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drm/radeon/kms: rv6xx+ thermal sensor fixes

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Some fixes to the thermal sensor code:
- handle negative numbers
- properly handle temp calculation on different asics

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-02-01 16:12:34 -05:00 committed by Dave Airlie
parent e98ce0d7cf
commit 20d391d725
5 changed files with 35 additions and 23 deletions
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21
drivers/gpu/drm/radeon/evergreen.c
View file

@ -97,26 +97,29 @@ u32 evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
}
/* get temperature in millidegrees */
u32 evergreen_get_temp(struct radeon_device *rdev)
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 >> 10) & 1)
actual_temp = 0;
else if ((temp >> 9) & 1)
if (temp & 0x400)
actual_temp = -256;
else if (temp & 0x200)
actual_temp = 255;
else
actual_temp = (temp >> 1) & 0xff;
else if (temp & 0x100) {
actual_temp = temp & 0x1ff;
actual_temp |= ~0x1ff;
} else
actual_temp = temp & 0xff;
return actual_temp * 1000;
return (actual_temp * 1000) / 2;
}
u32 sumo_get_temp(struct radeon_device *rdev)
int sumo_get_temp(struct radeon_device *rdev)
{
u32 temp = RREG32(CG_THERMAL_STATUS) & 0xff;
u32 actual_temp = (temp >> 1) & 0xff;
int actual_temp = temp - 49;
return actual_temp * 1000;
}

8
drivers/gpu/drm/radeon/r600.c
View file

@ -97,12 +97,16 @@ void r600_irq_disable(struct radeon_device *rdev);
static void r600_pcie_gen2_enable(struct radeon_device *rdev);
/* get temperature in millidegrees */
u32 rv6xx_get_temp(struct radeon_device *rdev)
int rv6xx_get_temp(struct radeon_device *rdev)
{
u32 temp = (RREG32(CG_THERMAL_STATUS) & ASIC_T_MASK) >>
ASIC_T_SHIFT;
int actual_temp = temp & 0xff;
return temp * 1000;
if (temp & 0x100)
actual_temp -= 256;
return actual_temp * 1000;
}
void r600_pm_get_dynpm_state(struct radeon_device *rdev)

8
drivers/gpu/drm/radeon/radeon.h
View file

@ -179,10 +179,10 @@ void radeon_combios_get_power_modes(struct radeon_device *rdev);
void radeon_atombios_get_power_modes(struct radeon_device *rdev);
void radeon_atom_set_voltage(struct radeon_device *rdev, u16 level);
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);
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);
/*
* Fences.

2
drivers/gpu/drm/radeon/radeon_pm.c
View file

@ -430,7 +430,7 @@ static ssize_t radeon_hwmon_show_temp(struct device *dev,
{
struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
struct radeon_device *rdev = ddev->dev_private;
u32 temp;
int temp;
switch (rdev->pm.int_thermal_type) {
case THERMAL_TYPE_RV6XX:

19
drivers/gpu/drm/radeon/rv770.c
View file

@ -78,18 +78,23 @@ u32 rv770_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
}
/* get temperature in millidegrees */
u32 rv770_get_temp(struct radeon_device *rdev)
int rv770_get_temp(struct radeon_device *rdev)
{
u32 temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >>
ASIC_T_SHIFT;
u32 actual_temp = 0;
int actual_temp;
if ((temp >> 9) & 1)
actual_temp = 0;
else
actual_temp = (temp >> 1) & 0xff;
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;
return actual_temp * 1000;
return (actual_temp * 1000) / 2;
}
void rv770_pm_misc(struct radeon_device *rdev)