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From: Christoph Hellwig <hch@lst.de>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Juergen Gross <jgross@suse.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	xen-devel@lists.xenproject.org, iommu@lists.linux-foundation.org
Subject: [PATCH 2/7] swiotlb: use swiotlb_size_or_default in swiotlb_init
Date: Thu, 22 Apr 2021 09:19:16 +0200	[thread overview]
Message-ID: <20210422071921.1428607-3-hch@lst.de> (raw)
In-Reply-To: <20210422071921.1428607-1-hch@lst.de>

Use swiotlb_size_or_default to calculate the buffer size insted of
open coding it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 kernel/dma/swiotlb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index c7b3dd86db7f56..27461fd63e0330 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -209,7 +209,7 @@ int __init swiotlb_init_with_tbl(char *tlb, size_t bytes, int verbose)
 void  __init
 swiotlb_init(int verbose)
 {
-	size_t bytes = default_nslabs << IO_TLB_SHIFT;
+	size_t bytes = swiotlb_size_or_default();
 	void *tlb;
 
 	if (swiotlb_force == SWIOTLB_NO_FORCE)
-- 
2.30.1



  parent reply	other threads:[~2021-04-22  7:20 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-22  7:19 cleanup and fix swiotlb sizing Christoph Hellwig
2021-04-22  7:19 ` [PATCH 1/7] swiotlb: pass bytes instead of nslabs to swiotlb_init_with_tbl Christoph Hellwig
2021-04-22  7:19 ` Christoph Hellwig [this message]
2021-04-22  7:19 ` [PATCH 3/7] swiotlb: use swiotlb_adjust_size in setup_io_tlb_npages Christoph Hellwig
2021-04-22  7:19 ` [PATCH 4/7] powerpc/pseries: simplify svm_swiotlb_init Christoph Hellwig
2021-04-22  7:19 ` [PATCH 5/7] MIPS/octeon: simplify swiotlb initialization Christoph Hellwig
2021-04-22  7:19 ` [PATCH 6/7] swiotlb: replace default_nslabs with a byte value Christoph Hellwig
2021-04-22  7:19 ` [PATCH 7/7] swiotlb: don't override the command line in swiotlb_adjust_size Christoph Hellwig
2021-04-23  5:23   ` Tom Lendacky

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