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authorCatalin Marinas <catalin.marinas@arm.com>2023-06-12 18:31:50 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-06-20 02:19:21 +0300
commit6716ccaf43e0fe2e759b84eb1cef4c684873a847 (patch)
treed23b9b2183a331dfa2bd385c23fd4718128c9572 /drivers/gpu/drm/drm_managed.c
parentbe6a5b5e9e47a7402083d931e18d594338f1849a (diff)
downloadlinux-6716ccaf43e0fe2e759b84eb1cef4c684873a847.tar.xz
drivers/gpu: use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN
ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA operations while ARCH_KMALLOC_MINALIGN is the minimum kmalloc() objects alignment. Link: https://lkml.kernel.org/r/20230612153201.554742-7-catalin.marinas@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Isaac J. Manjarres <isaacmanjarres@google.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Alasdair Kergon <agk@redhat.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Jerry Snitselaar <jsnitsel@redhat.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Logan Gunthorpe <logang@deltatee.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Mark Brown <broonie@kernel.org> Cc: Mike Snitzer <snitzer@kernel.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Saravana Kannan <saravanak@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/gpu/drm/drm_managed.c')
-rw-r--r--drivers/gpu/drm/drm_managed.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_managed.c b/drivers/gpu/drm/drm_managed.c
index c21c3f623033..5423ad883729 100644
--- a/drivers/gpu/drm/drm_managed.c
+++ b/drivers/gpu/drm/drm_managed.c
@@ -49,10 +49,10 @@ struct drmres {
* Some archs want to perform DMA into kmalloc caches
* and need a guaranteed alignment larger than
* the alignment of a 64-bit integer.
- * Thus we use ARCH_KMALLOC_MINALIGN here and get exactly the same
- * buffer alignment as if it was allocated by plain kmalloc().
+ * Thus we use ARCH_DMA_MINALIGN for data[] which will force the same
+ * alignment for struct drmres when allocated by kmalloc().
*/
- u8 __aligned(ARCH_KMALLOC_MINALIGN) data[];
+ u8 __aligned(ARCH_DMA_MINALIGN) data[];
};
static void free_dr(struct drmres *dr)