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dma-mapping updates for 5.10

Browse Source 
- rework the non-coherent DMA allocator
  - move private definitions out of <linux/dma-mapping.h>
  - lower CMA_ALIGNMENT (Paul Cercueil)
  - remove the omap1 dma address translation in favor of the common
    code
  - make dma-direct aware of multiple dma offset ranges (Jim Quinlan)
  - support per-node DMA CMA areas (Barry Song)
  - increase the default seg boundary limit (Nicolin Chen)
  - misc fixes (Robin Murphy, Thomas Tai, Xu Wang)
  - various cleanups
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Merge tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - rework the non-coherent DMA allocator

 - move private definitions out of <linux/dma-mapping.h>

 - lower CMA_ALIGNMENT (Paul Cercueil)

 - remove the omap1 dma address translation in favor of the common code

 - make dma-direct aware of multiple dma offset ranges (Jim Quinlan)

 - support per-node DMA CMA areas (Barry Song)

 - increase the default seg boundary limit (Nicolin Chen)

 - misc fixes (Robin Murphy, Thomas Tai, Xu Wang)

 - various cleanups

* tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping: (63 commits)
  ARM/ixp4xx: add a missing include of dma-map-ops.h
  dma-direct: simplify the DMA_ATTR_NO_KERNEL_MAPPING handling
  dma-direct: factor out a dma_direct_alloc_from_pool helper
  dma-direct check for highmem pages in dma_direct_alloc_pages
  dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h>
  dma-mapping: move large parts of <linux/dma-direct.h> to kernel/dma
  dma-mapping: move dma-debug.h to kernel/dma/
  dma-mapping: remove <asm/dma-contiguous.h>
  dma-mapping: merge <linux/dma-contiguous.h> into <linux/dma-map-ops.h>
  dma-contiguous: remove dma_contiguous_set_default
  dma-contiguous: remove dev_set_cma_area
  dma-contiguous: remove dma_declare_contiguous
  dma-mapping: split <linux/dma-mapping.h>
  cma: decrease CMA_ALIGNMENT lower limit to 2
  firewire-ohci: use dma_alloc_pages
  dma-iommu: implement ->alloc_noncoherent
  dma-mapping: add new {alloc,free}_noncoherent dma_map_ops methods
  dma-mapping: add a new dma_alloc_pages API
  dma-mapping: remove dma_cache_sync
  53c700: convert to dma_alloc_noncoherent
  ...
This commit is contained in:
Linus Torvalds 2020-10-15 14:43:29 -07:00
commit 5a32c3413d
170 changed files with 1926 additions and 1704 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Documentation/admin-guide/kernel-parameters.txt
View File

@ -597,7 +597,18 @@
placement constraint by the physical address range of
memory allocations. A value of 0 disables CMA
altogether. For more information, see
include/linux/dma-contiguous.h
kernel/dma/contiguous.c
cma_pernuma=nn[MG]
[ARM64,KNL]
Sets the size of kernel per-numa memory area for
contiguous memory allocations. A value of 0 disables
per-numa CMA altogether. And If this option is not
specificed, the default value is 0.
With per-numa CMA enabled, DMA users on node nid will
first try to allocate buffer from the pernuma area
which is located in node nid, if the allocation fails,
they will fallback to the global default memory area.
cmo_free_hint= [PPC] Format: { yes | no }
Specify whether pages are marked as being inactive

