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 | |
| 30 | #include "drmP.h" |
| 31 | #include "drm.h" |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 32 | #include "i915_drv.h" |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 33 | #include "i915_drm.h" |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 34 | #include "i915_trace.h" |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 35 | #include "intel_drv.h" |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 36 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 37 | /* |
| 38 | * 965+ support PIPE_CONTROL commands, which provide finer grained control |
| 39 | * over cache flushing. |
| 40 | */ |
| 41 | struct pipe_control { |
| 42 | struct drm_i915_gem_object *obj; |
| 43 | volatile u32 *cpu_page; |
| 44 | u32 gtt_offset; |
| 45 | }; |
| 46 | |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 47 | static inline int ring_space(struct intel_ring_buffer *ring) |
| 48 | { |
| 49 | int space = (ring->head & HEAD_ADDR) - (ring->tail + 8); |
| 50 | if (space < 0) |
| 51 | space += ring->size; |
| 52 | return space; |
| 53 | } |
| 54 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 55 | static int |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 56 | gen2_render_ring_flush(struct intel_ring_buffer *ring, |
| 57 | u32 invalidate_domains, |
| 58 | u32 flush_domains) |
| 59 | { |
| 60 | u32 cmd; |
| 61 | int ret; |
| 62 | |
| 63 | cmd = MI_FLUSH; |
Daniel Vetter | 31b14c9 | 2012-04-19 16:45:22 +0200 | [diff] [blame] | 64 | if (((invalidate_domains|flush_domains) & I915_GEM_DOMAIN_RENDER) == 0) |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 65 | cmd |= MI_NO_WRITE_FLUSH; |
| 66 | |
| 67 | if (invalidate_domains & I915_GEM_DOMAIN_SAMPLER) |
| 68 | cmd |= MI_READ_FLUSH; |
| 69 | |
| 70 | ret = intel_ring_begin(ring, 2); |
| 71 | if (ret) |
| 72 | return ret; |
| 73 | |
| 74 | intel_ring_emit(ring, cmd); |
| 75 | intel_ring_emit(ring, MI_NOOP); |
| 76 | intel_ring_advance(ring); |
| 77 | |
| 78 | return 0; |
| 79 | } |
| 80 | |
| 81 | static int |
| 82 | gen4_render_ring_flush(struct intel_ring_buffer *ring, |
| 83 | u32 invalidate_domains, |
| 84 | u32 flush_domains) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 85 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 86 | struct drm_device *dev = ring->dev; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 87 | u32 cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 88 | int ret; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 89 | |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 90 | /* |
| 91 | * read/write caches: |
| 92 | * |
| 93 | * I915_GEM_DOMAIN_RENDER is always invalidated, but is |
| 94 | * only flushed if MI_NO_WRITE_FLUSH is unset. On 965, it is |
| 95 | * also flushed at 2d versus 3d pipeline switches. |
| 96 | * |
| 97 | * read-only caches: |
| 98 | * |
| 99 | * I915_GEM_DOMAIN_SAMPLER is flushed on pre-965 if |
| 100 | * MI_READ_FLUSH is set, and is always flushed on 965. |
| 101 | * |
| 102 | * I915_GEM_DOMAIN_COMMAND may not exist? |
| 103 | * |
| 104 | * I915_GEM_DOMAIN_INSTRUCTION, which exists on 965, is |
| 105 | * invalidated when MI_EXE_FLUSH is set. |
| 106 | * |
| 107 | * I915_GEM_DOMAIN_VERTEX, which exists on 965, is |
| 108 | * invalidated with every MI_FLUSH. |
| 109 | * |
| 110 | * TLBs: |
| 111 | * |
| 112 | * On 965, TLBs associated with I915_GEM_DOMAIN_COMMAND |
| 113 | * and I915_GEM_DOMAIN_CPU in are invalidated at PTE write and |
| 114 | * I915_GEM_DOMAIN_RENDER and I915_GEM_DOMAIN_SAMPLER |
| 115 | * are flushed at any MI_FLUSH. |
| 116 | */ |
| 117 | |
| 118 | cmd = MI_FLUSH | MI_NO_WRITE_FLUSH; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 119 | if ((invalidate_domains|flush_domains) & I915_GEM_DOMAIN_RENDER) |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 120 | cmd &= ~MI_NO_WRITE_FLUSH; |
Chris Wilson | 36d527d | 2011-03-19 22:26:49 +0000 | [diff] [blame] | 121 | if (invalidate_domains & I915_GEM_DOMAIN_INSTRUCTION) |
| 122 | cmd |= MI_EXE_FLUSH; |
| 123 | |
| 124 | if (invalidate_domains & I915_GEM_DOMAIN_COMMAND && |
| 125 | (IS_G4X(dev) || IS_GEN5(dev))) |
| 126 | cmd |= MI_INVALIDATE_ISP; |
| 127 | |
| 128 | ret = intel_ring_begin(ring, 2); |
| 129 | if (ret) |
| 130 | return ret; |
| 131 | |
| 132 | intel_ring_emit(ring, cmd); |
| 133 | intel_ring_emit(ring, MI_NOOP); |
| 134 | intel_ring_advance(ring); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 135 | |
| 136 | return 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 137 | } |
| 138 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 139 | /** |
| 140 | * Emits a PIPE_CONTROL with a non-zero post-sync operation, for |
| 141 | * implementing two workarounds on gen6. From section 1.4.7.1 |
| 142 | * "PIPE_CONTROL" of the Sandy Bridge PRM volume 2 part 1: |
| 143 | * |
| 144 | * [DevSNB-C+{W/A}] Before any depth stall flush (including those |
| 145 | * produced by non-pipelined state commands), software needs to first |
| 146 | * send a PIPE_CONTROL with no bits set except Post-Sync Operation != |
| 147 | * 0. |
| 148 | * |
| 149 | * [Dev-SNB{W/A}]: Before a PIPE_CONTROL with Write Cache Flush Enable |
| 150 | * =1, a PIPE_CONTROL with any non-zero post-sync-op is required. |
| 151 | * |
| 152 | * And the workaround for these two requires this workaround first: |
| 153 | * |
| 154 | * [Dev-SNB{W/A}]: Pipe-control with CS-stall bit set must be sent |
| 155 | * BEFORE the pipe-control with a post-sync op and no write-cache |
| 156 | * flushes. |
| 157 | * |
| 158 | * And this last workaround is tricky because of the requirements on |
| 159 | * that bit. From section 1.4.7.2.3 "Stall" of the Sandy Bridge PRM |
| 160 | * volume 2 part 1: |
| 161 | * |
| 162 | * "1 of the following must also be set: |
| 163 | * - Render Target Cache Flush Enable ([12] of DW1) |
| 164 | * - Depth Cache Flush Enable ([0] of DW1) |
| 165 | * - Stall at Pixel Scoreboard ([1] of DW1) |
| 166 | * - Depth Stall ([13] of DW1) |
| 167 | * - Post-Sync Operation ([13] of DW1) |
| 168 | * - Notify Enable ([8] of DW1)" |
| 169 | * |
| 170 | * The cache flushes require the workaround flush that triggered this |
| 171 | * one, so we can't use it. Depth stall would trigger the same. |
| 172 | * Post-sync nonzero is what triggered this second workaround, so we |
| 173 | * can't use that one either. Notify enable is IRQs, which aren't |
| 174 | * really our business. That leaves only stall at scoreboard. |
| 175 | */ |
| 176 | static int |
| 177 | intel_emit_post_sync_nonzero_flush(struct intel_ring_buffer *ring) |
| 178 | { |
| 179 | struct pipe_control *pc = ring->private; |
| 180 | u32 scratch_addr = pc->gtt_offset + 128; |
| 181 | int ret; |
| 182 | |
| 183 | |
| 184 | ret = intel_ring_begin(ring, 6); |
| 185 | if (ret) |
| 186 | return ret; |
| 187 | |
| 188 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); |
| 189 | intel_ring_emit(ring, PIPE_CONTROL_CS_STALL | |
| 190 | PIPE_CONTROL_STALL_AT_SCOREBOARD); |
| 191 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */ |
| 192 | intel_ring_emit(ring, 0); /* low dword */ |
| 193 | intel_ring_emit(ring, 0); /* high dword */ |
| 194 | intel_ring_emit(ring, MI_NOOP); |
| 195 | intel_ring_advance(ring); |
| 196 | |
| 197 | ret = intel_ring_begin(ring, 6); |
| 198 | if (ret) |
| 199 | return ret; |
| 200 | |
| 201 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); |
| 202 | intel_ring_emit(ring, PIPE_CONTROL_QW_WRITE); |
| 203 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); /* address */ |
| 204 | intel_ring_emit(ring, 0); |
| 205 | intel_ring_emit(ring, 0); |
| 206 | intel_ring_emit(ring, MI_NOOP); |
| 207 | intel_ring_advance(ring); |
| 208 | |
| 209 | return 0; |
| 210 | } |
| 211 | |
| 212 | static int |
| 213 | gen6_render_ring_flush(struct intel_ring_buffer *ring, |
| 214 | u32 invalidate_domains, u32 flush_domains) |
| 215 | { |
| 216 | u32 flags = 0; |
| 217 | struct pipe_control *pc = ring->private; |
| 218 | u32 scratch_addr = pc->gtt_offset + 128; |
| 219 | int ret; |
| 220 | |
| 221 | /* Force SNB workarounds for PIPE_CONTROL flushes */ |
Daniel Vetter | 97f209b | 2012-06-28 09:48:42 +0200 | [diff] [blame] | 222 | ret = intel_emit_post_sync_nonzero_flush(ring); |
| 223 | if (ret) |
| 224 | return ret; |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 225 | |
| 226 | /* Just flush everything. Experiments have shown that reducing the |
| 227 | * number of bits based on the write domains has little performance |
| 228 | * impact. |
| 229 | */ |
| 230 | flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; |
Ben Widawsky | cc0f639 | 2012-06-04 14:42:49 -0700 | [diff] [blame] | 231 | flags |= PIPE_CONTROL_TLB_INVALIDATE; |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 232 | flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; |
| 233 | flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; |
| 234 | flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; |
| 235 | flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; |
| 236 | flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; |
| 237 | flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; |
Daniel Vetter | 97f209b | 2012-06-28 09:48:42 +0200 | [diff] [blame] | 238 | /* |
| 239 | * Ensure that any following seqno writes only happen when the render |
| 240 | * cache is indeed flushed (but only if the caller actually wants that). |
| 241 | */ |
| 242 | if (flush_domains) |
| 243 | flags |= PIPE_CONTROL_CS_STALL; |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 244 | |
| 245 | ret = intel_ring_begin(ring, 6); |
| 246 | if (ret) |
| 247 | return ret; |
| 248 | |
| 249 | intel_ring_emit(ring, GFX_OP_PIPE_CONTROL(5)); |
| 250 | intel_ring_emit(ring, flags); |
| 251 | intel_ring_emit(ring, scratch_addr | PIPE_CONTROL_GLOBAL_GTT); |
| 252 | intel_ring_emit(ring, 0); /* lower dword */ |
| 253 | intel_ring_emit(ring, 0); /* uppwer dword */ |
| 254 | intel_ring_emit(ring, MI_NOOP); |
| 255 | intel_ring_advance(ring); |
| 256 | |
| 257 | return 0; |
| 258 | } |
| 259 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 260 | static void ring_write_tail(struct intel_ring_buffer *ring, |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 261 | u32 value) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 262 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 263 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 264 | I915_WRITE_TAIL(ring, value); |
Xiang, Haihao | d46eefa | 2010-09-16 10:43:12 +0800 | [diff] [blame] | 265 | } |
