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 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 36 | /* |
| 37 | * 965+ support PIPE_CONTROL commands, which provide finer grained control |
| 38 | * over cache flushing. |
| 39 | */ |
| 40 | struct pipe_control { |
| 41 | struct drm_i915_gem_object *obj; |
| 42 | volatile u32 *cpu_page; |
| 43 | u32 gtt_offset; |
| 44 | }; |
| 45 | |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 46 | static inline int ring_space(struct intel_ring_buffer *ring) |
| 47 | { |
| 48 | int space = (ring->head & HEAD_ADDR) - (ring->tail + 8); |
| 49 | if (space < 0) |
| 50 | space += ring->size; |
| 51 | return space; |
| 52 | } |
| 53 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 54 | static int |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 55 | gen2_render_ring_flush(struct intel_ring_buffer *ring, |
| 56 | u32 invalidate_domains, |
| 57 | u32 flush_domains) |
| 58 | { |
| 59 | u32 cmd; |
| 60 | int ret; |
| 61 | |
| 62 | cmd = MI_FLUSH; |
Daniel Vetter | 31b14c9 | 2012-04-19 16:45:22 +0200 | [diff] [blame] | 63 | if (((invalidate_domains|flush_domains) & I915_GEM_DOMAIN_RENDER) == 0) |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 64 | cmd |= MI_NO_WRITE_FLUSH; |
| 65 | |
| 66 | if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER) |
| 67 | cmd |= MI_READ_FLUSH; |
| 68 | |
| 69 | ret = intel_ring_begin(ring, 2); |
| 70 | if (ret) |
| 71 | return ret; |
| 72 | |
| 73 | intel_ring_emit(ring, cmd); |
| 74 | intel_ring_emit(ring, MI_NOOP); |
| 75 | intel_ring_advance(ring); |
| 76 | |
| 77 | return 0; |
| 78 | } |
| 79 | |
| 80 | static int |
| 81 | gen4_render_ring_flush(struct intel_ring_buffer *ring, |
| 82 | u32 invalidate_domains, |
| 83 | u32 flush_domains) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 84 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 85 | struct drm_device *dev = ring->dev; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 86 | u32 cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 87 | int ret; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 88 | |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 89 | /* |
| 90 | * read/write caches: |
| 91 | * |
| 92 | * I915_GEM_DOMAIN_RENDER is always invalidated, but is |
| 93 | * only flushed if MI_NO_WRITE_FLUSH is unset. On 965, it is |
| 94 | * also flushed at 2d versus 3d pipeline switches. |
| 95 | * |
| 96 | * read-only caches: |
| 97 | * |
| 98 | * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if |
| 99 | * MI_READ_FLUSH is set, and is always flushed on 965. |
| 100 | * |
| 101 | * I915_GEM_DOMAIN_COMMAND may not exist? |
| 102 | * |
| 103 | * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is |
| 104 | * invalidated when MI_EXE_FLUSH is set. |
| 105 | * |
| 106 | * I915_GEM_DOMAIN_VERTEX, which exists on 965, is |
| 107 | * invalidated with every MI_FLUSH. |
| 108 | * |
| 109 | * TLBs: |
| 110 | * |
| 111 | * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND |
| 112 | * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and |
| 113 | * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER |
| 114 | * are flushed at any MI_FLUSH. |
| 115 | */ |
| 116 | |
| 117 | cmd = MI_FLUSH | MI_NO_WRITE_FLUSH; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 118 | if ((invalidate_domains|flush_domains) & I915_GEM_DOMAIN_RENDER) |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 119 | cmd &= ~MI_NO_WRITE_FLUSH; |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 120 | if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION) |
| 121 | cmd |= MI_EXE_FLUSH; |
| 122 | |
| 123 | if (invalidate_domains & I915_GEM_DOMAIN_COMMAND && |
| 124 | (IS_G4X(dev) || IS_GEN5(dev))) |
| 125 | cmd |= MI_INVALIDATE_ISP; |
| 126 | |
| 127 | ret = intel_ring_begin(ring, 2); |
| 128 | if (ret) |
| 129 | return ret; |
| 130 | |
| 131 | intel_ring_emit(ring, cmd); |
| 132 | intel_ring_emit(ring, MI_NOOP); |
| 133 | intel_ring_advance(ring); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 134 | |
| 135 | return 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 136 | } |
| 137 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 138 | /** |
| 139 | * Emits a PIPE_CONTROL with a non-zero post-sync operation, for |
| 140 | * implementing two workarounds on gen6. From section 1.4.7.1 |
| 141 | * "PIPE_CONTROL" of the Sandy Bridge PRM volume 2 part 1: |
| 142 | * |
| 143 | * [DevSNB-C+{W/A}] Before any depth stall flush (including those |
| 144 | * produced by non-pipelined state commands), software needs to first |
| 145 | * send a PIPE_CONTROL with no bits set except Post-Sync Operation != |
| 146 | * 0. |
| 147 | * |
| 148 | * [Dev-SNB{W/A}]: Before a PIPE_CONTROL with Write Cache Flush Enable |
| 149 | * =1, a PIPE_CONTROL with any non-zero post-sync-op is required. |
| 150 | * |
| 151 | * And the workaround for these two requires this workaround first: |
| 152 | * |
| 153 | * [Dev-SNB{W/A}]: Pipe-control with CS-stall bit set must be sent |
| 154 | * BEFORE the pipe-control with a post-sync op and no write-cache |
| 155 | * flushes. |
| 156 | * |
| 157 | * And this last workaround is tricky because of the requirements on |
| 158 | * that bit. From section 1.4.7.2.3 "Stall" of the Sandy Bridge PRM |
| 159 | * volume 2 part 1: |
| 160 | * |
| 161 | * "1 of the following must also be set: |
| 162 | * - Render Target Cache Flush Enable ([12] of DW1) |
| 163 | * - Depth Cache Flush Enable ([0] of DW1) |
| 164 | * - Stall at Pixel Scoreboard ([1] of DW1) |
| 165 | * - Depth Stall ([13] of DW1) |
| 166 | * - Post-Sync Operation ([13] of DW1) |
| 167 | * - Notify Enable ([8] of DW1)" |
| 168 | * |
| 169 | * The cache flushes require the workaround flush that triggered this |
| 170 | * one, so we can't use it. Depth stall would trigger the same. |
| 171 | * Post-sync nonzero is what triggered this second workaround, so we |
| 172 | * can't use that one either. Notify enable is IRQs, which aren't |
| 173 | * really our business. That leaves only stall at scoreboard. |
| 174 | */ |
| 175 | static int |
| 176 | intel_emit_post_sync_nonzero_flush(struct intel_ring_buffer *ring) |
| 177 | { |
| 178 | struct pipe_control *pc = ring->private; |
| 179 | u32 scratch_addr = pc->gtt_offset + 128; |
| 180 | int ret; |
| 181 | |
| 182 | |
| 183 | ret = intel_ring_begin(ring, 6); |
| 184 | if (ret) |
| 185 | return ret; |
| 186 | |
| 187 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); |
| 188 | intel_ring_emit(ring, PIPE_CONTROL_CS_STALL | |
| 189 | PIPE_CONTROL_STALL_AT_SCOREBOARD); |
| 190 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */ |
| 191 | intel_ring_emit(ring, 0); /* low dword */ |
| 192 | intel_ring_emit(ring, 0); /* high dword */ |
| 193 | intel_ring_emit(ring, MI_NOOP); |
| 194 | intel_ring_advance(ring); |
| 195 | |
| 196 | ret = intel_ring_begin(ring, 6); |
| 197 | if (ret) |
| 198 | return ret; |
| 199 | |
| 200 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); |
| 201 | intel_ring_emit(ring, PIPE_CONTROL_QW_WRITE); |
| 202 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */ |
| 203 | intel_ring_emit(ring, 0); |
| 204 | intel_ring_emit(ring, 0); |
| 205 | intel_ring_emit(ring, MI_NOOP); |
| 206 | intel_ring_advance(ring); |
| 207 | |
| 208 | return 0; |
| 209 | } |
| 210 | |
| 211 | static int |
| 212 | gen6_render_ring_flush(struct intel_ring_buffer *ring, |
| 213 | u32 invalidate_domains, u32 flush_domains) |
| 214 | { |
| 215 | u32 flags = 0; |
| 216 | struct pipe_control *pc = ring->private; |
| 217 | u32 scratch_addr = pc->gtt_offset + 128; |
| 218 | int ret; |
| 219 | |
| 220 | /* Force SNB workarounds for PIPE_CONTROL flushes */ |
Daniel Vetter | 97f209b | 2012-06-28 09:48:42 +0200 | [diff] [blame] | 221 | ret = intel_emit_post_sync_nonzero_flush(ring); |
| 222 | if (ret) |
| 223 | return ret; |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 224 | |
| 225 | /* Just flush everything. Experiments have shown that reducing the |
| 226 | * number of bits based on the write domains has little performance |
| 227 | * impact. |
| 228 | */ |
Chris Wilson | 7d54a90 | 2012-08-10 10:18:10 +0100 | [diff] [blame] | 229 | if (flush_domains) { |
| 230 | flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; |
| 231 | flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; |
| 232 | /* |
| 233 | * Ensure that any following seqno writes only happen |
| 234 | * when the render cache is indeed flushed. |
| 235 | */ |
Daniel Vetter | 97f209b | 2012-06-28 09:48:42 +0200 | [diff] [blame] | 236 | flags |= PIPE_CONTROL_CS_STALL; |
Chris Wilson | 7d54a90 | 2012-08-10 10:18:10 +0100 | [diff] [blame] | 237 | } |
| 238 | if (invalidate_domains) { |
| 239 | flags |= PIPE_CONTROL_TLB_INVALIDATE; |
| 240 | flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; |
| 241 | flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; |
| 242 | flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; |
| 243 | flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; |
| 244 | flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; |
| 245 | /* |
| 246 | * TLB invalidate requires a post-sync write. |
| 247 | */ |
| 248 | flags |= PIPE_CONTROL_QW_WRITE; |
| 249 | } |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 250 | |
Chris Wilson | 7d54a90 | 2012-08-10 10:18:10 +0100 | [diff] [blame] | 251 | ret = intel_ring_begin(ring, 4); |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 252 | if (ret) |
| 253 | return ret; |
| 254 | |
Chris Wilson | 7d54a90 | 2012-08-10 10:18:10 +0100 | [diff] [blame] | 255 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(4)); |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 256 | intel_ring_emit(ring, flags); |
| 257 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); |
Chris Wilson | 7d54a90 | 2012-08-10 10:18:10 +0100 | [diff] [blame] | 258 | intel_ring_emit(ring, 0); |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 259 | intel_ring_advance(ring); |
| 260 | |
| 261 | return 0; |
| 262 | } |