99
Documentation/core-api/dma-api.rst
View File

@ -516,48 +516,56 @@ routines, e.g.:::
}
Part II - Advanced dma usage
----------------------------
Part II - Non-coherent DMA allocations
--------------------------------------
Warning: These pieces of the DMA API should not be used in the
majority of cases, since they cater for unlikely corner cases that
don't belong in usual drivers.
These APIs allow to allocate pages in the kernel direct mapping that are
guaranteed to be DMA addressable. This means that unlike dma_alloc_coherent,
virt_to_page can be called on the resulting address, and the resulting
struct page can be used for everything a struct page is suitable for.
If you don't understand how cache line coherency works between a
processor and an I/O device, you should not be using this part of the
API at all.
If you don't understand how cache line coherency works between a processor and
an I/O device, you should not be using this part of the API.
::
void *
dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle,
gfp_t flag, unsigned long attrs)
dma_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, enum dma_data_direction dir,
gfp_t gfp)
Identical to dma_alloc_coherent() except that when the
DMA_ATTR_NON_CONSISTENT flags is passed in the attrs argument, the
platform will choose to return either consistent or non-consistent memory
as it sees fit. By using this API, you are guaranteeing to the platform
that you have all the correct and necessary sync points for this memory
in the driver should it choose to return non-consistent memory.
This routine allocates a region of <size> bytes of consistent memory. It
returns a pointer to the allocated region (in the processor's virtual address
space) or NULL if the allocation failed. The returned memory may or may not
be in the kernels direct mapping. Drivers must not call virt_to_page on
the returned memory region.
Note: where the platform can return consistent memory, it will
guarantee that the sync points become nops.
It also returns a <dma_handle> which may be cast to an unsigned integer the
same width as the bus and given to the device as the DMA address base of
the region.
Warning: Handling non-consistent memory is a real pain. You should
only use this API if you positively know your driver will be
required to work on one of the rare (usually non-PCI) architectures
that simply cannot make consistent memory.
The dir parameter specified if data is read and/or written by the device,
see dma_map_single() for details.
The gfp parameter allows the caller to specify the ``GFP_`` flags (see
kmalloc()) for the allocation, but rejects flags used to specify a memory
zone such as GFP_DMA or GFP_HIGHMEM.
Before giving the memory to the device, dma_sync_single_for_device() needs
to be called, and before reading memory written by the device,
dma_sync_single_for_cpu(), just like for streaming DMA mappings that are
reused.
::
void
dma_free_attrs(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle, unsigned long attrs)
dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_handle, enum dma_data_direction dir)
Free memory allocated by the dma_alloc_attrs(). All common
parameters must be identical to those otherwise passed to dma_free_coherent,
and the attrs argument must be identical to the attrs passed to
dma_alloc_attrs().
Free a region of memory previously allocated using dma_alloc_noncoherent().
dev, size and dma_handle and dir must all be the same as those passed into
dma_alloc_noncoherent(). cpu_addr must be the virtual address returned by
the dma_alloc_noncoherent().
::
@ -575,41 +583,6 @@ memory or doing partial flushes.
into the width returned by this call. It will also always be a power
of two for easy alignment.
::
void
dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)
Do a partial sync of memory that was allocated by dma_alloc_attrs() with
the DMA_ATTR_NON_CONSISTENT flag starting at virtual address vaddr and
continuing on for size. Again, you *must* observe the cache line
boundaries when doing this.
::
int
dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr,
dma_addr_t device_addr, size_t size);
Declare region of memory to be handed out by dma_alloc_coherent() when
it's asked for coherent memory for this device.
phys_addr is the CPU physical address to which the memory is currently
assigned (this will be ioremapped so the CPU can access the region).
device_addr is the DMA address the device needs to be programmed
with to actually address this memory (this will be handed out as the
dma_addr_t in dma_alloc_coherent()).
size is the size of the area (must be multiples of PAGE_SIZE).
As a simplification for the platforms, only *one* such region of
memory may be declared per device.
For reasons of efficiency, most platforms choose to track the declared
region only at the granularity of a page. For smaller allocations,
you should use the dma_pool() API.
Part III - Debug drivers use of the DMA-API
-------------------------------------------

8
Documentation/core-api/dma-attributes.rst
View File

@ -25,14 +25,6 @@ Since it is optional for platforms to implement DMA_ATTR_WRITE_COMBINE,
those that do not will simply ignore the attribute and exhibit default
behavior.
DMA_ATTR_NON_CONSISTENT
-----------------------
DMA_ATTR_NON_CONSISTENT lets the platform to choose to return either
consistent or non-consistent memory as it sees fit. By using this API,
you are guaranteeing to the platform that you have all the correct and
necessary sync points for this memory in the driver.
DMA_ATTR_NO_KERNEL_MAPPING
--------------------------

2
MAINTAINERS
View File

@ -5216,7 +5216,7 @@ T: git git://git.infradead.org/users/hch/dma-mapping.git
F: include/asm-generic/dma-mapping.h
F: include/linux/dma-direct.h
F: include/linux/dma-mapping.h
F: include/linux/dma-noncoherent.h
F: include/linux/dma-map-ops.h
F: kernel/dma/
DMA-BUF HEAPS FRAMEWORK

11
arch/alpha/kernel/pci_iommu.c
View File

@ -11,7 +11,7 @@
#include <linux/export.h>
#include <linux/scatterlist.h>
#include <linux/log2.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/iommu-helper.h>
#include <asm/io.h>
@ -141,12 +141,7 @@ iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena,
unsigned long boundary_size;
base = arena->dma_base >> PAGE_SHIFT;
if (dev) {
boundary_size = dma_get_seg_boundary(dev) + 1;
boundary_size >>= PAGE_SHIFT;
} else {
boundary_size = 1UL << (32 - PAGE_SHIFT);
}
boundary_size = dma_get_seg_boundary_nr_pages(dev, PAGE_SHIFT);
/* Search forward for the first mask-aligned sequence of N free ptes */
ptes = arena->ptes;
@ -957,5 +952,7 @@ const struct dma_map_ops alpha_pci_ops = {
.dma_supported = alpha_pci_supported,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
.alloc_pages = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
EXPORT_SYMBOL(alpha_pci_ops);

2
arch/arc/mm/dma.c
View File

@ -3,7 +3,7 @@
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*/
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <asm/cache.h>
#include <asm/cacheflush.h>

3
arch/arm/common/dmabounce.c
View File

@ -24,7 +24,8 @@
#include <linux/slab.h>
#include <linux/page-flags.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/dma-direct.h>
#include <linux/dma-map-ops.h>
#include <linux/dmapool.h>
#include <linux/list.h>
#include <linux/scatterlist.h>

15
arch/arm/include/asm/dma-contiguous.h
View File

@ -1,15 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef ASMARM_DMA_CONTIGUOUS_H
#define ASMARM_DMA_CONTIGUOUS_H
#ifdef __KERNEL__
#ifdef CONFIG_DMA_CMA
#include <linux/types.h>
void dma_contiguous_early_fixup(phys_addr_t base, unsigned long size);
#endif
#endif
#endif

