dri-devel Archive on lore.kernel.org
 help / color / Atom feed
From: "Ruhl, Michael J" <michael.j.ruhl@intel.com>
To: Marek Szyprowski <m.szyprowski@samsung.com>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	"iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>,
	"linaro-mm-sig@lists.linaro.org" <linaro-mm-sig@lists.linaro.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Pawel Osciak <pawel@osciak.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	David Airlie <airlied@linux.ie>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Christoph Hellwig <hch@lst.de>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-media@vger.kernel.org" <linux-media@vger.kernel.org>
Subject: RE: [PATCH v4 38/38] videobuf2: use sgtable-based scatterlist wrappers
Date: Tue, 12 May 2020 17:52:39 +0000
Message-ID: <14063C7AD467DE4B82DEDB5C278E8663010E210FAC@FMSMSX108.amr.corp.intel.com> (raw)
In-Reply-To: <20200512090058.14910-38-m.szyprowski@samsung.com>



>-----Original Message-----
>From: dri-devel <dri-devel-bounces@lists.freedesktop.org> On Behalf Of
>Marek Szyprowski
>Sent: Tuesday, May 12, 2020 5:01 AM
>To: dri-devel@lists.freedesktop.org; iommu@lists.linux-foundation.org;
>linaro-mm-sig@lists.linaro.org; linux-kernel@vger.kernel.org
>Cc: Pawel Osciak <pawel@osciak.com>; Bartlomiej Zolnierkiewicz
><b.zolnierkie@samsung.com>; David Airlie <airlied@linux.ie>; linux-
>media@vger.kernel.org; Hans Verkuil <hverkuil-cisco@xs4all.nl>; Mauro
>Carvalho Chehab <mchehab@kernel.org>; Robin Murphy
><robin.murphy@arm.com>; Christoph Hellwig <hch@lst.de>; linux-arm-
>kernel@lists.infradead.org; Marek Szyprowski
><m.szyprowski@samsung.com>
>Subject: [PATCH v4 38/38] videobuf2: use sgtable-based scatterlist wrappers
>
>Use recently introduced common wrappers operating directly on the struct
>sg_table objects and scatterlist page iterators to make the code a bit
>more compact, robust, easier to follow and copy/paste safe.
>
>No functional change, because the code already properly did all the
>scaterlist related calls.
>
>Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
>---
>For more information, see '[PATCH v4 00/38] DRM: fix struct sg_table nents
>vs. orig_nents misuse' thread:
>https://lore.kernel.org/dri-devel/20200512085710.14688-1-
>m.szyprowski@samsung.com/T/
>---
> .../media/common/videobuf2/videobuf2-dma-contig.c  | 41 ++++++++++----
>--------
> drivers/media/common/videobuf2/videobuf2-dma-sg.c  | 32 +++++++--------
>--
> drivers/media/common/videobuf2/videobuf2-vmalloc.c | 12 +++----
> 3 files changed, 34 insertions(+), 51 deletions(-)
>
>diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c
>b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
>index d3a3ee5..bf31a9d 100644
>--- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c
>+++ b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
>@@ -48,16 +48,15 @@ struct vb2_dc_buf {
>
> static unsigned long vb2_dc_get_contiguous_size(struct sg_table *sgt)
> {
>-	struct scatterlist *s;
> 	dma_addr_t expected = sg_dma_address(sgt->sgl);
>-	unsigned int i;
>+	struct sg_dma_page_iter dma_iter;
> 	unsigned long size = 0;
>
>-	for_each_sg(sgt->sgl, s, sgt->nents, i) {
>-		if (sg_dma_address(s) != expected)
>+	for_each_sgtable_dma_page(sgt, &dma_iter, 0) {
>+		if (sg_page_iter_dma_address(&dma_iter) != expected)
> 			break;
>-		expected = sg_dma_address(s) + sg_dma_len(s);
>-		size += sg_dma_len(s);
>+		expected += PAGE_SIZE;
>+		size += PAGE_SIZE;

This code in drm_prime_t_contiguous_size and here.  I seem to remember seeing
the same pattern in other drivers.

Would it worthwhile to make this a helper as well?

Also, isn't the sg_dma_len() the actual length of the chunk we are looking at?

