Mesa (master): radeonsi: implement sdma for GFX9
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Wed Dec 4 08:55:03 UTC 2019
Module: Mesa
Branch: master
Commit: 082d1c168649edc6dc0f83e452347011905713d8
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=082d1c168649edc6dc0f83e452347011905713d8
Author: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
Date: Fri Nov 29 14:01:10 2019 +0100
radeonsi: implement sdma for GFX9
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
---
src/gallium/drivers/radeonsi/cik_sdma.c | 197 +++++++++++++++++++++++++++++++-
1 file changed, 191 insertions(+), 6 deletions(-)
diff --git a/src/gallium/drivers/radeonsi/cik_sdma.c b/src/gallium/drivers/radeonsi/cik_sdma.c
index af905f66c99..52a41f7ee51 100644
--- a/src/gallium/drivers/radeonsi/cik_sdma.c
+++ b/src/gallium/drivers/radeonsi/cik_sdma.c
@@ -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,
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