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Diffstat (limited to 'src/amd/vulkan/si_cmd_buffer.c')
-rw-r--r--src/amd/vulkan/si_cmd_buffer.c29
1 files changed, 21 insertions, 8 deletions
diff --git a/src/amd/vulkan/si_cmd_buffer.c b/src/amd/vulkan/si_cmd_buffer.c
index 379d8d5fcd4..c846d0ac002 100644
--- a/src/amd/vulkan/si_cmd_buffer.c
+++ b/src/amd/vulkan/si_cmd_buffer.c
@@ -368,23 +368,36 @@ si_emit_graphics(struct radv_physical_device *physical_device,
radeon_set_context_reg(cs, R_028C50_PA_SC_NGG_MODE_CNTL,
S_028C50_MAX_DEALLOCS_IN_WAVE(512));
radeon_set_context_reg(cs, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL, 14);
+
+ /* Enable CMASK/FMASK/HTILE/DCC caching in L2 for small chips. */
+ unsigned meta_write_policy, meta_read_policy;
+
+ /* TODO: investigate whether LRU improves performance on other chips too */
+ if (physical_device->rad_info.num_render_backends <= 4) {
+ meta_write_policy = V_02807C_CACHE_LRU_WR; /* cache writes */
+ meta_read_policy = V_02807C_CACHE_LRU_RD; /* cache reads */
+ } else {
+ meta_write_policy = V_02807C_CACHE_STREAM_WR; /* write combine */
+ meta_read_policy = V_02807C_CACHE_NOA_RD; /* don't cache reads */
+ }
+
radeon_set_context_reg(cs, R_02807C_DB_RMI_L2_CACHE_CONTROL,
S_02807C_Z_WR_POLICY(V_02807C_CACHE_STREAM_WR) |
S_02807C_S_WR_POLICY(V_02807C_CACHE_STREAM_WR) |
- S_02807C_HTILE_WR_POLICY(V_02807C_CACHE_STREAM_WR) |
+ S_02807C_HTILE_WR_POLICY(meta_write_policy) |
S_02807C_ZPCPSD_WR_POLICY(V_02807C_CACHE_STREAM_WR) |
S_02807C_Z_RD_POLICY(V_02807C_CACHE_NOA_RD) |
S_02807C_S_RD_POLICY(V_02807C_CACHE_NOA_RD) |
- S_02807C_HTILE_RD_POLICY(V_02807C_CACHE_NOA_RD));
+ S_02807C_HTILE_RD_POLICY(meta_read_policy));
radeon_set_context_reg(cs, R_028410_CB_RMI_GL2_CACHE_CONTROL,
- S_028410_CMASK_WR_POLICY(V_028410_CACHE_STREAM_WR) |
- S_028410_FMASK_WR_POLICY(V_028410_CACHE_STREAM_WR) |
- S_028410_DCC_WR_POLICY(V_028410_CACHE_STREAM_WR) |
+ S_028410_CMASK_WR_POLICY(meta_write_policy) |
+ S_028410_FMASK_WR_POLICY(meta_write_policy) |
+ S_028410_DCC_WR_POLICY(meta_write_policy) |
S_028410_COLOR_WR_POLICY(V_028410_CACHE_STREAM_WR) |
- S_028410_CMASK_RD_POLICY(V_028410_CACHE_NOA_RD) |
- S_028410_FMASK_RD_POLICY(V_028410_CACHE_NOA_RD) |
- S_028410_DCC_RD_POLICY(V_028410_CACHE_NOA_RD) |
+ S_028410_CMASK_RD_POLICY(meta_read_policy) |
+ S_028410_FMASK_RD_POLICY(meta_read_policy) |
+ S_028410_DCC_RD_POLICY(meta_read_policy) |
S_028410_COLOR_RD_POLICY(V_028410_CACHE_NOA_RD));
radeon_set_context_reg(cs, R_028428_CB_COVERAGE_OUT_CONTROL, 0);