From: ira.weiny@intel.com
To: Andrew Morton <akpm@linux-foundation.org>
Cc: "Ira Weiny" <ira.weiny@intel.com>,
"Patrik Jakobsson" <patrik.r.jakobsson@gmail.com>,
"Jani Nikula" <jani.nikula@linux.intel.com>,
"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Dave Hansen" <dave.hansen@intel.com>,
"Matthew Wilcox" <willy@infradead.org>,
"Christoph Hellwig" <hch@infradead.org>,
"Dan Williams" <dan.j.williams@intel.com>,
"Al Viro" <viro@zeniv.linux.org.uk>,
"Eric Biggers" <ebiggers@kernel.org>,
"Luis Chamberlain" <mcgrof@kernel.org>,
"David Howells" <dhowells@redhat.com>, "Chris Mason" <clm@fb.com>,
"Josef Bacik" <josef@toxicpanda.com>,
"David Sterba" <dsterba@suse.com>,
"Steve French" <sfrench@samba.org>,
"Jaegeuk Kim" <jaegeuk@kernel.org>,
"Chao Yu" <yuchao0@huawei.com>,
"Nicolas Pitre" <nico@fluxnic.net>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Brian King" <brking@us.ibm.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Jérôme Glisse" <jglisse@redhat.com>,
"Kirti Wankhede" <kwankhede@nvidia.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: [PATCH 03/17] drivers/gpu: Convert to mem*_page()
Date: Mon, 23 Nov 2020 22:07:41 -0800 [thread overview]
Message-ID: <20201124060755.1405602-4-ira.weiny@intel.com> (raw)
In-Reply-To: <20201124060755.1405602-1-ira.weiny@intel.com>
From: Ira Weiny <ira.weiny@intel.com>
The pattern of kmap/mem*/kunmap is repeated. Use the new mem*_page()
calls instead.
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
drivers/gpu/drm/gma500/gma_display.c | 7 +++----
drivers/gpu/drm/gma500/mmu.c | 4 ++--
drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 6 ++----
drivers/gpu/drm/i915/gt/intel_gtt.c | 9 ++-------
drivers/gpu/drm/i915/gt/shmem_utils.c | 8 +++-----
5 files changed, 12 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c
index 3df6d6e850f5..f81114594211 100644
--- a/drivers/gpu/drm/gma500/gma_display.c
+++ b/drivers/gpu/drm/gma500/gma_display.c
@@ -9,6 +9,7 @@
#include <linux/delay.h>
#include <linux/highmem.h>
+#include <linux/pagemap.h>
#include <drm/drm_crtc.h>
#include <drm/drm_fourcc.h>
@@ -334,7 +335,7 @@ int gma_crtc_cursor_set(struct drm_crtc *crtc,
struct gtt_range *gt;
struct gtt_range *cursor_gt = gma_crtc->cursor_gt;
struct drm_gem_object *obj;
- void *tmp_dst, *tmp_src;
+ void *tmp_dst;
int ret = 0, i, cursor_pages;
/* If we didn't get a handle then turn the cursor off */
@@ -400,9 +401,7 @@ int gma_crtc_cursor_set(struct drm_crtc *crtc,
/* Copy the cursor to cursor mem */
tmp_dst = dev_priv->vram_addr + cursor_gt->offset;
for (i = 0; i < cursor_pages; i++) {
- tmp_src = kmap(gt->pages[i]);
- memcpy(tmp_dst, tmp_src, PAGE_SIZE);
- kunmap(gt->pages[i]);
+ memcpy_from_page(tmp_dst, gt->pages[i], 0, PAGE_SIZE);
tmp_dst += PAGE_SIZE;
}
diff --git a/drivers/gpu/drm/gma500/mmu.c b/drivers/gpu/drm/gma500/mmu.c
index 505044c9a673..8a0856c7f439 100644
--- a/drivers/gpu/drm/gma500/mmu.c
+++ b/drivers/gpu/drm/gma500/mmu.c
@@ -5,6 +5,7 @@
