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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-06-21 15:50:47 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-08-30 16:30:15 -0400 |
| commit | 286d9cc67a87863ba510b22d3f32cbeed9864b85 (patch) | |
| tree | 16ed3f40ef062e800e68c54d232fc3fbbcb6a410 /drivers/gpu/drm/radeon/cik.c | |
| parent | 12262906b179f56c377871543e18327f4df7de21 (diff) | |
| download | linux-286d9cc67a87863ba510b22d3f32cbeed9864b85.tar.bz2 | |
drm/radeon: add get_temperature() callbacks for CIK (v2)
This added support for the on-chip thermal sensors on
CIK asics.
v2: fix register offset.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/cik.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/cik.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 727c296662f1..d0804f79efed 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -69,6 +69,43 @@ static void cik_program_aspm(struct radeon_device *rdev); static void cik_init_pg(struct radeon_device *rdev); static void cik_init_cg(struct radeon_device *rdev); +/* get temperature in millidegrees */ +int ci_get_temp(struct radeon_device *rdev) +{ + u32 temp; + int actual_temp = 0; + + temp = (RREG32_SMC(CG_MULT_THERMAL_STATUS) & CTF_TEMP_MASK) >> + CTF_TEMP_SHIFT; + + if (temp & 0x200) + actual_temp = 255; + else + actual_temp = temp & 0x1ff; + + actual_temp = actual_temp * 1000; + + return actual_temp; +} + +/* get temperature in millidegrees */ +int kv_get_temp(struct radeon_device *rdev) +{ + u32 temp; + int actual_temp = 0; + + temp = RREG32_SMC(0xC0300E0C); + + if (temp) + actual_temp = (temp / 8) - 49; + else + actual_temp = 0; + + actual_temp = actual_temp * 1000; + + return actual_temp; +} + /* * Indirect registers accessor */ |