 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1347 | ret = intel_ring_begin(ring, 2); |
| 1348 | if (ret) |
| 1349 | return ret; |
| 1350 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1351 | intel_ring_emit(ring, |
Chris Wilson | 65f5687 | 2012-04-17 16:38:12 +0100 | [diff] [blame] | 1352 | MI_BATCH_BUFFER_START | |
| 1353 | MI_BATCH_GTT | |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 1354 | (flags & I915_DISPATCH_SECURE ? 0 : MI_BATCH_NON_SECURE_I965)); |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 1355 | intel_ring_emit(ring, offset); |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1356 | intel_ring_advance(ring); |
| 1357 | |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1358 | return 0; |
| 1359 | } |
| 1360 | |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 1361 | /* Just userspace ABI convention to limit the wa batch bo to a resonable size */ |
| 1362 | #define I830_BATCH_LIMIT (256*1024) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1363 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1364 | i830_dispatch_execbuffer(struct intel_engine_cs *ring, |
Ben Widawsky | 9bcb144 | 2014-04-28 19:29:25 -0700 | [diff] [blame] | 1365 | u64 offset, u32 len, |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 1366 | unsigned flags) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1367 | { |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 1368 | int ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1369 | |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 1370 | if (flags & I915_DISPATCH_PINNED) { |
| 1371 | ret = intel_ring_begin(ring, 4); |
| 1372 | if (ret) |
| 1373 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1374 | |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 1375 | intel_ring_emit(ring, MI_BATCH_BUFFER); |
| 1376 | intel_ring_emit(ring, offset | (flags & I915_DISPATCH_SECURE ? 0 : MI_BATCH_NON_SECURE)); |
| 1377 | intel_ring_emit(ring, offset + len - 8); |
| 1378 | intel_ring_emit(ring, MI_NOOP); |
| 1379 | intel_ring_advance(ring); |
| 1380 | } else { |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 1381 | u32 cs_offset = ring->scratch.gtt_offset; |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 1382 | |
| 1383 | if (len > I830_BATCH_LIMIT) |
| 1384 | return -ENOSPC; |
| 1385 | |
| 1386 | ret = intel_ring_begin(ring, 9+3); |
| 1387 | if (ret) |
| 1388 | return ret; |
| 1389 | /* Blit the batch (which has now all relocs applied) to the stable batch |
| 1390 | * scratch bo area (so that the CS never stumbles over its tlb |
| 1391 | * invalidation bug) ... */ |
| 1392 | intel_ring_emit(ring, XY_SRC_COPY_BLT_CMD | |
| 1393 | XY_SRC_COPY_BLT_WRITE_ALPHA | |
| 1394 | XY_SRC_COPY_BLT_WRITE_RGB); |
| 1395 | intel_ring_emit(ring, BLT_DEPTH_32 | BLT_ROP_GXCOPY | 4096); |
| 1396 | intel_ring_emit(ring, 0); |
| 1397 | intel_ring_emit(ring, (DIV_ROUND_UP(len, 4096) << 16) | 1024); |
| 1398 | intel_ring_emit(ring, cs_offset); |
| 1399 | intel_ring_emit(ring, 0); |
| 1400 | intel_ring_emit(ring, 4096); |
| 1401 | intel_ring_emit(ring, offset); |
| 1402 | intel_ring_emit(ring, MI_FLUSH); |
| 1403 | |
| 1404 | /* ... and execute it. */ |
| 1405 | intel_ring_emit(ring, MI_BATCH_BUFFER); |
| 1406 | intel_ring_emit(ring, cs_offset | (flags & I915_DISPATCH_SECURE ? 0 : MI_BATCH_NON_SECURE)); |
| 1407 | intel_ring_emit(ring, cs_offset + len - 8); |
| 1408 | intel_ring_advance(ring); |
| 1409 | } |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1410 | |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 1411 | return 0; |
| 1412 | } |
| 1413 | |
| 1414 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1415 | i915_dispatch_execbuffer(struct intel_engine_cs *ring, |
Ben Widawsky | 9bcb144 | 2014-04-28 19:29:25 -0700 | [diff] [blame] | 1416 | u64 offset, u32 len, |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 1417 | unsigned flags) |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 1418 | { |
| 1419 | int ret; |
| 1420 | |
| 1421 | ret = intel_ring_begin(ring, 2); |
| 1422 | if (ret) |
| 1423 | return ret; |
| 1424 | |
Chris Wilson | 65f5687 | 2012-04-17 16:38:12 +0100 | [diff] [blame] | 1425 | intel_ring_emit(ring, MI_BATCH_BUFFER_START | MI_BATCH_GTT); |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 1426 | intel_ring_emit(ring, offset | (flags & I915_DISPATCH_SECURE ? 0 : MI_BATCH_NON_SECURE)); |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 1427 | intel_ring_advance(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1428 | |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1429 | return 0; |
| 1430 | } |
| 1431 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1432 | static void cleanup_status_page(struct intel_engine_cs *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1433 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1434 | struct drm_i915_gem_object *obj; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1435 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1436 | obj = ring->status_page.obj; |
| 1437 | if (obj == NULL) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1438 | return; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1439 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 1440 | kunmap(sg_page(obj->pages->sgl)); |
Ben Widawsky | d7f46fc | 2013-12-06 14:10:55 -0800 | [diff] [blame] | 1441 | i915_gem_object_ggtt_unpin(obj); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1442 | drm_gem_object_unreference(&obj->base); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1443 | ring->status_page.obj = NULL; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1444 | } |
| 1445 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1446 | static int init_status_page(struct intel_engine_cs *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1447 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1448 | struct drm_i915_gem_object *obj; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1449 | |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1450 | if ((obj = ring->status_page.obj) == NULL) { |
Chris Wilson | 1f767e0 | 2014-07-03 17:33:03 -0400 | [diff] [blame] | 1451 | unsigned flags; |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1452 | int ret; |
| 1453 | |
| 1454 | obj = i915_gem_alloc_object(ring->dev, 4096); |
| 1455 | if (obj == NULL) { |
| 1456 | DRM_ERROR("Failed to allocate status page\n"); |
| 1457 | return -ENOMEM; |
| 1458 | } |
| 1459 | |
| 1460 | ret = i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); |
| 1461 | if (ret) |
| 1462 | goto err_unref; |
| 1463 | |
Chris Wilson | 1f767e0 | 2014-07-03 17:33:03 -0400 | [diff] [blame] | 1464 | flags = 0; |
| 1465 | if (!HAS_LLC(ring->dev)) |
| 1466 | /* On g33, we cannot place HWS above 256MiB, so |
| 1467 | * restrict its pinning to the low mappable arena. |
| 1468 | * Though this restriction is not documented for |
| 1469 | * gen4, gen5, or byt, they also behave similarly |
| 1470 | * and hang if the HWS is placed at the top of the |
| 1471 | * GTT. To generalise, it appears that all !llc |
| 1472 | * platforms have issues with us placing the HWS |
| 1473 | * above the mappable region (even though we never |
| 1474 | * actualy map it). |
| 1475 | */ |
| 1476 | flags |= PIN_MAPPABLE; |
| 1477 | ret = i915_gem_obj_ggtt_pin(obj, 4096, flags); |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1478 | if (ret) { |
| 1479 | err_unref: |
| 1480 | drm_gem_object_unreference(&obj->base); |
| 1481 | return ret; |
| 1482 | } |
| 1483 | |
| 1484 | ring->status_page.obj = obj; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1485 | } |
Chris Wilson | e4ffd17 | 2011-04-04 09:44:39 +0100 | [diff] [blame] | 1486 | |
Ben Widawsky | f343c5f | 2013-07-05 14:41:04 -0700 | [diff] [blame] | 1487 | ring->status_page.gfx_addr = i915_gem_obj_ggtt_offset(obj); |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 1488 | ring->status_page.page_addr = kmap(sg_page(obj->pages->sgl)); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1489 | memset(ring->status_page.page_addr, 0, PAGE_SIZE); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1490 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1491 | DRM_DEBUG_DRIVER("%s hws offset: 0x%08x\n", |
| 1492 | ring->name, ring->status_page.gfx_addr); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1493 | |
| 1494 | return 0; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1495 | } |
| 1496 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1497 | static int init_phys_status_page(struct intel_engine_cs *ring) |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 1498 | { |
| 1499 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 1500 | |
| 1501 | if (!dev_priv->status_page_dmah) { |
| 1502 | dev_priv->status_page_dmah = |
| 1503 | drm_pci_alloc(ring->dev, PAGE_SIZE, PAGE_SIZE); |
| 1504 | if (!dev_priv->status_page_dmah) |
| 1505 | return -ENOMEM; |
| 1506 | } |
| 1507 | |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 1508 | ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr; |
| 1509 | memset(ring->status_page.page_addr, 0, PAGE_SIZE); |
| 1510 | |
| 1511 | return 0; |
| 1512 | } |
| 1513 | |