| 266 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 267 | u32 intel_ring_get_active_head(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 268 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 269 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
| 270 | u32 acthd_reg = INTEL_INFO(ring->dev)->gen >= 4 ? |
Daniel Vetter | 3d281d8 | 2010-09-24 21:14:22 +0200 | [diff] [blame] | 271 | RING_ACTHD(ring->mmio_base) : ACTHD; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 272 | |
| 273 | return I915_READ(acthd_reg); |
| 274 | } |
| 275 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 276 | static int init_ring_common(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 277 | { |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 278 | struct drm_device *dev = ring->dev; |
| 279 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 280 | struct drm_i915_gem_object *obj = ring->obj; |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 281 | int ret = 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 282 | u32 head; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 283 | |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 284 | if (HAS_FORCE_WAKE(dev)) |
| 285 | gen6_gt_force_wake_get(dev_priv); |
| 286 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 287 | /* Stop the ring if it's running. */ |
Daniel Vetter | 7f2ab69 | 2010-08-02 17:06:59 +0200 | [diff] [blame] | 288 | I915_WRITE_CTL(ring, 0); |
Daniel Vetter | 570ef60 | 2010-08-02 17:06:23 +0200 | [diff] [blame] | 289 | I915_WRITE_HEAD(ring, 0); |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 290 | ring->write_tail(ring, 0); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 291 | |
| 292 | /* Initialize the ring. */ |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 293 | I915_WRITE_START(ring, obj->gtt_offset); |
Daniel Vetter | 570ef60 | 2010-08-02 17:06:23 +0200 | [diff] [blame] | 294 | head = I915_READ_HEAD(ring) & HEAD_ADDR; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 295 | |
| 296 | /* G45 ring initialization fails to reset head to zero */ |
| 297 | if (head != 0) { |
Chris Wilson | 6fd0d56 | 2010-12-05 20:42:33 +0000 | [diff] [blame] | 298 | DRM_DEBUG_KMS("%s head not reset to zero " |
| 299 | "ctl %08x head %08x tail %08x start %08x\n", |
| 300 | ring->name, |
| 301 | I915_READ_CTL(ring), |
| 302 | I915_READ_HEAD(ring), |
| 303 | I915_READ_TAIL(ring), |
| 304 | I915_READ_START(ring)); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 305 | |
Daniel Vetter | 570ef60 | 2010-08-02 17:06:23 +0200 | [diff] [blame] | 306 | I915_WRITE_HEAD(ring, 0); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 307 | |
Chris Wilson | 6fd0d56 | 2010-12-05 20:42:33 +0000 | [diff] [blame] | 308 | if (I915_READ_HEAD(ring) & HEAD_ADDR) { |
| 309 | DRM_ERROR("failed to set %s head to zero " |
| 310 | "ctl %08x head %08x tail %08x start %08x\n", |
| 311 | ring->name, |
| 312 | I915_READ_CTL(ring), |
| 313 | I915_READ_HEAD(ring), |
| 314 | I915_READ_TAIL(ring), |
| 315 | I915_READ_START(ring)); |
| 316 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 317 | } |
| 318 | |
Daniel Vetter | 7f2ab69 | 2010-08-02 17:06:59 +0200 | [diff] [blame] | 319 | I915_WRITE_CTL(ring, |
Chris Wilson | ae69b42 | 2010-11-07 11:45:52 +0000 | [diff] [blame] | 320 | ((ring->size - PAGE_SIZE) & RING_NR_PAGES) |
Chris Wilson | 5d031e5 | 2012-02-08 13:34:13 +0000 | [diff] [blame] | 321 | | RING_VALID); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 322 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 323 | /* If the head is still not zero, the ring is dead */ |
Sean Paul | f01db98 | 2012-03-16 12:43:22 -0400 | [diff] [blame] | 324 | if (wait_for((I915_READ_CTL(ring) & RING_VALID) != 0 && |
| 325 | I915_READ_START(ring) == obj->gtt_offset && |
| 326 | (I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) { |
Chris Wilson | e74cfed | 2010-11-09 10:16:56 +0000 | [diff] [blame] | 327 | DRM_ERROR("%s initialization failed " |
| 328 | "ctl %08x head %08x tail %08x start %08x\n", |
| 329 | ring->name, |
| 330 | I915_READ_CTL(ring), |
| 331 | I915_READ_HEAD(ring), |
| 332 | I915_READ_TAIL(ring), |
| 333 | I915_READ_START(ring)); |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 334 | ret = -EIO; |
| 335 | goto out; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 336 | } |
| 337 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 338 | if (!drm_core_check_feature(ring->dev, DRIVER_MODESET)) |
| 339 | i915_kernel_lost_context(ring->dev); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 340 | else { |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 341 | ring->head = I915_READ_HEAD(ring); |
Daniel Vetter | 870e86d | 2010-08-02 16:29:44 +0200 | [diff] [blame] | 342 | ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR; |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 343 | ring->space = ring_space(ring); |
Chris Wilson | c3b2003 | 2012-05-28 22:33:02 +0100 | [diff] [blame] | 344 | ring->last_retired_head = -1; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 345 | } |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 346 | |
Daniel Vetter | b7884eb | 2012-06-04 11:18:15 +0200 | [diff] [blame] | 347 | out: |
| 348 | if (HAS_FORCE_WAKE(dev)) |
| 349 | gen6_gt_force_wake_put(dev_priv); |
| 350 | |
| 351 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 352 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 353 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 354 | static int |
| 355 | init_pipe_control(struct intel_ring_buffer *ring) |
| 356 | { |
| 357 | struct pipe_control *pc; |
| 358 | struct drm_i915_gem_object *obj; |
| 359 | int ret; |
| 360 | |
| 361 | if (ring->private) |
| 362 | return 0; |
| 363 | |
| 364 | pc = kmalloc(sizeof(*pc), GFP_KERNEL); |
| 365 | if (!pc) |
| 366 | return -ENOMEM; |
| 367 | |
| 368 | obj = i915_gem_alloc_object(ring->dev, 4096); |
| 369 | if (obj == NULL) { |
| 370 | DRM_ERROR("Failed to allocate seqno page\n"); |
| 371 | ret = -ENOMEM; |
| 372 | goto err; |
| 373 | } |
Chris Wilson | e4ffd17 | 2011-04-04 09:44:39 +0100 | [diff] [blame] | 374 | |
| 375 | i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 376 | |
| 377 | ret = i915_gem_object_pin(obj, 4096, true); |
| 378 | if (ret) |
| 379 | goto err_unref; |
| 380 | |
| 381 | pc->gtt_offset = obj->gtt_offset; |
| 382 | pc->cpu_page = kmap(obj->pages[0]); |
| 383 | if (pc->cpu_page == NULL) |
| 384 | goto err_unpin; |
| 385 | |
| 386 | pc->obj = obj; |
| 387 | ring->private = pc; |
| 388 | return 0; |
| 389 | |
| 390 | err_unpin: |
| 391 | i915_gem_object_unpin(obj); |
| 392 | err_unref: |
| 393 | drm_gem_object_unreference(&obj->base); |
| 394 | err: |
| 395 | kfree(pc); |
| 396 | return ret; |
| 397 | } |
| 398 | |
| 399 | static void |
| 400 | cleanup_pipe_control(struct intel_ring_buffer *ring) |
| 401 | { |
| 402 | struct pipe_control *pc = ring->private; |
| 403 | struct drm_i915_gem_object *obj; |
| 404 | |
| 405 | if (!ring->private) |
| 406 | return; |
| 407 | |
| 408 | obj = pc->obj; |
| 409 | kunmap(obj->pages[0]); |
| 410 | i915_gem_object_unpin(obj); |
| 411 | drm_gem_object_unreference(&obj->base); |
| 412 | |
| 413 | kfree(pc); |
| 414 | ring->private = NULL; |
| 415 | } |
| 416 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 417 | static int init_render_ring(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 418 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 419 | struct drm_device *dev = ring->dev; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 420 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 421 | int ret = init_ring_common(ring); |
Zhenyu Wang | a69ffdb | 2010-08-30 16:12:42 +0800 | [diff] [blame] | 422 | |
Chris Wilson | a6c45cf | 2010-09-17 00:32:17 +0100 | [diff] [blame] | 423 | if (INTEL_INFO(dev)->gen > 3) { |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 424 | I915_WRITE(MI_MODE, _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH)); |
Jesse Barnes | b095cd0 | 2011-08-12 15:28:32 -0700 | [diff] [blame] | 425 | if (IS_GEN7(dev)) |
| 426 | I915_WRITE(GFX_MODE_GEN7, |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 427 | _MASKED_BIT_DISABLE(GFX_TLB_INVALIDATE_ALWAYS) | |
| 428 | _MASKED_BIT_ENABLE(GFX_REPLAY_MODE)); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 429 | } |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 430 | |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 431 | if (INTEL_INFO(dev)->gen >= 5) { |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 432 | ret = init_pipe_control(ring); |
| 433 | if (ret) |
| 434 | return ret; |
| 435 | } |
| 436 | |
Daniel Vetter | 5e13a0c | 2012-05-08 13:39:59 +0200 | [diff] [blame] | 437 | if (IS_GEN6(dev)) { |
Kenneth Graunke | 3a69ddd | 2012-04-27 12:44:41 -0700 | [diff] [blame] | 438 | /* From the Sandybridge PRM, volume 1 part 3, page 24: |
| 439 | * "If this bit is set, STCunit will have LRA as replacement |
| 440 | * policy. [...] This bit must be reset. LRA replacement |
| 441 | * policy is not supported." |
| 442 | */ |
| 443 | I915_WRITE(CACHE_MODE_0, |
Daniel Vetter | 5e13a0c | 2012-05-08 13:39:59 +0200 | [diff] [blame] | 444 | _MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB)); |
Ben Widawsky | 12b0286 | 2012-06-04 14:42:50 -0700 | [diff] [blame] | 445 | |
| 446 | /* This is not explicitly set for GEN6, so read the register. |
| 447 | * see intel_ring_mi_set_context() for why we care. |
| 448 | * TODO: consider explicitly setting the bit for GEN5 |
| 449 | */ |
| 450 | ring->itlb_before_ctx_switch = |
| 451 | !!(I915_READ(GFX_MODE) & GFX_TLB_INVALIDATE_ALWAYS); |
Ben Widawsky | 84f9f93 | 2011-12-12 19:21:58 -0800 | [diff] [blame] | 452 | } |
| 453 | |
Daniel Vetter | 6b26c86 | 2012-04-24 14:04:12 +0200 | [diff] [blame] | 454 | if (INTEL_INFO(dev)->gen >= 6) |
| 455 | I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING)); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 456 | |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 457 | if (IS_IVYBRIDGE(dev)) |
| 458 | I915_WRITE_IMR(ring, ~GEN6_RENDER_L3_PARITY_ERROR); |
| 459 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 460 | return ret; |
| 461 | } |
| 462 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 463 | static void render_ring_cleanup(struct intel_ring_buffer *ring) |
| 464 | { |
| 465 | if (!ring->private) |
| 466 | return; |
| 467 | |
| 468 | cleanup_pipe_control(ring); |
| 469 | } |
