Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-16 00:52:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/powerplay: add parts of system clock gating support for Fiji. (v2)

Browse Source 
Removed fiji_mgcg_cgcg_init that is affected and redundant for new implementation.

v2: re-add mgcg_cgcg init

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
This commit is contained in:
Eric Huang 2015-11-12 16:59:47 -05:00 committed by Alex Deucher
parent 3c997d2412
commit 6cec2655fa
1 changed files with 86 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

86
drivers/gpu/drm/amd/amdgpu/vi.c
View File

@ -1543,9 +1543,95 @@ static int vi_common_soft_reset(void *handle)
return 0;
}
static void fiji_update_bif_medium_grain_light_sleep(struct amdgpu_device *adev,
bool enable)
{
uint32_t temp, data;
temp = data = RREG32_PCIE(ixPCIE_CNTL2);
if (enable)
data |= PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
PCIE_CNTL2__MST_MEM_LS_EN_MASK |
PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK;
else
data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
PCIE_CNTL2__MST_MEM_LS_EN_MASK |
PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
if (temp != data)
WREG32_PCIE(ixPCIE_CNTL2, data);
}
static void fiji_update_hdp_medium_grain_clock_gating(struct amdgpu_device *adev,
bool enable)
{
uint32_t temp, data;
temp = data = RREG32(mmHDP_HOST_PATH_CNTL);
if (enable)
data &= ~HDP_HOST_PATH_CNTL__CLOCK_GATING_DIS_MASK;
else
data |= HDP_HOST_PATH_CNTL__CLOCK_GATING_DIS_MASK;
if (temp != data)
WREG32(mmHDP_HOST_PATH_CNTL, data);
}
static void fiji_update_hdp_light_sleep(struct amdgpu_device *adev,
bool enable)
{
uint32_t temp, data;
temp = data = RREG32(mmHDP_MEM_POWER_LS);
if (enable)
data |= HDP_MEM_POWER_LS__LS_ENABLE_MASK;
else
data &= ~HDP_MEM_POWER_LS__LS_ENABLE_MASK;
if (temp != data)
WREG32(mmHDP_MEM_POWER_LS, data);
}
static void fiji_update_rom_medium_grain_clock_gating(struct amdgpu_device *adev,
bool enable)
{
uint32_t temp, data;
temp = data = RREG32_SMC(ixCGTT_ROM_CLK_CTRL0);
if (enable)
data &= ~(CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK |
CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE1_MASK);
else
data |= CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK |
CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE1_MASK;
if (temp != data)
WREG32_SMC(ixCGTT_ROM_CLK_CTRL0, data);
}
static int vi_common_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
switch (adev->asic_type) {
case CHIP_FIJI:
fiji_update_bif_medium_grain_light_sleep(adev,
state == AMD_CG_STATE_GATE ? true : false);
fiji_update_hdp_medium_grain_clock_gating(adev,
state == AMD_CG_STATE_GATE ? true : false);
fiji_update_hdp_light_sleep(adev,
state == AMD_CG_STATE_GATE ? true : false);
fiji_update_rom_medium_grain_clock_gating(adev,
state == AMD_CG_STATE_GATE ? true : false);
break;
default:
break;
}
return 0;
}