drm/radeon/kms: detect sideport memory on IGP chips

This detects if the sideport memory is enabled and
if it is VRAM is evicted on suspend/resume.

This should fix s/r issues on some IGPs.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2010-01-05 11:27:29 -05:00
committed by Dave Airlie
parent fc9a89f97e
commit 06b6476d6b
8 changed files with 64 additions and 3 deletions

View File

@@ -726,6 +726,10 @@ int r600_mc_init(struct radeon_device *rdev)
a.full = rfixed_const(100);
rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
if (rdev->flags & RADEON_IS_IGP)
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
return 0;
}