| 470 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 471 | static void |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 472 | update_mboxes(struct intel_ring_buffer *ring, |
| 473 | u32 seqno, |
| 474 | u32 mmio_offset) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 475 | { |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 476 | intel_ring_emit(ring, MI_SEMAPHORE_MBOX | |
| 477 | MI_SEMAPHORE_GLOBAL_GTT | |
| 478 | MI_SEMAPHORE_REGISTER | |
| 479 | MI_SEMAPHORE_UPDATE); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 480 | intel_ring_emit(ring, seqno); |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 481 | intel_ring_emit(ring, mmio_offset); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 482 | } |
| 483 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 484 | /** |
| 485 | * gen6_add_request - Update the semaphore mailbox registers |
| 486 | * |
| 487 | * @ring - ring that is adding a request |
| 488 | * @seqno - return seqno stuck into the ring |
| 489 | * |
| 490 | * Update the mailbox registers in the *other* rings with the current seqno. |
| 491 | * This acts like a signal in the canonical semaphore. |
| 492 | */ |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 493 | static int |
| 494 | gen6_add_request(struct intel_ring_buffer *ring, |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 495 | u32 *seqno) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 496 | { |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 497 | u32 mbox1_reg; |
| 498 | u32 mbox2_reg; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 499 | int ret; |
| 500 | |
| 501 | ret = intel_ring_begin(ring, 10); |
| 502 | if (ret) |
| 503 | return ret; |
| 504 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 505 | mbox1_reg = ring->signal_mbox[0]; |
| 506 | mbox2_reg = ring->signal_mbox[1]; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 507 | |
Daniel Vetter | 53d227f | 2012-01-25 16:32:49 +0100 | [diff] [blame] | 508 | *seqno = i915_gem_next_request_seqno(ring); |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 509 | |
| 510 | update_mboxes(ring, *seqno, mbox1_reg); |
| 511 | update_mboxes(ring, *seqno, mbox2_reg); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 512 | intel_ring_emit(ring, MI_STORE_DWORD_INDEX); |
| 513 | 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] | 514 | intel_ring_emit(ring, *seqno); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 515 | intel_ring_emit(ring, MI_USER_INTERRUPT); |
| 516 | intel_ring_advance(ring); |
| 517 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 518 | return 0; |
| 519 | } |
| 520 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 521 | /** |
| 522 | * intel_ring_sync - sync the waiter to the signaller on seqno |
| 523 | * |
| 524 | * @waiter - ring that is waiting |
| 525 | * @signaller - ring which has, or will signal |
| 526 | * @seqno - seqno which the waiter will block on |
| 527 | */ |
| 528 | static int |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 529 | gen6_ring_sync(struct intel_ring_buffer *waiter, |
| 530 | struct intel_ring_buffer *signaller, |
| 531 | u32 seqno) |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 532 | { |
| 533 | int ret; |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 534 | u32 dw1 = MI_SEMAPHORE_MBOX | |
| 535 | MI_SEMAPHORE_COMPARE | |
| 536 | MI_SEMAPHORE_REGISTER; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 537 | |
Ben Widawsky | 1500f7e | 2012-04-11 11:18:21 -0700 | [diff] [blame] | 538 | /* Throughout all of the GEM code, seqno passed implies our current |
| 539 | * seqno is >= the last seqno executed. However for hardware the |
| 540 | * comparison is strictly greater than. |
| 541 | */ |
| 542 | seqno -= 1; |
| 543 | |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 544 | WARN_ON(signaller->semaphore_register[waiter->id] == |
| 545 | MI_SEMAPHORE_SYNC_INVALID); |
| 546 | |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 547 | ret = intel_ring_begin(waiter, 4); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 548 | if (ret) |
| 549 | return ret; |
| 550 | |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 551 | intel_ring_emit(waiter, |
| 552 | dw1 | signaller->semaphore_register[waiter->id]); |
Ben Widawsky | c8c99b0 | 2011-09-14 20:32:47 -0700 | [diff] [blame] | 553 | intel_ring_emit(waiter, seqno); |
| 554 | intel_ring_emit(waiter, 0); |
| 555 | intel_ring_emit(waiter, MI_NOOP); |
| 556 | intel_ring_advance(waiter); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 557 | |
| 558 | return 0; |
| 559 | } |
| 560 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 561 | #define PIPE_CONTROL_FLUSH(ring__, addr__) \ |
| 562 | do { \ |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 563 | intel_ring_emit(ring__, GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE | \ |
| 564 | PIPE_CONTROL_DEPTH_STALL); \ |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 565 | intel_ring_emit(ring__, (addr__) | PIPE_CONTROL_GLOBAL_GTT); \ |
| 566 | intel_ring_emit(ring__, 0); \ |
| 567 | intel_ring_emit(ring__, 0); \ |
| 568 | } while (0) |
| 569 | |
| 570 | static int |
| 571 | pc_render_add_request(struct intel_ring_buffer *ring, |
| 572 | u32 *result) |
| 573 | { |
Daniel Vetter | 53d227f | 2012-01-25 16:32:49 +0100 | [diff] [blame] | 574 | u32 seqno = i915_gem_next_request_seqno(ring); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 575 | struct pipe_control *pc = ring->private; |
| 576 | u32 scratch_addr = pc->gtt_offset + 128; |
| 577 | int ret; |
| 578 | |
| 579 | /* For Ironlake, MI_USER_INTERRUPT was deprecated and apparently |
| 580 | * incoherent with writes to memory, i.e. completely fubar, |
| 581 | * so we need to use PIPE_NOTIFY instead. |
| 582 | * |
| 583 | * However, we also need to workaround the qword write |
| 584 | * incoherence by flushing the 6 PIPE_NOTIFY buffers out to |
| 585 | * memory before requesting an interrupt. |
| 586 | */ |
| 587 | ret = intel_ring_begin(ring, 32); |
| 588 | if (ret) |
| 589 | return ret; |
| 590 | |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 591 | 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] | 592 | PIPE_CONTROL_WRITE_FLUSH | |
| 593 | PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE); |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 594 | intel_ring_emit(ring, pc->gtt_offset | PIPE_CONTROL_GLOBAL_GTT); |
| 595 | intel_ring_emit(ring, seqno); |
| 596 | intel_ring_emit(ring, 0); |
| 597 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 598 | scratch_addr += 128; /* write to separate cachelines */ |
| 599 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 600 | scratch_addr += 128; |
| 601 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 602 | scratch_addr += 128; |
| 603 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 604 | scratch_addr += 128; |
| 605 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
| 606 | scratch_addr += 128; |
| 607 | PIPE_CONTROL_FLUSH(ring, scratch_addr); |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 608 | |
Kenneth Graunke | fcbc34e | 2011-10-11 23:41:08 +0200 | [diff] [blame] | 609 | 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] | 610 | PIPE_CONTROL_WRITE_FLUSH | |
| 611 | PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 612 | PIPE_CONTROL_NOTIFY); |
| 613 | intel_ring_emit(ring, pc->gtt_offset | PIPE_CONTROL_GLOBAL_GTT); |
| 614 | intel_ring_emit(ring, seqno); |
| 615 | intel_ring_emit(ring, 0); |
| 616 | intel_ring_advance(ring); |
| 617 | |
| 618 | *result = seqno; |
| 619 | return 0; |
| 620 | } |
| 621 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 622 | static u32 |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 623 | gen6_ring_get_seqno(struct intel_ring_buffer *ring) |
| 624 | { |
| 625 | struct drm_device *dev = ring->dev; |
| 626 | |
| 627 | /* Workaround to force correct ordering between irq and seqno writes on |
| 628 | * ivb (and maybe also on snb) by reading from a CS register (like |
| 629 | * ACTHD) before reading the status page. */ |
Daniel Vetter | 1c7eaac | 2012-03-27 09:31:24 +0200 | [diff] [blame] | 630 | if (IS_GEN6(dev) || IS_GEN7(dev)) |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 631 | intel_ring_get_active_head(ring); |
| 632 | return intel_read_status_page(ring, I915_GEM_HWS_INDEX); |
| 633 | } |
| 634 | |
| 635 | static u32 |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 636 | ring_get_seqno(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 637 | { |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 638 | return intel_read_status_page(ring, I915_GEM_HWS_INDEX); |
| 639 | } |
| 640 | |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 641 | static u32 |
| 642 | pc_render_get_seqno(struct intel_ring_buffer *ring) |
| 643 | { |
| 644 | struct pipe_control *pc = ring->private; |
| 645 | return pc->cpu_page[0]; |
| 646 | } |
| 647 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 648 | static bool |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 649 | gen5_ring_get_irq(struct intel_ring_buffer *ring) |
| 650 | { |
| 651 | struct drm_device *dev = ring->dev; |
| 652 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 653 | unsigned long flags; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 654 | |
| 655 | if (!dev->irq_enabled) |
| 656 | return false; |
| 657 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 658 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 659 | if (ring->irq_refcount++ == 0) { |
| 660 | dev_priv->gt_irq_mask &= ~ring->irq_enable_mask; |
| 661 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 662 | POSTING_READ(GTIMR); |
| 663 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 664 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 665 | |
| 666 | return true; |
| 667 | } |
| 668 | |
| 669 | static void |
| 670 | gen5_ring_put_irq(struct intel_ring_buffer *ring) |
| 671 | { |
| 672 | struct drm_device *dev = ring->dev; |
| 673 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 674 | unsigned long flags; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 675 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 676 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 677 | if (--ring->irq_refcount == 0) { |
| 678 | dev_priv->gt_irq_mask |= ring->irq_enable_mask; |
| 679 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 680 | POSTING_READ(GTIMR); |
| 681 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 682 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 683 | } |