If its I not PAGE_SIZE (ie. dma chunk is 4 * PAGE_SIZE?), does your loop/calculation still work?

Thanks,

Mike

> 	}
> 	return size;
> }
>@@ -99,8 +98,7 @@ static void vb2_dc_prepare(void *buf_priv)
> 	if (!sgt || buf->db_attach)
> 		return;
>
>-	dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->orig_nents,
>-			       buf->dma_dir);
>+	dma_sync_sgtable_for_device(buf->dev, sgt, buf->dma_dir);
> }
>
> static void vb2_dc_finish(void *buf_priv)
>@@ -112,7 +110,7 @@ static void vb2_dc_finish(void *buf_priv)
> 	if (!sgt || buf->db_attach)
> 		return;
>
>-	dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->orig_nents, buf-
>>dma_dir);
>+	dma_sync_sgtable_for_cpu(buf->dev, sgt, buf->dma_dir);
> }
>
> /*********************************************/
>@@ -273,8 +271,8 @@ static void vb2_dc_dmabuf_ops_detach(struct
>dma_buf *dbuf,
> 		 * memory locations do not require any explicit cache
> 		 * maintenance prior or after being used by the device.
> 		 */
>-		dma_unmap_sg_attrs(db_attach->dev, sgt->sgl, sgt-
>>orig_nents,
>-				   attach->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
>+		dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir,
>+				  DMA_ATTR_SKIP_CPU_SYNC);
> 	sg_free_table(sgt);
> 	kfree(attach);
> 	db_attach->priv = NULL;
>@@ -299,8 +297,8 @@ static struct sg_table *vb2_dc_dmabuf_ops_map(
>
> 	/* release any previous cache */
> 	if (attach->dma_dir != DMA_NONE) {
>-		dma_unmap_sg_attrs(db_attach->dev, sgt->sgl, sgt-
>>orig_nents,
>-				   attach->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
>+		dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir,
>+				  DMA_ATTR_SKIP_CPU_SYNC);
> 		attach->dma_dir = DMA_NONE;
> 	}
>
>@@ -308,9 +306,8 @@ static struct sg_table *vb2_dc_dmabuf_ops_map(
> 	 * mapping to the client with new direction, no cache sync
> 	 * required see comment in vb2_dc_dmabuf_ops_detach()
> 	 */
>-	sgt->nents = dma_map_sg_attrs(db_attach->dev, sgt->sgl, sgt-
>>orig_nents,
>-				      dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
>-	if (!sgt->nents) {
>+	if (dma_map_sgtable(db_attach->dev, sgt, dma_dir,
>+			    DMA_ATTR_SKIP_CPU_SYNC)) {
> 		pr_err("failed to map scatterlist\n");
> 		mutex_unlock(lock);
> 		return ERR_PTR(-EIO);
>@@ -423,8 +420,8 @@ static void vb2_dc_put_userptr(void *buf_priv)
> 		 * No need to sync to CPU, it's already synced to the CPU
> 		 * since the finish() memop will have been called before this.
> 		 */
>-		dma_unmap_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
>-				   buf->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
>+		dma_unmap_sgtable(buf->dev, sgt, buf->dma_dir,
>+				  DMA_ATTR_SKIP_CPU_SYNC);
> 		pages = frame_vector_pages(buf->vec);
> 		/* sgt should exist only if vector contains pages... */
> 		BUG_ON(IS_ERR(pages));
>@@ -521,9 +518,8 @@ static void *vb2_dc_get_userptr(struct device *dev,
>unsigned long vaddr,
> 	 * No need to sync to the device, this will happen later when the
> 	 * prepare() memop is called.
> 	 */
>-	sgt->nents = dma_map_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
>-				      buf->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
