[Mesa-dev] [PATCH] r600g: Implement GL_ARB_draw_indirect
Glenn Kennard
glenn.kennard at gmail.com
Sat Nov 8 14:52:46 PST 2014
Requires evergreen/cayman, and updated radeon kernel module.
Signed-off-by: Glenn Kennard <glenn.kennard at gmail.com>
---
See also kernel side patch sent to dri-devel at lists.freedesktop.org
docs/GL3.txt | 4 +-
docs/relnotes/10.4.html | 1 +
src/gallium/drivers/r600/evergreend.h | 7 ++-
src/gallium/drivers/r600/r600_pipe.c | 6 ++-
src/gallium/drivers/r600/r600_state_common.c | 80 ++++++++++++++++++++++------
5 files changed, 77 insertions(+), 21 deletions(-)
diff --git a/docs/GL3.txt b/docs/GL3.txt
index 2854431..06c52f9 100644
--- a/docs/GL3.txt
+++ b/docs/GL3.txt
@@ -95,7 +95,7 @@ GL 3.3, GLSL 3.30 --- all DONE: i965, nv50, nvc0, r600, radeonsi, llvmpipe, soft
GL 4.0, GLSL 4.00:
GL_ARB_draw_buffers_blend DONE (i965, nv50, nvc0, r600, radeonsi, llvmpipe, softpipe)
- GL_ARB_draw_indirect DONE (i965, nvc0, radeonsi, llvmpipe, softpipe)
+ GL_ARB_draw_indirect DONE (i965, nvc0, r600, radeonsi, llvmpipe, softpipe)
GL_ARB_gpu_shader5 DONE (i965, nvc0)
- 'precise' qualifier DONE
- Dynamically uniform sampler array indices DONE (r600)
@@ -159,7 +159,7 @@ GL 4.3, GLSL 4.30:
GL_ARB_framebuffer_no_attachments not started
GL_ARB_internalformat_query2 not started
GL_ARB_invalidate_subdata DONE (all drivers)
- GL_ARB_multi_draw_indirect DONE (i965, nvc0, radeonsi, llvmpipe, softpipe)
+ GL_ARB_multi_draw_indirect DONE (i965, nvc0, r600, radeonsi, llvmpipe, softpipe)
GL_ARB_program_interface_query not started
GL_ARB_robust_buffer_access_behavior not started
GL_ARB_shader_image_size not started
diff --git a/docs/relnotes/10.4.html b/docs/relnotes/10.4.html
index d0fbd3b..9c2a491 100644
--- a/docs/relnotes/10.4.html
+++ b/docs/relnotes/10.4.html
@@ -49,6 +49,7 @@ Note: some of the new features are only available with certain drivers.
<li>GL_ARB_texture_view on nv50, nvc0</li>
<li>GL_ARB_clip_control on llvmpipe, softpipe, r300, r600, radeonsi</li>
<li>GL_KHR_context_flush_control on all drivers</li>
+<li>GL_ARB_draw_indirect, GL_ARB_multi_draw_indirect on r600</li>
</ul>
diff --git a/src/gallium/drivers/r600/evergreend.h b/src/gallium/drivers/r600/evergreend.h
index 4989996..b8880c8 100644
--- a/src/gallium/drivers/r600/evergreend.h
+++ b/src/gallium/drivers/r600/evergreend.h
@@ -64,6 +64,8 @@
#define R600_TEXEL_PITCH_ALIGNMENT_MASK 0x7
#define PKT3_NOP 0x10
+#define PKT3_SET_BASE 0x11
+#define PKT3_INDEX_BUFFER_SIZE 0x13
#define PKT3_DEALLOC_STATE 0x14
#define PKT3_DISPATCH_DIRECT 0x15
#define PKT3_DISPATCH_INDIRECT 0x16
@@ -72,12 +74,15 @@
#define PKT3_REG_RMW 0x21
#define PKT3_COND_EXEC 0x22
#define PKT3_PRED_EXEC 0x23
-#define PKT3_START_3D_CMDBUF 0x24
+#define PKT3_DRAW_INDIRECT 0x24
+#define PKT3_DRAW_INDEX_INDIRECT 0x25
+#define PKT3_INDEX_BASE 0x26
#define PKT3_DRAW_INDEX_2 0x27
#define PKT3_CONTEXT_CONTROL 0x28
#define PKT3_DRAW_INDEX_IMMD_BE 0x29
#define PKT3_INDEX_TYPE 0x2A
#define PKT3_DRAW_INDEX 0x2B
+#define PKT3_DRAW_INDIRECT_MULTI 0x2C
#define PKT3_DRAW_INDEX_AUTO 0x2D
#define PKT3_DRAW_INDEX_IMMD 0x2E
