* descriptor */
};
-/* Set this if you want the 3D engine to wait until CP DMA is done.
- * It should be set on the last CP DMA packet. */
-#define R600_CP_DMA_SYNC (1 << 0) /* R600+ */
-
-/* Set this if the source data was used as a destination in a previous CP DMA
- * packet. It's for preventing a read-after-write (RAW) hazard between two
- * CP DMA packets. */
-#define SI_CP_DMA_RAW_WAIT (1 << 1) /* SI+ */
-#define CIK_CP_DMA_USE_L2 (1 << 2)
-
-/* Emit a CP DMA packet to do a copy from one buffer to another.
- * The size must fit in bits [20:0].
- */
-static void si_emit_cp_dma_copy_buffer(struct si_context *sctx,
- uint64_t dst_va, uint64_t src_va,
- unsigned size, unsigned flags)
-{
- struct radeon_winsys_cs *cs = sctx->b.rings.gfx.cs;
- uint32_t sync_flag = flags & R600_CP_DMA_SYNC ? PKT3_CP_DMA_CP_SYNC : 0;
- uint32_t raw_wait = flags & SI_CP_DMA_RAW_WAIT ? PKT3_CP_DMA_CMD_RAW_WAIT : 0;
- uint32_t sel = flags & CIK_CP_DMA_USE_L2 ?
- PKT3_CP_DMA_SRC_SEL(3) | PKT3_CP_DMA_DST_SEL(3) : 0;
-
- assert(size);
- assert((size & ((1<<21)-1)) == size);
-
- if (sctx->b.chip_class >= CIK) {
- radeon_emit(cs, PKT3(PKT3_DMA_DATA, 5, 0));
- radeon_emit(cs, sync_flag | sel); /* CP_SYNC [31] */
- radeon_emit(cs, src_va); /* SRC_ADDR_LO [31:0] */
- radeon_emit(cs, src_va >> 32); /* SRC_ADDR_HI [31:0] */
- radeon_emit(cs, dst_va); /* DST_ADDR_LO [31:0] */
- radeon_emit(cs, dst_va >> 32); /* DST_ADDR_HI [31:0] */
- radeon_emit(cs, size | raw_wait); /* COMMAND [29:22] | BYTE_COUNT [20:0] */
- } else {
- radeon_emit(cs, PKT3(PKT3_CP_DMA, 4, 0));
- radeon_emit(cs, src_va); /* SRC_ADDR_LO [31:0] */
- radeon_emit(cs, sync_flag | ((src_va >> 32) & 0xffff)); /* CP_SYNC [31] | SRC_ADDR_HI [15:0] */
- radeon_emit(cs, dst_va); /* DST_ADDR_LO [31:0] */
- radeon_emit(cs, (dst_va >> 32) & 0xffff); /* DST_ADDR_HI [15:0] */
- radeon_emit(cs, size | raw_wait); /* COMMAND [29:22] | BYTE_COUNT [20:0] */
- }
-}
-
-/* Emit a CP DMA packet to clear a buffer. The size must fit in bits [20:0]. */
-static void si_emit_cp_dma_clear_buffer(struct si_context *sctx,
- uint64_t dst_va, unsigned size,
- uint32_t clear_value, unsigned flags)
-{
- struct radeon_winsys_cs *cs = sctx->b.rings.gfx.cs;
- uint32_t sync_flag = flags & R600_CP_DMA_SYNC ? PKT3_CP_DMA_CP_SYNC : 0;
- uint32_t raw_wait = flags & SI_CP_DMA_RAW_WAIT ? PKT3_CP_DMA_CMD_RAW_WAIT : 0;
- uint32_t dst_sel = flags & CIK_CP_DMA_USE_L2 ? PKT3_CP_DMA_DST_SEL(3) : 0;
-
- assert(size);
- assert((size & ((1<<21)-1)) == size);
-
- if (sctx->b.chip_class >= CIK) {
- radeon_emit(cs, PKT3(PKT3_DMA_DATA, 5, 0));
- radeon_emit(cs, sync_flag | dst_sel | PKT3_CP_DMA_SRC_SEL(2)); /* CP_SYNC [31] | SRC_SEL[30:29] */
