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drm/radeon: Add module param to control CIK support

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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>
This commit is contained in:
Felix Kuehling 2017-04-20 14:41:34 -04:00 committed by Alex Deucher
parent 9c2e1ae3ae
commit e7f78b69ab
3 changed files with 28 additions and 0 deletions
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4
drivers/gpu/drm/radeon/radeon.h
View File

@ -116,6 +116,10 @@ extern int radeon_mst;
extern int radeon_uvd;
extern int radeon_vce;
#ifdef CONFIG_DRM_AMDGPU_CIK
extern int radeon_cik_support;
#endif
/*
* Copy from radeon_drv.h so we don't have to include both and have conflicting
* symbol;

6
drivers/gpu/drm/radeon/radeon_drv.c
View File

@ -295,6 +295,12 @@ module_param_named(uvd, radeon_uvd, int, 0444);
MODULE_PARM_DESC(vce, "vce enable/disable vce support (1 = enable, 0 = disable)");
module_param_named(vce, radeon_vce, int, 0444);
#ifdef CONFIG_DRM_AMDGPU_CIK
int radeon_cik_support = 0;
MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled, 0 = disabled (default))");
module_param_named(cik_support, radeon_cik_support, int, 0444);
#endif
static struct pci_device_id pciidlist[] = {
radeon_PCI_IDS
};

18
drivers/gpu/drm/radeon/radeon_kms.c
View File

@ -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;