Oscar Mateo | 2919d29 | 2014-07-03 16:28:02 +0100 | [diff] [blame] | 1514 | static void intel_destroy_ringbuffer_obj(struct intel_ringbuffer *ringbuf) |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1515 | { |
Oscar Mateo | 2919d29 | 2014-07-03 16:28:02 +0100 | [diff] [blame] | 1516 | if (!ringbuf->obj) |
| 1517 | return; |
| 1518 | |
| 1519 | iounmap(ringbuf->virtual_start); |
| 1520 | i915_gem_object_ggtt_unpin(ringbuf->obj); |
| 1521 | drm_gem_object_unreference(&ringbuf->obj->base); |
| 1522 | ringbuf->obj = NULL; |
| 1523 | } |
| 1524 | |
| 1525 | static int intel_alloc_ringbuffer_obj(struct drm_device *dev, |
| 1526 | struct intel_ringbuffer *ringbuf) |
| 1527 | { |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1528 | struct drm_i915_private *dev_priv = to_i915(dev); |
| 1529 | struct drm_i915_gem_object *obj; |
| 1530 | int ret; |
| 1531 | |
Oscar Mateo | 2919d29 | 2014-07-03 16:28:02 +0100 | [diff] [blame] | 1532 | if (ringbuf->obj) |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1533 | return 0; |
| 1534 | |
| 1535 | obj = NULL; |
| 1536 | if (!HAS_LLC(dev)) |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1537 | obj = i915_gem_object_create_stolen(dev, ringbuf->size); |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1538 | if (obj == NULL) |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1539 | obj = i915_gem_alloc_object(dev, ringbuf->size); |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1540 | if (obj == NULL) |
| 1541 | return -ENOMEM; |
| 1542 | |
Akash Goel | 24f3a8c | 2014-06-17 10:59:42 +0530 | [diff] [blame] | 1543 | /* mark ring buffers as read-only from GPU side by default */ |
| 1544 | obj->gt_ro = 1; |
| 1545 | |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1546 | ret = i915_gem_obj_ggtt_pin(obj, PAGE_SIZE, PIN_MAPPABLE); |
| 1547 | if (ret) |
| 1548 | goto err_unref; |
| 1549 | |
| 1550 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
| 1551 | if (ret) |
| 1552 | goto err_unpin; |
| 1553 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1554 | ringbuf->virtual_start = |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1555 | ioremap_wc(dev_priv->gtt.mappable_base + i915_gem_obj_ggtt_offset(obj), |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1556 | ringbuf->size); |
| 1557 | if (ringbuf->virtual_start == NULL) { |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1558 | ret = -EINVAL; |
| 1559 | goto err_unpin; |
| 1560 | } |
| 1561 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1562 | ringbuf->obj = obj; |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1563 | return 0; |
| 1564 | |
| 1565 | err_unpin: |
| 1566 | i915_gem_object_ggtt_unpin(obj); |
| 1567 | err_unref: |
| 1568 | drm_gem_object_unreference(&obj->base); |
| 1569 | return ret; |
| 1570 | } |
| 1571 | |
Ben Widawsky | c43b563 | 2012-04-16 14:07:40 -0700 | [diff] [blame] | 1572 | static int intel_init_ring_buffer(struct drm_device *dev, |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1573 | struct intel_engine_cs *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1574 | { |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1575 | struct intel_ringbuffer *ringbuf = ring->buffer; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1576 | int ret; |
| 1577 | |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1578 | if (ringbuf == NULL) { |
| 1579 | ringbuf = kzalloc(sizeof(*ringbuf), GFP_KERNEL); |
| 1580 | if (!ringbuf) |
| 1581 | return -ENOMEM; |
| 1582 | ring->buffer = ringbuf; |
| 1583 | } |
| 1584 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1585 | ring->dev = dev; |
Chris Wilson | 23bc598 | 2010-09-29 16:10:57 +0100 | [diff] [blame] | 1586 | INIT_LIST_HEAD(&ring->active_list); |
| 1587 | INIT_LIST_HEAD(&ring->request_list); |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1588 | ringbuf->size = 32 * PAGE_SIZE; |
Ben Widawsky | ebc348b | 2014-04-29 14:52:28 -0700 | [diff] [blame] | 1589 | memset(ring->semaphore.sync_seqno, 0, sizeof(ring->semaphore.sync_seqno)); |
Chris Wilson | 0dc79fb | 2011-01-05 10:32:24 +0000 | [diff] [blame] | 1590 | |
Chris Wilson | b259f67 | 2011-03-29 13:19:09 +0100 | [diff] [blame] | 1591 | init_waitqueue_head(&ring->irq_queue); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1592 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1593 | if (I915_NEED_GFX_HWS(dev)) { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1594 | ret = init_status_page(ring); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1595 | if (ret) |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1596 | goto error; |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 1597 | } else { |
| 1598 | BUG_ON(ring->id != RCS); |
Daniel Vetter | 035dc1e | 2013-07-03 12:56:54 +0200 | [diff] [blame] | 1599 | ret = init_phys_status_page(ring); |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 1600 | if (ret) |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1601 | goto error; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1602 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1603 | |
Oscar Mateo | 2919d29 | 2014-07-03 16:28:02 +0100 | [diff] [blame] | 1604 | ret = intel_alloc_ringbuffer_obj(dev, ringbuf); |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1605 | if (ret) { |
| 1606 | DRM_ERROR("Failed to allocate ringbuffer %s: %d\n", ring->name, ret); |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1607 | goto error; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1608 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1609 | |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1610 | /* Workaround an erratum on the i830 which causes a hang if |
| 1611 | * the TAIL pointer points to within the last 2 cachelines |
| 1612 | * of the buffer. |
| 1613 | */ |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1614 | ringbuf->effective_size = ringbuf->size; |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1615 | if (IS_I830(dev) || IS_845G(dev)) |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1616 | ringbuf->effective_size -= 2 * CACHELINE_BYTES; |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1617 | |
Brad Volkin | 44e895a | 2014-05-10 14:10:43 -0700 | [diff] [blame] | 1618 | ret = i915_cmd_parser_init_ring(ring); |
| 1619 | if (ret) |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1620 | goto error; |
Brad Volkin | 351e3db | 2014-02-18 10:15:46 -0800 | [diff] [blame] | 1621 | |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1622 | ret = ring->init(ring); |
| 1623 | if (ret) |
| 1624 | goto error; |
| 1625 | |
| 1626 | return 0; |
| 1627 | |
| 1628 | error: |
| 1629 | kfree(ringbuf); |
| 1630 | ring->buffer = NULL; |
| 1631 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1632 | } |
| 1633 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1634 | void intel_cleanup_ring_buffer(struct intel_engine_cs *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1635 | { |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1636 | struct drm_i915_private *dev_priv = to_i915(ring->dev); |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1637 | struct intel_ringbuffer *ringbuf = ring->buffer; |
Chris Wilson | 33626e6 | 2010-10-29 16:18:36 +0100 | [diff] [blame] | 1638 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1639 | if (!intel_ring_initialized(ring)) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1640 | return; |
| 1641 | |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 1642 | intel_stop_ring_buffer(ring); |
Ville Syrjälä | de8f0a5 | 2014-05-28 19:12:13 +0300 | [diff] [blame] | 1643 | WARN_ON(!IS_GEN2(ring->dev) && (I915_READ_MODE(ring) & MODE_IDLE) == 0); |
Chris Wilson | 33626e6 | 2010-10-29 16:18:36 +0100 | [diff] [blame] | 1644 | |
Oscar Mateo | 2919d29 | 2014-07-03 16:28:02 +0100 | [diff] [blame] | 1645 | intel_destroy_ringbuffer_obj(ringbuf); |
Ben Widawsky | 3d57e5b | 2013-10-14 10:01:36 -0700 | [diff] [blame] | 1646 | ring->preallocated_lazy_request = NULL; |
| 1647 | ring->outstanding_lazy_seqno = 0; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1648 | |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 1649 | if (ring->cleanup) |
| 1650 | ring->cleanup(ring); |
| 1651 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1652 | cleanup_status_page(ring); |
Brad Volkin | 44e895a | 2014-05-10 14:10:43 -0700 | [diff] [blame] | 1653 | |
| 1654 | i915_cmd_parser_fini_ring(ring); |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1655 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1656 | kfree(ringbuf); |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 1657 | ring->buffer = NULL; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1658 | } |
| 1659 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1660 | static int intel_ring_wait_request(struct intel_engine_cs *ring, int n) |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1661 | { |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1662 | struct intel_ringbuffer *ringbuf = ring->buffer; |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1663 | struct drm_i915_gem_request *request; |
Chris Wilson | 1cf0ba1 | 2014-05-05 09:07:33 +0100 | [diff] [blame] | 1664 | u32 seqno = 0; |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1665 | int ret; |