| 263 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 264 | static void ring_write_tail(struct intel_ring_buffer *ring, |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 265 | u32 value) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 266 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 267 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 268 | I915_WRITE_TAIL(ring, value); |
Xiang, Haihao | d46eefa | 2010-09-16 10:43:12 +0800 | [diff] [blame] | 269 | } |
| 270 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 271 | u32 intel_ring_get_active_head(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 272 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 273 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
| 274 | u32 acthd_reg = INTEL_INFO(ring->dev)->gen >= 4 ? |
Daniel Vetter | 3d281d8 | 2010-09-24 21:14:22 +0200 | [diff] [blame] | 275 | RING_ACTHD(ring->mmio_base) : ACTHD; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 276 | |
| 277 | return I915_READ(acthd_reg); |
| 278 | } |
| 279 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 280 | static int init_ring_common(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 281 | { |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 282 | struct drm_device *dev = ring->dev; |
| 283 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 284 | struct drm_i915_gem_object *obj = ring->obj; |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 285 | int ret = 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 286 | u32 head; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 287 | |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 288 | if (HAS_FORCE_WAKE(dev)) |
| 289 | gen6_gt_force_wake_get(dev_priv); |
| 290 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 291 | /* Stop the ring if it's running. */ |
Daniel Vetter | 7f2ab69 | 2010-08-02 17:06:59 +0200 | [diff] [blame] | 292 | I915_WRITE_CTL(ring, 0); |
Daniel Vetter | 570ef60 | 2010-08-02 17:06:23 +0200 | [diff] [blame] | 293 | I915_WRITE_HEAD(ring, 0); |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 294 | ring->write_tail(ring, 0); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 295 | |
Daniel Vetter | 570ef60 | 2010-08-02 17:06:23 +0200 | [diff] [blame] | 296 | head = I915_READ_HEAD(ring) & HEAD_ADDR; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 297 | |
| 298 | /* G45 ring initialization fails to reset head to zero */ |
| 299 | if (head != 0) { |
Chris Wilson | 6fd0d56 | 2010-12-05 20:42:33 +0000 | [diff] [blame] | 300 | DRM_DEBUG_KMS("%s head not reset to zero " |
| 301 | "ctl %08x head %08x tail %08x start %08x\n", |
| 302 | ring->name, |
| 303 | I915_READ_CTL(ring), |
| 304 | I915_READ_HEAD(ring), |
| 305 | I915_READ_TAIL(ring), |
| 306 | I915_READ_START(ring)); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 307 | |
Daniel Vetter | 570ef60 | 2010-08-02 17:06:23 +0200 | [diff] [blame] | 308 | I915_WRITE_HEAD(ring, 0); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 309 | |
Chris Wilson | 6fd0d56 | 2010-12-05 20:42:33 +0000 | [diff] [blame] | 310 | if (I915_READ_HEAD(ring) & HEAD_ADDR) { |
| 311 | DRM_ERROR("failed to set %s head to zero " |
| 312 | "ctl %08x head %08x tail %08x start %08x\n", |
| 313 | ring->name, |
| 314 | I915_READ_CTL(ring), |
| 315 | I915_READ_HEAD(ring), |
| 316 | I915_READ_TAIL(ring), |
| 317 | I915_READ_START(ring)); |
| 318 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 319 | } |
| 320 | |
Daniel Vetter | 0d8957c | 2012-08-07 09:54:14 +0200 | [diff] [blame] | 321 | /* Initialize the ring. This must happen _after_ we've cleared the ring |
| 322 | * registers with the above sequence (the readback of the HEAD registers |
| 323 | * also enforces ordering), otherwise the hw might lose the new ring |
| 324 | * register values. */ |
| 325 | I915_WRITE_START(ring, obj->gtt_offset); |
Daniel Vetter | 7f2ab69 | 2010-08-02 17:06:59 +0200 | [diff] [blame] | 326 | I915_WRITE_CTL(ring, |
Chris Wilson | ae69b42 | 2010-11-07 11:45:52 +0000 | [diff] [blame] | 327 | ((ring->size - PAGE_SIZE) & RING_NR_PAGES) |
Chris Wilson | 5d031e5 | 2012-02-08 13:34:13 +0000 | [diff] [blame] | 328 | | RING_VALID); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 329 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 330 | /* If the head is still not zero, the ring is dead */ |
Sean Paul | f01db98 | 2012-03-16 12:43:22 -0400 | [diff] [blame] | 331 | if (wait_for((I915_READ_CTL(ring) & RING_VALID) != 0 && |
| 332 | I915_READ_START(ring) == obj->gtt_offset && |
| 333 | (I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) { |
Chris Wilson | e74cfed | 2010-11-09 10:16:56 +0000 | [diff] [blame] | 334 | DRM_ERROR("%s initialization failed " |
| 335 | "ctl %08x head %08x tail %08x start %08x\n", |
| 336 | ring->name, |
| 337 | I915_READ_CTL(ring), |
| 338 | I915_READ_HEAD(ring), |
| 339 | I915_READ_TAIL(ring), |
| 340 | I915_READ_START(ring)); |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 341 | ret = -EIO; |
| 342 | goto out; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 343 | } |
| 344 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 345 | if (!drm_core_check_feature(ring->dev, DRIVER_MODESET)) |
| 346 | i915_kernel_lost_context(ring->dev); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 347 | else { |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 348 | ring->head = I915_READ_HEAD(ring); |
Daniel Vetter | 870e86d | 2010-08-02 16:29:44 +0200 | [diff] [blame] | 349 | ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR; |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 350 | ring->space = ring_space(ring); |
Chris Wilson | c3b2003 | 2012-05-28 22:33:02 +0100 | [diff] [blame] | 351 | ring->last_retired_head = -1; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 352 | } |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 353 | |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 354 | out: |
| 355 | if (HAS_FORCE_WAKE(dev)) |
| 356 | gen6_gt_force_wake_put(dev_priv); |
| 357 | |
| 358 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 359 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 360 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 361 | static int |
| 362 | init_pipe_control(struct intel_ring_buffer *ring) |
| 363 | { |
| 364 | struct pipe_control *pc; |
| 365 | struct drm_i915_gem_object *obj; |
| 366 | int ret; |
| 367 | |
| 368 | if (ring->private) |
| 369 | return 0; |
| 370 | |
| 371 | pc = kmalloc(sizeof(*pc), GFP_KERNEL); |
| 372 | if (!pc) |
| 373 | return -ENOMEM; |
| 374 | |
| 375 | obj = i915_gem_alloc_object(ring->dev, 4096); |
| 376 | if (obj == NULL) { |
| 377 | DRM_ERROR("Failed to allocate seqno page\n"); |
| 378 | ret = -ENOMEM; |
| 379 | goto err; |
| 380 | } |
Chris Wilson | e4ffd17 | 2011-04-04 09:44:39 +0100 | [diff] [blame] | 381 | |
| 382 | i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 383 | |
| 384 | ret = i915_gem_object_pin(obj, 4096, true); |
| 385 | if (ret) |
| 386 | goto err_unref; |
| 387 | |
| 388 | pc->gtt_offset = obj->gtt_offset; |
| 389 | pc->cpu_page = kmap(obj->pages[0]); |
| 390 | if (pc->cpu_page == NULL) |
| 391 | goto err_unpin; |
| 392 | |
| 393 | pc->obj = obj; |
| 394 | ring->private = pc; |
| 395 | return 0; |
| 396 | |
| 397 | err_unpin: |
| 398 | i915_gem_object_unpin(obj); |
| 399 | err_unref: |
| 400 | drm_gem_object_unreference(&obj->base); |
| 401 | err: |
| 402 | kfree(pc); |
| 403 | return ret; |
| 404 | } |
| 405 | |
| 406 | static void |
| 407 | cleanup_pipe_control(struct intel_ring_buffer *ring) |
| 408 | { |
| 409 | struct pipe_control *pc = ring->private; |
| 410 | struct drm_i915_gem_object *obj; |
| 411 | |
| 412 | if (!ring->private) |
| 413 | return; |
| 414 | |
| 415 | obj = pc->obj; |
| 416 | kunmap(obj->pages[0]); |
| 417 | i915_gem_object_unpin(obj); |
| 418 | drm_gem_object_unreference(&obj->base); |
| 419 | |
| 420 | kfree(pc); |
| 421 | ring->private = NULL; |
| 422 | } |
| 423 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 424 | static int init_render_ring(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 425 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 426 | struct drm_device *dev = ring->dev; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 427 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 428 | int ret = init_ring_common(ring); |
Zhenyu Wang | a69ffdb | 2010-08-30 16:12:42 +0800 | [diff] [blame] | 429 | |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 430 | if (INTEL_INFO(dev)->gen > 3) { |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 431 | I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH)); |
Jesse Barnes | b095cd0 | 2011-08-12 15:28:32 -0700 | [diff] [blame] | 432 | if (IS_GEN7(dev)) |
| 433 | I915_WRITE(GFX_MODE_GEN7, |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 434 | _MASKED_BIT_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) | |
| 435 | _MASKED_BIT_ENABLE(GFX_REPLAY_MODE)); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 436 | } |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 437 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 438 | if (INTEL_INFO(dev)->gen >= 5) { |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 439 | ret = init_pipe_control(ring); |
| 440 | if (ret) |
| 441 | return ret; |
| 442 | } |
| 443 | |
Daniel Vetter | 5e13a0c | 2012-05-08 13:39:59 +0200 | [diff] [blame] | 444 | if (IS_GEN6(dev)) { |
Kenneth Graunke | 3a69ddd | 2012-04-27 12:44:41 -0700 | [diff] [blame] | 445 | /* From the Sandybridge PRM, volume 1 part 3, page 24: |
| 446 | * "If this bit is set, STCunit will have LRA as replacement |
| 447 | * policy. [...] This bit must be reset. LRA replacement |
| 448 | * policy is not supported." |
| 449 | */ |
| 450 | I915_WRITE(CACHE_MODE_0, |
Daniel Vetter | 5e13a0c | 2012-05-08 13:39:59 +0200 | [diff] [blame] | 451 | _MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB)); |
Ben Widawsky | 12b0286 | 2012-06-04 14:42:50 -0700 | [diff] [blame] | 452 | |
| 453 | /* This is not explicitly set for GEN6, so read the register. |
| 454 | * see intel_ring_mi_set_context() for why we care. |
| 455 | * TODO: consider explicitly setting the bit for GEN5 |
| 456 | */ |
| 457 | ring->itlb_before_ctx_switch = |
| 458 | !!(I915_READ(GFX_MODE) & GFX_TLB_INVALIDATE_ALWAYS); |
