drm/radeon/kms: use tracked values for sclk and mclk
Rather than calling get_memory_clock and get_engine_clock,
used the tracked values from the pm code. Calling the tables
adds additional latency in the modesetting and pm paths.
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 69b3c22..256d204 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -293,30 +293,20 @@
void radeon_update_bandwidth_info(struct radeon_device *rdev)
{
fixed20_12 a;
- u32 sclk, mclk;
+ u32 sclk = rdev->pm.current_sclk;
+ u32 mclk = rdev->pm.current_mclk;
+
+ /* sclk/mclk in Mhz */
+ a.full = dfixed_const(100);
+ rdev->pm.sclk.full = dfixed_const(sclk);
+ rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
+ rdev->pm.mclk.full = dfixed_const(mclk);
+ rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
if (rdev->flags & RADEON_IS_IGP) {
- sclk = radeon_get_engine_clock(rdev);
- mclk = rdev->clock.default_mclk;
-
- a.full = dfixed_const(100);
- rdev->pm.sclk.full = dfixed_const(sclk);
- rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
- rdev->pm.mclk.full = dfixed_const(mclk);
- rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
-
a.full = dfixed_const(16);
/* core_bandwidth = sclk(Mhz) * 16 */
rdev->pm.core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
- } else {
- sclk = radeon_get_engine_clock(rdev);
- mclk = radeon_get_memory_clock(rdev);
-
- a.full = dfixed_const(100);
- rdev->pm.sclk.full = dfixed_const(sclk);
- rdev->pm.sclk.full = dfixed_div(rdev->pm.sclk, a);
- rdev->pm.mclk.full = dfixed_const(mclk);
- rdev->pm.mclk.full = dfixed_div(rdev->pm.mclk, a);
}
}