**************************************************************************/
#include <linux/highmem.h>
+#include <linux/pagemap.h>
#include "mmu.h"
#include "psb_drv.h"
@@ -204,8 +205,7 @@ struct psb_mmu_pd *psb_mmu_alloc_pd(struct psb_mmu_driver *driver,
kunmap(pd->p);
- clear_page(kmap(pd->dummy_page));
- kunmap(pd->dummy_page);
+ memzero_page(pd->dummy_page, 0, PAGE_SIZE);
pd->tables = vmalloc_user(sizeof(struct psb_mmu_pt *) * 1024);
if (!pd->tables)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
index 75e8b71c18b9..8a25e08edd18 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_shmem.c
@@ -558,7 +558,7 @@ i915_gem_object_create_shmem_from_data(struct drm_i915_private *dev_priv,
do {
unsigned int len = min_t(typeof(size), size, PAGE_SIZE);
struct page *page;
- void *pgdata, *vaddr;
+ void *pgdata;
err = pagecache_write_begin(file, file->f_mapping,
offset, len, 0,
@@ -566,9 +566,7 @@ i915_gem_object_create_shmem_from_data(struct drm_i915_private *dev_priv,
if (err < 0)
goto fail;
- vaddr = kmap(page);
- memcpy(vaddr, data, len);
- kunmap(page);
+ memcpy_to_page(page, 0, data, len);
err = pagecache_write_end(file, file->f_mapping,
offset, len, len,
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c
index 3f1114b58b01..f3d7c601d362 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.c
@@ -153,13 +153,8 @@ static void poison_scratch_page(struct drm_i915_gem_object *scratch)
if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM))
val = POISON_FREE;
- for_each_sgt_page(page, sgt, scratch->mm.pages) {
- void *vaddr;
-
- vaddr = kmap(page);
- memset(vaddr, val, PAGE_SIZE);
- kunmap(page);
- }
+ for_each_sgt_page(page, sgt, scratch->mm.pages)
+ memset_page(page, val, 0, PAGE_SIZE);
}
int setup_scratch_page(struct i915_address_space *vm)
diff --git a/drivers/gpu/drm/i915/gt/shmem_utils.c b/drivers/gpu/drm/i915/gt/shmem_utils.c
index f011ea42487e..2d5f1f2e803d 100644
--- a/drivers/gpu/drm/i915/gt/shmem_utils.c
+++ b/drivers/gpu/drm/i915/gt/shmem_utils.c
@@ -95,19 +95,17 @@ static int __shmem_rw(struct file *file, loff_t off,
unsigned int this =
min_t(size_t, PAGE_SIZE - offset_in_page(off), len);
struct page *page;
- void *vaddr;
page = shmem_read_mapping_page_gfp(file->f_mapping, pfn,
GFP_KERNEL);
if (IS_ERR(page))
return PTR_ERR(page);
- vaddr = kmap(page);
if (write)
- memcpy(vaddr + offset_in_page(off), ptr, this);
+ memcpy_to_page(page, offset_in_page(off), ptr, this);
else
- memcpy(ptr, vaddr + offset_in_page(off), this);
- kunmap(page);
+ memcpy_from_page(ptr, page, offset_in_page(off), this);
+
put_page(page);
len -= this;
--
2.28.0.rc0.12.gb6a658bd00c9
next prev parent reply other threads:[~2020-11-24 6:08 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-24 6:07 [PATCH 00/17] kmap: Create mem*_page interfaces ira.weiny
2020-11-24 6:07 ` [PATCH 01/17] mm/highmem: Lift memcpy_[to|from]_page and memset_page to core ira.weiny
2020-11-24 14:19 ` Matthew Wilcox
2020-11-24 19:21 ` Ira Weiny
2020-11-24 20:20 ` Matthew Wilcox
