From: Christoph Hellwig <hch@lst.de>
To: x86@kernel.org
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
David Woodhouse <dwmw2@infradead.org>,
Muli Ben-Yehuda <mulix@mulix.org>, Jon Mason <jdmason@kudzu.us>,
Joerg Roedel <joro@8bytes.org>,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: [PATCH 05/14] x86/amd_gart: look at coherent_dma_mask instead of GFP_DMA
Date: Mon, 19 Mar 2018 11:38:17 +0100 [thread overview]
Message-ID: <20180319103826.12853-6-hch@lst.de> (raw)
In-Reply-To: <20180319103826.12853-1-hch@lst.de>
We want to phase out looking at the magic GFP_DMA flag in the dma mapping
routines, so switch the gart driver to use the coherent_dma_mask instead,
which is used to select the GFP_DMA flag in the caller.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
arch/x86/kernel/amd_gart_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 52e3abcf3e70..79ac6caaaabb 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -484,7 +484,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
unsigned long align_mask;
struct page *page;
- if (force_iommu && !(flag & GFP_DMA)) {
+ if (force_iommu && dev->coherent_dma_mask > DMA_BIT_MASK(24)) {
flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
page = alloc_pages(flag | __GFP_ZERO, get_order(size));
if (!page)
--
2.14.2
next prev parent reply other threads:[~2018-03-19 10:42 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-19 10:38 use generic dma-direct and swiotlb code for x86 V3 Christoph Hellwig
2018-03-19 10:38 ` [PATCH 01/14] x86: remove X86_PPRO_FENCE Christoph Hellwig
2018-03-20 11:04 ` [tip:x86/pti] x86/cpu: Remove the CONFIG_X86_PPRO_FENCE=y quirk tip-bot for Christoph Hellwig
2018-03-20 12:51 ` Peter Zijlstra
2018-03-19 10:38 ` [PATCH 02/14] x86: remove dma_alloc_coherent_mask Christoph Hellwig
2018-03-23 19:48 ` [tip:x86/dma] x86/dma: Remove dma_alloc_coherent_mask() tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 03/14] x86: use dma-direct Christoph Hellwig
2018-03-23 19:49 ` [tip:x86/dma] x86/dma: Use DMA-direct (CONFIG_DMA_DIRECT_OPS=y) tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 04/14] x86: use generic swiotlb_ops Christoph Hellwig
2018-03-23 19:49 ` [tip:x86/dma] x86/dma: Use " tip-bot for Christoph Hellwig
2018-03-19 10:38 ` Christoph Hellwig [this message]
2018-03-23 19:50 ` [tip:x86/dma] x86/dma/amd_gart: Look at dev->coherent_dma_mask instead of GFP_DMA tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 06/14] x86/amd_gart: use dma_direct_{alloc,free} Christoph Hellwig
2018-03-23 19:50 ` [tip:x86/dma] x86/dma/amd_gart: Use dma_direct_{alloc,free}() tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 07/14] iommu/amd_iommu: use dma_direct_{alloc,free} Christoph Hellwig
2018-03-23 19:51 ` [tip:x86/dma] iommu/amd_iommu: Use CONFIG_DMA_DIRECT_OPS=y and dma_direct_{alloc,free}() tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 08/14] iommu/intel-iommu: cleanup intel_{alloc,free}_coherent Christoph Hellwig
2018-03-23 19:51 ` [tip:x86/dma] iommu/intel-iommu: Enable CONFIG_DMA_DIRECT_OPS=y and clean up intel_{alloc,free}_coherent() tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 09/14] x86: remove dma_alloc_coherent_gfp_flags Christoph Hellwig
2018-03-23 19:52 ` [tip:x86/dma] x86/dma: Remove dma_alloc_coherent_gfp_flags() tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 10/14] set_memory.h: provide set_memory_{en,de}crypted stubs Christoph Hellwig
2018-03-19 14:21 ` Tom Lendacky
2018-03-23 19:52 ` [tip:x86/dma] set_memory.h: Provide set_memory_{en,de}crypted() stubs tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 11/14] swiotlb: remove swiotlb_set_mem_attributes Christoph Hellwig
2018-03-19 14:41 ` Tom Lendacky
2018-03-23 19:52 ` [tip:x86/dma] dma/swiotlb: Remove swiotlb_set_mem_attributes() tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 12/14] dma-direct: handle the memory encryption bit in common code Christoph Hellwig
2018-03-19 14:50 ` Tom Lendacky
2018-03-19 15:19 ` Robin Murphy
2018-03-19 15:24 ` Christoph Hellwig
2018-03-19 15:37 ` Robin Murphy
2018-03-19 15:48 ` Will Deacon
2018-03-19 16:03 ` Christoph Hellwig
2018-03-19 16:55 ` Will Deacon
2018-03-19 18:01 ` Catalin Marinas
2018-03-19 19:49 ` Christoph Hellwig
2018-03-20 16:23 ` Catalin Marinas
2018-03-23 19:53 ` [tip:x86/dma] dma/direct: Handle " tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 13/14] dma-direct: handle force decryption for dma coherent buffers " Christoph Hellwig
2018-03-19 14:51 ` Tom Lendacky
2018-03-23 19:53 ` [tip:x86/dma] dma/direct: Handle force decryption for DMA " tip-bot for Christoph Hellwig
2018-03-19 10:38 ` [PATCH 14/14] swiotlb: remove swiotlb_{alloc,free}_coherent Christoph Hellwig
2018-03-23 19:54 ` [tip:x86/dma] dma/swiotlb: Remove swiotlb_{alloc,free}_coherent() tip-bot for Christoph Hellwig
2018-03-19 14:00 ` use generic dma-direct and swiotlb code for x86 V3 Tom Lendacky
2018-03-19 14:56 ` Thomas Gleixner
2018-03-19 15:27 ` Konrad Rzeszutek Wilk
2018-03-19 15:28 ` Christoph Hellwig
2018-03-20 8:37 ` Ingo Molnar
2018-03-20 8:44 ` Christoph Hellwig
2018-03-20 9:03 ` Ingo Molnar
[not found] ` <CAPbh3rspsGE3i=WzxC4DL=EDTEbhVZVb29j-fyhAXZRwk=Xncg@mail.gmail.com>
2018-03-20 15:16 ` Christoph Hellwig
2018-03-21 14:32 ` Konrad Rzeszutek Wilk
-- strict thread matches above, loose matches on Subject: below --
2018-03-14 17:51 use generic dma-direct and swiotlb code for x86 V2 Christoph Hellwig
2018-03-14 17:52 ` [PATCH 05/14] x86/amd_gart: look at coherent_dma_mask instead of GFP_DMA Christoph Hellwig
2018-03-15 17:47 ` Konrad Rzeszutek Wilk
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