* [PATCH 1/9] treewide: Constify most dma_map_ops structures
[not found] <20170111005648.14988-1-bart.vanassche@sandisk.com>
@ 2017-01-11 0:56 ` Bart Van Assche
2017-01-11 0:56 ` Bart Van Assche
2017-01-11 0:56 ` [PATCH 2/9] Move dma_ops from archdata into struct device Bart Van Assche
1 sibling, 1 reply; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 0:56 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma, linux-kernel, Aurelien Jacquiot, Catalin Marinas,
Chris Zankel, David Howells, David S . Miller, Fenghua Yu,
Geert Uytterhoeven, Geoff Levand, Guan Xuetao, H . Peter Anvin,
Haavard Skinnemoen, Hans-Christian Egtvedt, Helge Deller,
Ingo Molnar, James E . J . Bottomley, Jesper Nilsson,
Joerg Roedel, Jon Mason, Jonas Bonn, Ley Foon Tan, Mark Salter,
Max Filippov, Mikael Starvik, Muli Ben-Yehuda, Rich Felker,
Russell King, Stafford Horne, Stefan Kristiansson,
Stefano Stabellini, Thomas Gleixner, Tony Luck, Will Deacon, x86,
Yoshinori Sato, adi-buildroot-devel, iommu, linux-alpha,
linux-am33-list, linux-arm-kernel, linux-c6x-dev,
linux-cris-kernel, linux-hexagon, linux-ia64, linux-m68k,
linux-metag, linux-mips, linux-parisc, linux-pci, linux-s390,
linux-sh, linux-snps-arc, linux-xtensa, linuxppc-dev, nios2-dev,
openrisc, sparclinux, uclinux-h8-devel, xen-devel
Most dma_map_ops structures are never modified. Constify these
structures such that these can be write-protected. This patch
has been generated as follows:
git grep -l 'struct dma_map_ops' |
xargs -d\\n sed -i \
-e 's/struct dma_map_ops/const struct dma_map_ops/g' \
-e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \
-e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \
-e 's/const const struct dma_map_ops /const struct dma_map_ops /g';
sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \
$(git grep -l 'struct dma_map_ops intel_dma_ops');
sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \
$(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc);
sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \
-e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \
-e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \
drivers/pci/host/*.c
sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c
sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: x86@kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: iommu@lists.linux-foundation.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: sparclinux@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: xen-devel@lists.xenproject.org
---
arch/alpha/include/asm/dma-mapping.h | 4 +--
arch/alpha/kernel/pci-noop.c | 4 +--
arch/alpha/kernel/pci_iommu.c | 4 +--
arch/arc/include/asm/dma-mapping.h | 4 +--
arch/arc/mm/dma.c | 2 +-
arch/arm/common/dmabounce.c | 2 +-
arch/arm/include/asm/device.h | 2 +-
arch/arm/include/asm/dma-mapping.h | 10 +++---
arch/arm/mm/dma-mapping.c | 22 ++++++------
arch/arm/xen/mm.c | 4 +--
arch/arm64/include/asm/device.h | 2 +-
arch/arm64/include/asm/dma-mapping.h | 6 ++--
arch/arm64/mm/dma-mapping.c | 6 ++--
arch/avr32/include/asm/dma-mapping.h | 4 +--
arch/avr32/mm/dma-coherent.c | 2 +-
arch/blackfin/include/asm/dma-mapping.h | 4 +--
arch/blackfin/kernel/dma-mapping.c | 2 +-
arch/c6x/include/asm/dma-mapping.h | 4 +--
arch/c6x/kernel/dma.c | 2 +-
arch/cris/arch-v32/drivers/pci/dma.c | 2 +-
arch/cris/include/asm/dma-mapping.h | 6 ++--
arch/frv/include/asm/dma-mapping.h | 4 +--
arch/frv/mb93090-mb00/pci-dma-nommu.c | 2 +-
arch/frv/mb93090-mb00/pci-dma.c | 2 +-
arch/h8300/include/asm/dma-mapping.h | 4 +--
arch/h8300/kernel/dma.c | 2 +-
arch/hexagon/include/asm/dma-mapping.h | 4 +--
arch/hexagon/kernel/dma.c | 4 +--
arch/ia64/hp/common/hwsw_iommu.c | 4 +--
arch/ia64/hp/common/sba_iommu.c | 4 +--
arch/ia64/include/asm/dma-mapping.h | 2 +-
arch/ia64/include/asm/machvec.h | 4 +--
arch/ia64/kernel/dma-mapping.c | 4 +--
arch/ia64/kernel/pci-dma.c | 10 +++---
arch/ia64/kernel/pci-swiotlb.c | 2 +-
arch/m32r/include/asm/device.h | 2 +-
arch/m32r/include/asm/dma-mapping.h | 2 +-
arch/m68k/include/asm/dma-mapping.h | 4 +--
arch/m68k/kernel/dma.c | 2 +-
arch/metag/include/asm/dma-mapping.h | 4 +--
arch/metag/kernel/dma.c | 2 +-
arch/microblaze/include/asm/dma-mapping.h | 4 +--
arch/microblaze/kernel/dma.c | 2 +-
arch/mips/cavium-octeon/dma-octeon.c | 4 +--
arch/mips/include/asm/device.h | 2 +-
arch/mips/include/asm/dma-mapping.h | 4 +--
.../include/asm/mach-cavium-octeon/dma-coherence.h | 2 +-
arch/mips/include/asm/netlogic/common.h | 2 +-
arch/mips/loongson64/common/dma-swiotlb.c | 2 +-
arch/mips/mm/dma-default.c | 4 +--
arch/mips/netlogic/common/nlm-dma.c | 2 +-
arch/mn10300/include/asm/dma-mapping.h | 4 +--
arch/mn10300/mm/dma-alloc.c | 2 +-
arch/nios2/include/asm/dma-mapping.h | 4 +--
arch/nios2/mm/dma-mapping.c | 2 +-
arch/openrisc/include/asm/dma-mapping.h | 4 +--
arch/openrisc/kernel/dma.c | 2 +-
arch/parisc/include/asm/dma-mapping.h | 8 ++---
arch/parisc/kernel/drivers.c | 2 +-
arch/parisc/kernel/pci-dma.c | 4 +--
arch/powerpc/include/asm/device.h | 2 +-
arch/powerpc/include/asm/dma-mapping.h | 6 ++--
arch/powerpc/include/asm/pci.h | 4 +--
arch/powerpc/include/asm/swiotlb.h | 2 +-
arch/powerpc/kernel/dma-swiotlb.c | 2 +-
arch/powerpc/kernel/dma.c | 6 ++--
arch/powerpc/kernel/pci-common.c | 6 ++--
arch/powerpc/platforms/cell/iommu.c | 4 +--
arch/powerpc/platforms/powernv/npu-dma.c | 2 +-
arch/powerpc/platforms/ps3/system-bus.c | 4 +--
arch/powerpc/platforms/pseries/ibmebus.c | 2 +-
arch/powerpc/platforms/pseries/vio.c | 2 +-
arch/s390/include/asm/device.h | 2 +-
arch/s390/include/asm/dma-mapping.h | 4 +--
arch/s390/pci/pci_dma.c | 2 +-
arch/sh/include/asm/dma-mapping.h | 4 +--
arch/sh/kernel/dma-nommu.c | 2 +-
arch/sh/mm/consistent.c | 2 +-
arch/sparc/include/asm/dma-mapping.h | 8 ++---
arch/sparc/kernel/iommu.c | 4 +--
arch/sparc/kernel/ioport.c | 8 ++---
arch/sparc/kernel/pci_sun4v.c | 2 +-
arch/tile/include/asm/device.h | 2 +-
arch/tile/include/asm/dma-mapping.h | 12 +++----
arch/tile/kernel/pci-dma.c | 24 ++++++-------
arch/unicore32/include/asm/dma-mapping.h | 4 +--
arch/unicore32/mm/dma-swiotlb.c | 2 +-
arch/x86/include/asm/device.h | 4 +--
arch/x86/include/asm/dma-mapping.h | 4 +--
arch/x86/include/asm/iommu.h | 2 +-
arch/x86/kernel/amd_gart_64.c | 2 +-
arch/x86/kernel/pci-calgary_64.c | 2 +-
arch/x86/kernel/pci-dma.c | 4 +--
arch/x86/kernel/pci-nommu.c | 2 +-
arch/x86/kernel/pci-swiotlb.c | 2 +-
arch/x86/pci/sta2x11-fixup.c | 2 +-
arch/x86/xen/pci-swiotlb-xen.c | 2 +-
arch/xtensa/include/asm/device.h | 2 +-
arch/xtensa/include/asm/dma-mapping.h | 4 +--
arch/xtensa/kernel/pci-dma.c | 2 +-
drivers/iommu/amd_iommu.c | 4 +--
drivers/misc/mic/bus/mic_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.h | 2 +-
drivers/misc/mic/bus/vop_bus.c | 2 +-
drivers/misc/mic/host/mic_boot.c | 4 +--
drivers/parisc/ccio-dma.c | 2 +-
drivers/parisc/sba_iommu.c | 2 +-
drivers/pci/host/vmd.c | 2 +-
include/linux/dma-mapping.h | 42 +++++++++++-----------
include/linux/mic_bus.h | 2 +-
include/xen/arm/hypervisor.h | 2 +-
lib/dma-noop.c | 2 +-
113 files changed, 227 insertions(+), 227 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index c63b6ac19ee5..d3480562411d 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _ALPHA_DMA_MAPPING_H
#define _ALPHA_DMA_MAPPING_H
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index bb152e21e5ae..ffbdb3fb672f 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -128,7 +128,7 @@ static int alpha_noop_supported(struct device *dev, u64 mask)
return mask < 0x00ffffffUL ? 0 : 1;
}
-struct dma_map_ops alpha_noop_ops = {
+const struct dma_map_ops alpha_noop_ops = {
.alloc = alpha_noop_alloc_coherent,
.free = dma_noop_free_coherent,
.map_page = dma_noop_map_page,
@@ -137,5 +137,5 @@ struct dma_map_ops alpha_noop_ops = {
.dma_supported = alpha_noop_supported,
};
-struct dma_map_ops *dma_ops = &alpha_noop_ops;
+const struct dma_map_ops *dma_ops = &alpha_noop_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 451fc9cdd323..7fd2329038a3 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -939,7 +939,7 @@ static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr)
return dma_addr == 0;
}
-struct dma_map_ops alpha_pci_ops = {
+const struct dma_map_ops alpha_pci_ops = {
.alloc = alpha_pci_alloc_coherent,
.free = alpha_pci_free_coherent,
.map_page = alpha_pci_map_page,
@@ -950,5 +950,5 @@ struct dma_map_ops alpha_pci_ops = {
.dma_supported = alpha_pci_supported,
};
-struct dma_map_ops *dma_ops = &alpha_pci_ops;
+const struct dma_map_ops *dma_ops = &alpha_pci_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 266f11c9bd59..fdff3aa60052 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -18,9 +18,9 @@
#include <plat/dma.h>
#endif
-extern struct dma_map_ops arc_dma_ops;
+extern const struct dma_map_ops arc_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &arc_dma_ops;
}
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 08450a1a5b5f..2a07e6ecafbd 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -218,7 +218,7 @@ static int arc_dma_supported(struct device *dev, u64 dma_mask)
return dma_mask == DMA_BIT_MASK(32);
}
-struct dma_map_ops arc_dma_ops = {
+const struct dma_map_ops arc_dma_ops = {
.alloc = arc_dma_alloc,
.free = arc_dma_free,
.mmap = arc_dma_mmap,
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 75055df1cda3..9b1b7be2ec0e 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -452,7 +452,7 @@ static int dmabounce_set_mask(struct device *dev, u64 dma_mask)
return arm_dma_ops.set_dma_mask(dev, dma_mask);
}
-static struct dma_map_ops dmabounce_ops = {
+static const struct dma_map_ops dmabounce_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
.mmap = arm_dma_mmap,
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index 4111592f0130..d8a572f9c187 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,7 @@
#define ASMARM_DEVICE_H
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMABOUNCE
struct dmabounce_device_info *dmabounce;
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index bf02dbd9ccda..1aabd781306f 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -13,17 +13,17 @@
#include <asm/xen/hypervisor.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops arm_dma_ops;
-extern struct dma_map_ops arm_coherent_dma_ops;
+extern const struct dma_map_ops arm_dma_ops;
+extern const struct dma_map_ops arm_coherent_dma_ops;
-static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
return &arm_dma_ops;
}
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (xen_initial_domain())
return xen_dma_ops;
@@ -31,7 +31,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return __generic_dma_ops(dev);
}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
BUG_ON(!dev);
dev->archdata.dma_ops = ops;
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ab7710002ba6..d26fe1a35687 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -180,7 +180,7 @@ static void arm_dma_sync_single_for_device(struct device *dev,
__dma_page_cpu_to_dev(page, offset, size, dir);
}
-struct dma_map_ops arm_dma_ops = {
+const struct dma_map_ops arm_dma_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
.mmap = arm_dma_mmap,
@@ -204,7 +204,7 @@ static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs);
-struct dma_map_ops arm_coherent_dma_ops = {
+const struct dma_map_ops arm_coherent_dma_ops = {
.alloc = arm_coherent_dma_alloc,
.free = arm_coherent_dma_free,
.mmap = arm_coherent_dma_mmap,
@@ -1067,7 +1067,7 @@ static void __dma_page_dev_to_cpu(struct page *page, unsigned long off,
int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i, j;
@@ -1101,7 +1101,7 @@ int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -1120,7 +1120,7 @@ void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -1139,7 +1139,7 @@ void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -2099,7 +2099,7 @@ static void arm_iommu_sync_single_for_device(struct device *dev,
__dma_page_cpu_to_dev(page, offset, size, dir);
}
-struct dma_map_ops iommu_ops = {
+const struct dma_map_ops iommu_ops = {
.alloc = arm_iommu_alloc_attrs,
.free = arm_iommu_free_attrs,
.mmap = arm_iommu_mmap_attrs,
@@ -2119,7 +2119,7 @@ struct dma_map_ops iommu_ops = {
.unmap_resource = arm_iommu_unmap_resource,
};
-struct dma_map_ops iommu_coherent_ops = {
+const struct dma_map_ops iommu_coherent_ops = {
.alloc = arm_coherent_iommu_alloc_attrs,
.free = arm_coherent_iommu_free_attrs,
.mmap = arm_coherent_iommu_mmap_attrs,
@@ -2319,7 +2319,7 @@ void arm_iommu_detach_device(struct device *dev)
}
EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
-static struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
+static const struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
{
return coherent ? &iommu_coherent_ops : &iommu_ops;
}
@@ -2374,7 +2374,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev) { }
#endif /* CONFIG_ARM_DMA_USE_IOMMU */
-static struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
+static const struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
{
return coherent ? &arm_coherent_dma_ops : &arm_dma_ops;
}
@@ -2382,7 +2382,7 @@ static struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)
{
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
dev->archdata.dma_coherent = coherent;
if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index bd62d94f8ac5..ce18c91b50a1 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -182,10 +182,10 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
}
EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region);
-struct dma_map_ops *xen_dma_ops;
+const struct dma_map_ops *xen_dma_ops;
EXPORT_SYMBOL(xen_dma_ops);
-static struct dma_map_ops xen_swiotlb_dma_ops = {
+static const struct dma_map_ops xen_swiotlb_dma_ops = {
.alloc = xen_swiotlb_alloc_coherent,
.free = xen_swiotlb_free_coherent,
.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 243ef256b8c9..00c678cc31e1 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,7 @@
#define __ASM_DEVICE_H
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index ccea82c2b089..1fedb43be712 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -25,9 +25,9 @@
#include <asm/xen/hypervisor.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0)
-extern struct dma_map_ops dummy_dma_ops;
+extern const struct dma_map_ops dummy_dma_ops;
-static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
@@ -39,7 +39,7 @@ static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops;
}
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (xen_initial_domain())
return xen_dma_ops;
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index e04082700bb1..bcef6368d48f 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -352,7 +352,7 @@ static int __swiotlb_dma_supported(struct device *hwdev, u64 mask)
return 1;
}
-static struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops swiotlb_dma_ops = {
.alloc = __dma_alloc,
.free = __dma_free,
.mmap = __swiotlb_mmap,
@@ -505,7 +505,7 @@ static int __dummy_dma_supported(struct device *hwdev, u64 mask)
return 0;
}
-struct dma_map_ops dummy_dma_ops = {
+const struct dma_map_ops dummy_dma_ops = {
.alloc = __dummy_alloc,
.free = __dummy_free,
.mmap = __dummy_mmap,
@@ -784,7 +784,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
}
-static struct dma_map_ops iommu_dma_ops = {
+static const struct dma_map_ops iommu_dma_ops = {
.alloc = __iommu_alloc_attrs,
.free = __iommu_free_attrs,
.mmap = __iommu_mmap_attrs,
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index 1115f2a645d1..b2b43c0e0774 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -4,9 +4,9 @@
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
int direction);
-extern struct dma_map_ops avr32_dma_ops;
+extern const struct dma_map_ops avr32_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &avr32_dma_ops;
}
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index 54534e5d0781..555222d4f414 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -191,7 +191,7 @@ static void avr32_dma_sync_sg_for_device(struct device *dev,
dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
}
-struct dma_map_ops avr32_dma_ops = {
+const struct dma_map_ops avr32_dma_ops = {
.alloc = avr32_dma_alloc,
.free = avr32_dma_free,
.map_page = avr32_dma_map_page,
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 3490570aaa82..320fb50fbd41 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -36,9 +36,9 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
__dma_sync(addr, size, dir);
}
-extern struct dma_map_ops bfin_dma_ops;
+extern const struct dma_map_ops bfin_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &bfin_dma_ops;
}
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index a27a74a18fb0..477bb29a7987 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -159,7 +159,7 @@ static inline void bfin_dma_sync_single_for_device(struct device *dev,
_dma_sync(handle, size, dir);
}
-struct dma_map_ops bfin_dma_ops = {
+const struct dma_map_ops bfin_dma_ops = {
.alloc = bfin_dma_alloc,
.free = bfin_dma_free,
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 5717b1e52d96..88258b9ebc8e 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -17,9 +17,9 @@
*/
#define DMA_ERROR_CODE ~0
-extern struct dma_map_ops c6x_dma_ops;
+extern const struct dma_map_ops c6x_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &c6x_dma_ops;
}
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index 6752df32ef06..9fff8be75f58 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -123,7 +123,7 @@ static void c6x_dma_sync_sg_for_device(struct device *dev,
}
-struct dma_map_ops c6x_dma_ops = {
+const struct dma_map_ops c6x_dma_ops = {
.alloc = c6x_dma_alloc,
.free = c6x_dma_free,
.map_page = c6x_dma_map_page,
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index 1f0636793f0c..7072341995ff 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -69,7 +69,7 @@ static inline int v32_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops v32_dma_ops = {
+const struct dma_map_ops v32_dma_ops = {
.alloc = v32_dma_alloc,
.free = v32_dma_free,
.map_page = v32_dma_map_page,
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index 5a370178a0e9..aae4fbc0a656 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -2,14 +2,14 @@
#define _ASM_CRIS_DMA_MAPPING_H
#ifdef CONFIG_PCI
-extern struct dma_map_ops v32_dma_ops;
+extern const struct dma_map_ops v32_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &v32_dma_ops;
}
#else
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
BUG();
return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 9a82bfa4303b..150cc00544a8 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -7,9 +7,9 @@
extern unsigned long __nongprelbss dma_coherent_mem_start;
extern unsigned long __nongprelbss dma_coherent_mem_end;
-extern struct dma_map_ops frv_dma_ops;
+extern const struct dma_map_ops frv_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &frv_dma_ops;
}
diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c
index 187688128c65..4a96de7f0af4 100644
--- a/arch/frv/mb93090-mb00/pci-dma-nommu.c
+++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c
@@ -164,7 +164,7 @@ static int frv_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops frv_dma_ops = {
+const struct dma_map_ops frv_dma_ops = {
.alloc = frv_dma_alloc,
.free = frv_dma_free,
.map_page = frv_dma_map_page,
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index dba7df918144..e7130abc0dae 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -106,7 +106,7 @@ static int frv_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops frv_dma_ops = {
+const struct dma_map_ops frv_dma_ops = {
.alloc = frv_dma_alloc,
.free = frv_dma_free,
.map_page = frv_dma_map_page,
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index 7ac7fadffed0..f804bca4c13f 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _H8300_DMA_MAPPING_H
#define _H8300_DMA_MAPPING_H
-extern struct dma_map_ops h8300_dma_map_ops;
+extern const struct dma_map_ops h8300_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &h8300_dma_map_ops;
}
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
index 3651da045806..225dd0a188dc 100644
--- a/arch/h8300/kernel/dma.c
+++ b/arch/h8300/kernel/dma.c
@@ -60,7 +60,7 @@ static int map_sg(struct device *dev, struct scatterlist *sgl,
return nents;
}
-struct dma_map_ops h8300_dma_map_ops = {
+const struct dma_map_ops h8300_dma_map_ops = {
.alloc = dma_alloc,
.free = dma_free,
.map_page = map_page,
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 7ef58df909fc..b812e917cd95 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -32,9 +32,9 @@ struct device;
extern int bad_dma_address;
#define DMA_ERROR_CODE bad_dma_address
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (unlikely(dev == NULL))
return NULL;
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index dbc4f1003da4..e74b65009587 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -25,7 +25,7 @@
#include <linux/module.h>
#include <asm/page.h>
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
int bad_dma_address; /* globals are automatically initialized to zero */
@@ -203,7 +203,7 @@ static void hexagon_sync_single_for_device(struct device *dev,
dma_sync(dma_addr_to_virt(dma_handle), size, dir);
}
-struct dma_map_ops hexagon_dma_ops = {
+const struct dma_map_ops hexagon_dma_ops = {
.alloc = hexagon_dma_alloc_coherent,
.free = hexagon_free_coherent,
.map_sg = hexagon_map_sg,
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index 1e4cae5ae053..0310078a95f8 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -18,7 +18,7 @@
#include <linux/export.h>
#include <asm/machvec.h>
-extern struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
+extern const struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
/* swiotlb declarations & definitions: */
extern int swiotlb_late_init_with_default_size (size_t size);
@@ -34,7 +34,7 @@ static inline int use_swiotlb(struct device *dev)
!sba_dma_ops.dma_supported(dev, *dev->dma_mask);
}
-struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
+const struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
{
if (use_swiotlb(dev))
return &swiotlb_dma_ops;
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 630ee8073899..aec4a3354abe 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -2096,7 +2096,7 @@ static int __init acpi_sba_ioc_init_acpi(void)
/* This has to run before acpi_scan_init(). */
arch_initcall(acpi_sba_ioc_init_acpi);
-extern struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
static int __init
sba_init(void)
@@ -2216,7 +2216,7 @@ sba_page_override(char *str)
__setup("sbapagesize=",sba_page_override);
-struct dma_map_ops sba_dma_ops = {
+const struct dma_map_ops sba_dma_ops = {
.alloc = sba_alloc_coherent,
.free = sba_free_coherent,
.map_page = sba_map_page,
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index d472805edfa9..05e467d56d86 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -14,7 +14,7 @@
#define DMA_ERROR_CODE 0
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
extern struct ia64_machine_vector ia64_mv;
extern void set_iommu_machvec(void);
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index ed7f09089f12..af285c423e1e 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -44,7 +44,7 @@ typedef void ia64_mv_kernel_launch_event_t(void);
/* DMA-mapping interface: */
typedef void ia64_mv_dma_init (void);
typedef u64 ia64_mv_dma_get_required_mask (struct device *);
-typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
+typedef const struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
/*
* WARNING: The legacy I/O space is _architected_. Platforms are
@@ -248,7 +248,7 @@ extern void machvec_init_from_cmdline(const char *cmdline);
# endif /* CONFIG_IA64_GENERIC */
extern void swiotlb_dma_init(void);
-extern struct dma_map_ops *dma_get_ops(struct device *);
+extern const struct dma_map_ops *dma_get_ops(struct device *);
/*
* Define default versions so we can extend machvec for new platforms without having
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 7f7916238208..e0dd97f4eb69 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -4,7 +4,7 @@
/* Set this to 1 if there is a HW IOMMU in the system */
int iommu_detected __read_mostly;
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
@@ -17,7 +17,7 @@ static int __init dma_init(void)
}
fs_initcall(dma_init);
-struct dma_map_ops *dma_get_ops(struct device *dev)
+const struct dma_map_ops *dma_get_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 992c1098c522..9094a73f996f 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -90,11 +90,11 @@ void __init pci_iommu_alloc(void)
{
dma_ops = &intel_dma_ops;
- dma_ops->sync_single_for_cpu = machvec_dma_sync_single;
- dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg;
- dma_ops->sync_single_for_device = machvec_dma_sync_single;
- dma_ops->sync_sg_for_device = machvec_dma_sync_sg;
- dma_ops->dma_supported = iommu_dma_supported;
+ intel_dma_ops.sync_single_for_cpu = machvec_dma_sync_single;
+ intel_dma_ops.sync_sg_for_cpu = machvec_dma_sync_sg;
+ intel_dma_ops.sync_single_for_device = machvec_dma_sync_single;
+ intel_dma_ops.sync_sg_for_device = machvec_dma_sync_sg;
+ intel_dma_ops.dma_supported = iommu_dma_supported;
/*
* The order of these functions is important for
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 2933208c0285..a14989dacded 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -30,7 +30,7 @@ static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops swiotlb_dma_ops = {
.alloc = ia64_swiotlb_alloc_coherent,
.free = ia64_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h
index 4a9f35e0973f..7955a9799466 100644
--- a/arch/m32r/include/asm/device.h
+++ b/arch/m32r/include/asm/device.h
@@ -4,7 +4,7 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 2c43a77fe942..99c43d2f05dc 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,7 +10,7 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 96c536194287..863509939d5a 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _M68K_DMA_MAPPING_H
#define _M68K_DMA_MAPPING_H
-extern struct dma_map_ops m68k_dma_ops;
+extern const struct dma_map_ops m68k_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &m68k_dma_ops;
}
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 07070065a425..0fc5dabb4a42 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -158,7 +158,7 @@ static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist,
return nents;
}
-struct dma_map_ops m68k_dma_ops = {
+const struct dma_map_ops m68k_dma_ops = {
.alloc = m68k_dma_alloc,
.free = m68k_dma_free,
.map_page = m68k_dma_map_page,
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index 27af5d479ce6..c156a7ac732f 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _ASM_METAG_DMA_MAPPING_H
#define _ASM_METAG_DMA_MAPPING_H
-extern struct dma_map_ops metag_dma_ops;
+extern const struct dma_map_ops metag_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &metag_dma_ops;
}
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index 91968d92652b..f0ab3a498328 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -575,7 +575,7 @@ static void metag_dma_sync_sg_for_device(struct device *dev,
dma_sync_for_device(sg_virt(sg), sg->length, direction);
}
-struct dma_map_ops metag_dma_ops = {
+const struct dma_map_ops metag_dma_ops = {
.alloc = metag_dma_alloc,
.free = metag_dma_free,
.map_page = metag_dma_map_page,
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 1768d4bdc8d3..c7faf2fb51d6 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -36,9 +36,9 @@
/*
* Available generic sets of operations
*/
-extern struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_direct_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &dma_direct_ops;
}
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 818daf230eb4..12e093a03e60 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -187,7 +187,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
#endif
}
-struct dma_map_ops dma_direct_ops = {
+const struct dma_map_ops dma_direct_ops = {
.alloc = dma_direct_alloc_coherent,
.free = dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index fd69528b24fb..897d32c888ee 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -205,7 +205,7 @@ static phys_addr_t octeon_unity_dma_to_phys(struct device *dev, dma_addr_t daddr
}
struct octeon_dma_map_ops {
- struct dma_map_ops dma_map_ops;
+ const struct dma_map_ops dma_map_ops;
dma_addr_t (*phys_to_dma)(struct device *dev, phys_addr_t paddr);
phys_addr_t (*dma_to_phys)(struct device *dev, dma_addr_t daddr);
};
@@ -333,7 +333,7 @@ static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = {
},
};
-struct dma_map_ops *octeon_pci_dma_map_ops;
+const struct dma_map_ops *octeon_pci_dma_map_ops;
void __init octeon_pci_dma_init(void)
{
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index 21c2082a0dfb..ebc5c1265473 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -10,7 +10,7 @@ struct dma_map_ops;
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMA_PERDEV_COHERENT
/* Non-zero if DMA is coherent with CPU caches */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 7aa71b9b0258..b59b084a7569 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -9,9 +9,9 @@
#include <dma-coherence.h>
#endif
-extern struct dma_map_ops *mips_dma_map_ops;
+extern const struct dma_map_ops *mips_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 460042ee5d6f..9110988b92a1 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -65,7 +65,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
struct dma_map_ops;
-extern struct dma_map_ops *octeon_pci_dma_map_ops;
+extern const struct dma_map_ops *octeon_pci_dma_map_ops;
extern char *octeon_swiotlb;
#endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index be52c2125d71..e0717d10e650 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -88,7 +88,7 @@ extern struct plat_smp_ops nlm_smp_ops;
extern char nlm_reset_entry[], nlm_reset_entry_end[];
/* SWIOTLB */
-extern struct dma_map_ops nlm_swiotlb_dma_ops;
+extern const struct dma_map_ops nlm_swiotlb_dma_ops;
extern unsigned int nlm_threads_per_core;
extern cpumask_t nlm_cpumask;
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index aab4fd681e1f..7296df043d92 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -122,7 +122,7 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
return daddr;
}
-static struct dma_map_ops loongson_dma_map_ops = {
+static const struct dma_map_ops loongson_dma_map_ops = {
.alloc = loongson_dma_alloc_coherent,
.free = loongson_dma_free_coherent,
.map_page = loongson_dma_map_page,
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index a39c36af97ad..1cb84472cb58 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -417,7 +417,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
EXPORT_SYMBOL(dma_cache_sync);
-static struct dma_map_ops mips_default_dma_map_ops = {
+static const struct dma_map_ops mips_default_dma_map_ops = {
.alloc = mips_dma_alloc_coherent,
.free = mips_dma_free_coherent,
.mmap = mips_dma_mmap,
@@ -433,7 +433,7 @@ static struct dma_map_ops mips_default_dma_map_ops = {
.dma_supported = mips_dma_supported
};
-struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
+const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
EXPORT_SYMBOL(mips_dma_map_ops);
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
index 0630693bec2a..0ec9d9da6d51 100644
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ b/arch/mips/netlogic/common/nlm-dma.c
@@ -67,7 +67,7 @@ static void nlm_dma_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_handle);
}
-struct dma_map_ops nlm_swiotlb_dma_ops = {
+const struct dma_map_ops nlm_swiotlb_dma_ops = {
.alloc = nlm_dma_alloc_coherent,
.free = nlm_dma_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 1dcd44757f32..564e3927e005 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -14,9 +14,9 @@
#include <asm/cache.h>
#include <asm/io.h>
-extern struct dma_map_ops mn10300_dma_ops;
+extern const struct dma_map_ops mn10300_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &mn10300_dma_ops;
}
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 4f4b9029f0ea..86108d2496b3 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -121,7 +121,7 @@ static int mn10300_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops mn10300_dma_ops = {
+const struct dma_map_ops mn10300_dma_ops = {
.alloc = mn10300_dma_alloc,
.free = mn10300_dma_free,
.map_page = mn10300_dma_map_page,
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index bec8ac8e6ad2..aa00d839a64b 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -10,9 +10,9 @@
#ifndef _ASM_NIOS2_DMA_MAPPING_H
#define _ASM_NIOS2_DMA_MAPPING_H
-extern struct dma_map_ops nios2_dma_ops;
+extern const struct dma_map_ops nios2_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &nios2_dma_ops;
}
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index f6a5dcf9d682..7040c1adbb5e 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -192,7 +192,7 @@ static void nios2_dma_sync_sg_for_device(struct device *dev,
}
-struct dma_map_ops nios2_dma_ops = {
+const struct dma_map_ops nios2_dma_ops = {
.alloc = nios2_dma_alloc,
.free = nios2_dma_free,
.map_page = nios2_dma_map_page,
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 1f260bccb368..88acbedb4947 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -28,9 +28,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops or1k_dma_map_ops;
+extern const struct dma_map_ops or1k_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &or1k_dma_map_ops;
}
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 906998bac957..b10369b7e31b 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -232,7 +232,7 @@ or1k_sync_single_for_device(struct device *dev,
mtspr(SPR_DCBFR, cl);
}
-struct dma_map_ops or1k_dma_map_ops = {
+const struct dma_map_ops or1k_dma_map_ops = {
.alloc = or1k_dma_alloc,
.free = or1k_dma_free,
.map_page = or1k_map_page,
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 16e024602737..1749073e44fc 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -21,13 +21,13 @@
*/
#ifdef CONFIG_PA11
-extern struct dma_map_ops pcxl_dma_ops;
-extern struct dma_map_ops pcx_dma_ops;
+extern const struct dma_map_ops pcxl_dma_ops;
+extern const struct dma_map_ops pcx_dma_ops;
#endif
-extern struct dma_map_ops *hppa_dma_ops;
+extern const struct dma_map_ops *hppa_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return hppa_dma_ops;
}
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 700e2d2da096..fa78419100c8 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -40,7 +40,7 @@
#include <asm/parisc-device.h>
/* See comments in include/asm-parisc/pci.h */
-struct dma_map_ops *hppa_dma_ops __read_mostly;
+const struct dma_map_ops *hppa_dma_ops __read_mostly;
EXPORT_SYMBOL(hppa_dma_ops);
static struct device root = {
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 697c53543a4d..5f0067a62738 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -572,7 +572,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
flush_kernel_vmap_range(sg_virt(sg), sg->length);
}
-struct dma_map_ops pcxl_dma_ops = {
+const struct dma_map_ops pcxl_dma_ops = {
.dma_supported = pa11_dma_supported,
.alloc = pa11_dma_alloc,
.free = pa11_dma_free,
@@ -608,7 +608,7 @@ static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
return;
}
-struct dma_map_ops pcx_dma_ops = {
+const struct dma_map_ops pcx_dma_ops = {
.dma_supported = pa11_dma_supported,
.alloc = pcx_dma_alloc,
.free = pcx_dma_free,
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 406c2b1ff82d..49cbb0fca233 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -21,7 +21,7 @@ struct iommu_table;
*/
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
/*
* These two used to be a union. However, with the hybrid ops we need
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 84e3f8dd5e4f..2ec3eadf336f 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -76,9 +76,9 @@ static inline unsigned long device_to_mask(struct device *dev)
#ifdef CONFIG_PPC64
extern struct dma_map_ops dma_iommu_ops;
#endif
-extern struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_direct_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
/* We don't handle the NULL dev case for ISA for now. We could
* do it via an out of line call but it is not needed for now. The
@@ -91,7 +91,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return dev->archdata.dma_ops;
}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
}
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index e9bd6cf0212f..93eded8d3843 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -53,8 +53,8 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
}
#ifdef CONFIG_PCI
-extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
-extern struct dma_map_ops *get_pci_dma_ops(void);
+extern void set_pci_dma_ops(const struct dma_map_ops *dma_ops);
+extern const struct dma_map_ops *get_pci_dma_ops(void);
#else /* CONFIG_PCI */
#define set_pci_dma_ops(d)
#define get_pci_dma_ops() NULL
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index de99d6e29430..01d45a5fd00b 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -13,7 +13,7 @@
#include <linux/swiotlb.h>
-extern struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
static inline void dma_mark_clean(void *addr, size_t size) {}
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index c6689f658b50..d0ea7860e02b 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -46,7 +46,7 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
* map_page, and unmap_page on highmem, use normal dma_ops
* for everything else.
