From: Chunming Zhou David1.Zhou@amd.com
This implements the pciconfig register accessors.
Reviewed-by: Jammy Zhou Jammy.Zhou@amd.com Signed-off-by: Chunming Zhou David1.Zhou@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 40 +++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c index 7ba92f7..6ac3df8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c @@ -21,6 +21,7 @@ * * */ +#include <linux/pci.h> #include "amdgpu.h" #include "cgs_linux.h"
@@ -163,42 +164,57 @@ static void amdgpu_cgs_write_ind_register(void *cgs_device,
static uint8_t amdgpu_cgs_read_pci_config_byte(void *cgs_device, unsigned addr) { - /* TODO */ - return 0; + CGS_FUNC_ADEV; + uint8_t val; + int ret = pci_read_config_byte(adev->pdev, addr, &val); + if (WARN(ret, "pci_read_config_byte error")) + return 0; + return val; }
static uint16_t amdgpu_cgs_read_pci_config_word(void *cgs_device, unsigned addr) { - /* TODO */ - return 0; + CGS_FUNC_ADEV; + uint16_t val; + int ret = pci_read_config_word(adev->pdev, addr, &val); + if (WARN(ret, "pci_read_config_word error")) + return 0; + return val; }
static uint32_t amdgpu_cgs_read_pci_config_dword(void *cgs_device, unsigned addr) { - /* TODO */ - return 0; + CGS_FUNC_ADEV; + uint32_t val; + int ret = pci_read_config_dword(adev->pdev, addr, &val); + if (WARN(ret, "pci_read_config_dword error")) + return 0; + return val; }
static void amdgpu_cgs_write_pci_config_byte(void *cgs_device, unsigned addr, uint8_t value) { - /* TODO */ - return; + CGS_FUNC_ADEV; + int ret = pci_write_config_byte(adev->pdev, addr, value); + WARN(ret, "pci_write_config_byte error"); }
static void amdgpu_cgs_write_pci_config_word(void *cgs_device, unsigned addr, uint16_t value) { - /* TODO */ - return; + CGS_FUNC_ADEV; + int ret = pci_write_config_word(adev->pdev, addr, value); + WARN(ret, "pci_write_config_word error"); }
static void amdgpu_cgs_write_pci_config_dword(void *cgs_device, unsigned addr, uint32_t value) { - /* TODO */ - return; + CGS_FUNC_ADEV; + int ret = pci_write_config_dword(adev->pdev, addr, value); + WARN(ret, "pci_write_config_dword error"); }
static const void *amdgpu_cgs_atom_get_data_table(void *cgs_device,