Eric Anholt | 8c64183 | 2009-03-26 17:15:11 -0700 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * |
| 3 | * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. |
| 4 | * All Rights Reserved. |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 7 | * copy of this software and associated documentation files (the |
| 8 | * "Software"), to deal in the Software without restriction, including |
| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
| 11 | * permit persons to whom the Software is furnished to do so, subject to |
| 12 | * the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice (including the |
| 15 | * next paragraph) shall be included in all copies or substantial portions |
| 16 | * of the Software. |
| 17 | * |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| 21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
| 22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 25 | * |
| 26 | **************************************************************************/ |
| 27 | |
| 28 | #include <inttypes.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <stdio.h> |
| 31 | #include <string.h> |
| 32 | #include <assert.h> |
Chris Wilson | 9537422 | 2010-04-08 11:56:57 +0100 | [diff] [blame] | 33 | |
Eric Anholt | 8c64183 | 2009-03-26 17:15:11 -0700 | [diff] [blame] | 34 | #include "drm.h" |
| 35 | #include "intel_batchbuffer.h" |
| 36 | #include "intel_bufmgr.h" |
Chris Wilson | 9537422 | 2010-04-08 11:56:57 +0100 | [diff] [blame] | 37 | #include "intel_chipset.h" |
| 38 | #include "intel_reg.h" |
| 39 | #include <i915_drm.h> |
Eric Anholt | 8c64183 | 2009-03-26 17:15:11 -0700 | [diff] [blame] | 40 | |
| 41 | void |
| 42 | intel_batchbuffer_reset(struct intel_batchbuffer *batch) |
| 43 | { |
| 44 | if (batch->bo != NULL) { |
| 45 | drm_intel_bo_unreference(batch->bo); |
| 46 | batch->bo = NULL; |
| 47 | } |
| 48 | |
| 49 | if (!batch->buffer) |
| 50 | batch->buffer = malloc(BATCH_SZ); |
| 51 | |
| 52 | batch->bo = drm_intel_bo_alloc(batch->bufmgr, "batchbuffer", |
| 53 | BATCH_SZ, 4096); |
| 54 | |
| 55 | batch->map = batch->buffer; |
| 56 | batch->size = BATCH_SZ; |
| 57 | batch->ptr = batch->map; |
| 58 | } |
| 59 | |
| 60 | struct intel_batchbuffer * |
Chris Wilson | d4d769a | 2010-10-26 10:59:18 +0100 | [diff] [blame^] | 61 | intel_batchbuffer_alloc(drm_intel_bufmgr *bufmgr, uint32_t devid) |
Eric Anholt | 8c64183 | 2009-03-26 17:15:11 -0700 | [diff] [blame] | 62 | { |
| 63 | struct intel_batchbuffer *batch = calloc(sizeof(*batch), 1); |
| 64 | |
| 65 | batch->bufmgr = bufmgr; |
Chris Wilson | d4d769a | 2010-10-26 10:59:18 +0100 | [diff] [blame^] | 66 | batch->devid = devid; |
Eric Anholt | 8c64183 | 2009-03-26 17:15:11 -0700 | [diff] [blame] | 67 | intel_batchbuffer_reset(batch); |
| 68 | |
| 69 | return batch; |
| 70 | } |
| 71 | |
| 72 | void |
| 73 | intel_batchbuffer_free(struct intel_batchbuffer *batch) |
| 74 | { |
| 75 | free (batch->buffer); |
| 76 | |
| 77 | drm_intel_bo_unreference(batch->bo); |
| 78 | batch->bo = NULL; |
| 79 | free(batch); |
| 80 | } |
| 81 | |
| 82 | void |
| 83 | intel_batchbuffer_flush(struct intel_batchbuffer *batch) |
| 84 | { |
| 85 | unsigned int used = batch->ptr - batch->map; |
Chris Wilson | d4d769a | 2010-10-26 10:59:18 +0100 | [diff] [blame^] | 86 | int ring; |
Eric Anholt | 8c64183 | 2009-03-26 17:15:11 -0700 | [diff] [blame] | 87 | int ret; |
| 88 | |
| 89 | if (used == 0) |
| 90 | return; |
| 91 | |
| 92 | /* Round batchbuffer usage to 2 DWORDs. */ |
| 93 | if ((used & 4) == 0) { |
| 94 | *(uint32_t *) (batch->ptr) = 0; /* noop */ |
| 95 | batch->ptr += 4; |
| 96 | used = batch->ptr - batch->map; |
| 97 | } |
| 98 | |
| 99 | /* Mark the end of the buffer. */ |
| 100 | *(uint32_t *) (batch->ptr) = MI_BATCH_BUFFER_END; /* noop */ |