| 1666 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1667 | if (ringbuf->last_retired_head != -1) { |
| 1668 | ringbuf->head = ringbuf->last_retired_head; |
| 1669 | ringbuf->last_retired_head = -1; |
Chris Wilson | 1f70999 | 2014-01-27 22:43:07 +0000 | [diff] [blame] | 1670 | |
Oscar Mateo | 64c58f2 | 2014-07-03 16:28:03 +0100 | [diff] [blame] | 1671 | ringbuf->space = ring_space(ringbuf); |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1672 | if (ringbuf->space >= n) |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1673 | return 0; |
| 1674 | } |
| 1675 | |
| 1676 | list_for_each_entry(request, &ring->request_list, list) { |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1677 | if (__ring_space(request->tail, ringbuf->tail, ringbuf->size) >= n) { |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1678 | seqno = request->seqno; |
| 1679 | break; |
| 1680 | } |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1681 | } |
| 1682 | |
| 1683 | if (seqno == 0) |
| 1684 | return -ENOSPC; |
| 1685 | |
Chris Wilson | 1f70999 | 2014-01-27 22:43:07 +0000 | [diff] [blame] | 1686 | ret = i915_wait_seqno(ring, seqno); |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1687 | if (ret) |
| 1688 | return ret; |
| 1689 | |
Chris Wilson | 1cf0ba1 | 2014-05-05 09:07:33 +0100 | [diff] [blame] | 1690 | i915_gem_retire_requests_ring(ring); |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1691 | ringbuf->head = ringbuf->last_retired_head; |
| 1692 | ringbuf->last_retired_head = -1; |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1693 | |
Oscar Mateo | 64c58f2 | 2014-07-03 16:28:03 +0100 | [diff] [blame] | 1694 | ringbuf->space = ring_space(ringbuf); |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1695 | return 0; |
| 1696 | } |
| 1697 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1698 | static int ring_wait_for_space(struct intel_engine_cs *ring, int n) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1699 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1700 | struct drm_device *dev = ring->dev; |
Zou Nan hai | cae5852 | 2010-11-09 17:17:32 +0800 | [diff] [blame] | 1701 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1702 | struct intel_ringbuffer *ringbuf = ring->buffer; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1703 | unsigned long end; |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1704 | int ret; |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 1705 | |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1706 | ret = intel_ring_wait_request(ring, n); |
| 1707 | if (ret != -ENOSPC) |
| 1708 | return ret; |
| 1709 | |
Chris Wilson | 0924673 | 2013-08-10 22:16:32 +0100 | [diff] [blame] | 1710 | /* force the tail write in case we have been skipping them */ |
| 1711 | __intel_ring_advance(ring); |
| 1712 | |
Daniel Vetter | 63ed2cb | 2012-04-23 16:50:50 +0200 | [diff] [blame] | 1713 | /* With GEM the hangcheck timer should kick us out of the loop, |
| 1714 | * leaving it early runs the risk of corrupting GEM state (due |
| 1715 | * to running on almost untested codepaths). But on resume |
| 1716 | * timers don't work yet, so prevent a complete hang in that |
| 1717 | * case by choosing an insanely large timeout. */ |
| 1718 | end = jiffies + 60 * HZ; |
Daniel Vetter | e6bfaf8 | 2011-12-14 13:56:59 +0100 | [diff] [blame] | 1719 | |
Chris Wilson | dcfe050 | 2014-05-05 09:07:32 +0100 | [diff] [blame] | 1720 | trace_i915_ring_wait_begin(ring); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1721 | do { |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1722 | ringbuf->head = I915_READ_HEAD(ring); |
Oscar Mateo | 64c58f2 | 2014-07-03 16:28:03 +0100 | [diff] [blame] | 1723 | ringbuf->space = ring_space(ringbuf); |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1724 | if (ringbuf->space >= n) { |
Chris Wilson | dcfe050 | 2014-05-05 09:07:32 +0100 | [diff] [blame] | 1725 | ret = 0; |
| 1726 | break; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1727 | } |
| 1728 | |
Daniel Vetter | fb19e2a | 2014-02-12 23:44:34 +0100 | [diff] [blame] | 1729 | if (!drm_core_check_feature(dev, DRIVER_MODESET) && |
| 1730 | dev->primary->master) { |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1731 | struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv; |
| 1732 | if (master_priv->sarea_priv) |
| 1733 | master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT; |
| 1734 | } |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1735 | |
Chris Wilson | e60a0b1 | 2010-10-13 10:09:14 +0100 | [diff] [blame] | 1736 | msleep(1); |
Daniel Vetter | d6b2c79 | 2012-07-04 22:54:13 +0200 | [diff] [blame] | 1737 | |
Chris Wilson | dcfe050 | 2014-05-05 09:07:32 +0100 | [diff] [blame] | 1738 | if (dev_priv->mm.interruptible && signal_pending(current)) { |
| 1739 | ret = -ERESTARTSYS; |
| 1740 | break; |
| 1741 | } |
| 1742 | |
Daniel Vetter | 33196de | 2012-11-14 17:14:05 +0100 | [diff] [blame] | 1743 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, |
| 1744 | dev_priv->mm.interruptible); |
Daniel Vetter | d6b2c79 | 2012-07-04 22:54:13 +0200 | [diff] [blame] | 1745 | if (ret) |
Chris Wilson | dcfe050 | 2014-05-05 09:07:32 +0100 | [diff] [blame] | 1746 | break; |
| 1747 | |
| 1748 | if (time_after(jiffies, end)) { |
| 1749 | ret = -EBUSY; |
| 1750 | break; |
| 1751 | } |
| 1752 | } while (1); |
Chris Wilson | db53a30 | 2011-02-03 11:57:46 +0000 | [diff] [blame] | 1753 | trace_i915_ring_wait_end(ring); |
Chris Wilson | dcfe050 | 2014-05-05 09:07:32 +0100 | [diff] [blame] | 1754 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1755 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1756 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1757 | static int intel_wrap_ring_buffer(struct intel_engine_cs *ring) |
Chris Wilson | 3e96050 | 2012-11-27 16:22:54 +0000 | [diff] [blame] | 1758 | { |
| 1759 | uint32_t __iomem *virt; |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1760 | struct intel_ringbuffer *ringbuf = ring->buffer; |
| 1761 | int rem = ringbuf->size - ringbuf->tail; |
Chris Wilson | 3e96050 | 2012-11-27 16:22:54 +0000 | [diff] [blame] | 1762 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1763 | if (ringbuf->space < rem) { |
Chris Wilson | 3e96050 | 2012-11-27 16:22:54 +0000 | [diff] [blame] | 1764 | int ret = ring_wait_for_space(ring, rem); |
| 1765 | if (ret) |
| 1766 | return ret; |
| 1767 | } |
| 1768 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1769 | virt = ringbuf->virtual_start + ringbuf->tail; |
Chris Wilson | 3e96050 | 2012-11-27 16:22:54 +0000 | [diff] [blame] | 1770 | rem /= 4; |
| 1771 | while (rem--) |
| 1772 | iowrite32(MI_NOOP, virt++); |
| 1773 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1774 | ringbuf->tail = 0; |
Oscar Mateo | 64c58f2 | 2014-07-03 16:28:03 +0100 | [diff] [blame] | 1775 | ringbuf->space = ring_space(ringbuf); |
Chris Wilson | 3e96050 | 2012-11-27 16:22:54 +0000 | [diff] [blame] | 1776 | |
| 1777 | return 0; |
| 1778 | } |
| 1779 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1780 | int intel_ring_idle(struct intel_engine_cs *ring) |
Chris Wilson | 3e96050 | 2012-11-27 16:22:54 +0000 | [diff] [blame] | 1781 | { |
| 1782 | u32 seqno; |
| 1783 | int ret; |
| 1784 | |
| 1785 | /* We need to add any requests required to flush the objects and ring */ |
Chris Wilson | 1823521 | 2013-09-04 10:45:51 +0100 | [diff] [blame] | 1786 | if (ring->outstanding_lazy_seqno) { |
Mika Kuoppala | 0025c07 | 2013-06-12 12:35:30 +0300 | [diff] [blame] | 1787 | ret = i915_add_request(ring, NULL); |
Chris Wilson | 3e96050 | 2012-11-27 16:22:54 +0000 | [diff] [blame] | 1788 | if (ret) |
| 1789 | return ret; |
| 1790 | } |
| 1791 | |
| 1792 | /* Wait upon the last request to be completed */ |
| 1793 | if (list_empty(&ring->request_list)) |
| 1794 | return 0; |
| 1795 | |
| 1796 | seqno = list_entry(ring->request_list.prev, |
| 1797 | struct drm_i915_gem_request, |
| 1798 | list)->seqno; |
| 1799 | |
| 1800 | return i915_wait_seqno(ring, seqno); |
| 1801 | } |
| 1802 | |
Chris Wilson | 9d773091 | 2012-11-27 16:22:52 +0000 | [diff] [blame] | 1803 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1804 | intel_ring_alloc_seqno(struct intel_engine_cs *ring) |
Chris Wilson | 9d773091 | 2012-11-27 16:22:52 +0000 | [diff] [blame] | 1805 | { |
Chris Wilson | 1823521 | 2013-09-04 10:45:51 +0100 | [diff] [blame] | 1806 | if (ring->outstanding_lazy_seqno) |
Chris Wilson | 9d773091 | 2012-11-27 16:22:52 +0000 | [diff] [blame] | 1807 | return 0; |
| 1808 | |
Chris Wilson | 3c0e234 | 2013-09-04 10:45:52 +0100 | [diff] [blame] | 1809 | if (ring->preallocated_lazy_request == NULL) { |
| 1810 | struct drm_i915_gem_request *request; |
| 1811 | |
| 1812 | request = kmalloc(sizeof(*request), GFP_KERNEL); |
| 1813 | if (request == NULL) |
| 1814 | return -ENOMEM; |
| 1815 | |
| 1816 | ring->preallocated_lazy_request = request; |
| 1817 | } |
| 1818 | |
Chris Wilson | 1823521 | 2013-09-04 10:45:51 +0100 | [diff] [blame] | 1819 | return i915_gem_get_seqno(ring->dev, &ring->outstanding_lazy_seqno); |
Chris Wilson | 9d773091 | 2012-11-27 16:22:52 +0000 | [diff] [blame] | 1820 | } |
| 1821 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1822 | static int __intel_ring_prepare(struct intel_engine_cs *ring, |
