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Code Issues Releases Wiki Activity

drm/amdgpu: add vm ioctl

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It will be used for reserving vmid for shader debugging
that requires a fixed vmid.

v2: fix warning (Alex)

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2017-04-24 11:09:04 +08:00 committed by Alex Deucher
parent 63a7c7487f
commit cfbcacf428
4 changed files with 40 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View file

@ -948,6 +948,7 @@ void amdgpu_disable_vblank_kms(struct drm_device *dev, unsigned int pipe)
const struct drm_ioctl_desc amdgpu_ioctls_kms[] = {
DRM_IOCTL_DEF_DRV(AMDGPU_GEM_CREATE, amdgpu_gem_create_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(AMDGPU_CTX, amdgpu_ctx_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(AMDGPU_VM, amdgpu_vm_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(AMDGPU_BO_LIST, amdgpu_bo_list_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),
/* KMS */
DRM_IOCTL_DEF_DRV(AMDGPU_GEM_MMAP, amdgpu_gem_mmap_ioctl, DRM_AUTH|DRM_RENDER_ALLOW),

16
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View file

@ -2322,3 +2322,19 @@ void amdgpu_vm_manager_fini(struct amdgpu_device *adev)
}
}
}
int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
{
union drm_amdgpu_vm *args = data;
switch (args->in.op) {
case AMDGPU_VM_OP_RESERVE_VMID:
case AMDGPU_VM_OP_UNRESERVE_VMID:
return -EINVAL;
break;
default:
return -EINVAL;
}
return 0;
}

1
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
View file

@ -239,5 +239,6 @@ int amdgpu_vm_bo_clear_mappings(struct amdgpu_device *adev,
void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
struct amdgpu_bo_va *bo_va);
void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size);
int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
#endif

22
include/uapi/drm/amdgpu_drm.h
View file

@ -51,6 +51,7 @@ extern "C" {
#define DRM_AMDGPU_GEM_OP 0x10
#define DRM_AMDGPU_GEM_USERPTR 0x11
#define DRM_AMDGPU_WAIT_FENCES 0x12
#define DRM_AMDGPU_VM 0x13
#define DRM_IOCTL_AMDGPU_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_CREATE, union drm_amdgpu_gem_create)
#define DRM_IOCTL_AMDGPU_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_MMAP, union drm_amdgpu_gem_mmap)
@ -65,6 +66,7 @@ extern "C" {
#define DRM_IOCTL_AMDGPU_GEM_OP DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_OP, struct drm_amdgpu_gem_op)
#define DRM_IOCTL_AMDGPU_GEM_USERPTR DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_USERPTR, struct drm_amdgpu_gem_userptr)
#define DRM_IOCTL_AMDGPU_WAIT_FENCES DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_WAIT_FENCES, union drm_amdgpu_wait_fences)
#define DRM_IOCTL_AMDGPU_VM DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_VM, union drm_amdgpu_vm)
#define AMDGPU_GEM_DOMAIN_CPU 0x1
#define AMDGPU_GEM_DOMAIN_GTT 0x2
@ -190,6 +192,26 @@ union drm_amdgpu_ctx {
union drm_amdgpu_ctx_out out;
};
/* vm ioctl */
#define AMDGPU_VM_OP_RESERVE_VMID 1
#define AMDGPU_VM_OP_UNRESERVE_VMID 2
struct drm_amdgpu_vm_in {
/** AMDGPU_VM_OP_* */
__u32 op;
__u32 flags;
};
struct drm_amdgpu_vm_out {
/** For future use, no flags defined so far */
__u64 flags;
};
union drm_amdgpu_vm {
struct drm_amdgpu_vm_in in;
struct drm_amdgpu_vm_out out;
};
/*
* This is not a reliable API and you should expect it to fail for any
* number of reasons and have fallback path that do not use userptr to