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video/rockchip: rga2: add RGA_CACHE_FLUSH command mode

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Change-Id: I9b54155fa85fa394a7eb816c48c71523786d6867
Signed-off-by: Shixiang Zheng <shixiang.zheng@rock-chips.com>
This commit is contained in:
Shixiang Zheng
2018-12-11 17:07:22 +08:00
committed by Tao Huang
parent 9aa48044f7
commit 46d6a1ae32
2 changed files with 57 additions and 0 deletions
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1
drivers/video/rockchip/rga2/rga2.h
View File

@@ -12,6 +12,7 @@
#define RGA_FLUSH 0x5019
#define RGA_GET_RESULT 0x501a
#define RGA_GET_VERSION 0x501b
#define RGA_CACHE_FLUSH 0x501c
#define RGA2_BLIT_SYNC 0x6017
#define RGA2_BLIT_ASYNC 0x6018

56
drivers/video/rockchip/rga2/rga2_drv.c
View File

@@ -1289,6 +1289,52 @@ static int rga2_convert_dma_buf(struct rga2_req *req)
return 0;
}
#endif
static int rga2_blit_flush_cache(rga2_session *session, struct rga2_req *req)
{
int ret = 0;
struct rga2_reg *reg = kzalloc(sizeof(*reg), GFP_KERNEL);
struct rga2_mmu_buf_t *tbuf = &rga2_mmu_buf;
if (!reg) {
pr_err("%s, [%d] kzalloc error\n", __func__, __LINE__);
ret = -ENOMEM;
goto err_free_reg;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0))
if (rga2_get_dma_buf(req)) {
pr_err("RGA2 : DMA buf copy error\n");
ret = -EFAULT;
goto err_free_reg;
}
#else
if (rga2_convert_dma_buf(req)) {
pr_err("RGA2 : DMA buf copy error\n");
ret = -EFAULT;
goto err_free_reg;
}
#endif
if ((req->mmu_info.src0_mmu_flag & 1) || (req->mmu_info.src1_mmu_flag & 1) ||
(req->mmu_info.dst_mmu_flag & 1) || (req->mmu_info.els_mmu_flag & 1)) {
ret = rga2_set_mmu_info(reg, req);
if (ret < 0) {
pr_err("%s, [%d] set mmu info error\n", __func__, __LINE__);
ret = -EFAULT;
goto err_free_reg;
}
}
if (reg->MMU_len && tbuf) {
if (tbuf->back + reg->MMU_len > 2 * tbuf->size)
tbuf->back = reg->MMU_len + tbuf->size;
else
tbuf->back += reg->MMU_len;
}
err_free_reg:
kfree(reg);
return ret;
}
static int rga2_blit(rga2_session *session, struct rga2_req *req)
{
int ret = -1;
@@ -1574,6 +1620,16 @@ static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
ret = rga2_blit_async(session, &req);
}
break;
case RGA_CACHE_FLUSH:
if (unlikely(copy_from_user(&req_rga, (struct rga_req*)arg, sizeof(struct rga_req))))
{
ERR("copy_from_user failed\n");
ret = -EFAULT;
break;
}
RGA_MSG_2_RGA2_MSG(&req_rga, &req);
ret = rga2_blit_flush_cache(session, &req);
break;
case RGA2_BLIT_SYNC:
if (unlikely(copy_from_user(&req, (struct rga2_req*)arg, sizeof(struct rga2_req))))
{