35
arch/arm/include/asm/dma-direct.h
View File

@ -2,13 +2,44 @@
#ifndef ASM_ARM_DMA_DIRECT_H
#define ASM_ARM_DMA_DIRECT_H 1
static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
#include <asm/memory.h>
/*
* dma_to_pfn/pfn_to_dma/virt_to_dma are architecture private
* functions used internally by the DMA-mapping API to provide DMA
* addresses. They must not be used by drivers.
*/
static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn)
{
if (dev && dev->dma_range_map)
pfn = PFN_DOWN(translate_phys_to_dma(dev, PFN_PHYS(pfn)));
return (dma_addr_t)__pfn_to_bus(pfn);
}
static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr)
{
unsigned long pfn = __bus_to_pfn(addr);
if (dev && dev->dma_range_map)
pfn = PFN_DOWN(translate_dma_to_phys(dev, PFN_PHYS(pfn)));
return pfn;
}
static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
{
if (dev)
return pfn_to_dma(dev, virt_to_pfn(addr));
return (dma_addr_t)__virt_to_bus((unsigned long)(addr));
}
static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
unsigned int offset = paddr & ~PAGE_MASK;
return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
}
static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dev_addr)
static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
{
unsigned int offset = dev_addr & ~PAGE_MASK;
return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;

1
arch/arm/include/asm/dma-iommu.h
View File

@ -6,7 +6,6 @@
#include <linux/mm_types.h>
#include <linux/scatterlist.h>
#include <linux/dma-debug.h>
#include <linux/kref.h>
struct dma_iommu_mapping {

71
arch/arm/include/asm/dma-mapping.h
View File

@ -6,9 +6,6 @@
#include <linux/mm_types.h>
#include <linux/scatterlist.h>
#include <linux/dma-debug.h>
#include <asm/memory.h>
#include <xen/xen.h>
#include <asm/xen/hypervisor.h>
@ -23,74 +20,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return NULL;
}
#ifdef __arch_page_to_dma
#error Please update to __arch_pfn_to_dma
#endif
/*
* dma_to_pfn/pfn_to_dma/dma_to_virt/virt_to_dma are architecture private
* functions used internally by the DMA-mapping API to provide DMA
* addresses. They must not be used by drivers.
*/
#ifndef __arch_pfn_to_dma
static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn)
{
if (dev)
pfn -= dev->dma_pfn_offset;
return (dma_addr_t)__pfn_to_bus(pfn);
}
static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr)
{
unsigned long pfn = __bus_to_pfn(addr);
if (dev)
pfn += dev->dma_pfn_offset;
return pfn;
}
static inline void *dma_to_virt(struct device *dev, dma_addr_t addr)
{
if (dev) {
unsigned long pfn = dma_to_pfn(dev, addr);
return phys_to_virt(__pfn_to_phys(pfn));
}
return (void *)__bus_to_virt((unsigned long)addr);
}
static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
{
if (dev)
return pfn_to_dma(dev, virt_to_pfn(addr));
return (dma_addr_t)__virt_to_bus((unsigned long)(addr));
}
#else
static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn)
{
return __arch_pfn_to_dma(dev, pfn);
}
static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr)
{
return __arch_dma_to_pfn(dev, addr);
}
static inline void *dma_to_virt(struct device *dev, dma_addr_t addr)
{
return __arch_dma_to_virt(dev, addr);
}
static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
{
return __arch_virt_to_dma(dev, addr);
}
#endif
/**
* arm_dma_alloc - allocate consistent memory for DMA
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices

18
arch/arm/mach-davinci/devices-da8xx.c
View File

@ -10,7 +10,7 @@
#include <linux/clk-provider.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/dmaengine.h>
#include <linux/init.h>
#include <linux/io.h>
@ -884,6 +884,7 @@ early_param("rproc_mem", early_rproc_mem);
void __init da8xx_rproc_reserve_cma(void)
{
struct cma *cma;
int ret;
if (!rproc_base || !rproc_size) {
@ -897,13 +898,16 @@ void __init da8xx_rproc_reserve_cma(void)
pr_info("%s: reserving 0x%lx @ 0x%lx...\n",
__func__, rproc_size, (unsigned long)rproc_base);
ret = dma_declare_contiguous(&da8xx_dsp.dev, rproc_size, rproc_base, 0);
if (ret)
pr_err("%s: dma_declare_contiguous failed %d\n", __func__, ret);
else
rproc_mem_inited = true;
ret = dma_contiguous_reserve_area(rproc_size, rproc_base, 0, &cma,
true);
if (ret) {
pr_err("%s: dma_contiguous_reserve_area failed %d\n",
__func__, ret);
return;
}
da8xx_dsp.dev.cma_area = cma;
rproc_mem_inited = true;
}
#else
void __init da8xx_rproc_reserve_cma(void)

2
arch/arm/mach-highbank/highbank.c
View File

@ -5,7 +5,7 @@
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clocksource.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/irqchip.h>

2
arch/arm/mach-imx/mach-imx27_visstrim_m10.c
View File

@ -16,7 +16,7 @@
#include <linux/input.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/leds.h>
#include <linux/platform_data/asoc-mx27vis.h>
#include <sound/tlv320aic32x4.h>

2
arch/arm/mach-imx/mach-mx31moboard.c
View File

@ -4,7 +4,7 @@
*/
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/gfp.h>
#include <linux/gpio.h>
#include <linux/init.h>

1
arch/arm/mach-ixp4xx/common.c
View File

@ -29,6 +29,7 @@
#include <linux/sched_clock.h>
#include <linux/irqchip/irq-ixp4xx.h>
#include <linux/platform_data/timer-ixp4xx.h>
#include <linux/dma-map-ops.h>
#include <mach/udc.h>
#include <mach/hardware.h>
#include <mach/io.h>

