mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
6f2c8d5f16
User reported gpu page fault when running graphics applications and in some cases garbaged graphics are observed as soon as X starts. This patch fixes all the issues. Fixed the typecast issue for fpfn and lpfn variables, thus preventing the overflow problem which resolves the memory corruption. Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> Reported-by: Mike Lothian <mike@fireburn.co.uk> Tested-by: Mike Lothian <mike@fireburn.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20220714101214.7620-1-Arunpravin.PaneerSelvam@amd.com Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com>
63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/* SPDX-License-Identifier: MIT
|
|
* Copyright 2021 Advanced Micro Devices, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#ifndef __AMDGPU_VRAM_MGR_H__
|
|
#define __AMDGPU_VRAM_MGR_H__
|
|
|
|
#include <drm/drm_buddy.h>
|
|
|
|
struct amdgpu_vram_mgr {
|
|
struct ttm_resource_manager manager;
|
|
struct drm_buddy mm;
|
|
/* protects access to buffer objects */
|
|
struct mutex lock;
|
|
struct list_head reservations_pending;
|
|
struct list_head reserved_pages;
|
|
atomic64_t vis_usage;
|
|
u64 default_page_size;
|
|
};
|
|
|
|
struct amdgpu_vram_mgr_resource {
|
|
struct ttm_resource base;
|
|
struct list_head blocks;
|
|
unsigned long flags;
|
|
};
|
|
|
|
static inline u64 amdgpu_vram_mgr_block_start(struct drm_buddy_block *block)
|
|
{
|
|
return drm_buddy_block_offset(block);
|
|
}
|
|
|
|
static inline u64 amdgpu_vram_mgr_block_size(struct drm_buddy_block *block)
|
|
{
|
|
return (u64)PAGE_SIZE << drm_buddy_block_order(block);
|
|
}
|
|
|
|
static inline struct amdgpu_vram_mgr_resource *
|
|
to_amdgpu_vram_mgr_resource(struct ttm_resource *res)
|
|
{
|
|
return container_of(res, struct amdgpu_vram_mgr_resource, base);
|
|
}
|
|
|
|
#endif
|