From 29b4c589b43d8dc0c0a5342cd2ac5da6ec1116b5 Mon Sep 17 00:00:00 2001 From: Jiawei Gu Date: Wed, 14 Apr 2021 16:44:36 +0800 Subject: drm/amdgpu: Add vbios info ioctl interface Add AMDGPU_INFO_VBIOS_INFO subquery id for detailed vbios info. Provides a way for the user application to get the VBIOS information without having to parse the binary. It is useful for the user to be able to display in a simple way the VBIOS version in their system if they happen to encounter an issue. V2: Use numeric serial. Parse and expose vbios version string. V3: Remove redundant data in drm_amdgpu_info_vbios struct. V4: 64 bit alignment in drm_amdgpu_info_vbios. v5: squash together all the reverts, etc. (Alex) Signed-off-by: Jiawei Gu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index b4c0b2e0964d..c354ffa62483 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -867,6 +867,21 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) min((size_t)size, (size_t)(bios_size - bios_offset))) ? -EFAULT : 0; } + case AMDGPU_INFO_VBIOS_INFO: { + struct drm_amdgpu_info_vbios vbios_info = {}; + struct atom_context *atom_context; + + atom_context = adev->mode_info.atom_context; + memcpy(vbios_info.name, atom_context->name, sizeof(atom_context->name)); + memcpy(vbios_info.vbios_pn, atom_context->vbios_pn, sizeof(atom_context->vbios_pn)); + vbios_info.version = atom_context->version; + memcpy(vbios_info.vbios_ver_str, atom_context->vbios_ver_str, + sizeof(atom_context->vbios_ver_str)); + memcpy(vbios_info.date, atom_context->date, sizeof(atom_context->date)); + + return copy_to_user(out, &vbios_info, + min((size_t)size, sizeof(vbios_info))) ? -EFAULT : 0; + } default: DRM_DEBUG_KMS("Invalid request %d\n", info->vbios_info.type); -- cgit v1.2.3