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drm/amdgpu: Add module param to control CIK support

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If AMDGPU supports CIK, add a module parameter to control CIK
support. It's on by default in AMDGPU, while it is off by default
in radeon.

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>
This commit is contained in:
Felix Kuehling 2017-06-05 18:43:27 +09:00 committed by Alex Deucher
parent b9683c21f6
commit 7df289865c
3 changed files with 26 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -115,6 +115,10 @@ extern int amdgpu_param_buf_per_se;
extern int amdgpu_job_hang_limit;
extern int amdgpu_lbpw;
#ifdef CONFIG_DRM_AMDGPU_CIK
extern int amdgpu_cik_support;
#endif
#define AMDGPU_DEFAULT_GTT_SIZE_MB 3072ULL /* 3GB by default */
#define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000
#define AMDGPU_MAX_USEC_TIMEOUT 100000 /* 100 ms */

7
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -242,6 +242,13 @@ module_param_named(job_hang_limit, amdgpu_job_hang_limit, int ,0444);
MODULE_PARM_DESC(lbpw, "Load Balancing Per Watt (LBPW) support (1 = enable, 0 = disable, -1 = auto)");
module_param_named(lbpw, amdgpu_lbpw, int, 0444);
#ifdef CONFIG_DRM_AMDGPU_CIK
int amdgpu_cik_support = 1;
MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)");
module_param_named(cik_support, amdgpu_cik_support, int, 0444);
#endif
static const struct pci_device_id pciidlist[] = {
#ifdef CONFIG_DRM_AMDGPU_SI
{0x1002, 0x6780, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_TAHITI},

15
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View File

@ -87,6 +87,21 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
struct amdgpu_device *adev;
int r, acpi_status;
#ifdef CONFIG_DRM_AMDGPU_CIK
if (!amdgpu_cik_support) {
switch (flags & AMD_ASIC_MASK) {
case CHIP_KAVERI:
case CHIP_BONAIRE:
case CHIP_HAWAII:
case CHIP_KABINI:
case CHIP_MULLINS:
dev_info(dev->dev,
"CIK support disabled by module param\n");
return -ENODEV;
}
}
#endif
adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
if (adev == NULL) {
return -ENOMEM;