diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-03-21 01:18:10 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-03-21 10:55:52 +0400 |
| commit | 1bd47d2e16573496efd2fd0ec36f57031d478f87 (patch) | |
| tree | fca64840969fdfb2ac2b85a4a3130f87f6de756d | |
| parent | 14607d08366c3787f70b8e5a0a29adfb28e5f128 (diff) | |
| download | linux-1bd47d2e16573496efd2fd0ec36f57031d478f87.tar.xz | |
drm/radeon/kms: add support for internal thermal sensor on SI
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/si.c | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/sid.h | 8 |
4 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index aaad93d7076b..c75ccc7f181f 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -241,6 +241,7 @@ extern int rv6xx_get_temp(struct radeon_device *rdev); extern int rv770_get_temp(struct radeon_device *rdev); extern int evergreen_get_temp(struct radeon_device *rdev); extern int sumo_get_temp(struct radeon_device *rdev); +extern int si_get_temp(struct radeon_device *rdev); extern void evergreen_tiling_fields(unsigned tiling_flags, unsigned *bankw, unsigned *bankh, unsigned *mtaspect, unsigned *tile_split); diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 3575129c1940..a6dbefca56dd 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -474,6 +474,9 @@ static ssize_t radeon_hwmon_show_temp(struct device *dev, case THERMAL_TYPE_SUMO: temp = sumo_get_temp(rdev); break; + case THERMAL_TYPE_SI: + temp = si_get_temp(rdev); + break; default: temp = 0; break; @@ -514,6 +517,7 @@ static int radeon_hwmon_init(struct radeon_device *rdev) case THERMAL_TYPE_EVERGREEN: case THERMAL_TYPE_NI: case THERMAL_TYPE_SUMO: + case THERMAL_TYPE_SI: rdev->pm.int_hwmon_dev = hwmon_device_register(rdev->dev); if (IS_ERR(rdev->pm.int_hwmon_dev)) { err = PTR_ERR(rdev->pm.int_hwmon_dev); diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 39c64df005cf..3e91429d7bd2 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -28,6 +28,25 @@ #include "sid.h" #include "atom.h" +/* get temperature in millidegrees */ +int si_get_temp(struct radeon_device *rdev) +{ + u32 temp; + int actual_temp = 0; + + temp = (RREG32(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; +} + /* watermark setup */ static u32 dce6_line_buffer_adjust(struct radeon_device *rdev, struct radeon_crtc *radeon_crtc, diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index 962cc17a6076..f565a8fa7ead 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -24,6 +24,14 @@ #ifndef SI_H #define SI_H +#define CG_MULT_THERMAL_STATUS 0x714 +#define ASIC_MAX_TEMP(x) ((x) << 0) +#define ASIC_MAX_TEMP_MASK 0x000001ff +#define ASIC_MAX_TEMP_SHIFT 0 +#define CTF_TEMP(x) ((x) << 9) +#define CTF_TEMP_MASK 0x0003fe00 +#define CTF_TEMP_SHIFT 9 + #define MC_SHARED_CHMAP 0x2004 #define NOOFCHAN_SHIFT 12 #define NOOFCHAN_MASK 0x0000f000 |