>-	if (sgt->nents <= 0) {
>+	if (dma_map_sgtable(buf->dev, sgt, buf->dma_dir,
>+			    DMA_ATTR_SKIP_CPU_SYNC)) {
> 		pr_err("failed to map scatterlist\n");
> 		ret = -EIO;
> 		goto fail_sgt_init;
>@@ -545,8 +541,7 @@ static void *vb2_dc_get_userptr(struct device *dev,
>unsigned long vaddr,
> 	return buf;
>
> fail_map_sg:
>-	dma_unmap_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
>-			   buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
>+	dma_unmap_sgtable(buf->dev, sgt, buf->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
>
> fail_sgt_init:
> 	sg_free_table(sgt);
>diff --git a/drivers/media/common/videobuf2/videobuf2-dma-sg.c
>b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
>index 92072a0..6ddf953 100644
>--- a/drivers/media/common/videobuf2/videobuf2-dma-sg.c
>+++ b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
>@@ -142,9 +142,8 @@ static void *vb2_dma_sg_alloc(struct device *dev,
>unsigned long dma_attrs,
> 	 * No need to sync to the device, this will happen later when the
> 	 * prepare() memop is called.
> 	 */
>-	sgt->nents = dma_map_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
>-				      buf->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
>-	if (!sgt->nents)
>+	if (dma_map_sgtable(buf->dev, sgt, buf->dma_dir,
>+			    DMA_ATTR_SKIP_CPU_SYNC)) {
> 		goto fail_map;
>
> 	buf->handler.refcount = &buf->refcount;
>@@ -180,8 +179,8 @@ static void vb2_dma_sg_put(void *buf_priv)
> 	if (refcount_dec_and_test(&buf->refcount)) {
> 		dprintk(1, "%s: Freeing buffer of %d pages\n", __func__,
> 			buf->num_pages);
>-		dma_unmap_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
>-				   buf->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
>+		dma_unmap_sgtable(buf->dev, sgt, buf->dma_dir,
>+				  DMA_ATTR_SKIP_CPU_SYNC);
> 		if (buf->vaddr)
> 			vm_unmap_ram(buf->vaddr, buf->num_pages);
> 		sg_free_table(buf->dma_sgt);
>@@ -202,8 +201,7 @@ static void vb2_dma_sg_prepare(void *buf_priv)
> 	if (buf->db_attach)
> 		return;
>
>-	dma_sync_sg_for_device(buf->dev, sgt->sgl, sgt->orig_nents,
>-			       buf->dma_dir);
>+	dma_sync_sgtable_for_device(buf->dev, sgt, buf->dma_dir);
> }
>
> static void vb2_dma_sg_finish(void *buf_priv)
>@@ -215,7 +213,7 @@ static void vb2_dma_sg_finish(void *buf_priv)
> 	if (buf->db_attach)
> 		return;
>
>-	dma_sync_sg_for_cpu(buf->dev, sgt->sgl, sgt->orig_nents, buf-
>>dma_dir);
>+	dma_sync_sgtable_for_cpu(buf->dev, sgt, buf->dma_dir);
> }
>
> static void *vb2_dma_sg_get_userptr(struct device *dev, unsigned long
>vaddr,
>@@ -258,9 +256,8 @@ static void *vb2_dma_sg_get_userptr(struct device
>*dev, unsigned long vaddr,
> 	 * No need to sync to the device, this will happen later when the
> 	 * prepare() memop is called.
> 	 */
>-	sgt->nents = dma_map_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
>-				      buf->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
>-	if (!sgt->nents)
>+	if (dma_map_sgtable(buf->dev, sgt, buf->dma_dir,
>+			    DMA_ATTR_SKIP_CPU_SYNC)) {
> 		goto userptr_fail_map;
>
> 	return buf;
>@@ -286,8 +283,7 @@ static void vb2_dma_sg_put_userptr(void *buf_priv)
>
> 	dprintk(1, "%s: Releasing userspace buffer of %d pages\n",
