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video/rockchip: rga: adapt to kernel 4.4

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Signed-off-by: Yu Qiaowei <cerf.yu@rock-chips.com>
Change-Id: Ic1f8e21e5d1841d3533d0d74d46caf668c48645e
This commit is contained in:
Yu Qiaowei
2022-11-25 14:35:06 +08:00
committed by Tao Huang
parent 2dd6530d31
commit 475afae810
1 changed files with 56 additions and 46 deletions
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102
drivers/video/rockchip/rga/rga_mmu_info.c
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@@ -44,6 +44,46 @@ static int rga_mmu_buf_get(struct rga_mmu_buf_t *t, uint32_t size)
return 0;
}
static void rga_current_mm_read_lock(struct mm_struct *mm)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
mmap_read_lock(mm);
#else
down_read(&mm->mmap_sem);
#endif
}
static void rga_current_mm_read_unlock(struct mm_struct *mm)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
mmap_read_unlock(mm);
#else
up_read(&mm->mmap_sem);
#endif
}
static long rga_get_user_pages(struct page **pages, unsigned long Memory,
uint32_t pageCount, int writeFlag,
struct mm_struct *current_mm)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 168) && \
LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
return get_user_pages(current, current_mm, Memory << PAGE_SHIFT,
pageCount, writeFlag ? FOLL_WRITE : 0, pages, NULL);
#elif LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
return get_user_pages(current, current_mm, Memory << PAGE_SHIFT,
pageCount, writeFlag ? FOLL_WRITE : 0, 0, pages, NULL);
#elif LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0)
return get_user_pages_remote(current, current_mm, Memory << PAGE_SHIFT,
pageCount, writeFlag ? FOLL_WRITE : 0, pages,
NULL, NULL);
#else
return get_user_pages_remote(current_mm, Memory << PAGE_SHIFT,
pageCount, writeFlag ? FOLL_WRITE : 0, pages,
NULL, NULL);
#endif
}
static int rga_mmu_buf_get_try(struct rga_mmu_buf_t *t, uint32_t size)
{
int ret = 0;
@@ -333,29 +373,11 @@ static int rga_MapUserMemory(struct page **pages,
Address = 0;
do {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
mmap_read_lock(current->mm);
#else
down_read(&current->mm->mmap_sem);
#endif
rga_current_mm_read_lock(current->mm);
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
result = get_user_pages(current, current->mm,
Memory << PAGE_SHIFT, pageCount, 1, 0,
pages, NULL);
#elif LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0)
result = get_user_pages_remote(current, current->mm,
Memory << PAGE_SHIFT, pageCount, 1, pages, NULL, NULL);
#else
result = get_user_pages_remote(current->mm, Memory << PAGE_SHIFT,
pageCount, 1, pages, NULL, NULL);
#endif
result = rga_get_user_pages(pages, Memory, pageCount, 1, current->mm);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
mmap_read_unlock(current->mm);
#else
up_read(&current->mm->mmap_sem);
#endif
rga_current_mm_read_unlock(current->mm);
#if 0
if(result <= 0 || result < pageCount)
@@ -383,19 +405,13 @@ static int rga_MapUserMemory(struct page **pages,
struct vm_area_struct *vma;
if (result>0) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
mmap_read_lock(current->mm);
#else
down_read(&current->mm->mmap_sem);
#endif
for (i = 0; i < result; i++)
put_page(pages[i]);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
mmap_read_unlock(current->mm);
#else
up_read(&current->mm->mmap_sem);
#endif
}
rga_current_mm_read_lock(current->mm);
for (i = 0; i < result; i++)
put_page(pages[i]);
rga_current_mm_read_unlock(current->mm);
}
for(i=0; i<pageCount; i++)
{
@@ -484,18 +500,12 @@ static int rga_MapUserMemory(struct page **pages,
pageTable[i] = page_to_phys(pages[i]);
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
mmap_read_lock(current->mm);
#else
down_read(&current->mm->mmap_sem);
#endif
for (i = 0; i < result; i++)
put_page(pages[i]);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
mmap_read_unlock(current->mm);
#else
up_read(&current->mm->mmap_sem);
#endif
rga_current_mm_read_lock(current->mm);
for (i = 0; i < result; i++)
put_page(pages[i]);
rga_current_mm_read_unlock(current->mm);
return 0;
}