Chris Wilson | 304d695 | 2014-01-02 14:32:35 +0000 | [diff] [blame] | 1823 | int bytes) |
Mika Kuoppala | cbcc80d | 2012-12-04 15:12:03 +0200 | [diff] [blame] | 1824 | { |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1825 | struct intel_ringbuffer *ringbuf = ring->buffer; |
Mika Kuoppala | cbcc80d | 2012-12-04 15:12:03 +0200 | [diff] [blame] | 1826 | int ret; |
| 1827 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1828 | if (unlikely(ringbuf->tail + bytes > ringbuf->effective_size)) { |
Mika Kuoppala | cbcc80d | 2012-12-04 15:12:03 +0200 | [diff] [blame] | 1829 | ret = intel_wrap_ring_buffer(ring); |
| 1830 | if (unlikely(ret)) |
| 1831 | return ret; |
| 1832 | } |
| 1833 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 1834 | if (unlikely(ringbuf->space < bytes)) { |
Mika Kuoppala | cbcc80d | 2012-12-04 15:12:03 +0200 | [diff] [blame] | 1835 | ret = ring_wait_for_space(ring, bytes); |
| 1836 | if (unlikely(ret)) |
| 1837 | return ret; |
| 1838 | } |
| 1839 | |
Mika Kuoppala | cbcc80d | 2012-12-04 15:12:03 +0200 | [diff] [blame] | 1840 | return 0; |
| 1841 | } |
| 1842 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1843 | int intel_ring_begin(struct intel_engine_cs *ring, |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1844 | int num_dwords) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1845 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1846 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1847 | int ret; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1848 | |
Daniel Vetter | 33196de | 2012-11-14 17:14:05 +0100 | [diff] [blame] | 1849 | ret = i915_gem_check_wedge(&dev_priv->gpu_error, |
| 1850 | dev_priv->mm.interruptible); |
Daniel Vetter | de2b998 | 2012-07-04 22:52:50 +0200 | [diff] [blame] | 1851 | if (ret) |
| 1852 | return ret; |
Chris Wilson | 21dd373 | 2011-01-26 15:55:56 +0000 | [diff] [blame] | 1853 | |
Chris Wilson | 304d695 | 2014-01-02 14:32:35 +0000 | [diff] [blame] | 1854 | ret = __intel_ring_prepare(ring, num_dwords * sizeof(uint32_t)); |
| 1855 | if (ret) |
| 1856 | return ret; |
| 1857 | |
Chris Wilson | 9d773091 | 2012-11-27 16:22:52 +0000 | [diff] [blame] | 1858 | /* Preallocate the olr before touching the ring */ |
| 1859 | ret = intel_ring_alloc_seqno(ring); |
| 1860 | if (ret) |
| 1861 | return ret; |
| 1862 | |
Oscar Mateo | ee1b1e5 | 2014-05-22 14:13:35 +0100 | [diff] [blame] | 1863 | ring->buffer->space -= num_dwords * sizeof(uint32_t); |
Chris Wilson | 304d695 | 2014-01-02 14:32:35 +0000 | [diff] [blame] | 1864 | return 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1865 | } |
| 1866 | |
Ville Syrjälä | 753b1ad | 2014-02-11 19:52:05 +0200 | [diff] [blame] | 1867 | /* Align the ring tail to a cacheline boundary */ |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1868 | int intel_ring_cacheline_align(struct intel_engine_cs *ring) |
Ville Syrjälä | 753b1ad | 2014-02-11 19:52:05 +0200 | [diff] [blame] | 1869 | { |
Oscar Mateo | ee1b1e5 | 2014-05-22 14:13:35 +0100 | [diff] [blame] | 1870 | int num_dwords = (ring->buffer->tail & (CACHELINE_BYTES - 1)) / sizeof(uint32_t); |
Ville Syrjälä | 753b1ad | 2014-02-11 19:52:05 +0200 | [diff] [blame] | 1871 | int ret; |
| 1872 | |
| 1873 | if (num_dwords == 0) |
| 1874 | return 0; |
| 1875 | |
Chris Wilson | 18393f6 | 2014-04-09 09:19:40 +0100 | [diff] [blame] | 1876 | num_dwords = CACHELINE_BYTES / sizeof(uint32_t) - num_dwords; |
Ville Syrjälä | 753b1ad | 2014-02-11 19:52:05 +0200 | [diff] [blame] | 1877 | ret = intel_ring_begin(ring, num_dwords); |
| 1878 | if (ret) |
| 1879 | return ret; |
| 1880 | |
| 1881 | while (num_dwords--) |
| 1882 | intel_ring_emit(ring, MI_NOOP); |
| 1883 | |
| 1884 | intel_ring_advance(ring); |
| 1885 | |
| 1886 | return 0; |
| 1887 | } |
| 1888 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1889 | void intel_ring_init_seqno(struct intel_engine_cs *ring, u32 seqno) |
Mika Kuoppala | 498d2ac | 2012-12-04 15:12:04 +0200 | [diff] [blame] | 1890 | { |
Oscar Mateo | 3b2cc8a | 2014-06-11 16:17:16 +0100 | [diff] [blame] | 1891 | struct drm_device *dev = ring->dev; |
| 1892 | struct drm_i915_private *dev_priv = dev->dev_private; |
Mika Kuoppala | 498d2ac | 2012-12-04 15:12:04 +0200 | [diff] [blame] | 1893 | |
Chris Wilson | 1823521 | 2013-09-04 10:45:51 +0100 | [diff] [blame] | 1894 | BUG_ON(ring->outstanding_lazy_seqno); |
Mika Kuoppala | 498d2ac | 2012-12-04 15:12:04 +0200 | [diff] [blame] | 1895 | |
Oscar Mateo | 3b2cc8a | 2014-06-11 16:17:16 +0100 | [diff] [blame] | 1896 | if (INTEL_INFO(dev)->gen == 6 || INTEL_INFO(dev)->gen == 7) { |
Mika Kuoppala | f7e98ad | 2012-12-19 11:13:06 +0200 | [diff] [blame] | 1897 | I915_WRITE(RING_SYNC_0(ring->mmio_base), 0); |
| 1898 | I915_WRITE(RING_SYNC_1(ring->mmio_base), 0); |
Oscar Mateo | 3b2cc8a | 2014-06-11 16:17:16 +0100 | [diff] [blame] | 1899 | if (HAS_VEBOX(dev)) |
Ben Widawsky | 5020150 | 2013-08-12 16:53:03 -0700 | [diff] [blame] | 1900 | I915_WRITE(RING_SYNC_2(ring->mmio_base), 0); |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1901 | } |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 1902 | |
Mika Kuoppala | f7e98ad | 2012-12-19 11:13:06 +0200 | [diff] [blame] | 1903 | ring->set_seqno(ring, seqno); |
Mika Kuoppala | 92cab73 | 2013-05-24 17:16:07 +0300 | [diff] [blame] | 1904 | ring->hangcheck.seqno = seqno; |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1905 | } |
| 1906 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1907 | static void gen6_bsd_ring_write_tail(struct intel_engine_cs *ring, |
Chris Wilson | ab6f8e3 | 2010-09-19 17:53:44 +0100 | [diff] [blame] | 1908 | u32 value) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1909 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 1910 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1911 | |
| 1912 | /* Every tail move must follow the sequence below */ |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1913 | |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1914 | /* Disable notification that the ring is IDLE. The GT |
| 1915 | * will then assume that it is busy and bring it out of rc6. |
| 1916 | */ |
| 1917 | I915_WRITE(GEN6_BSD_SLEEP_PSMI_CONTROL, |
| 1918 | _MASKED_BIT_ENABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); |
| 1919 | |
| 1920 | /* Clear the context id. Here be magic! */ |
| 1921 | I915_WRITE64(GEN6_BSD_RNCID, 0x0); |
| 1922 | |
| 1923 | /* Wait for the ring not to be idle, i.e. for it to wake up. */ |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1924 | if (wait_for((I915_READ(GEN6_BSD_SLEEP_PSMI_CONTROL) & |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1925 | GEN6_BSD_SLEEP_INDICATOR) == 0, |
| 1926 | 50)) |
| 1927 | DRM_ERROR("timed out waiting for the BSD ring to wake up\n"); |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1928 | |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1929 | /* Now that the ring is fully powered up, update the tail */ |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1930 | I915_WRITE_TAIL(ring, value); |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1931 | POSTING_READ(RING_TAIL(ring->mmio_base)); |
| 1932 | |
| 1933 | /* Let the ring send IDLE messages to the GT again, |
| 1934 | * and so let it sleep to conserve power when idle. |
| 1935 | */ |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1936 | I915_WRITE(GEN6_BSD_SLEEP_PSMI_CONTROL, |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1937 | _MASKED_BIT_DISABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1938 | } |
| 1939 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1940 | static int gen6_bsd_ring_flush(struct intel_engine_cs *ring, |
Ben Widawsky | ea25132 | 2013-05-28 19:22:21 -0700 | [diff] [blame] | 1941 | u32 invalidate, u32 flush) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1942 | { |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1943 | uint32_t cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1944 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1945 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1946 | ret = intel_ring_begin(ring, 4); |
| 1947 | if (ret) |
| 1948 | return ret; |
| 1949 | |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1950 | cmd = MI_FLUSH_DW; |
Ben Widawsky | 075b3bb | 2013-11-02 21:07:13 -0700 | [diff] [blame] | 1951 | if (INTEL_INFO(ring->dev)->gen >= 8) |
| 1952 | cmd += 1; |
Jesse Barnes | 9a28977 | 2012-10-26 09:42:42 -0700 | [diff] [blame] | 1953 | /* |
| 1954 | * Bspec vol 1c.5 - video engine command streamer: |
| 1955 | * "If ENABLED, all TLBs will be invalidated once the flush |
| 1956 | * operation is complete. This bit is only valid when the |
| 1957 | * Post-Sync Operation field is a value of 1h or 3h." |
| 1958 | */ |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1959 | if (invalidate & I915_GEM_GPU_DOMAINS) |
Jesse Barnes | 9a28977 | 2012-10-26 09:42:42 -0700 | [diff] [blame] | 1960 | cmd |= MI_INVALIDATE_TLB | MI_INVALIDATE_BSD | |
| 1961 | MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW; |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1962 | intel_ring_emit(ring, cmd); |