*/
-struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops swiotlb_dma_ops = {
.alloc = __dma_direct_alloc_coherent,
.free = __dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 6877e3fa95bb..03b98f1f98ec 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -274,7 +274,7 @@ static inline void dma_direct_sync_single(struct device *dev,
}
#endif
-struct dma_map_ops dma_direct_ops = {
+const struct dma_map_ops dma_direct_ops = {
.alloc = dma_direct_alloc_coherent,
.free = dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
@@ -316,7 +316,7 @@ EXPORT_SYMBOL(dma_set_coherent_mask);
int __dma_set_mask(struct device *dev, u64 dma_mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
if ((dma_ops != NULL) && (dma_ops->set_dma_mask != NULL))
return dma_ops->set_dma_mask(dev, dma_mask);
@@ -344,7 +344,7 @@ EXPORT_SYMBOL(dma_set_mask);
u64 __dma_get_required_mask(struct device *dev)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
if (unlikely(dma_ops == NULL))
return 0;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 74bec5498972..09db4778435c 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -59,14 +59,14 @@ resource_size_t isa_mem_base;
EXPORT_SYMBOL(isa_mem_base);
-static struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
+static const struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
-void set_pci_dma_ops(struct dma_map_ops *dma_ops)
+void set_pci_dma_ops(const struct dma_map_ops *dma_ops)
{
pci_dma_ops = dma_ops;
}
-struct dma_map_ops *get_pci_dma_ops(void)
+const struct dma_map_ops *get_pci_dma_ops(void)
{
return pci_dma_ops;
}
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 7ff51f96a00e..e1413e69e5fe 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -651,7 +651,7 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask)
static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask);
-static struct dma_map_ops dma_iommu_fixed_ops = {
+static const struct dma_map_ops dma_iommu_fixed_ops = {
.alloc = dma_fixed_alloc_coherent,
.free = dma_fixed_free_coherent,
.map_sg = dma_fixed_map_sg,
@@ -1172,7 +1172,7 @@ __setup("iommu_fixed=", setup_iommu_fixed);
static u64 cell_dma_get_required_mask(struct device *dev)
{
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
if (!dev->dma_mask)
return 0;
diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index 73b155fd4481..1c383f38031d 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -115,7 +115,7 @@ static u64 dma_npu_get_required_mask(struct device *dev)
return 0;
}
-static struct dma_map_ops dma_npu_ops = {
+static const struct dma_map_ops dma_npu_ops = {
.map_page = dma_npu_map_page,
.map_sg = dma_npu_map_sg,
.alloc = dma_npu_alloc,
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 8af1c15aef85..c81450d98794 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -701,7 +701,7 @@ static u64 ps3_dma_get_required_mask(struct device *_dev)
return DMA_BIT_MASK(32);
}
-static struct dma_map_ops ps3_sb_dma_ops = {
+static const struct dma_map_ops ps3_sb_dma_ops = {
.alloc = ps3_alloc_coherent,
.free = ps3_free_coherent,
.map_sg = ps3_sb_map_sg,
@@ -712,7 +712,7 @@ static struct dma_map_ops ps3_sb_dma_ops = {
.unmap_page = ps3_unmap_page,
};
-static struct dma_map_ops ps3_ioc0_dma_ops = {
+static const struct dma_map_ops ps3_ioc0_dma_ops = {
.alloc = ps3_alloc_coherent,
.free = ps3_free_coherent,
.map_sg = ps3_ioc0_map_sg,
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 614c28537141..2e36a0b8944a 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -136,7 +136,7 @@ static u64 ibmebus_dma_get_required_mask(struct device *dev)
return DMA_BIT_MASK(64);
}
-static struct dma_map_ops ibmebus_dma_ops = {
+static const struct dma_map_ops ibmebus_dma_ops = {
.alloc = ibmebus_alloc_coherent,
.free = ibmebus_free_coherent,
.map_sg = ibmebus_map_sg,
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 2c8fb3ec989e..720493932486 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -615,7 +615,7 @@ static u64 vio_dma_get_required_mask(struct device *dev)
return dma_iommu_ops.get_required_mask(dev);
}
-static struct dma_map_ops vio_dma_mapping_ops = {
+static const struct dma_map_ops vio_dma_mapping_ops = {
.alloc = vio_dma_iommu_alloc_coherent,
.free = vio_dma_iommu_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 4a9f35e0973f..7955a9799466 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,7 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index ffaba07f50ab..2776d205b1ff 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -10,9 +10,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t) 0x0)
-extern struct dma_map_ops s390_pci_dma_ops;
+extern const struct dma_map_ops s390_pci_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 1d7a9c71944a..9081a57fa340 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -650,7 +650,7 @@ static int __init dma_debug_do_init(void)
}
fs_initcall(dma_debug_do_init);
-struct dma_map_ops s390_pci_dma_ops = {
+const struct dma_map_ops s390_pci_dma_ops = {
.alloc = s390_dma_alloc,
.free = s390_dma_free,
.map_sg = s390_dma_map_sg,
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 0052ad40e86d..a7382c34c241 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -1,10 +1,10 @@
#ifndef __ASM_SH_DMA_MAPPING_H
#define __ASM_SH_DMA_MAPPING_H
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void);
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 47fee3b6e29c..d24c707b2181 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -65,7 +65,7 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg,
}
#endif
-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
.alloc = dma_generic_alloc_coherent,
.free = dma_generic_free_coherent,
.map_page = nommu_map_page,
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 92b6976fde59..d1275adfa0ef 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -22,7 +22,7 @@
#define PREALLOC_DMA_DEBUG_ENTRIES 4096
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
static int __init dma_init(void)
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 1180ae254154..3d2babc0c4c6 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -18,13 +18,13 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
*/
}
-extern struct dma_map_ops *dma_ops;
-extern struct dma_map_ops *leon_dma_ops;
-extern struct dma_map_ops pci32_dma_ops;
+extern const struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *leon_dma_ops;
+extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 9df997995f6b..c63ba99ca551 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -741,7 +741,7 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev,
spin_unlock_irqrestore(&iommu->lock, flags);
}
-static struct dma_map_ops sun4u_dma_ops = {
+static const struct dma_map_ops sun4u_dma_ops = {
.alloc = dma_4u_alloc_coherent,
.free = dma_4u_free_coherent,
.map_page = dma_4u_map_page,
@@ -752,7 +752,7 @@ static struct dma_map_ops sun4u_dma_ops = {
.sync_sg_for_cpu = dma_4u_sync_sg_for_cpu,
};
-struct dma_map_ops *dma_ops = &sun4u_dma_ops;
+const struct dma_map_ops *dma_ops = &sun4u_dma_ops;
EXPORT_SYMBOL(dma_ops);
int dma_supported(struct device *dev, u64 device_mask)
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 6ffaec44931a..cf20033a1458 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -401,7 +401,7 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
BUG();
}
-static struct dma_map_ops sbus_dma_ops = {
+static const struct dma_map_ops sbus_dma_ops = {
.alloc = sbus_alloc_coherent,
.free = sbus_free_coherent,
.map_page = sbus_map_page,
@@ -637,7 +637,7 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *
}
}
-struct dma_map_ops pci32_dma_ops = {
+const struct dma_map_ops pci32_dma_ops = {
.alloc = pci32_alloc_coherent,
.free = pci32_free_coherent,
.map_page = pci32_map_page,
@@ -652,10 +652,10 @@ struct dma_map_ops pci32_dma_ops = {
EXPORT_SYMBOL(pci32_dma_ops);
/* leon re-uses pci32_dma_ops */
-struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
+const struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
EXPORT_SYMBOL(leon_dma_ops);
-struct dma_map_ops *dma_ops = &sbus_dma_ops;
+const struct dma_map_ops *dma_ops = &sbus_dma_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index f4daccd12bf5..68bec7c97cb8 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -669,7 +669,7 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist,
local_irq_restore(flags);
}
-static struct dma_map_ops sun4v_dma_ops = {
+static const struct dma_map_ops sun4v_dma_ops = {
.alloc = dma_4v_alloc_coherent,
.free = dma_4v_free_coherent,
.map_page = dma_4v_map_page,
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 6ab8bf146d4c..25f23ac7d361 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -18,7 +18,7 @@
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
/* Offset of the DMA address from the PA. */
dma_addr_t dma_offset;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 01ceb4a895b0..4a06cc75b856 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -24,12 +24,12 @@
#define ARCH_HAS_DMA_GET_REQUIRED_MASK
#endif
-extern struct dma_map_ops *tile_dma_map_ops;
-extern struct dma_map_ops *gx_pci_dma_map_ops;
-extern struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-extern struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
+extern const struct dma_map_ops *tile_dma_map_ops;
+extern const struct dma_map_ops *gx_pci_dma_map_ops;
+extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
+extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
@@ -59,7 +59,7 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
}
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 24e0f8c21f2f..569bb6dd154a 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -329,7 +329,7 @@ tile_dma_supported(struct device *dev, u64 mask)
return 1;
}
-static struct dma_map_ops tile_default_dma_map_ops = {
+static const struct dma_map_ops tile_default_dma_map_ops = {
.alloc = tile_dma_alloc_coherent,
.free = tile_dma_free_coherent,
.map_page = tile_dma_map_page,
@@ -344,7 +344,7 @@ static struct dma_map_ops tile_default_dma_map_ops = {
.dma_supported = tile_dma_supported
};
-struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
+const struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
EXPORT_SYMBOL(tile_dma_map_ops);
/* Generic PCI DMA mapping functions */
@@ -516,7 +516,7 @@ tile_pci_dma_supported(struct device *dev, u64 mask)
return 1;
}
-static struct dma_map_ops tile_pci_default_dma_map_ops = {
+static const struct dma_map_ops tile_pci_default_dma_map_ops = {
.alloc = tile_pci_dma_alloc_coherent,
.free = tile_pci_dma_free_coherent,
.map_page = tile_pci_dma_map_page,
@@ -531,7 +531,7 @@ static struct dma_map_ops tile_pci_default_dma_map_ops = {
.dma_supported = tile_pci_dma_supported
};
-struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
+const struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
EXPORT_SYMBOL(gx_pci_dma_map_ops);
/* PCI DMA mapping functions for legacy PCI devices */
@@ -552,7 +552,7 @@ static void tile_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-static struct dma_map_ops pci_swiotlb_dma_ops = {
+static const struct dma_map_ops pci_swiotlb_dma_ops = {
.alloc = tile_swiotlb_alloc_coherent,
.free = tile_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
@@ -567,7 +567,7 @@ static struct dma_map_ops pci_swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
};
-static struct dma_map_ops pci_hybrid_dma_ops = {
+static const struct dma_map_ops pci_hybrid_dma_ops = {
.alloc = tile_swiotlb_alloc_coherent,
.free = tile_swiotlb_free_coherent,
.map_page = tile_pci_dma_map_page,
@@ -582,18 +582,18 @@ static struct dma_map_ops pci_hybrid_dma_ops = {
.dma_supported = tile_pci_dma_supported
};
-struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
-struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
+const struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
#else
-struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
+const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
#endif
EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops);
EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops);
int dma_set_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
/*
* For PCI devices with 64-bit DMA addressing capability, promote
@@ -623,7 +623,7 @@ EXPORT_SYMBOL(dma_set_mask);
#ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK
int dma_set_coherent_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
/*
* For PCI devices with 64-bit DMA addressing capability, promote
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 4749854afd03..14d7729c7b73 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -21,9 +21,9 @@
#include <asm/memory.h>
#include <asm/cacheflush.h>
-extern struct dma_map_ops swiotlb_dma_map_ops;
+extern const struct dma_map_ops swiotlb_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &swiotlb_dma_map_ops;
}
diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c
index 3e9f6489ba38..525413d6690e 100644
--- a/arch/unicore32/mm/dma-swiotlb.c
+++ b/arch/unicore32/mm/dma-swiotlb.c
@@ -31,7 +31,7 @@ static void unicore_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-struct dma_map_ops swiotlb_dma_map_ops = {
+const struct dma_map_ops swiotlb_dma_map_ops = {
.alloc = unicore_swiotlb_alloc_coherent,
.free = unicore_swiotlb_free_coherent,
.map_sg = swiotlb_map_sg_attrs,
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 684ed6c3aa67..b2d0b4ced7e3 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -3,7 +3,7 @@
struct dev_archdata {
#ifdef CONFIG_X86_DEV_DMA_OPS
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#endif
#if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
void *iommu; /* hook for IOMMU specific extension */
@@ -13,7 +13,7 @@ struct dev_archdata {
#if defined(CONFIG_X86_DEV_DMA_OPS) && defined(CONFIG_PCI_DOMAINS)
struct dma_domain {
struct list_head node;
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
int domain_nr;
};
void add_dma_domain(struct dma_domain *domain);
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 44461626830e..5e4772886a1e 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -25,9 +25,9 @@ extern int iommu_merge;
extern struct device x86_dma_fallback_dev;
extern int panic_on_overflow;
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 345c99cef152..793869879464 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -1,7 +1,7 @@
#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H
-extern struct dma_map_ops nommu_dma_ops;
+extern const struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_pass_through;
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 63ff468a7986..82dfe32faaf4 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -695,7 +695,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info)
return -1;
}
-static struct dma_map_ops gart_dma_ops = {
+static const struct dma_map_ops gart_dma_ops = {
.map_sg = gart_map_sg,
.unmap_sg = gart_unmap_sg,
.map_page = gart_map_page,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 5d400ba1349d..17f180148c80 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -478,7 +478,7 @@ static void calgary_free_coherent(struct device *dev, size_t size,
free_pages((unsigned long)vaddr, get_order(size));
}
-static struct dma_map_ops calgary_dma_ops = {
+static const struct dma_map_ops calgary_dma_ops = {
.alloc = calgary_alloc_coherent,
.free = calgary_free_coherent,
.map_sg = calgary_map_sg,
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index d30c37750765..76f4c039baae 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -17,7 +17,7 @@
static int forbid_dac __read_mostly;
-struct dma_map_ops *dma_ops = &nommu_dma_ops;
+const struct dma_map_ops *dma_ops = &nommu_dma_ops;
EXPORT_SYMBOL(dma_ops);
static int iommu_sac_force __read_mostly;
@@ -214,7 +214,7 @@ early_param("iommu", iommu_setup);
int dma_supported(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
#ifdef CONFIG_PCI
if (mask > 0xffffffff && forbid_dac > 0) {
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 00e71ce396a8..a88952ef371c 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -88,7 +88,7 @@ static void nommu_sync_sg_for_device(struct device *dev,
flush_write_buffers();
}
-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
.alloc = dma_generic_alloc_coherent,
.free = dma_generic_free_coherent,
.map_sg = nommu_map_sg,
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 410efb2c7b80..1e23577e17cf 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -45,7 +45,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
}
-static struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
.alloc = x86_swiotlb_alloc_coherent,
.free = x86_swiotlb_free_coherent,
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 052c1cb76305..aa3828823170 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -179,7 +179,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
}
/* We have our own dma_ops: the same as swiotlb but from alloc (above) */
-static struct dma_map_ops sta2x11_dma_ops = {
+static const struct dma_map_ops sta2x11_dma_ops = {
.alloc = sta2x11_swiotlb_alloc_coherent,
.free = x86_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c
index a0b36a9d5df1..42b08f8fc2ca 100644
--- a/arch/x86/xen/pci-swiotlb-xen.c
+++ b/arch/x86/xen/pci-swiotlb-xen.c
@@ -18,7 +18,7 @@
int xen_swiotlb __read_mostly;
-static struct dma_map_ops xen_swiotlb_dma_ops = {
+static const struct dma_map_ops xen_swiotlb_dma_ops = {
.alloc = xen_swiotlb_alloc_coherent,
.free = xen_swiotlb_free_coherent,
.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index fe1f5c878493..a77d45d39f35 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -10,7 +10,7 @@ struct dma_map_ops;
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 3fc1170a6488..50d23106cce0 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -18,9 +18,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops xtensa_dma_map_ops;
+extern const struct dma_map_ops xtensa_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 70e362e6038e..ecec5265a66d 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -249,7 +249,7 @@ int xtensa_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
return 0;
}
-struct dma_map_ops xtensa_dma_map_ops = {
+const struct dma_map_ops xtensa_dma_map_ops = {
.alloc = xtensa_dma_alloc,
.free = xtensa_dma_free,
.map_page = xtensa_map_page,
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3ef0f42984f2..3703fb9db419 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -117,7 +117,7 @@ static const struct iommu_ops amd_iommu_ops;
static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
int amd_iommu_max_glx_val = -1;
-static struct dma_map_ops amd_iommu_dma_ops;
+static const struct dma_map_ops amd_iommu_dma_ops;
/*
* This struct contains device specific data for the IOMMU
@@ -2728,7 +2728,7 @@ static int amd_iommu_dma_supported(struct device *dev, u64 mask)
return check_device(dev);
}
-static struct dma_map_ops amd_iommu_dma_ops = {
+static const struct dma_map_ops amd_iommu_dma_ops = {
.alloc = alloc_coherent,
.free = free_coherent,
.map_page = map_page,
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index be37890abb93..c4b27a25662a 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -143,7 +143,7 @@ static void mbus_release_dev(struct device *d)
}
struct mbus_device *
-mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct mbus_hw_ops *hw_ops, int index,
void __iomem *mmio_va)
{
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index ff6e01c25810..e5d377e97c86 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -138,7 +138,7 @@ static void scif_release_dev(struct device *d)
}
struct scif_hw_dev *
-scif_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct scif_hw_ops *hw_ops, u8 dnode, u8 snode,
struct mic_mw *mmio, struct mic_mw *aper, void *dp,
void __iomem *rdp, struct dma_chan **chan, int num_chan,
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
index 94f29ac608b6..ff59568219ad 100644
--- a/drivers/misc/mic/bus/scif_bus.h
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -113,7 +113,7 @@ int scif_register_driver(struct scif_driver *driver);
void scif_unregister_driver(struct scif_driver *driver);
struct scif_hw_dev *
scif_register_device(struct device *pdev, int id,
- struct dma_map_ops *dma_ops,
+ const struct dma_map_ops *dma_ops,
struct scif_hw_ops *hw_ops, u8 dnode, u8 snode,
struct mic_mw *mmio, struct mic_mw *aper,
void *dp, void __iomem *rdp,
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index 303da222f5b6..b59551f5db65 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -154,7 +154,7 @@ vop_register_device(struct device *pdev, int id,
vdev->dev.parent = pdev;
vdev->id.device = id;
vdev->id.vendor = VOP_DEV_ANY_ID;
- vdev->dev.archdata.dma_ops = (struct dma_map_ops *)dma_ops;
+ vdev->dev.archdata.dma_ops = (const struct dma_map_ops *)dma_ops;
vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask;
dma_set_mask(&vdev->dev, DMA_BIT_MASK(64));
vdev->dev.release = vop_release_dev;
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index 9599d732aff3..c327985c9523 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -245,7 +245,7 @@ static void __mic_dma_unmap_sg(struct device *dev,
dma_unmap_sg(&mdev->pdev->dev, sg, nents, dir);
}
-static struct dma_map_ops __mic_dma_ops = {
+static const struct dma_map_ops __mic_dma_ops = {
.alloc = __mic_dma_alloc,
.free = __mic_dma_free,
.map_page = __mic_dma_map_page,
@@ -344,7 +344,7 @@ mic_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
mic_unmap_single(mdev, dma_addr, size);
}
-static struct dma_map_ops mic_dma_ops = {
+static const struct dma_map_ops mic_dma_ops = {
.map_page = mic_dma_map_page,
.unmap_page = mic_dma_unmap_page,
};
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 553ef8a5d588..aeb073b5fe16 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1011,7 +1011,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
}
-static struct dma_map_ops ccio_ops = {
+static const struct dma_map_ops ccio_ops = {
.dma_supported = ccio_dma_supported,
.alloc = ccio_alloc,
.free = ccio_free,
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 151b86b6d2e2..33385e574433 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1069,7 +1069,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
}
-static struct dma_map_ops sba_ops = {
+static const struct dma_map_ops sba_ops = {
.dma_supported = sba_dma_supported,
.alloc = sba_alloc,
.free = sba_free,
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c
index 18ef1a93c10a..e27ad2a3bd33 100644
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/host/vmd.c
@@ -282,7 +282,7 @@ static struct device *to_vmd_dev(struct device *dev)
return &vmd->dev->dev;
}
-static struct dma_map_ops *vmd_dma_ops(struct device *dev)
+static const struct dma_map_ops *vmd_dma_ops(struct device *dev)
{
return get_dma_ops(to_vmd_dev(dev));
}
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 10c5a17b1f51..f1da68b82c63 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -127,7 +127,7 @@ struct dma_map_ops {
int is_phys;
};
-extern struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_noop_ops;
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
@@ -170,8 +170,8 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
* dma dependent code. Code that depends on the dma-mapping
* API needs to set 'depends on HAS_DMA' in its Kconfig
*/
-extern struct dma_map_ops bad_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+extern const struct dma_map_ops bad_dma_ops;
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &bad_dma_ops;
}
@@ -182,7 +182,7 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
kmemcheck_mark_initialized(ptr, size);
@@ -201,7 +201,7 @@ static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t addr,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
@@ -217,7 +217,7 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
int i, ents;
struct scatterlist *s;
@@ -235,7 +235,7 @@ static inline void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg
int nents, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
debug_dma_unmap_sg(dev, sg, nents, dir);
@@ -249,7 +249,7 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
kmemcheck_mark_initialized(page_address(page) + offset, size);
@@ -265,7 +265,7 @@ static inline void dma_unmap_page_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
@@ -279,7 +279,7 @@ static inline dma_addr_t dma_map_resource(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
BUG_ON(!valid_dma_direction(dir));
@@ -300,7 +300,7 @@ static inline void dma_unmap_resource(struct device *dev, dma_addr_t addr,
size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_resource)
@@ -312,7 +312,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
size_t size,
enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_cpu)
@@ -324,7 +324,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
dma_addr_t addr, size_t size,
enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_device)
@@ -364,7 +364,7 @@ static inline void
dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_cpu)
@@ -376,7 +376,7 @@ static inline void
dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_device)
@@ -421,7 +421,7 @@ static inline int
dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr,
dma_addr_t dma_addr, size_t size, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
if (ops->mmap)
return ops->mmap(dev, vma, cpu_addr, dma_addr, size, attrs);
@@ -439,7 +439,7 @@ dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr,
dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
if (ops->get_sgtable)
return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
@@ -457,7 +457,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
void *cpu_addr;
BUG_ON(!ops);
@@ -479,7 +479,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_handle,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
WARN_ON(irqs_disabled());
@@ -537,7 +537,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
#ifndef HAVE_ARCH_DMA_SUPPORTED
static inline int dma_supported(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
if (!ops)
return 0;
@@ -550,7 +550,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
#ifndef HAVE_ARCH_DMA_SET_MASK
static inline int dma_set_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, mask);
diff --git a/include/linux/mic_bus.h b/include/linux/mic_bus.h
index 27d7c95fd0da..504d54c71bdb 100644
--- a/include/linux/mic_bus.h
+++ b/include/linux/mic_bus.h
@@ -90,7 +90,7 @@ struct mbus_hw_ops {
};
struct mbus_device *
-mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct mbus_hw_ops *hw_ops, int index,
void __iomem *mmio_va);
void mbus_unregister_device(struct mbus_device *mbdev);
diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h
index 95251512e2c4..44b587b49904 100644
--- a/include/xen/arm/hypervisor.h
+++ b/include/xen/arm/hypervisor.h
@@ -18,7 +18,7 @@ static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
return PARAVIRT_LAZY_NONE;
}
-extern struct dma_map_ops *xen_dma_ops;
+extern const struct dma_map_ops *xen_dma_ops;
#ifdef CONFIG_XEN
void __init xen_early_init(void);
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index 3d766e78fbe2..65e49dd35b7b 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -64,7 +64,7 @@ static int dma_noop_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops dma_noop_ops = {
+const struct dma_map_ops dma_noop_ops = {
.alloc = dma_noop_alloc,
.free = dma_noop_free,
.map_page = dma_noop_map_page,
--
2.11.0
^ permalink raw reply related [flat|nested] 18+ messages in thread
* [PATCH 1/9] treewide: Constify most dma_map_ops structures
2017-01-11 0:56 ` [PATCH 1/9] treewide: Constify most dma_map_ops structures Bart Van Assche
@ 2017-01-11 0:56 ` Bart Van Assche
0 siblings, 0 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 0:56 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma, linux-kernel, Aurelien Jacquiot, Catalin Marinas,
Chris Zankel, David Howells, David S . Miller, Fenghua Yu,
Geert Uytterhoeven, Geoff Levand, Guan Xuetao, H . Peter Anvin,
Haavard Skinnemoen, Hans-Christian Egtvedt, Helge Deller,
Ingo Molnar, James E . J . Bottomley, Jesper Nilsson,
Joerg Roedel, Jon Mason, Jonas Bonn, Ley Foon Tan, Mark Salter,
Max Filippov, Mikael Starvik, Muli Ben-Yehuda, Rich Felker,
Russell King, Stafford Horne, Stefan Kristiansson,
Stefano Stabellini, Thomas Gleixner, Tony Luck, Will Deacon, x86,
Yoshinori Sato, adi-buildroot-devel, iommu, linux-alpha,
linux-am33-list, linux-arm-kernel, linux-c6x-dev,
linux-cris-kernel, linux-hexagon, linux-ia64, linux-m68k,
linux-metag, linux-mips, linux-parisc, linux-pci, linux-s390,
linux-sh, linux-snps-arc, linux-xtensa, linuxppc-dev, nios2-dev,
openrisc, sparclinux, uclinux-h8-devel, xen-devel
Most dma_map_ops structures are never modified. Constify these
structures such that these can be write-protected. This patch
has been generated as follows:
git grep -l 'struct dma_map_ops' |
xargs -d\\n sed -i \
-e 's/struct dma_map_ops/const struct dma_map_ops/g' \
-e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \
-e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \
-e 's/const const struct dma_map_ops /const struct dma_map_ops /g';
sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \
$(git grep -l 'struct dma_map_ops intel_dma_ops');
sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \
$(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc);
sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \
-e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \
-e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \
drivers/pci/host/*.c
sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c
sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: x86@kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: iommu@lists.linux-foundation.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: sparclinux@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: xen-devel@lists.xenproject.org
---
arch/alpha/include/asm/dma-mapping.h | 4 +--
arch/alpha/kernel/pci-noop.c | 4 +--
arch/alpha/kernel/pci_iommu.c | 4 +--
arch/arc/include/asm/dma-mapping.h | 4 +--
arch/arc/mm/dma.c | 2 +-
arch/arm/common/dmabounce.c | 2 +-
arch/arm/include/asm/device.h | 2 +-
arch/arm/include/asm/dma-mapping.h | 10 +++---
arch/arm/mm/dma-mapping.c | 22 ++++++------
arch/arm/xen/mm.c | 4 +--
arch/arm64/include/asm/device.h | 2 +-
arch/arm64/include/asm/dma-mapping.h | 6 ++--
arch/arm64/mm/dma-mapping.c | 6 ++--
arch/avr32/include/asm/dma-mapping.h | 4 +--
arch/avr32/mm/dma-coherent.c | 2 +-
arch/blackfin/include/asm/dma-mapping.h | 4 +--
arch/blackfin/kernel/dma-mapping.c | 2 +-
arch/c6x/include/asm/dma-mapping.h | 4 +--
arch/c6x/kernel/dma.c | 2 +-
arch/cris/arch-v32/drivers/pci/dma.c | 2 +-
arch/cris/include/asm/dma-mapping.h | 6 ++--
arch/frv/include/asm/dma-mapping.h | 4 +--
arch/frv/mb93090-mb00/pci-dma-nommu.c | 2 +-
arch/frv/mb93090-mb00/pci-dma.c | 2 +-
arch/h8300/include/asm/dma-mapping.h | 4 +--
arch/h8300/kernel/dma.c | 2 +-
arch/hexagon/include/asm/dma-mapping.h | 4 +--
arch/hexagon/kernel/dma.c | 4 +--
arch/ia64/hp/common/hwsw_iommu.c | 4 +--
arch/ia64/hp/common/sba_iommu.c | 4 +--
arch/ia64/include/asm/dma-mapping.h | 2 +-
arch/ia64/include/asm/machvec.h | 4 +--
arch/ia64/kernel/dma-mapping.c | 4 +--
arch/ia64/kernel/pci-dma.c | 10 +++---
arch/ia64/kernel/pci-swiotlb.c | 2 +-
arch/m32r/include/asm/device.h | 2 +-
arch/m32r/include/asm/dma-mapping.h | 2 +-
arch/m68k/include/asm/dma-mapping.h | 4 +--
arch/m68k/kernel/dma.c | 2 +-
arch/metag/include/asm/dma-mapping.h | 4 +--
arch/metag/kernel/dma.c | 2 +-
arch/microblaze/include/asm/dma-mapping.h | 4 +--
arch/microblaze/kernel/dma.c | 2 +-
arch/mips/cavium-octeon/dma-octeon.c | 4 +--
arch/mips/include/asm/device.h | 2 +-
arch/mips/include/asm/dma-mapping.h | 4 +--
.../include/asm/mach-cavium-octeon/dma-coherence.h | 2 +-
arch/mips/include/asm/netlogic/common.h | 2 +-
arch/mips/loongson64/common/dma-swiotlb.c | 2 +-
arch/mips/mm/dma-default.c | 4 +--
arch/mips/netlogic/common/nlm-dma.c | 2 +-
arch/mn10300/include/asm/dma-mapping.h | 4 +--
arch/mn10300/mm/dma-alloc.c | 2 +-
arch/nios2/include/asm/dma-mapping.h | 4 +--
arch/nios2/mm/dma-mapping.c | 2 +-
arch/openrisc/include/asm/dma-mapping.h | 4 +--
arch/openrisc/kernel/dma.c | 2 +-
arch/parisc/include/asm/dma-mapping.h | 8 ++---
arch/parisc/kernel/drivers.c | 2 +-
arch/parisc/kernel/pci-dma.c | 4 +--
arch/powerpc/include/asm/device.h | 2 +-
arch/powerpc/include/asm/dma-mapping.h | 6 ++--
arch/powerpc/include/asm/pci.h | 4 +--
arch/powerpc/include/asm/swiotlb.h | 2 +-
arch/powerpc/kernel/dma-swiotlb.c | 2 +-
arch/powerpc/kernel/dma.c | 6 ++--
arch/powerpc/kernel/pci-common.c | 6 ++--
arch/powerpc/platforms/cell/iommu.c | 4 +--
arch/powerpc/platforms/powernv/npu-dma.c | 2 +-
arch/powerpc/platforms/ps3/system-bus.c | 4 +--
arch/powerpc/platforms/pseries/ibmebus.c | 2 +-
arch/powerpc/platforms/pseries/vio.c | 2 +-
arch/s390/include/asm/device.h | 2 +-
arch/s390/include/asm/dma-mapping.h | 4 +--
arch/s390/pci/pci_dma.c | 2 +-
arch/sh/include/asm/dma-mapping.h | 4 +--
arch/sh/kernel/dma-nommu.c | 2 +-
arch/sh/mm/consistent.c | 2 +-
arch/sparc/include/asm/dma-mapping.h | 8 ++---
arch/sparc/kernel/iommu.c | 4 +--
arch/sparc/kernel/ioport.c | 8 ++---
arch/sparc/kernel/pci_sun4v.c | 2 +-
arch/tile/include/asm/device.h | 2 +-
arch/tile/include/asm/dma-mapping.h | 12 +++----
arch/tile/kernel/pci-dma.c | 24 ++++++-------
arch/unicore32/include/asm/dma-mapping.h | 4 +--
arch/unicore32/mm/dma-swiotlb.c | 2 +-
arch/x86/include/asm/device.h | 4 +--
arch/x86/include/asm/dma-mapping.h | 4 +--
arch/x86/include/asm/iommu.h | 2 +-
arch/x86/kernel/amd_gart_64.c | 2 +-
arch/x86/kernel/pci-calgary_64.c | 2 +-
arch/x86/kernel/pci-dma.c | 4 +--
arch/x86/kernel/pci-nommu.c | 2 +-
arch/x86/kernel/pci-swiotlb.c | 2 +-
arch/x86/pci/sta2x11-fixup.c | 2 +-
arch/x86/xen/pci-swiotlb-xen.c | 2 +-
arch/xtensa/include/asm/device.h | 2 +-
arch/xtensa/include/asm/dma-mapping.h | 4 +--
arch/xtensa/kernel/pci-dma.c | 2 +-
drivers/iommu/amd_iommu.c | 4 +--
drivers/misc/mic/bus/mic_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.h | 2 +-
drivers/misc/mic/bus/vop_bus.c | 2 +-
drivers/misc/mic/host/mic_boot.c | 4 +--
drivers/parisc/ccio-dma.c | 2 +-
drivers/parisc/sba_iommu.c | 2 +-
drivers/pci/host/vmd.c | 2 +-
include/linux/dma-mapping.h | 42 +++++++++++-----------
include/linux/mic_bus.h | 2 +-
include/xen/arm/hypervisor.h | 2 +-
lib/dma-noop.c | 2 +-
113 files changed, 227 insertions(+), 227 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index c63b6ac19ee5..d3480562411d 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _ALPHA_DMA_MAPPING_H
#define _ALPHA_DMA_MAPPING_H
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index bb152e21e5ae..ffbdb3fb672f 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -128,7 +128,7 @@ static int alpha_noop_supported(struct device *dev, u64 mask)
return mask < 0x00ffffffUL ? 0 : 1;
}
-struct dma_map_ops alpha_noop_ops = {
+const struct dma_map_ops alpha_noop_ops = {
.alloc = alpha_noop_alloc_coherent,
.free = dma_noop_free_coherent,
.map_page = dma_noop_map_page,
@@ -137,5 +137,5 @@ struct dma_map_ops alpha_noop_ops = {
.dma_supported = alpha_noop_supported,
};
-struct dma_map_ops *dma_ops = &alpha_noop_ops;
+const struct dma_map_ops *dma_ops = &alpha_noop_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 451fc9cdd323..7fd2329038a3 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -939,7 +939,7 @@ static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr)
return dma_addr == 0;
}
-struct dma_map_ops alpha_pci_ops = {
+const struct dma_map_ops alpha_pci_ops = {
.alloc = alpha_pci_alloc_coherent,
.free = alpha_pci_free_coherent,
.map_page = alpha_pci_map_page,
@@ -950,5 +950,5 @@ struct dma_map_ops alpha_pci_ops = {
.dma_supported = alpha_pci_supported,
};
-struct dma_map_ops *dma_ops = &alpha_pci_ops;
+const struct dma_map_ops *dma_ops = &alpha_pci_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 266f11c9bd59..fdff3aa60052 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -18,9 +18,9 @@
#include <plat/dma.h>
#endif
-extern struct dma_map_ops arc_dma_ops;
+extern const struct dma_map_ops arc_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &arc_dma_ops;
}
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 08450a1a5b5f..2a07e6ecafbd 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -218,7 +218,7 @@ static int arc_dma_supported(struct device *dev, u64 dma_mask)
return dma_mask == DMA_BIT_MASK(32);
}
-struct dma_map_ops arc_dma_ops = {
+const struct dma_map_ops arc_dma_ops = {
.alloc = arc_dma_alloc,
.free = arc_dma_free,
.mmap = arc_dma_mmap,
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 75055df1cda3..9b1b7be2ec0e 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -452,7 +452,7 @@ static int dmabounce_set_mask(struct device *dev, u64 dma_mask)
return arm_dma_ops.set_dma_mask(dev, dma_mask);
}
-static struct dma_map_ops dmabounce_ops = {
+static const struct dma_map_ops dmabounce_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
.mmap = arm_dma_mmap,
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index 4111592f0130..d8a572f9c187 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,7 @@
#define ASMARM_DEVICE_H
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMABOUNCE
struct dmabounce_device_info *dmabounce;
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index bf02dbd9ccda..1aabd781306f 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -13,17 +13,17 @@
#include <asm/xen/hypervisor.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops arm_dma_ops;
-extern struct dma_map_ops arm_coherent_dma_ops;
+extern const struct dma_map_ops arm_dma_ops;
+extern const struct dma_map_ops arm_coherent_dma_ops;
-static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
return &arm_dma_ops;
}
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (xen_initial_domain())
return xen_dma_ops;
@@ -31,7 +31,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return __generic_dma_ops(dev);
}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
BUG_ON(!dev);
dev->archdata.dma_ops = ops;
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ab7710002ba6..d26fe1a35687 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -180,7 +180,7 @@ static void arm_dma_sync_single_for_device(struct device *dev,
__dma_page_cpu_to_dev(page, offset, size, dir);
}
-struct dma_map_ops arm_dma_ops = {
+const struct dma_map_ops arm_dma_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
.mmap = arm_dma_mmap,
@@ -204,7 +204,7 @@ static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs);
-struct dma_map_ops arm_coherent_dma_ops = {
+const struct dma_map_ops arm_coherent_dma_ops = {
.alloc = arm_coherent_dma_alloc,
.free = arm_coherent_dma_free,
.mmap = arm_coherent_dma_mmap,
@@ -1067,7 +1067,7 @@ static void __dma_page_dev_to_cpu(struct page *page, unsigned long off,
int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i, j;
@@ -1101,7 +1101,7 @@ int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -1120,7 +1120,7 @@ void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -1139,7 +1139,7 @@ void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -2099,7 +2099,7 @@ static void arm_iommu_sync_single_for_device(struct device *dev,
__dma_page_cpu_to_dev(page, offset, size, dir);
}
-struct dma_map_ops iommu_ops = {
+const struct dma_map_ops iommu_ops = {
.alloc = arm_iommu_alloc_attrs,
.free = arm_iommu_free_attrs,
.mmap = arm_iommu_mmap_attrs,
@@ -2119,7 +2119,7 @@ struct dma_map_ops iommu_ops = {
.unmap_resource = arm_iommu_unmap_resource,
};
-struct dma_map_ops iommu_coherent_ops = {
+const struct dma_map_ops iommu_coherent_ops = {
.alloc = arm_coherent_iommu_alloc_attrs,
.free = arm_coherent_iommu_free_attrs,
.mmap = arm_coherent_iommu_mmap_attrs,
@@ -2319,7 +2319,7 @@ void arm_iommu_detach_device(struct device *dev)
}
EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
-static struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
+static const struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
{
return coherent ? &iommu_coherent_ops : &iommu_ops;
}
@@ -2374,7 +2374,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev) { }
#endif /* CONFIG_ARM_DMA_USE_IOMMU */
-static struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
+static const struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
{
return coherent ? &arm_coherent_dma_ops : &arm_dma_ops;
}
@@ -2382,7 +2382,7 @@ static struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)
{
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
dev->archdata.dma_coherent = coherent;
if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index bd62d94f8ac5..ce18c91b50a1 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -182,10 +182,10 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
}
EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region);
-struct dma_map_ops *xen_dma_ops;
+const struct dma_map_ops *xen_dma_ops;
EXPORT_SYMBOL(xen_dma_ops);
-static struct dma_map_ops xen_swiotlb_dma_ops = {
+static const struct dma_map_ops xen_swiotlb_dma_ops = {
.alloc = xen_swiotlb_alloc_coherent,
.free = xen_swiotlb_free_coherent,
.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 243ef256b8c9..00c678cc31e1 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,7 @@
#define __ASM_DEVICE_H
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index ccea82c2b089..1fedb43be712 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -25,9 +25,9 @@
#include <asm/xen/hypervisor.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0)
-extern struct dma_map_ops dummy_dma_ops;
+extern const struct dma_map_ops dummy_dma_ops;
-static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
@@ -39,7 +39,7 @@ static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops;
}
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (xen_initial_domain())
return xen_dma_ops;
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index e04082700bb1..bcef6368d48f 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -352,7 +352,7 @@ static int __swiotlb_dma_supported(struct device *hwdev, u64 mask)
return 1;
}
-static struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops swiotlb_dma_ops = {
.alloc = __dma_alloc,
.free = __dma_free,
.mmap = __swiotlb_mmap,
@@ -505,7 +505,7 @@ static int __dummy_dma_supported(struct device *hwdev, u64 mask)
return 0;
}
-struct dma_map_ops dummy_dma_ops = {
+const struct dma_map_ops dummy_dma_ops = {
.alloc = __dummy_alloc,
.free = __dummy_free,
.mmap = __dummy_mmap,
@@ -784,7 +784,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
}
-static struct dma_map_ops iommu_dma_ops = {
+static const struct dma_map_ops iommu_dma_ops = {
.alloc = __iommu_alloc_attrs,
.free = __iommu_free_attrs,
.mmap = __iommu_mmap_attrs,
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index 1115f2a645d1..b2b43c0e0774 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -4,9 +4,9 @@
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
int direction);
-extern struct dma_map_ops avr32_dma_ops;
+extern const struct dma_map_ops avr32_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &avr32_dma_ops;
}
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index 54534e5d0781..555222d4f414 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -191,7 +191,7 @@ static void avr32_dma_sync_sg_for_device(struct device *dev,
dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
}
-struct dma_map_ops avr32_dma_ops = {
+const struct dma_map_ops avr32_dma_ops = {
.alloc = avr32_dma_alloc,
.free = avr32_dma_free,
.map_page = avr32_dma_map_page,
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 3490570aaa82..320fb50fbd41 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -36,9 +36,9 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
__dma_sync(addr, size, dir);
}
-extern struct dma_map_ops bfin_dma_ops;
+extern const struct dma_map_ops bfin_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &bfin_dma_ops;
}
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index a27a74a18fb0..477bb29a7987 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -159,7 +159,7 @@ static inline void bfin_dma_sync_single_for_device(struct device *dev,
_dma_sync(handle, size, dir);
}
-struct dma_map_ops bfin_dma_ops = {
+const struct dma_map_ops bfin_dma_ops = {
.alloc = bfin_dma_alloc,
.free = bfin_dma_free,
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 5717b1e52d96..88258b9ebc8e 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -17,9 +17,9 @@
*/
#define DMA_ERROR_CODE ~0
-extern struct dma_map_ops c6x_dma_ops;
+extern const struct dma_map_ops c6x_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &c6x_dma_ops;
}
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index 6752df32ef06..9fff8be75f58 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -123,7 +123,7 @@ static void c6x_dma_sync_sg_for_device(struct device *dev,
}
-struct dma_map_ops c6x_dma_ops = {
+const struct dma_map_ops c6x_dma_ops = {
.alloc = c6x_dma_alloc,
.free = c6x_dma_free,
.map_page = c6x_dma_map_page,
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index 1f0636793f0c..7072341995ff 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -69,7 +69,7 @@ static inline int v32_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops v32_dma_ops = {
+const struct dma_map_ops v32_dma_ops = {
.alloc = v32_dma_alloc,
.free = v32_dma_free,
.map_page = v32_dma_map_page,
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index 5a370178a0e9..aae4fbc0a656 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -2,14 +2,14 @@
#define _ASM_CRIS_DMA_MAPPING_H
#ifdef CONFIG_PCI
-extern struct dma_map_ops v32_dma_ops;
+extern const struct dma_map_ops v32_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &v32_dma_ops;
}
#else
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
BUG();
return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 9a82bfa4303b..150cc00544a8 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -7,9 +7,9 @@
extern unsigned long __nongprelbss dma_coherent_mem_start;
extern unsigned long __nongprelbss dma_coherent_mem_end;
-extern struct dma_map_ops frv_dma_ops;
+extern const struct dma_map_ops frv_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &frv_dma_ops;
}
diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c
index 187688128c65..4a96de7f0af4 100644
--- a/arch/frv/mb93090-mb00/pci-dma-nommu.c
+++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c
@@ -164,7 +164,7 @@ static int frv_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops frv_dma_ops = {
+const struct dma_map_ops frv_dma_ops = {
.alloc = frv_dma_alloc,
.free = frv_dma_free,
.map_page = frv_dma_map_page,
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index dba7df918144..e7130abc0dae 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -106,7 +106,7 @@ static int frv_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops frv_dma_ops = {
+const struct dma_map_ops frv_dma_ops = {
.alloc = frv_dma_alloc,
.free = frv_dma_free,
.map_page = frv_dma_map_page,
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index 7ac7fadffed0..f804bca4c13f 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _H8300_DMA_MAPPING_H
#define _H8300_DMA_MAPPING_H
-extern struct dma_map_ops h8300_dma_map_ops;
+extern const struct dma_map_ops h8300_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &h8300_dma_map_ops;
}
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
index 3651da045806..225dd0a188dc 100644
--- a/arch/h8300/kernel/dma.c
+++ b/arch/h8300/kernel/dma.c
@@ -60,7 +60,7 @@ static int map_sg(struct device *dev, struct scatterlist *sgl,
return nents;
}
-struct dma_map_ops h8300_dma_map_ops = {
+const struct dma_map_ops h8300_dma_map_ops = {
.alloc = dma_alloc,
.free = dma_free,
.map_page = map_page,
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 7ef58df909fc..b812e917cd95 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -32,9 +32,9 @@ struct device;
extern int bad_dma_address;
#define DMA_ERROR_CODE bad_dma_address
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (unlikely(dev == NULL))
return NULL;
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index dbc4f1003da4..e74b65009587 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -25,7 +25,7 @@
#include <linux/module.h>
#include <asm/page.h>
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
int bad_dma_address; /* globals are automatically initialized to zero */
@@ -203,7 +203,7 @@ static void hexagon_sync_single_for_device(struct device *dev,
dma_sync(dma_addr_to_virt(dma_handle), size, dir);
}
-struct dma_map_ops hexagon_dma_ops = {
+const struct dma_map_ops hexagon_dma_ops = {
.alloc = hexagon_dma_alloc_coherent,
.free = hexagon_free_coherent,
.map_sg = hexagon_map_sg,
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index 1e4cae5ae053..0310078a95f8 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -18,7 +18,7 @@
#include <linux/export.h>
#include <asm/machvec.h>
-extern struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
+extern const struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
/* swiotlb declarations & definitions: */
extern int swiotlb_late_init_with_default_size (size_t size);
@@ -34,7 +34,7 @@ static inline int use_swiotlb(struct device *dev)
!sba_dma_ops.dma_supported(dev, *dev->dma_mask);
}
-struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
+const struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
{
if (use_swiotlb(dev))
return &swiotlb_dma_ops;
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 630ee8073899..aec4a3354abe 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -2096,7 +2096,7 @@ static int __init acpi_sba_ioc_init_acpi(void)
/* This has to run before acpi_scan_init(). */
arch_initcall(acpi_sba_ioc_init_acpi);
-extern struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
static int __init
sba_init(void)
@@ -2216,7 +2216,7 @@ sba_page_override(char *str)
__setup("sbapagesize=",sba_page_override);
-struct dma_map_ops sba_dma_ops = {
+const struct dma_map_ops sba_dma_ops = {
.alloc = sba_alloc_coherent,
.free = sba_free_coherent,
.map_page = sba_map_page,
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index d472805edfa9..05e467d56d86 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -14,7 +14,7 @@
#define DMA_ERROR_CODE 0
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
extern struct ia64_machine_vector ia64_mv;
extern void set_iommu_machvec(void);
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index ed7f09089f12..af285c423e1e 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -44,7 +44,7 @@ typedef void ia64_mv_kernel_launch_event_t(void);
/* DMA-mapping interface: */
typedef void ia64_mv_dma_init (void);
typedef u64 ia64_mv_dma_get_required_mask (struct device *);
-typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
+typedef const struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
/*
* WARNING: The legacy I/O space is _architected_. Platforms are
@@ -248,7 +248,7 @@ extern void machvec_init_from_cmdline(const char *cmdline);
# endif /* CONFIG_IA64_GENERIC */
extern void swiotlb_dma_init(void);
-extern struct dma_map_ops *dma_get_ops(struct device *);
+extern const struct dma_map_ops *dma_get_ops(struct device *);
/*
* Define default versions so we can extend machvec for new platforms without having
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 7f7916238208..e0dd97f4eb69 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -4,7 +4,7 @@
/* Set this to 1 if there is a HW IOMMU in the system */
int iommu_detected __read_mostly;
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
@@ -17,7 +17,7 @@ static int __init dma_init(void)
}
fs_initcall(dma_init);
-struct dma_map_ops *dma_get_ops(struct device *dev)
+const struct dma_map_ops *dma_get_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 992c1098c522..9094a73f996f 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -90,11 +90,11 @@ void __init pci_iommu_alloc(void)
{
dma_ops = &intel_dma_ops;
- dma_ops->sync_single_for_cpu = machvec_dma_sync_single;
- dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg;
- dma_ops->sync_single_for_device = machvec_dma_sync_single;
- dma_ops->sync_sg_for_device = machvec_dma_sync_sg;
- dma_ops->dma_supported = iommu_dma_supported;
+ intel_dma_ops.sync_single_for_cpu = machvec_dma_sync_single;
+ intel_dma_ops.sync_sg_for_cpu = machvec_dma_sync_sg;
+ intel_dma_ops.sync_single_for_device = machvec_dma_sync_single;
+ intel_dma_ops.sync_sg_for_device = machvec_dma_sync_sg;
+ intel_dma_ops.dma_supported = iommu_dma_supported;
/*
* The order of these functions is important for
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 2933208c0285..a14989dacded 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -30,7 +30,7 @@ static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops swiotlb_dma_ops = {
.alloc = ia64_swiotlb_alloc_coherent,
.free = ia64_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h
index 4a9f35e0973f..7955a9799466 100644
--- a/arch/m32r/include/asm/device.h
+++ b/arch/m32r/include/asm/device.h
@@ -4,7 +4,7 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 2c43a77fe942..99c43d2f05dc 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,7 +10,7 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 96c536194287..863509939d5a 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _M68K_DMA_MAPPING_H
#define _M68K_DMA_MAPPING_H
-extern struct dma_map_ops m68k_dma_ops;
+extern const struct dma_map_ops m68k_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &m68k_dma_ops;
}
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 07070065a425..0fc5dabb4a42 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -158,7 +158,7 @@ static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist,
return nents;
}
-struct dma_map_ops m68k_dma_ops = {
+const struct dma_map_ops m68k_dma_ops = {
.alloc = m68k_dma_alloc,
.free = m68k_dma_free,
.map_page = m68k_dma_map_page,
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index 27af5d479ce6..c156a7ac732f 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _ASM_METAG_DMA_MAPPING_H
#define _ASM_METAG_DMA_MAPPING_H
-extern struct dma_map_ops metag_dma_ops;
+extern const struct dma_map_ops metag_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &metag_dma_ops;
}
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index 91968d92652b..f0ab3a498328 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -575,7 +575,7 @@ static void metag_dma_sync_sg_for_device(struct device *dev,
dma_sync_for_device(sg_virt(sg), sg->length, direction);
}
-struct dma_map_ops metag_dma_ops = {
+const struct dma_map_ops metag_dma_ops = {
.alloc = metag_dma_alloc,
.free = metag_dma_free,
.map_page = metag_dma_map_page,
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 1768d4bdc8d3..c7faf2fb51d6 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -36,9 +36,9 @@
/*
* Available generic sets of operations
*/
-extern struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_direct_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &dma_direct_ops;
}
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 818daf230eb4..12e093a03e60 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -187,7 +187,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
#endif
}
-struct dma_map_ops dma_direct_ops = {
+const struct dma_map_ops dma_direct_ops = {
.alloc = dma_direct_alloc_coherent,
.free = dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index fd69528b24fb..897d32c888ee 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -205,7 +205,7 @@ static phys_addr_t octeon_unity_dma_to_phys(struct device *dev, dma_addr_t daddr
}
struct octeon_dma_map_ops {
- struct dma_map_ops dma_map_ops;
+ const struct dma_map_ops dma_map_ops;
dma_addr_t (*phys_to_dma)(struct device *dev, phys_addr_t paddr);
phys_addr_t (*dma_to_phys)(struct device *dev, dma_addr_t daddr);
};
@@ -333,7 +333,7 @@ static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = {
},
};
-struct dma_map_ops *octeon_pci_dma_map_ops;
+const struct dma_map_ops *octeon_pci_dma_map_ops;
void __init octeon_pci_dma_init(void)
{
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index 21c2082a0dfb..ebc5c1265473 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -10,7 +10,7 @@ struct dma_map_ops;
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMA_PERDEV_COHERENT
/* Non-zero if DMA is coherent with CPU caches */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 7aa71b9b0258..b59b084a7569 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -9,9 +9,9 @@
#include <dma-coherence.h>
#endif
-extern struct dma_map_ops *mips_dma_map_ops;
+extern const struct dma_map_ops *mips_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 460042ee5d6f..9110988b92a1 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -65,7 +65,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
struct dma_map_ops;
-extern struct dma_map_ops *octeon_pci_dma_map_ops;
+extern const struct dma_map_ops *octeon_pci_dma_map_ops;
extern char *octeon_swiotlb;
#endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index be52c2125d71..e0717d10e650 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -88,7 +88,7 @@ extern struct plat_smp_ops nlm_smp_ops;
extern char nlm_reset_entry[], nlm_reset_entry_end[];
/* SWIOTLB */
-extern struct dma_map_ops nlm_swiotlb_dma_ops;
+extern const struct dma_map_ops nlm_swiotlb_dma_ops;
extern unsigned int nlm_threads_per_core;
extern cpumask_t nlm_cpumask;
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index aab4fd681e1f..7296df043d92 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -122,7 +122,7 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
return daddr;
}
-static struct dma_map_ops loongson_dma_map_ops = {
+static const struct dma_map_ops loongson_dma_map_ops = {
.alloc = loongson_dma_alloc_coherent,
.free = loongson_dma_free_coherent,
.map_page = loongson_dma_map_page,
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index a39c36af97ad..1cb84472cb58 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -417,7 +417,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
EXPORT_SYMBOL(dma_cache_sync);
-static struct dma_map_ops mips_default_dma_map_ops = {
+static const struct dma_map_ops mips_default_dma_map_ops = {
.alloc = mips_dma_alloc_coherent,
.free = mips_dma_free_coherent,
.mmap = mips_dma_mmap,
@@ -433,7 +433,7 @@ static struct dma_map_ops mips_default_dma_map_ops = {
.dma_supported = mips_dma_supported
};
-struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
+const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
EXPORT_SYMBOL(mips_dma_map_ops);
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
index 0630693bec2a..0ec9d9da6d51 100644
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ b/arch/mips/netlogic/common/nlm-dma.c
@@ -67,7 +67,7 @@ static void nlm_dma_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_handle);
}
-struct dma_map_ops nlm_swiotlb_dma_ops = {
+const struct dma_map_ops nlm_swiotlb_dma_ops = {
.alloc = nlm_dma_alloc_coherent,
.free = nlm_dma_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 1dcd44757f32..564e3927e005 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -14,9 +14,9 @@
#include <asm/cache.h>
#include <asm/io.h>
-extern struct dma_map_ops mn10300_dma_ops;
+extern const struct dma_map_ops mn10300_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &mn10300_dma_ops;
}
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 4f4b9029f0ea..86108d2496b3 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -121,7 +121,7 @@ static int mn10300_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops mn10300_dma_ops = {
+const struct dma_map_ops mn10300_dma_ops = {
.alloc = mn10300_dma_alloc,
.free = mn10300_dma_free,
.map_page = mn10300_dma_map_page,
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index bec8ac8e6ad2..aa00d839a64b 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -10,9 +10,9 @@
#ifndef _ASM_NIOS2_DMA_MAPPING_H
#define _ASM_NIOS2_DMA_MAPPING_H
-extern struct dma_map_ops nios2_dma_ops;
+extern const struct dma_map_ops nios2_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &nios2_dma_ops;
}
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index f6a5dcf9d682..7040c1adbb5e 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -192,7 +192,7 @@ static void nios2_dma_sync_sg_for_device(struct device *dev,
}
-struct dma_map_ops nios2_dma_ops = {
+const struct dma_map_ops nios2_dma_ops = {
.alloc = nios2_dma_alloc,
.free = nios2_dma_free,
.map_page = nios2_dma_map_page,
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 1f260bccb368..88acbedb4947 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -28,9 +28,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops or1k_dma_map_ops;
+extern const struct dma_map_ops or1k_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &or1k_dma_map_ops;
}
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 906998bac957..b10369b7e31b 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -232,7 +232,7 @@ or1k_sync_single_for_device(struct device *dev,
mtspr(SPR_DCBFR, cl);
}
-struct dma_map_ops or1k_dma_map_ops = {
+const struct dma_map_ops or1k_dma_map_ops = {
.alloc = or1k_dma_alloc,
.free = or1k_dma_free,
.map_page = or1k_map_page,
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 16e024602737..1749073e44fc 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -21,13 +21,13 @@
*/
#ifdef CONFIG_PA11
-extern struct dma_map_ops pcxl_dma_ops;
-extern struct dma_map_ops pcx_dma_ops;
+extern const struct dma_map_ops pcxl_dma_ops;
+extern const struct dma_map_ops pcx_dma_ops;
#endif
-extern struct dma_map_ops *hppa_dma_ops;
+extern const struct dma_map_ops *hppa_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return hppa_dma_ops;
}
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 700e2d2da096..fa78419100c8 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -40,7 +40,7 @@
#include <asm/parisc-device.h>
/* See comments in include/asm-parisc/pci.h */
-struct dma_map_ops *hppa_dma_ops __read_mostly;
+const struct dma_map_ops *hppa_dma_ops __read_mostly;
EXPORT_SYMBOL(hppa_dma_ops);
static struct device root = {
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 697c53543a4d..5f0067a62738 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -572,7 +572,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
flush_kernel_vmap_range(sg_virt(sg), sg->length);
}
-struct dma_map_ops pcxl_dma_ops = {
+const struct dma_map_ops pcxl_dma_ops = {
.dma_supported = pa11_dma_supported,
.alloc = pa11_dma_alloc,
.free = pa11_dma_free,
@@ -608,7 +608,7 @@ static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
return;
}
-struct dma_map_ops pcx_dma_ops = {
+const struct dma_map_ops pcx_dma_ops = {
.dma_supported = pa11_dma_supported,
.alloc = pcx_dma_alloc,
.free = pcx_dma_free,
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 406c2b1ff82d..49cbb0fca233 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -21,7 +21,7 @@ struct iommu_table;
*/
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
/*
* These two used to be a union. However, with the hybrid ops we need
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 84e3f8dd5e4f..2ec3eadf336f 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -76,9 +76,9 @@ static inline unsigned long device_to_mask(struct device *dev)
#ifdef CONFIG_PPC64
extern struct dma_map_ops dma_iommu_ops;
#endif
-extern struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_direct_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
/* We don't handle the NULL dev case for ISA for now. We could
* do it via an out of line call but it is not needed for now. The
@@ -91,7 +91,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return dev->archdata.dma_ops;
}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
}
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index e9bd6cf0212f..93eded8d3843 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -53,8 +53,8 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
}
#ifdef CONFIG_PCI
-extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
-extern struct dma_map_ops *get_pci_dma_ops(void);
+extern void set_pci_dma_ops(const struct dma_map_ops *dma_ops);
+extern const struct dma_map_ops *get_pci_dma_ops(void);
#else /* CONFIG_PCI */
#define set_pci_dma_ops(d)
#define get_pci_dma_ops() NULL
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index de99d6e29430..01d45a5fd00b 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -13,7 +13,7 @@
#include <linux/swiotlb.h>
-extern struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
static inline void dma_mark_clean(void *addr, size_t size) {}
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index c6689f658b50..d0ea7860e02b 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -46,7 +46,7 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
* map_page, and unmap_page on highmem, use normal dma_ops
* for everything else.
