diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c index 59485d0b3cfb..a081dda9fa2f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c @@ -398,6 +398,41 @@ static void amdgpu_cgs_write_pci_config_dword(void *cgs_device, unsigned addr, WARN(ret, "pci_write_config_dword error"); } + +static int amdgpu_cgs_get_pci_resource(void *cgs_device, + enum cgs_resource_type resource_type, + uint64_t size, + uint64_t offset, + uint64_t *resource_base) +{ + CGS_FUNC_ADEV; + + if (resource_base == NULL) + return -EINVAL; + + switch (resource_type) { + case CGS_RESOURCE_TYPE_MMIO: + if (adev->rmmio_size == 0) + return -ENOENT; + if ((offset + size) > adev->rmmio_size) + return -EINVAL; + *resource_base = adev->rmmio_base; + return 0; + case CGS_RESOURCE_TYPE_DOORBELL: + if (adev->doorbell.size == 0) + return -ENOENT; + if ((offset + size) > adev->doorbell.size) + return -EINVAL; + *resource_base = adev->doorbell.base; + return 0; + case CGS_RESOURCE_TYPE_FB: + case CGS_RESOURCE_TYPE_IO: + case CGS_RESOURCE_TYPE_ROM: + default: + return -EINVAL; + } +} + static const void *amdgpu_cgs_atom_get_data_table(void *cgs_device, unsigned table, uint16_t *size, uint8_t *frev, uint8_t *crev) @@ -1041,6 +1076,7 @@ static const struct cgs_ops amdgpu_cgs_ops = { amdgpu_cgs_write_pci_config_byte, amdgpu_cgs_write_pci_config_word, amdgpu_cgs_write_pci_config_dword, + amdgpu_cgs_get_pci_resource, amdgpu_cgs_atom_get_data_table, amdgpu_cgs_atom_get_cmd_table_revs, amdgpu_cgs_atom_exec_cmd_table, |