drm/rockchip: rga: replace primitive api with dma sync api

Since rga is a dma-coherent device, we have to use drm bus
 device to call sync api.

Change-Id: Ia12062293fabba083c8ab9c4f7457e3167807bb9
Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_rga.c b/drivers/gpu/drm/rockchip/rockchip_drm_rga.c
index 29c4e9da5a34afac9a00888a461284b4a1e433fb..95da17bbb983bc688f9d6fc61712d40f636f29f5 100644 (file)
--- a/drivers/gpu/drm/rockchip/rockchip_drm_rga.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_rga.c
@@ -51,16 +51,6 @@ static void __user *rga_compat_ptr(u64 value)
 #endif
 }
 
-static void rga_dma_flush_range(void *ptr, int size)
-{
-#ifdef CONFIG_ARM
-       dmac_flush_range(ptr, ptr + size);
-       outer_flush_range(virt_to_phys(ptr), virt_to_phys(ptr + size));
-#elif defined CONFIG_ARM64
-       __dma_flush_range(ptr, ptr + size);
-#endif
-}
-
 static inline void rga_write(struct rockchip_rga *rga, u32 reg, u32 value)
 {
        writel(value, rga->regs + reg);
@@ -196,7 +186,9 @@ static int rga_alloc_dma_buf_for_cmdlist(struct rga_runqueue_node *runqueue)
                dest[reg >> 2] = mmu_ctrl;
        }
 
-       rga_dma_flush_range(cmdlist_pool_virt, cmdlist_cnt * RGA_CMDLIST_SIZE);
+       dma_sync_single_for_device(runqueue->drm_dev->dev,
+                                  virt_to_phys(cmdlist_pool_virt),
+                                  PAGE_SIZE, DMA_TO_DEVICE);
 
        runqueue->cmdlist_dma_attrs = cmdlist_dma_attrs;
        runqueue->cmdlist_pool_virt = cmdlist_pool_virt;
@@ -298,7 +290,8 @@ rga_gem_buf_to_pages(struct rockchip_rga *rga, void **mmu_pages, int fd)
                mapped_size += len;
        }
 
-       rga_dma_flush_range(pages, 32 * 1024);
+       dma_sync_single_for_device(rga->drm_dev->dev, virt_to_phys(pages),
+                                  8 * PAGE_SIZE, DMA_TO_DEVICE);
 
        *mmu_pages = pages;
 
@@ -657,6 +650,7 @@ int rockchip_rga_exec_ioctl(struct drm_device *drm_dev, void *data,
                return -ENOMEM;
        }
 
+       runqueue->drm_dev = drm_dev;
        runqueue->dev = rga->dev;
 
        init_completion(&runqueue->complete);
@@ -696,6 +690,10 @@ static int rockchip_rga_open(struct drm_device *drm_dev, struct device *dev,
 {
        struct rockchip_drm_file_private *file_priv = file->driver_priv;
        struct rockchip_drm_rga_private *rga_priv;
+       struct rockchip_rga *rga;
+
+       rga = dev_get_drvdata(dev);
+       rga->drm_dev = drm_dev;
 
        rga_priv = kzalloc(sizeof(*rga_priv), GFP_KERNEL);
        if (!rga_priv)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_rga.h b/drivers/gpu/drm/rockchip/rockchip_drm_rga.h
index 67f86be982313543a181f50da1b6f3ae60a3a002..f88ff990f44b6cb51afa88dfe7c0b21f6a8a31df 100644 (file)
--- a/drivers/gpu/drm/rockchip/rockchip_drm_rga.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_rga.h
@@ -26,6 +26,7 @@ struct rga_cmdlist_node {
 struct rga_runqueue_node {
        struct list_head        list;
 
+       struct drm_device       *drm_dev;
        struct device           *dev;
        pid_t                   pid;
        struct drm_file         *file;