Ben Widawsky | 84f9f93 | 2011-12-12 19:21:58 -0800 | [diff] [blame] | 459 | } |
| 460 | |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 461 | if (INTEL_INFO(dev)->gen >= 6) |
| 462 | I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING)); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 463 | |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 464 | if (IS_IVYBRIDGE(dev)) |
| 465 | I915_WRITE_IMR(ring, ~GEN6_RENDER_L3_PARITY_ERROR); |
| 466 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 467 | return ret; |
| 468 | } |
| 469 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 470 | static void render_ring_cleanup(struct intel_ring_buffer *ring) |
| 471 | { |
| 472 | if (!ring->private) |
| 473 | return; |
| 474 | |
| 475 | cleanup_pipe_control(ring); |
| 476 | } |
| 477 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 478 | static void |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 479 | update_mboxes(struct intel_ring_buffer *ring, |
| 480 | u32 seqno, |
| 481 | u32 mmio_offset) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 482 | { |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 483 | intel_ring_emit(ring, MI_SEMAPHORE_MBOX | |
| 484 | MI_SEMAPHORE_GLOBAL_GTT | |
| 485 | MI_SEMAPHORE_REGISTER | |
| 486 | MI_SEMAPHORE_UPDATE); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 487 | intel_ring_emit(ring, seqno); |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 488 | intel_ring_emit(ring, mmio_offset); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 489 | } |
| 490 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 491 | /** |
| 492 | * gen6_add_request - Update the semaphore mailbox registers |
| 493 | * |
| 494 | * @ring - ring that is adding a request |
| 495 | * @seqno - return seqno stuck into the ring |
| 496 | * |
| 497 | * Update the mailbox registers in the *other* rings with the current seqno. |
| 498 | * This acts like a signal in the canonical semaphore. |
| 499 | */ |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 500 | static int |
| 501 | gen6_add_request(struct intel_ring_buffer *ring, |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 502 | u32 *seqno) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 503 | { |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 504 | u32 mbox1_reg; |
| 505 | u32 mbox2_reg; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 506 | int ret; |
| 507 | |
| 508 | ret = intel_ring_begin(ring, 10); |
| 509 | if (ret) |
| 510 | return ret; |
| 511 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 512 | mbox1_reg = ring->signal_mbox[0]; |
| 513 | mbox2_reg = ring->signal_mbox[1]; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 514 | |
Daniel Vetter | 53d227f | 2012-01-25 16:32:49 +0100 | [diff] [blame] | 515 | *seqno = i915_gem_next_request_seqno(ring); |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 516 | |
| 517 | update_mboxes(ring, *seqno, mbox1_reg); |
| 518 | update_mboxes(ring, *seqno, mbox2_reg); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 519 | intel_ring_emit(ring, MI_STORE_DWORD_INDEX); |
| 520 | intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 521 | intel_ring_emit(ring, *seqno); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 522 | intel_ring_emit(ring, MI_USER_INTERRUPT); |
| 523 | intel_ring_advance(ring); |
| 524 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 525 | return 0; |
| 526 | } |
| 527 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 528 | /** |
| 529 | * intel_ring_sync - sync the waiter to the signaller on seqno |
| 530 | * |
| 531 | * @waiter - ring that is waiting |
| 532 | * @signaller - ring which has, or will signal |
| 533 | * @seqno - seqno which the waiter will block on |
| 534 | */ |
| 535 | static int |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 536 | gen6_ring_sync(struct intel_ring_buffer *waiter, |
| 537 | struct intel_ring_buffer *signaller, |
| 538 | u32 seqno) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 539 | { |
| 540 | int ret; |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 541 | u32 dw1 = MI_SEMAPHORE_MBOX | |
| 542 | MI_SEMAPHORE_COMPARE | |
| 543 | MI_SEMAPHORE_REGISTER; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 544 | |
Ben Widawsky | 1500f7e | 2012-04-11 11:18:21 -0700 | [diff] [blame] | 545 | /* Throughout all of the GEM code, seqno passed implies our current |
| 546 | * seqno is >= the last seqno executed. However for hardware the |
| 547 | * comparison is strictly greater than. |
| 548 | */ |
| 549 | seqno -= 1; |
| 550 | |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 551 | WARN_ON(signaller->semaphore_register[waiter->id] == |
| 552 | MI_SEMAPHORE_SYNC_INVALID); |
| 553 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 554 | ret = intel_ring_begin(waiter, 4); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 555 | if (ret) |
| 556 | return ret; |
| 557 | |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 558 | intel_ring_emit(waiter, |
| 559 | dw1 | signaller->semaphore_register[waiter->id]); |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 560 | intel_ring_emit(waiter, seqno); |
| 561 | intel_ring_emit(waiter, 0); |
| 562 | intel_ring_emit(waiter, MI_NOOP); |
| 563 | intel_ring_advance(waiter); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 564 | |
| 565 | return 0; |
| 566 | } |
| 567 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 568 | #define PIPE_CONTROL_FLUSH(ring__, addr__) \ |
| 569 | do { \ |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 570 | intel_ring_emit(ring__, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE | \ |
| 571 | PIPE_CONTROL_DEPTH_STALL); \ |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 572 | intel_ring_emit(ring__, (addr__) | PIPE_CONTROL_GLOBAL_GTT); \ |
| 573 | intel_ring_emit(ring__, 0); \ |
| 574 | intel_ring_emit(ring__, 0); \ |
| 575 | } while (0) |
| 576 | |
| 577 | static int |
| 578 | pc_render_add_request(struct intel_ring_buffer *ring, |
| 579 | u32 *result) |
| 580 | { |
Daniel Vetter | 53d227f | 2012-01-25 16:32:49 +0100 | [diff] [blame] | 581 | u32 seqno = i915_gem_next_request_seqno(ring); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 582 | struct pipe_control *pc = ring->private; |
| 583 | u32 scratch_addr = pc->gtt_offset + 128; |
| 584 | int ret; |
| 585 | |
| 586 | /* For Ironlake, MI_USER_INTERRUPT was deprecated and apparently |
| 587 | * incoherent with writes to memory, i.e. completely fubar, |
| 588 | * so we need to use PIPE_NOTIFY instead. |
| 589 | * |
| 590 | * However, we also need to workaround the qword write |
| 591 | * incoherence by flushing the 6 PIPE_NOTIFY buffers out to |
| 592 | * memory before requesting an interrupt. |
| 593 | */ |
| 594 | ret = intel_ring_begin(ring, 32); |
| 595 | if (ret) |
| 596 | return ret; |
| 597 | |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 598 | 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] | 599 | PIPE_CONTROL_WRITE_FLUSH | |
| 600 | PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 601 | intel_ring_emit(ring, pc->gtt_offset | PIPE_CONTROL_GLOBAL_GTT); |
| 602 | intel_ring_emit(ring, seqno); |
| 603 | intel_ring_emit(ring, 0); |
| 604 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 605 | scratch_addr += 128; /* write to separate cachelines */ |
| 606 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 607 | scratch_addr += 128; |
| 608 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 609 | scratch_addr += 128; |
| 610 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 611 | scratch_addr += 128; |
| 612 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 613 | scratch_addr += 128; |
| 614 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 615 | |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 616 | 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] | 617 | PIPE_CONTROL_WRITE_FLUSH | |
| 618 | PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 619 | PIPE_CONTROL_NOTIFY); |
| 620 | intel_ring_emit(ring, pc->gtt_offset | PIPE_CONTROL_GLOBAL_GTT); |
| 621 | intel_ring_emit(ring, seqno); |
| 622 | intel_ring_emit(ring, 0); |
| 623 | intel_ring_advance(ring); |
| 624 | |
| 625 | *result = seqno; |
| 626 | return 0; |
| 627 | } |
| 628 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 629 | static u32 |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 630 | gen6_ring_get_seqno(struct intel_ring_buffer *ring) |
| 631 | { |
| 632 | struct drm_device *dev = ring->dev; |
| 633 | |
| 634 | /* Workaround to force correct ordering between irq and seqno writes on |
| 635 | * ivb (and maybe also on snb) by reading from a CS register (like |
| 636 | * ACTHD) before reading the status page. */ |
Daniel Vetter | 1c7eaac | 2012-03-27 09:31:24 +0200 | [diff] [blame] | 637 | if (IS_GEN6(dev) || IS_GEN7(dev)) |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 638 | intel_ring_get_active_head(ring); |
| 639 | return intel_read_status_page(ring, I915_GEM_HWS_INDEX); |
| 640 | } |
| 641 | |
| 642 | static u32 |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 643 | ring_get_seqno(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 644 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 645 | return intel_read_status_page(ring, I915_GEM_HWS_INDEX); |
| 646 | } |
| 647 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 648 | static u32 |
| 649 | pc_render_get_seqno(struct intel_ring_buffer *ring) |
| 650 | { |
| 651 | struct pipe_control *pc = ring->private; |
| 652 | return pc->cpu_page[0]; |
| 653 | } |
| 654 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 655 | static bool |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 656 | gen5_ring_get_irq(struct intel_ring_buffer *ring) |
| 657 | { |
| 658 | struct drm_device *dev = ring->dev; |
| 659 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 660 | unsigned long flags; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 661 | |
| 662 | if (!dev->irq_enabled) |
| 663 | return false; |
| 664 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 665 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 666 | if (ring->irq_refcount++ == 0) { |
