[libdrm,2/3] amdgpu: vamgr_32 can be a struct instead of a pointer

Commit Message

Grazvydas Ignotas Jan. 28, 2017, 7:49 p.m. UTC

From: Alex Xie <[e-mail]>

vamgr_32 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 <[e-mail]>
Reviewed-by: Christian König <[e-mail]>
[Grazvydas Ignotas: rebase, correct a typo in commit message]
---
 amdgpu/amdgpu_device.c   | 8 ++------
 amdgpu/amdgpu_internal.h | 2 +-
 amdgpu/amdgpu_vamgr.c    | 4 ++--
 3 files changed, 5 insertions(+), 9 deletions(-)

Patch

diff --git a/amdgpu/amdgpu_device.c b/amdgpu/amdgpu_device.c
index cad7133..11714e4 100644
--- a/amdgpu/amdgpu_device.c
+++ b/amdgpu/amdgpu_device.c
@@ -131,8 +131,7 @@  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);
-	free(dev->vamgr_32);
+	amdgpu_vamgr_deinit(&dev->vamgr_32);
 	amdgpu_vamgr_deinit(dev->vamgr);
 	free(dev->vamgr);
 	util_hash_table_destroy(dev->bo_flink_names);
@@ -270,10 +269,7 @@  int amdgpu_device_initialize(int fd,
 	if (start > 0xffffffff)
 		goto free_va; /* shouldn't get here */
 
-	dev->vamgr_32 =  calloc(1, sizeof(struct amdgpu_bo_va_mgr));
-	if (dev->vamgr_32 == NULL)
-		goto free_va;
-	amdgpu_vamgr_init(dev->vamgr_32, start, max,
+	amdgpu_vamgr_init(&dev->vamgr_32, start, max,
 			  dev->dev_info.virtual_address_alignment);
 
 	*major_version = dev->major_version;
diff --git a/amdgpu/amdgpu_internal.h b/amdgpu/amdgpu_internal.h
index 4f039b6..7e237ac 100644
--- a/amdgpu/amdgpu_internal.h
+++ b/amdgpu/amdgpu_internal.h
@@ -87,7 +87,7 @@  struct amdgpu_device {
 	/** The global VA manager for the whole virtual address space */
 	struct amdgpu_bo_va_mgr *vamgr;
 	/** The VA manager for the 32bit address space */
-	struct amdgpu_bo_va_mgr *vamgr_32;
+	struct amdgpu_bo_va_mgr vamgr_32;
 };
 
 struct amdgpu_bo {
diff --git a/amdgpu/amdgpu_vamgr.c b/amdgpu/amdgpu_vamgr.c
index 8a707cb..4dc4253 100644
--- a/amdgpu/amdgpu_vamgr.c
+++ b/amdgpu/amdgpu_vamgr.c
@@ -236,7 +236,7 @@  int amdgpu_va_range_alloc(amdgpu_device_handle dev,
 	struct amdgpu_bo_va_mgr *vamgr;
 
 	if (flags & AMDGPU_VA_RANGE_32_BIT)
-		vamgr = dev->vamgr_32;
+		vamgr = &dev->vamgr_32;
 	else
 		vamgr = dev->vamgr;
 
@@ -249,7 +249,7 @@  int amdgpu_va_range_alloc(amdgpu_device_handle dev,
 	if (!(flags & AMDGPU_VA_RANGE_32_BIT) &&
 	    (*va_base_allocated == AMDGPU_INVALID_VA_ADDRESS)) {
 		/* fallback to 32bit address */
-		vamgr = dev->vamgr_32;
+		vamgr = &dev->vamgr_32;
 		*va_base_allocated = amdgpu_vamgr_find_va(vamgr, size,
 					va_base_alignment, va_base_required);
 	}