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radv/gfx10: implement a GE bug workaround

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset
2019-07-31 09:39:23 +02:00
parent 9a3fc7b6fa
commit c66021069e
1 changed files with 23 additions and 4 deletions
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27
src/amd/vulkan/radv_pipeline.c
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@@ -3592,6 +3592,7 @@ radv_pipeline_generate_hw_ngg(struct radeon_cmdbuf *ctx_cs,
bool es_enable_prim_id = outinfo->export_prim_id ||
(es && es->info.info.uses_prim_id);
bool break_wave_at_eoi = false;
unsigned ge_cntl;
unsigned nparams;
if (es_type == MESA_SHADER_TESS_EVAL) {
@@ -3674,10 +3675,28 @@ radv_pipeline_generate_hw_ngg(struct radeon_cmdbuf *ctx_cs,
S_028838_INDEX_BUF_EDGE_FLAG_ENA(!radv_pipeline_has_tess(pipeline) &&
!radv_pipeline_has_gs(pipeline)));
radeon_set_uconfig_reg(ctx_cs, R_03096C_GE_CNTL,
S_03096C_PRIM_GRP_SIZE(ngg_state->max_gsprims) |
S_03096C_VERT_GRP_SIZE(ngg_state->hw_max_esverts) |
S_03096C_BREAK_WAVE_AT_EOI(break_wave_at_eoi));
ge_cntl = S_03096C_PRIM_GRP_SIZE(ngg_state->max_gsprims) |
S_03096C_VERT_GRP_SIZE(ngg_state->hw_max_esverts) |
S_03096C_BREAK_WAVE_AT_EOI(break_wave_at_eoi);
/* Bug workaround for a possible hang with non-tessellation cases.
* Tessellation always sets GE_CNTL.VERT_GRP_SIZE = 0
*
* Requirement: GE_CNTL.VERT_GRP_SIZE = VGT_GS_ONCHIP_CNTL.ES_VERTS_PER_SUBGRP - 5
*/
if ((pipeline->device->physical_device->rad_info.family == CHIP_NAVI10 ||
pipeline->device->physical_device->rad_info.family == CHIP_NAVI12 ||
pipeline->device->physical_device->rad_info.family == CHIP_NAVI14) &&
!radv_pipeline_has_tess(pipeline) &&
ngg_state->hw_max_esverts != 256) {
ge_cntl &= C_03096C_VERT_GRP_SIZE;
if (ngg_state->hw_max_esverts > 5) {
ge_cntl |= S_03096C_VERT_GRP_SIZE(ngg_state->hw_max_esverts - 5);
}
}
radeon_set_uconfig_reg(ctx_cs, R_03096C_GE_CNTL, ge_cntl);
}
static void