radeonsi: implement sdma for GFX9
authorPierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Fri, 29 Nov 2019 13:01:10 +0000 (14:01 +0100)
committerPierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Wed, 4 Dec 2019 08:08:28 +0000 (09:08 +0100)
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
src/gallium/drivers/radeonsi/cik_sdma.c

index af905f66c99de1c06043ea0eb56401a29269381b..52a41f7ee519ece64e07759f14575a42e05354fc 100644 (file)
@@ -106,6 +106,186 @@ static unsigned encode_tile_info(struct si_context *sctx,
                (G_009910_PIPE_CONFIG(tile_mode) << 26);
 }
 
+
+static bool si_sdma_v4_copy_texture(struct si_context *sctx,
+                                 struct pipe_resource *dst,
+                                 unsigned dst_level,
+                                 unsigned dstx, unsigned dsty, unsigned dstz,
+                                 struct pipe_resource *src,
+                                 unsigned src_level,
+                                 const struct pipe_box *src_box)
+{
+       struct si_texture *ssrc = (struct si_texture*)src;
+       struct si_texture *sdst = (struct si_texture*)dst;
+
+       unsigned bpp = sdst->surface.bpe;
+       uint64_t dst_address = sdst->buffer.gpu_address +
+               sdst->surface.u.gfx9.surf_offset;
+       uint64_t src_address = ssrc->buffer.gpu_address +
+               ssrc->surface.u.gfx9.surf_offset;
+       unsigned dst_pitch = sdst->surface.u.gfx9.surf_pitch;
+       unsigned src_pitch = ssrc->surface.u.gfx9.surf_pitch;
+       uint64_t dst_slice_pitch = ((uint64_t)sdst->surface.u.gfx9.surf_slice_size) / bpp;
+       uint64_t src_slice_pitch = ((uint64_t)ssrc->surface.u.gfx9.surf_slice_size) / bpp;
+       unsigned srcx = src_box->x / ssrc->surface.blk_w;
+       unsigned srcy = src_box->y / ssrc->surface.blk_h;
+       unsigned srcz = src_box->z;
+       unsigned copy_width = DIV_ROUND_UP(src_box->width, ssrc->surface.blk_w);
+       unsigned copy_height = DIV_ROUND_UP(src_box->height, ssrc->surface.blk_h);
+       unsigned copy_depth = src_box->depth;
+       unsigned xalign = MAX2(1, 4 / bpp);
+
+       assert(src_level <= src->last_level);
+       assert(dst_level <= dst->last_level);
+       assert(sdst->surface.u.gfx9.surf_offset +
+              dst_slice_pitch * bpp * (dstz + src_box->depth) <=
+              sdst->buffer.buf->size);
+       assert(ssrc->surface.u.gfx9.surf_offset +
+              src_slice_pitch * bpp * (srcz + src_box->depth) <=
+              ssrc->buffer.buf->size);
+
+       if (!si_prepare_for_dma_blit(sctx, sdst, dst_level, dstx, dsty,
+                                    dstz, ssrc, src_level, src_box))
+               return false;
+
+       dstx /= sdst->surface.blk_w;
+       dsty /= sdst->surface.blk_h;
+
+       if (srcx >= (1 << 14) ||
+           srcy >= (1 << 14) ||
+           srcz >= (1 << 11) ||
+           dstx >= (1 << 14) ||
+           dsty >= (1 << 14) ||
+           dstz >= (1 << 11))
+               return false;
+
+       /* Linear -> linear sub-window copy. */
+       if (ssrc->surface.is_linear &&
+           sdst->surface.is_linear) {
+               struct radeon_cmdbuf *cs = sctx->dma_cs;
+