Jesse Barnes | 9a28977 | 2012-10-26 09:42:42 -0700 | [diff] [blame] | 1963 | intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); |
Ben Widawsky | 075b3bb | 2013-11-02 21:07:13 -0700 | [diff] [blame] | 1964 | if (INTEL_INFO(ring->dev)->gen >= 8) { |
| 1965 | intel_ring_emit(ring, 0); /* upper addr */ |
| 1966 | intel_ring_emit(ring, 0); /* value */ |
| 1967 | } else { |
| 1968 | intel_ring_emit(ring, 0); |
| 1969 | intel_ring_emit(ring, MI_NOOP); |
| 1970 | } |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1971 | intel_ring_advance(ring); |
| 1972 | return 0; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1973 | } |
| 1974 | |
| 1975 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 1976 | gen8_ring_dispatch_execbuffer(struct intel_engine_cs *ring, |
Ben Widawsky | 9bcb144 | 2014-04-28 19:29:25 -0700 | [diff] [blame] | 1977 | u64 offset, u32 len, |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 1978 | unsigned flags) |
| 1979 | { |
Ben Widawsky | 28cf541 | 2013-11-02 21:07:26 -0700 | [diff] [blame] | 1980 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
| 1981 | bool ppgtt = dev_priv->mm.aliasing_ppgtt != NULL && |
| 1982 | !(flags & I915_DISPATCH_SECURE); |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 1983 | int ret; |
| 1984 | |
| 1985 | ret = intel_ring_begin(ring, 4); |
| 1986 | if (ret) |
| 1987 | return ret; |
| 1988 | |
| 1989 | /* FIXME(BDW): Address space and security selectors. */ |
Ben Widawsky | 28cf541 | 2013-11-02 21:07:26 -0700 | [diff] [blame] | 1990 | intel_ring_emit(ring, MI_BATCH_BUFFER_START_GEN8 | (ppgtt<<8)); |
Ben Widawsky | 9bcb144 | 2014-04-28 19:29:25 -0700 | [diff] [blame] | 1991 | intel_ring_emit(ring, lower_32_bits(offset)); |
| 1992 | intel_ring_emit(ring, upper_32_bits(offset)); |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 1993 | intel_ring_emit(ring, MI_NOOP); |
| 1994 | intel_ring_advance(ring); |
| 1995 | |
| 1996 | return 0; |
| 1997 | } |
| 1998 | |
| 1999 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2000 | hsw_ring_dispatch_execbuffer(struct intel_engine_cs *ring, |
Ben Widawsky | 9bcb144 | 2014-04-28 19:29:25 -0700 | [diff] [blame] | 2001 | u64 offset, u32 len, |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 2002 | unsigned flags) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 2003 | { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 2004 | int ret; |
Chris Wilson | ab6f8e3 | 2010-09-19 17:53:44 +0100 | [diff] [blame] | 2005 | |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 2006 | ret = intel_ring_begin(ring, 2); |
| 2007 | if (ret) |
| 2008 | return ret; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 2009 | |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 2010 | intel_ring_emit(ring, |
| 2011 | MI_BATCH_BUFFER_START | MI_BATCH_PPGTT_HSW | |
| 2012 | (flags & I915_DISPATCH_SECURE ? 0 : MI_BATCH_NON_SECURE_HSW)); |
| 2013 | /* bit0-7 is the length on GEN6+ */ |
| 2014 | intel_ring_emit(ring, offset); |
| 2015 | intel_ring_advance(ring); |
| 2016 | |
| 2017 | return 0; |
| 2018 | } |
| 2019 | |
| 2020 | static int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2021 | gen6_ring_dispatch_execbuffer(struct intel_engine_cs *ring, |
Ben Widawsky | 9bcb144 | 2014-04-28 19:29:25 -0700 | [diff] [blame] | 2022 | u64 offset, u32 len, |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 2023 | unsigned flags) |
| 2024 | { |
| 2025 | int ret; |
| 2026 | |
| 2027 | ret = intel_ring_begin(ring, 2); |
| 2028 | if (ret) |
| 2029 | return ret; |
| 2030 | |
| 2031 | intel_ring_emit(ring, |
| 2032 | MI_BATCH_BUFFER_START | |
| 2033 | (flags & I915_DISPATCH_SECURE ? 0 : MI_BATCH_NON_SECURE_I965)); |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 2034 | /* bit0-7 is the length on GEN6+ */ |
| 2035 | intel_ring_emit(ring, offset); |
| 2036 | intel_ring_advance(ring); |
Chris Wilson | ab6f8e3 | 2010-09-19 17:53:44 +0100 | [diff] [blame] | 2037 | |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 2038 | return 0; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 2039 | } |
| 2040 | |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 2041 | /* Blitter support (SandyBridge+) */ |
| 2042 | |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2043 | static int gen6_ring_flush(struct intel_engine_cs *ring, |
Ben Widawsky | ea25132 | 2013-05-28 19:22:21 -0700 | [diff] [blame] | 2044 | u32 invalidate, u32 flush) |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 2045 | { |
Rodrigo Vivi | fd3da6c | 2013-06-06 16:58:16 -0300 | [diff] [blame] | 2046 | struct drm_device *dev = ring->dev; |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 2047 | uint32_t cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 2048 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2049 | |
Daniel Vetter | 6a233c7 | 2011-12-14 13:57:07 +0100 | [diff] [blame] | 2050 | ret = intel_ring_begin(ring, 4); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 2051 | if (ret) |
| 2052 | return ret; |
| 2053 | |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 2054 | cmd = MI_FLUSH_DW; |
Ben Widawsky | 075b3bb | 2013-11-02 21:07:13 -0700 | [diff] [blame] | 2055 | if (INTEL_INFO(ring->dev)->gen >= 8) |
| 2056 | cmd += 1; |
Jesse Barnes | 9a28977 | 2012-10-26 09:42:42 -0700 | [diff] [blame] | 2057 | /* |
| 2058 | * Bspec vol 1c.3 - blitter engine command streamer: |
| 2059 | * "If ENABLED, all TLBs will be invalidated once the flush |
| 2060 | * operation is complete. This bit is only valid when the |
| 2061 | * Post-Sync Operation field is a value of 1h or 3h." |
| 2062 | */ |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 2063 | if (invalidate & I915_GEM_DOMAIN_RENDER) |
Jesse Barnes | 9a28977 | 2012-10-26 09:42:42 -0700 | [diff] [blame] | 2064 | cmd |= MI_INVALIDATE_TLB | MI_FLUSH_DW_STORE_INDEX | |
Daniel Vetter | b3fcabb | 2012-11-04 12:24:47 +0100 | [diff] [blame] | 2065 | MI_FLUSH_DW_OP_STOREDW; |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 2066 | intel_ring_emit(ring, cmd); |
Jesse Barnes | 9a28977 | 2012-10-26 09:42:42 -0700 | [diff] [blame] | 2067 | intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); |
Ben Widawsky | 075b3bb | 2013-11-02 21:07:13 -0700 | [diff] [blame] | 2068 | if (INTEL_INFO(ring->dev)->gen >= 8) { |
| 2069 | intel_ring_emit(ring, 0); /* upper addr */ |
| 2070 | intel_ring_emit(ring, 0); /* value */ |
| 2071 | } else { |
| 2072 | intel_ring_emit(ring, 0); |
| 2073 | intel_ring_emit(ring, MI_NOOP); |
| 2074 | } |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 2075 | intel_ring_advance(ring); |
Rodrigo Vivi | fd3da6c | 2013-06-06 16:58:16 -0300 | [diff] [blame] | 2076 | |
Ville Syrjälä | 9688eca | 2013-11-06 23:02:19 +0200 | [diff] [blame] | 2077 | if (IS_GEN7(dev) && !invalidate && flush) |
Rodrigo Vivi | fd3da6c | 2013-06-06 16:58:16 -0300 | [diff] [blame] | 2078 | return gen7_ring_fbc_flush(ring, FBC_REND_CACHE_CLEAN); |
| 2079 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 2080 | return 0; |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 2081 | } |
| 2082 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 2083 | int intel_init_render_ring_buffer(struct drm_device *dev) |
| 2084 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 2085 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2086 | struct intel_engine_cs *ring = &dev_priv->ring[RCS]; |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2087 | struct drm_i915_gem_object *obj; |
| 2088 | int ret; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 2089 | |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 2090 | ring->name = "render ring"; |
| 2091 | ring->id = RCS; |
| 2092 | ring->mmio_base = RENDER_RING_BASE; |
| 2093 | |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2094 | if (INTEL_INFO(dev)->gen >= 8) { |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2095 | if (i915_semaphore_is_enabled(dev)) { |
| 2096 | obj = i915_gem_alloc_object(dev, 4096); |
| 2097 | if (obj == NULL) { |
| 2098 | DRM_ERROR("Failed to allocate semaphore bo. Disabling semaphores\n"); |
| 2099 | i915.semaphores = 0; |
| 2100 | } else { |
| 2101 | i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); |
| 2102 | ret = i915_gem_obj_ggtt_pin(obj, 0, PIN_NONBLOCK); |
| 2103 | if (ret != 0) { |
| 2104 | drm_gem_object_unreference(&obj->base); |
| 2105 | DRM_ERROR("Failed to pin semaphore bo. Disabling semaphores\n"); |
| 2106 | i915.semaphores = 0; |
| 2107 | } else |
| 2108 | dev_priv->semaphore_obj = obj; |
| 2109 | } |
| 2110 | } |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2111 | ring->add_request = gen6_add_request; |
| 2112 | ring->flush = gen8_render_ring_flush; |
| 2113 | ring->irq_get = gen8_ring_get_irq; |
| 2114 | ring->irq_put = gen8_ring_put_irq; |
| 2115 | ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT; |
| 2116 | ring->get_seqno = gen6_ring_get_seqno; |
| 2117 | ring->set_seqno = ring_set_seqno; |
| 2118 | if (i915_semaphore_is_enabled(dev)) { |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2119 | WARN_ON(!dev_priv->semaphore_obj); |
Ben Widawsky | 5ee426c | 2014-06-30 09:53:38 -0700 | [diff] [blame] | 2120 | ring->semaphore.sync_to = gen8_ring_sync; |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2121 | ring->semaphore.signal = gen8_rcs_signal; |