| 684 | |
| 685 | static bool |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 686 | i9xx_ring_get_irq(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 687 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 688 | struct drm_device *dev = ring->dev; |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 689 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 690 | unsigned long flags; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 691 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 692 | if (!dev->irq_enabled) |
| 693 | return false; |
| 694 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 695 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 696 | if (ring->irq_refcount++ == 0) { |
| 697 | dev_priv->irq_mask &= ~ring->irq_enable_mask; |
| 698 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 699 | POSTING_READ(IMR); |
| 700 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 701 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 702 | |
| 703 | return true; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 704 | } |
| 705 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 706 | static void |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 707 | i9xx_ring_put_irq(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 708 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 709 | struct drm_device *dev = ring->dev; |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 710 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 711 | unsigned long flags; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 712 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 713 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 714 | if (--ring->irq_refcount == 0) { |
| 715 | dev_priv->irq_mask |= ring->irq_enable_mask; |
| 716 | I915_WRITE(IMR, dev_priv->irq_mask); |
| 717 | POSTING_READ(IMR); |
| 718 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 719 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 720 | } |
| 721 | |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 722 | static bool |
| 723 | i8xx_ring_get_irq(struct intel_ring_buffer *ring) |
| 724 | { |
| 725 | struct drm_device *dev = ring->dev; |
| 726 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 727 | unsigned long flags; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 728 | |
| 729 | if (!dev->irq_enabled) |
| 730 | return false; |
| 731 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 732 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 733 | if (ring->irq_refcount++ == 0) { |
| 734 | dev_priv->irq_mask &= ~ring->irq_enable_mask; |
| 735 | I915_WRITE16(IMR, dev_priv->irq_mask); |
| 736 | POSTING_READ16(IMR); |
| 737 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 738 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 739 | |
| 740 | return true; |
| 741 | } |
| 742 | |
| 743 | static void |
| 744 | i8xx_ring_put_irq(struct intel_ring_buffer *ring) |
| 745 | { |
| 746 | struct drm_device *dev = ring->dev; |
| 747 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 748 | unsigned long flags; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 749 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 750 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 751 | if (--ring->irq_refcount == 0) { |
| 752 | dev_priv->irq_mask |= ring->irq_enable_mask; |
| 753 | I915_WRITE16(IMR, dev_priv->irq_mask); |
| 754 | POSTING_READ16(IMR); |
| 755 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 756 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 757 | } |
| 758 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 759 | void intel_ring_setup_status_page(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 760 | { |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 761 | struct drm_device *dev = ring->dev; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 762 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 763 | u32 mmio = 0; |
| 764 | |
| 765 | /* The ring status page addresses are no longer next to the rest of |
| 766 | * the ring registers as of gen7. |
| 767 | */ |
| 768 | if (IS_GEN7(dev)) { |
| 769 | switch (ring->id) { |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 770 | case RCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 771 | mmio = RENDER_HWS_PGA_GEN7; |
| 772 | break; |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 773 | case BCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 774 | mmio = BLT_HWS_PGA_GEN7; |
| 775 | break; |
Daniel Vetter | 96154f2 | 2011-12-14 13:57:00 +0100 | [diff] [blame] | 776 | case VCS: |
Eric Anholt | 4593010 | 2011-05-06 17:12:35 -0700 | [diff] [blame] | 777 | mmio = BSD_HWS_PGA_GEN7; |
| 778 | break; |
| 779 | } |
| 780 | } else if (IS_GEN6(ring->dev)) { |
| 781 | mmio = RING_HWS_PGA_GEN6(ring->mmio_base); |
| 782 | } else { |
| 783 | mmio = RING_HWS_PGA(ring->mmio_base); |
| 784 | } |
| 785 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 786 | I915_WRITE(mmio, (u32)ring->status_page.gfx_addr); |
| 787 | POSTING_READ(mmio); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 788 | } |
| 789 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 790 | static int |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 791 | bsd_ring_flush(struct intel_ring_buffer *ring, |
| 792 | u32 invalidate_domains, |
| 793 | u32 flush_domains) |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 794 | { |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 795 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 796 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 797 | ret = intel_ring_begin(ring, 2); |
| 798 | if (ret) |
| 799 | return ret; |
| 800 | |
| 801 | intel_ring_emit(ring, MI_FLUSH); |
| 802 | intel_ring_emit(ring, MI_NOOP); |
| 803 | intel_ring_advance(ring); |
| 804 | return 0; |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 805 | } |
| 806 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 807 | static int |
Daniel Vetter | 8620a3a | 2012-04-11 22:12:57 +0200 | [diff] [blame] | 808 | i9xx_add_request(struct intel_ring_buffer *ring, |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 809 | u32 *result) |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 810 | { |
| 811 | u32 seqno; |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 812 | int ret; |
| 813 | |
| 814 | ret = intel_ring_begin(ring, 4); |
| 815 | if (ret) |
| 816 | return ret; |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 817 | |
Daniel Vetter | 53d227f | 2012-01-25 16:32:49 +0100 | [diff] [blame] | 818 | seqno = i915_gem_next_request_seqno(ring); |
Chris Wilson | 6f392d548 | 2010-08-07 11:01:22 +0100 | [diff] [blame] | 819 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 820 | intel_ring_emit(ring, MI_STORE_DWORD_INDEX); |
| 821 | intel_ring_emit(ring, I915_GEM_HWS_INDEX << MI_STORE_DWORD_INDEX_SHIFT); |
| 822 | intel_ring_emit(ring, seqno); |
| 823 | intel_ring_emit(ring, MI_USER_INTERRUPT); |
| 824 | intel_ring_advance(ring); |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 825 | |
Chris Wilson | 3cce469 | 2010-10-27 16:11:02 +0100 | [diff] [blame] | 826 | *result = seqno; |
| 827 | return 0; |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 828 | } |
| 829 | |
Chris Wilson | b13c2b9 | 2010-12-13 16:54:50 +0000 | [diff] [blame] | 830 | static bool |
Ben Widawsky | 25c0630 | 2012-03-29 19:11:27 -0700 | [diff] [blame] | 831 | gen6_ring_get_irq(struct intel_ring_buffer *ring) |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 832 | { |
| 833 | struct drm_device *dev = ring->dev; |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 834 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 835 | unsigned long flags; |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 836 | |
| 837 | if (!dev->irq_enabled) |
| 838 | return false; |
| 839 | |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 840 | /* It looks like we need to prevent the gt from suspending while waiting |
| 841 | * for an notifiy irq, otherwise irqs seem to get lost on at least the |
| 842 | * blt/bsd rings on ivb. */ |
Daniel Vetter | 99ffa16 | 2012-01-25 14:04:00 +0100 | [diff] [blame] | 843 | gen6_gt_force_wake_get(dev_priv); |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 844 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 845 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 846 | if (ring->irq_refcount++ == 0) { |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 847 | if (IS_IVYBRIDGE(dev) && ring->id == RCS) |
| 848 | I915_WRITE_IMR(ring, ~(ring->irq_enable_mask | |
| 849 | GEN6_RENDER_L3_PARITY_ERROR)); |
| 850 | else |
| 851 | I915_WRITE_IMR(ring, ~ring->irq_enable_mask); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 852 | dev_priv->gt_irq_mask &= ~ring->irq_enable_mask; |
| 853 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 854 | POSTING_READ(GTIMR); |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 855 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 856 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 857 | |
| 858 | return true; |
| 859 | } |
| 860 | |
| 861 | static void |
Ben Widawsky | 25c0630 | 2012-03-29 19:11:27 -0700 | [diff] [blame] | 862 | gen6_ring_put_irq(struct intel_ring_buffer *ring) |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 863 | { |
| 864 | struct drm_device *dev = ring->dev; |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 865 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 866 | unsigned long flags; |
Chris Wilson | 0f46832 | 2011-01-04 17:35:21 +0000 | [diff] [blame] | 867 | |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 868 | spin_lock_irqsave(&dev_priv->irq_lock, flags); |
Chris Wilson | 01a0333 | 2011-01-04 22:22:56 +0000 | [diff] [blame] | 869 | if (--ring->irq_refcount == 0) { |
Ben Widawsky | 15b9f80 | 2012-05-25 16:56:23 -0700 | [diff] [blame] | 870 | if (IS_IVYBRIDGE(dev) && ring->id == RCS) |
| 871 | I915_WRITE_IMR(ring, ~GEN6_RENDER_L3_PARITY_ERROR); |
| 872 | else |
| 873 | I915_WRITE_IMR(ring, ~0); |
Daniel Vetter | f637fde | 2012-04-11 22:12:59 +0200 | [diff] [blame] | 874 | dev_priv->gt_irq_mask |= ring->irq_enable_mask; |
| 875 | I915_WRITE(GTIMR, dev_priv->gt_irq_mask); |
| 876 | POSTING_READ(GTIMR); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 877 | } |
Chris Wilson | 7338aef | 2012-04-24 21:48:47 +0100 | [diff] [blame] | 878 | spin_unlock_irqrestore(&dev_priv->irq_lock, flags); |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 879 | |