+               /* Check if everything fits into the bitfields */
+               if (!(src_pitch <= (1 << 19) &&
+                     dst_pitch <= (1 << 19) &&
+                     src_slice_pitch <= (1 << 28) &&
+                     dst_slice_pitch <= (1 << 28) &&
+                     copy_width <= (1 << 14) &&
+                     copy_height <= (1 << 14) &&
+                     copy_depth <= (1 << 11)))
+                       return false;
+
+               si_need_dma_space(sctx, 13, &sdst->buffer, &ssrc->buffer);
+
+               src_address += ssrc->surface.u.gfx9.offset[src_level];
+               dst_address += sdst->surface.u.gfx9.offset[dst_level];
+
+               /* Check alignments */
+               if ((src_address % 4) != 0 ||
+                   (dst_address % 4) != 0 ||
+                   (src_pitch % xalign) != 0)
+                       return false;
+
+               radeon_emit(cs, CIK_SDMA_PACKET(CIK_SDMA_OPCODE_COPY,
+                                               CIK_SDMA_COPY_SUB_OPCODE_LINEAR_SUB_WINDOW, 0) |
+                           (util_logbase2(bpp) << 29));
+               radeon_emit(cs, src_address);
+               radeon_emit(cs, src_address >> 32);
+               radeon_emit(cs, srcx | (srcy << 16));
+               radeon_emit(cs, srcz | ((src_pitch - 1) << 13));
+               radeon_emit(cs, src_slice_pitch - 1);
+               radeon_emit(cs, dst_address);
+               radeon_emit(cs, dst_address >> 32);
+               radeon_emit(cs, dstx | (dsty << 16));
+               radeon_emit(cs, dstz | ((dst_pitch - 1) << 13));
+               radeon_emit(cs, dst_slice_pitch - 1);
+               radeon_emit(cs, (copy_width - 1) | ((copy_height - 1) << 16));
+               radeon_emit(cs, (copy_depth - 1));
+               return true;
+       }
+
+       /* Linear <-> Tiled sub-window copy */
+       if (ssrc->surface.is_linear != sdst->surface.is_linear) {
+               struct si_texture *tiled = ssrc->surface.is_linear ? sdst : ssrc;
+               struct si_texture *linear = tiled == ssrc ? sdst : ssrc;
+               unsigned tiled_level =  tiled   == ssrc ? src_level : dst_level;
+               unsigned linear_level = linear  == ssrc ? src_level : dst_level;
+               unsigned tiled_x =      tiled   == ssrc ? srcx : dstx;
+               unsigned linear_x =     linear  == ssrc ? srcx : dstx;
+               unsigned tiled_y =      tiled   == ssrc ? srcy : dsty;
+               unsigned linear_y =     linear  == ssrc ? srcy : dsty;
+               unsigned tiled_z =      tiled   == ssrc ? srcz : dstz;
+               unsigned linear_z =     linear  == ssrc ? srcz : dstz;
+               unsigned tiled_width = tiled == ssrc ?
+                       DIV_ROUND_UP(ssrc->buffer.b.b.width0, ssrc->surface.blk_w) :
+                       DIV_ROUND_UP(sdst->buffer.b.b.width0, sdst->surface.blk_w);
+               unsigned tiled_height = tiled == ssrc ?
+                       DIV_ROUND_UP(ssrc->buffer.b.b.height0, ssrc->surface.blk_h) :
+                       DIV_ROUND_UP(sdst->buffer.b.b.height0, sdst->surface.blk_h);
+               unsigned tiled_depth =  tiled   == ssrc ?