| 667 | dev_priv->gt_irq_mask &= ~ring->irq_enable_mask; |
| 668 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 669 | POSTING_READ(GTIMR); |
| 670 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 671 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 672 | |
| 673 | return true; |
| 674 | } |
| 675 | |
| 676 | static void |
| 677 | gen5_ring_put_irq(struct intel_ring_buffer *ring) |
| 678 | { |
| 679 | struct drm_device *dev = ring->dev; |
| 680 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 681 | unsigned long flags; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 682 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 683 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 684 | if (--ring->irq_refcount == 0) { |
| 685 | dev_priv->gt_irq_mask |= ring->irq_enable_mask; |
| 686 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 687 | POSTING_READ(GTIMR); |
| 688 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 689 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 690 | } |
| 691 | |
| 692 | static bool |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 693 | i9xx_ring_get_irq(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 694 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 695 | struct drm_device *dev = ring->dev; |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 696 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 697 | unsigned long flags; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 698 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 699 | if (!dev->irq_enabled) |
| 700 | return false; |
| 701 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 702 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 703 | if (ring->irq_refcount++ == 0) { |
| 704 | dev_priv->irq_mask &= ~ring->irq_enable_mask; |
| 705 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 706 | POSTING_READ(IMR); |
| 707 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 708 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 709 | |
| 710 | return true; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 711 | } |
| 712 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 713 | static void |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 714 | i9xx_ring_put_irq(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 715 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 716 | struct drm_device *dev = ring->dev; |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 717 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 718 | unsigned long flags; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 719 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 720 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 721 | if (--ring->irq_refcount == 0) { |
| 722 | dev_priv->irq_mask |= ring->irq_enable_mask; |
| 723 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 724 | POSTING_READ(IMR); |
| 725 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 726 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 727 | } |
| 728 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 729 | static bool |
| 730 | i8xx_ring_get_irq(struct intel_ring_buffer *ring) |
| 731 | { |
| 732 | struct drm_device *dev = ring->dev; |
| 733 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 734 | unsigned long flags; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 735 | |
| 736 | if (!dev->irq_enabled) |
| 737 | return false; |
| 738 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 739 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 740 | if (ring->irq_refcount++ == 0) { |
| 741 | dev_priv->irq_mask &= ~ring->irq_enable_mask; |
| 742 | I915_WRITE16(IMR, dev_priv->irq_mask); |
| 743 | POSTING_READ16(IMR); |
| 744 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 745 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 746 | |
| 747 | return true; |
| 748 | } |
| 749 | |
| 750 | static void |
| 751 | i8xx_ring_put_irq(struct intel_ring_buffer *ring) |
| 752 | { |
| 753 | struct drm_device *dev = ring->dev; |
| 754 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 755 | unsigned long flags; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 756 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 757 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 758 | if (--ring->irq_refcount == 0) { |
| 759 | dev_priv->irq_mask |= ring->irq_enable_mask; |
| 760 | I915_WRITE16(IMR, dev_priv->irq_mask); |
| 761 | POSTING_READ16(IMR); |
| 762 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 763 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 764 | } |
| 765 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 766 | void intel_ring_setup_status_page(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 767 | { |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 768 | struct drm_device *dev = ring->dev; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 769 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 770 | u32 mmio = 0; |
| 771 | |
| 772 | /* The ring status page addresses are no longer next to the rest of |
| 773 | * the ring registers as of gen7. |
| 774 | */ |
| 775 | if (IS_GEN7(dev)) { |
| 776 | switch (ring->id) { |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 777 | case RCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 778 | mmio = RENDER_HWS_PGA_GEN7; |
| 779 | break; |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 780 | case BCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 781 | mmio = BLT_HWS_PGA_GEN7; |
| 782 | break; |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 783 | case VCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 784 | mmio = BSD_HWS_PGA_GEN7; |
| 785 | break; |
| 786 | } |
| 787 | } else if (IS_GEN6(ring->dev)) { |
| 788 | mmio = RING_HWS_PGA_GEN6(ring->mmio_base); |
| 789 | } else { |
| 790 | mmio = RING_HWS_PGA(ring->mmio_base); |
| 791 | } |
| 792 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 793 | I915_WRITE(mmio, (u32)ring->status_page.gfx_addr); |
| 794 | POSTING_READ(mmio); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 795 | } |
| 796 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 797 | static int |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 798 | bsd_ring_flush(struct intel_ring_buffer *ring, |
| 799 | u32 invalidate_domains, |
| 800 | u32 flush_domains) |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 801 | { |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 802 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 803 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 804 | ret = intel_ring_begin(ring, 2); |
| 805 | if (ret) |
| 806 | return ret; |
| 807 | |
| 808 | intel_ring_emit(ring, MI_FLUSH); |
| 809 | intel_ring_emit(ring, MI_NOOP); |
| 810 | intel_ring_advance(ring); |
| 811 | return 0; |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 812 | } |
| 813 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 814 | static int |
Daniel Vetter | 8620a3a | 2012-04-11 22:12:57 +0200 | [diff] [blame] | 815 | i9xx_add_request(struct intel_ring_buffer *ring, |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 816 | u32 *result) |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 817 | { |
| 818 | u32 seqno; |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 819 | int ret; |
| 820 | |
| 821 | ret = intel_ring_begin(ring, 4); |
| 822 | if (ret) |
| 823 | return ret; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 824 | |
Daniel Vetter | 53d227f | 2012-01-25 16:32:49 +0100 | [diff] [blame] | 825 | seqno = i915_gem_next_request_seqno(ring); |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 826 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [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); |
| 829 | intel_ring_emit(ring, seqno); |
| 830 | intel_ring_emit(ring, MI_USER_INTERRUPT); |
| 831 | intel_ring_advance(ring); |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 832 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 833 | *result = seqno; |
| 834 | return 0; |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 835 | } |
| 836 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 837 | static bool |
Ben Widawsky | 25c0630 | 2012-03-29 19:11:27 -0700 | [diff] [blame] | 838 | gen6_ring_get_irq(struct intel_ring_buffer *ring) |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 839 | { |
| 840 | struct drm_device *dev = ring->dev; |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 841 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 842 | unsigned long flags; |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 843 | |
| 844 | if (!dev->irq_enabled) |
| 845 | return false; |
| 846 | |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 847 | /* It looks like we need to prevent the gt from suspending while waiting |
| 848 | * for an notifiy irq, otherwise irqs seem to get lost on at least the |
| 849 | * blt/bsd rings on ivb. */ |
Daniel Vetter | 99ffa16 | 2012-01-25 14:04:00 +0100 | [diff] [blame] | 850 | gen6_gt_force_wake_get(dev_priv); |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 851 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 852 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 853 | if (ring->irq_refcount++ == 0) { |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 854 | if (IS_IVYBRIDGE(dev) && ring->id == RCS) |
| 855 | I915_WRITE_IMR(ring, ~(ring->irq_enable_mask | |
| 856 | GEN6_RENDER_L3_PARITY_ERROR)); |
| 857 | else |
| 858 | I915_WRITE_IMR(ring, ~ring->irq_enable_mask); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 859 | dev_priv->gt_irq_mask &= ~ring->irq_enable_mask; |
| 860 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 861 | POSTING_READ(GTIMR); |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 862 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 863 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 864 | |
| 865 | return true; |
| 866 | } |
| 867 | |
| 868 | static void |
Ben Widawsky | 25c0630 | 2012-03-29 19:11:27 -0700 | [diff] [blame] | 869 | gen6_ring_put_irq(struct intel_ring_buffer *ring) |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 870 | { |
