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drm/amdgpu/uvd6: add bypass support for fiji (v3) 

Handle uvd clock bypass settings as part of clockgating
setup.

v2: fix gate logic
v3: fix header include

Reviewed-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-04-29 11:44:32 -04:00
parent bdf1ecea3c
commit a0cdef9e82
1 changed files with 19 additions and 0 deletions
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19
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
View File

@ -31,6 +31,8 @@
#include "uvd/uvd_6_0_sh_mask.h"
#include "oss/oss_2_0_d.h"
#include "oss/oss_2_0_sh_mask.h"
#include "smu/smu_7_1_3_d.h"
#include "smu/smu_7_1_3_sh_mask.h"
#include "vi.h"
static void uvd_v6_0_set_ring_funcs(struct amdgpu_device *adev);
@ -823,6 +825,20 @@ static void uvd_v6_0_set_hw_clock_gating(struct amdgpu_device *adev)
}
#endif
static void uvd_v6_set_bypass_mode(struct amdgpu_device *adev, bool enable)
{
u32 tmp = RREG32_SMC(ixGCK_DFS_BYPASS_CNTL);
if (enable)
tmp |= (GCK_DFS_BYPASS_CNTL__BYPASSDCLK_MASK |
GCK_DFS_BYPASS_CNTL__BYPASSVCLK_MASK);
else
tmp &= ~(GCK_DFS_BYPASS_CNTL__BYPASSDCLK_MASK |
GCK_DFS_BYPASS_CNTL__BYPASSVCLK_MASK);
WREG32_SMC(ixGCK_DFS_BYPASS_CNTL, tmp);
}
static int uvd_v6_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
@ -830,6 +846,9 @@ static int uvd_v6_0_set_clockgating_state(void *handle,
bool enable = (state == AMD_CG_STATE_GATE) ? true : false;
static int curstate = -1;
if (adev->asic_type == CHIP_FIJI)
uvd_v6_set_bypass_mode(adev, enable);
if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG))
return 0;