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nak: disable imma 8x8x16 on Blackwell+

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It's not supported anymore

Fixes: 669c8a5145 ("nvk: Advertise VK_KHR_cooperative_matrix")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36163>
(cherry picked from commit da61149b2a)
This commit is contained in:
Dave Airlie 2025-07-15 16:43:58 -04:00 • committed by Eric Engestrom
parent 264ff0528c
commit 7f32e1c4bd
2 changed files with 17 additions and 15 deletions
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2
.pick_status.json
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@ -3274,7 +3274,7 @@
"description": "nak: disable imma 8x8x16 on Blackwell+",
"nominated": true,
"nomination_type": 2,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "669c8a51452e484c45e28a7014ea49590a4a7ee3",
"notes": null

30
src/nouveau/vulkan/nvk_physical_device.c
View file

@ -56,7 +56,7 @@
#include "clc797.h"
#include "clc6c0.h"
#include "clc997.h"
#include "clcdc0.h"
static uint32_t
nvk_get_vk_version(const struct nv_device_info *info)
{
@ -1796,20 +1796,22 @@ nvk_GetPhysicalDeviceCooperativeMatrixPropertiesKHR(VkPhysicalDevice physicalDev
if (result_type == VK_COMPONENT_TYPE_UINT32_KHR && sat)
continue;
vk_outarray_append_typed(VkCooperativeMatrixPropertiesKHR, &out, p)
{
*p = (struct VkCooperativeMatrixPropertiesKHR){
.sType = VK_STRUCTURE_TYPE_COOPERATIVE_MATRIX_PROPERTIES_KHR,
.MSize = 8,
.NSize = 8,
.KSize = 16,
.AType = input_type_ab,
.BType = input_type_ab,
.CType = result_type,
.ResultType = result_type,
.saturatingAccumulation = sat,
if (pdev->info.cls_compute < BLACKWELL_COMPUTE_A) {
vk_outarray_append_typed(VkCooperativeMatrixPropertiesKHR, &out, p)
{
*p = (struct VkCooperativeMatrixPropertiesKHR){
.sType = VK_STRUCTURE_TYPE_COOPERATIVE_MATRIX_PROPERTIES_KHR,
.MSize = 8,
.NSize = 8,
.KSize = 16,
.AType = input_type_ab,
.BType = input_type_ab,
.CType = result_type,
.ResultType = result_type,
.saturatingAccumulation = sat,
.scope = VK_SCOPE_SUBGROUP_KHR
};
};
}
}
if (pdev->info.cls_compute >= AMPERE_COMPUTE_A) {