21
arch/arm/mach-keystone/keystone.c
View File

@ -8,6 +8,7 @@
*/
#include <linux/io.h>
#include <linux/of.h>
#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
@ -24,8 +25,7 @@
#include "keystone.h"
static unsigned long keystone_dma_pfn_offset __read_mostly;
#ifdef CONFIG_ARM_LPAE
static int keystone_platform_notifier(struct notifier_block *nb,
unsigned long event, void *data)
{
@ -38,9 +38,12 @@ static int keystone_platform_notifier(struct notifier_block *nb,
return NOTIFY_BAD;
if (!dev->of_node) {
dev->dma_pfn_offset = keystone_dma_pfn_offset;
dev_err(dev, "set dma_pfn_offset%08lx\n",
dev->dma_pfn_offset);
int ret = dma_direct_set_offset(dev, KEYSTONE_HIGH_PHYS_START,
KEYSTONE_LOW_PHYS_START,
KEYSTONE_HIGH_PHYS_SIZE);
dev_err(dev, "set dma_offset%08llx%s\n",
KEYSTONE_HIGH_PHYS_START - KEYSTONE_LOW_PHYS_START,
ret ? " failed" : "");
}
return NOTIFY_OK;
}
@ -48,14 +51,14 @@ static int keystone_platform_notifier(struct notifier_block *nb,
static struct notifier_block platform_nb = {
.notifier_call = keystone_platform_notifier,
};
#endif /* CONFIG_ARM_LPAE */
static void __init keystone_init(void)
{
if (PHYS_OFFSET >= KEYSTONE_HIGH_PHYS_START) {
keystone_dma_pfn_offset = PFN_DOWN(KEYSTONE_HIGH_PHYS_START -
KEYSTONE_LOW_PHYS_START);
#ifdef CONFIG_ARM_LPAE
if (PHYS_OFFSET >= KEYSTONE_HIGH_PHYS_START)
bus_register_notifier(&platform_bus_type, &platform_nb);
}
#endif
keystone_pm_runtime_init();
}

2
arch/arm/mach-mvebu/coherency.c
View File

@ -25,7 +25,7 @@
#include <linux/of_address.h>
#include <linux/io.h>
#include <linux/smp.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/mbus.h>

31
arch/arm/mach-omap1/include/mach/memory.h
View File

@ -14,42 +14,11 @@
* OMAP-1510 bus address is translated into a Local Bus address if the
* OMAP bus type is lbus. We do the address translation based on the
* device overriding the defaults used in the dma-mapping API.
* Note that the is_lbus_device() test is not very efficient on 1510
* because of the strncmp().
*/
#if defined(CONFIG_ARCH_OMAP15XX) && !defined(__ASSEMBLER__)
/*
* OMAP-1510 Local Bus address offset
*/
#define OMAP1510_LB_OFFSET UL(0x30000000)
#define virt_to_lbus(x) ((x) - PAGE_OFFSET + OMAP1510_LB_OFFSET)
#define lbus_to_virt(x) ((x) - OMAP1510_LB_OFFSET + PAGE_OFFSET)
#define is_lbus_device(dev) (cpu_is_omap15xx() && dev && (strncmp(dev_name(dev), "ohci", 4) == 0))
#define __arch_pfn_to_dma(dev, pfn) \
({ dma_addr_t __dma = __pfn_to_phys(pfn); \
if (is_lbus_device(dev)) \
__dma = __dma - PHYS_OFFSET + OMAP1510_LB_OFFSET; \
__dma; })
#define __arch_dma_to_pfn(dev, addr) \
({ dma_addr_t __dma = addr; \
if (is_lbus_device(dev)) \
__dma += PHYS_OFFSET - OMAP1510_LB_OFFSET; \
__phys_to_pfn(__dma); \
})
#define __arch_dma_to_virt(dev, addr) ({ (void *) (is_lbus_device(dev) ? \
lbus_to_virt(addr) : \
__phys_to_virt(addr)); })
#define __arch_virt_to_dma(dev, addr) ({ unsigned long __addr = (unsigned long)(addr); \
(dma_addr_t) (is_lbus_device(dev) ? \
virt_to_lbus(__addr) : \
__virt_to_phys(__addr)); })
#endif /* CONFIG_ARCH_OMAP15XX */
#endif

22
arch/arm/mach-omap1/usb.c
View File

@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <asm/irq.h>
@ -542,6 +543,25 @@ bad:
/* ULPD_APLL_CTRL */
#define APLL_NDPLL_SWITCH (1 << 0)
static int omap_1510_usb_ohci_notifier(struct notifier_block *nb,
unsigned long event, void *data)
{
struct device *dev = data;
if (event != BUS_NOTIFY_ADD_DEVICE)
return NOTIFY_DONE;
if (strncmp(dev_name(dev), "ohci", 4) == 0 &&
dma_direct_set_offset(dev, PHYS_OFFSET, OMAP1510_LB_OFFSET,
(u64)-1))
WARN_ONCE(1, "failed to set DMA offset\n");
return NOTIFY_OK;
}
static struct notifier_block omap_1510_usb_ohci_nb = {
.notifier_call = omap_1510_usb_ohci_notifier,
};
static void __init omap_1510_usb_init(struct omap_usb_config *config)
{
unsigned int val;
@ -600,6 +620,8 @@ static void __init omap_1510_usb_init(struct omap_usb_config *config)
if (config->register_host) {
int status;
bus_register_notifier(&platform_bus_type,
&omap_1510_usb_ohci_nb);
ohci_device.dev.platform_data = config;
status = platform_device_register(&ohci_device);
if (status)

