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drm/radeon/kms: add thermal sensor support for fusion APUs

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Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-11-22 17:56:32 -05:00 committed by Dave Airlie
parent d5e455e48b
commit e33df25fec
4 changed files with 17 additions and 1 deletions
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8
drivers/gpu/drm/radeon/evergreen.c
View file

@ -57,6 +57,14 @@ u32 evergreen_get_temp(struct radeon_device *rdev)
return actual_temp * 1000;
}
u32 sumo_get_temp(struct radeon_device *rdev)
{
u32 temp = RREG32(CG_THERMAL_STATUS) & 0xff;
u32 actual_temp = (temp >> 1) & 0xff;
return actual_temp * 1000;
}
void evergreen_pm_misc(struct radeon_device *rdev)
{
int req_ps_idx = rdev->pm.requested_power_state_index;

4
drivers/gpu/drm/radeon/evergreend.h
View file

@ -164,11 +164,13 @@
#define SE_SC_BUSY (1 << 29)
#define SE_DB_BUSY (1 << 30)
#define SE_CB_BUSY (1 << 31)
/* evergreen */
#define CG_MULT_THERMAL_STATUS 0x740
#define ASIC_T(x) ((x) << 16)
#define ASIC_T_MASK 0x7FF0000
#define ASIC_T_SHIFT 16
/* APU */
#define CG_THERMAL_STATUS 0x678
#define HDP_HOST_PATH_CNTL 0x2C00
#define HDP_NONSURFACE_BASE 0x2C04

2
drivers/gpu/drm/radeon/radeon.h
View file

@ -180,6 +180,7 @@ void rs690_pm_info(struct radeon_device *rdev);
extern u32 rv6xx_get_temp(struct radeon_device *rdev);
extern u32 rv770_get_temp(struct radeon_device *rdev);
extern u32 evergreen_get_temp(struct radeon_device *rdev);
extern u32 sumo_get_temp(struct radeon_device *rdev);
/*
* Fences.
@ -687,6 +688,7 @@ enum radeon_int_thermal_type {
THERMAL_TYPE_RV6XX,
THERMAL_TYPE_RV770,
THERMAL_TYPE_EVERGREEN,
THERMAL_TYPE_SUMO,
};
struct radeon_voltage {

4
drivers/gpu/drm/radeon/radeon_pm.c
View file

@ -449,6 +449,9 @@ static ssize_t radeon_hwmon_show_temp(struct device *dev,
case THERMAL_TYPE_EVERGREEN:
temp = evergreen_get_temp(rdev);
break;
case THERMAL_TYPE_SUMO:
temp = sumo_get_temp(rdev);
break;
default:
temp = 0;
break;
@ -487,6 +490,7 @@ static int radeon_hwmon_init(struct radeon_device *rdev)
case THERMAL_TYPE_RV6XX:
case THERMAL_TYPE_RV770:
case THERMAL_TYPE_EVERGREEN:
case THERMAL_TYPE_SUMO:
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);