#define PKT3_NUM_INSTANCES 0x2F
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index 0b571e4..829deaf 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -313,6 +313,11 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
return family >= CHIP_CEDAR ? 1 : 0;
case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
return family >= CHIP_CEDAR ? 4 : 0;
+ case PIPE_CAP_DRAW_INDIRECT:
+ /* needs kernel command checking support to work */
+ if (family >= CHIP_CEDAR && rscreen->b.info.drm_minor >= 41)
+ return 1;
+ return 0;
/* Unsupported features. */
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
@@ -322,7 +327,6 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
case PIPE_CAP_VERTEX_COLOR_CLAMPED:
case PIPE_CAP_USER_VERTEX_BUFFERS:
case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
- case PIPE_CAP_DRAW_INDIRECT:
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
return 0;
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index c3f21cb..649bf24 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -1362,7 +1362,7 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
unsigned i;
struct radeon_winsys_cs *cs = rctx->b.rings.gfx.cs;
- if (!info.count && (info.indexed || !info.count_from_stream_output)) {
+ if (!info.indirect && !info.count && (info.indexed || !info.count_from_stream_output)) {
return;
}
@@ -1391,7 +1391,7 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
ib.offset = rctx->index_buffer.offset + info.start * ib.index_size;
/* Translate 8-bit indices to 16-bit. */
- if (ib.index_size == 1) {
+ if (unlikely(ib.index_size == 1)) {
struct pipe_resource *out_buffer = NULL;
unsigned out_offset;
void *ptr;
@@ -1414,7 +1414,8 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
* and the indices are emitted via PKT3_DRAW_INDEX_IMMD.
* Note: Instanced rendering in combination with immediate indices hangs. */
if (ib.user_buffer && (R600_BIG_ENDIAN || info.instance_count > 1 ||
- info.count*ib.index_size > 20)) {
+ info.count*ib.index_size > 20 ||
+ info.indirect)) {
u_upload_data(rctx->b.uploader, 0, info.count * ib.index_size,
ib.user_buffer, &ib.offset, &ib.buffer);
ib.user_buffer = NULL;
@@ -1521,6 +1522,21 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
/* Draw packets. */
cs->buf[cs->cdw++] = PKT3(PKT3_NUM_INSTANCES, 0, rctx->b.predicate_drawing);
cs->buf[cs->cdw++] = info.instance_count;
+
+ if (unlikely(info.indirect)) {
+ uint64_t va = r600_resource(info.indirect)->gpu_address;
+ assert(rctx->b.chip_class >= EVERGREEN);
+ cs->buf[cs->cdw++] = PKT3(0x11 /* PKT3_SET_BASE */, 2, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = 1; // 1 means DX11 Draw_Index_Indirect Patch Table Base
+ cs->buf[cs->cdw++] = va;
+ cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+
+ cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = r600_context_bo_reloc(&rctx->b, &rctx->b.rings.gfx,
+ (struct r600_resource*)info.indirect,
+ RADEON_USAGE_READ, RADEON_PRIO_MIN);
+ }
+
if (info.indexed) {
cs->buf[cs->cdw++] = PKT3(PKT3_INDEX_TYPE, 0, rctx->b.predicate_drawing);
cs->buf[cs->cdw++] = ib.index_size == 4 ?
