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authorAlex Deucher <alexander.deucher@amd.com>2011-12-21 20:58:17 +0400
committerDave Airlie <airlied@redhat.com>2011-12-22 16:28:01 +0400
commit77e00f2ea94abee1ad13bdfde19cf7aa25992b0e (patch)
tree50e78e51501effeb8f7a474d08d65d3d9fabe78c /drivers
parentb9e26dfdad5a4f9cbdaacafac6998614cc9c41bc (diff)
downloadlinux-77e00f2ea94abee1ad13bdfde19cf7aa25992b0e.tar.xz
drm/radeon/kms: bail on BTC parts if MC ucode is missing
We already do this for cayman, need to also do it for BTC parts. The default memory and voltage setup is not adequate for advanced operation. Continuing will result in an unusable display. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@kernel.org Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/radeon/evergreen.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 5e00d1670aa9..92c9628c572d 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3276,6 +3276,18 @@ int evergreen_init(struct radeon_device *rdev)
rdev->accel_working = false;
}
}
+
+ /* Don't start up if the MC ucode is missing on BTC parts.
+ * The default clocks and voltages before the MC ucode
+ * is loaded are not suffient for advanced operations.
+ */
+ if (ASIC_IS_DCE5(rdev)) {
+ if (!rdev->mc_fw && !(rdev->flags & RADEON_IS_IGP)) {
+ DRM_ERROR("radeon: MC ucode required for NI+.\n");
+ return -EINVAL;
+ }
+ }
+
return 0;
}