| 2122 | GEN8_RING_SEMAPHORE_INIT; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2123 | } |
| 2124 | } else if (INTEL_INFO(dev)->gen >= 6) { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2125 | ring->add_request = gen6_add_request; |
Paulo Zanoni | 4772eae | 2012-08-17 18:35:41 -0300 | [diff] [blame] | 2126 | ring->flush = gen7_render_ring_flush; |
Chris Wilson | 6c6cf5a | 2012-07-20 18:02:28 +0100 | [diff] [blame] | 2127 | if (INTEL_INFO(dev)->gen == 6) |
Paulo Zanoni | b311150 | 2012-08-17 18:35:42 -0300 | [diff] [blame] | 2128 | ring->flush = gen6_render_ring_flush; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2129 | ring->irq_get = gen6_ring_get_irq; |
| 2130 | ring->irq_put = gen6_ring_put_irq; |
Ben Widawsky | cc609d5 | 2013-05-28 19:22:29 -0700 | [diff] [blame] | 2131 | ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT; |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 2132 | ring->get_seqno = gen6_ring_get_seqno; |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 2133 | ring->set_seqno = ring_set_seqno; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2134 | if (i915_semaphore_is_enabled(dev)) { |
| 2135 | ring->semaphore.sync_to = gen6_ring_sync; |
| 2136 | ring->semaphore.signal = gen6_signal; |
| 2137 | /* |
| 2138 | * The current semaphore is only applied on pre-gen8 |
| 2139 | * platform. And there is no VCS2 ring on the pre-gen8 |
| 2140 | * platform. So the semaphore between RCS and VCS2 is |
| 2141 | * initialized as INVALID. Gen8 will initialize the |
| 2142 | * sema between VCS2 and RCS later. |
| 2143 | */ |
| 2144 | ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_INVALID; |
| 2145 | ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_RV; |
| 2146 | ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_RB; |
| 2147 | ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_RVE; |
| 2148 | ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID; |
| 2149 | ring->semaphore.mbox.signal[RCS] = GEN6_NOSYNC; |
| 2150 | ring->semaphore.mbox.signal[VCS] = GEN6_VRSYNC; |
| 2151 | ring->semaphore.mbox.signal[BCS] = GEN6_BRSYNC; |
| 2152 | ring->semaphore.mbox.signal[VECS] = GEN6_VERSYNC; |
| 2153 | ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC; |
| 2154 | } |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 2155 | } else if (IS_GEN5(dev)) { |
| 2156 | ring->add_request = pc_render_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 2157 | ring->flush = gen4_render_ring_flush; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 2158 | ring->get_seqno = pc_render_get_seqno; |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 2159 | ring->set_seqno = pc_render_set_seqno; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 2160 | ring->irq_get = gen5_ring_get_irq; |
| 2161 | ring->irq_put = gen5_ring_put_irq; |
Ben Widawsky | cc609d5 | 2013-05-28 19:22:29 -0700 | [diff] [blame] | 2162 | ring->irq_enable_mask = GT_RENDER_USER_INTERRUPT | |
| 2163 | GT_RENDER_PIPECTL_NOTIFY_INTERRUPT; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 2164 | } else { |
Daniel Vetter | 8620a3a | 2012-04-11 22:12:57 +0200 | [diff] [blame] | 2165 | ring->add_request = i9xx_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 2166 | if (INTEL_INFO(dev)->gen < 4) |
| 2167 | ring->flush = gen2_render_ring_flush; |
| 2168 | else |
| 2169 | ring->flush = gen4_render_ring_flush; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 2170 | ring->get_seqno = ring_get_seqno; |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 2171 | ring->set_seqno = ring_set_seqno; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2172 | if (IS_GEN2(dev)) { |
| 2173 | ring->irq_get = i8xx_ring_get_irq; |
| 2174 | ring->irq_put = i8xx_ring_put_irq; |
| 2175 | } else { |
| 2176 | ring->irq_get = i9xx_ring_get_irq; |
| 2177 | ring->irq_put = i9xx_ring_put_irq; |
| 2178 | } |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 2179 | ring->irq_enable_mask = I915_USER_INTERRUPT; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 2180 | } |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 2181 | ring->write_tail = ring_write_tail; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2182 | |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 2183 | if (IS_HASWELL(dev)) |
| 2184 | ring->dispatch_execbuffer = hsw_ring_dispatch_execbuffer; |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 2185 | else if (IS_GEN8(dev)) |
| 2186 | ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer; |
Chris Wilson | d7d4eed | 2012-10-17 12:09:54 +0100 | [diff] [blame] | 2187 | else if (INTEL_INFO(dev)->gen >= 6) |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 2188 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
| 2189 | else if (INTEL_INFO(dev)->gen >= 4) |
| 2190 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
| 2191 | else if (IS_I830(dev) || IS_845G(dev)) |
| 2192 | ring->dispatch_execbuffer = i830_dispatch_execbuffer; |
| 2193 | else |
| 2194 | ring->dispatch_execbuffer = i915_dispatch_execbuffer; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 2195 | ring->init = init_render_ring; |
| 2196 | ring->cleanup = render_ring_cleanup; |
| 2197 | |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 2198 | /* Workaround batchbuffer to combat CS tlb bug. */ |
| 2199 | if (HAS_BROKEN_CS_TLB(dev)) { |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 2200 | obj = i915_gem_alloc_object(dev, I830_BATCH_LIMIT); |
| 2201 | if (obj == NULL) { |
| 2202 | DRM_ERROR("Failed to allocate batch bo\n"); |
| 2203 | return -ENOMEM; |
| 2204 | } |
| 2205 | |
Daniel Vetter | be1fa12 | 2014-02-14 14:01:14 +0100 | [diff] [blame] | 2206 | ret = i915_gem_obj_ggtt_pin(obj, 0, 0); |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 2207 | if (ret != 0) { |
| 2208 | drm_gem_object_unreference(&obj->base); |
| 2209 | DRM_ERROR("Failed to ping batch bo\n"); |
| 2210 | return ret; |
| 2211 | } |
| 2212 | |
Chris Wilson | 0d1aaca | 2013-08-26 20:58:11 +0100 | [diff] [blame] | 2213 | ring->scratch.obj = obj; |
| 2214 | ring->scratch.gtt_offset = i915_gem_obj_ggtt_offset(obj); |
Daniel Vetter | b45305f | 2012-12-17 16:21:27 +0100 | [diff] [blame] | 2215 | } |
| 2216 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2217 | return intel_init_ring_buffer(dev, ring); |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 2218 | } |
| 2219 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2220 | int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size) |
| 2221 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 2222 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2223 | struct intel_engine_cs *ring = &dev_priv->ring[RCS]; |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 2224 | struct intel_ringbuffer *ringbuf = ring->buffer; |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 2225 | int ret; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2226 | |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 2227 | if (ringbuf == NULL) { |
| 2228 | ringbuf = kzalloc(sizeof(*ringbuf), GFP_KERNEL); |
| 2229 | if (!ringbuf) |
| 2230 | return -ENOMEM; |
| 2231 | ring->buffer = ringbuf; |
| 2232 | } |
| 2233 | |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 2234 | ring->name = "render ring"; |
| 2235 | ring->id = RCS; |
| 2236 | ring->mmio_base = RENDER_RING_BASE; |
| 2237 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2238 | if (INTEL_INFO(dev)->gen >= 6) { |
Daniel Vetter | b4178f8 | 2012-04-11 22:12:51 +0200 | [diff] [blame] | 2239 | /* non-kms not supported on gen6+ */ |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 2240 | ret = -ENODEV; |
| 2241 | goto err_ringbuf; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2242 | } |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 2243 | |
| 2244 | /* Note: gem is not supported on gen5/ilk without kms (the corresponding |
| 2245 | * gem_init ioctl returns with -ENODEV). Hence we do not need to set up |
| 2246 | * the special gen5 functions. */ |
| 2247 | ring->add_request = i9xx_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 2248 | if (INTEL_INFO(dev)->gen < 4) |
| 2249 | ring->flush = gen2_render_ring_flush; |
| 2250 | else |
| 2251 | ring->flush = gen4_render_ring_flush; |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 2252 | ring->get_seqno = ring_get_seqno; |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 2253 | ring->set_seqno = ring_set_seqno; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 2254 | if (IS_GEN2(dev)) { |
| 2255 | ring->irq_get = i8xx_ring_get_irq; |
| 2256 | ring->irq_put = i8xx_ring_put_irq; |
| 2257 | } else { |
| 2258 | ring->irq_get = i9xx_ring_get_irq; |
| 2259 | ring->irq_put = i9xx_ring_put_irq; |
| 2260 | } |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 2261 | ring->irq_enable_mask = I915_USER_INTERRUPT; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 2262 | ring->write_tail = ring_write_tail; |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 2263 | if (INTEL_INFO(dev)->gen >= 4) |
| 2264 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
| 2265 | else if (IS_I830(dev) || IS_845G(dev)) |
| 2266 | ring->dispatch_execbuffer = i830_dispatch_execbuffer; |
| 2267 | else |
