From: Christoph Hellwig <hch@lst.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org, iommu@lists.linux-foundation.org,
linux-mm@kvack.org, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 33/33] powerpc/dma: trim the fat from <asm/dma-mapping.h>
Date: Tue, 9 Oct 2018 15:25:00 +0200 [thread overview]
Message-ID: <20181009132500.17643-34-hch@lst.de> (raw)
In-Reply-To: <20181009132500.17643-1-hch@lst.de>
There is no need to provide anything but get_arch_dma_ops to
<linux/dma-mapping.h>. More the remaining declarations to <asm/iommu.h>
and drop all the includes.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/powerpc/include/asm/dma-mapping.h | 29 --------------------------
arch/powerpc/include/asm/iommu.h | 10 +++++++++
arch/powerpc/platforms/44x/ppc476.c | 1 +
3 files changed, 11 insertions(+), 29 deletions(-)
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index a59c42879194..565d6f74b189 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -1,37 +1,9 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2004 IBM
- *
- * Implements the generic device dma API for powerpc.
- * the pci and vio busses
*/
#ifndef _ASM_DMA_MAPPING_H
#define _ASM_DMA_MAPPING_H
-#ifdef __KERNEL__
-
-#include <linux/types.h>
-#include <linux/cache.h>
-/* need struct page definitions */
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <asm/io.h>
-#include <asm/swiotlb.h>
-
-static inline unsigned long device_to_mask(struct device *dev)
-{
- if (dev->dma_mask && *dev->dma_mask)
- return *dev->dma_mask;
- /* Assume devices without mask can take 32 bit addresses */
- return 0xfffffffful;
-}
-
-/*
- * Available generic sets of operations
- */
-#ifdef CONFIG_PPC64
-extern const struct dma_map_ops dma_iommu_ops;
-#endif
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
@@ -43,5 +15,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return NULL;
}
-#endif /* __KERNEL__ */
#endif /* _ASM_DMA_MAPPING_H */
diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h
index 264d04f1dcd1..db745575e6a4 100644
--- a/arch/powerpc/include/asm/iommu.h
+++ b/arch/powerpc/include/asm/iommu.h
@@ -334,5 +334,15 @@ extern bool iommu_fixed_is_weak;
#define iommu_fixed_is_weak false
#endif
+extern const struct dma_map_ops dma_iommu_ops;
+
+static inline unsigned long device_to_mask(struct device *dev)
+{
+ if (dev->dma_mask && *dev->dma_mask)
+ return *dev->dma_mask;
+ /* Assume devices without mask can take 32 bit addresses */
+ return 0xfffffffful;
+}
+
#endif /* __KERNEL__ */
#endif /* _ASM_IOMMU_H */
diff --git a/arch/powerpc/platforms/44x/ppc476.c b/arch/powerpc/platforms/44x/ppc476.c
index e55933f9cd55..a5e61e5c16e2 100644
--- a/arch/powerpc/platforms/44x/ppc476.c
+++ b/arch/powerpc/platforms/44x/ppc476.c
@@ -34,6 +34,7 @@
#include <asm/ppc4xx.h>
#include <asm/mpic.h>
#include <asm/mmu.h>
+#include <asm/swiotlb.h>
#include <linux/pci.h>
#include <linux/i2c.h>
--
2.19.0
next prev parent reply other threads:[~2018-10-09 13:25 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-09 13:24 use generic DMA mapping code in powerpc V3 Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 01/33] powerpc: use mm zones more sensibly Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
[not found] ` <20181009132500.17643-2-hch-jcswGhMUV9g@public.gmane.org>
2018-10-15 0:47 ` Benjamin Herrenschmidt
2018-10-15 0:47 ` Benjamin Herrenschmidt
2018-10-09 13:24 ` [PATCH 03/33] powerpc/dma: remove the unused ISA_DMA_THRESHOLD export Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 04/33] powerpc/dma: remove the unused dma_iommu_ops export Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 05/33] powerpc/dma: split the two __dma_alloc_coherent implementations Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 06/33] powerpc/dma: remove the no-op dma_nommu_unmap_{page,sg} routines Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 07/33] powerpc/dma: untangle vio_dma_mapping_ops from dma_iommu_ops Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 09/33] powerpc/pseries: unwind dma_get_required_mask_pSeriesLP a bit Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 10/33] powerpc/pseries: use the generic iommu bypass code Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 11/33] powerpc/cell: move dma direct window setup out of dma_configure Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 12/33] powerpc/cell: use the generic iommu bypass code Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 14/33] powerpc/dart: " Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 15/33] powerpc/powernv: remove pnv_pci_ioda_pe_single_vendor Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 16/33] powerpc/powernv: remove dead npu-dma code Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
[not found] ` <20181009132500.17643-17-hch-jcswGhMUV9g@public.gmane.org>
2018-10-15 1:34 ` Alexey Kardashevskiy
2018-10-15 1:34 ` Alexey Kardashevskiy
[not found] ` <7709932d-efb8-2c9b-5128-99cc491c302b-sLpHqDYs0B2HXe+LvDLADg@public.gmane.org>
2018-10-15 2:45 ` Benjamin Herrenschmidt
2018-10-15 2:45 ` Benjamin Herrenschmidt
2018-10-15 5:50 ` Christoph Hellwig
2018-10-15 5:50 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 17/33] powerpc/powernv: use the generic iommu bypass code Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
[not found] ` <20181009132500.17643-1-hch-jcswGhMUV9g@public.gmane.org>
2018-10-09 13:24 ` [PATCH 02/33] powerpc/dma: remove the unused ARCH_HAS_DMA_MMAP_COHERENT define Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 08/33] powerpc/dma: handle iommu bypass in dma_iommu_ops Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 13/33] powerpc/dart: remove dead cleanup code in iommu_init_early_dart Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 18/33] powerpc/dma: stop overriding dma_get_required_mask Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 19/33] powerpc/pci: remove the dma_set_mask pci_controller ops methods Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 20/33] powerpc/dma: remove the iommu fallback for coherent allocations Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 21/33] powerpc/dma: remove get_pci_dma_ops Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 22/33] powerpc/dma: move pci_dma_dev_setup_swiotlb to fsl_pci.c Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 23/33] powerpc/dma: remove max_direct_dma_addr Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 24/33] powerpc/dma: fix an off-by-one in dma_capable Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 25/33] cxl: drop the dma_set_mask callback from vphb Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 26/33] powerpc/fsl_pci: simplify fsl_pci_dma_set_mask Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 27/33] dma-mapping, powerpc: simplify the arch dma_set_mask override Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 28/33] powerpc/dma: use phys_to_dma instead of get_dma_offset Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 29/33] powerpc/dma: remove get_dma_offset Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 30/33] powerpc/dma: remove set_dma_offset Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 31/33] powerpc/dma: remove dma_nommu_mmap_coherent Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:24 ` [PATCH 32/33] powerpc/dma: use generic direct and swiotlb ops Christoph Hellwig
2018-10-09 13:24 ` Christoph Hellwig
2018-10-09 13:25 ` Christoph Hellwig [this message]
2018-10-09 13:25 ` [PATCH 33/33] powerpc/dma: trim the fat from <asm/dma-mapping.h> Christoph Hellwig
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