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radeonsi/gfx9: set optimal OVERWRITE_COMBINER_WATERMARK

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This commit is contained in:
Marek Olšák 2018-10-26 22:07:29 -04:00
parent 8ad12c8bec
commit 99835fff08
2 changed files with 14 additions and 1 deletions
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1
src/gallium/drivers/radeonsi/si_pipe.h
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@ -617,6 +617,7 @@ struct si_framebuffer {
ubyte color_is_int8;
ubyte color_is_int10;
ubyte dirty_cbufs;
ubyte dcc_overwrite_combiner_watermark;
bool dirty_zsbuf;
bool any_dst_linear;
bool CB_has_shader_readable_metadata;

14
src/gallium/drivers/radeonsi/si_state.c
View file

@ -113,12 +113,13 @@ static void si_emit_cb_render_state(struct si_context *sctx)
blend &&
blend->blend_enable_4bit & cb_target_mask &&
sctx->framebuffer.nr_samples >= 2;
unsigned watermark = sctx->framebuffer.dcc_overwrite_combiner_watermark;
radeon_opt_set_context_reg(
sctx, R_028424_CB_DCC_CONTROL,
SI_TRACKED_CB_DCC_CONTROL,
S_028424_OVERWRITE_COMBINER_MRT_SHARING_DISABLE(1) |
S_028424_OVERWRITE_COMBINER_WATERMARK(4) |
S_028424_OVERWRITE_COMBINER_WATERMARK(watermark) |
S_028424_OVERWRITE_COMBINER_DISABLE(oc_disable));
}
@ -2855,6 +2856,7 @@ static void si_set_framebuffer_state(struct pipe_context *ctx,
sctx->framebuffer.any_dst_linear = false;
sctx->framebuffer.CB_has_shader_readable_metadata = false;
sctx->framebuffer.DB_has_shader_readable_metadata = false;
unsigned num_bpp64_colorbufs = 0;
for (i = 0; i < state->nr_cbufs; i++) {
if (!state->cbufs[i])
@ -2901,6 +2903,8 @@ static void si_set_framebuffer_state(struct pipe_context *ctx,
if (tex->surface.is_linear)
sctx->framebuffer.any_dst_linear = true;
if (tex->surface.bpe >= 8)
num_bpp64_colorbufs++;
if (vi_dcc_enabled(tex, surf->base.u.tex.level))
sctx->framebuffer.CB_has_shader_readable_metadata = true;
@ -2916,6 +2920,14 @@ static void si_set_framebuffer_state(struct pipe_context *ctx,
}
}
/* For optimal DCC performance. */
if (sctx->chip_class == VI)
sctx->framebuffer.dcc_overwrite_combiner_watermark = 4;
else if (num_bpp64_colorbufs >= 5)
sctx->framebuffer.dcc_overwrite_combiner_watermark = 8;
else
sctx->framebuffer.dcc_overwrite_combiner_watermark = 6;
struct si_texture *zstex = NULL;
if (state->zsbuf) {