[Mesa-dev] [PATCH 18/18] gallium/u_blitter: don't set up VBOs if there are no VS inputs
Marek Olšák
maraeo at gmail.com
Thu Aug 17 18:31:39 UTC 2017
From: Marek Olšák <marek.olsak at amd.com>
let's skip these state changes
---
src/gallium/auxiliary/util/u_blitter.c | 95 +++++++++++++++++++--------
src/gallium/drivers/radeon/r600_pipe_common.c | 79 +++++++++++-----------
2 files changed, 109 insertions(+), 65 deletions(-)
diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c
index 2d0d782..bebef8e 100644
--- a/src/gallium/auxiliary/util/u_blitter.c
+++ b/src/gallium/auxiliary/util/u_blitter.c
@@ -109,20 +109,21 @@ struct blitter_context_priv
/* Depth stencil alpha state. */
void *dsa_write_depth_stencil;
void *dsa_write_depth_keep_stencil;
void *dsa_keep_depth_stencil;
void *dsa_keep_depth_write_stencil;
/* Vertex elements states. */
void *velem_state;
void *velem_state_readbuf[4]; /**< X, XY, XYZ, XYZW */
+ bool had_vs_inputs;
/* Sampler state. */
void *sampler_state;
void *sampler_state_linear;
void *sampler_state_rect;
void *sampler_state_rect_linear;
/* Rasterizer state. */
void *rs_state, *rs_state_scissor, *rs_discard_state;
@@ -567,27 +568,31 @@ static void blitter_check_saved_vertex_states(struct blitter_context_priv *ctx)
assert(ctx->base.saved_rs_state != INVALID_PTR);
}
void util_blitter_restore_vertex_states(struct blitter_context *blitter)
{
struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
struct pipe_context *pipe = ctx->base.pipe;
unsigned i;
/* Vertex buffer. */
- pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1,
- &ctx->base.saved_vertex_buffer);
+ if (ctx->had_vs_inputs) {
+ pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1,
+ &ctx->base.saved_vertex_buffer);
+ }
pipe_vertex_buffer_unreference(&ctx->base.saved_vertex_buffer);
/* Vertex elements. */
- pipe->bind_vertex_elements_state(pipe, ctx->base.saved_velem_state);
+ if (ctx->had_vs_inputs)
+ pipe->bind_vertex_elements_state(pipe, ctx->base.saved_velem_state);
ctx->base.saved_velem_state = INVALID_PTR;
+ ctx->had_vs_inputs = false;
/* Vertex shader. */
pipe->bind_vs_state(pipe, ctx->base.saved_vs);
ctx->base.saved_vs = INVALID_PTR;
/* Geometry shader. */
if (ctx->has_geometry_shader) {
pipe->bind_gs_state(pipe, ctx->base.saved_gs);
ctx->base.saved_gs = INVALID_PTR;
}
@@ -1240,46 +1245,54 @@ static void blitter_set_common_draw_rect_state(struct blitter_context_priv *ctx,
if (ctx->has_tessellation) {
pipe->bind_tcs_state(pipe, NULL);
pipe->bind_tes_state(pipe, NULL);
}
if (ctx->has_stream_out)
pipe->set_stream_output_targets(pipe, 0, NULL, NULL);
}
static void blitter_draw(struct blitter_context_priv *ctx,
int x1, int y1, int x2, int y2, float depth,
- unsigned num_instances)
+ unsigned num_instances,
+ enum blitter_attrib_type type)
{
struct pipe_context *pipe = ctx->base.pipe;
struct pipe_vertex_buffer vb = {0};
blitter_set_rectangle(ctx, x1, y1, x2, y2, depth);
- if (ctx->has_vertex_id) {
- vb.stride = 4 * sizeof(float);
+ /* NONE doesn't have any GENERIC input. If VertexID is supported, POSITION
+ * is generated from VertexID, so there are no vertex attributes.
