drm/radeon/kms: display watermark fixes
- rs780/880 were using the wrong bandwidth functions
- convert r1xx-r4xx to use the same pm sclk/mclk structs as
r5xx+
- move bandwidth setup to a common function
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 581b75a..6bedc21 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -241,6 +241,36 @@
}
+void radeon_update_bandwidth_info(struct radeon_device *rdev)
+{
+ fixed20_12 a;
+ u32 sclk, mclk;
+
+ if (rdev->flags & RADEON_IS_IGP) {
+ sclk = radeon_get_engine_clock(rdev);
+ mclk = rdev->clock.default_mclk;
+
+ a.full = rfixed_const(100);
+ rdev->pm.sclk.full = rfixed_const(sclk);
+ rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
+ rdev->pm.mclk.full = rfixed_const(mclk);
+ rdev->pm.mclk.full = rfixed_div(rdev->pm.mclk, a);
+
+ a.full = rfixed_const(16);
+ /* core_bandwidth = sclk(Mhz) * 16 */
+ rdev->pm.core_bandwidth.full = rfixed_div(rdev->pm.sclk, a);
+ } else {
+ sclk = radeon_get_engine_clock(rdev);
+ mclk = radeon_get_memory_clock(rdev);
+
+ a.full = rfixed_const(100);
+ rdev->pm.sclk.full = rfixed_const(sclk);
+ rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
+ rdev->pm.mclk.full = rfixed_const(mclk);
+ rdev->pm.mclk.full = rfixed_div(rdev->pm.mclk, a);
+ }
+}
+
bool radeon_boot_test_post_card(struct radeon_device *rdev)
{
if (radeon_card_posted(rdev))