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radv: update configuring GS_VGPR_COMP_CNT on GFX12

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29482>
This commit is contained in:
Samuel Pitoiset 2024-05-29 17:54:39 +02:00 • committed by Marge Bot
parent 671329a934
commit 407cbd8c87
1 changed files with 31 additions and 21 deletions
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52
src/amd/vulkan/radv_shader.c
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@ -2030,28 +2030,38 @@ radv_postprocess_binary_config(struct radv_device *device, struct radv_shader_bi
unreachable("Unexpected ES shader stage");
}
/* GS vertex offsets in NGG:
* - in passthrough mode, they are all packed into VGPR0
* - in the default mode: VGPR0: offsets 0, 1; VGPR1: offsets 2, 3
*
* The vertex offset 2 is always needed when NGG isn't in passthrough mode
* and uses triangle input primitives, including with NGG culling.
*/
bool need_gs_vtx_offset2 = !info->is_ngg_passthrough || info->gs.vertices_in >= 3;
/* TES only needs vertex offset 2 for triangles or quads. */
if (stage == MESA_SHADER_TESS_EVAL)
need_gs_vtx_offset2 &=
info->tes._primitive_mode == TESS_PRIMITIVE_TRIANGLES || info->tes._primitive_mode == TESS_PRIMITIVE_QUADS;
if (info->uses_invocation_id) {
gs_vgpr_comp_cnt = 3; /* VGPR3 contains InvocationID. */
} else if (info->uses_prim_id || (es_stage == MESA_SHADER_VERTEX && info->outinfo.export_prim_id)) {
gs_vgpr_comp_cnt = 2; /* VGPR2 contains PrimitiveID. */
} else if (need_gs_vtx_offset2) {
gs_vgpr_comp_cnt = 1; /* VGPR1 contains offsets 2, 3 */
if (pdev->info.gfx_level >= GFX12) {
if (info->gs.vertices_in >= 4) {
gs_vgpr_comp_cnt = 2; /* VGPR2 contains offsets 3-5 */
} else if (info->uses_prim_id || (es_stage == MESA_SHADER_VERTEX && info->outinfo.export_prim_id)) {
gs_vgpr_comp_cnt = 1; /* VGPR1 contains PrimitiveID. */
} else {
gs_vgpr_comp_cnt = 0; /* VGPR0 contains offsets 0-2, GS invocation ID. */
}
} else {
gs_vgpr_comp_cnt = 0; /* VGPR0 contains offsets 0, 1 (or passthrough prim) */
/* GS vertex offsets in NGG:
* - in passthrough mode, they are all packed into VGPR0
* - in the default mode: VGPR0: offsets 0, 1; VGPR1: offsets 2, 3
*
* The vertex offset 2 is always needed when NGG isn't in passthrough mode
* and uses triangle input primitives, including with NGG culling.
*/
bool need_gs_vtx_offset2 = !info->is_ngg_passthrough || info->gs.vertices_in >= 3;
/* TES only needs vertex offset 2 for triangles or quads. */
if (stage == MESA_SHADER_TESS_EVAL)
need_gs_vtx_offset2 &= info->tes._primitive_mode == TESS_PRIMITIVE_TRIANGLES ||
info->tes._primitive_mode == TESS_PRIMITIVE_QUADS;
if (info->uses_invocation_id) {
gs_vgpr_comp_cnt = 3; /* VGPR3 contains InvocationID. */
} else if (info->uses_prim_id || (es_stage == MESA_SHADER_VERTEX && info->outinfo.export_prim_id)) {
gs_vgpr_comp_cnt = 2; /* VGPR2 contains PrimitiveID. */
} else if (need_gs_vtx_offset2) {
gs_vgpr_comp_cnt = 1; /* VGPR1 contains offsets 2, 3 */
} else {
gs_vgpr_comp_cnt = 0; /* VGPR0 contains offsets 0, 1 (or passthrough prim) */
}
}
/* Disable the WGP mode on gfx10.3 because it can hang. (it