*/
-struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops swiotlb_dma_ops = {
.alloc = __dma_direct_alloc_coherent,
.free = __dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 6877e3fa95bb..03b98f1f98ec 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -274,7 +274,7 @@ static inline void dma_direct_sync_single(struct device *dev,
}
#endif
-struct dma_map_ops dma_direct_ops = {
+const struct dma_map_ops dma_direct_ops = {
.alloc = dma_direct_alloc_coherent,
.free = dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
@@ -316,7 +316,7 @@ EXPORT_SYMBOL(dma_set_coherent_mask);
int __dma_set_mask(struct device *dev, u64 dma_mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
if ((dma_ops != NULL) && (dma_ops->set_dma_mask != NULL))
return dma_ops->set_dma_mask(dev, dma_mask);
@@ -344,7 +344,7 @@ EXPORT_SYMBOL(dma_set_mask);
u64 __dma_get_required_mask(struct device *dev)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
if (unlikely(dma_ops == NULL))
return 0;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 74bec5498972..09db4778435c 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -59,14 +59,14 @@ resource_size_t isa_mem_base;
EXPORT_SYMBOL(isa_mem_base);
-static struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
+static const struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
-void set_pci_dma_ops(struct dma_map_ops *dma_ops)
+void set_pci_dma_ops(const struct dma_map_ops *dma_ops)
{
pci_dma_ops = dma_ops;
}
-struct dma_map_ops *get_pci_dma_ops(void)
+const struct dma_map_ops *get_pci_dma_ops(void)
{
return pci_dma_ops;
}
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 7ff51f96a00e..e1413e69e5fe 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -651,7 +651,7 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask)
static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask);
-static struct dma_map_ops dma_iommu_fixed_ops = {
+static const struct dma_map_ops dma_iommu_fixed_ops = {
.alloc = dma_fixed_alloc_coherent,
.free = dma_fixed_free_coherent,
.map_sg = dma_fixed_map_sg,
@@ -1172,7 +1172,7 @@ __setup("iommu_fixed=", setup_iommu_fixed);
static u64 cell_dma_get_required_mask(struct device *dev)
{
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
if (!dev->dma_mask)
return 0;
diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index 73b155fd4481..1c383f38031d 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -115,7 +115,7 @@ static u64 dma_npu_get_required_mask(struct device *dev)
return 0;
}
-static struct dma_map_ops dma_npu_ops = {
+static const struct dma_map_ops dma_npu_ops = {
.map_page = dma_npu_map_page,
.map_sg = dma_npu_map_sg,
.alloc = dma_npu_alloc,
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 8af1c15aef85..c81450d98794 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -701,7 +701,7 @@ static u64 ps3_dma_get_required_mask(struct device *_dev)
return DMA_BIT_MASK(32);
}
-static struct dma_map_ops ps3_sb_dma_ops = {
+static const struct dma_map_ops ps3_sb_dma_ops = {
.alloc = ps3_alloc_coherent,
.free = ps3_free_coherent,
.map_sg = ps3_sb_map_sg,
@@ -712,7 +712,7 @@ static struct dma_map_ops ps3_sb_dma_ops = {
.unmap_page = ps3_unmap_page,
};
-static struct dma_map_ops ps3_ioc0_dma_ops = {
+static const struct dma_map_ops ps3_ioc0_dma_ops = {
.alloc = ps3_alloc_coherent,
.free = ps3_free_coherent,
.map_sg = ps3_ioc0_map_sg,
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 614c28537141..2e36a0b8944a 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -136,7 +136,7 @@ static u64 ibmebus_dma_get_required_mask(struct device *dev)
return DMA_BIT_MASK(64);
}
-static struct dma_map_ops ibmebus_dma_ops = {
+static const struct dma_map_ops ibmebus_dma_ops = {
.alloc = ibmebus_alloc_coherent,
.free = ibmebus_free_coherent,
.map_sg = ibmebus_map_sg,
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 2c8fb3ec989e..720493932486 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -615,7 +615,7 @@ static u64 vio_dma_get_required_mask(struct device *dev)
return dma_iommu_ops.get_required_mask(dev);
}
-static struct dma_map_ops vio_dma_mapping_ops = {
+static const struct dma_map_ops vio_dma_mapping_ops = {
.alloc = vio_dma_iommu_alloc_coherent,
.free = vio_dma_iommu_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 4a9f35e0973f..7955a9799466 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,7 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index ffaba07f50ab..2776d205b1ff 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -10,9 +10,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t) 0x0)
-extern struct dma_map_ops s390_pci_dma_ops;
+extern const struct dma_map_ops s390_pci_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 1d7a9c71944a..9081a57fa340 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -650,7 +650,7 @@ static int __init dma_debug_do_init(void)
}
fs_initcall(dma_debug_do_init);
-struct dma_map_ops s390_pci_dma_ops = {
+const struct dma_map_ops s390_pci_dma_ops = {
.alloc = s390_dma_alloc,
.free = s390_dma_free,
.map_sg = s390_dma_map_sg,
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 0052ad40e86d..a7382c34c241 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -1,10 +1,10 @@
#ifndef __ASM_SH_DMA_MAPPING_H
#define __ASM_SH_DMA_MAPPING_H
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void);
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 47fee3b6e29c..d24c707b2181 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -65,7 +65,7 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg,
}
#endif
-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
.alloc = dma_generic_alloc_coherent,
.free = dma_generic_free_coherent,
.map_page = nommu_map_page,
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 92b6976fde59..d1275adfa0ef 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -22,7 +22,7 @@
#define PREALLOC_DMA_DEBUG_ENTRIES 4096
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
static int __init dma_init(void)
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 1180ae254154..3d2babc0c4c6 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -18,13 +18,13 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
*/
}
-extern struct dma_map_ops *dma_ops;
-extern struct dma_map_ops *leon_dma_ops;
-extern struct dma_map_ops pci32_dma_ops;
+extern const struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *leon_dma_ops;
+extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 9df997995f6b..c63ba99ca551 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -741,7 +741,7 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev,
spin_unlock_irqrestore(&iommu->lock, flags);
}
-static struct dma_map_ops sun4u_dma_ops = {
+static const struct dma_map_ops sun4u_dma_ops = {
.alloc = dma_4u_alloc_coherent,
.free = dma_4u_free_coherent,
.map_page = dma_4u_map_page,
@@ -752,7 +752,7 @@ static struct dma_map_ops sun4u_dma_ops = {
.sync_sg_for_cpu = dma_4u_sync_sg_for_cpu,
};
-struct dma_map_ops *dma_ops = &sun4u_dma_ops;
+const struct dma_map_ops *dma_ops = &sun4u_dma_ops;
EXPORT_SYMBOL(dma_ops);
int dma_supported(struct device *dev, u64 device_mask)
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 6ffaec44931a..cf20033a1458 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -401,7 +401,7 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
BUG();
}
-static struct dma_map_ops sbus_dma_ops = {
+static const struct dma_map_ops sbus_dma_ops = {
.alloc = sbus_alloc_coherent,
.free = sbus_free_coherent,
.map_page = sbus_map_page,
@@ -637,7 +637,7 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *
}
}
-struct dma_map_ops pci32_dma_ops = {
+const struct dma_map_ops pci32_dma_ops = {
.alloc = pci32_alloc_coherent,
.free = pci32_free_coherent,
.map_page = pci32_map_page,
@@ -652,10 +652,10 @@ struct dma_map_ops pci32_dma_ops = {
EXPORT_SYMBOL(pci32_dma_ops);
/* leon re-uses pci32_dma_ops */
-struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
+const struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
EXPORT_SYMBOL(leon_dma_ops);
-struct dma_map_ops *dma_ops = &sbus_dma_ops;
+const struct dma_map_ops *dma_ops = &sbus_dma_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index f4daccd12bf5..68bec7c97cb8 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -669,7 +669,7 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist,
local_irq_restore(flags);
}
-static struct dma_map_ops sun4v_dma_ops = {
+static const struct dma_map_ops sun4v_dma_ops = {
.alloc = dma_4v_alloc_coherent,
.free = dma_4v_free_coherent,
.map_page = dma_4v_map_page,
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 6ab8bf146d4c..25f23ac7d361 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -18,7 +18,7 @@
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
/* Offset of the DMA address from the PA. */
dma_addr_t dma_offset;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 01ceb4a895b0..4a06cc75b856 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -24,12 +24,12 @@
#define ARCH_HAS_DMA_GET_REQUIRED_MASK
#endif
-extern struct dma_map_ops *tile_dma_map_ops;
-extern struct dma_map_ops *gx_pci_dma_map_ops;
-extern struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-extern struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
+extern const struct dma_map_ops *tile_dma_map_ops;
+extern const struct dma_map_ops *gx_pci_dma_map_ops;
+extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
+extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
@@ -59,7 +59,7 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
}
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 24e0f8c21f2f..569bb6dd154a 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -329,7 +329,7 @@ tile_dma_supported(struct device *dev, u64 mask)
return 1;
}
-static struct dma_map_ops tile_default_dma_map_ops = {
+static const struct dma_map_ops tile_default_dma_map_ops = {
.alloc = tile_dma_alloc_coherent,
.free = tile_dma_free_coherent,
.map_page = tile_dma_map_page,
@@ -344,7 +344,7 @@ static struct dma_map_ops tile_default_dma_map_ops = {
.dma_supported = tile_dma_supported
};
-struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
+const struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
EXPORT_SYMBOL(tile_dma_map_ops);
/* Generic PCI DMA mapping functions */
@@ -516,7 +516,7 @@ tile_pci_dma_supported(struct device *dev, u64 mask)
return 1;
}
-static struct dma_map_ops tile_pci_default_dma_map_ops = {
+static const struct dma_map_ops tile_pci_default_dma_map_ops = {
.alloc = tile_pci_dma_alloc_coherent,
.free = tile_pci_dma_free_coherent,
.map_page = tile_pci_dma_map_page,
@@ -531,7 +531,7 @@ static struct dma_map_ops tile_pci_default_dma_map_ops = {
.dma_supported = tile_pci_dma_supported
};
-struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
+const struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
EXPORT_SYMBOL(gx_pci_dma_map_ops);
/* PCI DMA mapping functions for legacy PCI devices */
@@ -552,7 +552,7 @@ static void tile_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-static struct dma_map_ops pci_swiotlb_dma_ops = {
+static const struct dma_map_ops pci_swiotlb_dma_ops = {
.alloc = tile_swiotlb_alloc_coherent,
.free = tile_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
@@ -567,7 +567,7 @@ static struct dma_map_ops pci_swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
};
-static struct dma_map_ops pci_hybrid_dma_ops = {
+static const struct dma_map_ops pci_hybrid_dma_ops = {
.alloc = tile_swiotlb_alloc_coherent,
.free = tile_swiotlb_free_coherent,
.map_page = tile_pci_dma_map_page,
@@ -582,18 +582,18 @@ static struct dma_map_ops pci_hybrid_dma_ops = {
.dma_supported = tile_pci_dma_supported
};
-struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
-struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
+const struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
#else
-struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
+const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
#endif
EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops);
EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops);
int dma_set_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
/*
* For PCI devices with 64-bit DMA addressing capability, promote
@@ -623,7 +623,7 @@ EXPORT_SYMBOL(dma_set_mask);
#ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK
int dma_set_coherent_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
/*
* For PCI devices with 64-bit DMA addressing capability, promote
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 4749854afd03..14d7729c7b73 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -21,9 +21,9 @@
#include <asm/memory.h>
#include <asm/cacheflush.h>
-extern struct dma_map_ops swiotlb_dma_map_ops;
+extern const struct dma_map_ops swiotlb_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &swiotlb_dma_map_ops;
}
diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c
index 3e9f6489ba38..525413d6690e 100644
--- a/arch/unicore32/mm/dma-swiotlb.c
+++ b/arch/unicore32/mm/dma-swiotlb.c
@@ -31,7 +31,7 @@ static void unicore_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-struct dma_map_ops swiotlb_dma_map_ops = {
+const struct dma_map_ops swiotlb_dma_map_ops = {
.alloc = unicore_swiotlb_alloc_coherent,
.free = unicore_swiotlb_free_coherent,
.map_sg = swiotlb_map_sg_attrs,
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 684ed6c3aa67..b2d0b4ced7e3 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -3,7 +3,7 @@
struct dev_archdata {
#ifdef CONFIG_X86_DEV_DMA_OPS
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#endif
#if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
void *iommu; /* hook for IOMMU specific extension */
@@ -13,7 +13,7 @@ struct dev_archdata {
#if defined(CONFIG_X86_DEV_DMA_OPS) && defined(CONFIG_PCI_DOMAINS)
struct dma_domain {
struct list_head node;
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
int domain_nr;
};
void add_dma_domain(struct dma_domain *domain);
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 44461626830e..5e4772886a1e 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -25,9 +25,9 @@ extern int iommu_merge;
extern struct device x86_dma_fallback_dev;
extern int panic_on_overflow;
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 345c99cef152..793869879464 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -1,7 +1,7 @@
#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H
-extern struct dma_map_ops nommu_dma_ops;
+extern const struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_pass_through;
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 63ff468a7986..82dfe32faaf4 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -695,7 +695,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info)
return -1;
}
-static struct dma_map_ops gart_dma_ops = {
+static const struct dma_map_ops gart_dma_ops = {
.map_sg = gart_map_sg,
.unmap_sg = gart_unmap_sg,
.map_page = gart_map_page,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 5d400ba1349d..17f180148c80 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -478,7 +478,7 @@ static void calgary_free_coherent(struct device *dev, size_t size,
free_pages((unsigned long)vaddr, get_order(size));
}
-static struct dma_map_ops calgary_dma_ops = {
+static const struct dma_map_ops calgary_dma_ops = {
.alloc = calgary_alloc_coherent,
.free = calgary_free_coherent,
.map_sg = calgary_map_sg,
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index d30c37750765..76f4c039baae 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -17,7 +17,7 @@
static int forbid_dac __read_mostly;
-struct dma_map_ops *dma_ops = &nommu_dma_ops;
+const struct dma_map_ops *dma_ops = &nommu_dma_ops;
EXPORT_SYMBOL(dma_ops);
static int iommu_sac_force __read_mostly;
@@ -214,7 +214,7 @@ early_param("iommu", iommu_setup);
int dma_supported(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
#ifdef CONFIG_PCI
if (mask > 0xffffffff && forbid_dac > 0) {
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 00e71ce396a8..a88952ef371c 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -88,7 +88,7 @@ static void nommu_sync_sg_for_device(struct device *dev,
flush_write_buffers();
}
-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
.alloc = dma_generic_alloc_coherent,
.free = dma_generic_free_coherent,
.map_sg = nommu_map_sg,
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 410efb2c7b80..1e23577e17cf 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -45,7 +45,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
}
-static struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
.alloc = x86_swiotlb_alloc_coherent,
.free = x86_swiotlb_free_coherent,
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 052c1cb76305..aa3828823170 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -179,7 +179,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
}
/* We have our own dma_ops: the same as swiotlb but from alloc (above) */
-static struct dma_map_ops sta2x11_dma_ops = {
+static const struct dma_map_ops sta2x11_dma_ops = {
.alloc = sta2x11_swiotlb_alloc_coherent,
.free = x86_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c
index a0b36a9d5df1..42b08f8fc2ca 100644
--- a/arch/x86/xen/pci-swiotlb-xen.c
+++ b/arch/x86/xen/pci-swiotlb-xen.c
@@ -18,7 +18,7 @@
int xen_swiotlb __read_mostly;
-static struct dma_map_ops xen_swiotlb_dma_ops = {
+static const struct dma_map_ops xen_swiotlb_dma_ops = {
.alloc = xen_swiotlb_alloc_coherent,
.free = xen_swiotlb_free_coherent,
.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index fe1f5c878493..a77d45d39f35 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -10,7 +10,7 @@ struct dma_map_ops;
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 3fc1170a6488..50d23106cce0 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -18,9 +18,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops xtensa_dma_map_ops;
+extern const struct dma_map_ops xtensa_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 70e362e6038e..ecec5265a66d 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -249,7 +249,7 @@ int xtensa_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
return 0;
}
-struct dma_map_ops xtensa_dma_map_ops = {
+const struct dma_map_ops xtensa_dma_map_ops = {
.alloc = xtensa_dma_alloc,
.free = xtensa_dma_free,
.map_page = xtensa_map_page,
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3ef0f42984f2..3703fb9db419 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -117,7 +117,7 @@ static const struct iommu_ops amd_iommu_ops;
static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
int amd_iommu_max_glx_val = -1;
-static struct dma_map_ops amd_iommu_dma_ops;
+static const struct dma_map_ops amd_iommu_dma_ops;
/*
* This struct contains device specific data for the IOMMU
@@ -2728,7 +2728,7 @@ static int amd_iommu_dma_supported(struct device *dev, u64 mask)
return check_device(dev);
}
-static struct dma_map_ops amd_iommu_dma_ops = {
+static const struct dma_map_ops amd_iommu_dma_ops = {
.alloc = alloc_coherent,
.free = free_coherent,
.map_page = map_page,
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index be37890abb93..c4b27a25662a 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -143,7 +143,7 @@ static void mbus_release_dev(struct device *d)
}
struct mbus_device *
-mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct mbus_hw_ops *hw_ops, int index,
void __iomem *mmio_va)
{
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index ff6e01c25810..e5d377e97c86 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -138,7 +138,7 @@ static void scif_release_dev(struct device *d)
}
struct scif_hw_dev *
-scif_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct scif_hw_ops *hw_ops, u8 dnode, u8 snode,
struct mic_mw *mmio, struct mic_mw *aper, void *dp,
void __iomem *rdp, struct dma_chan **chan, int num_chan,
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
index 94f29ac608b6..ff59568219ad 100644
--- a/drivers/misc/mic/bus/scif_bus.h
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -113,7 +113,7 @@ int scif_register_driver(struct scif_driver *driver);
void scif_unregister_driver(struct scif_driver *driver);
struct scif_hw_dev *
scif_register_device(struct device *pdev, int id,
- struct dma_map_ops *dma_ops,
+ const struct dma_map_ops *dma_ops,
struct scif_hw_ops *hw_ops, u8 dnode, u8 snode,
struct mic_mw *mmio, struct mic_mw *aper,
void *dp, void __iomem *rdp,
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index 303da222f5b6..b59551f5db65 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -154,7 +154,7 @@ vop_register_device(struct device *pdev, int id,
vdev->dev.parent = pdev;
vdev->id.device = id;
vdev->id.vendor = VOP_DEV_ANY_ID;
- vdev->dev.archdata.dma_ops = (struct dma_map_ops *)dma_ops;
+ vdev->dev.archdata.dma_ops = (const struct dma_map_ops *)dma_ops;
vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask;
dma_set_mask(&vdev->dev, DMA_BIT_MASK(64));
vdev->dev.release = vop_release_dev;
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index 9599d732aff3..c327985c9523 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -245,7 +245,7 @@ static void __mic_dma_unmap_sg(struct device *dev,
dma_unmap_sg(&mdev->pdev->dev, sg, nents, dir);
}
-static struct dma_map_ops __mic_dma_ops = {
+static const struct dma_map_ops __mic_dma_ops = {
.alloc = __mic_dma_alloc,
.free = __mic_dma_free,
.map_page = __mic_dma_map_page,
@@ -344,7 +344,7 @@ mic_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
mic_unmap_single(mdev, dma_addr, size);
}
-static struct dma_map_ops mic_dma_ops = {
+static const struct dma_map_ops mic_dma_ops = {
.map_page = mic_dma_map_page,
.unmap_page = mic_dma_unmap_page,
};
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 553ef8a5d588..aeb073b5fe16 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1011,7 +1011,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
}
-static struct dma_map_ops ccio_ops = {
+static const struct dma_map_ops ccio_ops = {
.dma_supported = ccio_dma_supported,
.alloc = ccio_alloc,
.free = ccio_free,
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 151b86b6d2e2..33385e574433 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1069,7 +1069,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
}
-static struct dma_map_ops sba_ops = {
+static const struct dma_map_ops sba_ops = {
.dma_supported = sba_dma_supported,
.alloc = sba_alloc,
.free = sba_free,
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c
index 18ef1a93c10a..e27ad2a3bd33 100644
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/host/vmd.c
@@ -282,7 +282,7 @@ static struct device *to_vmd_dev(struct device *dev)
return &vmd->dev->dev;
}
-static struct dma_map_ops *vmd_dma_ops(struct device *dev)
+static const struct dma_map_ops *vmd_dma_ops(struct device *dev)
{
return get_dma_ops(to_vmd_dev(dev));
}
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 10c5a17b1f51..f1da68b82c63 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -127,7 +127,7 @@ struct dma_map_ops {
int is_phys;
};
-extern struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_noop_ops;
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
@@ -170,8 +170,8 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
* dma dependent code. Code that depends on the dma-mapping
* API needs to set 'depends on HAS_DMA' in its Kconfig
*/
-extern struct dma_map_ops bad_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+extern const struct dma_map_ops bad_dma_ops;
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &bad_dma_ops;
}
@@ -182,7 +182,7 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
kmemcheck_mark_initialized(ptr, size);
@@ -201,7 +201,7 @@ static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t addr,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
@@ -217,7 +217,7 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
int i, ents;
struct scatterlist *s;
@@ -235,7 +235,7 @@ static inline void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg
int nents, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
debug_dma_unmap_sg(dev, sg, nents, dir);
@@ -249,7 +249,7 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
kmemcheck_mark_initialized(page_address(page) + offset, size);
@@ -265,7 +265,7 @@ static inline void dma_unmap_page_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
@@ -279,7 +279,7 @@ static inline dma_addr_t dma_map_resource(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
BUG_ON(!valid_dma_direction(dir));
@@ -300,7 +300,7 @@ static inline void dma_unmap_resource(struct device *dev, dma_addr_t addr,
size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_resource)
@@ -312,7 +312,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
size_t size,
enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_cpu)
@@ -324,7 +324,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
dma_addr_t addr, size_t size,
enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_device)
@@ -364,7 +364,7 @@ static inline void
dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_cpu)
@@ -376,7 +376,7 @@ static inline void
dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_device)
@@ -421,7 +421,7 @@ static inline int
dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr,
dma_addr_t dma_addr, size_t size, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
if (ops->mmap)
return ops->mmap(dev, vma, cpu_addr, dma_addr, size, attrs);
@@ -439,7 +439,7 @@ dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr,
dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
if (ops->get_sgtable)
return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
@@ -457,7 +457,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
void *cpu_addr;
BUG_ON(!ops);
@@ -479,7 +479,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_handle,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
WARN_ON(irqs_disabled());
@@ -537,7 +537,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
#ifndef HAVE_ARCH_DMA_SUPPORTED
static inline int dma_supported(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
if (!ops)
return 0;
@@ -550,7 +550,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
#ifndef HAVE_ARCH_DMA_SET_MASK
static inline int dma_set_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, mask);
diff --git a/include/linux/mic_bus.h b/include/linux/mic_bus.h
index 27d7c95fd0da..504d54c71bdb 100644
--- a/include/linux/mic_bus.h
+++ b/include/linux/mic_bus.h
@@ -90,7 +90,7 @@ struct mbus_hw_ops {
};
struct mbus_device *
-mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct mbus_hw_ops *hw_ops, int index,
void __iomem *mmio_va);
void mbus_unregister_device(struct mbus_device *mbdev);
diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h
index 95251512e2c4..44b587b49904 100644
--- a/include/xen/arm/hypervisor.h
+++ b/include/xen/arm/hypervisor.h
@@ -18,7 +18,7 @@ static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
return PARAVIRT_LAZY_NONE;
}
-extern struct dma_map_ops *xen_dma_ops;
+extern const struct dma_map_ops *xen_dma_ops;
#ifdef CONFIG_XEN
void __init xen_early_init(void);
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index 3d766e78fbe2..65e49dd35b7b 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -64,7 +64,7 @@ static int dma_noop_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops dma_noop_ops = {
+const struct dma_map_ops dma_noop_ops = {
.alloc = dma_noop_alloc,
.free = dma_noop_free,
.map_page = dma_noop_map_page,
--
2.11.0
^ permalink raw reply related [flat|nested] 18+ messages in thread
* [PATCH 2/9] Move dma_ops from archdata into struct device
[not found] <20170111005648.14988-1-bart.vanassche@sandisk.com>
2017-01-11 0:56 ` [PATCH 1/9] treewide: Constify most dma_map_ops structures Bart Van Assche
@ 2017-01-11 0:56 ` Bart Van Assche
2017-01-11 0:56 ` Bart Van Assche
` (2 more replies)
1 sibling, 3 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 0:56 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma, linux-kernel, Greg Kroah-Hartman, Aurelien Jacquiot,
Catalin Marinas, Chris Zankel, David Howells, David S . Miller,
Fenghua Yu, Geert Uytterhoeven, Geoff Levand, H . Peter Anvin,
Haavard Skinnemoen, Hans-Christian Egtvedt, Helge Deller,
Ingo Molnar, James E . J . Bottomley, Jesper Nilsson,
Joerg Roedel, Jon Mason, Jonas Bonn, Ley Foon Tan, Mark Salter,
Max Filippov, Mikael Starvik, Muli Ben-Yehuda, Rich Felker,
Russell King, Stafford Horne, Stefan Kristiansson,
Thomas Gleixner, Tony Luck, Will Deacon, x86, Yoshinori Sato,
adi-buildroot-devel, iommu, linux-alpha, linux-am33-list,
linux-arm-kernel, linux-c6x-dev, linux-cris-kernel,
linux-hexagon, linux-ia64, linux-m68k, linux-metag, linux-mips,
linux-parisc, linux-pci, linux-s390, linux-sh, linux-snps-arc,
linux-xtensa, linuxppc-dev, nios2-dev, openrisc, sparclinux,
uclinux-h8-devel
Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
transfer data between memory and PCIe adapter. Because of performance
reasons it is important that the CPU cache is not flushed when such
drivers transfer data. Make this possible by allowing these drivers to
override the dma_map_ops pointer. Additionally, introduce the function
set_dma_ops() that will be used by a later patch in this series.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Geoff Levand <geoff@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: x86@kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: iommu@lists.linux-foundation.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: sparclinux@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
---
arch/alpha/include/asm/dma-mapping.h | 2 +-
arch/arc/include/asm/dma-mapping.h | 2 +-
arch/arm/include/asm/device.h | 1 -
arch/arm/include/asm/dma-mapping.h | 17 ++++-------------
arch/arm64/include/asm/device.h | 1 -
arch/arm64/include/asm/dma-mapping.h | 8 ++++----
arch/arm64/mm/dma-mapping.c | 8 ++++----
arch/avr32/include/asm/dma-mapping.h | 2 +-
arch/blackfin/include/asm/dma-mapping.h | 2 +-
arch/c6x/include/asm/dma-mapping.h | 2 +-
arch/cris/include/asm/dma-mapping.h | 4 ++--
arch/frv/include/asm/dma-mapping.h | 2 +-
arch/h8300/include/asm/dma-mapping.h | 2 +-
arch/hexagon/include/asm/dma-mapping.h | 5 +----
arch/ia64/include/asm/dma-mapping.h | 5 ++++-
arch/m32r/include/asm/dma-mapping.h | 4 +---
arch/m68k/include/asm/dma-mapping.h | 2 +-
arch/metag/include/asm/dma-mapping.h | 2 +-
arch/microblaze/include/asm/dma-mapping.h | 2 +-
arch/mips/include/asm/device.h | 5 -----
arch/mips/include/asm/dma-mapping.h | 7 ++-----
arch/mips/pci/pci-octeon.c | 2 +-
arch/mn10300/include/asm/dma-mapping.h | 2 +-
arch/nios2/include/asm/dma-mapping.h | 2 +-
arch/openrisc/include/asm/dma-mapping.h | 2 +-
arch/parisc/include/asm/dma-mapping.h | 2 +-
arch/powerpc/include/asm/device.h | 4 ----
arch/powerpc/include/asm/dma-mapping.h | 17 ++---------------
arch/powerpc/include/asm/ps3.h | 2 +-
arch/powerpc/kernel/dma.c | 2 +-
arch/powerpc/platforms/cell/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/setup.c | 2 +-
arch/powerpc/platforms/ps3/system-bus.c | 4 ++--
arch/powerpc/platforms/pseries/ibmebus.c | 2 +-
arch/s390/include/asm/device.h | 1 -
arch/s390/include/asm/dma-mapping.h | 4 +---
arch/s390/pci/pci.c | 2 +-
arch/sh/include/asm/dma-mapping.h | 2 +-
arch/sparc/include/asm/dma-mapping.h | 4 ++--
arch/tile/include/asm/device.h | 3 ---
arch/tile/include/asm/dma-mapping.h | 12 ++----------
arch/x86/include/asm/device.h | 3 ---
arch/x86/include/asm/dma-mapping.h | 9 +--------
arch/x86/kernel/pci-calgary_64.c | 4 ++--
arch/x86/pci/common.c | 2 +-
arch/x86/pci/sta2x11-fixup.c | 8 ++++----
arch/xtensa/include/asm/device.h | 4 ----
arch/xtensa/include/asm/dma-mapping.h | 7 ++-----
drivers/infiniband/ulp/srpt/ib_srpt.c | 2 +-
drivers/iommu/amd_iommu.c | 6 +++---
drivers/misc/mic/bus/mic_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.c | 2 +-
drivers/misc/mic/bus/vop_bus.c | 2 +-
include/linux/device.h | 2 ++
include/linux/dma-mapping.h | 12 ++++++++++++
56 files changed, 85 insertions(+), 140 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index d3480562411d..5d53666935e6 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index fdff3aa60052..94285031c4fb 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -20,7 +20,7 @@
extern const struct dma_map_ops arc_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &arc_dma_ops;
}
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index d8a572f9c187..220ba207be91 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,6 @@
#define ASMARM_DEVICE_H
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMABOUNCE
struct dmabounce_device_info *dmabounce;
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 1aabd781306f..7c6d995fb935 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -18,23 +18,14 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
return &arm_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (xen_initial_domain())
- return xen_dma_ops;
- else
- return __generic_dma_ops(dev);
-}
-
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- BUG_ON(!dev);
- dev->archdata.dma_ops = ops;
+ return xen_initial_domain() ? xen_dma_ops : &arm_dma_ops;
}
#define HAVE_ARCH_DMA_SUPPORTED 1
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 00c678cc31e1..73d5bab015eb 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,6 @@
#define __ASM_DEVICE_H
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 1fedb43be712..ff311c67ab0c 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -29,8 +29,8 @@ extern const struct dma_map_ops dummy_dma_ops;
static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
/*
* We expect no ISA devices, and all other DMA masters are expected to
@@ -39,12 +39,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
if (xen_initial_domain())
return xen_dma_ops;
else
- return __generic_dma_ops(dev);
+ return __generic_dma_ops(NULL);
}
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index bcef6368d48f..9c80a3cbce59 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -837,7 +837,7 @@ static bool do_iommu_attach(struct device *dev, const struct iommu_ops *ops,
return false;
}
- dev->archdata.dma_ops = &iommu_dma_ops;
+ set_dma_ops(dev, &iommu_dma_ops);
return true;
}
@@ -941,7 +941,7 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
void arch_teardown_dma_ops(struct device *dev)
{
- dev->archdata.dma_ops = NULL;
+ set_dma_ops(dev, NULL);
}
#else
@@ -955,8 +955,8 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)
{
- if (!dev->archdata.dma_ops)
- dev->archdata.dma_ops = &swiotlb_dma_ops;
+ if (!dev->dma_ops)
+ set_dma_ops(dev, &swiotlb_dma_ops);
dev->archdata.dma_coherent = coherent;
__iommu_setup_dma_ops(dev, dma_base, size, iommu);
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index b2b43c0e0774..7388451f9905 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -6,7 +6,7 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
extern const struct dma_map_ops avr32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &avr32_dma_ops;
}
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 320fb50fbd41..04254ac36bed 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
extern const struct dma_map_ops bfin_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &bfin_dma_ops;
}
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 88258b9ebc8e..aca9f755e4f8 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -19,7 +19,7 @@
extern const struct dma_map_ops c6x_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &c6x_dma_ops;
}
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index aae4fbc0a656..256169de3743 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -4,12 +4,12 @@
#ifdef CONFIG_PCI
extern const struct dma_map_ops v32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &v32_dma_ops;
}
#else
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
BUG();
return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 150cc00544a8..354900917585 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -9,7 +9,7 @@ extern unsigned long __nongprelbss dma_coherent_mem_end;
extern const struct dma_map_ops frv_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &frv_dma_ops;
}
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index f804bca4c13f..847c7562e046 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops h8300_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &h8300_dma_map_ops;
}
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index b812e917cd95..d3a87bd9b686 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -34,11 +34,8 @@ extern int bad_dma_address;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (unlikely(dev == NULL))
- return NULL;
-
return dma_ops;
}
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 05e467d56d86..73ec3c6f4cfe 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -23,7 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction);
-#define get_dma_ops(dev) platform_dma_get_ops(dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+ return platform_dma_get_ops(NULL);
+}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 99c43d2f05dc..c01d9f52d228 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,10 +10,8 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 863509939d5a..9210e470771b 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops m68k_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &m68k_dma_ops;
}
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index c156a7ac732f..fad3dc3cb210 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops metag_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &metag_dma_ops;
}
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index c7faf2fb51d6..3fad5e722a66 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@
*/
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &dma_direct_ops;
}
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index ebc5c1265473..6aa796f1081a 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -6,12 +6,7 @@
#ifndef _ASM_MIPS_DEVICE_H
#define _ASM_MIPS_DEVICE_H
-struct dma_map_ops;
-
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
#ifdef CONFIG_DMA_PERDEV_COHERENT
/* Non-zero if DMA is coherent with CPU caches */
bool dma_coherent;
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index b59b084a7569..aba71385f9d1 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -11,12 +11,9 @@
extern const struct dma_map_ops *mips_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
- else
- return mips_dma_map_ops;
+ return mips_dma_map_ops;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index 308d051fc45c..7da99a908229 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -167,7 +167,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig);
}
- dev->dev.archdata.dma_ops = octeon_pci_dma_map_ops;
+ set_dma_ops(&dev->dev, octeon_pci_dma_map_ops);
return 0;
}
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 564e3927e005..737ef574b3ea 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -16,7 +16,7 @@
extern const struct dma_map_ops mn10300_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &mn10300_dma_ops;
}
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index aa00d839a64b..7b3c6f280293 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -12,7 +12,7 @@
extern const struct dma_map_ops nios2_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &nios2_dma_ops;
}
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 88acbedb4947..0c0075f17145 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -30,7 +30,7 @@
extern const struct dma_map_ops or1k_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &or1k_dma_map_ops;
}
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 1749073e44fc..5404c6a726b2 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -27,7 +27,7 @@ extern const struct dma_map_ops pcx_dma_ops;
extern const struct dma_map_ops *hppa_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return hppa_dma_ops;
}
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 49cbb0fca233..0245bfcaac32 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -6,7 +6,6 @@
#ifndef _ASM_POWERPC_DEVICE_H
#define _ASM_POWERPC_DEVICE_H
-struct dma_map_ops;
struct device_node;
#ifdef CONFIG_PPC64
struct pci_dn;
@@ -20,9 +19,6 @@ struct iommu_table;
* drivers/macintosh/macio_asic.c
*/
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
/*
* These two used to be a union. However, with the hybrid ops we need
* both so here we store both a DMA offset for direct mappings and
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 2ec3eadf336f..efdcf87c4c2f 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -78,22 +78,9 @@ extern struct dma_map_ops dma_iommu_ops;
#endif
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- /* We don't handle the NULL dev case for ISA for now. We could
- * do it via an out of line call but it is not needed for now. The
- * only ISA DMA device we support is the floppy and we have a hack
- * in the floppy driver directly to get a device for us.
