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drm/amdgpu: Implement mmio callbacks for CGS

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This implements the MMIO 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>
This commit is contained in:
Chunming Zhou 2015-05-22 11:29:30 -04:00 committed by Alex Deucher
parent d03846af92
commit aba684d87a
1 changed files with 38 additions and 7 deletions
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45
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
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@ -103,22 +103,38 @@ static int amdgpu_cgs_kunmap_gpu_mem(void *cgs_device, cgs_handle_t handle)
static uint32_t amdgpu_cgs_read_register(void *cgs_device, unsigned offset)
{
/* TODO */
return 0;
CGS_FUNC_ADEV;
return RREG32(offset);
}
static void amdgpu_cgs_write_register(void *cgs_device, unsigned offset,
uint32_t value)
{
/* TODO */
return;
CGS_FUNC_ADEV;
WREG32(offset, value);
}
static uint32_t amdgpu_cgs_read_ind_register(void *cgs_device,
enum cgs_ind_reg space,
unsigned index)
{
/* TODO */
CGS_FUNC_ADEV;
switch (space) {
case CGS_IND_REG__MMIO:
return RREG32_IDX(index);
case CGS_IND_REG__PCIE:
return RREG32_PCIE(index);
case CGS_IND_REG__SMC:
return RREG32_SMC(index);
case CGS_IND_REG__UVD_CTX:
return RREG32_UVD_CTX(index);
case CGS_IND_REG__DIDT:
return RREG32_DIDT(index);
case CGS_IND_REG__AUDIO_ENDPT:
DRM_ERROR("audio endpt register access not implemented.\n");
return 0;
}
WARN(1, "Invalid indirect register space");
return 0;
}
@ -126,8 +142,23 @@ static void amdgpu_cgs_write_ind_register(void *cgs_device,
enum cgs_ind_reg space,
unsigned index, uint32_t value)
{
/* TODO */
return;
CGS_FUNC_ADEV;
switch (space) {
case CGS_IND_REG__MMIO:
return WREG32_IDX(index, value);
case CGS_IND_REG__PCIE:
return WREG32_PCIE(index, value);
case CGS_IND_REG__SMC:
return WREG32_SMC(index, value);
case CGS_IND_REG__UVD_CTX:
return WREG32_UVD_CTX(index, value);
case CGS_IND_REG__DIDT:
return WREG32_DIDT(index, value);
case CGS_IND_REG__AUDIO_ENDPT:
DRM_ERROR("audio endpt register access not implemented.\n");
return;
}
WARN(1, "Invalid indirect register space");
}
static uint8_t amdgpu_cgs_read_pci_config_byte(void *cgs_device, unsigned addr)