+                       ssrc->buffer.b.b.depth0 :
+                       sdst->buffer.b.b.depth0;
+               unsigned linear_pitch = linear  == ssrc ? src_pitch : dst_pitch;
+               unsigned linear_slice_pitch = linear == ssrc ? src_slice_pitch : dst_slice_pitch;
+               uint64_t tiled_address =  tiled  == ssrc ? src_address : dst_address;
+               uint64_t linear_address = linear == ssrc ? src_address : dst_address;
+               struct radeon_cmdbuf *cs = sctx->dma_cs;
+
+               linear_address += linear->surface.u.gfx9.offset[linear_level];
+
+               /* Check if everything fits into the bitfields */
+               if (!(tiled_x <= (1 << 14) &&
+                     tiled_y <= (1 << 14) &&
+                     tiled_z <= (1 << 11) &&
+                     tiled_width <= (1 << 14) &&
+                     tiled_height <= (1 << 14) &&
+                     tiled_depth <= (1 << 11) &&
+                     tiled->surface.u.gfx9.surf.epitch <= (1 << 16) &&
+                     linear_x <= (1 << 14) &&
+                     linear_y <= (1 << 14) &&
+                     linear_z <= (1 << 11) &&
+                     linear_pitch <= (1 << 14) &&
+                     linear_slice_pitch <= (1 << 28) &&
+                     copy_width <= (1 << 14) &&
+                     copy_height <= (1 << 14) &&
+                     copy_depth <= (1 << 11)))
+                       return false;
+
+               /* Check alignments */
+               if ((tiled_address % 256 != 0) ||
+                   (linear_address % 4 != 0) ||
+                   (linear_pitch % xalign != 0) ||
+                   (linear_slice_pitch % xalign != 0))
+                       return false;
+
+               si_need_dma_space(sctx, 14, &sdst->buffer, &ssrc->buffer);
+
+               radeon_emit(cs, CIK_SDMA_PACKET(CIK_SDMA_OPCODE_COPY,
+                                               CIK_SDMA_COPY_SUB_OPCODE_TILED_SUB_WINDOW, 0) |
+                                               tiled->buffer.b.b.last_level << 20 |
+                                               tiled_level << 24 |
+                                               (linear == sdst ? 1u : 0) << 31);
+               radeon_emit(cs, (uint32_t) tiled_address);
+               radeon_emit(cs, (uint32_t) (tiled_address >> 32));
+               radeon_emit(cs, tiled_x | (tiled_y << 16));
+               radeon_emit(cs, tiled_z | ((tiled_width - 1) << 16));
+               radeon_emit(cs, (tiled_height - 1) | (tiled_depth - 1) << 16);
+               radeon_emit(cs, util_logbase2(bpp) |
+                               tiled->surface.u.gfx9.surf.swizzle_mode << 3 |
+                               tiled->surface.u.gfx9.resource_type << 9 |
+                               tiled->surface.u.gfx9.surf.epitch << 16);
+               radeon_emit(cs, (uint32_t) linear_address);
+               radeon_emit(cs, (uint32_t) (linear_address >> 32));
+               radeon_emit(cs, linear_x | (linear_y << 16));
+               radeon_emit(cs, linear_z | ((linear_pitch - 1) << 16));
+               radeon_emit(cs, linear_slice_pitch - 1);
+               radeon_emit(cs, (copy_width - 1) | ((copy_height - 1) << 16));
+               radeon_emit(cs, (copy_depth - 1));
+               return true;
+       }
+
+       return false;
+}
+
 static bool cik_sdma_copy_texture(struct si_context *sctx,
                                  struct pipe_resource *dst,
                                  unsigned dst_level,
@@ -517,12 +697,17 @@ static void cik_sdma_copy(struct pipe_context *ctx,
         *
         * Keep SDMA enabled on APUs.
         */
-       if ((sctx->screen->debug_flags & DBG(FORCE_DMA) ||
-            !sctx->screen->info.has_dedicated_vram) &&
-           (sctx->chip_class == GFX7 || sctx->chip_class == GFX8) &&
-           cik_sdma_copy_texture(sctx, dst, dst_level, dstx, dsty, dstz,
-                                 src, src_level, src_box))
-               return;
+       if (sctx->screen->debug_flags & DBG(FORCE_DMA) ||
+           !sctx->screen->info.has_dedicated_vram) {
+               if ((sctx->chip_class == GFX7 || sctx->chip_class == GFX8) &&
+                   cik_sdma_copy_texture(sctx, dst, dst_level, dstx, dsty, dstz,
+                                         src, src_level, src_box))
+                       return;
+               else if (sctx->chip_class == GFX9 &&
+                        si_sdma_v4_copy_texture(sctx, dst, dst_level, dstx, dsty, dstz,
+                                                src, src_level, src_box))
+                       return;
+       }
 
 fallback:
        si_resource_copy_region(ctx, dst, dst_level, dstx, dsty, dstz,