2
arch/arm/mach-shmobile/setup-rcar-gen2.c
View File

@ -9,7 +9,7 @@
#include <linux/clocksource.h>
#include <linux/device.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/memblock.h>

3
arch/arm/mm/dma-mapping-nommu.c
View File

@ -8,6 +8,7 @@
#include <linux/export.h>
#include <linux/mm.h>
#include <linux/dma-direct.h>
#include <linux/dma-map-ops.h>
#include <linux/scatterlist.h>
#include <asm/cachetype.h>
@ -176,6 +177,8 @@ static void arm_nommu_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist
const struct dma_map_ops arm_nommu_dma_ops = {
.alloc = arm_nommu_dma_alloc,
.free = arm_nommu_dma_free,
.alloc_pages = dma_direct_alloc_pages,
.free_pages = dma_direct_free_pages,
.mmap = arm_nommu_dma_mmap,
.map_page = arm_nommu_dma_map_page,
.unmap_page = arm_nommu_dma_unmap_page,

9
arch/arm/mm/dma-mapping.c
View File

@ -15,9 +15,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/dma-direct.h>
#include <linux/dma-mapping.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/highmem.h>
#include <linux/memblock.h>
#include <linux/slab.h>
@ -35,7 +33,6 @@
#include <asm/dma-iommu.h>
#include <asm/mach/map.h>
#include <asm/system_info.h>
#include <asm/dma-contiguous.h>
#include <xen/swiotlb-xen.h>
#include "dma.h"
@ -199,6 +196,8 @@ static int arm_dma_supported(struct device *dev, u64 mask)
const struct dma_map_ops arm_dma_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
.alloc_pages = dma_direct_alloc_pages,
.free_pages = dma_direct_free_pages,
.mmap = arm_dma_mmap,
.get_sgtable = arm_dma_get_sgtable,
.map_page = arm_dma_map_page,
@ -226,6 +225,8 @@ static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma,
const struct dma_map_ops arm_coherent_dma_ops = {
.alloc = arm_coherent_dma_alloc,
.free = arm_coherent_dma_free,
.alloc_pages = dma_direct_alloc_pages,
.free_pages = dma_direct_free_pages,
.mmap = arm_coherent_dma_mmap,
.get_sgtable = arm_dma_get_sgtable,
.map_page = arm_coherent_dma_map_page,

2
arch/arm/mm/init.c
View File

@ -18,7 +18,7 @@
#include <linux/highmem.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/sizes.h>
#include <linux/stop_machine.h>
#include <linux/swiotlb.h>

2
arch/arm/xen/mm.c
View File

@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/cpu.h>
#include <linux/dma-direct.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/gfp.h>
#include <linux/highmem.h>
#include <linux/export.h>

2
arch/arm64/mm/dma-mapping.c
View File

@ -6,7 +6,7 @@
#include <linux/gfp.h>
#include <linux/cache.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/dma-iommu.h>
#include <xen/xen.h>
#include <xen/swiotlb-xen.h>

5
arch/arm64/mm/init.c
View File

@ -21,8 +21,7 @@
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/dma-direct.h>
#include <linux/dma-mapping.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/efi.h>
#include <linux/swiotlb.h>
#include <linux/vmalloc.h>
@ -429,6 +428,8 @@ void __init bootmem_init(void)
arm64_hugetlb_cma_reserve();
#endif
dma_pernuma_cma_reserve();
/*
* sparse_init() tries to allocate memory from memblock, so must be
* done after the fixed reservations

2
arch/c6x/mm/dma-coherent.c
View File

@ -15,7 +15,7 @@
#include <linux/bitops.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/memblock.h>
#include <asm/cacheflush.h>

2
arch/csky/kernel/setup.c
View File

@ -7,7 +7,7 @@
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/start_kernel.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/screen_info.h>
#include <asm/sections.h>
#include <asm/mmu_context.h>

4
arch/csky/mm/dma-mapping.c
View File

@ -2,9 +2,7 @@
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
#include <linux/cache.h>
#include <linux/dma-mapping.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/genalloc.h>
#include <linux/highmem.h>
#include <linux/io.h>

2
arch/hexagon/kernel/dma.c
View File

@ -5,7 +5,7 @@
* Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
*/
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/memblock.h>
#include <linux/genalloc.h>
#include <linux/module.h>

3
arch/ia64/Kconfig
View File

@ -8,6 +8,7 @@ menu "Processor type and features"
config IA64
bool
select ARCH_HAS_DMA_MARK_CLEAN
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ACPI
@ -32,8 +33,6 @@ config IA64
select TTY
select HAVE_ARCH_TRACEHOOK
select HAVE_VIRT_CPU_ACCOUNTING
select DMA_NONCOHERENT_MMAP
select ARCH_HAS_SYNC_DMA_FOR_CPU
select VIRT_TO_BUS
select GENERIC_IRQ_PROBE
select GENERIC_PENDING_IRQ if SMP

