codec_mm: changes the prot of pages to PAGE_KERNEL. [2/2]

PD#SWPL-4597

Problem:
Probabilistic full-screen display mosaic after seek 8K H265

Solution:
alloc mem area with the cached which from the vmap. this way
can improve the efficiency of I/O.

Change-Id: Icf18b9cd57bdc54f832aa827a535399939b28611
Signed-off-by: Nanxin Qin <nanxin.qin@amlogic.com>

diff --git a/drivers/amlogic/media/common/codec_mm/codec_mm.c b/drivers/amlogic/media/common/codec_mm/codec_mm.c
index 4461f65..33466a8 100644 (file)
--- a/drivers/amlogic/media/common/codec_mm/codec_mm.c
+++ b/drivers/amlogic/media/common/codec_mm/codec_mm.c
@@ -329,14 +329,11 @@ u8 *codec_mm_vmap(ulong addr, u32 size)
        struct page **pages = NULL;
        u32 i, npages, offset = 0;
        ulong phys, page_start;
-       pgprot_t pgprot;
+       pgprot_t pgprot = PAGE_KERNEL;
 
        if (!PageHighMem(phys_to_page(addr)))
                return phys_to_virt(addr);
 
-       /*No cache*/
-       pgprot = pgprot_noncached(PAGE_KERNEL);
-
        offset = offset_in_page(addr);
        page_start = addr - offset;
        npages = DIV_ROUND_UP(size + offset, PAGE_SIZE);
@@ -874,7 +871,8 @@ void codec_mm_dma_flush(void *vaddr,
                        phy_addr = page_to_phys(vmalloc_to_page(vaddr))
                                + offset_in_page(vaddr);
                if (phy_addr && PageHighMem(phys_to_page(phy_addr)))
-                       flush_cache_vmap(phy_addr, phy_addr + size);
+                       dma_sync_single_for_device(mgt->dev,
+                                       phy_addr, size, dir);
                return;
        }