| 871 | struct drm_device *dev = ring->dev; |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 872 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 873 | unsigned long flags; |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 874 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 875 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 876 | if (--ring->irq_refcount == 0) { |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 877 | if (IS_IVYBRIDGE(dev) && ring->id == RCS) |
| 878 | I915_WRITE_IMR(ring, ~GEN6_RENDER_L3_PARITY_ERROR); |
| 879 | else |
| 880 | I915_WRITE_IMR(ring, ~0); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 881 | dev_priv->gt_irq_mask |= ring->irq_enable_mask; |
| 882 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 883 | POSTING_READ(GTIMR); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 884 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 885 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 886 | |
Daniel Vetter | 99ffa16 | 2012-01-25 14:04:00 +0100 | [diff] [blame] | 887 | gen6_gt_force_wake_put(dev_priv); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 888 | } |
| 889 | |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 890 | static int |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 891 | i965_dispatch_execbuffer(struct intel_ring_buffer *ring, u32 offset, u32 length) |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 892 | { |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 893 | int ret; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 894 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 895 | ret = intel_ring_begin(ring, 2); |
| 896 | if (ret) |
| 897 | return ret; |
| 898 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 899 | intel_ring_emit(ring, |
Chris Wilson | 65f5687 | 2012-04-17 16:38:12 +0100 | [diff] [blame] | 900 | MI_BATCH_BUFFER_START | |
| 901 | MI_BATCH_GTT | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 902 | MI_BATCH_NON_SECURE_I965); |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 903 | intel_ring_emit(ring, offset); |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 904 | intel_ring_advance(ring); |
| 905 | |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 906 | return 0; |
| 907 | } |
| 908 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 909 | static int |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 910 | i830_dispatch_execbuffer(struct intel_ring_buffer *ring, |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 911 | u32 offset, u32 len) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 912 | { |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 913 | int ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 914 | |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 915 | ret = intel_ring_begin(ring, 4); |
| 916 | if (ret) |
| 917 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 918 | |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 919 | intel_ring_emit(ring, MI_BATCH_BUFFER); |
| 920 | intel_ring_emit(ring, offset | MI_BATCH_NON_SECURE); |
| 921 | intel_ring_emit(ring, offset + len - 8); |
| 922 | intel_ring_emit(ring, 0); |
| 923 | intel_ring_advance(ring); |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 924 | |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 925 | return 0; |
| 926 | } |
| 927 | |
| 928 | static int |
| 929 | i915_dispatch_execbuffer(struct intel_ring_buffer *ring, |
| 930 | u32 offset, u32 len) |
| 931 | { |
| 932 | int ret; |
| 933 | |
| 934 | ret = intel_ring_begin(ring, 2); |
| 935 | if (ret) |
| 936 | return ret; |
| 937 | |
Chris Wilson | 65f5687 | 2012-04-17 16:38:12 +0100 | [diff] [blame] | 938 | intel_ring_emit(ring, MI_BATCH_BUFFER_START | MI_BATCH_GTT); |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 939 | intel_ring_emit(ring, offset | MI_BATCH_NON_SECURE); |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 940 | intel_ring_advance(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 941 | |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 942 | return 0; |
| 943 | } |
| 944 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 945 | static void cleanup_status_page(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 946 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 947 | struct drm_i915_gem_object *obj; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 948 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 949 | obj = ring->status_page.obj; |
| 950 | if (obj == NULL) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 951 | return; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 952 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 953 | kunmap(obj->pages[0]); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 954 | i915_gem_object_unpin(obj); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 955 | drm_gem_object_unreference(&obj->base); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 956 | ring->status_page.obj = NULL; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 957 | } |
| 958 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 959 | static int init_status_page(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 960 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 961 | struct drm_device *dev = ring->dev; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 962 | struct drm_i915_gem_object *obj; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 963 | int ret; |
| 964 | |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 965 | obj = i915_gem_alloc_object(dev, 4096); |
| 966 | if (obj == NULL) { |
| 967 | DRM_ERROR("Failed to allocate status page\n"); |
| 968 | ret = -ENOMEM; |
| 969 | goto err; |
| 970 | } |
Chris Wilson | e4ffd17 | 2011-04-04 09:44:39 +0100 | [diff] [blame] | 971 | |
| 972 | i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 973 | |
Daniel Vetter | 75e9e91 | 2010-11-04 17:11:09 +0100 | [diff] [blame] | 974 | ret = i915_gem_object_pin(obj, 4096, true); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 975 | if (ret != 0) { |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 976 | goto err_unref; |
| 977 | } |
| 978 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 979 | ring->status_page.gfx_addr = obj->gtt_offset; |
| 980 | ring->status_page.page_addr = kmap(obj->pages[0]); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 981 | if (ring->status_page.page_addr == NULL) { |
Ben Widawsky | 2e6c21e | 2012-07-12 23:16:12 -0700 | [diff] [blame] | 982 | ret = -ENOMEM; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 983 | goto err_unpin; |
| 984 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 985 | ring->status_page.obj = obj; |
| 986 | memset(ring->status_page.page_addr, 0, PAGE_SIZE); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 987 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 988 | intel_ring_setup_status_page(ring); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 989 | DRM_DEBUG_DRIVER("%s hws offset: 0x%08x\n", |
| 990 | ring->name, ring->status_page.gfx_addr); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 991 | |
| 992 | return 0; |
| 993 | |
| 994 | err_unpin: |
| 995 | i915_gem_object_unpin(obj); |
| 996 | err_unref: |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 997 | drm_gem_object_unreference(&obj->base); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 998 | err: |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 999 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1000 | } |
| 1001 | |
Ben Widawsky | c43b563 | 2012-04-16 14:07:40 -0700 | [diff] [blame] | 1002 | static int intel_init_ring_buffer(struct drm_device *dev, |
| 1003 | struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1004 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1005 | struct drm_i915_gem_object *obj; |
Daniel Vetter | dd2757f | 2012-06-07 15:55:57 +0200 | [diff] [blame] | 1006 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1007 | int ret; |
| 1008 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1009 | ring->dev = dev; |
Chris Wilson | 23bc598 | 2010-09-29 16:10:57 +0100 | [diff] [blame] | 1010 | INIT_LIST_HEAD(&ring->active_list); |
| 1011 | INIT_LIST_HEAD(&ring->request_list); |
Chris Wilson | 6419340 | 2010-10-24 12:38:05 +0100 | [diff] [blame] | 1012 | INIT_LIST_HEAD(&ring->gpu_write_list); |
Daniel Vetter | dfc9ef2 | 2012-04-11 22:12:47 +0200 | [diff] [blame] | 1013 | ring->size = 32 * PAGE_SIZE; |
Chris Wilson | 0dc79fb | 2011-01-05 10:32:24 +0000 | [diff] [blame] | 1014 | |
Chris Wilson | b259f67 | 2011-03-29 13:19:09 +0100 | [diff] [blame] | 1015 | init_waitqueue_head(&ring->irq_queue); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1016 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1017 | if (I915_NEED_GFX_HWS(dev)) { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1018 | ret = init_status_page(ring); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1019 | if (ret) |
| 1020 | return ret; |
| 1021 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1022 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1023 | obj = i915_gem_alloc_object(dev, ring->size); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1024 | if (obj == NULL) { |
| 1025 | DRM_ERROR("Failed to allocate ringbuffer\n"); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1026 | ret = -ENOMEM; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1027 | goto err_hws; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1028 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1029 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1030 | ring->obj = obj; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1031 | |
Daniel Vetter | 75e9e91 | 2010-11-04 17:11:09 +0100 | [diff] [blame] | 1032 | ret = i915_gem_object_pin(obj, PAGE_SIZE, true); |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1033 | if (ret) |
| 1034 | goto err_unref; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1035 | |
Chris Wilson | 3eef891 | 2012-06-04 17:05:40 +0100 | [diff] [blame] | 1036 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
| 1037 | if (ret) |
| 1038 | goto err_unpin; |
| 1039 | |
