diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2011-05-25 18:45:37 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-05-26 09:21:54 +1000 |
| commit | 67b3f823ec78d08aea8835bce2655674237abc1d (patch) | |
| tree | 3cac280a6b8c154d73d9926cee899fc7b1985897 /drivers/gpu | |
| parent | 457558eda1545c22163574f6dbb883394705e9dd (diff) | |
| download | linux-rpi-67b3f823ec78d08aea8835bce2655674237abc1d.tar.gz linux-rpi-67b3f823ec78d08aea8835bce2655674237abc1d.tar.bz2 linux-rpi-67b3f823ec78d08aea8835bce2655674237abc1d.zip | |
drm/radeon/kms: fix thermal sensor reading on juniper
Uses a different method than other evergreen asics.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 46 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreend.h | 8 |
2 files changed, 39 insertions, 15 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 34cd5a878088..8f446aadccd6 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -88,21 +88,39 @@ u32 evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) /* get temperature in millidegrees */ int evergreen_get_temp(struct radeon_device *rdev) { - u32 temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >> - ASIC_T_SHIFT; - u32 actual_temp = 0; - - if (temp & 0x400) - actual_temp = -256; - else if (temp & 0x200) - actual_temp = 255; - else if (temp & 0x100) { - actual_temp = temp & 0x1ff; - actual_temp |= ~0x1ff; - } else - actual_temp = temp & 0xff; + u32 temp, toffset, actual_temp = 0; + + if (rdev->family == CHIP_JUNIPER) { + toffset = (RREG32(CG_THERMAL_CTRL) & TOFFSET_MASK) >> + TOFFSET_SHIFT; + temp = (RREG32(CG_TS0_STATUS) & TS0_ADC_DOUT_MASK) >> + TS0_ADC_DOUT_SHIFT; + + if (toffset & 0x100) + actual_temp = temp / 2 - (0x200 - toffset); + else + actual_temp = temp / 2 + toffset; + + actual_temp = actual_temp * 1000; + + } else { + temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >> + ASIC_T_SHIFT; + + if (temp & 0x400) + actual_temp = -256; + else if (temp & 0x200) + actual_temp = 255; + else if (temp & 0x100) { + actual_temp = temp & 0x1ff; + actual_temp |= ~0x1ff; + } else + actual_temp = temp & 0xff; + + actual_temp = (actual_temp * 1000) / 2; + } - return (actual_temp * 1000) / 2; + return actual_temp; } int sumo_get_temp(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 75b57e394f2b..103250ff3cbe 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -168,10 +168,16 @@ #define SE_DB_BUSY (1 << 30) #define SE_CB_BUSY (1 << 31) /* evergreen */ +#define CG_THERMAL_CTRL 0x72c +#define TOFFSET_MASK 0x00003FE0 +#define TOFFSET_SHIFT 5 #define CG_MULT_THERMAL_STATUS 0x740 #define ASIC_T(x) ((x) << 16) -#define ASIC_T_MASK 0x7FF0000 +#define ASIC_T_MASK 0x07FF0000 #define ASIC_T_SHIFT 16 +#define CG_TS0_STATUS 0x760 +#define TS0_ADC_DOUT_MASK 0x000003FF +#define TS0_ADC_DOUT_SHIFT 0 /* APU */ #define CG_THERMAL_STATUS 0x678 |