- */
- if (unlikely(dev == NULL))
- return NULL;
-
- return dev->archdata.dma_ops;
-}
-
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- dev->archdata.dma_ops = ops;
+ return NULL;
}
/*
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index a19f831a4cc9..17ee719e799f 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -435,7 +435,7 @@ static inline void *ps3_system_bus_get_drvdata(
return dev_get_drvdata(&dev->core);
}
-/* These two need global scope for get_dma_ops(). */
+/* These two need global scope for get_arch_dma_ops(). */
extern struct bus_type ps3_system_bus_type;
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 03b98f1f98ec..41c749586bd2 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -33,7 +33,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
struct dev_archdata __maybe_unused *sd = &dev->archdata;
#ifdef CONFIG_SWIOTLB
- if (sd->max_direct_dma_addr && sd->dma_ops == &swiotlb_dma_ops)
+ if (sd->max_direct_dma_addr && dev->dma_ops == &swiotlb_dma_ops)
pfn = min_t(u64, pfn, sd->max_direct_dma_addr >> PAGE_SHIFT);
#endif
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index e1413e69e5fe..592a2a0f4860 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -692,7 +692,7 @@ static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action,
return 0;
/* We use the PCI DMA ops */
- dev->archdata.dma_ops = get_pci_dma_ops();
+ set_dma_ops(dev, get_pci_dma_ops());
cell_dma_dev_setup(dev);
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index e74adc4e7fd8..66bf56788260 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
*/
if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
!firmware_has_feature(FW_FEATURE_LPAR)) {
- dev->dev.archdata.dma_ops = &dma_direct_ops;
+ set_dma_ops(&dev->dev, &dma_direct_ops);
/*
* Set the coherent DMA mask to prevent the iommu
* being used unnecessarily
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 3182400cf48f..a00412d369f8 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
return 0;
/* We use the direct ops for localbus */
- dev->archdata.dma_ops = &dma_direct_ops;
+ set_dma_ops(dev, &dma_direct_ops);
return 0;
}
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index c81450d98794..b78041049146 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -756,11 +756,11 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
switch (dev->dev_type) {
case PS3_DEVICE_TYPE_IOC0:
- dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
+ set_dma_ops(&dev->core, &ps3_ioc0_dma_ops);
dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count);
break;
case PS3_DEVICE_TYPE_SB:
- dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
+ set_dma_ops(&dev->core, &ps3_sb_dma_ops);
dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count);
break;
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 2e36a0b8944a..05063fd9b05f 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -169,7 +169,7 @@ static int ibmebus_create_device(struct device_node *dn)
return -ENOMEM;
dev->dev.bus = &ibmebus_bus_type;
- dev->dev.archdata.dma_ops = &ibmebus_dma_ops;
+ set_dma_ops(&dev->dev, &ibmebus_dma_ops);
ret = of_device_add(dev);
if (ret)
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 7955a9799466..5203fc87f080 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,6 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 2776d205b1ff..3108b8dbe266 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -12,10 +12,8 @@
extern const struct dma_map_ops s390_pci_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 38e17d4d9884..5b4177d8f4c3 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -641,7 +641,7 @@ int pcibios_add_device(struct pci_dev *pdev)
int i;
pdev->dev.groups = zpci_attr_groups;
- pdev->dev.archdata.dma_ops = &s390_pci_dma_ops;
+ set_dma_ops(&pdev->dev, &s390_pci_dma_ops);
zpci_map_resources(pdev);
for (i = 0; i < PCI_BAR_COUNT; i++) {
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index a7382c34c241..d99008af5f73 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -4,7 +4,7 @@
extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void);
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 3d2babc0c4c6..69cc627779f2 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -24,14 +24,14 @@ extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
return leon_dma_ops;
#endif
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
- if (dev->bus == &pci_bus_type)
+ if (bus == &pci_bus_type)
return &pci32_dma_ops;
#endif
return dma_ops;
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 25f23ac7d361..1cf45422a0df 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -17,9 +17,6 @@
#define _ASM_TILE_DEVICE_H
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
/* Offset of the DMA address from the PA. */
dma_addr_t dma_offset;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 4a06cc75b856..bbc71a29b2c6 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -29,12 +29,9 @@ extern const struct dma_map_ops *gx_pci_dma_map_ops;
extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
- else
- return tile_dma_map_ops;
+ return tile_dma_map_ops;
}
static inline dma_addr_t get_dma_offset(struct device *dev)
@@ -59,11 +56,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- dev->archdata.dma_ops = ops;
-}
-
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index b2d0b4ced7e3..1b3ef26e77df 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -2,9 +2,6 @@
#define _ASM_X86_DEVICE_H
struct dev_archdata {
-#ifdef CONFIG_X86_DEV_DMA_OPS
- const struct dma_map_ops *dma_ops;
-#endif
#if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
void *iommu; /* hook for IOMMU specific extension */
#endif
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 5e4772886a1e..08a0838b83fb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -27,16 +27,9 @@ extern int panic_on_overflow;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
-#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
-#else
- if (unlikely(!dev) || !dev->archdata.dma_ops)
- return dma_ops;
- else
- return dev->archdata.dma_ops;
-#endif
}
bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 17f180148c80..87f9a1ff7cf6 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1177,7 +1177,7 @@ static int __init calgary_init(void)
tbl = find_iommu_table(&dev->dev);
if (translation_enabled(tbl))
- dev->dev.archdata.dma_ops = &calgary_dma_ops;
+ set_dma_ops(&dev->dev, &calgary_dma_ops);
}
return ret;
@@ -1201,7 +1201,7 @@ static int __init calgary_init(void)
calgary_disable_translation(dev);
calgary_free_bus(dev);
pci_dev_put(dev); /* Undo calgary_init_one()'s pci_dev_get() */
- dev->dev.archdata.dma_ops = NULL;
+ set_dma_ops(&dev->dev, NULL);
} while (1);
return ret;
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index a4fdfa7dcc1b..944e13c1a1e4 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -667,7 +667,7 @@ static void set_dma_domain_ops(struct pci_dev *pdev)
spin_lock(&dma_domain_list_lock);
list_for_each_entry(domain, &dma_domain_list, node) {
if (pci_domain_nr(pdev->bus) == domain->domain_nr) {
- pdev->dev.archdata.dma_ops = domain->dma_ops;
+ set_dma_ops(&pdev->dev, domain->dma_ops);
break;
}
}
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index aa3828823170..21008548f225 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -203,7 +203,7 @@ static void sta2x11_setup_pdev(struct pci_dev *pdev)
return;
pci_set_consistent_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
pci_set_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
- pdev->dev.archdata.dma_ops = &sta2x11_dma_ops;
+ set_dma_ops(&pdev->dev, &sta2x11_dma_ops);
/* We must enable all devices as master, for audio DMA to work */
pci_set_master(pdev);
@@ -223,7 +223,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
struct sta2x11_mapping *map;
- if (dev->archdata.dma_ops != &sta2x11_dma_ops) {
+ if (dev->dma_ops != &sta2x11_dma_ops) {
if (!dev->dma_mask)
return false;
return addr + size - 1 <= *dev->dma_mask;
@@ -247,7 +247,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
*/
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
- if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+ if (dev->dma_ops != &sta2x11_dma_ops)
return paddr;
return p2a(paddr, to_pci_dev(dev));
}
@@ -259,7 +259,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
*/
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
- if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+ if (dev->dma_ops != &sta2x11_dma_ops)
return daddr;
return a2p(daddr, to_pci_dev(dev));
}
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index a77d45d39f35..1deeb8ebbb1b 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -6,11 +6,7 @@
#ifndef _ASM_XTENSA_DEVICE_H
#define _ASM_XTENSA_DEVICE_H
-struct dma_map_ops;
-
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 50d23106cce0..c6140fa8c0be 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -20,12 +20,9 @@
extern const struct dma_map_ops xtensa_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
- else
- return &xtensa_dma_map_ops;
+ return &xtensa_dma_map_ops;
}
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 3fc3f8b5752b..20444a7d867d 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2524,7 +2524,7 @@ static void srpt_add_one(struct ib_device *device)
int i;
pr_debug("device = %p, device->dma_ops = %p\n", device,
- device->dma_ops);
+ get_dma_ops(device->dma_device));
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (!sdev)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3703fb9db419..246a88d96a97 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -515,7 +515,7 @@ static void iommu_uninit_device(struct device *dev)
iommu_group_remove_device(dev);
/* Remove dma-ops */
- dev->archdata.dma_ops = NULL;
+ set_dma_ops(dev, NULL);
/*
* We keep dev_data around for unplugged devices and reuse it when the
@@ -2164,7 +2164,7 @@ static int amd_iommu_add_device(struct device *dev)
dev_name(dev));
iommu_ignore_device(dev);
- dev->archdata.dma_ops = &nommu_dma_ops;
+ set_dma_ops(dev, &nommu_dma_ops);
goto out;
}
init_iommu_group(dev);
@@ -2181,7 +2181,7 @@ static int amd_iommu_add_device(struct device *dev)
if (domain->type == IOMMU_DOMAIN_IDENTITY)
dev_data->passthrough = true;
else
- dev->archdata.dma_ops = &amd_iommu_dma_ops;
+ set_dma_ops(dev, &amd_iommu_dma_ops);
out:
iommu_completion_wait(iommu);
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index c4b27a25662a..ee6e4ef370ea 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -158,7 +158,7 @@ mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
mbdev->dev.parent = pdev;
mbdev->id.device = id;
mbdev->id.vendor = MBUS_DEV_ANY_ID;
- mbdev->dev.archdata.dma_ops = dma_ops;
+ set_dma_ops(&mbdev->dev, dma_ops);
mbdev->dev.dma_mask = &mbdev->dev.coherent_dma_mask;
dma_set_mask(&mbdev->dev, DMA_BIT_MASK(64));
mbdev->dev.release = mbus_release_dev;
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index e5d377e97c86..d4d559cad6a1 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -154,7 +154,7 @@ scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
sdev->dev.parent = pdev;
sdev->id.device = id;
sdev->id.vendor = SCIF_DEV_ANY_ID;
- sdev->dev.archdata.dma_ops = dma_ops;
+ set_dma_ops(&sdev->dev, dma_ops);
sdev->dev.release = scif_release_dev;
sdev->hw_ops = hw_ops;
sdev->dnode = dnode;
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index b59551f5db65..c96a05f811f2 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -154,7 +154,7 @@ vop_register_device(struct device *pdev, int id,
vdev->dev.parent = pdev;
vdev->id.device = id;
vdev->id.vendor = VOP_DEV_ANY_ID;
- vdev->dev.archdata.dma_ops = (const struct dma_map_ops *)dma_ops;
+ set_dma_ops(&vdev->dev, dma_ops);
vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask;
dma_set_mask(&vdev->dev, DMA_BIT_MASK(64));
vdev->dev.release = vop_release_dev;
diff --git a/include/linux/device.h b/include/linux/device.h
index 491b4c0ca633..c7cb225d36b0 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -885,6 +885,8 @@ struct dev_links_info {
* a higher-level representation of the device.
*/
struct device {
+ const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
+
struct device *parent;
struct device_private *p;
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index f1da68b82c63..ab8710888ddf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -164,6 +164,18 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
#ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h>
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
+ return get_arch_dma_ops(dev ? dev->bus : NULL);
+}
+
+static inline void set_dma_ops(struct device *dev,
+ const struct dma_map_ops *dma_ops)
+{
+ dev->dma_ops = dma_ops;
+}
#else
/*
* Define the dma api to allow compilation but not linking of
--
2.11.0
^ permalink raw reply related [flat|nested] 18+ messages in thread
* [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 0:56 ` [PATCH 2/9] Move dma_ops from archdata into struct device Bart Van Assche
@ 2017-01-11 0:56 ` Bart Van Assche
2017-01-11 6:46 ` Greg Kroah-Hartman
2017-01-11 6:48 ` Greg Kroah-Hartman
2 siblings, 0 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 0:56 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma, linux-kernel, Greg Kroah-Hartman, Aurelien Jacquiot,
Catalin Marinas, Chris Zankel, David Howells, David S . Miller,
Fenghua Yu, Geert Uytterhoeven, Geoff Levand, H . Peter Anvin,
Haavard Skinnemoen, Hans-Christian Egtvedt, Helge Deller,
Ingo Molnar, James E . J . Bottomley, Jesper Nilsson,
Joerg Roedel, Jon Mason, Jonas Bonn, Ley Foon Tan, Mark Salter,
Max Filippov, Mikael Starvik, Muli Ben-Yehuda, Rich Felker,
Russell King, Stafford Horne, Stefan Kristiansson,
Thomas Gleixner, Tony Luck, Will Deacon, x86, Yoshinori Sato,
adi-buildroot-devel, iommu, linux-alpha, linux-am33-list,
linux-arm-kernel, linux-c6x-dev, linux-cris-kernel,
linux-hexagon, linux-ia64, linux-m68k, linux-metag, linux-mips,
linux-parisc, linux-pci, linux-s390, linux-sh, linux-snps-arc,
linux-xtensa, linuxppc-dev, nios2-dev, openrisc, sparclinux,
uclinux-h8-devel
Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
transfer data between memory and PCIe adapter. Because of performance
reasons it is important that the CPU cache is not flushed when such
drivers transfer data. Make this possible by allowing these drivers to
override the dma_map_ops pointer. Additionally, introduce the function
set_dma_ops() that will be used by a later patch in this series.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Geoff Levand <geoff@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: x86@kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: adi-buildroot-devel@lists.sourceforge.net
Cc: iommu@lists.linux-foundation.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-am33-list@redhat.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-cris-kernel@axis.com
Cc: linux-hexagon@vger.kernel.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-metag@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-rdma@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: sparclinux@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
---
arch/alpha/include/asm/dma-mapping.h | 2 +-
arch/arc/include/asm/dma-mapping.h | 2 +-
arch/arm/include/asm/device.h | 1 -
arch/arm/include/asm/dma-mapping.h | 17 ++++-------------
arch/arm64/include/asm/device.h | 1 -
arch/arm64/include/asm/dma-mapping.h | 8 ++++----
arch/arm64/mm/dma-mapping.c | 8 ++++----
arch/avr32/include/asm/dma-mapping.h | 2 +-
arch/blackfin/include/asm/dma-mapping.h | 2 +-
arch/c6x/include/asm/dma-mapping.h | 2 +-
arch/cris/include/asm/dma-mapping.h | 4 ++--
arch/frv/include/asm/dma-mapping.h | 2 +-
arch/h8300/include/asm/dma-mapping.h | 2 +-
arch/hexagon/include/asm/dma-mapping.h | 5 +----
arch/ia64/include/asm/dma-mapping.h | 5 ++++-
arch/m32r/include/asm/dma-mapping.h | 4 +---
arch/m68k/include/asm/dma-mapping.h | 2 +-
arch/metag/include/asm/dma-mapping.h | 2 +-
arch/microblaze/include/asm/dma-mapping.h | 2 +-
arch/mips/include/asm/device.h | 5 -----
arch/mips/include/asm/dma-mapping.h | 7 ++-----
arch/mips/pci/pci-octeon.c | 2 +-
arch/mn10300/include/asm/dma-mapping.h | 2 +-
arch/nios2/include/asm/dma-mapping.h | 2 +-
arch/openrisc/include/asm/dma-mapping.h | 2 +-
arch/parisc/include/asm/dma-mapping.h | 2 +-
arch/powerpc/include/asm/device.h | 4 ----
arch/powerpc/include/asm/dma-mapping.h | 17 ++---------------
arch/powerpc/include/asm/ps3.h | 2 +-
arch/powerpc/kernel/dma.c | 2 +-
arch/powerpc/platforms/cell/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/setup.c | 2 +-
arch/powerpc/platforms/ps3/system-bus.c | 4 ++--
arch/powerpc/platforms/pseries/ibmebus.c | 2 +-
arch/s390/include/asm/device.h | 1 -
arch/s390/include/asm/dma-mapping.h | 4 +---
arch/s390/pci/pci.c | 2 +-
arch/sh/include/asm/dma-mapping.h | 2 +-
arch/sparc/include/asm/dma-mapping.h | 4 ++--
arch/tile/include/asm/device.h | 3 ---
arch/tile/include/asm/dma-mapping.h | 12 ++----------
arch/x86/include/asm/device.h | 3 ---
arch/x86/include/asm/dma-mapping.h | 9 +--------
arch/x86/kernel/pci-calgary_64.c | 4 ++--
arch/x86/pci/common.c | 2 +-
arch/x86/pci/sta2x11-fixup.c | 8 ++++----
arch/xtensa/include/asm/device.h | 4 ----
arch/xtensa/include/asm/dma-mapping.h | 7 ++-----
drivers/infiniband/ulp/srpt/ib_srpt.c | 2 +-
drivers/iommu/amd_iommu.c | 6 +++---
drivers/misc/mic/bus/mic_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.c | 2 +-
drivers/misc/mic/bus/vop_bus.c | 2 +-
include/linux/device.h | 2 ++
include/linux/dma-mapping.h | 12 ++++++++++++
56 files changed, 85 insertions(+), 140 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index d3480562411d..5d53666935e6 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index fdff3aa60052..94285031c4fb 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -20,7 +20,7 @@
extern const struct dma_map_ops arc_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &arc_dma_ops;
}
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index d8a572f9c187..220ba207be91 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,6 @@
#define ASMARM_DEVICE_H
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMABOUNCE
struct dmabounce_device_info *dmabounce;
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 1aabd781306f..7c6d995fb935 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -18,23 +18,14 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
return &arm_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (xen_initial_domain())
- return xen_dma_ops;
- else
- return __generic_dma_ops(dev);
-}
-
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- BUG_ON(!dev);
- dev->archdata.dma_ops = ops;
+ return xen_initial_domain() ? xen_dma_ops : &arm_dma_ops;
}
#define HAVE_ARCH_DMA_SUPPORTED 1
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 00c678cc31e1..73d5bab015eb 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,6 @@
#define __ASM_DEVICE_H
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 1fedb43be712..ff311c67ab0c 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -29,8 +29,8 @@ extern const struct dma_map_ops dummy_dma_ops;
static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
/*
* We expect no ISA devices, and all other DMA masters are expected to
@@ -39,12 +39,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
if (xen_initial_domain())
return xen_dma_ops;
else
- return __generic_dma_ops(dev);
+ return __generic_dma_ops(NULL);
}
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index bcef6368d48f..9c80a3cbce59 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -837,7 +837,7 @@ static bool do_iommu_attach(struct device *dev, const struct iommu_ops *ops,
return false;
}
- dev->archdata.dma_ops = &iommu_dma_ops;
+ set_dma_ops(dev, &iommu_dma_ops);
return true;
}
@@ -941,7 +941,7 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
void arch_teardown_dma_ops(struct device *dev)
{
- dev->archdata.dma_ops = NULL;
+ set_dma_ops(dev, NULL);
}
#else
@@ -955,8 +955,8 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)
{
- if (!dev->archdata.dma_ops)
- dev->archdata.dma_ops = &swiotlb_dma_ops;
+ if (!dev->dma_ops)
+ set_dma_ops(dev, &swiotlb_dma_ops);
dev->archdata.dma_coherent = coherent;
__iommu_setup_dma_ops(dev, dma_base, size, iommu);
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index b2b43c0e0774..7388451f9905 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -6,7 +6,7 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
extern const struct dma_map_ops avr32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &avr32_dma_ops;
}
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 320fb50fbd41..04254ac36bed 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
extern const struct dma_map_ops bfin_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &bfin_dma_ops;
}
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 88258b9ebc8e..aca9f755e4f8 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -19,7 +19,7 @@
extern const struct dma_map_ops c6x_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &c6x_dma_ops;
}
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index aae4fbc0a656..256169de3743 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -4,12 +4,12 @@
#ifdef CONFIG_PCI
extern const struct dma_map_ops v32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &v32_dma_ops;
}
#else
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
BUG();
return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 150cc00544a8..354900917585 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -9,7 +9,7 @@ extern unsigned long __nongprelbss dma_coherent_mem_end;
extern const struct dma_map_ops frv_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &frv_dma_ops;
}
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index f804bca4c13f..847c7562e046 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops h8300_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &h8300_dma_map_ops;
}
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index b812e917cd95..d3a87bd9b686 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -34,11 +34,8 @@ extern int bad_dma_address;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (unlikely(dev == NULL))
- return NULL;
-
return dma_ops;
}
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 05e467d56d86..73ec3c6f4cfe 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -23,7 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction);
-#define get_dma_ops(dev) platform_dma_get_ops(dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+ return platform_dma_get_ops(NULL);
+}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 99c43d2f05dc..c01d9f52d228 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,10 +10,8 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 863509939d5a..9210e470771b 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops m68k_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &m68k_dma_ops;
}
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index c156a7ac732f..fad3dc3cb210 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops metag_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &metag_dma_ops;
}
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index c7faf2fb51d6..3fad5e722a66 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@
*/
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &dma_direct_ops;
}
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index ebc5c1265473..6aa796f1081a 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -6,12 +6,7 @@
#ifndef _ASM_MIPS_DEVICE_H
#define _ASM_MIPS_DEVICE_H
-struct dma_map_ops;
-
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
#ifdef CONFIG_DMA_PERDEV_COHERENT
/* Non-zero if DMA is coherent with CPU caches */
bool dma_coherent;
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index b59b084a7569..aba71385f9d1 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -11,12 +11,9 @@
extern const struct dma_map_ops *mips_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
- else
- return mips_dma_map_ops;
+ return mips_dma_map_ops;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index 308d051fc45c..7da99a908229 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -167,7 +167,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig);
}
- dev->dev.archdata.dma_ops = octeon_pci_dma_map_ops;
+ set_dma_ops(&dev->dev, octeon_pci_dma_map_ops);
return 0;
}
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 564e3927e005..737ef574b3ea 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -16,7 +16,7 @@
extern const struct dma_map_ops mn10300_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &mn10300_dma_ops;
}
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index aa00d839a64b..7b3c6f280293 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -12,7 +12,7 @@
extern const struct dma_map_ops nios2_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &nios2_dma_ops;
}
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 88acbedb4947..0c0075f17145 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -30,7 +30,7 @@
extern const struct dma_map_ops or1k_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &or1k_dma_map_ops;
}
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 1749073e44fc..5404c6a726b2 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -27,7 +27,7 @@ extern const struct dma_map_ops pcx_dma_ops;
extern const struct dma_map_ops *hppa_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return hppa_dma_ops;
}
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 49cbb0fca233..0245bfcaac32 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -6,7 +6,6 @@
#ifndef _ASM_POWERPC_DEVICE_H
#define _ASM_POWERPC_DEVICE_H
-struct dma_map_ops;
struct device_node;
#ifdef CONFIG_PPC64
struct pci_dn;
@@ -20,9 +19,6 @@ struct iommu_table;
* drivers/macintosh/macio_asic.c
*/
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
/*
* These two used to be a union. However, with the hybrid ops we need
* both so here we store both a DMA offset for direct mappings and
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 2ec3eadf336f..efdcf87c4c2f 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -78,22 +78,9 @@ extern struct dma_map_ops dma_iommu_ops;
#endif
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- /* We don't handle the NULL dev case for ISA for now. We could
- * do it via an out of line call but it is not needed for now. The
- * only ISA DMA device we support is the floppy and we have a hack
- * in the floppy driver directly to get a device for us.
- */
- if (unlikely(dev == NULL))
- return NULL;
-
- return dev->archdata.dma_ops;
-}
-
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- dev->archdata.dma_ops = ops;
+ return NULL;
}
/*
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index a19f831a4cc9..17ee719e799f 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -435,7 +435,7 @@ static inline void *ps3_system_bus_get_drvdata(
return dev_get_drvdata(&dev->core);
}
-/* These two need global scope for get_dma_ops(). */
+/* These two need global scope for get_arch_dma_ops(). */
extern struct bus_type ps3_system_bus_type;
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 03b98f1f98ec..41c749586bd2 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -33,7 +33,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
struct dev_archdata __maybe_unused *sd = &dev->archdata;
#ifdef CONFIG_SWIOTLB
- if (sd->max_direct_dma_addr && sd->dma_ops == &swiotlb_dma_ops)
+ if (sd->max_direct_dma_addr && dev->dma_ops == &swiotlb_dma_ops)
pfn = min_t(u64, pfn, sd->max_direct_dma_addr >> PAGE_SHIFT);
#endif
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index e1413e69e5fe..592a2a0f4860 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -692,7 +692,7 @@ static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action,
return 0;
/* We use the PCI DMA ops */
- dev->archdata.dma_ops = get_pci_dma_ops();
+ set_dma_ops(dev, get_pci_dma_ops());
cell_dma_dev_setup(dev);
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index e74adc4e7fd8..66bf56788260 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
*/
if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
!firmware_has_feature(FW_FEATURE_LPAR)) {
- dev->dev.archdata.dma_ops = &dma_direct_ops;
+ set_dma_ops(&dev->dev, &dma_direct_ops);
/*
* Set the coherent DMA mask to prevent the iommu
* being used unnecessarily
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 3182400cf48f..a00412d369f8 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
return 0;
/* We use the direct ops for localbus */
- dev->archdata.dma_ops = &dma_direct_ops;
+ set_dma_ops(dev, &dma_direct_ops);
return 0;
}
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index c81450d98794..b78041049146 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -756,11 +756,11 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
switch (dev->dev_type) {
case PS3_DEVICE_TYPE_IOC0:
- dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
+ set_dma_ops(&dev->core, &ps3_ioc0_dma_ops);
dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count);
break;
case PS3_DEVICE_TYPE_SB:
- dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
+ set_dma_ops(&dev->core, &ps3_sb_dma_ops);
dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count);
break;
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 2e36a0b8944a..05063fd9b05f 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -169,7 +169,7 @@ static int ibmebus_create_device(struct device_node *dn)
return -ENOMEM;
dev->dev.bus = &ibmebus_bus_type;
- dev->dev.archdata.dma_ops = &ibmebus_dma_ops;
+ set_dma_ops(&dev->dev, &ibmebus_dma_ops);
ret = of_device_add(dev);
if (ret)
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 7955a9799466..5203fc87f080 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,6 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 2776d205b1ff..3108b8dbe266 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -12,10 +12,8 @@
extern const struct dma_map_ops s390_pci_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 38e17d4d9884..5b4177d8f4c3 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -641,7 +641,7 @@ int pcibios_add_device(struct pci_dev *pdev)
int i;
pdev->dev.groups = zpci_attr_groups;
- pdev->dev.archdata.dma_ops = &s390_pci_dma_ops;
+ set_dma_ops(&pdev->dev, &s390_pci_dma_ops);
zpci_map_resources(pdev);
for (i = 0; i < PCI_BAR_COUNT; i++) {
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index a7382c34c241..d99008af5f73 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -4,7 +4,7 @@
extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void);
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 3d2babc0c4c6..69cc627779f2 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -24,14 +24,14 @@ extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
return leon_dma_ops;
#endif
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
- if (dev->bus == &pci_bus_type)
+ if (bus == &pci_bus_type)
return &pci32_dma_ops;
#endif
return dma_ops;
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 25f23ac7d361..1cf45422a0df 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -17,9 +17,6 @@
#define _ASM_TILE_DEVICE_H
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
/* Offset of the DMA address from the PA. */
dma_addr_t dma_offset;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 4a06cc75b856..bbc71a29b2c6 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -29,12 +29,9 @@ extern const struct dma_map_ops *gx_pci_dma_map_ops;
extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
- else
- return tile_dma_map_ops;
+ return tile_dma_map_ops;
}
static inline dma_addr_t get_dma_offset(struct device *dev)
@@ -59,11 +56,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- dev->archdata.dma_ops = ops;
-}
-
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index b2d0b4ced7e3..1b3ef26e77df 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -2,9 +2,6 @@
#define _ASM_X86_DEVICE_H
struct dev_archdata {
-#ifdef CONFIG_X86_DEV_DMA_OPS
- const struct dma_map_ops *dma_ops;
-#endif
#if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
void *iommu; /* hook for IOMMU specific extension */
#endif
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 5e4772886a1e..08a0838b83fb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -27,16 +27,9 @@ extern int panic_on_overflow;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
-#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
-#else
- if (unlikely(!dev) || !dev->archdata.dma_ops)
- return dma_ops;
- else
- return dev->archdata.dma_ops;
-#endif
}
bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 17f180148c80..87f9a1ff7cf6 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1177,7 +1177,7 @@ static int __init calgary_init(void)
tbl = find_iommu_table(&dev->dev);
if (translation_enabled(tbl))
- dev->dev.archdata.dma_ops = &calgary_dma_ops;
+ set_dma_ops(&dev->dev, &calgary_dma_ops);
}
return ret;
@@ -1201,7 +1201,7 @@ static int __init calgary_init(void)
calgary_disable_translation(dev);
calgary_free_bus(dev);
pci_dev_put(dev); /* Undo calgary_init_one()'s pci_dev_get() */
- dev->dev.archdata.dma_ops = NULL;
+ set_dma_ops(&dev->dev, NULL);
} while (1);
return ret;
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index a4fdfa7dcc1b..944e13c1a1e4 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -667,7 +667,7 @@ static void set_dma_domain_ops(struct pci_dev *pdev)
spin_lock(&dma_domain_list_lock);
list_for_each_entry(domain, &dma_domain_list, node) {
if (pci_domain_nr(pdev->bus) == domain->domain_nr) {
- pdev->dev.archdata.dma_ops = domain->dma_ops;
+ set_dma_ops(&pdev->dev, domain->dma_ops);
break;
}
}
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index aa3828823170..21008548f225 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -203,7 +203,7 @@ static void sta2x11_setup_pdev(struct pci_dev *pdev)
return;
pci_set_consistent_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
pci_set_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
- pdev->dev.archdata.dma_ops = &sta2x11_dma_ops;
+ set_dma_ops(&pdev->dev, &sta2x11_dma_ops);
/* We must enable all devices as master, for audio DMA to work */
pci_set_master(pdev);
@@ -223,7 +223,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
struct sta2x11_mapping *map;
- if (dev->archdata.dma_ops != &sta2x11_dma_ops) {
+ if (dev->dma_ops != &sta2x11_dma_ops) {
if (!dev->dma_mask)
return false;
return addr + size - 1 <= *dev->dma_mask;
@@ -247,7 +247,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
*/
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
- if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+ if (dev->dma_ops != &sta2x11_dma_ops)
return paddr;
return p2a(paddr, to_pci_dev(dev));
}
@@ -259,7 +259,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
*/
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
- if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+ if (dev->dma_ops != &sta2x11_dma_ops)
return daddr;
return a2p(daddr, to_pci_dev(dev));
}
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index a77d45d39f35..1deeb8ebbb1b 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -6,11 +6,7 @@
#ifndef _ASM_XTENSA_DEVICE_H
#define _ASM_XTENSA_DEVICE_H
-struct dma_map_ops;
-
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 50d23106cce0..c6140fa8c0be 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -20,12 +20,9 @@
extern const struct dma_map_ops xtensa_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
- else
- return &xtensa_dma_map_ops;
+ return &xtensa_dma_map_ops;
}
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 3fc3f8b5752b..20444a7d867d 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2524,7 +2524,7 @@ static void srpt_add_one(struct ib_device *device)
int i;
pr_debug("device = %p, device->dma_ops = %p\n", device,
- device->dma_ops);
+ get_dma_ops(device->dma_device));
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (!sdev)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3703fb9db419..246a88d96a97 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -515,7 +515,7 @@ static void iommu_uninit_device(struct device *dev)
iommu_group_remove_device(dev);
/* Remove dma-ops */
- dev->archdata.dma_ops = NULL;
+ set_dma_ops(dev, NULL);
/*
* We keep dev_data around for unplugged devices and reuse it when the
@@ -2164,7 +2164,7 @@ static int amd_iommu_add_device(struct device *dev)
dev_name(dev));
iommu_ignore_device(dev);
- dev->archdata.dma_ops = &nommu_dma_ops;
+ set_dma_ops(dev, &nommu_dma_ops);
goto out;
}
init_iommu_group(dev);
@@ -2181,7 +2181,7 @@ static int amd_iommu_add_device(struct device *dev)
if (domain->type == IOMMU_DOMAIN_IDENTITY)
dev_data->passthrough = true;
else
- dev->archdata.dma_ops = &amd_iommu_dma_ops;
+ set_dma_ops(dev, &amd_iommu_dma_ops);
out:
iommu_completion_wait(iommu);
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index c4b27a25662a..ee6e4ef370ea 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -158,7 +158,7 @@ mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
mbdev->dev.parent = pdev;
mbdev->id.device = id;
mbdev->id.vendor = MBUS_DEV_ANY_ID;
- mbdev->dev.archdata.dma_ops = dma_ops;
+ set_dma_ops(&mbdev->dev, dma_ops);
mbdev->dev.dma_mask = &mbdev->dev.coherent_dma_mask;
dma_set_mask(&mbdev->dev, DMA_BIT_MASK(64));
mbdev->dev.release = mbus_release_dev;
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index e5d377e97c86..d4d559cad6a1 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -154,7 +154,7 @@ scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
sdev->dev.parent = pdev;
sdev->id.device = id;
sdev->id.vendor = SCIF_DEV_ANY_ID;
- sdev->dev.archdata.dma_ops = dma_ops;
+ set_dma_ops(&sdev->dev, dma_ops);
sdev->dev.release = scif_release_dev;
sdev->hw_ops = hw_ops;
sdev->dnode = dnode;
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index b59551f5db65..c96a05f811f2 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -154,7 +154,7 @@ vop_register_device(struct device *pdev, int id,
vdev->dev.parent = pdev;
vdev->id.device = id;
vdev->id.vendor = VOP_DEV_ANY_ID;
- vdev->dev.archdata.dma_ops = (const struct dma_map_ops *)dma_ops;
+ set_dma_ops(&vdev->dev, dma_ops);
vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask;
dma_set_mask(&vdev->dev, DMA_BIT_MASK(64));
vdev->dev.release = vop_release_dev;
diff --git a/include/linux/device.h b/include/linux/device.h
index 491b4c0ca633..c7cb225d36b0 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -885,6 +885,8 @@ struct dev_links_info {
* a higher-level representation of the device.
*/
struct device {
+ const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
+
struct device *parent;
struct device_private *p;
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index f1da68b82c63..ab8710888ddf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -164,6 +164,18 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
#ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h>
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
+ return get_arch_dma_ops(dev ? dev->bus : NULL);
+}
+
+static inline void set_dma_ops(struct device *dev,
+ const struct dma_map_ops *dma_ops)
+{
+ dev->dma_ops = dma_ops;
+}
#else
/*
* Define the dma api to allow compilation but not linking of
--
2.11.0
^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 0:56 ` [PATCH 2/9] Move dma_ops from archdata into struct device Bart Van Assche
2017-01-11 0:56 ` Bart Van Assche
@ 2017-01-11 6:46 ` Greg Kroah-Hartman
2017-01-11 18:03 ` Bart Van Assche
2017-01-11 6:48 ` Greg Kroah-Hartman
2 siblings, 1 reply; 18+ messages in thread
From: Greg Kroah-Hartman @ 2017-01-11 6:46 UTC (permalink / raw)
To: Bart Van Assche
Cc: Doug Ledford, linux-rdma, linux-kernel, Aurelien Jacquiot,
Catalin Marinas, Chris Zankel, David Howells, David S . Miller,
Fenghua Yu, Geert Uytterhoeven, Geoff Levand, H . Peter Anvin,
Haavard Skinnemoen, Hans-Christian Egtvedt, Helge Deller,
Ingo Molnar, James E . J . Bottomley, Jesper Nilsson,
Joerg Roedel, Jon Mason, Jonas Bonn, Ley Foon Tan, Mark Salter,
Max Filippov, Mikael Starvik, Muli Ben-Yehuda, Rich Felker,
Russell King, Stafford Horne, Stefan Kristiansson,
Thomas Gleixner, Tony Luck, Will Deacon, x86, Yoshinori Sato,
adi-buildroot-devel, iommu, linux-alpha, linux-am33-list,
linux-arm-kernel, linux-c6x-dev, linux-cris-kernel,
linux-hexagon, linux-ia64, linux-m68k, linux-metag, linux-mips,
linux-parisc, linux-pci, linux-s390, linux-sh, linux-snps-arc,
linux-xtensa, linuxppc-dev, nios2-dev, openrisc, sparclinux,
uclinux-h8-devel
On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> transfer data between memory and PCIe adapter. Because of performance
> reasons it is important that the CPU cache is not flushed when such
> drivers transfer data. Make this possible by allowing these drivers to
> override the dma_map_ops pointer. Additionally, introduce the function
> set_dma_ops() that will be used by a later patch in this series.