- radeon_emit(cs, clear_value); /* DATA [31:0] */
- radeon_emit(cs, 0);
- radeon_emit(cs, dst_va); /* DST_ADDR_LO [31:0] */
- radeon_emit(cs, dst_va >> 32); /* DST_ADDR_HI [15:0] */
- radeon_emit(cs, size | raw_wait); /* COMMAND [29:22] | BYTE_COUNT [20:0] */
- } else {
- radeon_emit(cs, PKT3(PKT3_CP_DMA, 4, 0));
- radeon_emit(cs, clear_value); /* DATA [31:0] */
- radeon_emit(cs, sync_flag | PKT3_CP_DMA_SRC_SEL(2)); /* CP_SYNC [31] | SRC_SEL[30:29] */
- radeon_emit(cs, dst_va); /* DST_ADDR_LO [31:0] */
- radeon_emit(cs, (dst_va >> 32) & 0xffff); /* DST_ADDR_HI [15:0] */
- radeon_emit(cs, size | raw_wait); /* COMMAND [29:22] | BYTE_COUNT [20:0] */
- }
-}
-
static void si_init_descriptors(struct si_descriptors *desc,
unsigned shader_userdata_index,
unsigned element_dw_size,
}
}
-/* CP DMA */
-
-/* The max number of bytes to copy per packet. */
-#define CP_DMA_MAX_BYTE_COUNT ((1 << 21) - 8)
-
-static void si_clear_buffer(struct pipe_context *ctx, struct pipe_resource *dst,
- unsigned offset, unsigned size, unsigned value,
- bool is_framebuffer)
-{
- struct si_context *sctx = (struct si_context*)ctx;
- unsigned flush_flags, tc_l2_flag;
-
- if (!size)
- return;
-
- /* Mark the buffer range of destination as valid (initialized),
- * so that transfer_map knows it should wait for the GPU when mapping
- * that range. */
- util_range_add(&r600_resource(dst)->valid_buffer_range, offset,
- offset + size);
-
- /* Fallback for unaligned clears. */
- if (offset % 4 != 0 || size % 4 != 0) {
- uint32_t *map = sctx->b.ws->buffer_map(r600_resource(dst)->cs_buf,
- sctx->b.rings.gfx.cs,
- PIPE_TRANSFER_WRITE);
- size /= 4;
- for (unsigned i = 0; i < size; i++)
- *map++ = value;
- return;
- }
-
- uint64_t va = r600_resource(dst)->gpu_address + offset;
-
- /* Flush the caches where the resource is bound. */
- if (is_framebuffer) {
- flush_flags = SI_CONTEXT_FLUSH_AND_INV_FRAMEBUFFER;
- tc_l2_flag = 0;
- } else {
- flush_flags = SI_CONTEXT_INV_TC_L1 |
- (sctx->b.chip_class == SI ? SI_CONTEXT_INV_TC_L2 : 0) |
- SI_CONTEXT_INV_KCACHE;
- tc_l2_flag = sctx->b.chip_class == SI ? 0 : CIK_CP_DMA_USE_L2;
- }
-
- sctx->b.flags |= SI_CONTEXT_PS_PARTIAL_FLUSH |
- flush_flags;
-
- while (size) {
- unsigned byte_count = MIN2(size, CP_DMA_MAX_BYTE_COUNT);
- unsigned dma_flags = tc_l2_flag;
-
- si_need_cs_space(sctx, 7 + (sctx->b.flags ? sctx->cache_flush.num_dw : 0),
- FALSE);
-
- /* This must be done after need_cs_space. */
- r600_context_bo_reloc(&sctx->b, &sctx->b.rings.gfx,
- (struct r600_resource*)dst, RADEON_USAGE_WRITE,
- RADEON_PRIO_MIN);
-
- /* Flush the caches for the first copy only.
