diff options
| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2017-06-05 18:43:27 +0900 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-06-08 10:54:33 -0400 |
| commit | 7df289865c69ea39e1f81de0abe839acc54e604b (patch) | |
| tree | 56b9e15657d44ddb04aa0b1cf12bc6586da4e453 | |
| parent | b9683c21f69b3d8d7b6741d31a0e3cbf26c7191b (diff) | |
drm/amdgpu: Add module param to control CIK support
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>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 15 |
3 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 3308e6200690..87210091720b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -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 */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 89867782acf0..a1aeac66157c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -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}, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index cda06a1bd7d7..e0911798e2c2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -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; |