| 2268 | ring->dispatch_execbuffer = i915_dispatch_execbuffer; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 2269 | ring->init = init_render_ring; |
| 2270 | ring->cleanup = render_ring_cleanup; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2271 | |
| 2272 | ring->dev = dev; |
| 2273 | INIT_LIST_HEAD(&ring->active_list); |
| 2274 | INIT_LIST_HEAD(&ring->request_list); |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2275 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 2276 | ringbuf->size = size; |
| 2277 | ringbuf->effective_size = ringbuf->size; |
Mika Kuoppala | 17f10fd | 2012-10-29 16:59:26 +0200 | [diff] [blame] | 2278 | if (IS_I830(ring->dev) || IS_845G(ring->dev)) |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 2279 | ringbuf->effective_size -= 2 * CACHELINE_BYTES; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2280 | |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 2281 | ringbuf->virtual_start = ioremap_wc(start, size); |
| 2282 | if (ringbuf->virtual_start == NULL) { |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2283 | DRM_ERROR("can not ioremap virtual address for" |
| 2284 | " ring buffer\n"); |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 2285 | ret = -ENOMEM; |
| 2286 | goto err_ringbuf; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2287 | } |
| 2288 | |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 2289 | if (!I915_NEED_GFX_HWS(dev)) { |
Daniel Vetter | 035dc1e | 2013-07-03 12:56:54 +0200 | [diff] [blame] | 2290 | ret = init_phys_status_page(ring); |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 2291 | if (ret) |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 2292 | goto err_vstart; |
Chris Wilson | 6b8294a | 2012-11-16 11:43:20 +0000 | [diff] [blame] | 2293 | } |
| 2294 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2295 | return 0; |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 2296 | |
| 2297 | err_vstart: |
Oscar Mateo | 93b0a4e | 2014-05-22 14:13:36 +0100 | [diff] [blame] | 2298 | iounmap(ringbuf->virtual_start); |
Oscar Mateo | 8ee1497 | 2014-05-22 14:13:34 +0100 | [diff] [blame] | 2299 | err_ringbuf: |
| 2300 | kfree(ringbuf); |
| 2301 | ring->buffer = NULL; |
| 2302 | return ret; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 2303 | } |
| 2304 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 2305 | int intel_init_bsd_ring_buffer(struct drm_device *dev) |
| 2306 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 2307 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2308 | struct intel_engine_cs *ring = &dev_priv->ring[VCS]; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 2309 | |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 2310 | ring->name = "bsd ring"; |
| 2311 | ring->id = VCS; |
| 2312 | |
Daniel Vetter | 0fd2c20 | 2012-04-11 22:12:55 +0200 | [diff] [blame] | 2313 | ring->write_tail = ring_write_tail; |
Ben Widawsky | 780f18c | 2013-11-02 21:07:28 -0700 | [diff] [blame] | 2314 | if (INTEL_INFO(dev)->gen >= 6) { |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 2315 | ring->mmio_base = GEN6_BSD_RING_BASE; |
Daniel Vetter | 0fd2c20 | 2012-04-11 22:12:55 +0200 | [diff] [blame] | 2316 | /* gen6 bsd needs a special wa for tail updates */ |
| 2317 | if (IS_GEN6(dev)) |
| 2318 | ring->write_tail = gen6_bsd_ring_write_tail; |
Ben Widawsky | ea25132 | 2013-05-28 19:22:21 -0700 | [diff] [blame] | 2319 | ring->flush = gen6_bsd_ring_flush; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 2320 | ring->add_request = gen6_add_request; |
| 2321 | ring->get_seqno = gen6_ring_get_seqno; |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 2322 | ring->set_seqno = ring_set_seqno; |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2323 | if (INTEL_INFO(dev)->gen >= 8) { |
| 2324 | ring->irq_enable_mask = |
| 2325 | GT_RENDER_USER_INTERRUPT << GEN8_VCS1_IRQ_SHIFT; |
| 2326 | ring->irq_get = gen8_ring_get_irq; |
| 2327 | ring->irq_put = gen8_ring_put_irq; |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 2328 | ring->dispatch_execbuffer = |
| 2329 | gen8_ring_dispatch_execbuffer; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2330 | if (i915_semaphore_is_enabled(dev)) { |
Ben Widawsky | 5ee426c | 2014-06-30 09:53:38 -0700 | [diff] [blame] | 2331 | ring->semaphore.sync_to = gen8_ring_sync; |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2332 | ring->semaphore.signal = gen8_xcs_signal; |
| 2333 | GEN8_RING_SEMAPHORE_INIT; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2334 | } |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2335 | } else { |
| 2336 | ring->irq_enable_mask = GT_BSD_USER_INTERRUPT; |
| 2337 | ring->irq_get = gen6_ring_get_irq; |
| 2338 | ring->irq_put = gen6_ring_put_irq; |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 2339 | ring->dispatch_execbuffer = |
| 2340 | gen6_ring_dispatch_execbuffer; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2341 | if (i915_semaphore_is_enabled(dev)) { |
| 2342 | ring->semaphore.sync_to = gen6_ring_sync; |
| 2343 | ring->semaphore.signal = gen6_signal; |
| 2344 | ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_VR; |
| 2345 | ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_INVALID; |
| 2346 | ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_VB; |
| 2347 | ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_VVE; |
| 2348 | ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID; |
| 2349 | ring->semaphore.mbox.signal[RCS] = GEN6_RVSYNC; |
| 2350 | ring->semaphore.mbox.signal[VCS] = GEN6_NOSYNC; |
| 2351 | ring->semaphore.mbox.signal[BCS] = GEN6_BVSYNC; |
| 2352 | ring->semaphore.mbox.signal[VECS] = GEN6_VEVSYNC; |
| 2353 | ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC; |
| 2354 | } |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2355 | } |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 2356 | } else { |
| 2357 | ring->mmio_base = BSD_RING_BASE; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 2358 | ring->flush = bsd_ring_flush; |
Daniel Vetter | 8620a3a | 2012-04-11 22:12:57 +0200 | [diff] [blame] | 2359 | ring->add_request = i9xx_add_request; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 2360 | ring->get_seqno = ring_get_seqno; |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 2361 | ring->set_seqno = ring_set_seqno; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 2362 | if (IS_GEN5(dev)) { |
Ben Widawsky | cc609d5 | 2013-05-28 19:22:29 -0700 | [diff] [blame] | 2363 | ring->irq_enable_mask = ILK_BSD_USER_INTERRUPT; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 2364 | ring->irq_get = gen5_ring_get_irq; |
| 2365 | ring->irq_put = gen5_ring_put_irq; |
| 2366 | } else { |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 2367 | ring->irq_enable_mask = I915_BSD_USER_INTERRUPT; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 2368 | ring->irq_get = i9xx_ring_get_irq; |
| 2369 | ring->irq_put = i9xx_ring_put_irq; |
| 2370 | } |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 2371 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 2372 | } |
| 2373 | ring->init = init_ring_common; |
| 2374 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2375 | return intel_init_ring_buffer(dev, ring); |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 2376 | } |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 2377 | |
Zhao Yakui | 845f74a | 2014-04-17 10:37:37 +0800 | [diff] [blame] | 2378 | /** |
| 2379 | * Initialize the second BSD ring for Broadwell GT3. |
| 2380 | * It is noted that this only exists on Broadwell GT3. |
| 2381 | */ |
| 2382 | int intel_init_bsd2_ring_buffer(struct drm_device *dev) |
| 2383 | { |
| 2384 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2385 | struct intel_engine_cs *ring = &dev_priv->ring[VCS2]; |
Zhao Yakui | 845f74a | 2014-04-17 10:37:37 +0800 | [diff] [blame] | 2386 | |
| 2387 | if ((INTEL_INFO(dev)->gen != 8)) { |
| 2388 | DRM_ERROR("No dual-BSD ring on non-BDW machine\n"); |
| 2389 | return -EINVAL; |
| 2390 | } |
| 2391 | |
Rodrigo Vivi | f7b6423 | 2014-07-01 02:41:36 -0700 | [diff] [blame] | 2392 | ring->name = "bsd2 ring"; |
Zhao Yakui | 845f74a | 2014-04-17 10:37:37 +0800 | [diff] [blame] | 2393 | ring->id = VCS2; |
| 2394 | |
| 2395 | ring->write_tail = ring_write_tail; |
| 2396 | ring->mmio_base = GEN8_BSD2_RING_BASE; |
| 2397 | ring->flush = gen6_bsd_ring_flush; |
| 2398 | ring->add_request = gen6_add_request; |
| 2399 | ring->get_seqno = gen6_ring_get_seqno; |
| 2400 | ring->set_seqno = ring_set_seqno; |
| 2401 | ring->irq_enable_mask = |
| 2402 | GT_RENDER_USER_INTERRUPT << GEN8_VCS2_IRQ_SHIFT; |
| 2403 | ring->irq_get = gen8_ring_get_irq; |
| 2404 | ring->irq_put = gen8_ring_put_irq; |
| 2405 | ring->dispatch_execbuffer = |
| 2406 | gen8_ring_dispatch_execbuffer; |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2407 | if (i915_semaphore_is_enabled(dev)) { |
Ben Widawsky | 5ee426c | 2014-06-30 09:53:38 -0700 | [diff] [blame] | 2408 | ring->semaphore.sync_to = gen8_ring_sync; |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2409 | ring->semaphore.signal = gen8_xcs_signal; |
| 2410 | GEN8_RING_SEMAPHORE_INIT; |
| 2411 | } |
Zhao Yakui | 845f74a | 2014-04-17 10:37:37 +0800 | [diff] [blame] | 2412 | ring->init = init_ring_common; |