- * Also wait for the previous CP DMA operations. */
- if (sctx->b.flags) {
- si_emit_cache_flush(&sctx->b, NULL);
- dma_flags |= SI_CP_DMA_RAW_WAIT; /* same as WAIT_UNTIL=CP_DMA_IDLE */
- }
-
- /* Do the synchronization after the last copy, so that all data is written to memory. */
- if (size == byte_count)
- dma_flags |= R600_CP_DMA_SYNC;
-
- /* Emit the clear packet. */
- si_emit_cp_dma_clear_buffer(sctx, va, byte_count, value, dma_flags);
-
- size -= byte_count;
- va += byte_count;
- }
-
- /* Flush the caches again in case the 3D engine has been prefetching
- * the resource. */
- sctx->b.flags |= flush_flags;
-
- if (tc_l2_flag)
- r600_resource(dst)->TC_L2_dirty = true;
-}
-
-void si_copy_buffer(struct si_context *sctx,
- struct pipe_resource *dst, struct pipe_resource *src,
- uint64_t dst_offset, uint64_t src_offset, unsigned size,
- bool is_framebuffer)
-{
- unsigned flush_flags, tc_l2_flag;
-
- if (!size)
- return;
-
- /* Mark the buffer range of destination as valid (initialized),
- * so that transfer_map knows it should wait for the GPU when mapping
- * that range. */
- util_range_add(&r600_resource(dst)->valid_buffer_range, dst_offset,
- dst_offset + size);
-
- dst_offset += r600_resource(dst)->gpu_address;
- src_offset += r600_resource(src)->gpu_address;
-
- /* Flush the caches where the resource is bound. */
- if (is_framebuffer) {
- flush_flags = SI_CONTEXT_FLUSH_AND_INV_FRAMEBUFFER;
- tc_l2_flag = 0;
- } else {
- flush_flags = SI_CONTEXT_INV_TC_L1 |
- (sctx->b.chip_class == SI ? SI_CONTEXT_INV_TC_L2 : 0) |
- SI_CONTEXT_INV_KCACHE;
- tc_l2_flag = sctx->b.chip_class == SI ? 0 : CIK_CP_DMA_USE_L2;
- }
-
- sctx->b.flags |= SI_CONTEXT_PS_PARTIAL_FLUSH |
- flush_flags;
-
- while (size) {
- unsigned sync_flags = tc_l2_flag;
- unsigned byte_count = MIN2(size, CP_DMA_MAX_BYTE_COUNT);
-
- si_need_cs_space(sctx, 7 + (sctx->b.flags ? sctx->cache_flush.num_dw : 0), FALSE);
-
- /* Flush the caches for the first copy only. Also wait for old CP DMA packets to complete. */
- if (sctx->b.flags) {
- si_emit_cache_flush(&sctx->b, NULL);
- sync_flags |= SI_CP_DMA_RAW_WAIT;
- }
-
- /* Do the synchronization after the last copy, so that all data is written to memory. */
- if (size == byte_count) {
- sync_flags |= R600_CP_DMA_SYNC;
- }
-
- /* This must be done after r600_need_cs_space. */
- r600_context_bo_reloc(&sctx->b, &sctx->b.rings.gfx, (struct r600_resource*)src,
- RADEON_USAGE_READ, RADEON_PRIO_MIN);
- r600_context_bo_reloc(&sctx->b, &sctx->b.rings.gfx, (struct r600_resource*)dst,
- RADEON_USAGE_WRITE, RADEON_PRIO_MIN);
-
- si_emit_cp_dma_copy_buffer(sctx, dst_offset, src_offset, byte_count, sync_flags);
-
- size -= byte_count;
- src_offset += byte_count;
- dst_offset += byte_count;
- }
-
- /* Flush the caches again in case the 3D engine has been prefetching
- * the resource. */
- sctx->b.flags |= flush_flags;
-
- if (tc_l2_flag)
- r600_resource(dst)->TC_L2_dirty = true;
-}
-
/* SHADER USER DATA */
static void si_mark_shader_pointers_dirty(struct si_context *sctx,
sctx->b.b.set_constant_buffer = si_set_constant_buffer;
sctx->b.b.set_sampler_views = si_set_sampler_views;
sctx->b.b.set_stream_output_targets = si_set_streamout_targets;
- sctx->b.clear_buffer = si_clear_buffer;
sctx->b.invalidate_buffer = si_invalidate_buffer;
/* Shader user data. */
projects / mesa.git / blobdiff