7
arch/ia64/hp/common/sba_iommu.c
View File

@ -33,7 +33,7 @@
#include <linux/bitops.h> /* hweight64() */
#include <linux/crash_dump.h>
#include <linux/iommu-helper.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/prefetch.h>
#include <linux/swiotlb.h>
@ -485,8 +485,7 @@ sba_search_bitmap(struct ioc *ioc, struct device *dev,
ASSERT(((unsigned long) ioc->res_hint & (sizeof(unsigned long) - 1UL)) == 0);
ASSERT(res_ptr < res_end);
boundary_size = (unsigned long long)dma_get_seg_boundary(dev) + 1;
boundary_size = ALIGN(boundary_size, 1ULL << iovp_shift) >> iovp_shift;
boundary_size = dma_get_seg_boundary_nr_pages(dev, iovp_shift);
BUG_ON(ioc->ibase & ~iovp_mask);
shift = ioc->ibase >> iovp_shift;
@ -2071,6 +2070,8 @@ static const struct dma_map_ops sba_dma_ops = {
.dma_supported = sba_dma_supported,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
.alloc_pages = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
static int __init

14
arch/ia64/kernel/dma-mapping.c
View File

@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-direct.h>
#include <linux/dma-map-ops.h>
#include <linux/export.h>
/* Set this to 1 if there is a HW IOMMU in the system */
@ -7,15 +7,3 @@ int iommu_detected __read_mostly;
const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
void *arch_dma_alloc(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
{
return dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs);
}
void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_addr, unsigned long attrs)
{
dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs);
}

5
arch/ia64/mm/init.c
View File

@ -8,7 +8,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/dmar.h>
#include <linux/efi.h>
#include <linux/elf.h>
@ -73,8 +73,7 @@ __ia64_sync_icache_dcache (pte_t pte)
* DMA can be marked as "clean" so that lazy_mmu_prot_update() doesn't have to
* flush them when they get mapped into an executable vm-area.
*/
void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
enum dma_data_direction dir)
void arch_dma_mark_clean(phys_addr_t paddr, size_t size)
{
unsigned long pfn = PHYS_PFN(paddr);

2
arch/m68k/kernel/dma.c
View File

@ -6,7 +6,7 @@
#undef DEBUG
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>

3
arch/microblaze/kernel/dma.c
View File

@ -8,9 +8,8 @@
*/
#include <linux/device.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/gfp.h>
#include <linux/dma-debug.h>
#include <linux/export.h>
#include <linux/bug.h>
#include <asm/cacheflush.h>

2
arch/microblaze/mm/consistent.c
View File

@ -11,7 +11,7 @@
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <asm/cpuinfo.h>
#include <asm/cacheflush.h>

2
arch/microblaze/mm/init.c
View File

@ -7,7 +7,7 @@
* for more details.
*/
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/memblock.h>
#include <linux/init.h>
#include <linux/kernel.h>

1
arch/mips/Kconfig
View File

@ -1136,7 +1136,6 @@ config DMA_NONCOHERENT
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_HAS_DMA_SET_UNCACHED
select DMA_NONCOHERENT_MMAP
select DMA_NONCOHERENT_CACHE_SYNC
select NEED_DMA_MAP_STATE
config SYS_HAS_EARLY_PRINTK

4
arch/mips/bmips/dma.c
View File

@ -40,7 +40,7 @@ static struct bmips_dma_range *bmips_dma_ranges;
#define FLUSH_RAC 0x100
dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t pa)
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t pa)
{
struct bmips_dma_range *r;
@ -52,7 +52,7 @@ dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t pa)
return pa;
}
phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr)
{
struct bmips_dma_range *r;

4
arch/mips/cavium-octeon/dma-octeon.c
View File

@ -168,7 +168,7 @@ void __init octeon_pci_dma_init(void)
}
#endif /* CONFIG_PCI */
dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
#ifdef CONFIG_PCI
if (dev && dev_is_pci(dev))
@ -177,7 +177,7 @@ dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
return paddr;
}
phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
#ifdef CONFIG_PCI
if (dev && dev_is_pci(dev))

4
arch/mips/include/asm/dma-direct.h
View File

@ -2,7 +2,7 @@
#ifndef _MIPS_DMA_DIRECT_H
#define _MIPS_DMA_DIRECT_H 1
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);
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);
#endif /* _MIPS_DMA_DIRECT_H */

2
arch/mips/include/asm/jazzdma.h
View File

@ -10,8 +10,6 @@
*/
extern unsigned long vdma_alloc(unsigned long paddr, unsigned long size);
extern int vdma_free(unsigned long laddr);
extern int vdma_remap(unsigned long laddr, unsigned long paddr,
unsigned long size);
extern unsigned long vdma_phys2log(unsigned long paddr);
extern unsigned long vdma_log2phys(unsigned long laddr);
extern void vdma_stats(void); /* for debugging only */

