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drm/amd/amdgpu: add power gating init for Baffin 

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Huang 2016-02-16 17:33:14 -05:00 committed by Alex Deucher
parent 2b6cd97797
commit f4bfffddd7
1 changed files with 39 additions and 0 deletions
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39
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -1092,9 +1092,14 @@ static void gfx_v8_0_get_csb_buffer(struct amdgpu_device *adev,
PACKET3_SET_CONTEXT_REG_START);
switch (adev->asic_type) {
case CHIP_TONGA:
case CHIP_ELLESMERE:
buffer[count++] = cpu_to_le32(0x16000012);
buffer[count++] = cpu_to_le32(0x0000002A);
break;
case CHIP_BAFFIN:
buffer[count++] = cpu_to_le32(0x16000012);
buffer[count++] = cpu_to_le32(0x00000000);
break;
case CHIP_FIJI:
buffer[count++] = cpu_to_le32(0x3a00161a);
buffer[count++] = cpu_to_le32(0x0000002e);
@ -3653,6 +3658,37 @@ static void gfx_v8_0_enable_save_restore_machine(struct amdgpu_device *adev)
WREG32(mmRLC_SRM_CNTL, data);
}
static void baffin_init_power_gating(struct amdgpu_device *adev)
{
uint32_t data;
if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG |
AMD_PG_SUPPORT_GFX_SMG |
AMD_PG_SUPPORT_GFX_DMG)) {
data = RREG32(mmCP_RB_WPTR_POLL_CNTL);
data &= ~CP_RB_WPTR_POLL_CNTL__IDLE_POLL_COUNT_MASK;
data |= (0x60 << CP_RB_WPTR_POLL_CNTL__IDLE_POLL_COUNT__SHIFT);
WREG32(mmCP_RB_WPTR_POLL_CNTL, data);
data = 0;
data |= (0x10 << RLC_PG_DELAY__POWER_UP_DELAY__SHIFT);
data |= (0x10 << RLC_PG_DELAY__POWER_DOWN_DELAY__SHIFT);
data |= (0x10 << RLC_PG_DELAY__CMD_PROPAGATE_DELAY__SHIFT);
data |= (0x10 << RLC_PG_DELAY__MEM_SLEEP_DELAY__SHIFT);
WREG32(mmRLC_PG_DELAY, data);
data = RREG32(mmRLC_PG_DELAY_2);
data &= ~RLC_PG_DELAY_2__SERDES_CMD_DELAY_MASK;
data |= (0x3 << RLC_PG_DELAY_2__SERDES_CMD_DELAY__SHIFT);
WREG32(mmRLC_PG_DELAY_2, data);
data = RREG32(mmRLC_AUTO_PG_CTRL);
data &= ~RLC_AUTO_PG_CTRL__GRBM_REG_SAVE_GFX_IDLE_THRESHOLD_MASK;
data |= (0x55f0 << RLC_AUTO_PG_CTRL__GRBM_REG_SAVE_GFX_IDLE_THRESHOLD__SHIFT);
WREG32(mmRLC_AUTO_PG_CTRL, data);
}
}
static void gfx_v8_0_init_pg(struct amdgpu_device *adev)
{
if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG |
@ -3664,6 +3700,9 @@ static void gfx_v8_0_init_pg(struct amdgpu_device *adev)
gfx_v8_0_init_csb(adev);
gfx_v8_0_init_save_restore_list(adev);
gfx_v8_0_enable_save_restore_machine(adev);
if (adev->asic_type == CHIP_BAFFIN)
baffin_init_power_gating(adev);
}
}