Daniel Vetter | 99ffa16 | 2012-01-25 14:04:00 +0100 | [diff] [blame] | 880 | gen6_gt_force_wake_put(dev_priv); |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 881 | } |
| 882 | |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 883 | static int |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 884 | 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] | 885 | { |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 886 | int ret; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 887 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 888 | ret = intel_ring_begin(ring, 2); |
| 889 | if (ret) |
| 890 | return ret; |
| 891 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 892 | intel_ring_emit(ring, |
Chris Wilson | 65f5687 | 2012-04-17 16:38:12 +0100 | [diff] [blame] | 893 | MI_BATCH_BUFFER_START | |
| 894 | MI_BATCH_GTT | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 895 | MI_BATCH_NON_SECURE_I965); |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 896 | intel_ring_emit(ring, offset); |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 897 | intel_ring_advance(ring); |
| 898 | |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 899 | return 0; |
| 900 | } |
| 901 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 902 | static int |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 903 | i830_dispatch_execbuffer(struct intel_ring_buffer *ring, |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 904 | u32 offset, u32 len) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 905 | { |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 906 | int ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 907 | |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 908 | ret = intel_ring_begin(ring, 4); |
| 909 | if (ret) |
| 910 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 911 | |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 912 | intel_ring_emit(ring, MI_BATCH_BUFFER); |
| 913 | intel_ring_emit(ring, offset | MI_BATCH_NON_SECURE); |
| 914 | intel_ring_emit(ring, offset + len - 8); |
| 915 | intel_ring_emit(ring, 0); |
| 916 | intel_ring_advance(ring); |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 917 | |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 918 | return 0; |
| 919 | } |
| 920 | |
| 921 | static int |
| 922 | i915_dispatch_execbuffer(struct intel_ring_buffer *ring, |
| 923 | u32 offset, u32 len) |
| 924 | { |
| 925 | int ret; |
| 926 | |
| 927 | ret = intel_ring_begin(ring, 2); |
| 928 | if (ret) |
| 929 | return ret; |
| 930 | |
Chris Wilson | 65f5687 | 2012-04-17 16:38:12 +0100 | [diff] [blame] | 931 | intel_ring_emit(ring, MI_BATCH_BUFFER_START | MI_BATCH_GTT); |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 932 | intel_ring_emit(ring, offset | MI_BATCH_NON_SECURE); |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 933 | intel_ring_advance(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 934 | |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 935 | return 0; |
| 936 | } |
| 937 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 938 | static void cleanup_status_page(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 939 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 940 | struct drm_i915_gem_object *obj; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 941 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 942 | obj = ring->status_page.obj; |
| 943 | if (obj == NULL) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 944 | return; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 945 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 946 | kunmap(obj->pages[0]); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 947 | i915_gem_object_unpin(obj); |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 948 | drm_gem_object_unreference(&obj->base); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 949 | ring->status_page.obj = NULL; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 950 | } |
| 951 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 952 | static int init_status_page(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 953 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 954 | struct drm_device *dev = ring->dev; |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 955 | struct drm_i915_gem_object *obj; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 956 | int ret; |
| 957 | |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 958 | obj = i915_gem_alloc_object(dev, 4096); |
| 959 | if (obj == NULL) { |
| 960 | DRM_ERROR("Failed to allocate status page\n"); |
| 961 | ret = -ENOMEM; |
| 962 | goto err; |
| 963 | } |
Chris Wilson | e4ffd17 | 2011-04-04 09:44:39 +0100 | [diff] [blame] | 964 | |
| 965 | i915_gem_object_set_cache_level(obj, I915_CACHE_LLC); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 966 | |
Daniel Vetter | 75e9e91 | 2010-11-04 17:11:09 +0100 | [diff] [blame] | 967 | ret = i915_gem_object_pin(obj, 4096, true); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 968 | if (ret != 0) { |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 969 | goto err_unref; |
| 970 | } |
| 971 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 972 | ring->status_page.gfx_addr = obj->gtt_offset; |
| 973 | ring->status_page.page_addr = kmap(obj->pages[0]); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 974 | if (ring->status_page.page_addr == NULL) { |
Ben Widawsky | 2e6c21e | 2012-07-12 23:16:12 -0700 | [diff] [blame] | 975 | ret = -ENOMEM; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 976 | goto err_unpin; |
| 977 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 978 | ring->status_page.obj = obj; |
| 979 | memset(ring->status_page.page_addr, 0, PAGE_SIZE); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 980 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 981 | intel_ring_setup_status_page(ring); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 982 | DRM_DEBUG_DRIVER("%s hws offset: 0x%08x\n", |
| 983 | ring->name, ring->status_page.gfx_addr); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 984 | |
| 985 | return 0; |
| 986 | |
| 987 | err_unpin: |
| 988 | i915_gem_object_unpin(obj); |
| 989 | err_unref: |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 990 | drm_gem_object_unreference(&obj->base); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 991 | err: |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 992 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 993 | } |
| 994 | |
Ben Widawsky | c43b563 | 2012-04-16 14:07:40 -0700 | [diff] [blame] | 995 | static int intel_init_ring_buffer(struct drm_device *dev, |
| 996 | struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 997 | { |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 998 | struct drm_i915_gem_object *obj; |
Daniel Vetter | dd2757f | 2012-06-07 15:55:57 +0200 | [diff] [blame] | 999 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1000 | int ret; |
| 1001 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1002 | ring->dev = dev; |
Chris Wilson | 23bc598 | 2010-09-29 16:10:57 +0100 | [diff] [blame] | 1003 | INIT_LIST_HEAD(&ring->active_list); |
| 1004 | INIT_LIST_HEAD(&ring->request_list); |
Daniel Vetter | dfc9ef2 | 2012-04-11 22:12:47 +0200 | [diff] [blame] | 1005 | ring->size = 32 * PAGE_SIZE; |
Chris Wilson | 0dc79fb | 2011-01-05 10:32:24 +0000 | [diff] [blame] | 1006 | |
Chris Wilson | b259f67 | 2011-03-29 13:19:09 +0100 | [diff] [blame] | 1007 | init_waitqueue_head(&ring->irq_queue); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1008 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1009 | if (I915_NEED_GFX_HWS(dev)) { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1010 | ret = init_status_page(ring); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1011 | if (ret) |
| 1012 | return ret; |
| 1013 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1014 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1015 | obj = i915_gem_alloc_object(dev, ring->size); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1016 | if (obj == NULL) { |
| 1017 | DRM_ERROR("Failed to allocate ringbuffer\n"); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1018 | ret = -ENOMEM; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1019 | goto err_hws; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1020 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1021 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1022 | ring->obj = obj; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1023 | |
Daniel Vetter | 75e9e91 | 2010-11-04 17:11:09 +0100 | [diff] [blame] | 1024 | ret = i915_gem_object_pin(obj, PAGE_SIZE, true); |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1025 | if (ret) |
| 1026 | goto err_unref; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1027 | |
Chris Wilson | 3eef891 | 2012-06-04 17:05:40 +0100 | [diff] [blame] | 1028 | ret = i915_gem_object_set_to_gtt_domain(obj, true); |
| 1029 | if (ret) |
| 1030 | goto err_unpin; |
| 1031 | |
Daniel Vetter | dd2757f | 2012-06-07 15:55:57 +0200 | [diff] [blame] | 1032 | ring->virtual_start = |
| 1033 | ioremap_wc(dev_priv->mm.gtt->gma_bus_addr + obj->gtt_offset, |
| 1034 | ring->size); |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1035 | if (ring->virtual_start == NULL) { |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1036 | DRM_ERROR("Failed to map ringbuffer.\n"); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1037 | ret = -EINVAL; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1038 | goto err_unpin; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1039 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1040 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1041 | ret = ring->init(ring); |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1042 | if (ret) |
| 1043 | goto err_unmap; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1044 | |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1045 | /* Workaround an erratum on the i830 which causes a hang if |
| 1046 | * the TAIL pointer points to within the last 2 cachelines |
| 1047 | * of the buffer. |
| 1048 | */ |
| 1049 | ring->effective_size = ring->size; |
Chris Wilson | 27c1cbd | 2012-04-09 13:59:46 +0100 | [diff] [blame] | 1050 | if (IS_I830(ring->dev) || IS_845G(ring->dev)) |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1051 | ring->effective_size -= 128; |
| 1052 | |