>
> Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Chris Zankel <chris@zankel.net>
> Cc: David Howells <dhowells@redhat.com>
> Cc: David S. Miller <davem@davemloft.net>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: Geoff Levand <geoff@infradead.org>
> Cc: H. Peter Anvin <hpa@zytor.com>
> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: James E.J. Bottomley <jejb@parisc-linux.org>
> Cc: Jesper Nilsson <jesper.nilsson@axis.com>
> Cc: Joerg Roedel <joro@8bytes.org>
> Cc: Jon Mason <jdmason@kudzu.us>
> Cc: Jonas Bonn <jonas@southpole.se>
> Cc: Ley Foon Tan <lftan@altera.com>
> Cc: Mark Salter <msalter@redhat.com>
> Cc: Max Filippov <jcmvbkbc@gmail.com>
> Cc: Mikael Starvik <starvik@axis.com>
> Cc: Muli Ben-Yehuda <mulix@mulix.org>
> Cc: Rich Felker <dalias@libc.org>
> Cc: Russell King <linux@armlinux.org.uk>
> Cc: Stafford Horne <shorne@gmail.com>
> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: x86@kernel.org
> Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
> Cc: adi-buildroot-devel@lists.sourceforge.net
> Cc: iommu@lists.linux-foundation.org
> Cc: linux-alpha@vger.kernel.org
> Cc: linux-am33-list@redhat.com
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-c6x-dev@linux-c6x.org
> Cc: linux-cris-kernel@axis.com
> Cc: linux-hexagon@vger.kernel.org
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-m68k@lists.linux-m68k.org
> Cc: linux-metag@vger.kernel.org
> Cc: linux-mips@linux-mips.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linux-pci@vger.kernel.org
> Cc: linux-rdma@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: linux-sh@vger.kernel.org
> Cc: linux-snps-arc@lists.infradead.org
> Cc: linux-xtensa@linux-xtensa.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: nios2-dev@lists.rocketboards.org
> Cc: openrisc@lists.librecores.org
> Cc: sparclinux@vger.kernel.org
> Cc: uclinux-h8-devel@lists.sourceforge.jp
That's a crazy cc: list, you should break this up into smaller pieces,
otherwise it's going to bounce...
> diff --git a/include/linux/device.h b/include/linux/device.h
> index 491b4c0ca633..c7cb225d36b0 100644
> --- a/include/linux/device.h
> +++ b/include/linux/device.h
> @@ -885,6 +885,8 @@ struct dev_links_info {
> * a higher-level representation of the device.
> */
> struct device {
> + const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
> +
> struct device *parent;
>
> struct device_private *p;
Why not put this new pointer down with the other dma fields in this
structure? Any specific reason it needs to be first?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 0:56 ` [PATCH 2/9] Move dma_ops from archdata into struct device Bart Van Assche
2017-01-11 0:56 ` Bart Van Assche
2017-01-11 6:46 ` Greg Kroah-Hartman
@ 2017-01-11 6:48 ` Greg Kroah-Hartman
2017-01-11 18:17 ` Bart Van Assche
2 siblings, 1 reply; 18+ messages in thread
From: Greg Kroah-Hartman @ 2017-01-11 6:48 UTC (permalink / raw)
To: Bart Van Assche
Cc: Doug Ledford, linux-rdma, linux-kernel, Aurelien Jacquiot,
Catalin Marinas, Chris Zankel, David Howells, David S . Miller,
Fenghua Yu, Geert Uytterhoeven, Geoff Levand, H . Peter Anvin,
Haavard Skinnemoen, Hans-Christian Egtvedt, Helge Deller,
Ingo Molnar, James E . J . Bottomley, Jesper Nilsson,
Joerg Roedel, Jon Mason, Jonas Bonn, Ley Foon Tan, Mark Salter,
Max Filippov, Mikael Starvik, Muli Ben-Yehuda, Rich Felker,
Russell King, Stafford Horne, Stefan Kristiansson,
Thomas Gleixner, Tony Luck, Will Deacon, x86, Yoshinori Sato,
adi-buildroot-devel, iommu, linux-alpha, linux-am33-list,
linux-arm-kernel, linux-c6x-dev, linux-cris-kernel,
linux-hexagon, linux-ia64, linux-m68k, linux-metag, linux-mips,
linux-parisc, linux-pci, linux-s390, linux-sh, linux-snps-arc,
linux-xtensa, linuxppc-dev, nios2-dev, openrisc, sparclinux,
uclinux-h8-devel
On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> transfer data between memory and PCIe adapter. Because of performance
> reasons it is important that the CPU cache is not flushed when such
> drivers transfer data. Make this possible by allowing these drivers to
> override the dma_map_ops pointer. Additionally, introduce the function
> set_dma_ops() that will be used by a later patch in this series.
When you say things like "additionally", that's a huge flag that this
needs to be split up into multiple patches. No need to add
set_dma_ops() here in this patch.
And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
to keep the namespace sane, but that's probably a different set of
patches...
thanks,
greg k-h
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 6:46 ` Greg Kroah-Hartman
@ 2017-01-11 18:03 ` Bart Van Assche
2017-01-11 18:03 ` Bart Van Assche
2017-01-11 20:29 ` gregkh
0 siblings, 2 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 18:03 UTC (permalink / raw)
To: gregkh
Cc: linux-parisc, linux-pci, ysato, linux-xtensa, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, uclinux-h8-devel,
linux-hexagon, geoff, jcmvbkbc, linux, iommu, linux-c6x-dev,
linux-am33-list, linux-ia64, linux-cris-kernel, linux-mips,
linux-m68k, a-jacquiot, dalias, linux-metag, nios2-dev, linux-sh,
shorne, lftan, deller, jdmason, linux-alpha, openrisc,
sparclinux, chris, davem, joro, tglx, linuxppc-dev, x86,
fenghua.yu, jejb, linux-snps-arc, msalter, dledford,
adi-buildroot-devel, linux-arm-kernel, starvik, dhowells,
hskinnemoen, mingo, stefan.kristiansson, tony.luck, linux-kernel,
jonas, geert, egtvedt, will.deacon, linux-s390
On Wed, 2017-01-11 at 07:46 +0100, Greg Kroah-Hartman wrote:
> On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > transfer data between memory and PCIe adapter. Because of performance
> > reasons it is important that the CPU cache is not flushed when such
> > drivers transfer data. Make this possible by allowing these drivers to
> > override the dma_map_ops pointer. Additionally, introduce the function
> > set_dma_ops() that will be used by a later patch in this series.
> >
> > Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
> > Cc: [ ... ]
>
> That's a crazy cc: list, you should break this up into smaller pieces,
> otherwise it's going to bounce...
That's a subset of what scripts/get_maintainer.pl came up with. Suggestions
for a more appropriate cc-list for a patch like this that touches all
architectures would be welcome.
> > diff --git a/include/linux/device.h b/include/linux/device.h
> > index 491b4c0ca633..c7cb225d36b0 100644
> > --- a/include/linux/device.h
> > +++ b/include/linux/device.h
> > @@ -885,6 +885,8 @@ struct dev_links_info {
> > * a higher-level representation of the device.
> > */
> > struct device {
> > + const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
> > +
> > struct device *parent;
> >
> > struct device_private *p;
>
> Why not put this new pointer down with the other dma fields in this
> structure? Any specific reason it needs to be first?
Are there CPU architectures for which access to the first member of a
structure can be encoded and/or executed more efficiently than access to
other members of a structure? If not, I'm fine with moving the new pointer
further down.
Bart.
From msalter@redhat.com Wed Jan 11 19:14:55 2017
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Message-ID: <1484158481.6398.1.camel@redhat.com>
Subject: Re: [Linux-c6x-dev] [PATCH v2 7/7] uapi: export all headers under
uapi directories
From: Mark Salter <msalter@redhat.com>
To: Nicolas Dichtel <nicolas.dichtel@6wind.com>, arnd@arndb.de
Cc: linux-mips@linux-mips.org, alsa-devel@alsa-project.org,
linux-ia64@vger.kernel.org, linux-doc@vger.kernel.org,
airlied@linux.ie, linux-fbdev@vger.kernel.org,
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linux-media@vger.kernel.org, uclinux-h8-devel@lists.sourceforge.jp,
linux-xtensa@linux-xtensa.org, linux-kbuild@vger.kernel.org,
adi-buildroot-devel@lists.sourceforge.net,
linux-raid@vger.kernel.org, linux-m68k@vger.kernel.org,
openrisc@lists.librecores.org, linux-metag@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-nfs@vger.kernel.org,
linux-parisc@vger.kernel.org, linux-cris-kernel@axis.com,
netdev@vger.kernel.org, linux-mmc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
mmarek@suse.com, netfilter-devel@vger.kernel.org,
linux-alpha@vger.kernel.org, nios2-dev@lists.rocketboards.org,
linuxppc-dev@lists.ozlabs.org, davem@davemloft.net
Date: Wed, 11 Jan 2017 13:14:41 -0500
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On Fri, 2017-01-06 at 10:43 +0100, Nicolas Dichtel wrote:
> Regularly, when a new header is created in include/uapi/, the developer
> forgets to add it in the corresponding Kbuild file. This error is usually
> detected after the release is out.
>
> In fact, all headers under uapi directories should be exported, thus it's
> useless to have an exhaustive list.
>
> After this patch, the following files, which were not exported, are now
> exported (with make headers_install_all):
> asm-unicore32/shmparam.h
> asm-unicore32/ucontext.h
> asm-hexagon/shmparam.h
> asm-mips/ucontext.h
> asm-mips/hwcap.h
> asm-mips/reg.h
> drm/vgem_drm.h
> drm/armada_drm.h
> drm/omap_drm.h
> drm/etnaviv_drm.h
> asm-tile/shmparam.h
> asm-blackfin/shmparam.h
> asm-blackfin/ucontext.h
> asm-powerpc/perf_regs.h
> rdma/qedr-abi.h
> asm-parisc/kvm_para.h
> asm-openrisc/shmparam.h
> asm-nios2/kvm_para.h
> asm-nios2/ucontext.h
> asm-sh/kvm_para.h
> asm-sh/ucontext.h
> asm-xtensa/kvm_para.h
> asm-avr32/kvm_para.h
> asm-m32r/kvm_para.h
> asm-h8300/shmparam.h
> asm-h8300/ucontext.h
> asm-metag/kvm_para.h
> asm-metag/shmparam.h
> asm-metag/ucontext.h
> asm-m68k/kvm_para.h
> asm-m68k/shmparam.h
> linux/bcache.h
> linux/kvm.h
> linux/kvm_para.h
> linux/kfd_ioctl.h
> linux/cryptouser.h
> linux/kcm.h
> linux/kcov.h
> linux/seg6_iptunnel.h
> linux/stm.h
> linux/genwqe
> linux/genwqe/.install
> linux/genwqe/genwqe_card.h
> linux/genwqe/..install.cmd
> linux/seg6.h
> linux/cifs
> linux/cifs/.install
> linux/cifs/cifs_mount.h
> linux/cifs/..install.cmd
> linux/auto_dev-ioctl.h
>
> Thanks to Julien Floret <julien.floret@6wind.com> for the tip to get all
> subdirs with a pure makefile command.
>
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
> ---
>  Documentation/kbuild/makefiles.txt          |  41 ++-
>  arch/alpha/include/uapi/asm/Kbuild          |  41 ---
>  arch/arc/include/uapi/asm/Kbuild            |   3 -
>  arch/arm/include/uapi/asm/Kbuild            |  17 -
>  arch/arm64/include/uapi/asm/Kbuild          |  18 --
>  arch/avr32/include/uapi/asm/Kbuild          |  20 --
>  arch/blackfin/include/uapi/asm/Kbuild       |  17 -
>  arch/c6x/include/uapi/asm/Kbuild            |   8 -
> Â arch/cris/include/uapi/arch-v10/arch/Kbuild |Â Â Â 5 -
> Â arch/cris/include/uapi/arch-v32/arch/Kbuild |Â Â Â 3 -
>  arch/cris/include/uapi/asm/Kbuild           |  43 +--
>  arch/frv/include/uapi/asm/Kbuild            |  33 --
>  arch/h8300/include/uapi/asm/Kbuild          |  28 --
>  arch/hexagon/include/asm/Kbuild             |   3 -
>  arch/hexagon/include/uapi/asm/Kbuild        |  13 -
>  arch/ia64/include/uapi/asm/Kbuild           |  45 ---
>  arch/m32r/include/uapi/asm/Kbuild           |  31 --
>  arch/m68k/include/uapi/asm/Kbuild           |  24 --
>  arch/metag/include/uapi/asm/Kbuild          |   8 -
>  arch/microblaze/include/uapi/asm/Kbuild     |  32 --
>  arch/mips/include/uapi/asm/Kbuild           |  37 ---
>  arch/mn10300/include/uapi/asm/Kbuild        |  32 --
>  arch/nios2/include/uapi/asm/Kbuild          |   4 +-
>  arch/openrisc/include/asm/Kbuild            |   3 -
>  arch/openrisc/include/uapi/asm/Kbuild       |   8 -
>  arch/parisc/include/uapi/asm/Kbuild         |  28 --
>  arch/powerpc/include/uapi/asm/Kbuild        |  45 ---
>  arch/s390/include/uapi/asm/Kbuild           |  52 ---
>  arch/score/include/asm/Kbuild               |   4 -
>  arch/score/include/uapi/asm/Kbuild          |  32 --
>  arch/sh/include/uapi/asm/Kbuild             |  23 --
>  arch/sparc/include/uapi/asm/Kbuild          |  48 ---
>  arch/tile/include/asm/Kbuild                |   3 -
>  arch/tile/include/uapi/arch/Kbuild          |  17 -
>  arch/tile/include/uapi/asm/Kbuild           |  19 +-
>  arch/unicore32/include/uapi/asm/Kbuild      |   6 -
>  arch/x86/include/uapi/asm/Kbuild            |  59 ----
>  arch/xtensa/include/uapi/asm/Kbuild         |  23 --
>  include/Kbuild                              |   2 -
>  include/asm-generic/Kbuild.asm              |   1 -
>  include/scsi/fc/Kbuild                      |   0
>  include/uapi/Kbuild                         |  15 -
>  include/uapi/asm-generic/Kbuild             |  36 ---
>  include/uapi/asm-generic/Kbuild.asm         |  62 ++--
>  include/uapi/drm/Kbuild                     |  22 --
>  include/uapi/linux/Kbuild                   | 482 ----------------------------
>  include/uapi/linux/android/Kbuild           |   2 -
>  include/uapi/linux/byteorder/Kbuild         |   3 -
>  include/uapi/linux/caif/Kbuild              |   3 -
>  include/uapi/linux/can/Kbuild               |   6 -
>  include/uapi/linux/dvb/Kbuild               |   9 -
>  include/uapi/linux/hdlc/Kbuild              |   2 -
>  include/uapi/linux/hsi/Kbuild               |   2 -
>  include/uapi/linux/iio/Kbuild               |   3 -
>  include/uapi/linux/isdn/Kbuild              |   2 -
>  include/uapi/linux/mmc/Kbuild               |   2 -
>  include/uapi/linux/netfilter/Kbuild         |  89 -----
>  include/uapi/linux/netfilter/ipset/Kbuild   |   5 -
>  include/uapi/linux/netfilter_arp/Kbuild     |   3 -
>  include/uapi/linux/netfilter_bridge/Kbuild  |  18 --
>  include/uapi/linux/netfilter_ipv4/Kbuild    |  10 -
>  include/uapi/linux/netfilter_ipv6/Kbuild    |  13 -
>  include/uapi/linux/nfsd/Kbuild              |   6 -
>  include/uapi/linux/raid/Kbuild              |   3 -
>  include/uapi/linux/spi/Kbuild               |   2 -
>  include/uapi/linux/sunrpc/Kbuild            |   2 -
>  include/uapi/linux/tc_act/Kbuild            |  15 -
>  include/uapi/linux/tc_ematch/Kbuild         |   5 -
>  include/uapi/linux/usb/Kbuild               |  12 -
>  include/uapi/linux/wimax/Kbuild             |   2 -
>  include/uapi/misc/Kbuild                    |   2 -
>  include/uapi/mtd/Kbuild                     |   6 -
>  include/uapi/rdma/Kbuild                    |  18 --
>  include/uapi/rdma/hfi/Kbuild                |   2 -
>  include/uapi/scsi/Kbuild                    |   6 -
>  include/uapi/scsi/fc/Kbuild                 |   5 -
>  include/uapi/sound/Kbuild                   |  16 -
>  include/uapi/video/Kbuild                   |   4 -
>  include/uapi/xen/Kbuild                     |   5 -
>  include/video/Kbuild                        |   0
>  scripts/Makefile.headersinst                |  39 +--
> Â 81 files changed, 73 insertions(+), 1745 deletions(-)
> Â delete mode 100644 arch/cris/include/uapi/arch-v10/arch/Kbuild
> Â delete mode 100644 arch/cris/include/uapi/arch-v32/arch/Kbuild
> Â delete mode 100644 arch/tile/include/uapi/arch/Kbuild
> Â delete mode 100644 include/Kbuild
> Â delete mode 100644 include/asm-generic/Kbuild.asm
> Â delete mode 100644 include/scsi/fc/Kbuild
> Â delete mode 100644 include/uapi/Kbuild
> Â delete mode 100644 include/uapi/asm-generic/Kbuild
> Â delete mode 100644 include/uapi/drm/Kbuild
> Â delete mode 100644 include/uapi/linux/Kbuild
> Â delete mode 100644 include/uapi/linux/android/Kbuild
> Â delete mode 100644 include/uapi/linux/byteorder/Kbuild
> Â delete mode 100644 include/uapi/linux/caif/Kbuild
> Â delete mode 100644 include/uapi/linux/can/Kbuild
> Â delete mode 100644 include/uapi/linux/dvb/Kbuild
> Â delete mode 100644 include/uapi/linux/hdlc/Kbuild
> Â delete mode 100644 include/uapi/linux/hsi/Kbuild
> Â delete mode 100644 include/uapi/linux/iio/Kbuild
> Â delete mode 100644 include/uapi/linux/isdn/Kbuild
> Â delete mode 100644 include/uapi/linux/mmc/Kbuild
> Â delete mode 100644 include/uapi/linux/netfilter/Kbuild
> Â delete mode 100644 include/uapi/linux/netfilter/ipset/Kbuild
> Â delete mode 100644 include/uapi/linux/netfilter_arp/Kbuild
> Â delete mode 100644 include/uapi/linux/netfilter_bridge/Kbuild
> Â delete mode 100644 include/uapi/linux/netfilter_ipv4/Kbuild
> Â delete mode 100644 include/uapi/linux/netfilter_ipv6/Kbuild
> Â delete mode 100644 include/uapi/linux/nfsd/Kbuild
> Â delete mode 100644 include/uapi/linux/raid/Kbuild
> Â delete mode 100644 include/uapi/linux/spi/Kbuild
> Â delete mode 100644 include/uapi/linux/sunrpc/Kbuild
> Â delete mode 100644 include/uapi/linux/tc_act/Kbuild
> Â delete mode 100644 include/uapi/linux/tc_ematch/Kbuild
> Â delete mode 100644 include/uapi/linux/usb/Kbuild
> Â delete mode 100644 include/uapi/linux/wimax/Kbuild
> Â delete mode 100644 include/uapi/misc/Kbuild
> Â delete mode 100644 include/uapi/mtd/Kbuild
> Â delete mode 100644 include/uapi/rdma/Kbuild
> Â delete mode 100644 include/uapi/rdma/hfi/Kbuild
> Â delete mode 100644 include/uapi/scsi/Kbuild
> Â delete mode 100644 include/uapi/scsi/fc/Kbuild
> Â delete mode 100644 include/uapi/sound/Kbuild
> Â delete mode 100644 include/uapi/video/Kbuild
> Â delete mode 100644 include/uapi/xen/Kbuild
> Â delete mode 100644 include/video/Kbuild
>
> diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
> index 37b525d329ae..53e31061ff18 100644
> --- a/Documentation/kbuild/makefiles.txt
> +++ b/Documentation/kbuild/makefiles.txt
> @@ -44,7 +44,7 @@ This document describes the Linux kernel Makefiles.
> Â Â Â Â --- 6.11 Post-link pass
> Â
> Â === 7 Kbuild syntax for exported headers
> - --- 7.1 header-y
> + --- 7.1 subdir-y
> Â --- 7.2 genhdr-y
> Â --- 7.3 generic-y
> Â --- 7.4 generated-y
> @@ -1235,7 +1235,7 @@ When kbuild executes, the following steps are followed (roughly):
> Â that may be shared between individual architectures.
> Â The recommended approach how to use a generic header file is
> Â to list the file in the Kbuild file.
> - See "7.4 generic-y" for further info on syntax etc.
> + See "7.3 generic-y" for further info on syntax etc.
> Â
> Â --- 6.11 Post-link pass
> Â
> @@ -1262,37 +1262,36 @@ The pre-processing does:
> Â - drop include of compiler.h
> Â - drop all sections that are kernel internal (guarded by ifdef __KERNEL__)
> Â
> -Each relevant directory contains a file name "Kbuild" which specifies the
> -headers to be exported.
> +All headers under include/uapi/, include/generated/uapi/,
> +arch/<arch>/include/uapi/asm/ and arch/<arch>/include/generated/uapi/asm/
> +are exported.
> +
> +A Kbuild file may be defined under arch/<arch>/include/uapi/asm/ and
> +arch/<arch>/include/asm/ to list asm files coming from asm-generic.
> Â See subsequent chapter for the syntax of the Kbuild file.
> Â
> - --- 7.1 header-y
> + --- 7.1 subdir-y
> Â
> - header-y specifies header files to be exported.
> + subdir-y may be used to specify a subdirectory to be exported.
> Â
> Â Example:
> - #include/linux/Kbuild
> - header-y += usb/
> - header-y += aio_abi.h
> + #arch/cris/include/uapi/asm/Kbuild
> + subdir-y += ../arch-v10/arch/
> + subdir-y += ../arch-v32/arch/
> Â
> - The convention is to list one file per line and
> + The convention is to list one subdir per line and
> Â preferably in alphabetic order.
> Â
> - header-y also specifies which subdirectories to visit.
> - A subdirectory is identified by a trailing '/' which
> - can be seen in the example above for the usb subdirectory.
> -
> - Subdirectories are visited before their parent directories.
> -
> Â --- 7.2 genhdr-y
> Â
> - genhdr-y specifies generated files to be exported.
> - Generated files are special as they need to be looked
> - up in another directory when doing 'make O=...' builds.
> + genhdr-y specifies asm files to be generated.
> Â
> Â Example:
> - #include/linux/Kbuild
> - genhdr-y += version.h
> + #arch/x86/include/uapi/asm/Kbuild
> + genhdr-y += unistd_32.h
> + genhdr-y += unistd_64.h
> + genhdr-y += unistd_x32.h
> +
> Â
> Â --- 7.3 generic-y
> Â
> diff --git a/arch/alpha/include/uapi/asm/Kbuild b/arch/alpha/include/uapi/asm/Kbuild
> index d96f2ef5b639..b15bf6bc0e94 100644
> --- a/arch/alpha/include/uapi/asm/Kbuild
> +++ b/arch/alpha/include/uapi/asm/Kbuild
> @@ -1,43 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += a.out.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += compiler.h
> -header-y += console.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += fpu.h
> -header-y += gentrap.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += pal.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += reg.h
> -header-y += regdef.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sysinfo.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild
> index f50d02df78d5..b15bf6bc0e94 100644
> --- a/arch/arc/include/uapi/asm/Kbuild
> +++ b/arch/arc/include/uapi/asm/Kbuild
> @@ -1,5 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -header-y += elf.h
> -header-y += page.h
> -header-y += cachectl.h
> diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
> index 46a76cd6acb6..607f702c2d62 100644
> --- a/arch/arm/include/uapi/asm/Kbuild
> +++ b/arch/arm/include/uapi/asm/Kbuild
> @@ -1,23 +1,6 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += fcntl.h
> -header-y += hwcap.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += perf_regs.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += unistd.h
> Â genhdr-y += unistd-common.h
> Â genhdr-y += unistd-oabi.h
> Â genhdr-y += unistd-eabi.h
> diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
> index 825b0fe51c2b..13a97aa2285f 100644
> --- a/arch/arm64/include/uapi/asm/Kbuild
> +++ b/arch/arm64/include/uapi/asm/Kbuild
> @@ -2,21 +2,3 @@
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> Â generic-y += kvm_para.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += fcntl.h
> -header-y += hwcap.h
> -header-y += kvm_para.h
> -header-y += perf_regs.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/arch/avr32/include/uapi/asm/Kbuild b/arch/avr32/include/uapi/asm/Kbuild
> index 08d8a3d76ea8..610395083364 100644
> --- a/arch/avr32/include/uapi/asm/Kbuild
> +++ b/arch/avr32/include/uapi/asm/Kbuild
> @@ -1,26 +1,6 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> Â generic-y += bitsperlong.h
> Â generic-y += errno.h
> Â generic-y += fcntl.h
> diff --git a/arch/blackfin/include/uapi/asm/Kbuild b/arch/blackfin/include/uapi/asm/Kbuild
> index 0bd28f77abc3..b15bf6bc0e94 100644
> --- a/arch/blackfin/include/uapi/asm/Kbuild
> +++ b/arch/blackfin/include/uapi/asm/Kbuild
> @@ -1,19 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += bfin_sport.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += fcntl.h
> -header-y += fixed_code.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += unistd.h
> diff --git a/arch/c6x/include/uapi/asm/Kbuild b/arch/c6x/include/uapi/asm/Kbuild
> index e9bc2b2b8147..13a97aa2285f 100644
> --- a/arch/c6x/include/uapi/asm/Kbuild
> +++ b/arch/c6x/include/uapi/asm/Kbuild
> @@ -2,11 +2,3 @@
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> Â generic-y += kvm_para.h
> -
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += swab.h
> -header-y += unistd.h
Acked-by: Mark Salter <msalter@redhat.com>
> diff --git a/arch/cris/include/uapi/arch-v10/arch/Kbuild b/arch/cris/include/uapi/arch-v10/arch/Kbuild
> deleted file mode 100644
> index 9048c87a782b..000000000000
> --- a/arch/cris/include/uapi/arch-v10/arch/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += sv_addr.agh
> -header-y += sv_addr_ag.h
> -header-y += svinto.h
> -header-y += user.h
> diff --git a/arch/cris/include/uapi/arch-v32/arch/Kbuild b/arch/cris/include/uapi/arch-v32/arch/Kbuild
> deleted file mode 100644
> index 59efffd16b61..000000000000
> --- a/arch/cris/include/uapi/arch-v32/arch/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += cryptocop.h
> -header-y += user.h
> diff --git a/arch/cris/include/uapi/asm/Kbuild b/arch/cris/include/uapi/asm/Kbuild
> index d5564a0ae66a..d0c5471856e0 100644
> --- a/arch/cris/include/uapi/asm/Kbuild
> +++ b/arch/cris/include/uapi/asm/Kbuild
> @@ -1,44 +1,5 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> -header-y += ../arch-v10/arch/
> -header-y += ../arch-v32/arch/
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += elf_v10.h
> -header-y += elf_v32.h
> -header-y += errno.h
> -header-y += ethernet.h
> -header-y += etraxgpio.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += ptrace_v10.h
> -header-y += ptrace_v32.h
> -header-y += resource.h
> -header-y += rs485.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sync_serial.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> +subdir-y += ../arch-v10/arch/
> +subdir-y += ../arch-v32/arch/
> diff --git a/arch/frv/include/uapi/asm/Kbuild b/arch/frv/include/uapi/asm/Kbuild
> index 42a2b33461c0..b15bf6bc0e94 100644
> --- a/arch/frv/include/uapi/asm/Kbuild
> +++ b/arch/frv/include/uapi/asm/Kbuild
> @@ -1,35 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += registers.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild
> index fb6101a5d4f1..b15bf6bc0e94 100644
> --- a/arch/h8300/include/uapi/asm/Kbuild
> +++ b/arch/h8300/include/uapi/asm/Kbuild
> @@ -1,30 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += siginfo.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
> index db8ddabc6bd2..f3b1ceb5c1e4 100644
> --- a/arch/hexagon/include/asm/Kbuild
> +++ b/arch/hexagon/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ucontext.h
> -
> Â generic-y += auxvec.h
> Â generic-y += barrier.h
> Â generic-y += bug.h
> diff --git a/arch/hexagon/include/uapi/asm/Kbuild b/arch/hexagon/include/uapi/asm/Kbuild
> index c31706c38631..b15bf6bc0e94 100644
> --- a/arch/hexagon/include/uapi/asm/Kbuild
> +++ b/arch/hexagon/include/uapi/asm/Kbuild
> @@ -1,15 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += registers.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += swab.h
> -header-y += unistd.h
> -header-y += user.h
> diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild
> index 891002bbb995..13a97aa2285f 100644
> --- a/arch/ia64/include/uapi/asm/Kbuild
> +++ b/arch/ia64/include/uapi/asm/Kbuild
> @@ -2,48 +2,3 @@
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> Â generic-y += kvm_para.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += break.h
> -header-y += byteorder.h
> -header-y += cmpxchg.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += fpu.h
> -header-y += gcc_intrin.h
> -header-y += ia64regs.h
> -header-y += intel_intrin.h
> -header-y += intrinsics.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += perfmon.h
> -header-y += perfmon_default_smpl.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += ptrace_offsets.h
> -header-y += resource.h
> -header-y += rse.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += ustack.h
> diff --git a/arch/m32r/include/uapi/asm/Kbuild b/arch/m32r/include/uapi/asm/Kbuild
> index 43937a61d6cf..b15bf6bc0e94 100644
> --- a/arch/m32r/include/uapi/asm/Kbuild
> +++ b/arch/m32r/include/uapi/asm/Kbuild
> @@ -1,33 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild
> index 6a2d257bdfb2..64368077235a 100644
> --- a/arch/m68k/include/uapi/asm/Kbuild
> +++ b/arch/m68k/include/uapi/asm/Kbuild
> @@ -9,27 +9,3 @@ generic-y += socket.h
> Â generic-y += sockios.h
> Â generic-y += termbits.h
> Â generic-y += termios.h
> -
> -header-y += a.out.h
> -header-y += bootinfo.h
> -header-y += bootinfo-amiga.h
> -header-y += bootinfo-apollo.h
> -header-y += bootinfo-atari.h
> -header-y += bootinfo-hp300.h
> -header-y += bootinfo-mac.h
> -header-y += bootinfo-q40.h
> -header-y += bootinfo-vme.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += fcntl.h
> -header-y += ioctls.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += unistd.h
> diff --git a/arch/metag/include/uapi/asm/Kbuild b/arch/metag/include/uapi/asm/Kbuild
> index ab78be2b6eb0..b29731ebd7a9 100644
> --- a/arch/metag/include/uapi/asm/Kbuild
> +++ b/arch/metag/include/uapi/asm/Kbuild
> @@ -1,14 +1,6 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> -header-y += byteorder.h
> -header-y += ech.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += swab.h
> -header-y += unistd.h
> -
> Â generic-y += mman.h
> Â generic-y += resource.h
> Â generic-y += setup.h
> diff --git a/arch/microblaze/include/uapi/asm/Kbuild b/arch/microblaze/include/uapi/asm/Kbuild
> index 1aac99f87df1..2178c78c7c1a 100644
> --- a/arch/microblaze/include/uapi/asm/Kbuild
> +++ b/arch/microblaze/include/uapi/asm/Kbuild
> @@ -2,35 +2,3 @@
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> Â generic-y += types.h
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += unistd.h
> diff --git a/arch/mips/include/uapi/asm/Kbuild b/arch/mips/include/uapi/asm/Kbuild
> index f2cf41461146..a0266feba9e6 100644
> --- a/arch/mips/include/uapi/asm/Kbuild
> +++ b/arch/mips/include/uapi/asm/Kbuild
> @@ -2,40 +2,3 @@
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> Â generic-y += ipcbuf.h
> -
> -header-y += auxvec.h
> -header-y += bitfield.h
> -header-y += bitsperlong.h
> -header-y += break.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += inst.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += sgidefs.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += sysmips.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/mn10300/include/uapi/asm/Kbuild b/arch/mn10300/include/uapi/asm/Kbuild
> index 040178cdb3eb..b15bf6bc0e94 100644
> --- a/arch/mn10300/include/uapi/asm/Kbuild
> +++ b/arch/mn10300/include/uapi/asm/Kbuild
> @@ -1,34 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild
> index e0bb972a50d7..766455d0d291 100644
> --- a/arch/nios2/include/uapi/asm/Kbuild
> +++ b/arch/nios2/include/uapi/asm/Kbuild
> @@ -1,5 +1,3 @@
> +# UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += elf.h
> -
> Â generic-y += ucontext.h
> diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
> index 2832f031fb11..561915716fd9 100644
> --- a/arch/openrisc/include/asm/Kbuild
> +++ b/arch/openrisc/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ucontext.h
> -
> Â generic-y += atomic.h
> Â generic-y += auxvec.h
> Â generic-y += barrier.h
> diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild
> index 80761eb82b5f..b15bf6bc0e94 100644
> --- a/arch/openrisc/include/uapi/asm/Kbuild
> +++ b/arch/openrisc/include/uapi/asm/Kbuild
> @@ -1,10 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += byteorder.h
> -header-y += elf.h
> -header-y += kvm_para.h
> -header-y += param.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += unistd.h
> diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild
> index 348356c99514..3971c60a7e7f 100644
> --- a/arch/parisc/include/uapi/asm/Kbuild
> +++ b/arch/parisc/include/uapi/asm/Kbuild
> @@ -2,31 +2,3 @@
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> Â generic-y += resource.h
> -
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += pdc.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/powerpc/include/uapi/asm/Kbuild b/arch/powerpc/include/uapi/asm/Kbuild
> index dab3717e3ea0..b15bf6bc0e94 100644
> --- a/arch/powerpc/include/uapi/asm/Kbuild
> +++ b/arch/powerpc/include/uapi/asm/Kbuild
> @@ -1,47 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += bootx.h
> -header-y += byteorder.h
> -header-y += cputable.h
> -header-y += eeh.h
> -header-y += elf.h
> -header-y += epapr_hcalls.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += nvram.h
> -header-y += opal-prd.h
> -header-y += param.h
> -header-y += perf_event.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ps3fb.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += spu_info.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += tm.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild
> index bf736e764cb4..b15bf6bc0e94 100644
> --- a/arch/s390/include/uapi/asm/Kbuild
> +++ b/arch/s390/include/uapi/asm/Kbuild
> @@ -1,54 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += chpid.h
> -header-y += chsc.h
> -header-y += clp.h
> -header-y += cmb.h
> -header-y += dasd.h
> -header-y += debug.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += hypfs.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += kvm_perf.h
> -header-y += kvm_virtio.h
> -header-y += mman.h
> -header-y += monwriter.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += qeth.h
> -header-y += resource.h
> -header-y += schid.h
> -header-y += sclp_ctl.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sie.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += tape390.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += virtio-ccw.h
> -header-y += vtoc.h
> -header-y += zcrypt.h
> diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild
> index a05218ff3fe4..128ca7ec0220 100644
> --- a/arch/score/include/asm/Kbuild
> +++ b/arch/score/include/asm/Kbuild
> @@ -1,7 +1,3 @@
> -
> -header-y +=
> -
> -
> Â generic-y += barrier.h
> Â generic-y += clkdev.h
> Â generic-y += cputime.h
> diff --git a/arch/score/include/uapi/asm/Kbuild b/arch/score/include/uapi/asm/Kbuild
> index 040178cdb3eb..b15bf6bc0e94 100644
> --- a/arch/score/include/uapi/asm/Kbuild
> +++ b/arch/score/include/uapi/asm/Kbuild
> @@ -1,34 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/arch/sh/include/uapi/asm/Kbuild b/arch/sh/include/uapi/asm/Kbuild
> index 60613ae78513..b15bf6bc0e94 100644
> --- a/arch/sh/include/uapi/asm/Kbuild
> +++ b/arch/sh/include/uapi/asm/Kbuild
> @@ -1,25 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += cpu-features.h
> -header-y += hw_breakpoint.h
> -header-y += ioctls.h
> -header-y += posix_types.h
> -header-y += posix_types_32.h
> -header-y += posix_types_64.h
> -header-y += ptrace.h
> -header-y += ptrace_32.h
> -header-y += ptrace_64.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += types.h
> -header-y += unistd.h
> -header-y += unistd_32.h
> -header-y += unistd_64.h
> diff --git a/arch/sparc/include/uapi/asm/Kbuild b/arch/sparc/include/uapi/asm/Kbuild
> index b5843ee09fb5..b15bf6bc0e94 100644
> --- a/arch/sparc/include/uapi/asm/Kbuild
> +++ b/arch/sparc/include/uapi/asm/Kbuild
> @@ -1,50 +1,2 @@
> Â # UAPI Header export list
> -# User exported sparc header files
> -
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += apc.h
> -header-y += asi.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += display7seg.h
> -header-y += envctrl.h
> -header-y += errno.h
> -header-y += fbio.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += jsflash.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += openpromio.h
> -header-y += param.h
> -header-y += perfctr.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += psr.h
> -header-y += psrcompat.h
> -header-y += pstate.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += traps.h
> -header-y += uctx.h
> -header-y += unistd.h
> -header-y += utrap.h
> -header-y += watchdog.h
> diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild
> index 2d1f5638974c..057eaa533877 100644
> --- a/arch/tile/include/asm/Kbuild
> +++ b/arch/tile/include/asm/Kbuild
> @@ -1,6 +1,3 @@
> -
> -header-y += ../arch/
> -
> Â generic-y += bug.h
> Â generic-y += bugs.h
> Â generic-y += clkdev.h
> diff --git a/arch/tile/include/uapi/arch/Kbuild b/arch/tile/include/uapi/arch/Kbuild
> deleted file mode 100644
> index 97dfbecec6b6..000000000000
> --- a/arch/tile/include/uapi/arch/Kbuild
> +++ /dev/null
> @@ -1,17 +0,0 @@
> -# UAPI Header export list
> -header-y += abi.h
> -header-y += chip.h
> -header-y += chip_tilegx.h
> -header-y += chip_tilepro.h
> -header-y += icache.h
> -header-y += interrupts.h
> -header-y += interrupts_32.h
> -header-y += interrupts_64.h
> -header-y += opcode.h
> -header-y += opcode_tilegx.h
> -header-y += opcode_tilepro.h
> -header-y += sim.h
> -header-y += sim_def.h
> -header-y += spr_def.h
> -header-y += spr_def_32.h
> -header-y += spr_def_64.h
> diff --git a/arch/tile/include/uapi/asm/Kbuild b/arch/tile/include/uapi/asm/Kbuild
> index c20db8e428bf..e0a50111e07f 100644
> --- a/arch/tile/include/uapi/asm/Kbuild
> +++ b/arch/tile/include/uapi/asm/Kbuild
> @@ -1,21 +1,6 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += cachectl.h
> -header-y += hardwall.h
> -header-y += kvm_para.h
> -header-y += mman.h
> -header-y += ptrace.h
> -header-y += setup.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -
> Â generic-y += ucontext.h
> +
> +subdir-y += ../arch
> diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild
> index 0514d7ad6855..13a97aa2285f 100644
> --- a/arch/unicore32/include/uapi/asm/Kbuild
> +++ b/arch/unicore32/include/uapi/asm/Kbuild
> @@ -1,10 +1,4 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> Â
> -header-y += byteorder.h
> -header-y += kvm_para.h
> -header-y += ptrace.h
> -header-y += sigcontext.h
> -header-y += unistd.h
> -
> Â generic-y += kvm_para.h
> diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
> index 3dec769cadf7..83b6e9a0dce4 100644
> --- a/arch/x86/include/uapi/asm/Kbuild
> +++ b/arch/x86/include/uapi/asm/Kbuild
> @@ -4,62 +4,3 @@ include include/uapi/asm-generic/Kbuild.asm
> Â genhdr-y += unistd_32.h
> Â genhdr-y += unistd_64.h
> Â genhdr-y += unistd_x32.h
> -header-y += a.out.h
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += boot.h
> -header-y += bootparam.h
> -header-y += byteorder.h
> -header-y += debugreg.h
> -header-y += e820.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += hw_breakpoint.h
> -header-y += hyperv.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += ist.h
> -header-y += kvm.h
> -header-y += kvm_para.h
> -header-y += kvm_perf.h
> -header-y += ldt.h
> -header-y += mce.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += msr-index.h
> -header-y += msr.h
> -header-y += mtrr.h
> -header-y += param.h
> -header-y += perf_regs.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += posix_types_32.h
> -header-y += posix_types_64.h
> -header-y += posix_types_x32.h
