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intel/fs: enable bindless sampler state offsets

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Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21645>
This commit is contained in:
Lionel Landwerlin
2023-02-22 15:44:41 +02:00
committed by Marge Bot
parent 6d6877bf99
commit 05089f305f
2 changed files with 14 additions and 1 deletions
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8
src/intel/compiler/brw_compiler.h
View File

@@ -121,6 +121,14 @@ struct brw_compiler {
*/ */
bool extended_bindless_surface_offset; bool extended_bindless_surface_offset;
/**
* Gfx11+ has a bit in the dword 3 of the sampler message header that
* indicates whether the sampler handle is relative to the dynamic state
* base address (0) or the bindless sampler base address (1). The driver
* can select this.
*/
bool use_bindless_sampler_offset;
struct nir_shader *clc_shader; struct nir_shader *clc_shader;
}; };

7
src/intel/compiler/brw_lower_logical_sends.cpp
View File

@@ -882,7 +882,12 @@ lower_sampler_logical_send_gfx7(const fs_builder &bld, fs_inst *inst, opcode op,
* address space but means we can do something more efficient in the * address space but means we can do something more efficient in the
* shader. * shader.
*/ */
ubld1.MOV(component(header, 3), sampler_handle); if (compiler->use_bindless_sampler_offset) {
assert(devinfo->ver >= 11);
ubld1.OR(component(header, 3), sampler_handle, brw_imm_ud(1));
} else {
ubld1.MOV(component(header, 3), sampler_handle);
}
} else if (is_high_sampler(devinfo, sampler)) { } else if (is_high_sampler(devinfo, sampler)) {
fs_reg sampler_state_ptr = fs_reg sampler_state_ptr =
retype(brw_vec1_grf(0, 3), BRW_REGISTER_TYPE_UD); retype(brw_vec1_grf(0, 3), BRW_REGISTER_TYPE_UD);