| 2413 | |
| 2414 | return intel_init_ring_buffer(dev, ring); |
| 2415 | } |
| 2416 | |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 2417 | int intel_init_blt_ring_buffer(struct drm_device *dev) |
| 2418 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 2419 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2420 | struct intel_engine_cs *ring = &dev_priv->ring[BCS]; |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 2421 | |
Daniel Vetter | 3535d9d | 2012-04-11 22:12:50 +0200 | [diff] [blame] | 2422 | ring->name = "blitter ring"; |
| 2423 | ring->id = BCS; |
| 2424 | |
| 2425 | ring->mmio_base = BLT_RING_BASE; |
| 2426 | ring->write_tail = ring_write_tail; |
Ben Widawsky | ea25132 | 2013-05-28 19:22:21 -0700 | [diff] [blame] | 2427 | ring->flush = gen6_ring_flush; |
Daniel Vetter | 3535d9d | 2012-04-11 22:12:50 +0200 | [diff] [blame] | 2428 | ring->add_request = gen6_add_request; |
| 2429 | ring->get_seqno = gen6_ring_get_seqno; |
Mika Kuoppala | b70ec5b | 2012-12-19 11:13:05 +0200 | [diff] [blame] | 2430 | ring->set_seqno = ring_set_seqno; |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2431 | if (INTEL_INFO(dev)->gen >= 8) { |
| 2432 | ring->irq_enable_mask = |
| 2433 | GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT; |
| 2434 | ring->irq_get = gen8_ring_get_irq; |
| 2435 | ring->irq_put = gen8_ring_put_irq; |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 2436 | ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2437 | if (i915_semaphore_is_enabled(dev)) { |
Ben Widawsky | 5ee426c | 2014-06-30 09:53:38 -0700 | [diff] [blame] | 2438 | ring->semaphore.sync_to = gen8_ring_sync; |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2439 | ring->semaphore.signal = gen8_xcs_signal; |
| 2440 | GEN8_RING_SEMAPHORE_INIT; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2441 | } |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2442 | } else { |
| 2443 | ring->irq_enable_mask = GT_BLT_USER_INTERRUPT; |
| 2444 | ring->irq_get = gen6_ring_get_irq; |
| 2445 | ring->irq_put = gen6_ring_put_irq; |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 2446 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2447 | if (i915_semaphore_is_enabled(dev)) { |
| 2448 | ring->semaphore.signal = gen6_signal; |
| 2449 | ring->semaphore.sync_to = gen6_ring_sync; |
| 2450 | /* |
| 2451 | * The current semaphore is only applied on pre-gen8 |
| 2452 | * platform. And there is no VCS2 ring on the pre-gen8 |
| 2453 | * platform. So the semaphore between BCS and VCS2 is |
| 2454 | * initialized as INVALID. Gen8 will initialize the |
| 2455 | * sema between BCS and VCS2 later. |
| 2456 | */ |
| 2457 | ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_BR; |
| 2458 | ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_BV; |
| 2459 | ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_INVALID; |
| 2460 | ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_BVE; |
| 2461 | ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID; |
| 2462 | ring->semaphore.mbox.signal[RCS] = GEN6_RBSYNC; |
| 2463 | ring->semaphore.mbox.signal[VCS] = GEN6_VBSYNC; |
| 2464 | ring->semaphore.mbox.signal[BCS] = GEN6_NOSYNC; |
| 2465 | ring->semaphore.mbox.signal[VECS] = GEN6_VEBSYNC; |
| 2466 | ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC; |
| 2467 | } |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2468 | } |
Daniel Vetter | 3535d9d | 2012-04-11 22:12:50 +0200 | [diff] [blame] | 2469 | ring->init = init_ring_common; |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 2470 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 2471 | return intel_init_ring_buffer(dev, ring); |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 2472 | } |
Chris Wilson | a7b9761 | 2012-07-20 12:41:08 +0100 | [diff] [blame] | 2473 | |
Ben Widawsky | 9a8a221 | 2013-05-28 19:22:23 -0700 | [diff] [blame] | 2474 | int intel_init_vebox_ring_buffer(struct drm_device *dev) |
| 2475 | { |
Jani Nikula | 4640c4f | 2014-03-31 14:27:19 +0300 | [diff] [blame] | 2476 | struct drm_i915_private *dev_priv = dev->dev_private; |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2477 | struct intel_engine_cs *ring = &dev_priv->ring[VECS]; |
Ben Widawsky | 9a8a221 | 2013-05-28 19:22:23 -0700 | [diff] [blame] | 2478 | |
| 2479 | ring->name = "video enhancement ring"; |
| 2480 | ring->id = VECS; |
| 2481 | |
| 2482 | ring->mmio_base = VEBOX_RING_BASE; |
| 2483 | ring->write_tail = ring_write_tail; |
| 2484 | ring->flush = gen6_ring_flush; |
| 2485 | ring->add_request = gen6_add_request; |
| 2486 | ring->get_seqno = gen6_ring_get_seqno; |
| 2487 | ring->set_seqno = ring_set_seqno; |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2488 | |
| 2489 | if (INTEL_INFO(dev)->gen >= 8) { |
| 2490 | ring->irq_enable_mask = |
Daniel Vetter | 40c499f | 2013-11-07 21:40:39 -0800 | [diff] [blame] | 2491 | GT_RENDER_USER_INTERRUPT << GEN8_VECS_IRQ_SHIFT; |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2492 | ring->irq_get = gen8_ring_get_irq; |
| 2493 | ring->irq_put = gen8_ring_put_irq; |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 2494 | ring->dispatch_execbuffer = gen8_ring_dispatch_execbuffer; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2495 | if (i915_semaphore_is_enabled(dev)) { |
Ben Widawsky | 5ee426c | 2014-06-30 09:53:38 -0700 | [diff] [blame] | 2496 | ring->semaphore.sync_to = gen8_ring_sync; |
Ben Widawsky | 3e78998 | 2014-06-30 09:53:37 -0700 | [diff] [blame] | 2497 | ring->semaphore.signal = gen8_xcs_signal; |
| 2498 | GEN8_RING_SEMAPHORE_INIT; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2499 | } |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2500 | } else { |
| 2501 | ring->irq_enable_mask = PM_VEBOX_USER_INTERRUPT; |
| 2502 | ring->irq_get = hsw_vebox_get_irq; |
| 2503 | ring->irq_put = hsw_vebox_put_irq; |
Ben Widawsky | 1c7a062 | 2013-11-02 21:07:12 -0700 | [diff] [blame] | 2504 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
Ben Widawsky | 707d9cf | 2014-06-30 09:53:36 -0700 | [diff] [blame] | 2505 | if (i915_semaphore_is_enabled(dev)) { |
| 2506 | ring->semaphore.sync_to = gen6_ring_sync; |
| 2507 | ring->semaphore.signal = gen6_signal; |
| 2508 | ring->semaphore.mbox.wait[RCS] = MI_SEMAPHORE_SYNC_VER; |
| 2509 | ring->semaphore.mbox.wait[VCS] = MI_SEMAPHORE_SYNC_VEV; |
| 2510 | ring->semaphore.mbox.wait[BCS] = MI_SEMAPHORE_SYNC_VEB; |
| 2511 | ring->semaphore.mbox.wait[VECS] = MI_SEMAPHORE_SYNC_INVALID; |
| 2512 | ring->semaphore.mbox.wait[VCS2] = MI_SEMAPHORE_SYNC_INVALID; |
| 2513 | ring->semaphore.mbox.signal[RCS] = GEN6_RVESYNC; |
| 2514 | ring->semaphore.mbox.signal[VCS] = GEN6_VVESYNC; |
| 2515 | ring->semaphore.mbox.signal[BCS] = GEN6_BVESYNC; |
| 2516 | ring->semaphore.mbox.signal[VECS] = GEN6_NOSYNC; |
| 2517 | ring->semaphore.mbox.signal[VCS2] = GEN6_NOSYNC; |
| 2518 | } |
Ben Widawsky | abd58f0 | 2013-11-02 21:07:09 -0700 | [diff] [blame] | 2519 | } |
Ben Widawsky | 9a8a221 | 2013-05-28 19:22:23 -0700 | [diff] [blame] | 2520 | ring->init = init_ring_common; |
| 2521 | |
| 2522 | return intel_init_ring_buffer(dev, ring); |
| 2523 | } |
| 2524 | |
Chris Wilson | a7b9761 | 2012-07-20 12:41:08 +0100 | [diff] [blame] | 2525 | int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2526 | intel_ring_flush_all_caches(struct intel_engine_cs *ring) |
Chris Wilson | a7b9761 | 2012-07-20 12:41:08 +0100 | [diff] [blame] | 2527 | { |
| 2528 | int ret; |
| 2529 | |
| 2530 | if (!ring->gpu_caches_dirty) |
| 2531 | return 0; |
| 2532 | |
| 2533 | ret = ring->flush(ring, 0, I915_GEM_GPU_DOMAINS); |
| 2534 | if (ret) |
| 2535 | return ret; |
| 2536 | |
| 2537 | trace_i915_gem_ring_flush(ring, 0, I915_GEM_GPU_DOMAINS); |
| 2538 | |
| 2539 | ring->gpu_caches_dirty = false; |
| 2540 | return 0; |
| 2541 | } |
| 2542 | |
| 2543 | int |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2544 | intel_ring_invalidate_all_caches(struct intel_engine_cs *ring) |
Chris Wilson | a7b9761 | 2012-07-20 12:41:08 +0100 | [diff] [blame] | 2545 | { |
| 2546 | uint32_t flush_domains; |
| 2547 | int ret; |
| 2548 | |
| 2549 | flush_domains = 0; |
| 2550 | if (ring->gpu_caches_dirty) |
| 2551 | flush_domains = I915_GEM_GPU_DOMAINS; |
| 2552 | |
| 2553 | ret = ring->flush(ring, I915_GEM_GPU_DOMAINS, flush_domains); |
| 2554 | if (ret) |
| 2555 | return ret; |
| 2556 | |
| 2557 | trace_i915_gem_ring_flush(ring, I915_GEM_GPU_DOMAINS, flush_domains); |
| 2558 | |
| 2559 | ring->gpu_caches_dirty = false; |
| 2560 | return 0; |
| 2561 | } |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 2562 | |
| 2563 | void |
Oscar Mateo | a4872ba | 2014-05-22 14:13:33 +0100 | [diff] [blame] | 2564 | intel_stop_ring_buffer(struct intel_engine_cs *ring) |
Chris Wilson | e3efda4 | 2014-04-09 09:19:41 +0100 | [diff] [blame] | 2565 | { |
| 2566 | int ret; |
| 2567 | |
| 2568 | if (!intel_ring_initialized(ring)) |
| 2569 | return; |
| 2570 | |
| 2571 | ret = intel_ring_idle(ring); |
| 2572 | if (ret && !i915_reset_in_progress(&to_i915(ring->dev)->gpu_error)) |
| 2573 | DRM_ERROR("failed to quiesce %s whilst cleaning up: %d\n", |
| 2574 | ring->name, ret); |
| 2575 | |
| 2576 | stop_ring(ring); |
| 2577 | } |