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drm/amdgpu: add get_clockgating callback for gfx v9 

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Huang Rui 2017-03-24 09:58:11 +08:00 committed by Alex Deucher
parent e322edc322
commit 12ad27faa8
2 changed files with 45 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
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@ -43,6 +43,8 @@ static const struct cg_flag_name clocks[] = {
{AMD_CG_SUPPORT_GFX_CGTS_LS, "Graphics Coarse Grain Tree Shader Light Sleep"},
{AMD_CG_SUPPORT_GFX_CP_LS, "Graphics Command Processor Light Sleep"},
{AMD_CG_SUPPORT_GFX_RLC_LS, "Graphics Run List Controller Light Sleep"},
{AMD_CG_SUPPORT_GFX_3D_CGCG, "Graphics 3D Coarse Grain Clock Gating"},
{AMD_CG_SUPPORT_GFX_3D_CGLS, "Graphics 3D Coarse Grain memory Light Sleep"},
{AMD_CG_SUPPORT_MC_LS, "Memory Controller Light Sleep"},
{AMD_CG_SUPPORT_MC_MGCG, "Memory Controller Medium Grain Clock Gating"},
{AMD_CG_SUPPORT_SDMA_LS, "System Direct Memory Access Light Sleep"},

43
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
View File

@ -2946,6 +2946,48 @@ static int gfx_v9_0_set_clockgating_state(void *handle,
return 0;
}
static void gfx_v9_0_get_clockgating_state(void *handle, u32 *flags)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int data;
if (amdgpu_sriov_vf(adev))
*flags = 0;
/* AMD_CG_SUPPORT_GFX_MGCG */
data = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_CGTT_MGCG_OVERRIDE));
if (!(data & RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK))
*flags |= AMD_CG_SUPPORT_GFX_MGCG;
/* AMD_CG_SUPPORT_GFX_CGCG */
data = RREG32(SOC15_REG_OFFSET(GC, 0, 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_RLC_LS */
data = RREG32(SOC15_REG_OFFSET(GC, 0, 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(SOC15_REG_OFFSET(GC, 0, 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;
/* AMD_CG_SUPPORT_GFX_3D_CGCG */
data = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_CGCG_CGLS_CTRL_3D));
if (data & RLC_CGCG_CGLS_CTRL_3D__CGCG_EN_MASK)
*flags |= AMD_CG_SUPPORT_GFX_3D_CGCG;
/* AMD_CG_SUPPORT_GFX_3D_CGLS */
if (data & RLC_CGCG_CGLS_CTRL_3D__CGLS_EN_MASK)
*flags |= AMD_CG_SUPPORT_GFX_3D_CGLS;
}
static u64 gfx_v9_0_ring_get_rptr_gfx(struct amdgpu_ring *ring)
{
return ring->adev->wb.wb[ring->rptr_offs]; /* gfx9 is 32bit rptr*/
@ -3626,6 +3668,7 @@ const struct amd_ip_funcs gfx_v9_0_ip_funcs = {
.soft_reset = gfx_v9_0_soft_reset,
.set_clockgating_state = gfx_v9_0_set_clockgating_state,
.set_powergating_state = gfx_v9_0_set_powergating_state,
.get_clockgating_state = gfx_v9_0_get_clockgating_state,
};
static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_gfx = {