Chris Wilson | c584fe4 | 2010-10-29 18:15:52 +0100 | [diff] [blame] | 1053 | return 0; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1054 | |
| 1055 | err_unmap: |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1056 | iounmap(ring->virtual_start); |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1057 | err_unpin: |
| 1058 | i915_gem_object_unpin(obj); |
| 1059 | err_unref: |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1060 | drm_gem_object_unreference(&obj->base); |
| 1061 | ring->obj = NULL; |
Chris Wilson | dd785e3 | 2010-08-07 11:01:34 +0100 | [diff] [blame] | 1062 | err_hws: |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1063 | cleanup_status_page(ring); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1064 | return ret; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1065 | } |
| 1066 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1067 | void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1068 | { |
Chris Wilson | 33626e6 | 2010-10-29 16:18:36 +0100 | [diff] [blame] | 1069 | struct drm_i915_private *dev_priv; |
| 1070 | int ret; |
| 1071 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1072 | if (ring->obj == NULL) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1073 | return; |
| 1074 | |
Chris Wilson | 33626e6 | 2010-10-29 16:18:36 +0100 | [diff] [blame] | 1075 | /* Disable the ring buffer. The ring must be idle at this point */ |
| 1076 | dev_priv = ring->dev->dev_private; |
Ben Widawsky | 96f298a | 2011-03-19 18:14:27 -0700 | [diff] [blame] | 1077 | ret = intel_wait_ring_idle(ring); |
Chris Wilson | 29ee399 | 2011-01-24 16:35:42 +0000 | [diff] [blame] | 1078 | if (ret) |
| 1079 | DRM_ERROR("failed to quiesce %s whilst cleaning up: %d\n", |
| 1080 | ring->name, ret); |
| 1081 | |
Chris Wilson | 33626e6 | 2010-10-29 16:18:36 +0100 | [diff] [blame] | 1082 | I915_WRITE_CTL(ring, 0); |
| 1083 | |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1084 | iounmap(ring->virtual_start); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1085 | |
Chris Wilson | 05394f3 | 2010-11-08 19:18:58 +0000 | [diff] [blame] | 1086 | i915_gem_object_unpin(ring->obj); |
| 1087 | drm_gem_object_unreference(&ring->obj->base); |
| 1088 | ring->obj = NULL; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1089 | |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 1090 | if (ring->cleanup) |
| 1091 | ring->cleanup(ring); |
| 1092 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1093 | cleanup_status_page(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1094 | } |
| 1095 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1096 | static int intel_wrap_ring_buffer(struct intel_ring_buffer *ring) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1097 | { |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1098 | uint32_t __iomem *virt; |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1099 | int rem = ring->size - ring->tail; |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1100 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1101 | if (ring->space < rem) { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1102 | int ret = intel_wait_ring_buffer(ring, rem); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1103 | if (ret) |
| 1104 | return ret; |
| 1105 | } |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1106 | |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1107 | virt = ring->virtual_start + ring->tail; |
| 1108 | rem /= 4; |
| 1109 | while (rem--) |
| 1110 | iowrite32(MI_NOOP, virt++); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1111 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1112 | ring->tail = 0; |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 1113 | ring->space = ring_space(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1114 | |
| 1115 | return 0; |
| 1116 | } |
| 1117 | |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1118 | static int intel_ring_wait_seqno(struct intel_ring_buffer *ring, u32 seqno) |
| 1119 | { |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1120 | int ret; |
| 1121 | |
Ben Widawsky | 199b2bc | 2012-05-24 15:03:11 -0700 | [diff] [blame] | 1122 | ret = i915_wait_seqno(ring, seqno); |
Ben Widawsky | b2da9fe | 2012-04-26 16:02:58 -0700 | [diff] [blame] | 1123 | if (!ret) |
| 1124 | i915_gem_retire_requests_ring(ring); |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1125 | |
| 1126 | return ret; |
| 1127 | } |
| 1128 | |
| 1129 | static int intel_ring_wait_request(struct intel_ring_buffer *ring, int n) |
| 1130 | { |
| 1131 | struct drm_i915_gem_request *request; |
| 1132 | u32 seqno = 0; |
| 1133 | int ret; |
| 1134 | |
| 1135 | i915_gem_retire_requests_ring(ring); |
| 1136 | |
| 1137 | if (ring->last_retired_head != -1) { |
| 1138 | ring->head = ring->last_retired_head; |
| 1139 | ring->last_retired_head = -1; |
| 1140 | ring->space = ring_space(ring); |
| 1141 | if (ring->space >= n) |
| 1142 | return 0; |
| 1143 | } |
| 1144 | |
| 1145 | list_for_each_entry(request, &ring->request_list, list) { |
| 1146 | int space; |
| 1147 | |
| 1148 | if (request->tail == -1) |
| 1149 | continue; |
| 1150 | |
| 1151 | space = request->tail - (ring->tail + 8); |
| 1152 | if (space < 0) |
| 1153 | space += ring->size; |
| 1154 | if (space >= n) { |
| 1155 | seqno = request->seqno; |
| 1156 | break; |
| 1157 | } |
| 1158 | |
| 1159 | /* Consume this request in case we need more space than |
| 1160 | * is available and so need to prevent a race between |
| 1161 | * updating last_retired_head and direct reads of |
| 1162 | * I915_RING_HEAD. It also provides a nice sanity check. |
| 1163 | */ |
| 1164 | request->tail = -1; |
| 1165 | } |
| 1166 | |
| 1167 | if (seqno == 0) |
| 1168 | return -ENOSPC; |
| 1169 | |
| 1170 | ret = intel_ring_wait_seqno(ring, seqno); |
| 1171 | if (ret) |
| 1172 | return ret; |
| 1173 | |
| 1174 | if (WARN_ON(ring->last_retired_head == -1)) |
| 1175 | return -ENOSPC; |
| 1176 | |
| 1177 | ring->head = ring->last_retired_head; |
| 1178 | ring->last_retired_head = -1; |
| 1179 | ring->space = ring_space(ring); |
| 1180 | if (WARN_ON(ring->space < n)) |
| 1181 | return -ENOSPC; |
| 1182 | |
| 1183 | return 0; |
| 1184 | } |
| 1185 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1186 | int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n) |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1187 | { |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1188 | struct drm_device *dev = ring->dev; |
Zou Nan hai | cae5852 | 2010-11-09 17:17:32 +0800 | [diff] [blame] | 1189 | struct drm_i915_private *dev_priv = dev->dev_private; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1190 | unsigned long end; |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1191 | int ret; |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 1192 | |
Chris Wilson | a71d8d9 | 2012-02-15 11:25:36 +0000 | [diff] [blame] | 1193 | ret = intel_ring_wait_request(ring, n); |
| 1194 | if (ret != -ENOSPC) |
| 1195 | return ret; |
| 1196 | |
Chris Wilson | db53a30 | 2011-02-03 11:57:46 +0000 | [diff] [blame] | 1197 | trace_i915_ring_wait_begin(ring); |
Daniel Vetter | 63ed2cb | 2012-04-23 16:50:50 +0200 | [diff] [blame] | 1198 | /* With GEM the hangcheck timer should kick us out of the loop, |
| 1199 | * leaving it early runs the risk of corrupting GEM state (due |
| 1200 | * to running on almost untested codepaths). But on resume |
| 1201 | * timers don't work yet, so prevent a complete hang in that |
| 1202 | * case by choosing an insanely large timeout. */ |
| 1203 | end = jiffies + 60 * HZ; |
Daniel Vetter | e6bfaf8 | 2011-12-14 13:56:59 +0100 | [diff] [blame] | 1204 | |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1205 | do { |
Chris Wilson | c7dca47 | 2011-01-20 17:00:10 +0000 | [diff] [blame] | 1206 | ring->head = I915_READ_HEAD(ring); |
| 1207 | ring->space = ring_space(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1208 | if (ring->space >= n) { |
Chris Wilson | db53a30 | 2011-02-03 11:57:46 +0000 | [diff] [blame] | 1209 | trace_i915_ring_wait_end(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1210 | return 0; |
| 1211 | } |
| 1212 | |
| 1213 | if (dev->primary->master) { |
| 1214 | struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv; |
| 1215 | if (master_priv->sarea_priv) |
| 1216 | master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT; |
| 1217 | } |
Zou Nan hai | d1b851f | 2010-05-21 09:08:57 +0800 | [diff] [blame] | 1218 | |
Chris Wilson | e60a0b1 | 2010-10-13 10:09:14 +0100 | [diff] [blame] | 1219 | msleep(1); |
Daniel Vetter | d6b2c79 | 2012-07-04 22:54:13 +0200 | [diff] [blame] | 1220 | |
| 1221 | ret = i915_gem_check_wedge(dev_priv, dev_priv->mm.interruptible); |
| 1222 | if (ret) |
| 1223 | return ret; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1224 | } while (!time_after(jiffies, end)); |
Chris Wilson | db53a30 | 2011-02-03 11:57:46 +0000 | [diff] [blame] | 1225 | trace_i915_ring_wait_end(ring); |
Eric Anholt | 62fdfea | 2010-05-21 13:26:39 -0700 | [diff] [blame] | 1226 | return -EBUSY; |
| 1227 | } |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1228 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1229 | int intel_ring_begin(struct intel_ring_buffer *ring, |
| 1230 | int num_dwords) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1231 | { |
Daniel Vetter | de2b998 | 2012-07-04 22:52:50 +0200 | [diff] [blame] | 1232 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
Zou Nan hai | be26a10 | 2010-06-12 17:40:24 +0800 | [diff] [blame] | 1233 | int n = 4*num_dwords; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1234 | int ret; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1235 | |
Daniel Vetter | de2b998 | 2012-07-04 22:52:50 +0200 | [diff] [blame] | 1236 | ret = i915_gem_check_wedge(dev_priv, dev_priv->mm.interruptible); |
| 1237 | if (ret) |
| 1238 | return ret; |
Chris Wilson | 21dd373 | 2011-01-26 15:55:56 +0000 | [diff] [blame] | 1239 | |
Chris Wilson | 55249ba | 2010-12-22 14:04:47 +0000 | [diff] [blame] | 1240 | if (unlikely(ring->tail + n > ring->effective_size)) { |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1241 | ret = intel_wrap_ring_buffer(ring); |
| 1242 | if (unlikely(ret)) |
| 1243 | return ret; |
| 1244 | } |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1245 | |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1246 | if (unlikely(ring->space < n)) { |
| 1247 | ret = intel_wait_ring_buffer(ring, n); |
| 1248 | if (unlikely(ret)) |
| 1249 | return ret; |
| 1250 | } |
