From: ira.weiny@intel.com
To: David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
Patrik Jakobsson <patrik.r.jakobsson@gmail.com>,
Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>
Cc: Ira Weiny <ira.weiny@intel.com>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org,
linux-arm-msm@vger.kernel.org
Subject: [PATCH V2 2/7] drm/amd: Replace kmap() with kmap_local_page()
Date: Sun, 23 Jan 2022 17:54:04 -0800 [thread overview]
Message-ID: <20220124015409.807587-3-ira.weiny@intel.com> (raw)
In-Reply-To: <20220124015409.807587-1-ira.weiny@intel.com>
From: Ira Weiny <ira.weiny@intel.com>
kmap() is being deprecated. These maps are thread local and can be
replaced with kmap_local_page().
Replace kmap() with kmap_local_page()
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 5c3f24069f2a..54973824f8f9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -2272,9 +2272,9 @@ static ssize_t amdgpu_iomem_read(struct file *f, char __user *buf,
if (p->mapping != adev->mman.bdev.dev_mapping)
return -EPERM;
- ptr = kmap(p);
+ ptr = kmap_local_page(p);
r = copy_to_user(buf, ptr + off, bytes);
- kunmap(p);
+ kunmap_local(ptr);
if (r)
return -EFAULT;
@@ -2323,9 +2323,9 @@ static ssize_t amdgpu_iomem_write(struct file *f, const char __user *buf,
if (p->mapping != adev->mman.bdev.dev_mapping)
return -EPERM;
- ptr = kmap(p);
+ ptr = kmap_local_page(p);
r = copy_from_user(ptr + off, buf, bytes);
- kunmap(p);
+ kunmap_local(ptr);
if (r)
return -EFAULT;
--
2.31.1
next prev parent reply other threads:[~2022-01-24 1:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-24 1:54 [PATCH V2 0/7] DRM kmap() fixes and kmap_local_page() conversions ira.weiny
2022-01-24 1:54 ` [PATCH V2 1/7] drm/i915: Replace kmap() with kmap_local_page() ira.weiny
2022-01-24 1:54 ` ira.weiny [this message]
2022-01-24 1:54 ` [PATCH V2 3/7] drm/gma: Remove calls to kmap() ira.weiny
2022-01-24 16:03 ` Daniel Vetter
2022-01-24 1:54 ` [PATCH V2 4/7] drm/radeon: Replace kmap() with kmap_local_page() ira.weiny
2022-01-24 1:54 ` [PATCH V2 5/7] drm/msm: Alter comment to use kmap_local_page() ira.weiny
2022-01-24 1:54 ` [PATCH V2 6/7] drm/amdgpu: Ensure kunmap is called on error ira.weiny
2022-01-24 1:54 ` [PATCH V2 7/7] drm/radeon: " ira.weiny
2022-01-24 12:08 ` [PATCH V2 0/7] DRM kmap() fixes and kmap_local_page() conversions Christian König
2022-01-24 18:27 ` Ira Weiny
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