Daniel Vetter | dd2757f | 2012-06-07 15:55:57 +0200 | [diff] [blame] | 1040 | ring->virtual_start = |
| 1041 | ioremap_wc(dev_priv->mm.gtt->gma_bus_addr + obj->gtt_offset, |
| 1042 | ring->size); |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1043 | if (ring->virtual_start == NULL) { |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1044 | DRM_ERROR("Failed to map ringbuffer.\n"); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1045 | ret = -EINVAL; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1046 | goto err_unpin; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1047 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1048 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1049 | ret = ring->init(ring); |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1050 | if (ret) |
| 1051 | goto err_unmap; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1052 | |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1053 | /* Workaround an erratum on the i830 which causes a hang if |
| 1054 | * the TAIL pointer points to within the last 2 cachelines |
| 1055 | * of the buffer. |
| 1056 | */ |
| 1057 | ring->effective_size = ring->size; |
Chris Wilson | 27c1cbd | 2012-04-09 13:59:46 +0100 | [diff] [blame] | 1058 | if (IS_I830(ring->dev) || IS_845G(ring->dev)) |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1059 | ring->effective_size -= 128; |
| 1060 | |
Chris Wilson | c584fe4 | 2010-10-29 18:15:52 +0100 | [diff] [blame] | 1061 | return 0; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1062 | |
| 1063 | err_unmap: |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1064 | iounmap(ring->virtual_start); |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1065 | err_unpin: |
| 1066 | i915_gem_object_unpin(obj); |
| 1067 | err_unref: |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1068 | drm_gem_object_unreference(&obj->base); |
| 1069 | ring->obj = NULL; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1070 | err_hws: |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1071 | cleanup_status_page(ring); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1072 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1073 | } |
| 1074 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1075 | void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1076 | { |
Chris Wilson | 33626e6 | 2010-10-29 16:18:36 +0100 | [diff] [blame] | 1077 | struct drm_i915_private *dev_priv; |
| 1078 | int ret; |
| 1079 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1080 | if (ring->obj == NULL) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1081 | return; |
| 1082 | |
Chris Wilson | 33626e6 | 2010-10-29 16:18:36 +0100 | [diff] [blame] | 1083 | /* Disable the ring buffer. The ring must be idle at this point */ |
| 1084 | dev_priv = ring->dev->dev_private; |
Ben Widawsky | 96f298a | 2011-03-19 18:14:27 -0700 | [diff] [blame] | 1085 | ret = intel_wait_ring_idle(ring); |
Chris Wilson | 29ee399 | 2011-01-24 16:35:42 +0000 | [diff] [blame] | 1086 | if (ret) |
| 1087 | DRM_ERROR("failed to quiesce %s whilst cleaning up: %d\n", |
| 1088 | ring->name, ret); |
| 1089 | |
Chris Wilson | 33626e6 | 2010-10-29 16:18:36 +0100 | [diff] [blame] | 1090 | I915_WRITE_CTL(ring, 0); |
| 1091 | |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1092 | iounmap(ring->virtual_start); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1093 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1094 | i915_gem_object_unpin(ring->obj); |
| 1095 | drm_gem_object_unreference(&ring->obj->base); |
| 1096 | ring->obj = NULL; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1097 | |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 1098 | if (ring->cleanup) |
| 1099 | ring->cleanup(ring); |
| 1100 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1101 | cleanup_status_page(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1102 | } |
| 1103 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1104 | static int intel_wrap_ring_buffer(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1105 | { |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1106 | uint32_t __iomem *virt; |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1107 | int rem = ring->size - ring->tail; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1108 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1109 | if (ring->space < rem) { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1110 | int ret = intel_wait_ring_buffer(ring, rem); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1111 | if (ret) |
| 1112 | return ret; |
| 1113 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1114 | |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1115 | virt = ring->virtual_start + ring->tail; |
| 1116 | rem /= 4; |
| 1117 | while (rem--) |
| 1118 | iowrite32(MI_NOOP, virt++); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1119 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1120 | ring->tail = 0; |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 1121 | ring->space = ring_space(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1122 | |
| 1123 | return 0; |
| 1124 | } |
| 1125 | |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1126 | static int intel_ring_wait_seqno(struct intel_ring_buffer *ring, u32 seqno) |
| 1127 | { |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1128 | int ret; |
| 1129 | |
Ben Widawsky | 199b2bc | 2012-05-24 15:03:11 -0700 | [diff] [blame] | 1130 | ret = i915_wait_seqno(ring, seqno); |
Ben Widawsky | b2da9fe | 2012-04-26 16:02:58 -0700 | [diff] [blame] | 1131 | if (!ret) |
| 1132 | i915_gem_retire_requests_ring(ring); |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1133 | |
| 1134 | return ret; |
| 1135 | } |
| 1136 | |
| 1137 | static int intel_ring_wait_request(struct intel_ring_buffer *ring, int n) |
| 1138 | { |
| 1139 | struct drm_i915_gem_request *request; |
| 1140 | u32 seqno = 0; |
| 1141 | int ret; |
| 1142 | |
| 1143 | i915_gem_retire_requests_ring(ring); |
| 1144 | |
| 1145 | if (ring->last_retired_head != -1) { |
| 1146 | ring->head = ring->last_retired_head; |
| 1147 | ring->last_retired_head = -1; |
| 1148 | ring->space = ring_space(ring); |
| 1149 | if (ring->space >= n) |
| 1150 | return 0; |
| 1151 | } |
| 1152 | |
| 1153 | list_for_each_entry(request, &ring->request_list, list) { |
| 1154 | int space; |
| 1155 | |
| 1156 | if (request->tail == -1) |
| 1157 | continue; |
| 1158 | |
| 1159 | space = request->tail - (ring->tail + 8); |
| 1160 | if (space < 0) |
| 1161 | space += ring->size; |
| 1162 | if (space >= n) { |
| 1163 | seqno = request->seqno; |
| 1164 | break; |
| 1165 | } |
| 1166 | |
| 1167 | /* Consume this request in case we need more space than |
| 1168 | * is available and so need to prevent a race between |
| 1169 | * updating last_retired_head and direct reads of |
| 1170 | * I915_RING_HEAD. It also provides a nice sanity check. |
| 1171 | */ |
| 1172 | request->tail = -1; |
| 1173 | } |
| 1174 | |
| 1175 | if (seqno == 0) |
| 1176 | return -ENOSPC; |
| 1177 | |
| 1178 | ret = intel_ring_wait_seqno(ring, seqno); |
| 1179 | if (ret) |
| 1180 | return ret; |
| 1181 | |
| 1182 | if (WARN_ON(ring->last_retired_head == -1)) |
| 1183 | return -ENOSPC; |
| 1184 | |
| 1185 | ring->head = ring->last_retired_head; |
| 1186 | ring->last_retired_head = -1; |
| 1187 | ring->space = ring_space(ring); |
| 1188 | if (WARN_ON(ring->space < n)) |
| 1189 | return -ENOSPC; |
| 1190 | |
| 1191 | return 0; |
| 1192 | } |
| 1193 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1194 | int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1195 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1196 | struct drm_device *dev = ring->dev; |
Zou Nan hai | cae5852 | 2010-11-09 17:17:32 +0800 | [diff] [blame] | 1197 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1198 | unsigned long end; |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1199 | int ret; |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 1200 | |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1201 | ret = intel_ring_wait_request(ring, n); |
| 1202 | if (ret != -ENOSPC) |
| 1203 | return ret; |
| 1204 | |
Chris Wilson | db53a30 | 2011-02-03 11:57:46 +0000 | [diff] [blame] | 1205 | trace_i915_ring_wait_begin(ring); |
Daniel Vetter | 63ed2cb | 2012-04-23 16:50:50 +0200 | [diff] [blame] | 1206 | /* With GEM the hangcheck timer should kick us out of the loop, |
| 1207 | * leaving it early runs the risk of corrupting GEM state (due |
| 1208 | * to running on almost untested codepaths). But on resume |
| 1209 | * timers don't work yet, so prevent a complete hang in that |
| 1210 | * case by choosing an insanely large timeout. */ |
| 1211 | end = jiffies + 60 * HZ; |
Daniel Vetter | e6bfaf8 | 2011-12-14 13:56:59 +0100 | [diff] [blame] | 1212 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1213 | do { |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 1214 | ring->head = I915_READ_HEAD(ring); |
| 1215 | ring->space = ring_space(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1216 | if (ring->space >= n) { |
Chris Wilson | db53a30 | 2011-02-03 11:57:46 +0000 | [diff] [blame] | 1217 | trace_i915_ring_wait_end(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1218 | return 0; |
| 1219 | } |
| 1220 | |
| 1221 | if (dev->primary->master) { |
| 1222 | struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv; |
| 1223 | if (master_priv->sarea_priv) |
| 1224 | master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT; |
| 1225 | } |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1226 | |
Chris Wilson | e60a0b1 | 2010-10-13 10:09:14 +0100 | [diff] [blame] | 1227 | msleep(1); |
Daniel Vetter | d6b2c79 | 2012-07-04 22:54:13 +0200 | [diff] [blame] | 1228 | |
| 1229 | ret = i915_gem_check_wedge(dev_priv, dev_priv->mm.interruptible); |
| 1230 | if (ret) |
| 1231 | return ret; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1232 | } while (!time_after(jiffies, end)); |
Chris Wilson | db53a30 | 2011-02-03 11:57:46 +0000 | [diff] [blame] | 1233 | trace_i915_ring_wait_end(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1234 | return -EBUSY; |
