From 80427c381f62c991a617d95f949a1cbbf369e395 Mon Sep 17 00:00:00 2001 From: Thomas Fitzsimmons Date: Sat, 17 Jan 2026 16:27:02 -0500 Subject: [PATCH] drm/amdgpu: fix non-x86 GPU VCRAT parsing On a non-x86 platform (ppc64le), the insertion of an IO link entry in the GPU VCRAT table results in a parsing failure: amdgpu [...]: amdgpu: Error parsing VCRAT kfd kfd: amdgpu: Error adding device to topology kfd kfd: amdgpu: Error initializing KFD node kfd kfd: amdgpu: device [...]:[...] NOT added due to errors This patch makes kfd_create_vcrat_image_gpu skip inserting an IO link entry on non-x86 platforms, matching kfd_create_vcrat_image_cpu's non-x86 behaviour. --- drivers/gpu/drm/amd/amdkfd/kfd_crat.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c index 4a7180b46b71..2c1095d63b38 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c @@ -2334,6 +2334,7 @@ static int kfd_create_vcrat_image_gpu(void *pcrat_image, * Only direct links are added here which is Link from GPU to * its NUMA node. Indirect links are added by userspace. */ +#ifdef CONFIG_X86_64 sub_type_hdr = (typeof(sub_type_hdr))((char *)sub_type_hdr + sub_type_hdr->length); ret = kfd_fill_gpu_direct_io_link_to_cpu(&avail_size, kdev, @@ -2344,6 +2345,9 @@ static int kfd_create_vcrat_image_gpu(void *pcrat_image, crat_table->length += sub_type_hdr->length; crat_table->total_entries++; +#else + pr_info("IO link not available for non x86 platforms\n"); +#endif /* Fill in Subtype: IO_LINKS -- 2.47.3