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

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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
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drivers/gpu/drm/radeon/rs400.c
+1
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@@ -356,6 +356,7 @@ static int rs400_mc_init(struct radeon_device *rdev)
rdev->mc.vram_location = G_00015C_MC_FB_START(tmp) << 16;
rdev->mc.gtt_location = 0xFFFFFFFFUL;
r = radeon_mc_setup(rdev);
rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
if (r)
return r;
return 0;