[not found] ` <160648238432.10416.12405581766428273347@jlahtine-mobl.ger.corp.intel.com>
2020-11-27 13:20 ` Matthew Wilcox
[not found] ` <160672815223.3453.2374529656870007787@jlahtine-mobl.ger.corp.intel.com>
2020-12-03 18:25 ` Ira Weiny
2020-11-24 6:07 ` [PATCH 02/17] drivers/firmware_loader: Use new memcpy_[to|from]_page() ira.weiny
2020-11-24 6:07 ` ira.weiny [this message]
[not found] ` <160648211578.10416.3269409785516897908@jlahtine-mobl.ger.corp.intel.com>
2020-12-04 16:05 ` [PATCH 03/17] drivers/gpu: Convert to mem*_page() Ira Weiny
2020-12-04 22:33 ` Thomas Gleixner
2020-12-07 6:46 ` Ira Weiny
2020-12-07 16:19 ` Thomas Gleixner
2020-11-24 6:07 ` [PATCH 04/17] fs/afs: Convert to memzero_page() ira.weiny
2020-11-24 6:07 ` [PATCH 05/17] fs/btrfs: " ira.weiny
2020-11-24 14:12 ` David Sterba
2020-11-24 19:25 ` Ira Weiny
2020-11-24 6:07 ` [PATCH 06/17] fs/hfs: Convert to mem*_page() interface ira.weiny
2020-11-24 6:07 ` [PATCH 07/17] fs/cifs: Convert to memcpy_page() ira.weiny
2020-11-24 6:07 ` [PATCH 08/17] fs/hfsplus: Convert to mem*_page() ira.weiny
2020-11-24 6:07 ` [PATCH 09/17] fs/f2fs: Remove f2fs_copy_page() ira.weiny
2020-11-25 3:27 ` Chao Yu
2020-11-24 6:07 ` [PATCH 10/17] fs/freevxfs: Use memcpy_to_page() ira.weiny
2020-11-24 6:07 ` [PATCH 11/17] fs/reiserfs: Use memcpy_from_page() ira.weiny
2020-11-24 6:07 ` [PATCH 12/17] fs/cramfs: " ira.weiny
2020-11-24 15:20 ` Nicolas Pitre
2020-11-24 6:07 ` [PATCH 13/17] drivers/target: Convert to mem*_page() ira.weiny
2020-11-24 6:07 ` [PATCH 14/17] drivers/scsi: Use memcpy_to_page() ira.weiny
2020-11-24 6:07 ` [PATCH 15/17] drivers/staging: Use memcpy_to/from_page() ira.weiny
2020-11-24 6:07 ` [PATCH 16/17] lib: Use mempcy_to/from_page() ira.weiny
2020-11-24 6:07 ` [PATCH 17/17] samples: Use memcpy_to/from_page() ira.weiny
2020-12-04 10:18 ` [PATCH 04/17] fs/afs: Convert to memzero_page() David Howells
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=20201124060755.1405602-4-ira.weiny@intel.com \
--to=ira.weiny@intel.com \
--cc=akpm@linux-foundation.org \
--cc=ast@kernel.org \
--cc=brking@us.ibm.com \
--cc=clm@fb.com \
--cc=dan.j.williams@intel.com \
--cc=daniel@iogearbox.net \
--cc=dave.hansen@intel.com \
--cc=dhowells@redhat.com \
--cc=dsterba@suse.com \
--cc=ebiggers@kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=hch@infradead.org \
--cc=jaegeuk@kernel.org \
--cc=jani.nikula@linux.intel.com \
--cc=jglisse@redhat.com \
--cc=joonas.lahtinen@linux.intel.com \
--cc=josef@toxicpanda.com \
--cc=kwankhede@nvidia.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=martin.petersen@oracle.com \
--cc=mcgrof@kernel.org \
--cc=nico@fluxnic.net \
--cc=patrik.r.jakobsson@gmail.com \
--cc=rodrigo.vivi@intel.com \
--cc=sfrench@samba.org \
--cc=tglx@linutronix.de \
--cc=viro@zeniv.linux.org.uk \
--cc=willy@infradead.org \
--cc=yuchao0@huawei.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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).