All of lore.kernel.org
 help / color / mirror / Atom feed
From: Catalin Marinas <catalin.marinas@arm.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Christoph Hellwig <hch@lst.de>,
	Robin Murphy <robin.murphy@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Ard Biesheuvel <ardb@kernel.org>,
	Isaac Manjarres <isaacmanjarres@google.com>,
	Saravana Kannan <saravanak@google.com>,
	Alasdair Kergon <agk@redhat.com>, Daniel Vetter <daniel@ffwll.ch>,
	Joerg Roedel <joro@8bytes.org>, Mark Brown <broonie@kernel.org>,
	Mike Snitzer <snitzer@kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Jonathan Cameron <jic23@kernel.org>,
	linux-mm@kvack.org, iommu@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 07/17] drivers/usb: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN
Date: Wed, 31 May 2023 16:48:26 +0100	[thread overview]
Message-ID: <20230531154836.1366225-8-catalin.marinas@arm.com> (raw)
In-Reply-To: <20230531154836.1366225-1-catalin.marinas@arm.com>

ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA
operations while ARCH_KMALLOC_MINALIGN is the minimum kmalloc() objects
alignment.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/buffer.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index fbb087b728dc..e21d8d106977 100644
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -34,13 +34,13 @@ void __init usb_init_pool_max(void)
 {
 	/*
 	 * The pool_max values must never be smaller than
-	 * ARCH_KMALLOC_MINALIGN.
+	 * ARCH_DMA_MINALIGN.
 	 */
-	if (ARCH_KMALLOC_MINALIGN <= 32)
+	if (ARCH_DMA_MINALIGN <= 32)
 		;			/* Original value is okay */
-	else if (ARCH_KMALLOC_MINALIGN <= 64)
+	else if (ARCH_DMA_MINALIGN <= 64)
 		pool_max[0] = 64;
-	else if (ARCH_KMALLOC_MINALIGN <= 128)
+	else if (ARCH_DMA_MINALIGN <= 128)
 		pool_max[0] = 0;	/* Don't use this pool */
 	else
 		BUILD_BUG();		/* We don't allow this */


WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
	Christoph Hellwig <hch@lst.de>,
	Robin Murphy <robin.murphy@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Ard Biesheuvel <ardb@kernel.org>,
	Isaac Manjarres <isaacmanjarres@google.com>,
	Saravana Kannan <saravanak@google.com>,
	Alasdair Kergon <agk@redhat.com>, Daniel Vetter <daniel@ffwll.ch>,
	Joerg Roedel <joro@8bytes.org>, Mark Brown <broonie@kernel.org>,
	Mike Snitzer <snitzer@kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Jonathan Cameron <jic23@kernel.org>,
	linux-mm@kvack.org, iommu@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 07/17] drivers/usb: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN
Date: Wed, 31 May 2023 16:48:26 +0100	[thread overview]
Message-ID: <20230531154836.1366225-8-catalin.marinas@arm.com> (raw)
In-Reply-To: <20230531154836.1366225-1-catalin.marinas@arm.com>

ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA
operations while ARCH_KMALLOC_MINALIGN is the minimum kmalloc() objects
alignment.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/buffer.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index fbb087b728dc..e21d8d106977 100644
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -34,13 +34,13 @@ void __init usb_init_pool_max(void)
 {
 	/*
 	 * The pool_max values must never be smaller than
-	 * ARCH_KMALLOC_MINALIGN.
+	 * ARCH_DMA_MINALIGN.
 	 */
-	if (ARCH_KMALLOC_MINALIGN <= 32)
+	if (ARCH_DMA_MINALIGN <= 32)
 		;			/* Original value is okay */
-	else if (ARCH_KMALLOC_MINALIGN <= 64)
+	else if (ARCH_DMA_MINALIGN <= 64)
 		pool_max[0] = 64;
-	else if (ARCH_KMALLOC_MINALIGN <= 128)
+	else if (ARCH_DMA_MINALIGN <= 128)
 		pool_max[0] = 0;	/* Don't use this pool */
 	else
 		BUILD_BUG();		/* We don't allow this */