+ */
+ if (!ctx->has_vertex_id || type != UTIL_BLITTER_ATTRIB_NONE) {
+ if (ctx->has_vertex_id) {
+ vb.stride = 4 * sizeof(float);
- /* Align vertices to a cache line. */
- u_upload_data(pipe->stream_uploader, 0, sizeof(ctx->vertices_nopos), 64,
- ctx->vertices_nopos, &vb.buffer_offset,
- &vb.buffer.resource);
- } else {
- vb.stride = 8 * sizeof(float);
+ /* Align vertices to a cache line. */
+ u_upload_data(pipe->stream_uploader, 0, sizeof(ctx->vertices_nopos), 64,
+ ctx->vertices_nopos, &vb.buffer_offset,
+ &vb.buffer.resource);
+ } else {
+ vb.stride = 8 * sizeof(float);
+
+ /* Align vertices to a cache line. */
+ u_upload_data(pipe->stream_uploader, 0, sizeof(ctx->vertices), 64,
+ ctx->vertices, &vb.buffer_offset, &vb.buffer.resource);
+ }
+
+ if (!vb.buffer.resource)
+ return;
+ u_upload_unmap(pipe->stream_uploader);
- /* Align vertices to a cache line. */
- u_upload_data(pipe->stream_uploader, 0, sizeof(ctx->vertices), 64,
- ctx->vertices, &vb.buffer_offset, &vb.buffer.resource);
+ pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1, &vb);
}
- if (!vb.buffer.resource)
- return;
- u_upload_unmap(pipe->stream_uploader);
- pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1, &vb);
util_draw_arrays_instanced(pipe, PIPE_PRIM_TRIANGLE_FAN, 0, 4,
0, num_instances);
pipe_resource_reference(&vb.buffer.resource, NULL);
}
void util_blitter_draw_rectangle(struct blitter_context *blitter,
int x1, int y1, int x2, int y2,
float depth, unsigned num_instances,
enum blitter_attrib_type type,
const union blitter_attrib *attrib)
@@ -1308,21 +1321,21 @@ void util_blitter_draw_rectangle(struct blitter_context *blitter,
case UTIL_BLITTER_ATTRIB_TEXCOORD_XY:
if (ctx->has_vertex_id)
set_texcoords_in_vertices(attrib, &ctx->vertices_nopos[0][0], 4);
else
set_texcoords_in_vertices(attrib, &ctx->vertices[0][1][0], 8);
break;
default:;
}
- blitter_draw(ctx, x1, y1, x2, y2, depth, num_instances);
+ blitter_draw(ctx, x1, y1, x2, y2, depth, num_instances, type);
}
static void *get_clear_blend_state(struct blitter_context_priv *ctx,
unsigned clear_buffers)
{
struct pipe_context *pipe = ctx->base.pipe;
int index;
clear_buffers &= PIPE_CLEAR_COLOR;
@@ -1391,36 +1404,40 @@ static void util_blitter_clear_custom(struct blitter_context *blitter,
unsigned width, unsigned height,
unsigned num_layers,
unsigned clear_buffers,
const union pipe_color_union *color,
double depth, unsigned stencil,
void *custom_blend, void *custom_dsa)
{
struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
struct pipe_context *pipe = ctx->base.pipe;
struct pipe_stencil_ref sr = { { 0 } };
+ bool pass_generic = (clear_buffers & PIPE_CLEAR_COLOR) != 0;
assert(ctx->has_layered || num_layers <= 1);
util_blitter_common_clear_setup(blitter, clear_buffers,
custom_blend, custom_dsa);
sr.ref_value[0] = stencil & 0xff;
pipe->set_stencil_ref(pipe, &sr);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ if (!ctx->has_vertex_id || pass_generic) {
+ pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ ctx->had_vs_inputs = true;
+ }
+
bind_fs_write_all_cbufs(ctx);
union blitter_attrib attrib;
memcpy(attrib.color, color->ui, sizeof(color->ui));
