drm/radeon/kms: add support for internal thermal sensors (v3)
rv6xx/rv7xx/evergreen families supported; older asics did
not have an internal thermal sensor.
Note, not all oems use the internal thermal sensor, so it's
only exposed in cases where it is used.
Note also, that most laptops use an oem specific ACPI solution for
GPU thermal information rather than using the internal thermal
sensor directly.
v2: export millidegrees celsius, use hwmon device properly.
v3: fix Kconfig
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h
index 9506f8c..fd733f2 100644
--- a/drivers/gpu/drm/radeon/rv770d.h
+++ b/drivers/gpu/drm/radeon/rv770d.h
@@ -122,6 +122,11 @@
#define GUI_ACTIVE (1<<31)
#define GRBM_STATUS2 0x8014
+#define CG_MULT_THERMAL_STATUS 0x740
+#define ASIC_T(x) ((x) << 16)
+#define ASIC_T_MASK 0x3FF0000
+#define ASIC_T_SHIFT 16
+
#define HDP_HOST_PATH_CNTL 0x2C00
#define HDP_NONSURFACE_BASE 0x2C04
#define HDP_NONSURFACE_INFO 0x2C08