| 101 | batch->ptr += 4; |
| 102 | used = batch->ptr - batch->map; |
| 103 | |
| 104 | drm_intel_bo_subdata(batch->bo, 0, used, batch->buffer); |
| 105 | |
| 106 | batch->map = NULL; |
| 107 | batch->ptr = NULL; |
| 108 | |
Chris Wilson | d4d769a | 2010-10-26 10:59:18 +0100 | [diff] [blame^] | 109 | ring = 0; |
| 110 | if (IS_GEN6(batch->devid)) |
| 111 | ring = I915_EXEC_BLT; |
| 112 | ret = drm_intel_bo_mrb_exec(batch->bo, used, NULL, 0, 0, ring); |
Eric Anholt | 8c64183 | 2009-03-26 17:15:11 -0700 | [diff] [blame] | 113 | assert(ret == 0); |
| 114 | |
| 115 | intel_batchbuffer_reset(batch); |
| 116 | } |
| 117 | |
| 118 | |
| 119 | /* This is the only way buffers get added to the validate list. |
| 120 | */ |
| 121 | void |
| 122 | intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch, |
| 123 | drm_intel_bo *buffer, uint32_t delta, |
| 124 | uint32_t read_domains, uint32_t write_domain) |
| 125 | { |
| 126 | int ret; |
| 127 | |
| 128 | if (batch->ptr - batch->map > batch->bo->size) |
| 129 | printf("bad relocation ptr %p map %p offset %d size %ld\n", |
| 130 | batch->ptr, batch->map, batch->ptr - batch->map, |
| 131 | batch->bo->size); |
| 132 | |
| 133 | ret = drm_intel_bo_emit_reloc(batch->bo, batch->ptr - batch->map, |
| 134 | buffer, delta, |
| 135 | read_domains, write_domain); |
| 136 | intel_batchbuffer_emit_dword(batch, buffer->offset + delta); |
| 137 | assert(ret == 0); |
| 138 | } |
| 139 | |
| 140 | void |
| 141 | intel_batchbuffer_data(struct intel_batchbuffer *batch, |
| 142 | const void *data, unsigned int bytes) |
| 143 | { |
| 144 | assert((bytes & 3) == 0); |
| 145 | intel_batchbuffer_require_space(batch, bytes); |
| 146 | memcpy(batch->ptr, data, bytes); |
| 147 | batch->ptr += bytes; |
| 148 | } |
Chris Wilson | 9537422 | 2010-04-08 11:56:57 +0100 | [diff] [blame] | 149 | |
| 150 | void |
| 151 | intel_copy_bo(struct intel_batchbuffer *batch, |
| 152 | drm_intel_bo *dst_bo, drm_intel_bo *src_bo, |
Chris Wilson | d4d769a | 2010-10-26 10:59:18 +0100 | [diff] [blame^] | 153 | int width, int height) |
Chris Wilson | 9537422 | 2010-04-08 11:56:57 +0100 | [diff] [blame] | 154 | { |
| 155 | uint32_t src_tiling, dst_tiling, swizzle; |
| 156 | uint32_t src_pitch, dst_pitch; |
| 157 | uint32_t cmd_bits = 0; |
| 158 | |
| 159 | drm_intel_bo_get_tiling(src_bo, &src_tiling, &swizzle); |
| 160 | drm_intel_bo_get_tiling(dst_bo, &dst_tiling, &swizzle); |
| 161 | |
| 162 | src_pitch = width * 4; |
Chris Wilson | d4d769a | 2010-10-26 10:59:18 +0100 | [diff] [blame^] | 163 | if (IS_965(batch->devid) && src_tiling != I915_TILING_NONE) { |
Chris Wilson | 9537422 | 2010-04-08 11:56:57 +0100 | [diff] [blame] | 164 | src_pitch /= 4; |
| 165 | cmd_bits |= XY_SRC_COPY_BLT_SRC_TILED; |
| 166 | } |
| 167 | |
| 168 | dst_pitch = width * 4; |
Chris Wilson | d4d769a | 2010-10-26 10:59:18 +0100 | [diff] [blame^] | 169 | if (IS_965(batch->devid) && dst_tiling != I915_TILING_NONE) { |
Chris Wilson | 9537422 | 2010-04-08 11:56:57 +0100 | [diff] [blame] | 170 | dst_pitch /= 4; |
| 171 | cmd_bits |= XY_SRC_COPY_BLT_DST_TILED; |
| 172 | } |
| 173 | |
| 174 | BEGIN_BATCH(8); |
| 175 | OUT_BATCH(XY_SRC_COPY_BLT_CMD | |
| 176 | XY_SRC_COPY_BLT_WRITE_ALPHA | |
| 177 | XY_SRC_COPY_BLT_WRITE_RGB | |
| 178 | cmd_bits); |
| 179 | OUT_BATCH((3 << 24) | /* 32 bits */ |
| 180 | (0xcc << 16) | /* copy ROP */ |
| 181 | dst_pitch); |
| 182 | OUT_BATCH(0); /* dst x1,y1 */ |
| 183 | OUT_BATCH((height << 16) | width); /* dst x2,y2 */ |
| 184 | OUT_RELOC(dst_bo, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0); |
| 185 | OUT_BATCH(0); /* src x1,y1 */ |
| 186 | OUT_BATCH(src_pitch); |
| 187 | OUT_RELOC(src_bo, I915_GEM_DOMAIN_RENDER, 0, 0); |
| 188 | ADVANCE_BATCH(); |
| 189 | |
| 190 | intel_batchbuffer_flush(batch); |
| 191 | } |