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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/video/rockchip/rga3/rga_dma_buf.c
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@@ -206,12 +206,11 @@
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 	struct rga_iommu_dma_cookie *cookie = domain->iova_cookie;
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 	struct iova_domain *iovad = &cookie->iovad;
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 	unsigned long shift, iova_len, iova = 0;
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-#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 4, 0))
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-	dma_addr_t limit;
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-#endif
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209
 
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 	shift = iova_shift(iovad);
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 	iova_len = size >> shift;
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+
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+#if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 1, 0))
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 	/*
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 	 * Freeing non-power-of-two-sized allocations back into the IOVA caches
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 	 * will come back to bite us badly, so we have to waste a bit of space
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@@ -220,6 +219,7 @@
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 	 */
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 	if (iova_len < (1 << (IOVA_RANGE_CACHE_MAX_SIZE - 1)))
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 		iova_len = roundup_pow_of_two(iova_len);
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+#endif
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223
 
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 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0))
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 	dma_limit = min_not_zero(dma_limit, dev->bus_dma_limit);
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@@ -231,12 +231,13 @@
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 	if (domain->geometry.force_aperture)
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 		dma_limit = min(dma_limit, (u64)domain->geometry.aperture_end);
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233
 
234
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0))
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-	iova = alloc_iova_fast(iovad, iova_len, dma_limit >> shift, true);
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+#if (LINUX_VERSION_CODE > KERNEL_VERSION(4, 19, 111) && \
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+     LINUX_VERSION_CODE < KERNEL_VERSION(5, 4, 0))
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+	iova = alloc_iova_fast(iovad, iova_len,
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+			       min_t(dma_addr_t, dma_limit >> shift, iovad->end_pfn),
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+			       true);
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 #else
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-	limit = min_t(dma_addr_t, dma_limit >> shift, iovad->end_pfn);
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-
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-	iova = alloc_iova_fast(iovad, iova_len, limit, true);
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+	iova = alloc_iova_fast(iovad, iova_len, dma_limit >> shift, true);
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 #endif
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 	return (dma_addr_t)iova << shift;
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@@ -424,21 +425,21 @@
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 	if (dma_buf != NULL) {
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 		get_dma_buf(dma_buf);
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 	} else {
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-		pr_err("dma_buf is Invalid[%p]\n", dma_buf);
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+		pr_err("dma_buf is invalid[%p]\n", dma_buf);
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 		return -EINVAL;
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 	}
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431
 
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 	attach = dma_buf_attach(dma_buf, rga_dev);
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 	if (IS_ERR(attach)) {
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-		pr_err("Failed to attach dma_buf\n");
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-		ret = -EINVAL;
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+		ret = PTR_ERR(attach);
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+		pr_err("Failed to attach dma_buf, ret[%d]\n", ret);
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 		goto err_get_attach;
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 	}
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 	sgt = dma_buf_map_attachment(attach, dir);
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 	if (IS_ERR(sgt)) {
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-		pr_err("Failed to map src attachment\n");
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-		ret = -EINVAL;
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+		ret = PTR_ERR(sgt);
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+		pr_err("Failed to map attachment, ret[%d]\n", ret);
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 		goto err_get_sgt;
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 	}
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..
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@@ -474,22 +475,22 @@
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 	dma_buf = dma_buf_get(fd);
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 	if (IS_ERR(dma_buf)) {
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-		pr_err("dma_buf_get fail fd[%d]\n", fd);
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-		ret = -EINVAL;
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+		ret = PTR_ERR(dma_buf);
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+		pr_err("Fail to get dma_buf from fd[%d], ret[%d]\n", fd, ret);
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 		return ret;
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 	}
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482
 
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 	attach = dma_buf_attach(dma_buf, rga_dev);
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 	if (IS_ERR(attach)) {
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-		pr_err("Failed to attach dma_buf\n");
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-		ret = -EINVAL;
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+		ret = PTR_ERR(attach);
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+		pr_err("Failed to attach dma_buf, ret[%d]\n", ret);
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 		goto err_get_attach;
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 	}
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 	sgt = dma_buf_map_attachment(attach, dir);
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 	if (IS_ERR(sgt)) {
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-		pr_err("Failed to map src attachment\n");
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-		ret = -EINVAL;
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+		ret = PTR_ERR(sgt);
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+		pr_err("Failed to map attachment, ret[%d]\n", ret);
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 		goto err_get_sgt;
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 	}
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