103
arch/mips/jazz/jazzdma.c
View File

@ -16,8 +16,7 @@
#include <linux/memblock.h>
#include <linux/spinlock.h>
#include <linux/gfp.h>
#include <linux/dma-direct.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <asm/mipsregs.h>
#include <asm/jazz.h>
#include <asm/io.h>
@ -209,76 +208,6 @@ int vdma_free(unsigned long laddr)
EXPORT_SYMBOL(vdma_free);
/*
* Map certain page(s) to another physical address.
* Caller must have allocated the page(s) before.
*/
int vdma_remap(unsigned long laddr, unsigned long paddr, unsigned long size)
{
int first, pages;
if (laddr > 0xffffff) {
if (vdma_debug)
printk
("vdma_map: Invalid logical address: %08lx\n",
laddr);
return -EINVAL; /* invalid logical address */
}
if (paddr > 0x1fffffff) {
if (vdma_debug)
printk
("vdma_map: Invalid physical address: %08lx\n",
paddr);
return -EINVAL; /* invalid physical address */
}
pages = (((paddr & (VDMA_PAGESIZE - 1)) + size) >> 12) + 1;
first = laddr >> 12;
if (vdma_debug)
printk("vdma_remap: first=%x, pages=%x\n", first, pages);
if (first + pages > VDMA_PGTBL_ENTRIES) {
if (vdma_debug)
printk("vdma_alloc: Invalid size: %08lx\n", size);
return -EINVAL;
}
paddr &= ~(VDMA_PAGESIZE - 1);
while (pages > 0 && first < VDMA_PGTBL_ENTRIES) {
if (pgtbl[first].owner != laddr) {
if (vdma_debug)
printk("Trying to remap other's pages.\n");
return -EPERM; /* not owner */
}
pgtbl[first].frame = paddr;
paddr += VDMA_PAGESIZE;
first++;
pages--;
}
/*
* Update translation table
*/
r4030_write_reg32(JAZZ_R4030_TRSTBL_INV, 0);
if (vdma_debug > 2) {
int i;
pages = (((paddr & (VDMA_PAGESIZE - 1)) + size) >> 12) + 1;
first = laddr >> 12;
printk("LADDR: ");
for (i = first; i < first + pages; i++)
printk("%08x ", i << 12);
printk("\nPADDR: ");
for (i = first; i < first + pages; i++)
printk("%08x ", pgtbl[i].frame);
printk("\nOWNER: ");
for (i = first; i < first + pages; i++)
printk("%08x ", pgtbl[i].owner);
printk("\n");
}
return 0;
}
/*
* Translate a physical address to a logical address.
* This will return the logical address of the first
@ -562,26 +491,34 @@ int vdma_get_enable(int channel)
static void *jazz_dma_alloc(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
{
struct page *page;
void *ret;
ret = dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs);
if (!ret)
return NULL;
if (attrs & DMA_ATTR_NO_WARN)
gfp |= __GFP_NOWARN;
size = PAGE_ALIGN(size);
page = alloc_pages(gfp, get_order(size));
if (!page)
return NULL;
ret = page_address(page);
memset(ret, 0, size);
*dma_handle = vdma_alloc(virt_to_phys(ret), size);
if (*dma_handle == DMA_MAPPING_ERROR) {
dma_direct_free_pages(dev, size, ret, *dma_handle, attrs);
return NULL;
}
if (*dma_handle == DMA_MAPPING_ERROR)
goto out_free_pages;
arch_dma_prep_coherent(page, size);
return (void *)(UNCAC_BASE + __pa(ret));
return ret;
out_free_pages:
__free_pages(page, get_order(size));
return NULL;
}
static void jazz_dma_free(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle, unsigned long attrs)
{
vdma_free(dma_handle);
dma_direct_free_pages(dev, size, vaddr, dma_handle, attrs);
__free_pages(virt_to_page(vaddr), get_order(size));
}
static dma_addr_t jazz_dma_map_page(struct device *dev, struct page *page,
@ -678,9 +615,9 @@ const struct dma_map_ops jazz_dma_ops = {
.sync_single_for_device = jazz_dma_sync_single_for_device,
.sync_sg_for_cpu = jazz_dma_sync_sg_for_cpu,
.sync_sg_for_device = jazz_dma_sync_sg_for_device,
.dma_supported = dma_direct_supported,
.cache_sync = arch_dma_cache_sync,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
.alloc_pages = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
EXPORT_SYMBOL(jazz_dma_ops);

2
arch/mips/kernel/setup.c
View File

@ -24,7 +24,7 @@
#include <linux/kexec.h>
#include <linux/sizes.h>
#include <linux/device.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/decompress/generic.h>
#include <linux/of_fdt.h>
#include <linux/of_reserved_mem.h>

4
arch/mips/loongson2ef/fuloong-2e/dma.c
View File

@ -1,12 +1,12 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-direct.h>
dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
return paddr | 0x80000000;
}
phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr)
{
return dma_addr & 0x7fffffff;
}

4
arch/mips/loongson2ef/lemote-2f/dma.c
View File

@ -1,12 +1,12 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-direct.h>
dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
return paddr | 0x80000000;
}
phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr)
{
if (dma_addr > 0x8fffffff)
return dma_addr;

4
arch/mips/loongson64/dma.c
View File

@ -4,7 +4,7 @@
#include <linux/swiotlb.h>
#include <boot_param.h>
dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
/* We extract 2bit node id (bit 44~47, only bit 44~45 used now) from
* Loongson-3's 48bit address space and embed it into 40bit */
@ -13,7 +13,7 @@ dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
return ((nid << 44) ^ paddr) | (nid << node_id_offset);
}
phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
/* We extract 2bit node id (bit 44~47, only bit 44~45 used now) from
* Loongson-3's 48bit address space and embed it into 40bit */

