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pvr, pco: switch to clc nop shader

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Signed-off-by: Simon Perretta <simon.perretta@imgtec.com>
Acked-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37439>
This commit is contained in:
Simon Perretta 2025-07-30 16:28:50 +01:00
parent 98814d343d
commit fd130c5d8b
3 changed files with 6 additions and 34 deletions
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16
src/imagination/vulkan/pvr_device.c
View file

@ -42,6 +42,7 @@
#include "git_sha1.h"
#include "hwdef/rogue_hw_utils.h"
#include "pco/pco.h"
#include "pco/pco_data.h"
#include "pco_uscgen_programs.h"
#include "pvr_bo.h"
#include "pvr_border.h"
@ -1821,29 +1822,24 @@ static VkResult pvr_device_init_nop_program(struct pvr_device *device)
const uint32_t cache_line_size =
rogue_get_slc_cache_line_size(&device->pdevice->dev_info);
struct pvr_pds_kickusc_program program = { 0 };
pco_shader *nop;
const pco_precomp_data *precomp_data;
uint32_t staging_buffer_size;
uint32_t *staging_buffer;
unsigned usc_temp_count;
VkResult result;
nop = pvr_usc_nop(device->pdevice->pco_ctx, MESA_SHADER_FRAGMENT);
usc_temp_count = pco_shader_data(nop)->common.temps;
assert(!usc_temp_count);
precomp_data = (pco_precomp_data *)pco_usclib_common[FS_NOP_COMMON];
result = pvr_gpu_upload_usc(device,
pco_shader_binary_data(nop),
pco_shader_binary_size(nop),
precomp_data->binary,
precomp_data->size_dwords * sizeof(uint32_t),
cache_line_size,
&device->nop_program.usc);
ralloc_free(nop);
if (result != VK_SUCCESS)
return result;
/* Setup a PDS program that kicks the static USC program. */
pvr_pds_setup_doutu(&program.usc_task_control,
device->nop_program.usc->dev_addr.addr,
usc_temp_count,
precomp_data->temps,
ROGUE_PDSINST_DOUTU_SAMPLE_RATE_INSTANCE,
false);

21
src/imagination/vulkan/pvr_usc.c
View file

@ -48,27 +48,6 @@ static pco_shader *build_shader(pco_ctx *ctx, nir_shader *nir, pco_data *data)
return shader;
}
/**
* Generate a nop (empty) shader.
*
* \param ctx PCO context.
* \param stage Shader stage.
+ * \return The nop shader.
*/
pco_shader *pvr_usc_nop(pco_ctx *ctx, mesa_shader_stage stage)
{
nir_builder b =
nir_builder_init_simple_shader(stage,
pco_nir_options(),
"nop (%s)",
_mesa_shader_stage_to_string(stage));
/* Just return. */
nir_jump(&b, nir_jump_return);
return build_shader(ctx, b.shader, &(pco_data){ 0 });
}
/**
* Generate an end-of-tile shader.
*

3
src/imagination/vulkan/pvr_usc.h
View file

@ -18,9 +18,6 @@
#include "pvr_private.h"
#include "usc/pvr_uscgen.h"
/* NOP shader generation. */
pco_shader *pvr_usc_nop(pco_ctx *ctx, mesa_shader_stage stage);
/* EOT shader generation. */
struct pvr_eot_props {
unsigned emit_count;