Chris Wilson | d97ed33 | 2010-08-04 15:18:13 +0100 | [diff] [blame] | 1251 | |
| 1252 | ring->space -= n; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1253 | return 0; |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1254 | } |
| 1255 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1256 | void intel_ring_advance(struct intel_ring_buffer *ring) |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1257 | { |
Daniel Vetter | e5eb3d6 | 2012-05-03 14:48:16 +0200 | [diff] [blame] | 1258 | struct drm_i915_private *dev_priv = ring->dev->dev_private; |
| 1259 | |
Chris Wilson | d97ed33 | 2010-08-04 15:18:13 +0100 | [diff] [blame] | 1260 | ring->tail &= ring->size - 1; |
Daniel Vetter | e5eb3d6 | 2012-05-03 14:48:16 +0200 | [diff] [blame] | 1261 | if (dev_priv->stop_rings & intel_ring_flag(ring)) |
| 1262 | return; |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1263 | ring->write_tail(ring, ring->tail); |
Zou Nan hai | 8187a2b | 2010-05-21 09:08:55 +0800 | [diff] [blame] | 1264 | } |
| 1265 | |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1266 | |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1267 | static void gen6_bsd_ring_write_tail(struct intel_ring_buffer *ring, |
Chris Wilson | 297b0c5 | 2010-10-22 17:02:41 +0100 | [diff] [blame] | 1268 | u32 value) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1269 | { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1270 | drm_i915_private_t *dev_priv = ring->dev->dev_private; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1271 | |
| 1272 | /* Every tail move must follow the sequence below */ |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1273 | |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1274 | /* Disable notification that the ring is IDLE. The GT |
| 1275 | * will then assume that it is busy and bring it out of rc6. |
| 1276 | */ |
| 1277 | I915_WRITE(GEN6_BSD_SLEEP_PSMI_CONTROL, |
| 1278 | _MASKED_BIT_ENABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); |
| 1279 | |
| 1280 | /* Clear the context id. Here be magic! */ |
| 1281 | I915_WRITE64(GEN6_BSD_RNCID, 0x0); |
| 1282 | |
| 1283 | /* 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] | 1284 | if (wait_for((I915_READ(GEN6_BSD_SLEEP_PSMI_CONTROL) & |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1285 | GEN6_BSD_SLEEP_INDICATOR) == 0, |
| 1286 | 50)) |
| 1287 | 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] | 1288 | |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1289 | /* Now that the ring is fully powered up, update the tail */ |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1290 | I915_WRITE_TAIL(ring, value); |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1291 | POSTING_READ(RING_TAIL(ring->mmio_base)); |
| 1292 | |
| 1293 | /* Let the ring send IDLE messages to the GT again, |
| 1294 | * and so let it sleep to conserve power when idle. |
| 1295 | */ |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1296 | I915_WRITE(GEN6_BSD_SLEEP_PSMI_CONTROL, |
Chris Wilson | 12f5581 | 2012-07-05 17:14:01 +0100 | [diff] [blame] | 1297 | _MASKED_BIT_DISABLE(GEN6_BSD_SLEEP_MSG_DISABLE)); |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1298 | } |
| 1299 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1300 | static int gen6_ring_flush(struct intel_ring_buffer *ring, |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1301 | u32 invalidate, u32 flush) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1302 | { |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1303 | uint32_t cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1304 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1305 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1306 | ret = intel_ring_begin(ring, 4); |
| 1307 | if (ret) |
| 1308 | return ret; |
| 1309 | |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1310 | cmd = MI_FLUSH_DW; |
| 1311 | if (invalidate & I915_GEM_GPU_DOMAINS) |
| 1312 | cmd |= MI_INVALIDATE_TLB | MI_INVALIDATE_BSD; |
| 1313 | intel_ring_emit(ring, cmd); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1314 | intel_ring_emit(ring, 0); |
| 1315 | intel_ring_emit(ring, 0); |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1316 | intel_ring_emit(ring, MI_NOOP); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1317 | intel_ring_advance(ring); |
| 1318 | return 0; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1319 | } |
| 1320 | |
| 1321 | static int |
Chris Wilson | 78501ea | 2010-10-27 12:18:21 +0100 | [diff] [blame] | 1322 | gen6_ring_dispatch_execbuffer(struct intel_ring_buffer *ring, |
Chris Wilson | c4e7a41 | 2010-11-30 14:10:25 +0000 | [diff] [blame] | 1323 | u32 offset, u32 len) |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1324 | { |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1325 | int ret; |
Chris Wilson | ab6f8e3 | 2010-09-19 17:53:44 +0100 | [diff] [blame] | 1326 | |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1327 | ret = intel_ring_begin(ring, 2); |
| 1328 | if (ret) |
| 1329 | return ret; |
Chris Wilson | e1f99ce | 2010-10-27 12:45:26 +0100 | [diff] [blame] | 1330 | |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1331 | intel_ring_emit(ring, MI_BATCH_BUFFER_START | MI_BATCH_NON_SECURE_I965); |
| 1332 | /* bit0-7 is the length on GEN6+ */ |
| 1333 | intel_ring_emit(ring, offset); |
| 1334 | intel_ring_advance(ring); |
Chris Wilson | ab6f8e3 | 2010-09-19 17:53:44 +0100 | [diff] [blame] | 1335 | |
Akshay Joshi | 0206e35 | 2011-08-16 15:34:10 -0400 | [diff] [blame] | 1336 | return 0; |
Xiang, Haihao | 881f47b | 2010-09-19 14:40:43 +0100 | [diff] [blame] | 1337 | } |
| 1338 | |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1339 | /* Blitter support (SandyBridge+) */ |
| 1340 | |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1341 | static int blt_ring_flush(struct intel_ring_buffer *ring, |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1342 | u32 invalidate, u32 flush) |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 1343 | { |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1344 | uint32_t cmd; |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1345 | int ret; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1346 | |
Daniel Vetter | 6a233c7 | 2011-12-14 13:57:07 +0100 | [diff] [blame] | 1347 | ret = intel_ring_begin(ring, 4); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1348 | if (ret) |
| 1349 | return ret; |
| 1350 | |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1351 | cmd = MI_FLUSH_DW; |
| 1352 | if (invalidate & I915_GEM_DOMAIN_RENDER) |
| 1353 | cmd |= MI_INVALIDATE_TLB; |
| 1354 | intel_ring_emit(ring, cmd); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1355 | intel_ring_emit(ring, 0); |
| 1356 | intel_ring_emit(ring, 0); |
Chris Wilson | 71a77e0 | 2011-02-02 12:13:49 +0000 | [diff] [blame] | 1357 | intel_ring_emit(ring, MI_NOOP); |
Chris Wilson | b72f3ac | 2011-01-04 17:34:02 +0000 | [diff] [blame] | 1358 | intel_ring_advance(ring); |
| 1359 | return 0; |
Zou Nan hai | 8d19215 | 2010-11-02 16:31:01 +0800 | [diff] [blame] | 1360 | } |
| 1361 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1362 | int intel_init_render_ring_buffer(struct drm_device *dev) |
| 1363 | { |
| 1364 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1365 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1366 | |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1367 | ring->name = "render ring"; |
| 1368 | ring->id = RCS; |
| 1369 | ring->mmio_base = RENDER_RING_BASE; |
| 1370 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1371 | if (INTEL_INFO(dev)->gen >= 6) { |
| 1372 | ring->add_request = gen6_add_request; |
Jesse Barnes | 8d31528 | 2011-10-16 10:23:31 +0200 | [diff] [blame] | 1373 | ring->flush = gen6_render_ring_flush; |
Ben Widawsky | 25c0630 | 2012-03-29 19:11:27 -0700 | [diff] [blame] | 1374 | ring->irq_get = gen6_ring_get_irq; |
| 1375 | ring->irq_put = gen6_ring_put_irq; |
Daniel Vetter | 6a848cc | 2012-04-11 22:12:46 +0200 | [diff] [blame] | 1376 | ring->irq_enable_mask = GT_USER_INTERRUPT; |
Daniel Vetter | 4cd53c0 | 2012-12-14 16:01:25 +0100 | [diff] [blame] | 1377 | ring->get_seqno = gen6_ring_get_seqno; |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 1378 | ring->sync_to = gen6_ring_sync; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1379 | ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_INVALID; |
| 1380 | ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_RV; |
| 1381 | ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_RB; |
| 1382 | ring->signal_mbox[0] = GEN6_VRSYNC; |
| 1383 | ring->signal_mbox[1] = GEN6_BRSYNC; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 1384 | } else if (IS_GEN5(dev)) { |
| 1385 | ring->add_request = pc_render_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 1386 | ring->flush = gen4_render_ring_flush; |
Chris Wilson | c6df541 | 2010-12-15 09:56:50 +0000 | [diff] [blame] | 1387 | ring->get_seqno = pc_render_get_seqno; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1388 | ring->irq_get = gen5_ring_get_irq; |
| 1389 | ring->irq_put = gen5_ring_put_irq; |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 1390 | ring->irq_enable_mask = GT_USER_INTERRUPT | GT_PIPE_NOTIFY; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1391 | } else { |
Daniel Vetter | 8620a3a | 2012-04-11 22:12:57 +0200 | [diff] [blame] | 1392 | ring->add_request = i9xx_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 1393 | if (INTEL_INFO(dev)->gen < 4) |
| 1394 | ring->flush = gen2_render_ring_flush; |
| 1395 | else |
| 1396 | ring->flush = gen4_render_ring_flush; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1397 | ring->get_seqno = ring_get_seqno; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1398 | if (IS_GEN2(dev)) { |
| 1399 | ring->irq_get = i8xx_ring_get_irq; |
| 1400 | ring->irq_put = i8xx_ring_put_irq; |
| 1401 | } else { |
| 1402 | ring->irq_get = i9xx_ring_get_irq; |
| 1403 | ring->irq_put = i9xx_ring_put_irq; |
| 1404 | } |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 1405 | ring->irq_enable_mask = I915_USER_INTERRUPT; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1406 | } |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1407 | ring->write_tail = ring_write_tail; |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 1408 | if (INTEL_INFO(dev)->gen >= 6) |
| 1409 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
| 1410 | else if (INTEL_INFO(dev)->gen >= 4) |
| 1411 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