> 	       __func__, buf->num_pages);
>-	dma_unmap_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents, buf-
>>dma_dir,
>-			   DMA_ATTR_SKIP_CPU_SYNC);
>+	dma_unmap_sgtable(buf->dev, sgt, buf->dma_dir,
>DMA_ATTR_SKIP_CPU_SYNC);
> 	if (buf->vaddr)
> 		vm_unmap_ram(buf->vaddr, buf->num_pages);
> 	sg_free_table(buf->dma_sgt);
>@@ -410,8 +406,7 @@ static void vb2_dma_sg_dmabuf_ops_detach(struct
>dma_buf *dbuf,
>
> 	/* release the scatterlist cache */
> 	if (attach->dma_dir != DMA_NONE)
>-		dma_unmap_sg(db_attach->dev, sgt->sgl, sgt->orig_nents,
>-			attach->dma_dir);
>+		dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir);
> 	sg_free_table(sgt);
> 	kfree(attach);
> 	db_attach->priv = NULL;
>@@ -436,15 +431,12 @@ static struct sg_table
>*vb2_dma_sg_dmabuf_ops_map(
>
> 	/* release any previous cache */
> 	if (attach->dma_dir != DMA_NONE) {
>-		dma_unmap_sg(db_attach->dev, sgt->sgl, sgt->orig_nents,
>-			attach->dma_dir);
>+		dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir);
> 		attach->dma_dir = DMA_NONE;
> 	}
>
> 	/* mapping to the client with new direction */
>-	sgt->nents = dma_map_sg(db_attach->dev, sgt->sgl, sgt->orig_nents,
>-				dma_dir);
>-	if (!sgt->nents) {
>+	if (dma_map_sgtable(db_attach->dev, sgt, dma_dir, 0)) {
> 		pr_err("failed to map scatterlist\n");
> 		mutex_unlock(lock);
> 		return ERR_PTR(-EIO);
>diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c
>b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
>index c66fda4..bf5ac63 100644
>--- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c
>+++ b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
>@@ -229,7 +229,7 @@ static int vb2_vmalloc_dmabuf_ops_attach(struct
>dma_buf *dbuf,
> 		kfree(attach);
> 		return ret;
> 	}
>-	for_each_sg(sgt->sgl, sg, sgt->nents, i) {
>+	for_each_sgtable_sg(sgt, sg, i) {
> 		struct page *page = vmalloc_to_page(vaddr);
>
> 		if (!page) {
>@@ -259,8 +259,7 @@ static void vb2_vmalloc_dmabuf_ops_detach(struct
>dma_buf *dbuf,
>
> 	/* release the scatterlist cache */
> 	if (attach->dma_dir != DMA_NONE)
>-		dma_unmap_sg(db_attach->dev, sgt->sgl, sgt->orig_nents,
>-			attach->dma_dir);
>+		dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir,
>0);
> 	sg_free_table(sgt);
> 	kfree(attach);
> 	db_attach->priv = NULL;
>@@ -285,15 +284,12 @@ static struct sg_table
>*vb2_vmalloc_dmabuf_ops_map(
>
> 	/* release any previous cache */
> 	if (attach->dma_dir != DMA_NONE) {
>-		dma_unmap_sg(db_attach->dev, sgt->sgl, sgt->orig_nents,
>-			attach->dma_dir);
>+		dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir,
>0);
> 		attach->dma_dir = DMA_NONE;
> 	}
>
> 	/* mapping to the client with new direction */
>-	sgt->nents = dma_map_sg(db_attach->dev, sgt->sgl, sgt->orig_nents,
>-				dma_dir);
>-	if (!sgt->nents) {
>+	if (dma_map_sgtable(db_attach->dev, sgt, dma_dir, 0)) {
> 		pr_err("failed to map scatterlist\n");
> 		mutex_unlock(lock);
> 		return ERR_PTR(-EIO);
>--
>1.9.1
>
>_______________________________________________
>dri-devel mailing list
>dri-devel@lists.freedesktop.org
>https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  reply index

