summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/radeon/radeon_kms.c
diff options
context:
space:
mode:
authorFelix Kuehling <Felix.Kuehling@amd.com>2017-04-20 14:41:34 -0400
committerAlex Deucher <alexander.deucher@amd.com>2017-05-24 18:22:50 -0400
commite7f78b69aba479728865ef3ec4229b372fc79f94 (patch)
tree2b83271bce7ba877bc81d2b26e414237d7c27d61 /drivers/gpu/drm/radeon/radeon_kms.c
parent9c2e1ae3ae2fe4759359d76f1e639e0eb4f79030 (diff)
drm/radeon: Add module param to control CIK support
If AMDGPU supports CIK, add a module parameter to control CIK support in radeon. It's off by default in radeon, while it will be on by default in AMDGPU. Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Acked-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_kms.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_kms.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 6a68d440bc44..f0abba3caac2 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -98,6 +98,24 @@ int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags)
struct radeon_device *rdev;
int r, acpi_status;
+#ifdef CONFIG_DRM_AMDGPU_CIK
+ if (!radeon_cik_support) {
+ switch (flags & RADEON_FAMILY_MASK) {
+ case CHIP_KAVERI:
+ case CHIP_BONAIRE:
+ case CHIP_HAWAII:
+ case CHIP_KABINI:
+ case CHIP_MULLINS:
+ dev_info(dev->dev,
+ "CIK support provided by amdgpu.\n");
+ dev_info(dev->dev,
+ "Use radeon.cik_support=1 amdgpu.cik_support=0 to override.\n"
+ );
+ return -ENODEV;
+ }
+ }
+#endif
+
rdev = kzalloc(sizeof(struct radeon_device), GFP_KERNEL);
if (rdev == NULL) {
return -ENOMEM;