mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-27 19:29:37 +00:00
Code Issues Releases Wiki Activity

drm/amdgpu: add check for atombios GPU virtualization table

Browse source 
This table is found on boards that support SR-IOV.  This will
be used to determine if the board supports SR-IOV and allow
the driver to take specific action in certain cases.

Reviewed-by: Monk Liu <monk.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-02-01 11:00:49 -05:00
parent 383b6f608b
commit e74adf2039
2 changed files with 15 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
View file

@ -1514,6 +1514,19 @@ int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
return -EINVAL;
}
bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
{
int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
u8 frev, crev;
u16 data_offset, size;
if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
&frev, &crev, &data_offset))
return true;
return false;
}
void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
{
uint32_t bios_6_scratch;

2
drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h
View file

@ -196,6 +196,8 @@ int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
u8 module_index,
struct atom_mc_reg_table *reg_table);
bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev);
void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock);
void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev);
void amdgpu_atombios_scratch_regs_save(struct amdgpu_device *adev);