- bool pass_generic = (clear_buffers & PIPE_CLEAR_COLOR) != 0;
enum blitter_attrib_type type = pass_generic ? UTIL_BLITTER_ATTRIB_COLOR :
UTIL_BLITTER_ATTRIB_NONE;
if (num_layers > 1 && ctx->has_layered) {
blitter_set_common_draw_rect_state(ctx, false, true, pass_generic);
blitter->draw_rectangle(blitter, 0, 0, width, height, (float) depth,
num_layers, type, &attrib);
} else {
blitter_set_common_draw_rect_state(ctx, false, false, pass_generic);
blitter->draw_rectangle(blitter, 0, 0, width, height, (float) depth,
@@ -1660,21 +1677,21 @@ blitter_draw_tex(struct blitter_context_priv *ctx,
util_map_texcoords2d_onto_cubemap((unsigned)layer % 6,
/* pointer, stride in floats */
&face_coord[0][0], 2,
&ctx->vertices[0][1][0], 8,
false);
for (unsigned i = 0; i < 4; i++)
ctx->vertices[i][1][3] = coord.texcoord.w;
}
/* Cubemaps don't use draw_rectangle. */
- blitter_draw(ctx, dst_x1, dst_y1, dst_x2, dst_y2, 0, 1);
+ blitter_draw(ctx, dst_x1, dst_y1, dst_x2, dst_y2, 0, 1, type);
} else {
ctx->base.draw_rectangle(&ctx->base, dst_x1, dst_y1, dst_x2, dst_y2, 0,
1, type, &coord);
}
}
static void do_blits(struct blitter_context_priv *ctx,
struct pipe_surface *dst,
const struct pipe_box *dstbox,
struct pipe_sampler_view *src,
@@ -1968,20 +1985,22 @@ void util_blitter_blit_generic(struct blitter_context *blitter,
0, 1, &sampler_state);
pipe_sampler_view_reference(&view, NULL);
} else {
pipe->set_sampler_views(pipe, PIPE_SHADER_FRAGMENT, 0, 1, &src);
pipe->bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT,
0, 1, &sampler_state);
}
pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ ctx->had_vs_inputs = true;
+
if (scissor) {
pipe->set_scissor_states(pipe, 0, 1, scissor);
}
blitter_set_common_draw_rect_state(ctx, scissor != NULL, false, true);
do_blits(ctx, dst, dstbox, src, src_width0, src_height0,
srcbox, blit_depth || blit_stencil, use_txf);
util_blitter_restore_vertex_states(blitter);
@@ -2079,20 +2098,22 @@ void util_blitter_generate_mipmap(struct blitter_context *blitter,
if (target == PIPE_TEXTURE_RECT) {
sampler_state = ctx->sampler_state_rect_linear;
} else {
sampler_state = ctx->sampler_state_linear;
}
pipe->bind_sampler_states(pipe, PIPE_SHADER_FRAGMENT,
0, 1, &sampler_state);
pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ ctx->had_vs_inputs = true;
+
blitter_set_common_draw_rect_state(ctx, false, false, true);
for (src_level = base_level; src_level < last_level; src_level++) {
struct pipe_box dstbox = {0}, srcbox = {0};
unsigned dst_level = src_level + 1;
dstbox.width = u_minify(tex->width0, dst_level);
dstbox.height = u_minify(tex->height0, dst_level);
srcbox.width = u_minify(tex->width0, src_level);
@@ -2154,21 +2175,23 @@ void util_blitter_clear_render_target(struct blitter_context *blitter,
util_blitter_set_running_flag(blitter);
blitter_check_saved_vertex_states(ctx);
blitter_check_saved_fragment_states(ctx);
blitter_check_saved_fb_state(ctx);
blitter_disable_render_cond(ctx);
/* bind states */
pipe->bind_blend_state(pipe, ctx->blend[PIPE_MASK_RGBA][0]);
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
bind_fs_write_one_cbuf(ctx);
+
pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ ctx->had_vs_inputs = true;