> -header-y += prctl.h
> -header-y += processor-flags.h
> -header-y += ptrace-abi.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += sigcontext32.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += svm.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> -header-y += vm86.h
> -header-y += vmx.h
> -header-y += vsyscall.h
> diff --git a/arch/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild
> index 56aad54e7fb7..b15bf6bc0e94 100644
> --- a/arch/xtensa/include/uapi/asm/Kbuild
> +++ b/arch/xtensa/include/uapi/asm/Kbuild
> @@ -1,25 +1,2 @@
> Â # UAPI Header export list
> Â include include/uapi/asm-generic/Kbuild.asm
> -
> -header-y += auxvec.h
> -header-y += byteorder.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += types.h
> -header-y += unistd.h
> diff --git a/include/Kbuild b/include/Kbuild
> deleted file mode 100644
> index bab1145bc7a7..000000000000
> --- a/include/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# Top-level Makefile calls into asm-$(ARCH)
> -# List only non-arch directories below
> diff --git a/include/asm-generic/Kbuild.asm b/include/asm-generic/Kbuild.asm
> deleted file mode 100644
> index d2ee86b4c091..000000000000
> --- a/include/asm-generic/Kbuild.asm
> +++ /dev/null
> @@ -1 +0,0 @@
> -include include/uapi/asm-generic/Kbuild.asm
> diff --git a/include/scsi/fc/Kbuild b/include/scsi/fc/Kbuild
> deleted file mode 100644
> index e69de29bb2d1..000000000000
> diff --git a/include/uapi/Kbuild b/include/uapi/Kbuild
> deleted file mode 100644
> index 245aa6e05e6a..000000000000
> --- a/include/uapi/Kbuild
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -# UAPI Header export list
> -# Top-level Makefile calls into asm-$(ARCH)
> -# List only non-arch directories below
> -
> -
> -header-y += asm-generic/
> -header-y += linux/
> -header-y += sound/
> -header-y += mtd/
> -header-y += rdma/
> -header-y += video/
> -header-y += drm/
> -header-y += xen/
> -header-y += scsi/
> -header-y += misc/
> diff --git a/include/uapi/asm-generic/Kbuild b/include/uapi/asm-generic/Kbuild
> deleted file mode 100644
> index b73de7bb7a62..000000000000
> --- a/include/uapi/asm-generic/Kbuild
> +++ /dev/null
> @@ -1,36 +0,0 @@
> -# UAPI Header export list
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += errno-base.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += int-l64.h
> -header-y += int-ll64.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += kvm_para.h
> -header-y += mman-common.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += shmparam.h
> -header-y += siginfo.h
> -header-y += signal-defs.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += ucontext.h
> -header-y += unistd.h
> diff --git a/include/uapi/asm-generic/Kbuild.asm b/include/uapi/asm-generic/Kbuild.asm
> index fcd50b759217..c13805d5a2a0 100644
> --- a/include/uapi/asm-generic/Kbuild.asm
> +++ b/include/uapi/asm-generic/Kbuild.asm
> @@ -8,38 +8,38 @@ opt-header += a.out.h
> Â #
> Â # Headers that are mandatory in usr/include/asm/
> Â #
> -header-y += auxvec.h
> -header-y += bitsperlong.h
> -header-y += byteorder.h
> -header-y += errno.h
> -header-y += fcntl.h
> -header-y += ioctl.h
> -header-y += ioctls.h
> -header-y += ipcbuf.h
> -header-y += mman.h
> -header-y += msgbuf.h
> -header-y += param.h
> -header-y += poll.h
> -header-y += posix_types.h
> -header-y += ptrace.h
> -header-y += resource.h
> -header-y += sembuf.h
> -header-y += setup.h
> -header-y += shmbuf.h
> -header-y += sigcontext.h
> -header-y += siginfo.h
> -header-y += signal.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += stat.h
> -header-y += statfs.h
> -header-y += swab.h
> -header-y += termbits.h
> -header-y += termios.h
> -header-y += types.h
> -header-y += unistd.h
> +generic-y += auxvec.h
> +generic-y += bitsperlong.h
> +generic-y += byteorder.h
> +generic-y += errno.h
> +generic-y += fcntl.h
> +generic-y += ioctl.h
> +generic-y += ioctls.h
> +generic-y += ipcbuf.h
> +generic-y += mman.h
> +generic-y += msgbuf.h
> +generic-y += param.h
> +generic-y += poll.h
> +generic-y += posix_types.h
> +generic-y += ptrace.h
> +generic-y += resource.h
> +generic-y += sembuf.h
> +generic-y += setup.h
> +generic-y += shmbuf.h
> +generic-y += sigcontext.h
> +generic-y += siginfo.h
> +generic-y += signal.h
> +generic-y += socket.h
> +generic-y += sockios.h
> +generic-y += stat.h
> +generic-y += statfs.h
> +generic-y += swab.h
> +generic-y += termbits.h
> +generic-y += termios.h
> +generic-y += types.h
> +generic-y += unistd.h
> Â
> -header-y += $(foreach hdr,$(opt-header), \
> +generic-y += $(foreach hdr,$(opt-header), \
> Â Â Â Â Â Â Â $(if \
> Â $(wildcard \
> Â $(srctree)/arch/$(SRCARCH)/include/uapi/asm/$(hdr) \
> diff --git a/include/uapi/drm/Kbuild b/include/uapi/drm/Kbuild
> deleted file mode 100644
> index 9355dd8eff3b..000000000000
> --- a/include/uapi/drm/Kbuild
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -# UAPI Header export list
> -header-y += drm.h
> -header-y += drm_fourcc.h
> -header-y += drm_mode.h
> -header-y += drm_sarea.h
> -header-y += amdgpu_drm.h
> -header-y += exynos_drm.h
> -header-y += i810_drm.h
> -header-y += i915_drm.h
> -header-y += mga_drm.h
> -header-y += nouveau_drm.h
> -header-y += qxl_drm.h
> -header-y += r128_drm.h
> -header-y += radeon_drm.h
> -header-y += savage_drm.h
> -header-y += sis_drm.h
> -header-y += tegra_drm.h
> -header-y += via_drm.h
> -header-y += vmwgfx_drm.h
> -header-y += msm_drm.h
> -header-y += vc4_drm.h
> -header-y += virtgpu_drm.h
> diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
> deleted file mode 100644
> index a8b93e685239..000000000000
> --- a/include/uapi/linux/Kbuild
> +++ /dev/null
> @@ -1,482 +0,0 @@
> -# UAPI Header export list
> -header-y += android/
> -header-y += byteorder/
> -header-y += can/
> -header-y += caif/
> -header-y += dvb/
> -header-y += hdlc/
> -header-y += hsi/
> -header-y += iio/
> -header-y += isdn/
> -header-y += mmc/
> -header-y += nfsd/
> -header-y += raid/
> -header-y += spi/
> -header-y += sunrpc/
> -header-y += tc_act/
> -header-y += tc_ematch/
> -header-y += netfilter/
> -header-y += netfilter_arp/
> -header-y += netfilter_bridge/
> -header-y += netfilter_ipv4/
> -header-y += netfilter_ipv6/
> -header-y += usb/
> -header-y += wimax/
> -
> -genhdr-y += version.h
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/a.out.h \
> - Â Â $(srctree)/arch/$(SRCARCH)/include/asm/a.out.h),)
> -header-y += a.out.h
> -endif
> -
> -header-y += acct.h
> -header-y += adb.h
> -header-y += adfs_fs.h
> -header-y += affs_hardblocks.h
> -header-y += agpgart.h
> -header-y += aio_abi.h
> -header-y += am437x-vpfe.h
> -header-y += apm_bios.h
> -header-y += arcfb.h
> -header-y += atalk.h
> -header-y += atmapi.h
> -header-y += atmarp.h
> -header-y += atmbr2684.h
> -header-y += atmclip.h
> -header-y += atmdev.h
> -header-y += atm_eni.h
> -header-y += atm.h
> -header-y += atm_he.h
> -header-y += atm_idt77105.h
> -header-y += atmioc.h
> -header-y += atmlec.h
> -header-y += atmmpc.h
> -header-y += atm_nicstar.h
> -header-y += atmppp.h
> -header-y += atmsap.h
> -header-y += atmsvc.h
> -header-y += atm_tcp.h
> -header-y += atm_zatm.h
> -header-y += audit.h
> -header-y += auto_fs4.h
> -header-y += auto_fs.h
> -header-y += auxvec.h
> -header-y += ax25.h
> -header-y += b1lli.h
> -header-y += baycom.h
> -header-y += bcm933xx_hcs.h
> -header-y += bfs_fs.h
> -header-y += binfmts.h
> -header-y += blkpg.h
> -header-y += blktrace_api.h
> -header-y += blkzoned.h
> -header-y += bpf_common.h
> -header-y += bpf_perf_event.h
> -header-y += bpf.h
> -header-y += bpqether.h
> -header-y += bsg.h
> -header-y += bt-bmc.h
> -header-y += btrfs.h
> -header-y += can.h
> -header-y += capability.h
> -header-y += capi.h
> -header-y += cciss_defs.h
> -header-y += cciss_ioctl.h
> -header-y += cdrom.h
> -header-y += cec.h
> -header-y += cec-funcs.h
> -header-y += cgroupstats.h
> -header-y += chio.h
> -header-y += cm4000_cs.h
> -header-y += cn_proc.h
> -header-y += coda.h
> -header-y += coda_psdev.h
> -header-y += coff.h
> -header-y += connector.h
> -header-y += const.h
> -header-y += cramfs_fs.h
> -header-y += cuda.h
> -header-y += cyclades.h
> -header-y += cycx_cfm.h
> -header-y += dcbnl.h
> -header-y += dccp.h
> -header-y += devlink.h
> -header-y += dlmconstants.h
> -header-y += dlm_device.h
> -header-y += dlm.h
> -header-y += dlm_netlink.h
> -header-y += dlm_plock.h
> -header-y += dm-ioctl.h
> -header-y += dm-log-userspace.h
> -header-y += dn.h
> -header-y += dqblk_xfs.h
> -header-y += edd.h
> -header-y += efs_fs_sb.h
> -header-y += elfcore.h
> -header-y += elf-em.h
> -header-y += elf-fdpic.h
> -header-y += elf.h
> -header-y += errno.h
> -header-y += errqueue.h
> -header-y += ethtool.h
> -header-y += eventpoll.h
> -header-y += fadvise.h
> -header-y += falloc.h
> -header-y += fanotify.h
> -header-y += fb.h
> -header-y += fcntl.h
> -header-y += fd.h
> -header-y += fdreg.h
> -header-y += fib_rules.h
> -header-y += fiemap.h
> -header-y += filter.h
> -header-y += firewire-cdev.h
> -header-y += firewire-constants.h
> -header-y += flat.h
> -header-y += fou.h
> -header-y += fs.h
> -header-y += fsl_hypervisor.h
> -header-y += fuse.h
> -header-y += futex.h
> -header-y += gameport.h
> -header-y += genetlink.h
> -header-y += gen_stats.h
> -header-y += gfs2_ondisk.h
> -header-y += gigaset_dev.h
> -header-y += gpio.h
> -header-y += gsmmux.h
> -header-y += gtp.h
> -header-y += hdlcdrv.h
> -header-y += hdlc.h
> -header-y += hdreg.h
> -header-y += hiddev.h
> -header-y += hid.h
> -header-y += hidraw.h
> -header-y += hpet.h
> -header-y += hsr_netlink.h
> -header-y += hyperv.h
> -header-y += hysdn_if.h
> -header-y += i2c-dev.h
> -header-y += i2c.h
> -header-y += i2o-dev.h
> -header-y += i8k.h
> -header-y += icmp.h
> -header-y += icmpv6.h
> -header-y += if_addr.h
> -header-y += if_addrlabel.h
> -header-y += if_alg.h
> -header-y += if_arcnet.h
> -header-y += if_arp.h
> -header-y += if_bonding.h
> -header-y += if_bridge.h
> -header-y += if_cablemodem.h
> -header-y += if_eql.h
> -header-y += if_ether.h
> -header-y += if_fc.h
> -header-y += if_fddi.h
> -header-y += if_frad.h
> -header-y += if.h
> -header-y += if_hippi.h
> -header-y += if_infiniband.h
> -header-y += if_link.h
> -header-y += if_ltalk.h
> -header-y += if_macsec.h
> -header-y += if_packet.h
> -header-y += if_phonet.h
> -header-y += if_plip.h
> -header-y += if_ppp.h
> -header-y += if_pppol2tp.h
> -header-y += if_pppox.h
> -header-y += if_slip.h
> -header-y += if_team.h
> -header-y += if_tun.h
> -header-y += if_tunnel.h
> -header-y += if_vlan.h
> -header-y += if_x25.h
> -header-y += igmp.h
> -header-y += ila.h
> -header-y += in6.h
> -header-y += inet_diag.h
> -header-y += in.h
> -header-y += inotify.h
> -header-y += input.h
> -header-y += input-event-codes.h
> -header-y += in_route.h
> -header-y += ioctl.h
> -header-y += ip6_tunnel.h
> -header-y += ipc.h
> -header-y += ip.h
> -header-y += ipmi.h
> -header-y += ipmi_msgdefs.h
> -header-y += ipsec.h
> -header-y += ipv6.h
> -header-y += ipv6_route.h
> -header-y += ip_vs.h
> -header-y += ipx.h
> -header-y += irda.h
> -header-y += irqnr.h
> -header-y += isdn_divertif.h
> -header-y += isdn.h
> -header-y += isdnif.h
> -header-y += isdn_ppp.h
> -header-y += iso_fs.h
> -header-y += ivtvfb.h
> -header-y += ivtv.h
> -header-y += ixjuser.h
> -header-y += jffs2.h
> -header-y += joystick.h
> -header-y += kcmp.h
> -header-y += kdev_t.h
> -header-y += kd.h
> -header-y += kernelcapi.h
> -header-y += kernel.h
> -header-y += kernel-page-flags.h
> -header-y += kexec.h
> -header-y += keyboard.h
> -header-y += keyctl.h
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm.h \
> - Â Â $(srctree)/arch/$(SRCARCH)/include/asm/kvm.h),)
> -header-y += kvm.h
> -endif
> -
> -
> -ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm_para.h \
> - Â Â $(srctree)/arch/$(SRCARCH)/include/asm/kvm_para.h),)
> -header-y += kvm_para.h
> -endif
> -
> -header-y += hw_breakpoint.h
> -header-y += l2tp.h
> -header-y += libc-compat.h
> -header-y += lirc.h
> -header-y += limits.h
> -header-y += llc.h
> -header-y += loop.h
> -header-y += lp.h
> -header-y += lwtunnel.h
> -header-y += magic.h
> -header-y += major.h
> -header-y += map_to_7segment.h
> -header-y += matroxfb.h
> -header-y += mdio.h
> -header-y += media.h
> -header-y += media-bus-format.h
> -header-y += mei.h
> -header-y += membarrier.h
> -header-y += memfd.h
> -header-y += mempolicy.h
> -header-y += meye.h
> -header-y += mic_common.h
> -header-y += mic_ioctl.h
> -header-y += mii.h
> -header-y += minix_fs.h
> -header-y += mman.h
> -header-y += mmtimer.h
> -header-y += mpls.h
> -header-y += mpls_iptunnel.h
> -header-y += mqueue.h
> -header-y += mroute6.h
> -header-y += mroute.h
> -header-y += msdos_fs.h
> -header-y += msg.h
> -header-y += mtio.h
> -header-y += nbd.h
> -header-y += ncp_fs.h
> -header-y += ncp.h
> -header-y += ncp_mount.h
> -header-y += ncp_no.h
> -header-y += ndctl.h
> -header-y += neighbour.h
> -header-y += netconf.h
> -header-y += netdevice.h
> -header-y += net_dropmon.h
> -header-y += netfilter_arp.h
> -header-y += netfilter_bridge.h
> -header-y += netfilter_decnet.h
> -header-y += netfilter.h
> -header-y += netfilter_ipv4.h
> -header-y += netfilter_ipv6.h
> -header-y += net.h
> -header-y += netlink_diag.h
> -header-y += netlink.h
> -header-y += netrom.h
> -header-y += net_namespace.h
> -header-y += net_tstamp.h
> -header-y += nfc.h
> -header-y += nfs2.h
> -header-y += nfs3.h
> -header-y += nfs4.h
> -header-y += nfs4_mount.h
> -header-y += nfsacl.h
> -header-y += nfs_fs.h
> -header-y += nfs.h
> -header-y += nfs_idmap.h
> -header-y += nfs_mount.h
> -header-y += nl80211.h
> -header-y += n_r3964.h
> -header-y += nubus.h
> -header-y += nvme_ioctl.h
> -header-y += nvram.h
> -header-y += omap3isp.h
> -header-y += omapfb.h
> -header-y += oom.h
> -header-y += openvswitch.h
> -header-y += packet_diag.h
> -header-y += param.h
> -header-y += parport.h
> -header-y += patchkey.h
> -header-y += pci.h
> -header-y += pci_regs.h
> -header-y += perf_event.h
> -header-y += personality.h
> -header-y += pfkeyv2.h
> -header-y += pg.h
> -header-y += phantom.h
> -header-y += phonet.h
> -header-y += pktcdvd.h
> -header-y += pkt_cls.h
> -header-y += pkt_sched.h
> -header-y += pmu.h
> -header-y += poll.h
> -header-y += posix_acl.h
> -header-y += posix_acl_xattr.h
> -header-y += posix_types.h
> -header-y += ppdev.h
> -header-y += ppp-comp.h
> -header-y += ppp_defs.h
> -header-y += ppp-ioctl.h
> -header-y += pps.h
> -header-y += prctl.h
> -header-y += psci.h
> -header-y += ptp_clock.h
> -header-y += ptrace.h
> -header-y += qnx4_fs.h
> -header-y += qnxtypes.h
> -header-y += quota.h
> -header-y += radeonfb.h
> -header-y += random.h
> -header-y += raw.h
> -header-y += rds.h
> -header-y += reboot.h
> -header-y += reiserfs_fs.h
> -header-y += reiserfs_xattr.h
> -header-y += resource.h
> -header-y += rfkill.h
> -header-y += rio_cm_cdev.h
> -header-y += rio_mport_cdev.h
> -header-y += romfs_fs.h
> -header-y += rose.h
> -header-y += route.h
> -header-y += rtc.h
> -header-y += rtnetlink.h
> -header-y += scc.h
> -header-y += sched.h
> -header-y += scif_ioctl.h
> -header-y += screen_info.h
> -header-y += sctp.h
> -header-y += sdla.h
> -header-y += seccomp.h
> -header-y += securebits.h
> -header-y += selinux_netlink.h
> -header-y += sem.h
> -header-y += serial_core.h
> -header-y += serial.h
> -header-y += serial_reg.h
> -header-y += serio.h
> -header-y += shm.h
> -header-y += signalfd.h
> -header-y += signal.h
> -header-y += smiapp.h
> -header-y += snmp.h
> -header-y += sock_diag.h
> -header-y += socket.h
> -header-y += sockios.h
> -header-y += sonet.h
> -header-y += sonypi.h
> -header-y += soundcard.h
> -header-y += sound.h
> -header-y += stat.h
> -header-y += stddef.h
> -header-y += string.h
> -header-y += suspend_ioctls.h
> -header-y += swab.h
> -header-y += synclink.h
> -header-y += sync_file.h
> -header-y += sysctl.h
> -header-y += sysinfo.h
> -header-y += target_core_user.h
> -header-y += taskstats.h
> -header-y += tcp.h
> -header-y += tcp_metrics.h
> -header-y += telephony.h
> -header-y += termios.h
> -header-y += thermal.h
> -header-y += time.h
> -header-y += times.h
> -header-y += timex.h
> -header-y += tiocl.h
> -header-y += tipc_config.h
> -header-y += tipc_netlink.h
> -header-y += tipc.h
> -header-y += toshiba.h
> -header-y += tty_flags.h
> -header-y += tty.h
> -header-y += types.h
> -header-y += udf_fs_i.h
> -header-y += udp.h
> -header-y += uhid.h
> -header-y += uinput.h
> -header-y += uio.h
> -header-y += uleds.h
> -header-y += ultrasound.h
> -header-y += un.h
> -header-y += unistd.h
> -header-y += unix_diag.h
> -header-y += usbdevice_fs.h
> -header-y += usbip.h
> -header-y += utime.h
> -header-y += utsname.h
> -header-y += uuid.h
> -header-y += uvcvideo.h
> -header-y += v4l2-common.h
> -header-y += v4l2-controls.h
> -header-y += v4l2-dv-timings.h
> -header-y += v4l2-mediabus.h
> -header-y += v4l2-subdev.h
> -header-y += veth.h
> -header-y += vfio.h
> -header-y += vhost.h
> -header-y += videodev2.h
> -header-y += virtio_9p.h
> -header-y += virtio_balloon.h
> -header-y += virtio_blk.h
> -header-y += virtio_config.h
> -header-y += virtio_console.h
> -header-y += virtio_gpu.h
> -header-y += virtio_ids.h
> -header-y += virtio_input.h
> -header-y += virtio_net.h
> -header-y += virtio_pci.h
> -header-y += virtio_ring.h
> -header-y += virtio_rng.h
> -header-y += virtio_scsi.h
> -header-y += virtio_types.h
> -header-y += virtio_vsock.h
> -header-y += virtio_crypto.h
> -header-y += vm_sockets.h
> -header-y += vt.h
> -header-y += vtpm_proxy.h
> -header-y += wait.h
> -header-y += wanrouter.h
> -header-y += watchdog.h
> -header-y += wimax.h
> -header-y += wireless.h
> -header-y += x25.h
> -header-y += xattr.h
> -header-y += xfrm.h
> -header-y += xilinx-v4l2-controls.h
> -header-y += zorro.h
> -header-y += zorro_ids.h
> -header-y += userfaultfd.h
> diff --git a/include/uapi/linux/android/Kbuild b/include/uapi/linux/android/Kbuild
> deleted file mode 100644
> index ca011eec252a..000000000000
> --- a/include/uapi/linux/android/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += binder.h
> diff --git a/include/uapi/linux/byteorder/Kbuild b/include/uapi/linux/byteorder/Kbuild
> deleted file mode 100644
> index 619225b9ff2e..000000000000
> --- a/include/uapi/linux/byteorder/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += big_endian.h
> -header-y += little_endian.h
> diff --git a/include/uapi/linux/caif/Kbuild b/include/uapi/linux/caif/Kbuild
> deleted file mode 100644
> index 43396612d3a3..000000000000
> --- a/include/uapi/linux/caif/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += caif_socket.h
> -header-y += if_caif.h
> diff --git a/include/uapi/linux/can/Kbuild b/include/uapi/linux/can/Kbuild
> deleted file mode 100644
> index 21c91bf25a29..000000000000
> --- a/include/uapi/linux/can/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += bcm.h
> -header-y += error.h
> -header-y += gw.h
> -header-y += netlink.h
> -header-y += raw.h
> diff --git a/include/uapi/linux/dvb/Kbuild b/include/uapi/linux/dvb/Kbuild
> deleted file mode 100644
> index d40942cfc627..000000000000
> --- a/include/uapi/linux/dvb/Kbuild
> +++ /dev/null
> @@ -1,9 +0,0 @@
> -# UAPI Header export list
> -header-y += audio.h
> -header-y += ca.h
> -header-y += dmx.h
> -header-y += frontend.h
> -header-y += net.h
> -header-y += osd.h
> -header-y += version.h
> -header-y += video.h
> diff --git a/include/uapi/linux/hdlc/Kbuild b/include/uapi/linux/hdlc/Kbuild
> deleted file mode 100644
> index 8c1d2cb75e33..000000000000
> --- a/include/uapi/linux/hdlc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += ioctl.h
> diff --git a/include/uapi/linux/hsi/Kbuild b/include/uapi/linux/hsi/Kbuild
> deleted file mode 100644
> index a16a00544258..000000000000
> --- a/include/uapi/linux/hsi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += hsi_char.h cs-protocol.h
> diff --git a/include/uapi/linux/iio/Kbuild b/include/uapi/linux/iio/Kbuild
> deleted file mode 100644
> index 86f76d84c44f..000000000000
> --- a/include/uapi/linux/iio/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += events.h
> -header-y += types.h
> diff --git a/include/uapi/linux/isdn/Kbuild b/include/uapi/linux/isdn/Kbuild
> deleted file mode 100644
> index 89e52850bf29..000000000000
> --- a/include/uapi/linux/isdn/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += capicmd.h
> diff --git a/include/uapi/linux/mmc/Kbuild b/include/uapi/linux/mmc/Kbuild
> deleted file mode 100644
> index 8c1d2cb75e33..000000000000
> --- a/include/uapi/linux/mmc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += ioctl.h
> diff --git a/include/uapi/linux/netfilter/Kbuild b/include/uapi/linux/netfilter/Kbuild
> deleted file mode 100644
> index 03f194aeadc5..000000000000
> --- a/include/uapi/linux/netfilter/Kbuild
> +++ /dev/null
> @@ -1,89 +0,0 @@
> -# UAPI Header export list
> -header-y += ipset/
> -header-y += nf_conntrack_common.h
> -header-y += nf_conntrack_ftp.h
> -header-y += nf_conntrack_sctp.h
> -header-y += nf_conntrack_tcp.h
> -header-y += nf_conntrack_tuple_common.h
> -header-y += nf_log.h
> -header-y += nf_tables.h
> -header-y += nf_tables_compat.h
> -header-y += nf_nat.h
> -header-y += nfnetlink.h
> -header-y += nfnetlink_acct.h
> -header-y += nfnetlink_compat.h
> -header-y += nfnetlink_conntrack.h
> -header-y += nfnetlink_cthelper.h
> -header-y += nfnetlink_cttimeout.h
> -header-y += nfnetlink_log.h
> -header-y += nfnetlink_queue.h
> -header-y += x_tables.h
> -header-y += xt_AUDIT.h
> -header-y += xt_CHECKSUM.h
> -header-y += xt_CLASSIFY.h
> -header-y += xt_CONNMARK.h
> -header-y += xt_CONNSECMARK.h
> -header-y += xt_CT.h
> -header-y += xt_DSCP.h
> -header-y += xt_HMARK.h
> -header-y += xt_IDLETIMER.h
> -header-y += xt_LED.h
> -header-y += xt_LOG.h
> -header-y += xt_MARK.h
> -header-y += xt_NFLOG.h
> -header-y += xt_NFQUEUE.h
> -header-y += xt_RATEEST.h
> -header-y += xt_SECMARK.h
> -header-y += xt_SYNPROXY.h
> -header-y += xt_TCPMSS.h
> -header-y += xt_TCPOPTSTRIP.h
> -header-y += xt_TEE.h
> -header-y += xt_TPROXY.h
> -header-y += xt_addrtype.h
> -header-y += xt_bpf.h
> -header-y += xt_cgroup.h
> -header-y += xt_cluster.h
> -header-y += xt_comment.h
> -header-y += xt_connbytes.h
> -header-y += xt_connlabel.h
> -header-y += xt_connlimit.h
> -header-y += xt_connmark.h
> -header-y += xt_conntrack.h
> -header-y += xt_cpu.h
> -header-y += xt_dccp.h
> -header-y += xt_devgroup.h
> -header-y += xt_dscp.h
> -header-y += xt_ecn.h
> -header-y += xt_esp.h
> -header-y += xt_hashlimit.h
> -header-y += xt_helper.h
> -header-y += xt_ipcomp.h
> -header-y += xt_iprange.h
> -header-y += xt_ipvs.h
> -header-y += xt_l2tp.h
> -header-y += xt_length.h
> -header-y += xt_limit.h
> -header-y += xt_mac.h
> -header-y += xt_mark.h
> -header-y += xt_multiport.h
> -header-y += xt_nfacct.h
> -header-y += xt_osf.h
> -header-y += xt_owner.h
> -header-y += xt_physdev.h
> -header-y += xt_pkttype.h
> -header-y += xt_policy.h
> -header-y += xt_quota.h
> -header-y += xt_rateest.h
> -header-y += xt_realm.h
> -header-y += xt_recent.h
> -header-y += xt_rpfilter.h
> -header-y += xt_sctp.h
> -header-y += xt_set.h
> -header-y += xt_socket.h
> -header-y += xt_state.h
> -header-y += xt_statistic.h
> -header-y += xt_string.h
> -header-y += xt_tcpmss.h
> -header-y += xt_tcpudp.h
> -header-y += xt_time.h
> -header-y += xt_u32.h
> diff --git a/include/uapi/linux/netfilter/ipset/Kbuild b/include/uapi/linux/netfilter/ipset/Kbuild
> deleted file mode 100644
> index d2680423d9ab..000000000000
> --- a/include/uapi/linux/netfilter/ipset/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += ip_set.h
> -header-y += ip_set_bitmap.h
> -header-y += ip_set_hash.h
> -header-y += ip_set_list.h
> diff --git a/include/uapi/linux/netfilter_arp/Kbuild b/include/uapi/linux/netfilter_arp/Kbuild
> deleted file mode 100644
> index 62d5637cc0ac..000000000000
> --- a/include/uapi/linux/netfilter_arp/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += arp_tables.h
> -header-y += arpt_mangle.h
> diff --git a/include/uapi/linux/netfilter_bridge/Kbuild b/include/uapi/linux/netfilter_bridge/Kbuild
> deleted file mode 100644
> index 0fbad8ef96de..000000000000
> --- a/include/uapi/linux/netfilter_bridge/Kbuild
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -# UAPI Header export list
> -header-y += ebt_802_3.h
> -header-y += ebt_among.h
> -header-y += ebt_arp.h
> -header-y += ebt_arpreply.h
> -header-y += ebt_ip.h
> -header-y += ebt_ip6.h
> -header-y += ebt_limit.h
> -header-y += ebt_log.h
> -header-y += ebt_mark_m.h
> -header-y += ebt_mark_t.h
> -header-y += ebt_nat.h
> -header-y += ebt_nflog.h
> -header-y += ebt_pkttype.h
> -header-y += ebt_redirect.h
> -header-y += ebt_stp.h
> -header-y += ebt_vlan.h
> -header-y += ebtables.h
> diff --git a/include/uapi/linux/netfilter_ipv4/Kbuild b/include/uapi/linux/netfilter_ipv4/Kbuild
> deleted file mode 100644
> index ecb291df390e..000000000000
> --- a/include/uapi/linux/netfilter_ipv4/Kbuild
> +++ /dev/null
> @@ -1,10 +0,0 @@
> -# UAPI Header export list
> -header-y += ip_tables.h
> -header-y += ipt_CLUSTERIP.h
> -header-y += ipt_ECN.h
> -header-y += ipt_LOG.h
> -header-y += ipt_REJECT.h
> -header-y += ipt_TTL.h
> -header-y += ipt_ah.h
> -header-y += ipt_ecn.h
> -header-y += ipt_ttl.h
> diff --git a/include/uapi/linux/netfilter_ipv6/Kbuild b/include/uapi/linux/netfilter_ipv6/Kbuild
> deleted file mode 100644
> index 75a668ca2353..000000000000
> --- a/include/uapi/linux/netfilter_ipv6/Kbuild
> +++ /dev/null
> @@ -1,13 +0,0 @@
> -# UAPI Header export list
> -header-y += ip6_tables.h
> -header-y += ip6t_HL.h
> -header-y += ip6t_LOG.h
> -header-y += ip6t_NPT.h
> -header-y += ip6t_REJECT.h
> -header-y += ip6t_ah.h
> -header-y += ip6t_frag.h
> -header-y += ip6t_hl.h
> -header-y += ip6t_ipv6header.h
> -header-y += ip6t_mh.h
> -header-y += ip6t_opts.h
> -header-y += ip6t_rt.h
> diff --git a/include/uapi/linux/nfsd/Kbuild b/include/uapi/linux/nfsd/Kbuild
> deleted file mode 100644
> index c11bc404053c..000000000000
> --- a/include/uapi/linux/nfsd/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += cld.h
> -header-y += debug.h
> -header-y += export.h
> -header-y += nfsfh.h
> -header-y += stats.h
> diff --git a/include/uapi/linux/raid/Kbuild b/include/uapi/linux/raid/Kbuild
> deleted file mode 100644
> index e2c3d25405d7..000000000000
> --- a/include/uapi/linux/raid/Kbuild
> +++ /dev/null
> @@ -1,3 +0,0 @@
> -# UAPI Header export list
> -header-y += md_p.h
> -header-y += md_u.h
> diff --git a/include/uapi/linux/spi/Kbuild b/include/uapi/linux/spi/Kbuild
> deleted file mode 100644
> index 0cc747eff165..000000000000
> --- a/include/uapi/linux/spi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += spidev.h
> diff --git a/include/uapi/linux/sunrpc/Kbuild b/include/uapi/linux/sunrpc/Kbuild
> deleted file mode 100644
> index 8e02e47c20fb..000000000000
> --- a/include/uapi/linux/sunrpc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += debug.h
> diff --git a/include/uapi/linux/tc_act/Kbuild b/include/uapi/linux/tc_act/Kbuild
> deleted file mode 100644
> index e3db7403296f..000000000000
> --- a/include/uapi/linux/tc_act/Kbuild
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -# UAPI Header export list
> -header-y += tc_csum.h
> -header-y += tc_defact.h
> -header-y += tc_gact.h
> -header-y += tc_ipt.h
> -header-y += tc_mirred.h
> -header-y += tc_nat.h
> -header-y += tc_pedit.h
> -header-y += tc_skbedit.h
> -header-y += tc_vlan.h
> -header-y += tc_bpf.h
> -header-y += tc_connmark.h
> -header-y += tc_ife.h
> -header-y += tc_tunnel_key.h
> -header-y += tc_skbmod.h
> diff --git a/include/uapi/linux/tc_ematch/Kbuild b/include/uapi/linux/tc_ematch/Kbuild
> deleted file mode 100644
> index 53fca3925535..000000000000
> --- a/include/uapi/linux/tc_ematch/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += tc_em_cmp.h
> -header-y += tc_em_meta.h
> -header-y += tc_em_nbyte.h
> -header-y += tc_em_text.h
> diff --git a/include/uapi/linux/usb/Kbuild b/include/uapi/linux/usb/Kbuild
> deleted file mode 100644
> index 4cc4d6e7e523..000000000000
> --- a/include/uapi/linux/usb/Kbuild
> +++ /dev/null
> @@ -1,12 +0,0 @@
> -# UAPI Header export list
> -header-y += audio.h
> -header-y += cdc.h
> -header-y += cdc-wdm.h
> -header-y += ch11.h
> -header-y += ch9.h
> -header-y += functionfs.h
> -header-y += g_printer.h
> -header-y += gadgetfs.h
> -header-y += midi.h
> -header-y += tmc.h
> -header-y += video.h
> diff --git a/include/uapi/linux/wimax/Kbuild b/include/uapi/linux/wimax/Kbuild
> deleted file mode 100644
> index 1c97be49971f..000000000000
> --- a/include/uapi/linux/wimax/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += i2400m.h
> diff --git a/include/uapi/misc/Kbuild b/include/uapi/misc/Kbuild
> deleted file mode 100644
> index e96cae7d58c9..000000000000
> --- a/include/uapi/misc/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# misc Header export list
> -header-y += cxl.h
> diff --git a/include/uapi/mtd/Kbuild b/include/uapi/mtd/Kbuild
> deleted file mode 100644
> index 5a691e10cd0e..000000000000
> --- a/include/uapi/mtd/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += inftl-user.h
> -header-y += mtd-abi.h
> -header-y += mtd-user.h
> -header-y += nftl-user.h
> -header-y += ubi-user.h
> diff --git a/include/uapi/rdma/Kbuild b/include/uapi/rdma/Kbuild
> deleted file mode 100644
> index 82bdf5626859..000000000000
> --- a/include/uapi/rdma/Kbuild
> +++ /dev/null
> @@ -1,18 +0,0 @@
> -# UAPI Header export list
> -header-y += ib_user_cm.h
> -header-y += ib_user_mad.h
> -header-y += ib_user_sa.h
> -header-y += ib_user_verbs.h
> -header-y += rdma_netlink.h
> -header-y += rdma_user_cm.h
> -header-y += hfi/
> -header-y += rdma_user_rxe.h
> -header-y += cxgb3-abi.h
> -header-y += cxgb4-abi.h
> -header-y += mlx4-abi.h
> -header-y += mlx5-abi.h
> -header-y += mthca-abi.h
> -header-y += nes-abi.h
> -header-y += ocrdma-abi.h
> -header-y += hns-abi.h
> -header-y += vmw_pvrdma-abi.h
> diff --git a/include/uapi/rdma/hfi/Kbuild b/include/uapi/rdma/hfi/Kbuild
> deleted file mode 100644
> index ef23c294fc71..000000000000
> --- a/include/uapi/rdma/hfi/Kbuild
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# UAPI Header export list
> -header-y += hfi1_user.h
> diff --git a/include/uapi/scsi/Kbuild b/include/uapi/scsi/Kbuild
> deleted file mode 100644
> index d791e0ad509d..000000000000
> --- a/include/uapi/scsi/Kbuild
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -# UAPI Header export list
> -header-y += fc/
> -header-y += scsi_bsg_fc.h
> -header-y += scsi_netlink.h
> -header-y += scsi_netlink_fc.h
> -header-y += cxlflash_ioctl.h
> diff --git a/include/uapi/scsi/fc/Kbuild b/include/uapi/scsi/fc/Kbuild
> deleted file mode 100644
> index 5ead9fac265c..000000000000
> --- a/include/uapi/scsi/fc/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += fc_els.h
> -header-y += fc_fs.h
> -header-y += fc_gs.h
> -header-y += fc_ns.h
> diff --git a/include/uapi/sound/Kbuild b/include/uapi/sound/Kbuild
> deleted file mode 100644
> index 9578d8bdbf31..000000000000
> --- a/include/uapi/sound/Kbuild
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -# UAPI Header export list
> -header-y += asequencer.h
> -header-y += asoc.h
> -header-y += asound.h
> -header-y += asound_fm.h
> -header-y += compress_offload.h
> -header-y += compress_params.h
> -header-y += emu10k1.h
> -header-y += firewire.h
> -header-y += hdsp.h
> -header-y += hdspm.h
> -header-y += sb16_csp.h
> -header-y += sfnt_info.h
> -header-y += tlv.h
> -header-y += usb_stream.h
> -header-y += snd_sst_tokens.h
> diff --git a/include/uapi/video/Kbuild b/include/uapi/video/Kbuild
> deleted file mode 100644
> index ac7203bb32cc..000000000000
> --- a/include/uapi/video/Kbuild
> +++ /dev/null
> @@ -1,4 +0,0 @@
> -# UAPI Header export list
> -header-y += edid.h
> -header-y += sisfb.h
> -header-y += uvesafb.h
> diff --git a/include/uapi/xen/Kbuild b/include/uapi/xen/Kbuild
> deleted file mode 100644
> index 5c459628e8c7..000000000000
> --- a/include/uapi/xen/Kbuild
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -# UAPI Header export list
> -header-y += evtchn.h
> -header-y += gntalloc.h
> -header-y += gntdev.h
> -header-y += privcmd.h
> diff --git a/include/video/Kbuild b/include/video/Kbuild
> deleted file mode 100644
> index e69de29bb2d1..000000000000
> diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
> index 876b42cfede4..bb93f8466a35 100644
> --- a/scripts/Makefile.headersinst
> +++ b/scripts/Makefile.headersinst
> @@ -1,17 +1,18 @@
> Â # ==========================================================================
> Â # Installing headers
> Â #
> -# header-y  - list files to be installed. They are preprocessed
> -#Â Â Â Â Â Â Â Â Â Â Â Â Â to remove __KERNEL__ section of the file
> -# genhdr-y  - Same as header-y but in a generated/ directory
> +# All headers under include/uapi, include/generated/uapi,
> +# arch/<arch>/include/uapi/asm and /include/generated/uapi/asm are exported.
> +# They are preprocessed to remove __KERNEL__ section of the file.
> Â #
> Â # ==========================================================================
> Â
> Â # generated header directory
> Â gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
> Â
> +# Kbuild file is optional
> Â kbuild-file := $(srctree)/$(obj)/Kbuild
> -include $(kbuild-file)
> +-include $(kbuild-file)
> Â
> Â # called may set destination dir (when installing to asm/)
> Â _dst := $(if $(dst),$(dst),$(obj))
> @@ -25,9 +26,12 @@ include scripts/Kbuild.include
> Â
>  installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
> Â
> -header-y      := $(sort $(header-y))
> -subdirs       := $(patsubst %/,%,$(filter %/, $(header-y)))
> -header-y      := $(filter-out %/, $(header-y))
> +subdirs       := $(patsubst $(srctree)/$(obj)/%/.,%,$(wildcard $(srctree)/$(obj)/*/.))
> +subdirs       += $(subdir-y)
> +header-files  := $(notdir $(wildcard $(srctree)/$(obj)/*.h))
> +header-files  += $(notdir $(wildcard $(srctree)/$(obj)/*.agh))
> +genhdr-files  := $(notdir $(wildcard $(srctree)/$(gen)/*.h))
> +genhdr-files  := $(filter-out $(header-files), $(genhdr-files))
> Â
> Â # files used to track state of install/check
>  install-file  := $(installdir)/.install
> @@ -35,26 +39,17 @@ check-file    := $(installdir)/.check
> Â
> Â # generic-y list all files an architecture uses from asm-generic
> Â # Use this to build a list of headers which require a wrapper
> -wrapper-files := $(filter $(header-y), $(generic-y))
> +generic-files := $(notdir $(wildcard $(srctree)/include/uapi/asm-generic/*.h))
> +wrapper-files := $(filter $(generic-files), $(generic-y))
> +wrapper-files := $(filter-out $(header-files), $(wrapper-files))
> Â
>  srcdir        := $(srctree)/$(obj)
>  gendir        := $(objtree)/$(gen)
> Â
> Â # all headers files for this dir
> -header-y      := $(filter-out $(generic-y), $(header-y))
> -all-files     := $(header-y) $(genhdr-y) $(wrapper-files)
> +all-files     := $(header-files) $(genhdr-files) $(wrapper-files)
>  output-files  := $(addprefix $(installdir)/, $(all-files))
> Â
> -# Check that all expected files exist
> -$(foreach hdr, $(header-y), \
> -Â Â $(if $(wildcard $(srcdir)/$(hdr)),, \
> -Â Â Â Â Â Â Â $(error Missing UAPI file $(srcdir)/$(hdr)) \
> -Â Â Â ))
> -$(foreach hdr, $(genhdr-y), \
> -Â Â $(if $(wildcard $(gendir)/$(hdr)),, \
> -Â Â Â Â Â Â Â $(error Missing generated UAPI file $(gendir)/$(hdr)) \
> -Â Â ))
> -
> Â # Work out what needs to be removed
>  oldheaders    := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
>  unwanted      := $(filter-out $(all-files),$(oldheaders))
> @@ -67,8 +62,8 @@ printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
> Â quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â file$(if $(word 2, $(all-files)),s))
> Â Â Â Â Â Â Â cmd_install = \
> -Â Â Â Â Â Â Â Â $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-y); \
> -Â Â Â Â Â Â Â Â $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-y); \
> +Â Â Â Â Â Â Â Â $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \
> +Â Â Â Â Â Â Â Â $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \
>          for F in $(wrapper-files); do                                   \
> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â echo "\#include <asm-generic/$$F>" > $(installdir)/$$F;Â Â Â Â \
> Â Â Â Â Â Â Â Â Â done;Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â \
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 18:03 ` Bart Van Assche
@ 2017-01-11 18:03 ` Bart Van Assche
2017-01-11 20:29 ` gregkh
1 sibling, 0 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 18:03 UTC (permalink / raw)
To: gregkh
Cc: linux-parisc, linux-pci, ysato, linux-xtensa, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, uclinux-h8-devel,
linux-hexagon, geoff, jcmvbkbc, linux, iommu, linux-c6x-dev,
linux-am33-list, linux-ia64, linux-cris-kernel, linux-mips,
linux-m68k, a-jacquiot, dalias, linux-metag, nios2-dev, linux-sh,
shorne, lftan, deller, jdmason, linux-alpha, openrisc,
sparclinux, chris, davem, joro, tglx, linuxppc-dev, x86,
fenghua.yu, jejb, linux-snps-arc, msalter, dledford,
adi-buildroot-devel, linux-arm-kernel, starvik, dhowells,
hskinnemoen, mingo, stefan.kristiansson, tony.luck, linux-kernel,
jonas, geert, egtvedt, will.deacon, linux-s390
On Wed, 2017-01-11 at 07:46 +0100, Greg Kroah-Hartman wrote:
> On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > transfer data between memory and PCIe adapter. Because of performance
> > reasons it is important that the CPU cache is not flushed when such
> > drivers transfer data. Make this possible by allowing these drivers to
> > override the dma_map_ops pointer. Additionally, introduce the function
> > set_dma_ops() that will be used by a later patch in this series.
