AlexIndustrial/mesa
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

anv: Support fetching descriptor addresses from push constants

Browse Source 
Bindless shaders don't have binding tables so they have to get at the
descriptor sets via a different mechanism.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8637>
This commit is contained in:
Jason Ekstrand
2021-01-21 14:13:47 -06:00
committed by Marge Bot
parent 937ffb1af0
commit 379b9bb7b0
3 changed files with 45 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/intel/vulkan/anv_nir_compute_push_layout.c
+23
View File
@@ -26,6 +26,8 @@
#include "compiler/brw_nir.h"
#include "util/mesa-sha1.h"
#define sizeof_field(type, field) sizeof(((type *)0)->field)
void
anv_nir_compute_push_layout(const struct anv_physical_device *pdevice,
bool robust_buffer_access,
@@ -65,6 +67,13 @@ anv_nir_compute_push_layout(const struct anv_physical_device *pdevice,
break;
}
case nir_intrinsic_load_desc_set_address_intel:
push_start = MIN2(push_start,
offsetof(struct anv_push_constants, desc_sets));
push_end = MAX2(push_end, push_start +
sizeof_field(struct anv_push_constants, desc_sets));
break;
default:
break;
}
@@ -130,6 +139,9 @@ anv_nir_compute_push_layout(const struct anv_physical_device *pdevice,
if (!function->impl)
continue;
nir_builder build, *b = &build;
nir_builder_init(b, function->impl);
nir_foreach_block(block, function->impl) {
nir_foreach_instr_safe(instr, block) {
if (instr->type != nir_instr_type_intrinsic)
@@ -144,6 +156,17 @@ anv_nir_compute_push_layout(const struct anv_physical_device *pdevice,
push_start);
break;
case nir_intrinsic_load_desc_set_address_intel: {
b->cursor = nir_before_instr(&intrin->instr);
nir_ssa_def *pc_load = nir_load_uniform(b, 1, 64,
nir_imul_imm(b, intrin->src[0].ssa, sizeof(uint64_t)),
.base = offsetof(struct anv_push_constants, desc_sets),
.range = sizeof_field(struct anv_push_constants, desc_sets),
.dest_type = nir_type_uint64);
nir_ssa_def_rewrite_uses(&intrin->dest.ssa, pc_load);
break;
}
default:
break;
}