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authorMark Brown <broonie@linaro.org>2013-12-30 13:45:00 +0000
committerMark Brown <broonie@linaro.org>2013-12-30 13:45:00 +0000
commit68e67d97e1f91ed11e041b67f3a1336f518c608f (patch)
tree1de288bc05f1cf1bfec20200a60ffe99dcce77ae /drivers/gpu/drm/radeon/rs690.c
parent9e03d05eee4ca45ed12749ef6c26bf616262cdd2 (diff)
parent802eee95bde72fd0cd0f3a5b2098375a487d1eda (diff)
Merge tag 'v3.13-rc6' into spi-rcar
To resolve spurious merge conflicts with fixes. Linux 3.13-rc6
Diffstat (limited to 'drivers/gpu/drm/radeon/rs690.c')
-rw-r--r--drivers/gpu/drm/radeon/rs690.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 1c560629575..e7dab069ccc 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -162,6 +162,16 @@ static void rs690_mc_init(struct radeon_device *rdev)
base = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
base = G_000100_MC_FB_START(base) << 16;
rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
+ /* Some boards seem to be configured for 128MB of sideport memory,
+ * but really only have 64MB. Just skip the sideport and use
+ * UMA memory.
+ */
+ if (rdev->mc.igp_sideport_enabled &&
+ (rdev->mc.real_vram_size == (384 * 1024 * 1024))) {
+ base += 128 * 1024 * 1024;
+ rdev->mc.real_vram_size -= 128 * 1024 * 1024;
+ rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
+ }
/* Use K8 direct mapping for fast fb access. */
rdev->fastfb_working = false;