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20200512085722eucas1p2fbaab30e49c9ddadc64b27db856e5921@eucas1p2.samsung.com>
2020-05-12  8:57 ` [PATCH v4 00/38] DRM: fix struct sg_table nents vs. orig_nents misuse Marek Szyprowski
     [not found]   ` <CGME20200512090107eucas1p13a38ce5ce4c15cd0033acaea7b26c9b0@eucas1p1.samsung.com>
2020-05-12  9:00     ` [PATCH v4 01/38] dma-mapping: add generic helpers for mapping sgtable objects Marek Szyprowski
     [not found]       ` <CGME20200512090108eucas1p10a3571be3f60265daea3b3f1469b5e82@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 02/38] scatterlist: add generic wrappers for iterating over " Marek Szyprowski
2020-05-13 13:24           ` Robin Murphy
     [not found]       ` <CGME20200512090108eucas1p2168167ab5e1de09df0d5def83f64dbfe@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 03/38] iommu: add generic helper for mapping " Marek Szyprowski
2020-05-13  9:03           ` Joerg Roedel
2020-05-13 13:27           ` Robin Murphy
     [not found]       ` <CGME20200512090109eucas1p285ca10dceb29f43aae1c40814e2dec8d@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 04/38] drm: prime: add common helper to check scatterlist contiguity Marek Szyprowski
     [not found]       ` <CGME20200512090110eucas1p1fdf69509f401e425c45e958430a99b65@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 05/38] drm: prime: use sgtable iterators in drm_prime_sg_to_page_addr_arrays() Marek Szyprowski
     [not found]       ` <CGME20200512090110eucas1p1b8de7671df480c071718c96f8ebdbc42@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 06/38] drm: core: fix common struct sg_table related issues Marek Szyprowski
     [not found]       ` <CGME20200512090111eucas1p2fd703addaa7975c16a1ea2d7807cc6a6@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 07/38] drm: amdgpu: " Marek Szyprowski
     [not found]       ` <CGME20200512090111eucas1p29897737c262b467437d0775204129105@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 08/38] drm: armada: " Marek Szyprowski
     [not found]       ` <CGME20200512090112eucas1p225de9f54f7fd54346043fc8c31e7ea2d@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 09/38] drm: etnaviv: " Marek Szyprowski
     [not found]       ` <CGME20200512090112eucas1p280707473d14730b8d3054fe9b0781a05@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 10/38] drm: exynos: use common helper for a scatterlist contiguity check Marek Szyprowski
     [not found]       ` <CGME20200512090113eucas1p254a8b23dd0ee63411df200f66d193203@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 11/38] drm: exynos: fix common struct sg_table related issues Marek Szyprowski
     [not found]       ` <CGME20200512090114eucas1p1917c16e0312cfb191f327e6dad2f7808@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 12/38] drm: i915: " Marek Szyprowski
     [not found]       ` <CGME20200512090114eucas1p1bc4ab112b490205283e7d2f82a9713ee@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 13/38] drm: lima: " Marek Szyprowski
     [not found]       ` <CGME20200512090115eucas1p25e71b29fa935e53e4c04f9b3789a09fc@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 14/38] drm: mediatek: use common helper for a scatterlist contiguity check Marek Szyprowski
     [not found]       ` <CGME20200512090116eucas1p2089d6eb7aa6bad4d2cbc2875c175873f@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 15/38] drm: mediatek: use common helper for extracting pages array Marek Szyprowski
     [not found]       ` <CGME20200512090116eucas1p24662e01574c0700cfe6d474280bb8df5@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 16/38] drm: msm: fix common struct sg_table related issues Marek Szyprowski
     [not found]       ` <CGME20200512090117eucas1p1acf4ddfe65242d28eee247ab2ca21454@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 17/38] drm: omapdrm: use common helper for extracting pages array Marek Szyprowski
     [not found]       ` <CGME20200512090117eucas1p1179ea62b61b45fae70630e66e434ffb3@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 18/38] drm: omapdrm: fix common struct sg_table related issues Marek Szyprowski
     [not found]       ` <CGME20200512090118eucas1p19ed5cf76c6e1e3f3bcaaefaeff7cf333@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 19/38] drm: panfrost: " Marek Szyprowski
     [not found]       ` <CGME20200512090119eucas1p2c0db485fddf17f15135f8e69e46fc097@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 20/38] drm: radeon: " Marek Szyprowski
     [not found]       ` <CGME20200512090119eucas1p2b3e1a858d8893f8d209d5c19fcbab941@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 21/38] drm: rockchip: use common helper for a scatterlist contiguity check Marek Szyprowski