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2023-05-31 15:49 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-31 15:48 [PATCH v6 00/17] mm, dma, arm64: Reduce ARCH_KMALLOC_MINALIGN to 8 Catalin Marinas
2023-05-31 15:48 ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 01/17] mm/slab: Decouple ARCH_KMALLOC_MINALIGN from ARCH_DMA_MINALIGN Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-06-09 12:32   ` Vlastimil Babka
2023-06-09 12:32     ` Vlastimil Babka
2023-06-09 13:44     ` Catalin Marinas
2023-06-09 13:44       ` Catalin Marinas
2023-06-09 13:57       ` Catalin Marinas
2023-06-09 13:57         ` Catalin Marinas
2023-06-09 14:13         ` Vlastimil Babka
2023-06-09 14:13           ` Vlastimil Babka
2023-05-31 15:48 ` [PATCH v6 02/17] dma: Allow dma_get_cache_alignment() to be overridden by the arch code Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 03/17] mm/slab: Simplify create_kmalloc_cache() args and make it static Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-06-09 13:03   ` Vlastimil Babka
2023-06-09 13:03     ` Vlastimil Babka
2023-05-31 15:48 ` [PATCH v6 04/17] mm/slab: Limit kmalloc() minimum alignment to dma_get_cache_alignment() Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-06-09 14:33   ` Vlastimil Babka
2023-06-09 14:33     ` Vlastimil Babka
2023-05-31 15:48 ` [PATCH v6 05/17] drivers/base: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 06/17] drivers/gpu: " Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` Catalin Marinas [this message]
2023-05-31 15:48   ` [PATCH v6 07/17] drivers/usb: " Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 08/17] drivers/spi: " Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 09/17] dm-crypt: " Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 10/17] iio: core: " Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-06-02 11:19   ` Jonathan Cameron
2023-06-02 11:19     ` Jonathan Cameron
2023-05-31 15:48 ` [PATCH v6 11/17] arm64: Allow kmalloc() caches aligned to the smaller cache_line_size() Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 12/17] scatterlist: Add dedicated config for DMA flags Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 13/17] dma-mapping: Name SG DMA flag helpers consistently Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 14/17] dma-mapping: Force bouncing if the kmalloc() size is not cache-line-aligned Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-05-31 15:48 ` [PATCH v6 15/17] iommu/dma: Force bouncing if the size is not cacheline-aligned Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-06-09 11:52   ` Robin Murphy
2023-06-09 11:52     ` Robin Murphy
2023-05-31 15:48 ` [PATCH v6 16/17] mm: slab: Reduce the kmalloc() minimum alignment if DMA bouncing possible Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-06-09 14:39   ` Vlastimil Babka
2023-06-09 14:39     ` Vlastimil Babka
2023-05-31 15:48 ` [PATCH v6 17/17] arm64: Enable ARCH_WANT_KMALLOC_DMA_BOUNCE for arm64 Catalin Marinas
2023-05-31 15:48   ` Catalin Marinas
2023-06-08  5:45 ` [PATCH v6 00/17] mm, dma, arm64: Reduce ARCH_KMALLOC_MINALIGN to 8 Isaac Manjarres
2023-06-08  5:45   ` Isaac Manjarres
2023-06-08  8:05   ` Ard Biesheuvel
2023-06-08  8:05     ` Ard Biesheuvel
2023-06-08 21:29     ` Isaac Manjarres
2023-06-08 21:29       ` Isaac Manjarres
2023-06-09  8:11       ` Petr Tesařík
2023-06-09  8:11         ` Petr Tesařík
2023-06-12  7:44         ` Tomonori Fujita
2023-06-12  7:47           ` Christoph Hellwig
2023-06-14 23:55             ` Isaac Manjarres
2023-06-14 23:55               ` Isaac Manjarres

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=20230531154836.1366225-8-catalin.marinas@arm.com \
    --to=catalin.marinas@arm.com \
    --cc=agk@redhat.com \
    --cc=akpm@linux-foundation.org \
    --cc=ardb@kernel.org \
    --cc=arnd@arndb.de \
    --cc=broonie@kernel.org \
    --cc=daniel@ffwll.ch \
    --cc=gregkh@linuxfoundation.org \
    --cc=hch@lst.de \
    --cc=herbert@gondor.apana.org.au \
    --cc=iommu@lists.linux.dev \
    --cc=isaacmanjarres@google.com \
    --cc=jic23@kernel.org \
    --cc=joro@8bytes.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-mm@kvack.org \
    --cc=maz@kernel.org \
    --cc=rafael@kernel.org \
    --cc=robin.murphy@arm.com \
    --cc=saravanak@google.com \
    --cc=snitzer@kernel.org \
    --cc=torvalds@linux-foundation.org \
    --cc=will@kernel.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.