| 1235 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1236 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1237 | int intel_ring_begin(struct intel_ring_buffer *ring, |
| 1238 | int num_dwords) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1239 | { |
Daniel Vetter | de2b998 | 2012-07-04 22:52:50 +0200 | [diff] [blame] | 1240 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
Zou Nan hai | be26a10 | 2010-06-12 17:40:24 +0800 | [diff] [blame] | 1241 | int n = 4*num_dwords; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1242 | int ret; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1243 | |
Daniel Vetter | de2b998 | 2012-07-04 22:52:50 +0200 | [diff] [blame] | 1244 | ret = i915_gem_check_wedge(dev_priv, dev_priv->mm.interruptible); |
| 1245 | if (ret) |
| 1246 | return ret; |
Chris Wilson | 21dd373 | 2011-01-26 15:55:56 +0000 | [diff] [blame] | 1247 | |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1248 | if (unlikely(ring->tail + n > ring->effective_size)) { |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1249 | ret = intel_wrap_ring_buffer(ring); |
| 1250 | if (unlikely(ret)) |
| 1251 | return ret; |
| 1252 | } |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1253 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1254 | if (unlikely(ring->space < n)) { |
| 1255 | ret = intel_wait_ring_buffer(ring, n); |
| 1256 | if (unlikely(ret)) |
| 1257 | return ret; |
| 1258 | } |
Chris Wilson | d97ed33 | 2010-08-04 15:18:13 +0100 | [diff] [blame] | 1259 | |
| 1260 | ring->space -= n; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1261 | return 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1262 | } |
| 1263 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1264 | void intel_ring_advance(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1265 | { |
Daniel Vetter | e5eb3d6 | 2012-05-03 14:48:16 +0200 | [diff] [blame] | 1266 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
| 1267 | |
Chris Wilson | d97ed33 | 2010-08-04 15:18:13 +0100 | [diff] [blame] | 1268 | ring->tail &= ring->size - 1; |
Daniel Vetter | e5eb3d6 | 2012-05-03 14:48:16 +0200 | [diff] [blame] | 1269 | if (dev_priv->stop_rings & intel_ring_flag(ring)) |
| 1270 | return; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1271 | ring->write_tail(ring, ring->tail); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1272 | } |
| 1273 | |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1274 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1275 | static void gen6_bsd_ring_write_tail(struct intel_ring_buffer *ring, |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 1276 | u32 value) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1277 | { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1278 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1279 | |
| 1280 | /* Every tail move must follow the sequence below */ |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1281 | |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1282 | /* Disable notification that the ring is IDLE. The GT |
| 1283 | * will then assume that it is busy and bring it out of rc6. |
| 1284 | */ |
| 1285 | I915_WRITE(GEN6_BSD_SLEEP_PSMI_CONTROL, |
| 1286 | _MASKED_BIT_ENABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); |
| 1287 | |
| 1288 | /* Clear the context id. Here be magic! */ |
| 1289 | I915_WRITE64(GEN6_BSD_RNCID, 0x0); |
| 1290 | |
| 1291 | /* 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] | 1292 | if (wait_for((I915_READ(GEN6_BSD_SLEEP_PSMI_CONTROL) & |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1293 | GEN6_BSD_SLEEP_INDICATOR) == 0, |
| 1294 | 50)) |
| 1295 | 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] | 1296 | |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1297 | /* Now that the ring is fully powered up, update the tail */ |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1298 | I915_WRITE_TAIL(ring, value); |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1299 | POSTING_READ(RING_TAIL(ring->mmio_base)); |
| 1300 | |
| 1301 | /* Let the ring send IDLE messages to the GT again, |
| 1302 | * and so let it sleep to conserve power when idle. |
| 1303 | */ |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1304 | I915_WRITE(GEN6_BSD_SLEEP_PSMI_CONTROL, |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1305 | _MASKED_BIT_DISABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1306 | } |
| 1307 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1308 | static int gen6_ring_flush(struct intel_ring_buffer *ring, |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1309 | u32 invalidate, u32 flush) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1310 | { |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1311 | uint32_t cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1312 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1313 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1314 | ret = intel_ring_begin(ring, 4); |
| 1315 | if (ret) |
| 1316 | return ret; |
| 1317 | |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1318 | cmd = MI_FLUSH_DW; |
| 1319 | if (invalidate & I915_GEM_GPU_DOMAINS) |
| 1320 | cmd |= MI_INVALIDATE_TLB | MI_INVALIDATE_BSD; |
| 1321 | intel_ring_emit(ring, cmd); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1322 | intel_ring_emit(ring, 0); |
| 1323 | intel_ring_emit(ring, 0); |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1324 | intel_ring_emit(ring, MI_NOOP); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1325 | intel_ring_advance(ring); |
| 1326 | return 0; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1327 | } |
| 1328 | |
| 1329 | static int |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1330 | gen6_ring_dispatch_execbuffer(struct intel_ring_buffer *ring, |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 1331 | u32 offset, u32 len) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1332 | { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1333 | int ret; |
Chris Wilson | ab6f8e3 | 2010-09-19 17:53:44 +0100 | [diff] [blame] | 1334 | |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1335 | ret = intel_ring_begin(ring, 2); |
| 1336 | if (ret) |
| 1337 | return ret; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1338 | |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1339 | intel_ring_emit(ring, MI_BATCH_BUFFER_START | MI_BATCH_NON_SECURE_I965); |
| 1340 | /* bit0-7 is the length on GEN6+ */ |
| 1341 | intel_ring_emit(ring, offset); |
| 1342 | intel_ring_advance(ring); |
Chris Wilson | ab6f8e3 | 2010-09-19 17:53:44 +0100 | [diff] [blame] | 1343 | |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1344 | return 0; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1345 | } |
| 1346 | |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1347 | /* Blitter support (SandyBridge+) */ |
| 1348 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1349 | static int blt_ring_flush(struct intel_ring_buffer *ring, |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1350 | u32 invalidate, u32 flush) |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 1351 | { |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1352 | uint32_t cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1353 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1354 | |
Daniel Vetter | 6a233c7 | 2011-12-14 13:57:07 +0100 | [diff] [blame] | 1355 | ret = intel_ring_begin(ring, 4); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1356 | if (ret) |
| 1357 | return ret; |
| 1358 | |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1359 | cmd = MI_FLUSH_DW; |
| 1360 | if (invalidate & I915_GEM_DOMAIN_RENDER) |
| 1361 | cmd |= MI_INVALIDATE_TLB; |
| 1362 | intel_ring_emit(ring, cmd); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1363 | intel_ring_emit(ring, 0); |
| 1364 | intel_ring_emit(ring, 0); |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1365 | intel_ring_emit(ring, MI_NOOP); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1366 | intel_ring_advance(ring); |
| 1367 | return 0; |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 1368 | } |
| 1369 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1370 | int intel_init_render_ring_buffer(struct drm_device *dev) |
| 1371 | { |
| 1372 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1373 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1374 | |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1375 | ring->name = "render ring"; |
| 1376 | ring->id = RCS; |
| 1377 | ring->mmio_base = RENDER_RING_BASE; |
| 1378 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1379 | if (INTEL_INFO(dev)->gen >= 6) { |
| 1380 | ring->add_request = gen6_add_request; |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 1381 | ring->flush = gen6_render_ring_flush; |
Ben Widawsky | 25c0630 | 2012-03-29 19:11:27 -0700 | [diff] [blame] | 1382 | ring->irq_get = gen6_ring_get_irq; |
| 1383 | ring->irq_put = gen6_ring_put_irq; |
Daniel Vetter | 6a848cc | 2012-04-11 22:12:46 +0200 | [diff] [blame] | 1384 | ring->irq_enable_mask = GT_USER_INTERRUPT; |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 1385 | ring->get_seqno = gen6_ring_get_seqno; |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 1386 | ring->sync_to = gen6_ring_sync; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1387 | ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_INVALID; |
| 1388 | ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_RV; |
| 1389 | ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_RB; |
| 1390 | ring->signal_mbox[0] = GEN6_VRSYNC; |
| 1391 | ring->signal_mbox[1] = GEN6_BRSYNC; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 1392 | } else if (IS_GEN5(dev)) { |
| 1393 | ring->add_request = pc_render_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 1394 | ring->flush = gen4_render_ring_flush; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 1395 | ring->get_seqno = pc_render_get_seqno; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1396 | ring->irq_get = gen5_ring_get_irq; |