> >
> > Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
> > Cc: [ ... ]
>
> That's a crazy cc: list, you should break this up into smaller pieces,
> otherwise it's going to bounce...
That's a subset of what scripts/get_maintainer.pl came up with. Suggestions
for a more appropriate cc-list for a patch like this that touches all
architectures would be welcome.
> > diff --git a/include/linux/device.h b/include/linux/device.h
> > index 491b4c0ca633..c7cb225d36b0 100644
> > --- a/include/linux/device.h
> > +++ b/include/linux/device.h
> > @@ -885,6 +885,8 @@ struct dev_links_info {
> > * a higher-level representation of the device.
> > */
> > struct device {
> > + const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
> > +
> > struct device *parent;
> >
> > struct device_private *p;
>
> Why not put this new pointer down with the other dma fields in this
> structure? Any specific reason it needs to be first?
Are there CPU architectures for which access to the first member of a
structure can be encoded and/or executed more efficiently than access to
other members of a structure? If not, I'm fine with moving the new pointer
further down.
Bart.
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 6:48 ` Greg Kroah-Hartman
@ 2017-01-11 18:17 ` Bart Van Assche
2017-01-11 18:17 ` Bart Van Assche
2017-01-11 20:31 ` gregkh
0 siblings, 2 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 18:17 UTC (permalink / raw)
To: gregkh
Cc: linux-parisc, linux-pci, ysato, linux-xtensa, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, uclinux-h8-devel,
linux-hexagon, geoff, jcmvbkbc, linux, iommu, linux-c6x-dev,
linux-am33-list, linux-ia64, linux-cris-kernel, linux-mips,
linux-m68k, a-jacquiot, dalias, linux-metag, nios2-dev, linux-sh,
shorne, lftan, deller, jdmason, linux-alpha, openrisc,
sparclinux, chris, davem, joro, tglx, linuxppc-dev, x86,
fenghua.yu, jejb, linux-snps-arc, msalter, dledford,
adi-buildroot-devel, linux-arm-kernel, starvik, dhowells,
hskinnemoen, mingo, stefan.kristiansson, tony.luck, linux-kernel,
jonas, geert, egtvedt, will.deacon, linux-s390
On Wed, 2017-01-11 at 07:48 +0100, Greg Kroah-Hartman wrote:
> On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > transfer data between memory and PCIe adapter. Because of performance
> > reasons it is important that the CPU cache is not flushed when such
> > drivers transfer data. Make this possible by allowing these drivers to
> > override the dma_map_ops pointer. Additionally, introduce the function
> > set_dma_ops() that will be used by a later patch in this series.
>
> When you say things like "additionally", that's a huge flag that this
> needs to be split up into multiple patches. No need to add
> set_dma_ops() here in this patch.
Hello Greg,
Some architectures already define a set_dma_ops() function. So what this
patch does is to move both the dma_ops pointer and the set_dma_ops()
function from architecture-specific to architecture independent code. I
don't think that it is possible to separate these two changes. But I
understand that how I formulated the patch description caused confusion. I
will rewrite the patch description to make it more clear before I repost
this patch series.
> And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
> to keep the namespace sane, but that's probably a different set of
> patches...
Every time I rebase and retest this patch series on top of a new kernel
version I have to modify some of the patches to compensate for changes in
the architecture code. So I expect that once Linus merges these patches that
he will have to resolve one or more merge conflicts. Including a rename of
the functions that query and set the dma_ops pointer in this patch series
would increase the number of merge conflicts triggered by this patch series
and would make Linus' job harder. So I hope that you will allow me to
postpone that rename until a later time ...
Bart.
From justinpopo6@gmail.com Wed Jan 11 20:44:53 2017
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From: justinpopo6@gmail.com
To: linux-mips@linux-mips.org
Cc: bcm-kernel-feedback-list@broadcom.com, leonid.yegoshin@imgtec.com,
f.fainelli@gmail.com, Justin Chen <justin.chen@broadcom.com>
Subject: [PATCH] MIPS: Add cacheinfo support
Date: Wed, 11 Jan 2017 11:44:32 -0800
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From: Justin Chen <justin.chen@broadcom.com>
Add cacheinfo support for MIPS architectures.
Use information from the cpuinfo_mips struct to populate the
cacheinfo struct. This allows an architecture agnostic approach,
however this also means if cache information is not properly
populated within the cpuinfo_mips struct, there is nothing
we can do. (I.E. c-r3k.c)
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
---
arch/mips/kernel/Makefile | 2 +-
arch/mips/kernel/cacheinfo.c | 85 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 86 insertions(+), 1 deletion(-)
create mode 100644 arch/mips/kernel/cacheinfo.c
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 4a603a3..904a9c4 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := head.o vmlinux.lds
obj-y += cpu-probe.o branch.o elf.o entry.o genex.o idle.o irq.o \
process.o prom.o ptrace.o reset.o setup.o signal.o \
syscall.o time.o topology.o traps.o unaligned.o watch.o \
- vdso.o
+ vdso.o cacheinfo.o
ifdef CONFIG_FUNCTION_TRACER
CFLAGS_REMOVE_ftrace.o = -pg
diff --git a/arch/mips/kernel/cacheinfo.c b/arch/mips/kernel/cacheinfo.c
new file mode 100644
index 0000000..a92bbba
--- /dev/null
+++ b/arch/mips/kernel/cacheinfo.c
@@ -0,0 +1,85 @@
+/*
+ * MIPS cacheinfo support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/cacheinfo.h>
+
+/* Populates leaf and increments to next leaf */
+#define populate_cache(cache, leaf, c_level, c_type) \
+ leaf->type = c_type; \
+ leaf->level = c_level; \
+ leaf->coherency_line_size = c->cache.linesz; \
+ leaf->number_of_sets = c->cache.sets; \
+ leaf->ways_of_associativity = c->cache.ways; \
+ leaf->size = c->cache.linesz * c->cache.sets * \
+ c->cache.ways; \
+ leaf++;
+
+static int __init_cache_level(unsigned int cpu)
+{
+ struct cpuinfo_mips *c = ¤t_cpu_data;
+ struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
+ int levels = 0, leaves = 0;
+
+ /*
+ * If Dcache is not set, we assume the cache structures
+ * are not properly initialized.
+ */
+ if (c->dcache.waysize)
+ levels += 1;
+ else
+ return -ENOENT;
+
+
+ leaves += (c->icache.waysize) ? 2 : 1;
+
+ if (c->scache.waysize) {
+ levels++;
+ leaves++;
+ }
+
+ if (c->tcache.waysize) {
+ levels++;
+ leaves++;
+ }
+
+ this_cpu_ci->num_levels = levels;
+ this_cpu_ci->num_leaves = leaves;
+ return 0;
+}
+
+static int __populate_cache_leaves(unsigned int cpu)
+{
+ struct cpuinfo_mips *c = ¤t_cpu_data;
+ struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
+ struct cacheinfo *this_leaf = this_cpu_ci->info_list;
+
+ if (c->icache.waysize) {
+ populate_cache(dcache, this_leaf, 1, CACHE_TYPE_DATA);
+ populate_cache(icache, this_leaf, 1, CACHE_TYPE_INST);
+ } else {
+ populate_cache(dcache, this_leaf, 1, CACHE_TYPE_UNIFIED);
+ }
+
+ if (c->scache.waysize)
+ populate_cache(scache, this_leaf, 2, CACHE_TYPE_UNIFIED);
+
+ if (c->tcache.waysize)
+ populate_cache(tcache, this_leaf, 3, CACHE_TYPE_UNIFIED);
+
+ return 0;
+}
+
+DEFINE_SMP_CALL_CACHE_FUNCTION(init_cache_level)
+DEFINE_SMP_CALL_CACHE_FUNCTION(populate_cache_leaves)
--
2.10.2
^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 18:17 ` Bart Van Assche
@ 2017-01-11 18:17 ` Bart Van Assche
2017-01-11 20:31 ` gregkh
1 sibling, 0 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 18:17 UTC (permalink / raw)
To: gregkh
Cc: linux-parisc, linux-pci, ysato, linux-xtensa, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, uclinux-h8-devel,
linux-hexagon, geoff, jcmvbkbc, linux, iommu, linux-c6x-dev,
linux-am33-list, linux-ia64, linux-cris-kernel, linux-mips,
linux-m68k, a-jacquiot, dalias, linux-metag, nios2-dev, linux-sh,
shorne, lftan, deller, jdmason, linux-alpha, openrisc,
sparclinux, chris, davem, joro, tglx, linuxppc-dev, x86,
fenghua.yu, jejb, linux-snps-arc, msalter, dledford,
adi-buildroot-devel, linux-arm-kernel, starvik, dhowells,
hskinnemoen, mingo, stefan.kristiansson, tony.luck, linux-kernel,
jonas, geert, egtvedt, will.deacon, linux-s390
On Wed, 2017-01-11 at 07:48 +0100, Greg Kroah-Hartman wrote:
> On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > transfer data between memory and PCIe adapter. Because of performance
> > reasons it is important that the CPU cache is not flushed when such
> > drivers transfer data. Make this possible by allowing these drivers to
> > override the dma_map_ops pointer. Additionally, introduce the function
> > set_dma_ops() that will be used by a later patch in this series.
>
> When you say things like "additionally", that's a huge flag that this
> needs to be split up into multiple patches. No need to add
> set_dma_ops() here in this patch.
Hello Greg,
Some architectures already define a set_dma_ops() function. So what this
patch does is to move both the dma_ops pointer and the set_dma_ops()
function from architecture-specific to architecture independent code. I
don't think that it is possible to separate these two changes. But I
understand that how I formulated the patch description caused confusion. I
will rewrite the patch description to make it more clear before I repost
this patch series.
> And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
> to keep the namespace sane, but that's probably a different set of
> patches...
Every time I rebase and retest this patch series on top of a new kernel
version I have to modify some of the patches to compensate for changes in
the architecture code. So I expect that once Linus merges these patches that
he will have to resolve one or more merge conflicts. Including a rename of
the functions that query and set the dma_ops pointer in this patch series
would increase the number of merge conflicts triggered by this patch series
and would make Linus' job harder. So I hope that you will allow me to
postpone that rename until a later time ...
Bart.
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 18:03 ` Bart Van Assche
2017-01-11 18:03 ` Bart Van Assche
@ 2017-01-11 20:29 ` gregkh
2017-01-11 20:29 ` gregkh
1 sibling, 1 reply; 18+ messages in thread
From: gregkh @ 2017-01-11 20:29 UTC (permalink / raw)
To: Bart Van Assche
Cc: linux-parisc, linux-pci, ysato, linux-xtensa, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, uclinux-h8-devel,
linux-hexagon, geoff, jcmvbkbc, linux, iommu, linux-c6x-dev,
linux-am33-list, linux-ia64, linux-cris-kernel, linux-mips,
linux-m68k, a-jacquiot, dalias, linux-metag, nios2-dev, linux-sh,
shorne, lftan, deller, jdmason, linux-alpha, openrisc,
sparclinux, chris, davem, joro, tglx, linuxppc-dev, x86,
fenghua.yu, jejb, linux-snps-arc, msalter, dledford,
adi-buildroot-devel, linux-arm-kernel, starvik, dhowells,
hskinnemoen, mingo, stefan.kristiansson, tony.luck, linux-kernel,
jonas, geert, egtvedt, will.deacon, linux-s390
On Wed, Jan 11, 2017 at 06:03:15PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 07:46 +0100, Greg Kroah-Hartman wrote:
> > On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > > transfer data between memory and PCIe adapter. Because of performance
> > > reasons it is important that the CPU cache is not flushed when such
> > > drivers transfer data. Make this possible by allowing these drivers to
> > > override the dma_map_ops pointer. Additionally, introduce the function
> > > set_dma_ops() that will be used by a later patch in this series.
> > >
> > > Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
> > > Cc: [ ... ]
> >
> > That's a crazy cc: list, you should break this up into smaller pieces,
> > otherwise it's going to bounce...
>
> That's a subset of what scripts/get_maintainer.pl came up with. Suggestions
> for a more appropriate cc-list for a patch like this that touches all
> architectures would be welcome.
You need to break this patch up into a series that can be applied in
sequence, don't change everything all at once. That's a mess to merge,
as you are finding out.
> > > diff --git a/include/linux/device.h b/include/linux/device.h
> > > index 491b4c0ca633..c7cb225d36b0 100644
> > > --- a/include/linux/device.h
> > > +++ b/include/linux/device.h
> > > @@ -885,6 +885,8 @@ struct dev_links_info {
> > > * a higher-level representation of the device.
> > > */
> > > struct device {
> > > + const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
> > > +
> > > struct device *parent;
> > >
> > > struct device_private *p;
> >
> > Why not put this new pointer down with the other dma fields in this
> > structure? Any specific reason it needs to be first?
>
> Are there CPU architectures for which access to the first member of a
> structure can be encoded and/or executed more efficiently than access to
> other members of a structure? If not, I'm fine with moving the new pointer
> further down.
Why do you think that your pointer is the one that gets to be "most
efficient"? :)
Seriously, no, it doesn't matter at all, it's all just pointer math
which is very fast. Put it with the other stuff please, don't try to
optimize something without ever measuring it.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 20:29 ` gregkh
@ 2017-01-11 20:29 ` gregkh
0 siblings, 0 replies; 18+ messages in thread
From: gregkh @ 2017-01-11 20:29 UTC (permalink / raw)
To: Bart Van Assche
Cc: linux-parisc, linux-pci, ysato, linux-xtensa, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, uclinux-h8-devel,
linux-hexagon, geoff, jcmvbkbc, linux, iommu, linux-c6x-dev,
linux-am33-list, linux-ia64, linux-cris-kernel, linux-mips,
linux-m68k, a-jacquiot, dalias, linux-metag, nios2-dev, linux-sh,
shorne, lftan, deller, jdmason, linux-alpha, openrisc,
sparclinux, chris, davem, joro, tglx, linuxppc-dev, x86,
fenghua.yu, jejb, linux-snps-arc, msalter, dledford,
adi-buildroot-devel, linux-arm-kernel, starvik, dhowells,
hskinnemoen, mingo, stefan.kristiansson, tony.luck, linux-kernel,
jonas, geert, egtvedt, will.deacon, linux-s390
On Wed, Jan 11, 2017 at 06:03:15PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 07:46 +0100, Greg Kroah-Hartman wrote:
> > On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > > transfer data between memory and PCIe adapter. Because of performance
> > > reasons it is important that the CPU cache is not flushed when such
> > > drivers transfer data. Make this possible by allowing these drivers to
> > > override the dma_map_ops pointer. Additionally, introduce the function
> > > set_dma_ops() that will be used by a later patch in this series.
> > >
> > > Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
> > > Cc: [ ... ]
> >
> > That's a crazy cc: list, you should break this up into smaller pieces,
> > otherwise it's going to bounce...
>
> That's a subset of what scripts/get_maintainer.pl came up with. Suggestions
> for a more appropriate cc-list for a patch like this that touches all
> architectures would be welcome.
You need to break this patch up into a series that can be applied in
sequence, don't change everything all at once. That's a mess to merge,
as you are finding out.
> > > diff --git a/include/linux/device.h b/include/linux/device.h
> > > index 491b4c0ca633..c7cb225d36b0 100644
> > > --- a/include/linux/device.h
> > > +++ b/include/linux/device.h
> > > @@ -885,6 +885,8 @@ struct dev_links_info {
> > > * a higher-level representation of the device.
> > > */
> > > struct device {
> > > + const struct dma_map_ops *dma_ops; /* See also get_dma_ops() */
> > > +
> > > struct device *parent;
> > >
> > > struct device_private *p;
> >
> > Why not put this new pointer down with the other dma fields in this
> > structure? Any specific reason it needs to be first?
>
> Are there CPU architectures for which access to the first member of a
> structure can be encoded and/or executed more efficiently than access to
> other members of a structure? If not, I'm fine with moving the new pointer
> further down.
Why do you think that your pointer is the one that gets to be "most
efficient"? :)
Seriously, no, it doesn't matter at all, it's all just pointer math
which is very fast. Put it with the other stuff please, don't try to
optimize something without ever measuring it.
thanks,
greg k-h
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 18:17 ` Bart Van Assche
2017-01-11 18:17 ` Bart Van Assche
@ 2017-01-11 20:31 ` gregkh
2017-01-11 20:31 ` gregkh
2017-01-11 22:28 ` Bart Van Assche
1 sibling, 2 replies; 18+ messages in thread
From: gregkh @ 2017-01-11 20:31 UTC (permalink / raw)
To: Bart Van Assche
Cc: linux-parisc, linux-pci, ysato, linux-xtensa, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, uclinux-h8-devel,
linux-hexagon, geoff, jcmvbkbc, linux, iommu, linux-c6x-dev,
linux-am33-list, linux-ia64, linux-cris-kernel, linux-mips,
linux-m68k, a-jacquiot, dalias, linux-metag, nios2-dev, linux-sh,
shorne, lftan, deller, jdmason, linux-alpha, openrisc,
sparclinux, chris, davem, joro, tglx, linuxppc-dev, x86,
fenghua.yu, jejb, linux-snps-arc, msalter, dledford,
adi-buildroot-devel, linux-arm-kernel, starvik, dhowells,
hskinnemoen, mingo, stefan.kristiansson, tony.luck, linux-kernel,
jonas, geert, egtvedt, will.deacon, linux-s390
On Wed, Jan 11, 2017 at 06:17:03PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 07:48 +0100, Greg Kroah-Hartman wrote:
> > On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > > transfer data between memory and PCIe adapter. Because of performance
> > > reasons it is important that the CPU cache is not flushed when such
> > > drivers transfer data. Make this possible by allowing these drivers to
> > > override the dma_map_ops pointer. Additionally, introduce the function
> > > set_dma_ops() that will be used by a later patch in this series.
> >
> > When you say things like "additionally", that's a huge flag that this
> > needs to be split up into multiple patches. No need to add
> > set_dma_ops() here in this patch.
>
> Hello Greg,
>
> Some architectures already define a set_dma_ops() function. So what this
> patch does is to move both the dma_ops pointer and the set_dma_ops()
> function from architecture-specific to architecture independent code. I
> don't think that it is possible to separate these two changes. But I
> understand that how I formulated the patch description caused confusion. I
> will rewrite the patch description to make it more clear before I repost
> this patch series.
I think you should separate it out into multiple patches, this is a
mess, as you say below:
> > And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
> > to keep the namespace sane, but that's probably a different set of
> > patches...
>
> Every time I rebase and retest this patch series on top of a new kernel
> version I have to modify some of the patches to compensate for changes in
> the architecture code. So I expect that once Linus merges these patches that
> he will have to resolve one or more merge conflicts. Including a rename of
> the functions that query and set the dma_ops pointer in this patch series
> would increase the number of merge conflicts triggered by this patch series
> and would make Linus' job harder. So I hope that you will allow me to
> postpone that rename until a later time ...
That's a big sign that your patch series needs work. Break it up into
smaller pieces, it should be possible, which will make merges easier
(well, different in a way.)
Good luck, tree-wide changes are not simple.
greg k-h
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 20:31 ` gregkh
@ 2017-01-11 20:31 ` gregkh
2017-01-11 22:28 ` Bart Van Assche
1 sibling, 0 replies; 18+ messages in thread
From: gregkh @ 2017-01-11 20:31 UTC (permalink / raw)
To: Bart Van Assche
Cc: linux-parisc, linux-pci, ysato, linux-xtensa, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, uclinux-h8-devel,
linux-hexagon, geoff, jcmvbkbc, linux, iommu, linux-c6x-dev,
linux-am33-list, linux-ia64, linux-cris-kernel, linux-mips,
linux-m68k, a-jacquiot, dalias, linux-metag, nios2-dev, linux-sh,
shorne, lftan, deller, jdmason, linux-alpha, openrisc,
sparclinux, chris, davem, joro, tglx, linuxppc-dev, x86,
fenghua.yu, jejb, linux-snps-arc, msalter, dledford,
adi-buildroot-devel, linux-arm-kernel, starvik, dhowells,
hskinnemoen, mingo, stefan.kristiansson, tony.luck, linux-kernel,
jonas, geert, egtvedt, will.deacon, linux-s390
On Wed, Jan 11, 2017 at 06:17:03PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 07:48 +0100, Greg Kroah-Hartman wrote:
> > On Tue, Jan 10, 2017 at 04:56:41PM -0800, Bart Van Assche wrote:
> > > Several RDMA drivers, e.g. drivers/infiniband/hw/qib, use the CPU to
> > > transfer data between memory and PCIe adapter. Because of performance
> > > reasons it is important that the CPU cache is not flushed when such
> > > drivers transfer data. Make this possible by allowing these drivers to
> > > override the dma_map_ops pointer. Additionally, introduce the function
> > > set_dma_ops() that will be used by a later patch in this series.
> >
> > When you say things like "additionally", that's a huge flag that this
> > needs to be split up into multiple patches. No need to add
> > set_dma_ops() here in this patch.
>
> Hello Greg,
>
> Some architectures already define a set_dma_ops() function. So what this
> patch does is to move both the dma_ops pointer and the set_dma_ops()
> function from architecture-specific to architecture independent code. I
> don't think that it is possible to separate these two changes. But I
> understand that how I formulated the patch description caused confusion. I
> will rewrite the patch description to make it more clear before I repost
> this patch series.
I think you should separate it out into multiple patches, this is a
mess, as you say below:
> > And I'd argue that it should be dma_ops_set(), and dma_ops_get(), just
> > to keep the namespace sane, but that's probably a different set of
> > patches...
>
> Every time I rebase and retest this patch series on top of a new kernel
> version I have to modify some of the patches to compensate for changes in
> the architecture code. So I expect that once Linus merges these patches that
> he will have to resolve one or more merge conflicts. Including a rename of
> the functions that query and set the dma_ops pointer in this patch series
> would increase the number of merge conflicts triggered by this patch series
> and would make Linus' job harder. So I hope that you will allow me to
> postpone that rename until a later time ...
That's a big sign that your patch series needs work. Break it up into
smaller pieces, it should be possible, which will make merges easier
(well, different in a way.)
Good luck, tree-wide changes are not simple.
greg k-h
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 20:31 ` gregkh
2017-01-11 20:31 ` gregkh
@ 2017-01-11 22:28 ` Bart Van Assche
2017-01-11 22:28 ` Bart Van Assche
2017-01-12 7:35 ` gregkh
1 sibling, 2 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 22:28 UTC (permalink / raw)
To: gregkh
Cc: geert, will.deacon, linux-xtensa, linux-s390, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, geoff, jcmvbkbc,
linux, iommu, linux-ia64, linux-am33-list, linux-cris-kernel,
linux-mips, linux-pci, a-jacquiot, dalias, linux-m68k, nios2-dev,
linux-sh, shorne, linux-alpha, lftan, deller, jdmason, openrisc,
linux-c6x-dev, chris, sparclinux, davem, linux-hexagon, joro,
tglx, linuxppc-dev, x86, fenghua.yu, jejb, linux-snps-arc,
msalter, dledford, adi-buildroot-devel, linux-arm-kernel,
linux-metag, ysato, dhowells, starvik, mingo, hskinnemoen,
tony.luck, uclinux-h8-devel, linux-parisc, linux-kernel,
stefan.kristiansson, jonas, egtvedt
[-- Attachment #1: Type: text/plain, Size: 419 bytes --]
On Wed, 2017-01-11 at 21:31 +0100, gregkh@linuxfoundation.org wrote:
> That's a big sign that your patch series needs work. Break it up into
> smaller pieces, it should be possible, which will make merges easier
> (well, different in a way.)
Hello Greg,
Can you have a look at the attached patches? These three patches are a
splitup of the single patch at the start of this e-mail thread.
Thanks,
Bart.
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-treewide-Move-dma_ops-from-struct-dev_archdata-into-.patch --]
[-- Type: text/x-patch; name="0001-treewide-Move-dma_ops-from-struct-dev_archdata-into-.patch", Size: 22418 bytes --]
From a6fe3a6db80f2bc359e049b72e13aa171fff6ffa Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed, 11 Jan 2017 13:31:42 -0800
Subject: [PATCH 1/3] treewide: Move dma_ops from struct dev_archdata into
struct device
This change is necessary to make the dma_ops pointer configurable
per device on architectures that do not yet implement set_dma_ops().
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
---
arch/arm/include/asm/device.h | 1 -
arch/arm/include/asm/dma-mapping.h | 6 +++---
arch/arm64/include/asm/device.h | 1 -
arch/arm64/include/asm/dma-mapping.h | 4 ++--
arch/arm64/mm/dma-mapping.c | 8 ++++----
arch/m32r/include/asm/device.h | 1 -
arch/m32r/include/asm/dma-mapping.h | 4 ++--
arch/mips/include/asm/device.h | 5 -----
arch/mips/include/asm/dma-mapping.h | 4 ++--
arch/mips/pci/pci-octeon.c | 2 +-
arch/powerpc/include/asm/device.h | 4 ----
arch/powerpc/include/asm/dma-mapping.h | 4 ++--
arch/powerpc/kernel/dma.c | 2 +-
arch/powerpc/platforms/cell/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/setup.c | 2 +-
arch/powerpc/platforms/ps3/system-bus.c | 4 ++--
arch/powerpc/platforms/pseries/ibmebus.c | 2 +-
arch/s390/include/asm/device.h | 1 -
arch/s390/include/asm/dma-mapping.h | 4 ++--
arch/s390/pci/pci.c | 2 +-
arch/tile/include/asm/device.h | 3 ---
arch/tile/include/asm/dma-mapping.h | 6 +++---
arch/x86/include/asm/device.h | 3 ---
arch/x86/include/asm/dma-mapping.h | 4 ++--
arch/x86/kernel/pci-calgary_64.c | 4 ++--
arch/x86/pci/common.c | 2 +-
arch/x86/pci/sta2x11-fixup.c | 8 ++++----
arch/xtensa/include/asm/device.h | 4 ----
arch/xtensa/include/asm/dma-mapping.h | 4 ++--
drivers/infiniband/ulp/srpt/ib_srpt.c | 2 +-
drivers/iommu/amd_iommu.c | 6 +++---
drivers/misc/mic/bus/mic_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.c | 2 +-
include/linux/device.h | 1 +
35 files changed, 47 insertions(+), 69 deletions(-)
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index d8a572f9c187..220ba207be91 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,6 @@
#define ASMARM_DEVICE_H
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMABOUNCE
struct dmabounce_device_info *dmabounce;
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 1aabd781306f..312f4d0564d6 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -18,8 +18,8 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
return &arm_dma_ops;
}
@@ -34,7 +34,7 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
BUG_ON(!dev);
- dev->archdata.dma_ops = ops;
+ dev->dma_ops = ops;
}
#define HAVE_ARCH_DMA_SUPPORTED 1
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 00c678cc31e1..73d5bab015eb 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,6 @@
#define __ASM_DEVICE_H
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 1fedb43be712..58ae36cc3b60 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -29,8 +29,8 @@ extern const struct dma_map_ops dummy_dma_ops;
static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
/*
* We expect no ISA devices, and all other DMA masters are expected to
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index bcef6368d48f..dbab4c6c084b 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -837,7 +837,7 @@ static bool do_iommu_attach(struct device *dev, const struct iommu_ops *ops,
return false;
}
- dev->archdata.dma_ops = &iommu_dma_ops;
+ dev->dma_ops = &iommu_dma_ops;
return true;
}
@@ -941,7 +941,7 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
void arch_teardown_dma_ops(struct device *dev)
{
- dev->archdata.dma_ops = NULL;
+ dev->dma_ops = NULL;
}
#else
@@ -955,8 +955,8 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)
{
- if (!dev->archdata.dma_ops)
- dev->archdata.dma_ops = &swiotlb_dma_ops;
+ if (!dev->dma_ops)
+ dev->dma_ops = &swiotlb_dma_ops;
dev->archdata.dma_coherent = coherent;
__iommu_setup_dma_ops(dev, dma_base, size, iommu);
diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h
index 7955a9799466..5203fc87f080 100644
--- a/arch/m32r/include/asm/device.h
+++ b/arch/m32r/include/asm/device.h
@@ -4,7 +4,6 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 99c43d2f05dc..27b1597ac563 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -12,8 +12,8 @@
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index ebc5c1265473..6aa796f1081a 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -6,12 +6,7 @@
#ifndef _ASM_MIPS_DEVICE_H
#define _ASM_MIPS_DEVICE_H
-struct dma_map_ops;
-
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
#ifdef CONFIG_DMA_PERDEV_COHERENT
/* Non-zero if DMA is coherent with CPU caches */
bool dma_coherent;
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index b59b084a7569..dad3b09fe993 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -13,8 +13,8 @@ extern const struct dma_map_ops *mips_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
else
return mips_dma_map_ops;
}
diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index 308d051fc45c..9ee01936862e 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -167,7 +167,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig);
}
- dev->dev.archdata.dma_ops = octeon_pci_dma_map_ops;
+ dev->dev.dma_ops = octeon_pci_dma_map_ops;
return 0;
}
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 49cbb0fca233..0245bfcaac32 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -6,7 +6,6 @@
#ifndef _ASM_POWERPC_DEVICE_H
#define _ASM_POWERPC_DEVICE_H
-struct dma_map_ops;
struct device_node;
#ifdef CONFIG_PPC64
struct pci_dn;
@@ -20,9 +19,6 @@ struct iommu_table;
* drivers/macintosh/macio_asic.c
*/
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
/*
* These two used to be a union. However, with the hybrid ops we need
* both so here we store both a DMA offset for direct mappings and
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 2ec3eadf336f..59fbd4abcbf8 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -88,12 +88,12 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
if (unlikely(dev == NULL))
return NULL;
- return dev->archdata.dma_ops;
+ return dev->dma_ops;
}
static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
- dev->archdata.dma_ops = ops;
+ dev->dma_ops = ops;
}
/*
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 03b98f1f98ec..41c749586bd2 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -33,7 +33,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
struct dev_archdata __maybe_unused *sd = &dev->archdata;
#ifdef CONFIG_SWIOTLB
- if (sd->max_direct_dma_addr && sd->dma_ops == &swiotlb_dma_ops)
+ if (sd->max_direct_dma_addr && dev->dma_ops == &swiotlb_dma_ops)
pfn = min_t(u64, pfn, sd->max_direct_dma_addr >> PAGE_SHIFT);
#endif
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index e1413e69e5fe..71b995bbcae0 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -692,7 +692,7 @@ static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action,
return 0;
/* We use the PCI DMA ops */
- dev->archdata.dma_ops = get_pci_dma_ops();
+ dev->dma_ops = get_pci_dma_ops();
cell_dma_dev_setup(dev);
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index e74adc4e7fd8..7fec04de27fc 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
*/
if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
!firmware_has_feature(FW_FEATURE_LPAR)) {
- dev->dev.archdata.dma_ops = &dma_direct_ops;
+ dev->dev.dma_ops = &dma_direct_ops;
/*
* Set the coherent DMA mask to prevent the iommu
* being used unnecessarily
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 3182400cf48f..c4a3e93dc324 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
return 0;
/* We use the direct ops for localbus */
- dev->archdata.dma_ops = &dma_direct_ops;
+ dev->dma_ops = &dma_direct_ops;
return 0;
}
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index c81450d98794..2d2e5f80a3d3 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -756,11 +756,11 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
switch (dev->dev_type) {
case PS3_DEVICE_TYPE_IOC0:
- dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
+ dev->core.dma_ops = &ps3_ioc0_dma_ops;
dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count);
break;
case PS3_DEVICE_TYPE_SB:
- dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
+ dev->core.dma_ops = &ps3_sb_dma_ops;
dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count);
break;
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 2e36a0b8944a..99a6bf7f3bcf 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -169,7 +169,7 @@ static int ibmebus_create_device(struct device_node *dn)
return -ENOMEM;
dev->dev.bus = &ibmebus_bus_type;
- dev->dev.archdata.dma_ops = &ibmebus_dma_ops;
+ dev->dev.dma_ops = &ibmebus_dma_ops;
ret = of_device_add(dev);
if (ret)
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 7955a9799466..5203fc87f080 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,6 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 2776d205b1ff..a872027d0c1b 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -14,8 +14,8 @@ extern const struct dma_map_ops s390_pci_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 38e17d4d9884..82abef8b8574 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -641,7 +641,7 @@ int pcibios_add_device(struct pci_dev *pdev)
int i;
pdev->dev.groups = zpci_attr_groups;
- pdev->dev.archdata.dma_ops = &s390_pci_dma_ops;
+ pdev->dev.dma_ops = &s390_pci_dma_ops;
zpci_map_resources(pdev);
for (i = 0; i < PCI_BAR_COUNT; i++) {
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 25f23ac7d361..1cf45422a0df 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -17,9 +17,6 @@
#define _ASM_TILE_DEVICE_H
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
/* Offset of the DMA address from the PA. */
dma_addr_t dma_offset;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 4a06cc75b856..c0620697eaad 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -31,8 +31,8 @@ extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
else
return tile_dma_map_ops;
}
@@ -61,7 +61,7 @@ static inline void dma_mark_clean(void *addr, size_t size) {}
static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
- dev->archdata.dma_ops = ops;
+ dev->dma_ops = ops;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index b2d0b4ced7e3..1b3ef26e77df 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -2,9 +2,6 @@
#define _ASM_X86_DEVICE_H
struct dev_archdata {
-#ifdef CONFIG_X86_DEV_DMA_OPS
- const struct dma_map_ops *dma_ops;
-#endif
#if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
void *iommu; /* hook for IOMMU specific extension */
#endif
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 5e4772886a1e..94b5b96966cb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -32,10 +32,10 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
#else
- if (unlikely(!dev) || !dev->archdata.dma_ops)
+ if (unlikely(!dev) || !dev->dma_ops)
return dma_ops;
else
- return dev->archdata.dma_ops;
+ return dev->dma_ops;
#endif
}
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 17f180148c80..5070320780c6 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1177,7 +1177,7 @@ static int __init calgary_init(void)
tbl = find_iommu_table(&dev->dev);
if (translation_enabled(tbl))
- dev->dev.archdata.dma_ops = &calgary_dma_ops;
+ dev->dev.dma_ops = &calgary_dma_ops;
}
return ret;
@@ -1201,7 +1201,7 @@ static int __init calgary_init(void)
calgary_disable_translation(dev);
calgary_free_bus(dev);
pci_dev_put(dev); /* Undo calgary_init_one()'s pci_dev_get() */
- dev->dev.archdata.dma_ops = NULL;
+ dev->dev.dma_ops = NULL;
} while (1);
return ret;
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index a4fdfa7dcc1b..0cb52ae0a8f0 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -667,7 +667,7 @@ static void set_dma_domain_ops(struct pci_dev *pdev)
spin_lock(&dma_domain_list_lock);
list_for_each_entry(domain, &dma_domain_list, node) {
if (pci_domain_nr(pdev->bus) == domain->domain_nr) {
- pdev->dev.archdata.dma_ops = domain->dma_ops;
+ pdev->dev.dma_ops = domain->dma_ops;
break;
}
}
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index aa3828823170..ec008e800b45 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -203,7 +203,7 @@ static void sta2x11_setup_pdev(struct pci_dev *pdev)
return;
pci_set_consistent_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
pci_set_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
- pdev->dev.archdata.dma_ops = &sta2x11_dma_ops;
+ pdev->dev.dma_ops = &sta2x11_dma_ops;
/* We must enable all devices as master, for audio DMA to work */
pci_set_master(pdev);
@@ -223,7 +223,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
struct sta2x11_mapping *map;
- if (dev->archdata.dma_ops != &sta2x11_dma_ops) {
+ if (dev->dma_ops != &sta2x11_dma_ops) {
if (!dev->dma_mask)
return false;
return addr + size - 1 <= *dev->dma_mask;
@@ -247,7 +247,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
*/
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
- if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+ if (dev->dma_ops != &sta2x11_dma_ops)
return paddr;
return p2a(paddr, to_pci_dev(dev));
}
@@ -259,7 +259,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
*/
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
- if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+ if (dev->dma_ops != &sta2x11_dma_ops)
return daddr;
return a2p(daddr, to_pci_dev(dev));
}
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index a77d45d39f35..1deeb8ebbb1b 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -6,11 +6,7 @@
#ifndef _ASM_XTENSA_DEVICE_H
#define _ASM_XTENSA_DEVICE_H
-struct dma_map_ops;
-
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 50d23106cce0..9eecfc3c5dc4 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -22,8 +22,8 @@ extern const struct dma_map_ops xtensa_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
else
return &xtensa_dma_map_ops;
}
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 3fc3f8b5752b..7ff9de063c53 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2524,7 +2524,7 @@ static void srpt_add_one(struct ib_device *device)
int i;
pr_debug("device = %p, device->dma_ops = %p\n", device,
- device->dma_ops);
+ device->dma_device->dma_ops);
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (!sdev)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3703fb9db419..f7b86679bafe 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -515,7 +515,7 @@ static void iommu_uninit_device(struct device *dev)
iommu_group_remove_device(dev);
/* Remove dma-ops */
- dev->archdata.dma_ops = NULL;
+ dev->dma_ops = NULL;
/*
* We keep dev_data around for unplugged devices and reuse it when the
@@ -2164,7 +2164,7 @@ static int amd_iommu_add_device(struct device *dev)
dev_name(dev));
iommu_ignore_device(dev);
- dev->archdata.dma_ops = &nommu_dma_ops;
+ dev->dma_ops = &nommu_dma_ops;
goto out;
}
init_iommu_group(dev);
@@ -2181,7 +2181,7 @@ static int amd_iommu_add_device(struct device *dev)
if (domain->type == IOMMU_DOMAIN_IDENTITY)
dev_data->passthrough = true;
else
- dev->archdata.dma_ops = &amd_iommu_dma_ops;
+ dev->dma_ops = &amd_iommu_dma_ops;
out:
iommu_completion_wait(iommu);
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index c4b27a25662a..77b16ca66846 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -158,7 +158,7 @@ mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
mbdev->dev.parent = pdev;
mbdev->id.device = id;
mbdev->id.vendor = MBUS_DEV_ANY_ID;
- mbdev->dev.archdata.dma_ops = dma_ops;
+ mbdev->dev.dma_ops = dma_ops;
mbdev->dev.dma_mask = &mbdev->dev.coherent_dma_mask;
dma_set_mask(&mbdev->dev, DMA_BIT_MASK(64));
mbdev->dev.release = mbus_release_dev;
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index e5d377e97c86..a444db5f61fe 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -154,7 +154,7 @@ scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
sdev->dev.parent = pdev;
sdev->id.device = id;
sdev->id.vendor = SCIF_DEV_ANY_ID;
- sdev->dev.archdata.dma_ops = dma_ops;
+ sdev->dev.dma_ops = dma_ops;
sdev->dev.release = scif_release_dev;
sdev->hw_ops = hw_ops;
sdev->dnode = dnode;
diff --git a/include/linux/device.h b/include/linux/device.h
index 491b4c0ca633..46a567261ccc 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -921,6 +921,7 @@ struct device {
#ifdef CONFIG_NUMA
int numa_node; /* NUMA node this device is close to */
#endif
+ const struct dma_map_ops *dma_ops;
u64 *dma_mask; /* dma mask (if dma'able device) */
u64 coherent_dma_mask;/* Like dma_mask, but for
alloc_coherent mappings as
--
2.11.0
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #3: 0002-treewide-Consolidate-set_dma_ops-implementations.patch --]
[-- Type: text/x-patch; name="0002-treewide-Consolidate-set_dma_ops-implementations.patch", Size: 2885 bytes --]
From 83b5d5c62a2e02b0b17880c044b5748531d7d270 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed, 11 Jan 2017 13:40:54 -0800
Subject: [PATCH 2/3] treewide: Consolidate set_dma_ops() implementations
Now that all set_dma_ops() implementations are identical, remove
the architecture specific definitions and add a definition in
<linux/dma-mapping.h>.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
---
arch/arm/include/asm/dma-mapping.h | 6 ------
arch/powerpc/include/asm/dma-mapping.h | 5 -----
arch/tile/include/asm/dma-mapping.h | 5 -----
include/linux/dma-mapping.h | 5 +++++
4 files changed, 5 insertions(+), 16 deletions(-)
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 312f4d0564d6..c7432d647e53 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -31,12 +31,6 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
return __generic_dma_ops(dev);
}
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- BUG_ON(!dev);
- dev->dma_ops = ops;
-}
-
#define HAVE_ARCH_DMA_SUPPORTED 1
extern int dma_supported(struct device *dev, u64 mask);
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 59fbd4abcbf8..8275603ba4d5 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -91,11 +91,6 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
return dev->dma_ops;
}
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- dev->dma_ops = ops;
-}
-
/*
* get_dma_offset()
*
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index c0620697eaad..2562995a6ac9 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -59,11 +59,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- dev->dma_ops = ops;
-}
-
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index f1da68b82c63..e97f23e8b2d9 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -164,6 +164,11 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
#ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h>
+static inline void set_dma_ops(struct device *dev,
+ const struct dma_map_ops *dma_ops)
+{
+ dev->dma_ops = dma_ops;
+}
#else
/*
* Define the dma api to allow compilation but not linking of
--
2.11.0
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #4: 0003-treewide-Consolidate-get_dma_ops-implementations.patch --]
[-- Type: text/x-patch; name="0003-treewide-Consolidate-get_dma_ops-implementations.patch", Size: 19530 bytes --]
From 99788e97937d3f729947cd02e98457d642b8f115 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed, 11 Jan 2017 13:49:08 -0800
Subject: [PATCH 3/3] treewide: Consolidate get_dma_ops() implementations
Introduce a new architecture-specific get_arch_dma_ops() function.
