On 04/24/2017 01:57 PM, Chunming Zhou wrote:
It will be used for reserving vmid.
Change-Id: Ib7169ea999690c8e82d0dcbccdd2d97760c0270a
Signed-off-by: Chunming Zhou <david1.z...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 16 ++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 1 +
include/uapi/drm/amdgpu_drm.h | 20 ++++++++++++++++++++
4 files changed, 38 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index cad589a..7004e6c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -1051,6 +1051,7 @@ int amdgpu_get_vblank_timestamp_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),
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index f804d38..eb429c5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2358,3 +2358,19 @@ 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;
+ struct amdgpu_device *adev = dev->dev_private;
+ struct amdgpu_fpriv *fpriv = filp->driver_priv;
+
+ switch (args->in.op) {
+ case AMDGPU_VM_OP_RESERVE_VMID:
How do you think to add an op to release the reserved vmid as well?
Jerry
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 0f547c6..62dbace 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -247,5 +247,6 @@ 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
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index 56b7a2f3..5ee639b 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -51,6 +51,7 @@
#define DRM_AMDGPU_GEM_OP 0x10
#define DRM_AMDGPU_GEM_USERPTR 0x11
#define DRM_AMDGPU_WAIT_FENCES 0x12
+#define DRM_AMDGPU_VM 0x13
/* hybrid specific ioctls */
#define DRM_AMDGPU_SEM 0x5b
@@ -71,6 +72,7 @@
#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)
/* hybrid specific ioctls */
#define DRM_IOCTL_AMDGPU_GEM_DGMA DRM_IOWR(DRM_COMMAND_BASE +
DRM_AMDGPU_GEM_DGMA, struct drm_amdgpu_gem_dgma)
@@ -212,6 +214,24 @@ struct drm_amdgpu_ctx_in {
union drm_amdgpu_ctx_out out;
};
+/* vm ioctl */
+#define AMDGPU_VM_OP_RESERVE_VMID 1
+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;
+};
+
/* sem related */
#define AMDGPU_SEM_OP_CREATE_SEM 1
#define AMDGPU_SEM_OP_WAIT_SEM 2
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