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drm/amdgpu: add get clockgating_state method for gfx v8 

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 18:48:44 +08:00 committed by Alex Deucher
parent a8503b15ab
commit ebd843d6ee
1 changed files with 40 additions and 0 deletions
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40
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -5872,6 +5872,45 @@ static int gfx_v8_0_set_powergating_state(void *handle,
return 0;
}
static void gfx_v8_0_get_clockgating_state(void *handle, u32 *flags)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int data;
/* AMD_CG_SUPPORT_GFX_MGCG */
data = RREG32(mmRLC_CGTT_MGCG_OVERRIDE);
if (!(data & RLC_CGTT_MGCG_OVERRIDE__CPF_MASK))
*flags |= AMD_CG_SUPPORT_GFX_MGCG;
/* AMD_CG_SUPPORT_GFX_CGLG */
data = RREG32(mmRLC_CGCG_CGLS_CTRL);
if (data & RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK)
*flags |= AMD_CG_SUPPORT_GFX_CGCG;
/* AMD_CG_SUPPORT_GFX_CGLS */
if (data & RLC_CGCG_CGLS_CTRL__CGLS_EN_MASK)
*flags |= AMD_CG_SUPPORT_GFX_CGLS;
/* AMD_CG_SUPPORT_GFX_CGTS */
data = RREG32(mmCGTS_SM_CTRL_REG);
if (!(data & CGTS_SM_CTRL_REG__OVERRIDE_MASK))
*flags |= AMD_CG_SUPPORT_GFX_CGTS;
/* AMD_CG_SUPPORT_GFX_CGTS_LS */
if (!(data & CGTS_SM_CTRL_REG__LS_OVERRIDE_MASK))
*flags |= AMD_CG_SUPPORT_GFX_CGTS_LS;
/* AMD_CG_SUPPORT_GFX_RLC_LS */
data = RREG32(mmRLC_MEM_SLP_CNTL);
if (data & RLC_MEM_SLP_CNTL__RLC_MEM_LS_EN_MASK)
*flags |= AMD_CG_SUPPORT_GFX_RLC_LS | AMD_CG_SUPPORT_GFX_MGLS;
/* AMD_CG_SUPPORT_GFX_CP_LS */
data = RREG32(mmCP_MEM_SLP_CNTL);
if (data & CP_MEM_SLP_CNTL__CP_MEM_LS_EN_MASK)
*flags |= AMD_CG_SUPPORT_GFX_CP_LS | AMD_CG_SUPPORT_GFX_MGLS;
}
static void gfx_v8_0_send_serdes_cmd(struct amdgpu_device *adev,
uint32_t reg_addr, uint32_t cmd)
{
@ -6910,6 +6949,7 @@ static const struct amd_ip_funcs gfx_v8_0_ip_funcs = {
.post_soft_reset = gfx_v8_0_post_soft_reset,
.set_clockgating_state = gfx_v8_0_set_clockgating_state,
.set_powergating_state = gfx_v8_0_set_powergating_state,
.get_clockgating_state = gfx_v8_0_get_clockgating_state,
};
static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_gfx = {