@@ -1537,18 +1553,40 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
cs->cdw += size_dw;
} else {
uint64_t va = r600_resource(ib.buffer)->gpu_address + ib.offset;
- cs->buf[cs->cdw++] = PKT3(PKT3_DRAW_INDEX, 3, rctx->b.predicate_drawing);
- cs->buf[cs->cdw++] = va;
- cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
- cs->buf[cs->cdw++] = info.count;
- cs->buf[cs->cdw++] = V_0287F0_DI_SRC_SEL_DMA;
- cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, rctx->b.predicate_drawing);
- cs->buf[cs->cdw++] = r600_context_bo_reloc(&rctx->b, &rctx->b.rings.gfx,
- (struct r600_resource*)ib.buffer,
- RADEON_USAGE_READ, RADEON_PRIO_MIN);
+
+ if (likely(!info.indirect)) {
+ cs->buf[cs->cdw++] = PKT3(PKT3_DRAW_INDEX, 3, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = va;
+ cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+ cs->buf[cs->cdw++] = info.count;
+ cs->buf[cs->cdw++] = V_0287F0_DI_SRC_SEL_DMA;
+ cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = r600_context_bo_reloc(&rctx->b, &rctx->b.rings.gfx,
+ (struct r600_resource*)ib.buffer,
+ RADEON_USAGE_READ, RADEON_PRIO_MIN);
+ }
+ else {
+ uint32_t max_size = (ib.buffer->width0 - ib.offset) / ib.index_size;
+
+ cs->buf[cs->cdw++] = PKT3(0x26 /* PKT3_INDEX_BASE */, 1, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = va;
+ cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+
+ cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = r600_context_bo_reloc(&rctx->b, &rctx->b.rings.gfx,
+ (struct r600_resource*)ib.buffer,
+ RADEON_USAGE_READ, RADEON_PRIO_MIN);
+
+ cs->buf[cs->cdw++] = PKT3(0x13 /* PKT3_INDEX_BUFFER_SIZE */, 0, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = max_size;
+
+ cs->buf[cs->cdw++] = PKT3(0x25 /* PKT3_DRAW_INDEX_INDIRECT */, 1, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = info.indirect_offset;
+ cs->buf[cs->cdw++] = V_0287F0_DI_SRC_SEL_DMA;
+ }
}
} else {
- if (info.count_from_stream_output) {
+ if (unlikely(info.count_from_stream_output)) {
struct r600_so_target *t = (struct r600_so_target*)info.count_from_stream_output;
uint64_t va = t->buf_filled_size->gpu_address + t->buf_filled_size_offset;
@@ -1567,10 +1605,18 @@ static void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info
RADEON_PRIO_MIN);
}
- cs->buf[cs->cdw++] = PKT3(PKT3_DRAW_INDEX_AUTO, 1, rctx->b.predicate_drawing);
- cs->buf[cs->cdw++] = info.count;
- cs->buf[cs->cdw++] = V_0287F0_DI_SRC_SEL_AUTO_INDEX |
- (info.count_from_stream_output ? S_0287F0_USE_OPAQUE(1) : 0);
+ if (likely(!info.indirect)) {
+ cs->buf[cs->cdw++] = PKT3(PKT3_DRAW_INDEX_AUTO, 1, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = info.count;
+ cs->buf[cs->cdw++] = V_0287F0_DI_SRC_SEL_AUTO_INDEX |
+ (info.count_from_stream_output ? S_0287F0_USE_OPAQUE(1) : 0);
+ }
+ else {
+ cs->buf[cs->cdw++] = PKT3(0x24 /* PKT3_DRAW_INDIRECT */, 1, rctx->b.predicate_drawing);
+ cs->buf[cs->cdw++] = info.indirect_offset;
+ cs->buf[cs->cdw++] = V_0287F0_DI_SRC_SEL_AUTO_INDEX |
+ (info.count_from_stream_output ? S_0287F0_USE_OPAQUE(1) : 0);
+ }
}
if (rctx->screen->b.trace_bo) {
--
1.9.1
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