[PATCH libdrm 3/3] amdgpu: vamgr can be a struct instead of a pointer

[notasas@xxxxxxxxx (Grazvydas Ignotas)]

From: Alex Xie <AlexBin.Xie@xxxxxxx>

vamgr is an integral part of amdgpu_device. We don't need to calloc and free it.
This can save CPU time, reduce heap fragmentation.

Signed-off-by: Alex Xie <AlexBin.Xie at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
[Grazvydas Ignotas: rebase, correct a typo in commit message]
---
 amdgpu/amdgpu_device.c   | 16 +++++-----------
 amdgpu/amdgpu_internal.h |  2 +-
 amdgpu/amdgpu_vamgr.c    |  2 +-
 3 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/amdgpu/amdgpu_device.c b/amdgpu/amdgpu_device.c
index 11714e4..f473d2d 100644
--- a/amdgpu/amdgpu_device.c
+++ b/amdgpu/amdgpu_device.c
@@ -132,8 +132,7 @@ static int amdgpu_get_auth(int fd, int *auth)
 static void amdgpu_device_free_internal(amdgpu_device_handle dev)
 {
 	amdgpu_vamgr_deinit(&dev->vamgr_32);
-	amdgpu_vamgr_deinit(dev->vamgr);
-	free(dev->vamgr);
+	amdgpu_vamgr_deinit(&dev->vamgr);
 	util_hash_table_destroy(dev->bo_flink_names);
 	util_hash_table_destroy(dev->bo_handles);
 	pthread_mutex_destroy(&dev->bo_table_mutex);
@@ -254,16 +253,12 @@ int amdgpu_device_initialize(int fd,
 	if (r)
 		goto cleanup;
 
-	dev->vamgr = calloc(1, sizeof(struct amdgpu_bo_va_mgr));
-	if (dev->vamgr == NULL)
-		goto cleanup;
-
-	amdgpu_vamgr_init(dev->vamgr, dev->dev_info.virtual_address_offset,
+	amdgpu_vamgr_init(&dev->vamgr, dev->dev_info.virtual_address_offset,
 			  dev->dev_info.virtual_address_max,
 			  dev->dev_info.virtual_address_alignment);
 
 	max = MIN2(dev->dev_info.virtual_address_max, 0xffffffff);
-	start = amdgpu_vamgr_find_va(dev->vamgr,
+	start = amdgpu_vamgr_find_va(&dev->vamgr,
 				     max - dev->dev_info.virtual_address_offset,
 				     dev->dev_info.virtual_address_alignment, 0);
 	if (start > 0xffffffff)
@@ -282,10 +277,9 @@ int amdgpu_device_initialize(int fd,
 
 free_va:
 	r = -ENOMEM;
-	amdgpu_vamgr_free_va(dev->vamgr, start,
+	amdgpu_vamgr_free_va(&dev->vamgr, start,
 			     max - dev->dev_info.virtual_address_offset);
-	amdgpu_vamgr_deinit(dev->vamgr);
-	free(dev->vamgr);
+	amdgpu_vamgr_deinit(&dev->vamgr);
 
 cleanup:
 	if (dev->fd >= 0)
diff --git a/amdgpu/amdgpu_internal.h b/amdgpu/amdgpu_internal.h
index 7e237ac..cf119a5 100644
--- a/amdgpu/amdgpu_internal.h
+++ b/amdgpu/amdgpu_internal.h
@@ -85,7 +85,7 @@ struct amdgpu_device {
 	struct drm_amdgpu_info_device dev_info;
 	struct amdgpu_gpu_info info;
 	/** The global VA manager for the whole virtual address space */
-	struct amdgpu_bo_va_mgr *vamgr;
+	struct amdgpu_bo_va_mgr vamgr;
 	/** The VA manager for the 32bit address space */
 	struct amdgpu_bo_va_mgr vamgr_32;
 };
diff --git a/amdgpu/amdgpu_vamgr.c b/amdgpu/amdgpu_vamgr.c
index 4dc4253..2b1388e 100644
--- a/amdgpu/amdgpu_vamgr.c
+++ b/amdgpu/amdgpu_vamgr.c
@@ -238,7 +238,7 @@ int amdgpu_va_range_alloc(amdgpu_device_handle dev,
 	if (flags & AMDGPU_VA_RANGE_32_BIT)
 		vamgr = &dev->vamgr_32;
 	else
-		vamgr = dev->vamgr;
+		vamgr = &dev->vamgr;
 
 	va_base_alignment = MAX2(va_base_alignment, vamgr->va_alignment);
 	size = ALIGN(size, vamgr->va_alignment);
-- 
2.7.4