/* set a framebuffer state */
fb_state.width = dstsurf->width;
fb_state.height = dstsurf->height;
fb_state.nr_cbufs = 1;
fb_state.cbufs[0] = dstsurf;
fb_state.zsbuf = 0;
pipe->set_framebuffer_state(pipe, &fb_state);
pipe->set_sample_mask(pipe, ~0);
@@ -2232,21 +2255,25 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
else if (clear_flags & PIPE_CLEAR_STENCIL) {
sr.ref_value[0] = stencil & 0xff;
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil);
pipe->set_stencil_ref(pipe, &sr);
}
else
/* hmm that should be illegal probably, or make it a no-op somewhere */
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
bind_fs_empty(ctx);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+
+ if (!ctx->has_vertex_id) {
+ pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ ctx->had_vs_inputs = true;
+ }
/* set a framebuffer state */
fb_state.width = dstsurf->width;
fb_state.height = dstsurf->height;
fb_state.nr_cbufs = 0;
fb_state.cbufs[0] = 0;
fb_state.zsbuf = dstsurf;
pipe->set_framebuffer_state(pipe, &fb_state);
pipe->set_sample_mask(pipe, ~0);
@@ -2293,21 +2320,25 @@ void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
blitter_disable_render_cond(ctx);
/* bind states */
pipe->bind_blend_state(pipe, cbsurf ? ctx->blend[PIPE_MASK_RGBA][0] :
ctx->blend[0][0]);
pipe->bind_depth_stencil_alpha_state(pipe, dsa_stage);
if (cbsurf)
bind_fs_write_one_cbuf(ctx);
else
bind_fs_empty(ctx);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+
+ if (!ctx->has_vertex_id) {
+ pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ ctx->had_vs_inputs = true;
+ }
/* set a framebuffer state */
fb_state.width = zsurf->width;
fb_state.height = zsurf->height;
fb_state.nr_cbufs = 1;
if (cbsurf) {
fb_state.cbufs[0] = cbsurf;
fb_state.nr_cbufs = 1;
} else {
fb_state.cbufs[0] = NULL;
@@ -2369,20 +2400,22 @@ void util_blitter_copy_buffer(struct blitter_context *blitter,
blitter_check_saved_vertex_states(ctx);
blitter_disable_render_cond(ctx);
vb.is_user_buffer = false;
vb.buffer.resource = src;
vb.buffer_offset = srcx;
vb.stride = 4;
pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1, &vb);
pipe->bind_vertex_elements_state(pipe, ctx->velem_state_readbuf[0]);
+ ctx->had_vs_inputs = true;
+
bind_vs_pos_only(ctx, 1);
if (ctx->has_geometry_shader)
pipe->bind_gs_state(pipe, NULL);
if (ctx->has_tessellation) {
pipe->bind_tcs_state(pipe, NULL);
pipe->bind_tes_state(pipe, NULL);
}
pipe->bind_rasterizer_state(pipe, ctx->rs_discard_state);
so_target = pipe->create_stream_output_target(pipe, dst, dstx, size);
@@ -2436,20 +2469,22 @@ void util_blitter_clear_buffer(struct blitter_context *blitter,
vb.stride = 0;
util_blitter_set_running_flag(blitter);
blitter_check_saved_vertex_states(ctx);
blitter_disable_render_cond(ctx);
pipe->set_vertex_buffers(pipe, ctx->base.vb_slot, 1, &vb);
pipe->bind_vertex_elements_state(pipe,
ctx->velem_state_readbuf[num_channels-1]);
+ ctx->had_vs_inputs = true;
+
bind_vs_pos_only(ctx, num_channels);
if (ctx->has_geometry_shader)
pipe->bind_gs_state(pipe, NULL);
if (ctx->has_tessellation) {
pipe->bind_tcs_state(pipe, NULL);
pipe->bind_tes_state(pipe, NULL);
}
pipe->bind_rasterizer_state(pipe, ctx->rs_discard_state);