| 1412 | else if (IS_I830(dev) || IS_845G(dev)) |
| 1413 | ring->dispatch_execbuffer = i830_dispatch_execbuffer; |
| 1414 | else |
| 1415 | ring->dispatch_execbuffer = i915_dispatch_execbuffer; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1416 | ring->init = init_render_ring; |
| 1417 | ring->cleanup = render_ring_cleanup; |
| 1418 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1419 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1420 | if (!I915_NEED_GFX_HWS(dev)) { |
| 1421 | ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr; |
| 1422 | memset(ring->status_page.page_addr, 0, PAGE_SIZE); |
| 1423 | } |
| 1424 | |
| 1425 | return intel_init_ring_buffer(dev, ring); |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1426 | } |
| 1427 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1428 | int intel_render_ring_init_dri(struct drm_device *dev, u64 start, u32 size) |
| 1429 | { |
| 1430 | drm_i915_private_t *dev_priv = dev->dev_private; |
| 1431 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; |
| 1432 | |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1433 | ring->name = "render ring"; |
| 1434 | ring->id = RCS; |
| 1435 | ring->mmio_base = RENDER_RING_BASE; |
| 1436 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1437 | if (INTEL_INFO(dev)->gen >= 6) { |
Daniel Vetter | b4178f8 | 2012-04-11 22:12:51 +0200 | [diff] [blame] | 1438 | /* non-kms not supported on gen6+ */ |
| 1439 | return -ENODEV; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1440 | } |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 1441 | |
| 1442 | /* Note: gem is not supported on gen5/ilk without kms (the corresponding |
| 1443 | * gem_init ioctl returns with -ENODEV). Hence we do not need to set up |
| 1444 | * the special gen5 functions. */ |
| 1445 | ring->add_request = i9xx_add_request; |
Chris Wilson | 46f0f8d | 2012-04-18 11:12:11 +0100 | [diff] [blame] | 1446 | if (INTEL_INFO(dev)->gen < 4) |
| 1447 | ring->flush = gen2_render_ring_flush; |
| 1448 | else |
| 1449 | ring->flush = gen4_render_ring_flush; |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 1450 | ring->get_seqno = ring_get_seqno; |
Chris Wilson | c2798b1 | 2012-04-22 21:13:57 +0100 | [diff] [blame] | 1451 | if (IS_GEN2(dev)) { |
| 1452 | ring->irq_get = i8xx_ring_get_irq; |
| 1453 | ring->irq_put = i8xx_ring_put_irq; |
| 1454 | } else { |
| 1455 | ring->irq_get = i9xx_ring_get_irq; |
| 1456 | ring->irq_put = i9xx_ring_put_irq; |
| 1457 | } |
Daniel Vetter | 28f0cbf | 2012-04-11 22:12:58 +0200 | [diff] [blame] | 1458 | ring->irq_enable_mask = I915_USER_INTERRUPT; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1459 | ring->write_tail = ring_write_tail; |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 1460 | if (INTEL_INFO(dev)->gen >= 4) |
| 1461 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
| 1462 | else if (IS_I830(dev) || IS_845G(dev)) |
| 1463 | ring->dispatch_execbuffer = i830_dispatch_execbuffer; |
| 1464 | else |
| 1465 | ring->dispatch_execbuffer = i915_dispatch_execbuffer; |
Daniel Vetter | 59465b5 | 2012-04-11 22:12:48 +0200 | [diff] [blame] | 1466 | ring->init = init_render_ring; |
| 1467 | ring->cleanup = render_ring_cleanup; |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1468 | |
Keith Packard | f323470 | 2011-07-22 10:44:39 -0700 | [diff] [blame] | 1469 | if (!I915_NEED_GFX_HWS(dev)) |
| 1470 | ring->status_page.page_addr = dev_priv->status_page_dmah->vaddr; |
| 1471 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1472 | ring->dev = dev; |
| 1473 | INIT_LIST_HEAD(&ring->active_list); |
| 1474 | INIT_LIST_HEAD(&ring->request_list); |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1475 | |
| 1476 | ring->size = size; |
| 1477 | ring->effective_size = ring->size; |
| 1478 | if (IS_I830(ring->dev)) |
| 1479 | ring->effective_size -= 128; |
| 1480 | |
Daniel Vetter | 4225d0f | 2012-04-26 23:28:16 +0200 | [diff] [blame] | 1481 | ring->virtual_start = ioremap_wc(start, size); |
| 1482 | if (ring->virtual_start == NULL) { |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1483 | DRM_ERROR("can not ioremap virtual address for" |
| 1484 | " ring buffer\n"); |
| 1485 | return -ENOMEM; |
| 1486 | } |
| 1487 | |
Chris Wilson | e8616b6 | 2011-01-20 09:57:11 +0000 | [diff] [blame] | 1488 | return 0; |
| 1489 | } |
| 1490 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1491 | int intel_init_bsd_ring_buffer(struct drm_device *dev) |
| 1492 | { |
| 1493 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1494 | struct intel_ring_buffer *ring = &dev_priv->ring[VCS]; |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1495 | |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1496 | ring->name = "bsd ring"; |
| 1497 | ring->id = VCS; |
| 1498 | |
Daniel Vetter | 0fd2c20 | 2012-04-11 22:12:55 +0200 | [diff] [blame] | 1499 | ring->write_tail = ring_write_tail; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1500 | if (IS_GEN6(dev) || IS_GEN7(dev)) { |
| 1501 | ring->mmio_base = GEN6_BSD_RING_BASE; |
Daniel Vetter | 0fd2c20 | 2012-04-11 22:12:55 +0200 | [diff] [blame] | 1502 | /* gen6 bsd needs a special wa for tail updates */ |
| 1503 | if (IS_GEN6(dev)) |
| 1504 | ring->write_tail = gen6_bsd_ring_write_tail; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1505 | ring->flush = gen6_ring_flush; |
| 1506 | ring->add_request = gen6_add_request; |
| 1507 | ring->get_seqno = gen6_ring_get_seqno; |
| 1508 | ring->irq_enable_mask = GEN6_BSD_USER_INTERRUPT; |
| 1509 | ring->irq_get = gen6_ring_get_irq; |
| 1510 | ring->irq_put = gen6_ring_put_irq; |
| 1511 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 1512 | ring->sync_to = gen6_ring_sync; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1513 | ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_VR; |
| 1514 | ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_INVALID; |
| 1515 | ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_VB; |
| 1516 | ring->signal_mbox[0] = GEN6_RVSYNC; |
| 1517 | ring->signal_mbox[1] = GEN6_BVSYNC; |
| 1518 | } else { |
| 1519 | ring->mmio_base = BSD_RING_BASE; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1520 | ring->flush = bsd_ring_flush; |
Daniel Vetter | 8620a3a | 2012-04-11 22:12:57 +0200 | [diff] [blame] | 1521 | ring->add_request = i9xx_add_request; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1522 | ring->get_seqno = ring_get_seqno; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1523 | if (IS_GEN5(dev)) { |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 1524 | ring->irq_enable_mask = GT_BSD_USER_INTERRUPT; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1525 | ring->irq_get = gen5_ring_get_irq; |
| 1526 | ring->irq_put = gen5_ring_put_irq; |
| 1527 | } else { |
Daniel Vetter | e367031 | 2012-04-11 22:12:53 +0200 | [diff] [blame] | 1528 | ring->irq_enable_mask = I915_BSD_USER_INTERRUPT; |
Daniel Vetter | e48d863 | 2012-04-11 22:12:54 +0200 | [diff] [blame] | 1529 | ring->irq_get = i9xx_ring_get_irq; |
| 1530 | ring->irq_put = i9xx_ring_put_irq; |
| 1531 | } |
Daniel Vetter | fb3256d | 2012-04-11 22:12:56 +0200 | [diff] [blame] | 1532 | ring->dispatch_execbuffer = i965_dispatch_execbuffer; |
Daniel Vetter | 58fa383 | 2012-04-11 22:12:49 +0200 | [diff] [blame] | 1533 | } |
| 1534 | ring->init = init_ring_common; |
| 1535 | |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1536 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1537 | return intel_init_ring_buffer(dev, ring); |
Xiang, Haihao | 5c1143b | 2010-09-16 10:43:11 +0800 | [diff] [blame] | 1538 | } |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1539 | |
| 1540 | int intel_init_blt_ring_buffer(struct drm_device *dev) |
| 1541 | { |
| 1542 | drm_i915_private_t *dev_priv = dev->dev_private; |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1543 | struct intel_ring_buffer *ring = &dev_priv->ring[BCS]; |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1544 | |
Daniel Vetter | 3535d9d | 2012-04-11 22:12:50 +0200 | [diff] [blame] | 1545 | ring->name = "blitter ring"; |
| 1546 | ring->id = BCS; |
| 1547 | |
| 1548 | ring->mmio_base = BLT_RING_BASE; |
| 1549 | ring->write_tail = ring_write_tail; |
| 1550 | ring->flush = blt_ring_flush; |
| 1551 | ring->add_request = gen6_add_request; |
| 1552 | ring->get_seqno = gen6_ring_get_seqno; |
| 1553 | ring->irq_enable_mask = GEN6_BLITTER_USER_INTERRUPT; |
| 1554 | ring->irq_get = gen6_ring_get_irq; |
| 1555 | ring->irq_put = gen6_ring_put_irq; |
| 1556 | ring->dispatch_execbuffer = gen6_ring_dispatch_execbuffer; |
Daniel Vetter | 686cb5f | 2012-04-11 22:12:52 +0200 | [diff] [blame] | 1557 | ring->sync_to = gen6_ring_sync; |
Daniel Vetter | 3535d9d | 2012-04-11 22:12:50 +0200 | [diff] [blame] | 1558 | ring->semaphore_register[0] = MI_SEMAPHORE_SYNC_BR; |
| 1559 | ring->semaphore_register[1] = MI_SEMAPHORE_SYNC_BV; |
| 1560 | ring->semaphore_register[2] = MI_SEMAPHORE_SYNC_INVALID; |
| 1561 | ring->signal_mbox[0] = GEN6_RBSYNC; |
| 1562 | ring->signal_mbox[1] = GEN6_VBSYNC; |
| 1563 | ring->init = init_ring_common; |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1564 | |
Chris Wilson | 1ec14ad | 2010-12-04 11:30:53 +0000 | [diff] [blame] | 1565 | return intel_init_ring_buffer(dev, ring); |
Chris Wilson | 549f736 | 2010-10-19 11:19:32 +0100 | [diff] [blame] | 1566 | } |
Chris Wilson | a7b9761 | 2012-07-20 12:41:08 +0100 | [diff] [blame^] | 1567 | |
| 1568 | int |
| 1569 | intel_ring_flush_all_caches(struct intel_ring_buffer *ring) |
| 1570 | { |
| 1571 | int ret; |
| 1572 | |
| 1573 | if (!ring->gpu_caches_dirty) |
| 1574 | return 0; |
| 1575 | |
| 1576 | ret = ring->flush(ring, 0, I915_GEM_GPU_DOMAINS); |
| 1577 | if (ret) |
| 1578 | return ret; |
| 1579 | |
| 1580 | trace_i915_gem_ring_flush(ring, 0, I915_GEM_GPU_DOMAINS); |
| 1581 | |
| 1582 | ring->gpu_caches_dirty = false; |
| 1583 | return 0; |
| 1584 | } |
| 1585 | |
| 1586 | int |
| 1587 | intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring) |
| 1588 | { |
| 1589 | uint32_t flush_domains; |
| 1590 | int ret; |
| 1591 | |
| 1592 | flush_domains = 0; |
| 1593 | if (ring->gpu_caches_dirty) |
| 1594 | flush_domains = I915_GEM_GPU_DOMAINS; |
| 1595 | |
| 1596 | ret = ring->flush(ring, I915_GEM_GPU_DOMAINS, flush_domains); |
| 1597 | if (ret) |
| 1598 | return ret; |
| 1599 | |
| 1600 | trace_i915_gem_ring_flush(ring, I915_GEM_GPU_DOMAINS, flush_domains); |
| 1601 | |
| 1602 | ring->gpu_caches_dirty = false; |
| 1603 | return 0; |
| 1604 | } |