| 1397 | ring->irq_put = gen5_ring_put_irq; |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 1398 | ring->irq_enable_mask = GT_USER_INTERRUPT | GT_PIPE_NOTIFY; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1399 | } else { |
Daniel Vetter | 8620a3a | 2012-04-11 22:12:57 +0200 | [diff] [blame] | 1400 | ring->add_request = i9xx_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 1401 | if (INTEL_INFO(dev)->gen < 4) |
| 1402 | ring->flush = gen2_render_ring_flush; |
| 1403 | else |
| 1404 | ring->flush = gen4_render_ring_flush; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1405 | ring->get_seqno = ring_get_seqno; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1406 | if (IS_GEN2(dev)) { |
| 1407 | ring->irq_get = i8xx_ring_get_irq; |
| 1408 | ring->irq_put = i8xx_ring_put_irq; |
| 1409 | } else { |
| 1410 | ring->irq_get = i9xx_ring_get_irq; |
| 1411 | ring->irq_put = i9xx_ring_put_irq; |
| 1412 | } |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 1413 | ring->irq_enable_mask = I915_USER_INTERRUPT; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1414 | } |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1415 | ring->write_tail = ring_write_tail; |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 1416 | if (INTEL_INFO(dev)->gen >= 6) |
| 1417 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
| 1418 | else if (INTEL_INFO(dev)->gen >= 4) |
| 1419 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
| 1420 | else if (IS_I830(dev) || IS_845G(dev)) |
| 1421 | ring->dispatch_execbuffer = i830_dispatch_execbuffer; |
| 1422 | else |
| 1423 | ring->dispatch_execbuffer = i915_dispatch_execbuffer; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1424 | ring->init = init_render_ring; |
| 1425 | ring->cleanup = render_ring_cleanup; |
| 1426 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1427 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1428 | if (!I915_NEED_GFX_HWS(dev)) { |
| 1429 | ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr; |
| 1430 | memset(ring->status_page.page_addr, 0, PAGE_SIZE); |
| 1431 | } |
| 1432 | |
| 1433 | return intel_init_ring_buffer(dev, ring); |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1434 | } |
| 1435 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1436 | int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size) |
| 1437 | { |
| 1438 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 1439 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
| 1440 | |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1441 | ring->name = "render ring"; |
| 1442 | ring->id = RCS; |
| 1443 | ring->mmio_base = RENDER_RING_BASE; |
| 1444 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1445 | if (INTEL_INFO(dev)->gen >= 6) { |
Daniel Vetter | b4178f8 | 2012-04-11 22:12:51 +0200 | [diff] [blame] | 1446 | /* non-kms not supported on gen6+ */ |
| 1447 | return -ENODEV; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1448 | } |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 1449 | |
| 1450 | /* Note: gem is not supported on gen5/ilk without kms (the corresponding |
| 1451 | * gem_init ioctl returns with -ENODEV). Hence we do not need to set up |
| 1452 | * the special gen5 functions. */ |
| 1453 | ring->add_request = i9xx_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 1454 | if (INTEL_INFO(dev)->gen < 4) |
| 1455 | ring->flush = gen2_render_ring_flush; |
| 1456 | else |
| 1457 | ring->flush = gen4_render_ring_flush; |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 1458 | ring->get_seqno = ring_get_seqno; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1459 | if (IS_GEN2(dev)) { |
| 1460 | ring->irq_get = i8xx_ring_get_irq; |
| 1461 | ring->irq_put = i8xx_ring_put_irq; |
| 1462 | } else { |
| 1463 | ring->irq_get = i9xx_ring_get_irq; |
| 1464 | ring->irq_put = i9xx_ring_put_irq; |
| 1465 | } |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 1466 | ring->irq_enable_mask = I915_USER_INTERRUPT; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1467 | ring->write_tail = ring_write_tail; |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 1468 | if (INTEL_INFO(dev)->gen >= 4) |
| 1469 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
| 1470 | else if (IS_I830(dev) || IS_845G(dev)) |
| 1471 | ring->dispatch_execbuffer = i830_dispatch_execbuffer; |
| 1472 | else |
| 1473 | ring->dispatch_execbuffer = i915_dispatch_execbuffer; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1474 | ring->init = init_render_ring; |
| 1475 | ring->cleanup = render_ring_cleanup; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1476 | |
Keith Packard | f323470 | 2011-07-22 10:44:39 -0700 | [diff] [blame] | 1477 | if (!I915_NEED_GFX_HWS(dev)) |
| 1478 | ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr; |
| 1479 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1480 | ring->dev = dev; |
| 1481 | INIT_LIST_HEAD(&ring->active_list); |
| 1482 | INIT_LIST_HEAD(&ring->request_list); |
| 1483 | INIT_LIST_HEAD(&ring->gpu_write_list); |
| 1484 | |
| 1485 | ring->size = size; |
| 1486 | ring->effective_size = ring->size; |
| 1487 | if (IS_I830(ring->dev)) |
| 1488 | ring->effective_size -= 128; |
| 1489 | |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1490 | ring->virtual_start = ioremap_wc(start, size); |
| 1491 | if (ring->virtual_start == NULL) { |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1492 | DRM_ERROR("can not ioremap virtual address for" |
| 1493 | " ring buffer\n"); |
| 1494 | return -ENOMEM; |
| 1495 | } |
| 1496 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1497 | return 0; |
| 1498 | } |
| 1499 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1500 | int intel_init_bsd_ring_buffer(struct drm_device *dev) |
| 1501 | { |
| 1502 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1503 | struct intel_ring_buffer *ring = &dev_priv->ring[VCS]; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1504 | |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1505 | ring->name = "bsd ring"; |
| 1506 | ring->id = VCS; |
| 1507 | |
Daniel Vetter | 0fd2c20 | 2012-04-11 22:12:55 +0200 | [diff] [blame] | 1508 | ring->write_tail = ring_write_tail; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1509 | if (IS_GEN6(dev) || IS_GEN7(dev)) { |
| 1510 | ring->mmio_base = GEN6_BSD_RING_BASE; |
Daniel Vetter | 0fd2c20 | 2012-04-11 22:12:55 +0200 | [diff] [blame] | 1511 | /* gen6 bsd needs a special wa for tail updates */ |
| 1512 | if (IS_GEN6(dev)) |
| 1513 | ring->write_tail = gen6_bsd_ring_write_tail; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1514 | ring->flush = gen6_ring_flush; |
| 1515 | ring->add_request = gen6_add_request; |
| 1516 | ring->get_seqno = gen6_ring_get_seqno; |
| 1517 | ring->irq_enable_mask = GEN6_BSD_USER_INTERRUPT; |
| 1518 | ring->irq_get = gen6_ring_get_irq; |
| 1519 | ring->irq_put = gen6_ring_put_irq; |
| 1520 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 1521 | ring->sync_to = gen6_ring_sync; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1522 | ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_VR; |
| 1523 | ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_INVALID; |
| 1524 | ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_VB; |
| 1525 | ring->signal_mbox[0] = GEN6_RVSYNC; |
| 1526 | ring->signal_mbox[1] = GEN6_BVSYNC; |
| 1527 | } else { |
| 1528 | ring->mmio_base = BSD_RING_BASE; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1529 | ring->flush = bsd_ring_flush; |
Daniel Vetter | 8620a3a | 2012-04-11 22:12:57 +0200 | [diff] [blame] | 1530 | ring->add_request = i9xx_add_request; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1531 | ring->get_seqno = ring_get_seqno; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1532 | if (IS_GEN5(dev)) { |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 1533 | ring->irq_enable_mask = GT_BSD_USER_INTERRUPT; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1534 | ring->irq_get = gen5_ring_get_irq; |
| 1535 | ring->irq_put = gen5_ring_put_irq; |
| 1536 | } else { |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 1537 | ring->irq_enable_mask = I915_BSD_USER_INTERRUPT; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1538 | ring->irq_get = i9xx_ring_get_irq; |
| 1539 | ring->irq_put = i9xx_ring_put_irq; |
| 1540 | } |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 1541 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1542 | } |
| 1543 | ring->init = init_ring_common; |
| 1544 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1545 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1546 | return intel_init_ring_buffer(dev, ring); |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1547 | } |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1548 | |
| 1549 | int intel_init_blt_ring_buffer(struct drm_device *dev) |
| 1550 | { |
| 1551 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1552 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1553 | |
Daniel Vetter | 3535d9d | 2012-04-11 22:12:50 +0200 | [diff] [blame] | 1554 | ring->name = "blitter ring"; |
| 1555 | ring->id = BCS; |
| 1556 | |
| 1557 | ring->mmio_base = BLT_RING_BASE; |
| 1558 | ring->write_tail = ring_write_tail; |
| 1559 | ring->flush = blt_ring_flush; |
| 1560 | ring->add_request = gen6_add_request; |
| 1561 | ring->get_seqno = gen6_ring_get_seqno; |
| 1562 | ring->irq_enable_mask = GEN6_BLITTER_USER_INTERRUPT; |
| 1563 | ring->irq_get = gen6_ring_get_irq; |
| 1564 | ring->irq_put = gen6_ring_put_irq; |
| 1565 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 1566 | ring->sync_to = gen6_ring_sync; |
Daniel Vetter | 3535d9d | 2012-04-11 22:12:50 +0200 | [diff] [blame] | 1567 | ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_BR; |
| 1568 | ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_BV; |
| 1569 | ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_INVALID; |
| 1570 | ring->signal_mbox[0] = GEN6_RBSYNC; |
| 1571 | ring->signal_mbox[1] = GEN6_VBSYNC; |
| 1572 | ring->init = init_ring_common; |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1573 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1574 | return intel_init_ring_buffer(dev, ring); |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1575 | } |