so_target = pipe->create_stream_output_target(pipe, dst, offset, size);
@@ -2482,21 +2517,24 @@ void util_blitter_custom_resolve_color(struct blitter_context *blitter,
struct pipe_surface *srcsurf, *dstsurf, surf_tmpl;
util_blitter_set_running_flag(blitter);
blitter_check_saved_vertex_states(ctx);
blitter_check_saved_fragment_states(ctx);
blitter_disable_render_cond(ctx);
/* bind states */
pipe->bind_blend_state(pipe, custom_blend);
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ if (!ctx->has_vertex_id) {
+ pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ ctx->had_vs_inputs = true;
+ }
bind_fs_write_one_cbuf(ctx);
pipe->set_sample_mask(pipe, sample_mask);
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
surf_tmpl.format = format;
surf_tmpl.u.tex.level = dst_level;
surf_tmpl.u.tex.first_layer = dst_layer;
surf_tmpl.u.tex.last_layer = dst_layer;
dstsurf = pipe->create_surface(pipe, dst, &surf_tmpl);
@@ -2546,21 +2584,24 @@ void util_blitter_custom_color(struct blitter_context *blitter,
blitter_check_saved_vertex_states(ctx);
blitter_check_saved_fragment_states(ctx);
blitter_check_saved_fb_state(ctx);
blitter_disable_render_cond(ctx);
/* bind states */
pipe->bind_blend_state(pipe, custom_blend ? custom_blend
: ctx->blend[PIPE_MASK_RGBA][0]);
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
bind_fs_write_one_cbuf(ctx);
- pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ if (!ctx->has_vertex_id) {
+ pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
+ ctx->had_vs_inputs = true;
+ }
pipe->set_sample_mask(pipe, (1ull << MAX2(1, dstsurf->texture->nr_samples)) - 1);
/* set a framebuffer state */
fb_state.width = dstsurf->width;
fb_state.height = dstsurf->height;
fb_state.nr_cbufs = 1;
fb_state.cbufs[0] = dstsurf;
fb_state.zsbuf = 0;
pipe->set_framebuffer_state(pipe, &fb_state);
pipe->set_sample_mask(pipe, ~0);
diff --git a/src/gallium/drivers/radeon/r600_pipe_common.c b/src/gallium/drivers/radeon/r600_pipe_common.c
index 3539803..f3bd181 100644
--- a/src/gallium/drivers/radeon/r600_pipe_common.c
+++ b/src/gallium/drivers/radeon/r600_pipe_common.c
@@ -206,80 +206,83 @@ void r600_gfx_wait_fence(struct r600_common_context *ctx,
void r600_draw_rectangle(struct blitter_context *blitter,
int x1, int y1, int x2, int y2,
float depth, unsigned num_instances,
enum blitter_attrib_type type,
const union blitter_attrib *attrib)
{
struct r600_common_context *rctx =
(struct r600_common_context*)util_blitter_get_pipe(blitter);
struct pipe_viewport_state viewport;
- struct pipe_resource *buf = NULL;
- unsigned offset = 0;
- float *vb;
/* Some operations (like color resolve on r6xx) don't work
* with the conventional primitive types.
* One that works is PT_RECTLIST, which we use here. */
/* setup viewport */
int width = x2 - x1;
int height = y2 - y1;
viewport.scale[0] = width / 2.0;
viewport.scale[1] = height / 2.0;
viewport.scale[2] = 0;
viewport.translate[0] = width / 2.0 + x1;
viewport.translate[1] = height / 2.0 + y1;
viewport.translate[2] = depth;
rctx->b.set_viewport_states(&rctx->b, 0, 1, &viewport);
- /* Upload vertices. The hw rectangle has only 3 vertices,
- * The 4th one is derived from the first 3.