     [not found]       ` <CGME20200512090120eucas1p28cc382480b2e3298b59fb6bf5ffde80b@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 22/38] drm: rockchip: fix common struct sg_table related issues Marek Szyprowski
     [not found]       ` <CGME20200512090120eucas1p18ae5489153837bbf5b8baa5089234c40@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 23/38] drm: tegra: " Marek Szyprowski
     [not found]       ` <CGME20200512090121eucas1p2f20e300f70ff54da15fe49cc6690f608@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 24/38] drm: v3d: " Marek Szyprowski
     [not found]       ` <CGME20200512090122eucas1p10cc3f42cb0452a8a279fcc8702e50a7a@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 25/38] drm: virtio: " Marek Szyprowski
     [not found]       ` <CGME20200512090122eucas1p155db33deb51b4bbc34c0a012e4a7361d@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 26/38] drm: vmwgfx: " Marek Szyprowski
     [not found]       ` <CGME20200512090123eucas1p268736ef6e202c23e8be77c56873f415f@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 27/38] xen: gntdev: " Marek Szyprowski
     [not found]       ` <CGME20200512090123eucas1p25758ba07ba913e5a3eeca13c7f386fdb@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 28/38] drm: host1x: " Marek Szyprowski
     [not found]       ` <CGME20200512090124eucas1p1f96fac067834c139fe1095a63b4dc2f0@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 29/38] drm: rcar-du: " Marek Szyprowski
     [not found]       ` <CGME20200512090124eucas1p20509113bdbdd1070d8265aa1af80e64a@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 30/38] dmabuf: " Marek Szyprowski
     [not found]       ` <CGME20200512090125eucas1p1f9eae024a33e92bf1468f2af4e5a1b0a@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 31/38] staging: ion: remove dead code Marek Szyprowski
     [not found]       ` <CGME20200512090126eucas1p1ad8d5dfd09fce31d9a18691a76e9fa75@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 32/38] staging: ion: fix common struct sg_table related issues Marek Szyprowski
     [not found]       ` <CGME20200512090127eucas1p19889d83b1c750dcdc869323e8d1946a3@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 33/38] staging: tegra-vde: " Marek Szyprowski
     [not found]       ` <CGME20200512090128eucas1p2cf31bfdca3b096585ba9f2741ef08ce0@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 34/38] misc: fastrpc: " Marek Szyprowski
     [not found]       ` <CGME20200512090128eucas1p11ee8a5e72ca37dc6b3e8a07ea094bab6@eucas1p1.samsung.com>
2020-05-12  9:00         ` [PATCH v4 35/38] rapidio: " Marek Szyprowski
     [not found]       ` <CGME20200512090129eucas1p2e67c8a9adafb202970a59c3412cd887a@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 36/38] samples: vfio-mdev/mbochs: " Marek Szyprowski
     [not found]       ` <CGME20200512090129eucas1p24fa7e83acb8cde494f71ca5694279401@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 37/38] media: pci: fix common ALSA DMA-mapping related codes Marek Szyprowski
     [not found]       ` <CGME20200512090130eucas1p2eb86c5d34be56bbc81032bc0b6927d1e@eucas1p2.samsung.com>
2020-05-12  9:00         ` [PATCH v4 38/38] videobuf2: use sgtable-based scatterlist wrappers Marek Szyprowski
2020-05-12 17:52           ` Ruhl, Michael J [this message]
2020-05-12 20:33             ` Marek Szyprowski
2020-05-13 12:01               ` Ruhl, Michael J
     [not found]       ` <20200512121808.GA20393@lst.de>
2020-05-12 13:00         ` [PATCH v4 01/38] dma-mapping: add generic helpers for mapping sgtable objects Marek Szyprowski
     [not found]           ` <20200512130936.GA24428@lst.de>
2020-05-12 13:19             ` Marek Szyprowski
2020-05-13 13:23       ` Robin Murphy

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=14063C7AD467DE4B82DEDB5C278E8663010E210FAC@FMSMSX108.amr.corp.intel.com \
    --to=michael.j.ruhl@intel.com \
    --cc=airlied@linux.ie \
    --cc=b.zolnierkie@samsung.com \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=hch@lst.de \
    --cc=hverkuil-cisco@xs4all.nl \
    --cc=iommu@lists.linux-foundation.org \
    --cc=linaro-mm-sig@lists.linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-media@vger.kernel.org \
    --cc=m.szyprowski@samsung.com \
    --cc=mchehab@kernel.org \
    --cc=pawel@osciak.com \
    --cc=robin.murphy@arm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

dri-devel Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/dri-devel/0 dri-devel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dri-devel dri-devel/ https://lore.kernel.org/dri-devel \
		dri-devel@lists.freedesktop.org
	public-inbox-index dri-devel

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.freedesktop.lists.dri-devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git