Add get_dma_ops() in <linux/dma-mapping.h>.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
---
arch/alpha/include/asm/dma-mapping.h | 2 +-
arch/arc/include/asm/dma-mapping.h | 2 +-
arch/arm/include/asm/dma-mapping.h | 4 ++--
arch/arm64/include/asm/dma-mapping.h | 4 ++--
arch/avr32/include/asm/dma-mapping.h | 2 +-
arch/blackfin/include/asm/dma-mapping.h | 2 +-
arch/c6x/include/asm/dma-mapping.h | 2 +-
arch/cris/include/asm/dma-mapping.h | 4 ++--
arch/frv/include/asm/dma-mapping.h | 2 +-
arch/h8300/include/asm/dma-mapping.h | 2 +-
arch/hexagon/include/asm/dma-mapping.h | 5 +----
arch/ia64/include/asm/dma-mapping.h | 5 ++++-
arch/m32r/include/asm/dma-mapping.h | 4 +---
arch/m68k/include/asm/dma-mapping.h | 2 +-
arch/metag/include/asm/dma-mapping.h | 2 +-
arch/microblaze/include/asm/dma-mapping.h | 2 +-
arch/mips/include/asm/dma-mapping.h | 7 ++-----
arch/mn10300/include/asm/dma-mapping.h | 2 +-
arch/nios2/include/asm/dma-mapping.h | 2 +-
arch/openrisc/include/asm/dma-mapping.h | 2 +-
arch/parisc/include/asm/dma-mapping.h | 2 +-
arch/powerpc/include/asm/dma-mapping.h | 7 ++-----
arch/powerpc/include/asm/ps3.h | 2 +-
arch/s390/include/asm/dma-mapping.h | 4 +---
arch/sh/include/asm/dma-mapping.h | 2 +-
arch/sparc/include/asm/dma-mapping.h | 4 ++--
arch/tile/include/asm/dma-mapping.h | 7 ++-----
arch/unicore32/include/asm/dma-mapping.h | 2 +-
arch/x86/include/asm/dma-mapping.h | 9 +--------
arch/xtensa/include/asm/dma-mapping.h | 7 ++-----
include/linux/dma-mapping.h | 7 +++++++
31 files changed, 48 insertions(+), 64 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index d3480562411d..5d53666935e6 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index fdff3aa60052..94285031c4fb 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -20,7 +20,7 @@
extern const struct dma_map_ops arc_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &arc_dma_ops;
}
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index c7432d647e53..716656925975 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -23,12 +23,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &arm_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
if (xen_initial_domain())
return xen_dma_ops;
else
- return __generic_dma_ops(dev);
+ return __generic_dma_ops(NULL);
}
#define HAVE_ARCH_DMA_SUPPORTED 1
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 58ae36cc3b60..505756cdc67a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -39,12 +39,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
if (xen_initial_domain())
return xen_dma_ops;
else
- return __generic_dma_ops(dev);
+ return __generic_dma_ops(NULL);
}
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index b2b43c0e0774..7388451f9905 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -6,7 +6,7 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
extern const struct dma_map_ops avr32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &avr32_dma_ops;
}
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 320fb50fbd41..04254ac36bed 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
extern const struct dma_map_ops bfin_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &bfin_dma_ops;
}
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 88258b9ebc8e..aca9f755e4f8 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -19,7 +19,7 @@
extern const struct dma_map_ops c6x_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &c6x_dma_ops;
}
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index aae4fbc0a656..256169de3743 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -4,12 +4,12 @@
#ifdef CONFIG_PCI
extern const struct dma_map_ops v32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &v32_dma_ops;
}
#else
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
BUG();
return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 150cc00544a8..354900917585 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -9,7 +9,7 @@ extern unsigned long __nongprelbss dma_coherent_mem_end;
extern const struct dma_map_ops frv_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &frv_dma_ops;
}
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index f804bca4c13f..847c7562e046 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops h8300_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &h8300_dma_map_ops;
}
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index b812e917cd95..d3a87bd9b686 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -34,11 +34,8 @@ extern int bad_dma_address;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (unlikely(dev == NULL))
- return NULL;
-
return dma_ops;
}
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 05e467d56d86..73ec3c6f4cfe 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -23,7 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction);
-#define get_dma_ops(dev) platform_dma_get_ops(dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+ return platform_dma_get_ops(NULL);
+}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 27b1597ac563..c01d9f52d228 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,10 +10,8 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 863509939d5a..9210e470771b 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops m68k_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &m68k_dma_ops;
}
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index c156a7ac732f..fad3dc3cb210 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops metag_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &metag_dma_ops;
}
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index c7faf2fb51d6..3fad5e722a66 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@
*/
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &dma_direct_ops;
}
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index dad3b09fe993..aba71385f9d1 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -11,12 +11,9 @@
extern const struct dma_map_ops *mips_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return mips_dma_map_ops;
+ return mips_dma_map_ops;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 564e3927e005..737ef574b3ea 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -16,7 +16,7 @@
extern const struct dma_map_ops mn10300_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &mn10300_dma_ops;
}
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index aa00d839a64b..7b3c6f280293 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -12,7 +12,7 @@
extern const struct dma_map_ops nios2_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &nios2_dma_ops;
}
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 88acbedb4947..0c0075f17145 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -30,7 +30,7 @@
extern const struct dma_map_ops or1k_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &or1k_dma_map_ops;
}
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 1749073e44fc..5404c6a726b2 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -27,7 +27,7 @@ extern const struct dma_map_ops pcx_dma_ops;
extern const struct dma_map_ops *hppa_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return hppa_dma_ops;
}
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 8275603ba4d5..181a095468e4 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -78,17 +78,14 @@ extern struct dma_map_ops dma_iommu_ops;
#endif
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
/* We don't handle the NULL dev case for ISA for now. We could
* do it via an out of line call but it is not needed for now. The
* only ISA DMA device we support is the floppy and we have a hack
* in the floppy driver directly to get a device for us.
*/
- if (unlikely(dev == NULL))
- return NULL;
-
- return dev->dma_ops;
+ return NULL;
}
/*
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index a19f831a4cc9..17ee719e799f 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -435,7 +435,7 @@ static inline void *ps3_system_bus_get_drvdata(
return dev_get_drvdata(&dev->core);
}
-/* These two need global scope for get_dma_ops(). */
+/* These two need global scope for get_arch_dma_ops(). */
extern struct bus_type ps3_system_bus_type;
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index a872027d0c1b..3108b8dbe266 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -12,10 +12,8 @@
extern const struct dma_map_ops s390_pci_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index a7382c34c241..d99008af5f73 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -4,7 +4,7 @@
extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void);
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 3d2babc0c4c6..69cc627779f2 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -24,14 +24,14 @@ extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
return leon_dma_ops;
#endif
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
- if (dev->bus == &pci_bus_type)
+ if (bus == &pci_bus_type)
return &pci32_dma_ops;
#endif
return dma_ops;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 2562995a6ac9..bbc71a29b2c6 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -29,12 +29,9 @@ extern const struct dma_map_ops *gx_pci_dma_map_ops;
extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return tile_dma_map_ops;
+ return tile_dma_map_ops;
}
static inline dma_addr_t get_dma_offset(struct device *dev)
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 14d7729c7b73..518ba5848dd6 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -23,7 +23,7 @@
extern const struct dma_map_ops swiotlb_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &swiotlb_dma_map_ops;
}
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 94b5b96966cb..08a0838b83fb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -27,16 +27,9 @@ extern int panic_on_overflow;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
-#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
-#else
- if (unlikely(!dev) || !dev->dma_ops)
- return dma_ops;
- else
- return dev->dma_ops;
-#endif
}
bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 9eecfc3c5dc4..c6140fa8c0be 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -20,12 +20,9 @@
extern const struct dma_map_ops xtensa_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return &xtensa_dma_map_ops;
+ return &xtensa_dma_map_ops;
}
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index e97f23e8b2d9..ab8710888ddf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -164,6 +164,13 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
#ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h>
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
+ return get_arch_dma_ops(dev ? dev->bus : NULL);
+}
+
static inline void set_dma_ops(struct device *dev,
const struct dma_map_ops *dma_ops)
{
--
2.11.0
^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 22:28 ` Bart Van Assche
@ 2017-01-11 22:28 ` Bart Van Assche
2017-01-12 7:35 ` gregkh
1 sibling, 0 replies; 18+ messages in thread
From: Bart Van Assche @ 2017-01-11 22:28 UTC (permalink / raw)
To: gregkh
Cc: geert, will.deacon, linux-xtensa, linux-s390, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, geoff, jcmvbkbc,
linux, iommu, linux-ia64, linux-am33-list, linux-cris-kernel,
linux-mips, linux-pci, a-jacquiot, dalias, linux-m68k, nios2-dev,
linux-sh, shorne, linux-alpha, lftan, deller, jdmason, openrisc,
linux-c6x-dev, chris, sparclinux, davem, linux-hexagon, joro,
tglx, linuxppc-dev, x86, fenghua.yu, jejb, linux-snps-arc,
msalter, dledford, adi-buildroot-devel, linux-arm-kernel,
linux-metag, ysato, dhowells, starvik, mingo, hskinnemoen,
tony.luck, uclinux-h8-devel, linux-parisc, linux-kernel,
stefan.kristiansson, jonas, egtvedt
[-- Attachment #1: Type: text/plain, Size: 419 bytes --]
On Wed, 2017-01-11 at 21:31 +0100, gregkh@linuxfoundation.org wrote:
> That's a big sign that your patch series needs work. Break it up into
> smaller pieces, it should be possible, which will make merges easier
> (well, different in a way.)
Hello Greg,
Can you have a look at the attached patches? These three patches are a
splitup of the single patch at the start of this e-mail thread.
Thanks,
Bart.
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-treewide-Move-dma_ops-from-struct-dev_archdata-into-.patch --]
[-- Type: text/x-patch; name="0001-treewide-Move-dma_ops-from-struct-dev_archdata-into-.patch", Size: 22418 bytes --]
From a6fe3a6db80f2bc359e049b72e13aa171fff6ffa Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed, 11 Jan 2017 13:31:42 -0800
Subject: [PATCH 1/3] treewide: Move dma_ops from struct dev_archdata into
struct device
This change is necessary to make the dma_ops pointer configurable
per device on architectures that do not yet implement set_dma_ops().
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
---
arch/arm/include/asm/device.h | 1 -
arch/arm/include/asm/dma-mapping.h | 6 +++---
arch/arm64/include/asm/device.h | 1 -
arch/arm64/include/asm/dma-mapping.h | 4 ++--
arch/arm64/mm/dma-mapping.c | 8 ++++----
arch/m32r/include/asm/device.h | 1 -
arch/m32r/include/asm/dma-mapping.h | 4 ++--
arch/mips/include/asm/device.h | 5 -----
arch/mips/include/asm/dma-mapping.h | 4 ++--
arch/mips/pci/pci-octeon.c | 2 +-
arch/powerpc/include/asm/device.h | 4 ----
arch/powerpc/include/asm/dma-mapping.h | 4 ++--
arch/powerpc/kernel/dma.c | 2 +-
arch/powerpc/platforms/cell/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/iommu.c | 2 +-
arch/powerpc/platforms/pasemi/setup.c | 2 +-
arch/powerpc/platforms/ps3/system-bus.c | 4 ++--
arch/powerpc/platforms/pseries/ibmebus.c | 2 +-
arch/s390/include/asm/device.h | 1 -
arch/s390/include/asm/dma-mapping.h | 4 ++--
arch/s390/pci/pci.c | 2 +-
arch/tile/include/asm/device.h | 3 ---
arch/tile/include/asm/dma-mapping.h | 6 +++---
arch/x86/include/asm/device.h | 3 ---
arch/x86/include/asm/dma-mapping.h | 4 ++--
arch/x86/kernel/pci-calgary_64.c | 4 ++--
arch/x86/pci/common.c | 2 +-
arch/x86/pci/sta2x11-fixup.c | 8 ++++----
arch/xtensa/include/asm/device.h | 4 ----
arch/xtensa/include/asm/dma-mapping.h | 4 ++--
drivers/infiniband/ulp/srpt/ib_srpt.c | 2 +-
drivers/iommu/amd_iommu.c | 6 +++---
drivers/misc/mic/bus/mic_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.c | 2 +-
include/linux/device.h | 1 +
35 files changed, 47 insertions(+), 69 deletions(-)
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index d8a572f9c187..220ba207be91 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,6 @@
#define ASMARM_DEVICE_H
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMABOUNCE
struct dmabounce_device_info *dmabounce;
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 1aabd781306f..312f4d0564d6 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -18,8 +18,8 @@ extern const struct dma_map_ops arm_coherent_dma_ops;
static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
return &arm_dma_ops;
}
@@ -34,7 +34,7 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
BUG_ON(!dev);
- dev->archdata.dma_ops = ops;
+ dev->dma_ops = ops;
}
#define HAVE_ARCH_DMA_SUPPORTED 1
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 00c678cc31e1..73d5bab015eb 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,6 @@
#define __ASM_DEVICE_H
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 1fedb43be712..58ae36cc3b60 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -29,8 +29,8 @@ extern const struct dma_map_ops dummy_dma_ops;
static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
/*
* We expect no ISA devices, and all other DMA masters are expected to
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index bcef6368d48f..dbab4c6c084b 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -837,7 +837,7 @@ static bool do_iommu_attach(struct device *dev, const struct iommu_ops *ops,
return false;
}
- dev->archdata.dma_ops = &iommu_dma_ops;
+ dev->dma_ops = &iommu_dma_ops;
return true;
}
@@ -941,7 +941,7 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
void arch_teardown_dma_ops(struct device *dev)
{
- dev->archdata.dma_ops = NULL;
+ dev->dma_ops = NULL;
}
#else
@@ -955,8 +955,8 @@ static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)
{
- if (!dev->archdata.dma_ops)
- dev->archdata.dma_ops = &swiotlb_dma_ops;
+ if (!dev->dma_ops)
+ dev->dma_ops = &swiotlb_dma_ops;
dev->archdata.dma_coherent = coherent;
__iommu_setup_dma_ops(dev, dma_base, size, iommu);
diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h
index 7955a9799466..5203fc87f080 100644
--- a/arch/m32r/include/asm/device.h
+++ b/arch/m32r/include/asm/device.h
@@ -4,7 +4,6 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 99c43d2f05dc..27b1597ac563 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -12,8 +12,8 @@
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index ebc5c1265473..6aa796f1081a 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -6,12 +6,7 @@
#ifndef _ASM_MIPS_DEVICE_H
#define _ASM_MIPS_DEVICE_H
-struct dma_map_ops;
-
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
#ifdef CONFIG_DMA_PERDEV_COHERENT
/* Non-zero if DMA is coherent with CPU caches */
bool dma_coherent;
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index b59b084a7569..dad3b09fe993 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -13,8 +13,8 @@ extern const struct dma_map_ops *mips_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
else
return mips_dma_map_ops;
}
diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index 308d051fc45c..9ee01936862e 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -167,7 +167,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig);
}
- dev->dev.archdata.dma_ops = octeon_pci_dma_map_ops;
+ dev->dev.dma_ops = octeon_pci_dma_map_ops;
return 0;
}
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 49cbb0fca233..0245bfcaac32 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -6,7 +6,6 @@
#ifndef _ASM_POWERPC_DEVICE_H
#define _ASM_POWERPC_DEVICE_H
-struct dma_map_ops;
struct device_node;
#ifdef CONFIG_PPC64
struct pci_dn;
@@ -20,9 +19,6 @@ struct iommu_table;
* drivers/macintosh/macio_asic.c
*/
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
/*
* These two used to be a union. However, with the hybrid ops we need
* both so here we store both a DMA offset for direct mappings and
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 2ec3eadf336f..59fbd4abcbf8 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -88,12 +88,12 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
if (unlikely(dev == NULL))
return NULL;
- return dev->archdata.dma_ops;
+ return dev->dma_ops;
}
static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
- dev->archdata.dma_ops = ops;
+ dev->dma_ops = ops;
}
/*
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 03b98f1f98ec..41c749586bd2 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -33,7 +33,7 @@ static u64 __maybe_unused get_pfn_limit(struct device *dev)
struct dev_archdata __maybe_unused *sd = &dev->archdata;
#ifdef CONFIG_SWIOTLB
- if (sd->max_direct_dma_addr && sd->dma_ops == &swiotlb_dma_ops)
+ if (sd->max_direct_dma_addr && dev->dma_ops == &swiotlb_dma_ops)
pfn = min_t(u64, pfn, sd->max_direct_dma_addr >> PAGE_SHIFT);
#endif
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index e1413e69e5fe..71b995bbcae0 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -692,7 +692,7 @@ static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action,
return 0;
/* We use the PCI DMA ops */
- dev->archdata.dma_ops = get_pci_dma_ops();
+ dev->dma_ops = get_pci_dma_ops();
cell_dma_dev_setup(dev);
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index e74adc4e7fd8..7fec04de27fc 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -186,7 +186,7 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
*/
if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
!firmware_has_feature(FW_FEATURE_LPAR)) {
- dev->dev.archdata.dma_ops = &dma_direct_ops;
+ dev->dev.dma_ops = &dma_direct_ops;
/*
* Set the coherent DMA mask to prevent the iommu
* being used unnecessarily
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 3182400cf48f..c4a3e93dc324 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -363,7 +363,7 @@ static int pcmcia_notify(struct notifier_block *nb, unsigned long action,
return 0;
/* We use the direct ops for localbus */
- dev->archdata.dma_ops = &dma_direct_ops;
+ dev->dma_ops = &dma_direct_ops;
return 0;
}
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index c81450d98794..2d2e5f80a3d3 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -756,11 +756,11 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
switch (dev->dev_type) {
case PS3_DEVICE_TYPE_IOC0:
- dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops;
+ dev->core.dma_ops = &ps3_ioc0_dma_ops;
dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count);
break;
case PS3_DEVICE_TYPE_SB:
- dev->core.archdata.dma_ops = &ps3_sb_dma_ops;
+ dev->core.dma_ops = &ps3_sb_dma_ops;
dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count);
break;
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 2e36a0b8944a..99a6bf7f3bcf 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -169,7 +169,7 @@ static int ibmebus_create_device(struct device_node *dn)
return -ENOMEM;
dev->dev.bus = &ibmebus_bus_type;
- dev->dev.archdata.dma_ops = &ibmebus_dma_ops;
+ dev->dev.dma_ops = &ibmebus_dma_ops;
ret = of_device_add(dev);
if (ret)
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 7955a9799466..5203fc87f080 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,6 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 2776d205b1ff..a872027d0c1b 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -14,8 +14,8 @@ extern const struct dma_map_ops s390_pci_dma_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 38e17d4d9884..82abef8b8574 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -641,7 +641,7 @@ int pcibios_add_device(struct pci_dev *pdev)
int i;
pdev->dev.groups = zpci_attr_groups;
- pdev->dev.archdata.dma_ops = &s390_pci_dma_ops;
+ pdev->dev.dma_ops = &s390_pci_dma_ops;
zpci_map_resources(pdev);
for (i = 0; i < PCI_BAR_COUNT; i++) {
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 25f23ac7d361..1cf45422a0df 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -17,9 +17,6 @@
#define _ASM_TILE_DEVICE_H
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
-
/* Offset of the DMA address from the PA. */
dma_addr_t dma_offset;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 4a06cc75b856..c0620697eaad 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -31,8 +31,8 @@ extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
else
return tile_dma_map_ops;
}
@@ -61,7 +61,7 @@ static inline void dma_mark_clean(void *addr, size_t size) {}
static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
- dev->archdata.dma_ops = ops;
+ dev->dma_ops = ops;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index b2d0b4ced7e3..1b3ef26e77df 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -2,9 +2,6 @@
#define _ASM_X86_DEVICE_H
struct dev_archdata {
-#ifdef CONFIG_X86_DEV_DMA_OPS
- const struct dma_map_ops *dma_ops;
-#endif
#if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
void *iommu; /* hook for IOMMU specific extension */
#endif
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 5e4772886a1e..94b5b96966cb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -32,10 +32,10 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
#else
- if (unlikely(!dev) || !dev->archdata.dma_ops)
+ if (unlikely(!dev) || !dev->dma_ops)
return dma_ops;
else
- return dev->archdata.dma_ops;
+ return dev->dma_ops;
#endif
}
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 17f180148c80..5070320780c6 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -1177,7 +1177,7 @@ static int __init calgary_init(void)
tbl = find_iommu_table(&dev->dev);
if (translation_enabled(tbl))
- dev->dev.archdata.dma_ops = &calgary_dma_ops;
+ dev->dev.dma_ops = &calgary_dma_ops;
}
return ret;
@@ -1201,7 +1201,7 @@ static int __init calgary_init(void)
calgary_disable_translation(dev);
calgary_free_bus(dev);
pci_dev_put(dev); /* Undo calgary_init_one()'s pci_dev_get() */
- dev->dev.archdata.dma_ops = NULL;
+ dev->dev.dma_ops = NULL;
} while (1);
return ret;
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index a4fdfa7dcc1b..0cb52ae0a8f0 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -667,7 +667,7 @@ static void set_dma_domain_ops(struct pci_dev *pdev)
spin_lock(&dma_domain_list_lock);
list_for_each_entry(domain, &dma_domain_list, node) {
if (pci_domain_nr(pdev->bus) == domain->domain_nr) {
- pdev->dev.archdata.dma_ops = domain->dma_ops;
+ pdev->dev.dma_ops = domain->dma_ops;
break;
}
}
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index aa3828823170..ec008e800b45 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -203,7 +203,7 @@ static void sta2x11_setup_pdev(struct pci_dev *pdev)
return;
pci_set_consistent_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
pci_set_dma_mask(pdev, STA2X11_AMBA_SIZE - 1);
- pdev->dev.archdata.dma_ops = &sta2x11_dma_ops;
+ pdev->dev.dma_ops = &sta2x11_dma_ops;
/* We must enable all devices as master, for audio DMA to work */
pci_set_master(pdev);
@@ -223,7 +223,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
struct sta2x11_mapping *map;
- if (dev->archdata.dma_ops != &sta2x11_dma_ops) {
+ if (dev->dma_ops != &sta2x11_dma_ops) {
if (!dev->dma_mask)
return false;
return addr + size - 1 <= *dev->dma_mask;
@@ -247,7 +247,7 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
*/
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
- if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+ if (dev->dma_ops != &sta2x11_dma_ops)
return paddr;
return p2a(paddr, to_pci_dev(dev));
}
@@ -259,7 +259,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
*/
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
- if (dev->archdata.dma_ops != &sta2x11_dma_ops)
+ if (dev->dma_ops != &sta2x11_dma_ops)
return daddr;
return a2p(daddr, to_pci_dev(dev));
}
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index a77d45d39f35..1deeb8ebbb1b 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -6,11 +6,7 @@
#ifndef _ASM_XTENSA_DEVICE_H
#define _ASM_XTENSA_DEVICE_H
-struct dma_map_ops;
-
struct dev_archdata {
- /* DMA operations on that device */
- const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 50d23106cce0..9eecfc3c5dc4 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -22,8 +22,8 @@ extern const struct dma_map_ops xtensa_dma_map_ops;
static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
- if (dev && dev->archdata.dma_ops)
- return dev->archdata.dma_ops;
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
else
return &xtensa_dma_map_ops;
}
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 3fc3f8b5752b..7ff9de063c53 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2524,7 +2524,7 @@ static void srpt_add_one(struct ib_device *device)
int i;
pr_debug("device = %p, device->dma_ops = %p\n", device,
- device->dma_ops);
+ device->dma_device->dma_ops);
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (!sdev)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3703fb9db419..f7b86679bafe 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -515,7 +515,7 @@ static void iommu_uninit_device(struct device *dev)
iommu_group_remove_device(dev);
/* Remove dma-ops */
- dev->archdata.dma_ops = NULL;
+ dev->dma_ops = NULL;
/*
* We keep dev_data around for unplugged devices and reuse it when the
@@ -2164,7 +2164,7 @@ static int amd_iommu_add_device(struct device *dev)
dev_name(dev));
iommu_ignore_device(dev);
- dev->archdata.dma_ops = &nommu_dma_ops;
+ dev->dma_ops = &nommu_dma_ops;
goto out;
}
init_iommu_group(dev);
@@ -2181,7 +2181,7 @@ static int amd_iommu_add_device(struct device *dev)
if (domain->type == IOMMU_DOMAIN_IDENTITY)
dev_data->passthrough = true;
else
- dev->archdata.dma_ops = &amd_iommu_dma_ops;
+ dev->dma_ops = &amd_iommu_dma_ops;
out:
iommu_completion_wait(iommu);
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index c4b27a25662a..77b16ca66846 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -158,7 +158,7 @@ mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
mbdev->dev.parent = pdev;
mbdev->id.device = id;
mbdev->id.vendor = MBUS_DEV_ANY_ID;
- mbdev->dev.archdata.dma_ops = dma_ops;
+ mbdev->dev.dma_ops = dma_ops;
mbdev->dev.dma_mask = &mbdev->dev.coherent_dma_mask;
dma_set_mask(&mbdev->dev, DMA_BIT_MASK(64));
mbdev->dev.release = mbus_release_dev;
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index e5d377e97c86..a444db5f61fe 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -154,7 +154,7 @@ scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_
sdev->dev.parent = pdev;
sdev->id.device = id;
sdev->id.vendor = SCIF_DEV_ANY_ID;
- sdev->dev.archdata.dma_ops = dma_ops;
+ sdev->dev.dma_ops = dma_ops;
sdev->dev.release = scif_release_dev;
sdev->hw_ops = hw_ops;
sdev->dnode = dnode;
diff --git a/include/linux/device.h b/include/linux/device.h
index 491b4c0ca633..46a567261ccc 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -921,6 +921,7 @@ struct device {
#ifdef CONFIG_NUMA
int numa_node; /* NUMA node this device is close to */
#endif
+ const struct dma_map_ops *dma_ops;
u64 *dma_mask; /* dma mask (if dma'able device) */
u64 coherent_dma_mask;/* Like dma_mask, but for
alloc_coherent mappings as
--
2.11.0
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #3: 0002-treewide-Consolidate-set_dma_ops-implementations.patch --]
[-- Type: text/x-patch; name="0002-treewide-Consolidate-set_dma_ops-implementations.patch", Size: 2885 bytes --]
From 83b5d5c62a2e02b0b17880c044b5748531d7d270 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed, 11 Jan 2017 13:40:54 -0800
Subject: [PATCH 2/3] treewide: Consolidate set_dma_ops() implementations
Now that all set_dma_ops() implementations are identical, remove
the architecture specific definitions and add a definition in
<linux/dma-mapping.h>.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
---
arch/arm/include/asm/dma-mapping.h | 6 ------
arch/powerpc/include/asm/dma-mapping.h | 5 -----
arch/tile/include/asm/dma-mapping.h | 5 -----
include/linux/dma-mapping.h | 5 +++++
4 files changed, 5 insertions(+), 16 deletions(-)
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 312f4d0564d6..c7432d647e53 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -31,12 +31,6 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
return __generic_dma_ops(dev);
}
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- BUG_ON(!dev);
- dev->dma_ops = ops;
-}
-
#define HAVE_ARCH_DMA_SUPPORTED 1
extern int dma_supported(struct device *dev, u64 mask);
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 59fbd4abcbf8..8275603ba4d5 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -91,11 +91,6 @@ static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
return dev->dma_ops;
}
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- dev->dma_ops = ops;
-}
-
/*
* get_dma_offset()
*
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index c0620697eaad..2562995a6ac9 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -59,11 +59,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
-static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
-{
- dev->dma_ops = ops;
-}
-
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index f1da68b82c63..e97f23e8b2d9 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -164,6 +164,11 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
#ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h>
+static inline void set_dma_ops(struct device *dev,
+ const struct dma_map_ops *dma_ops)
+{
+ dev->dma_ops = dma_ops;
+}
#else
/*
* Define the dma api to allow compilation but not linking of
--
2.11.0
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #4: 0003-treewide-Consolidate-get_dma_ops-implementations.patch --]
[-- Type: text/x-patch; name="0003-treewide-Consolidate-get_dma_ops-implementations.patch", Size: 19530 bytes --]
From 99788e97937d3f729947cd02e98457d642b8f115 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Wed, 11 Jan 2017 13:49:08 -0800
Subject: [PATCH 3/3] treewide: Consolidate get_dma_ops() implementations
Introduce a new architecture-specific get_arch_dma_ops() function.
Add get_dma_ops() in <linux/dma-mapping.h>.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
---
arch/alpha/include/asm/dma-mapping.h | 2 +-
arch/arc/include/asm/dma-mapping.h | 2 +-
arch/arm/include/asm/dma-mapping.h | 4 ++--
arch/arm64/include/asm/dma-mapping.h | 4 ++--
arch/avr32/include/asm/dma-mapping.h | 2 +-
arch/blackfin/include/asm/dma-mapping.h | 2 +-
arch/c6x/include/asm/dma-mapping.h | 2 +-
arch/cris/include/asm/dma-mapping.h | 4 ++--
arch/frv/include/asm/dma-mapping.h | 2 +-
arch/h8300/include/asm/dma-mapping.h | 2 +-
arch/hexagon/include/asm/dma-mapping.h | 5 +----
arch/ia64/include/asm/dma-mapping.h | 5 ++++-
arch/m32r/include/asm/dma-mapping.h | 4 +---
arch/m68k/include/asm/dma-mapping.h | 2 +-
arch/metag/include/asm/dma-mapping.h | 2 +-
arch/microblaze/include/asm/dma-mapping.h | 2 +-
arch/mips/include/asm/dma-mapping.h | 7 ++-----
arch/mn10300/include/asm/dma-mapping.h | 2 +-
arch/nios2/include/asm/dma-mapping.h | 2 +-
arch/openrisc/include/asm/dma-mapping.h | 2 +-
arch/parisc/include/asm/dma-mapping.h | 2 +-
arch/powerpc/include/asm/dma-mapping.h | 7 ++-----
arch/powerpc/include/asm/ps3.h | 2 +-
arch/s390/include/asm/dma-mapping.h | 4 +---
arch/sh/include/asm/dma-mapping.h | 2 +-
arch/sparc/include/asm/dma-mapping.h | 4 ++--
arch/tile/include/asm/dma-mapping.h | 7 ++-----
arch/unicore32/include/asm/dma-mapping.h | 2 +-
arch/x86/include/asm/dma-mapping.h | 9 +--------
arch/xtensa/include/asm/dma-mapping.h | 7 ++-----
include/linux/dma-mapping.h | 7 +++++++
31 files changed, 48 insertions(+), 64 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index d3480562411d..5d53666935e6 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index fdff3aa60052..94285031c4fb 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -20,7 +20,7 @@
extern const struct dma_map_ops arc_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &arc_dma_ops;
}
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index c7432d647e53..716656925975 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -23,12 +23,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &arm_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
if (xen_initial_domain())
return xen_dma_ops;
else
- return __generic_dma_ops(dev);
+ return __generic_dma_ops(NULL);
}
#define HAVE_ARCH_DMA_SUPPORTED 1
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 58ae36cc3b60..505756cdc67a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -39,12 +39,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
if (xen_initial_domain())
return xen_dma_ops;
else
- return __generic_dma_ops(dev);
+ return __generic_dma_ops(NULL);
}
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index b2b43c0e0774..7388451f9905 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -6,7 +6,7 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
extern const struct dma_map_ops avr32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &avr32_dma_ops;
}
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 320fb50fbd41..04254ac36bed 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
extern const struct dma_map_ops bfin_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &bfin_dma_ops;
}
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 88258b9ebc8e..aca9f755e4f8 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -19,7 +19,7 @@
extern const struct dma_map_ops c6x_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &c6x_dma_ops;
}
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index aae4fbc0a656..256169de3743 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -4,12 +4,12 @@
#ifdef CONFIG_PCI
extern const struct dma_map_ops v32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &v32_dma_ops;
}
#else
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
BUG();
return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 150cc00544a8..354900917585 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -9,7 +9,7 @@ extern unsigned long __nongprelbss dma_coherent_mem_end;
extern const struct dma_map_ops frv_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &frv_dma_ops;
}
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index f804bca4c13f..847c7562e046 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops h8300_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &h8300_dma_map_ops;
}
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index b812e917cd95..d3a87bd9b686 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -34,11 +34,8 @@ extern int bad_dma_address;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (unlikely(dev == NULL))
- return NULL;
-
return dma_ops;
}
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 05e467d56d86..73ec3c6f4cfe 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -23,7 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction);
-#define get_dma_ops(dev) platform_dma_get_ops(dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+ return platform_dma_get_ops(NULL);
+}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 27b1597ac563..c01d9f52d228 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,10 +10,8 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 863509939d5a..9210e470771b 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops m68k_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &m68k_dma_ops;
}
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index c156a7ac732f..fad3dc3cb210 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops metag_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &metag_dma_ops;
}
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index c7faf2fb51d6..3fad5e722a66 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@
*/
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &dma_direct_ops;
}
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index dad3b09fe993..aba71385f9d1 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -11,12 +11,9 @@
extern const struct dma_map_ops *mips_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return mips_dma_map_ops;
+ return mips_dma_map_ops;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 564e3927e005..737ef574b3ea 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -16,7 +16,7 @@
extern const struct dma_map_ops mn10300_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &mn10300_dma_ops;
}
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index aa00d839a64b..7b3c6f280293 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -12,7 +12,7 @@
extern const struct dma_map_ops nios2_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &nios2_dma_ops;
}
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 88acbedb4947..0c0075f17145 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -30,7 +30,7 @@
extern const struct dma_map_ops or1k_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &or1k_dma_map_ops;
}
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 1749073e44fc..5404c6a726b2 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -27,7 +27,7 @@ extern const struct dma_map_ops pcx_dma_ops;
extern const struct dma_map_ops *hppa_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return hppa_dma_ops;
}
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 8275603ba4d5..181a095468e4 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -78,17 +78,14 @@ extern struct dma_map_ops dma_iommu_ops;
#endif
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
/* We don't handle the NULL dev case for ISA for now. We could
* do it via an out of line call but it is not needed for now. The
* only ISA DMA device we support is the floppy and we have a hack
* in the floppy driver directly to get a device for us.
*/
- if (unlikely(dev == NULL))
- return NULL;
-
- return dev->dma_ops;
+ return NULL;
}
/*
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index a19f831a4cc9..17ee719e799f 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -435,7 +435,7 @@ static inline void *ps3_system_bus_get_drvdata(
return dev_get_drvdata(&dev->core);
}
-/* These two need global scope for get_dma_ops(). */
+/* These two need global scope for get_arch_dma_ops(). */
extern struct bus_type ps3_system_bus_type;
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index a872027d0c1b..3108b8dbe266 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -12,10 +12,8 @@
extern const struct dma_map_ops s390_pci_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index a7382c34c241..d99008af5f73 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -4,7 +4,7 @@
extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void);
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 3d2babc0c4c6..69cc627779f2 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -24,14 +24,14 @@ extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
return leon_dma_ops;
#endif
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
- if (dev->bus == &pci_bus_type)
+ if (bus == &pci_bus_type)
return &pci32_dma_ops;
#endif
return dma_ops;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 2562995a6ac9..bbc71a29b2c6 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -29,12 +29,9 @@ extern const struct dma_map_ops *gx_pci_dma_map_ops;
extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return tile_dma_map_ops;
+ return tile_dma_map_ops;
}
static inline dma_addr_t get_dma_offset(struct device *dev)
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 14d7729c7b73..518ba5848dd6 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -23,7 +23,7 @@
extern const struct dma_map_ops swiotlb_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &swiotlb_dma_map_ops;
}
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 94b5b96966cb..08a0838b83fb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -27,16 +27,9 @@ extern int panic_on_overflow;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
-#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
-#else
- if (unlikely(!dev) || !dev->dma_ops)
- return dma_ops;
- else
- return dev->dma_ops;
-#endif
}
bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 9eecfc3c5dc4..c6140fa8c0be 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -20,12 +20,9 @@
extern const struct dma_map_ops xtensa_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return &xtensa_dma_map_ops;
+ return &xtensa_dma_map_ops;
}
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index e97f23e8b2d9..ab8710888ddf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -164,6 +164,13 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
#ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h>
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
+ return get_arch_dma_ops(dev ? dev->bus : NULL);
+}
+
static inline void set_dma_ops(struct device *dev,
const struct dma_map_ops *dma_ops)
{
--
2.11.0
^ permalink raw reply related [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-11 22:28 ` Bart Van Assche
2017-01-11 22:28 ` Bart Van Assche
@ 2017-01-12 7:35 ` gregkh
2017-01-12 7:35 ` gregkh
1 sibling, 1 reply; 18+ messages in thread
From: gregkh @ 2017-01-12 7:35 UTC (permalink / raw)
To: Bart Van Assche
Cc: geert, will.deacon, linux-xtensa, linux-s390, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, geoff, jcmvbkbc,
linux, iommu, linux-ia64, linux-am33-list, linux-cris-kernel,
linux-mips, linux-pci, a-jacquiot, dalias, linux-m68k, nios2-dev,
linux-sh, shorne, linux-alpha, lftan, deller, jdmason, openrisc,
linux-c6x-dev, chris, sparclinux, davem, linux-hexagon, joro,
tglx, linuxppc-dev, x86, fenghua.yu, jejb, linux-snps-arc,
msalter, dledford, adi-buildroot-devel, linux-arm-kernel,
linux-metag, ysato, dhowells, starvik, mingo, hskinnemoen,
tony.luck, uclinux-h8-devel, linux-parisc, linux-kernel,
stefan.kristiansson, jonas, egtvedt
On Wed, Jan 11, 2017 at 10:28:05PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 21:31 +0100, gregkh@linuxfoundation.org wrote:
> > That's a big sign that your patch series needs work. Break it up into
> > smaller pieces, it should be possible, which will make merges easier
> > (well, different in a way.)
>
> Hello Greg,
>
> Can you have a look at the attached patches? These three patches are a
> splitup of the single patch at the start of this e-mail thread.
Please send them in the proper format (i.e. one patch per email), and I
will be glad to review them. Otherwise it's really hard to do so, would
you want to review attachments?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 18+ messages in thread
* Re: [PATCH 2/9] Move dma_ops from archdata into struct device
2017-01-12 7:35 ` gregkh
@ 2017-01-12 7:35 ` gregkh
0 siblings, 0 replies; 18+ messages in thread
From: gregkh @ 2017-01-12 7:35 UTC (permalink / raw)
To: Bart Van Assche
Cc: geert, will.deacon, linux-xtensa, linux-s390, linux-rdma,
jesper.nilsson, mulix, hpa, catalin.marinas, geoff, jcmvbkbc,
linux, iommu, linux-ia64, linux-am33-list, linux-cris-kernel,
linux-mips, linux-pci, a-jacquiot, dalias, linux-m68k, nios2-dev,
linux-sh, shorne, linux-alpha, lftan, deller, jdmason, openrisc,
linux-c6x-dev, chris, sparclinux, davem, linux-hexagon, joro,
tglx, linuxppc-dev, x86, fenghua.yu, jejb, linux-snps-arc,
msalter, dledford, adi-buildroot-devel, linux-arm-kernel,
linux-metag, ysato, dhowells, starvik, mingo, hskinnemoen,
tony.luck, uclinux-h8-devel, linux-parisc, linux-kernel,
stefan.kristiansson, jonas, egtvedt
On Wed, Jan 11, 2017 at 10:28:05PM +0000, Bart Van Assche wrote:
> On Wed, 2017-01-11 at 21:31 +0100, gregkh@linuxfoundation.org wrote:
> > That's a big sign that your patch series needs work. Break it up into
> > smaller pieces, it should be possible, which will make merges easier
> > (well, different in a way.)
>
> Hello Greg,
>
> Can you have a look at the attached patches? These three patches are a
> splitup of the single patch at the start of this e-mail thread.
Please send them in the proper format (i.e. one patch per email), and I
will be glad to review them. Otherwise it's really hard to do so, would
you want to review attachments?
thanks,
greg k-h
^ permalink raw reply [flat|nested] 18+ messages in thread
end of thread, other threads:[~2017-01-12 7:35 UTC | newest]
Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
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2017-01-11 0:56 ` [PATCH 1/9] treewide: Constify most dma_map_ops structures Bart Van Assche
2017-01-11 0:56 ` Bart Van Assche
2017-01-11 0:56 ` [PATCH 2/9] Move dma_ops from archdata into struct device Bart Van Assche
2017-01-11 0:56 ` Bart Van Assche
2017-01-11 6:46 ` Greg Kroah-Hartman
2017-01-11 18:03 ` Bart Van Assche
2017-01-11 18:03 ` Bart Van Assche
2017-01-11 20:29 ` gregkh
2017-01-11 20:29 ` gregkh
2017-01-11 6:48 ` Greg Kroah-Hartman
2017-01-11 18:17 ` Bart Van Assche
2017-01-11 18:17 ` Bart Van Assche
2017-01-11 20:31 ` gregkh
2017-01-11 20:31 ` gregkh
2017-01-11 22:28 ` Bart Van Assche
2017-01-11 22:28 ` Bart Van Assche
2017-01-12 7:35 ` gregkh
2017-01-12 7:35 ` gregkh
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