- * The vertex specification should match u_blitter's vertex element state. */
- u_upload_alloc(rctx->b.stream_uploader, 0, sizeof(float) * 12,
- rctx->screen->info.tcc_cache_line_size,
- &offset, &buf, (void**)&vb);
- if (!buf)
- return;
+ if (type != UTIL_BLITTER_ATTRIB_NONE) {
+ struct pipe_vertex_buffer vbuffer = {};
+ float *vb;
- switch (type) {
- case UTIL_BLITTER_ATTRIB_COLOR:
- memcpy(vb, attrib->color, sizeof(float)*4);
- memcpy(vb+4, attrib->color, sizeof(float)*4);
- memcpy(vb+8, attrib->color, sizeof(float)*4);
- break;
- case UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW:
- vb[2] = vb[6] = vb[10] = attrib->texcoord.z;
- vb[3] = vb[7] = vb[11] = attrib->texcoord.w;
- /* fall through */
- case UTIL_BLITTER_ATTRIB_TEXCOORD_XY:
- vb[0] = attrib->texcoord.x1;
- vb[1] = attrib->texcoord.y1;
- vb[4] = attrib->texcoord.x2;
- vb[5] = attrib->texcoord.y1;
- vb[8] = attrib->texcoord.x2;
- vb[9] = attrib->texcoord.y2;
- break;
- default:; /* Nothing to do. */
- }
+ vbuffer.stride = 4 * sizeof(float); /* vertex size */
+
+ /* Upload vertices. The hw rectangle has only 3 vertices,
+ * The 4th one is derived from the first 3.
+ * The vertex specification should match u_blitter's vertex
+ * element state.
+ */
+ u_upload_alloc(rctx->b.stream_uploader, 0, vbuffer.stride * 3,
+ rctx->screen->info.tcc_cache_line_size,
+ &vbuffer.buffer_offset,
+ &vbuffer.buffer.resource, (void**)&vb);
+ if (!vbuffer.buffer.resource)
+ return;
- /* draw */
- struct pipe_vertex_buffer vbuffer = {};
- vbuffer.buffer.resource = buf;
- vbuffer.stride = 4 * sizeof(float); /* vertex size */
- vbuffer.buffer_offset = offset;
+ switch (type) {
+ case UTIL_BLITTER_ATTRIB_COLOR:
+ memcpy(vb, attrib->color, sizeof(float)*4);
+ memcpy(vb+4, attrib->color, sizeof(float)*4);
+ memcpy(vb+8, attrib->color, sizeof(float)*4);
+ break;
+ case UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW:
+ vb[2] = vb[6] = vb[10] = attrib->texcoord.z;
+ vb[3] = vb[7] = vb[11] = attrib->texcoord.w;
+ /* fall through */
+ case UTIL_BLITTER_ATTRIB_TEXCOORD_XY:
+ vb[0] = attrib->texcoord.x1;
+ vb[1] = attrib->texcoord.y1;
+ vb[4] = attrib->texcoord.x2;
+ vb[5] = attrib->texcoord.y1;
+ vb[8] = attrib->texcoord.x2;
+ vb[9] = attrib->texcoord.y2;
+ break;
+ default:
+ assert(0);
+ }
+
+ rctx->b.set_vertex_buffers(&rctx->b, blitter->vb_slot, 1, &vbuffer);
+ pipe_resource_reference(&vbuffer.buffer.resource, NULL);
+ }
- rctx->b.set_vertex_buffers(&rctx->b, blitter->vb_slot, 1, &vbuffer);
util_draw_arrays_instanced(&rctx->b, R600_PRIM_RECTANGLE_LIST, 0, 3,
0, num_instances);
- pipe_resource_reference(&buf, NULL);
}
static void r600_dma_emit_wait_idle(struct r600_common_context *rctx)
{
struct radeon_winsys_cs *cs = rctx->dma.cs;
/* NOP waits for idle on Evergreen and later. */
if (rctx->chip_class >= CIK)
radeon_emit(cs, 0x00000000); /* NOP */
else if (rctx->chip_class >= EVERGREEN)
--
2.7.4
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