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drm/amdgpu: add get clockgating_state method for sdma v3

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Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Huang Rui 2017-01-05 20:18:43 +08:00 committed by Alex Deucher
parent 8bcab092f8
commit 41c360f6a6
1 changed files with 17 additions and 0 deletions
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17
drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
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@ -1533,6 +1533,22 @@ static int sdma_v3_0_set_powergating_state(void *handle,
return 0;
}
static void sdma_v3_0_get_clockgating_state(void *handle, u32 *flags)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int data;
/* AMD_CG_SUPPORT_SDMA_MGCG */
data = RREG32(mmSDMA0_CLK_CTRL + sdma_offsets[0]);
if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK))
*flags |= AMD_CG_SUPPORT_SDMA_MGCG;
/* AMD_CG_SUPPORT_SDMA_LS */
data = RREG32(mmSDMA0_POWER_CNTL + sdma_offsets[0]);
if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
*flags |= AMD_CG_SUPPORT_SDMA_LS;
}
static const struct amd_ip_funcs sdma_v3_0_ip_funcs = {
.name = "sdma_v3_0",
.early_init = sdma_v3_0_early_init,
@ -1551,6 +1567,7 @@ static const struct amd_ip_funcs sdma_v3_0_ip_funcs = {
.soft_reset = sdma_v3_0_soft_reset,
.set_clockgating_state = sdma_v3_0_set_clockgating_state,
.set_powergating_state = sdma_v3_0_set_powergating_state,
.get_clockgating_state = sdma_v3_0_get_clockgating_state,
};
static const struct amdgpu_ring_funcs sdma_v3_0_ring_funcs = {