diff options
Diffstat (limited to 'meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf')
| -rw-r--r-- | meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf/0001-mmngr_drv-mmngrbuf-Take-care-of-any-migration-of-sca.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf/0001-mmngr_drv-mmngrbuf-Take-care-of-any-migration-of-sca.patch b/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf/0001-mmngr_drv-mmngrbuf-Take-care-of-any-migration-of-sca.patch new file mode 100644 index 0000000..7e5ca0a --- /dev/null +++ b/meta-rcar-gen3/recipes-kernel/kernel-module-mmngr/kernel-module-mmngrbuf/0001-mmngr_drv-mmngrbuf-Take-care-of-any-migration-of-sca.patch @@ -0,0 +1,35 @@ +From 43d2cc7496340eea3f96cb3c3cf66139e0878f3c Mon Sep 17 00:00:00 2001 +From: Hai Nguyen Pham <hai.pham.ud@renesas.com> +Date: Tue, 26 Mar 2019 15:56:30 +0700 +Subject: [PATCH] mmngr_drv: mmngrbuf: Take care of any migration of + scatterlist + +MMNGRBUF should take care of any migration of scatterlist for +all (shared) users of the DMA buffer. Although we only care about +DMA addresses at the moment, this will benefit the DRM system that +uses the buffer allocated by MMNGR directly. + +Initialize the scatterlist entry so that it can be happily traversed. + +Signed-off-by: Hai Nguyen Pham <hai.pham.ud@renesas.com> +--- + mmngr_drv/mmngrbuf/mmngrbuf-module/files/mmngrbuf/drv/mmngr_buf_drv.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/mmngr_drv/mmngrbuf/mmngrbuf-module/files/mmngrbuf/drv/mmngr_buf_drv.c b/mmngr_drv/mmngrbuf/mmngrbuf-module/files/mmngrbuf/drv/mmngr_buf_drv.c +index fe3db08..d9189e9 100644 +--- a/mmngr_drv/mmngrbuf/mmngrbuf-module/files/mmngrbuf/drv/mmngr_buf_drv.c ++++ b/mmngr_drv/mmngrbuf/mmngrbuf-module/files/mmngrbuf/drv/mmngr_buf_drv.c +@@ -256,6 +256,9 @@ static struct sg_table *dmabuf_map_dma_buf(struct dma_buf_attachment *attach, + return NULL; + } + ++ sg_set_page(sgt->sgl, pfn_to_page(PFN_DOWN(priv->hard_addr)), ++ priv->size, offset_in_page(priv->hard_addr)); ++ + sg_dma_address(sgt->sgl) = priv->hard_addr; + sg_dma_len(sgt->sgl) = priv->size; + +-- +2.7.4 + |