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From: Nirmoy Das <nirmoy.das@amd.com>
To: amd-gfx@lists.freedesktop.org
Cc: alexander.deucher@amd.com, Nirmoy Das <nirmoy.das@amd.com>,
	Christian.Koenig@amd.com
Subject: [PATCH 1/7] drm/amdgpu: add amdgpu_bo_vm bo type
Date: Fri, 21 May 2021 14:45:27 +0200	[thread overview]
Message-ID: <20210521124533.4380-1-nirmoy.das@amd.com> (raw)

Add new BO subcalss that will be used by amdgpu vm code.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 32 ++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 10 +++++++
 2 files changed, 42 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 745fcf3ea450..61b1edcb490a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -692,6 +692,38 @@ int amdgpu_bo_create_user(struct amdgpu_device *adev,
 	*ubo_ptr = to_amdgpu_bo_user(bo_ptr);
 	return r;
 }
+
+/**
+ * amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object
+ * @adev: amdgpu device object
+ * @bp: parameters to be used for the buffer object
+ * @vmbo_ptr: pointer to the buffer object pointer
+ *
+ * Create a BO to be for GPUVM.
+ *
+ * Returns:
+ * 0 for success or a negative error code on failure.
+ */
+
+int amdgpu_bo_create_vm(struct amdgpu_device *adev,
+			struct amdgpu_bo_param *bp,
+			struct amdgpu_bo_vm **vmbo_ptr)
+{
+	struct amdgpu_bo *bo_ptr;
+	int r;
+
+	/* bo_ptr_size will be determined by the caller and it depends on
+	 * num of amdgpu_vm_pt entries.
+	 */
+	BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
+	r = amdgpu_bo_create(adev, bp, &bo_ptr);
+	if (r)
+		return r;
+
+	*vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
+	return r;
+}
+
 /**
  * amdgpu_bo_validate - validate an &amdgpu_bo buffer object
  * @bo: pointer to the buffer object
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index 11480c5a2716..a7fbf5f7051e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -44,6 +44,7 @@
 #define AMDGPU_AMDKFD_CREATE_SVM_BO	(1ULL << 62)
 
 #define to_amdgpu_bo_user(abo) container_of((abo), struct amdgpu_bo_user, bo)
+#define to_amdgpu_bo_vm(abo) container_of((abo), struct amdgpu_bo_vm, bo)
 
 struct amdgpu_bo_param {
 	unsigned long			size;
@@ -125,6 +126,12 @@ struct amdgpu_bo_user {
 
 };
 
+struct amdgpu_bo_vm {
+	struct amdgpu_bo		bo;
+	struct amdgpu_bo		*shadow;
+	struct amdgpu_vm_pt             entries[];
+};
+
 static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)
 {
 	return container_of(tbo, struct amdgpu_bo, tbo);
@@ -272,6 +279,9 @@ int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
 int amdgpu_bo_create_user(struct amdgpu_device *adev,
 			  struct amdgpu_bo_param *bp,
 			  struct amdgpu_bo_user **ubo_ptr);
+int amdgpu_bo_create_vm(struct amdgpu_device *adev,
+			struct amdgpu_bo_param *bp,
+			struct amdgpu_bo_vm **ubo_ptr);
 void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
 			   void **cpu_addr);
 int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
-- 
2.31.1

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             reply	other threads:[~2021-05-21 12:46 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 12:45 Nirmoy Das [this message]
2021-05-21 12:45 ` [PATCH 2/7] drm/amdgpu: add a new identifier for amdgpu_bo Nirmoy Das
2021-05-21 12:58   ` Christian König
2021-05-21 13:54     ` Nirmoy
2021-05-21 12:45 ` [PATCH 3/7] drm/amdgpu: use amdgpu_bo_vm for vm code Nirmoy Das
2021-05-21 12:45 ` [PATCH 4/7] drm/amdgpu: create shadow bo directly Nirmoy Das
2021-05-21 12:45 ` [PATCH 5/7] drm/amdgpu: switch to amdgpu_bo_vm's shadow Nirmoy Das
2021-05-21 12:45 ` [PATCH 6/7] drm/amdgpu: remove unused code Nirmoy Das
2021-05-21 12:45 ` [PATCH 7/7] drm/amdgpu: do not allocate entries separately Nirmoy Das
2021-05-21 13:01   ` Christian König
2021-05-21 14:04     ` Nirmoy
2021-05-21 14:54 ` [PATCH 1/7] drm/amdgpu: add amdgpu_bo_vm bo type Alex Deucher
2021-05-21 15:19   ` Nirmoy
2021-05-26 10:10 Nirmoy Das
2021-05-26 12:01 ` Christian König

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