51
arch/mips/mm/dma-noncoherent.c
View File

@ -5,8 +5,7 @@
* swiped from i386, and cloned for MIPS by Geert, polished by Ralf.
*/
#include <linux/dma-direct.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/highmem.h>
#include <asm/cache.h>
@ -55,22 +54,34 @@ void *arch_dma_set_uncached(void *addr, size_t size)
return (void *)(__pa(addr) + UNCAC_BASE);
}
static inline void dma_sync_virt(void *addr, size_t size,
static inline void dma_sync_virt_for_device(void *addr, size_t size,
enum dma_data_direction dir)
{
switch (dir) {
case DMA_TO_DEVICE:
dma_cache_wback((unsigned long)addr, size);
break;
case DMA_FROM_DEVICE:
dma_cache_inv((unsigned long)addr, size);
break;
case DMA_BIDIRECTIONAL:
dma_cache_wback_inv((unsigned long)addr, size);
break;
default:
BUG();
}
}
static inline void dma_sync_virt_for_cpu(void *addr, size_t size,
enum dma_data_direction dir)
{
switch (dir) {
case DMA_TO_DEVICE:
break;
case DMA_FROM_DEVICE:
case DMA_BIDIRECTIONAL:
dma_cache_inv((unsigned long)addr, size);
break;
default:
BUG();
}
@ -82,7 +93,7 @@ static inline void dma_sync_virt(void *addr, size_t size,
* configured then the bulk of this loop gets optimized out.
*/
static inline void dma_sync_phys(phys_addr_t paddr, size_t size,
enum dma_data_direction dir)
enum dma_data_direction dir, bool for_device)
{
struct page *page = pfn_to_page(paddr >> PAGE_SHIFT);
unsigned long offset = paddr & ~PAGE_MASK;
@ -90,18 +101,20 @@ static inline void dma_sync_phys(phys_addr_t paddr, size_t size,
do {
size_t len = left;
void *addr;
if (PageHighMem(page)) {
void *addr;
if (offset + len > PAGE_SIZE)
len = PAGE_SIZE - offset;
}
addr = kmap_atomic(page);
if (for_device)
dma_sync_virt_for_device(addr + offset, len, dir);
else
dma_sync_virt_for_cpu(addr + offset, len, dir);
kunmap_atomic(addr);
addr = kmap_atomic(page);
dma_sync_virt(addr + offset, len, dir);
kunmap_atomic(addr);
} else
dma_sync_virt(page_address(page) + offset, size, dir);
offset = 0;
page++;
left -= len;
@ -111,7 +124,7 @@ static inline void dma_sync_phys(phys_addr_t paddr, size_t size,
void arch_sync_dma_for_device(phys_addr_t paddr, size_t size,
enum dma_data_direction dir)
{
dma_sync_phys(paddr, size, dir);
dma_sync_phys(paddr, size, dir, true);
}
#ifdef CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU
@ -119,18 +132,10 @@ void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
enum dma_data_direction dir)
{
if (cpu_needs_post_dma_flush())
dma_sync_phys(paddr, size, dir);
dma_sync_phys(paddr, size, dir, false);
}
#endif
void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)
{
BUG_ON(direction == DMA_NONE);
dma_sync_virt(vaddr, size, direction);
}
#ifdef CONFIG_DMA_PERDEV_COHERENT
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)

4
arch/mips/pci/pci-ar2315.c
View File

@ -170,12 +170,12 @@ static inline dma_addr_t ar2315_dev_offset(struct device *dev)
return 0;
}
dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
return paddr + ar2315_dev_offset(dev);
}
phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr)
{
return dma_addr - ar2315_dev_offset(dev);
}

4
arch/mips/pci/pci-xtalk-bridge.c
View File

@ -25,7 +25,7 @@
/*
* Common phys<->dma mapping for platforms using pci xtalk bridge
*/
dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct bridge_controller *bc = BRIDGE_CONTROLLER(pdev->bus);
@ -33,7 +33,7 @@ dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
return bc->baddr + paddr;
}
phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr)
{
return dma_addr & ~(0xffUL << 56);
}

4
arch/mips/sgi-ip32/ip32-dma.c
View File

@ -18,7 +18,7 @@
#define RAM_OFFSET_MASK 0x3fffffffUL
dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
dma_addr_t dma_addr = paddr & RAM_OFFSET_MASK;
@ -27,7 +27,7 @@ dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
return dma_addr;
}
phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr)
{
phys_addr_t paddr = dma_addr & RAM_OFFSET_MASK;

2
arch/nds32/kernel/dma.c
View File

@ -3,7 +3,7 @@
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/cache.h>
#include <linux/highmem.h>
#include <asm/cacheflush.h>

2
arch/openrisc/kernel/dma.c
View File

@ -13,7 +13,7 @@
* DMA mapping callbacks...
*/
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/pagewalk.h>
#include <asm/cpuinfo.h>

1
arch/parisc/Kconfig
View File

@ -195,7 +195,6 @@ config PA11
depends on PA7000 || PA7100LC || PA7200 || PA7300LC
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select DMA_NONCOHERENT_CACHE_SYNC
config PREFETCH
def_bool y

1
arch/parisc/kernel/drivers.c
View File

@ -30,6 +30,7 @@
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/export.h>
#include <linux/dma-map-ops.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/pdc.h>

8
arch/parisc/kernel/pci-dma.c
View File

@ -26,7 +26,7 @@
#include <linux/string.h>
#include <linux/types.h>
#include <linux/dma-direct.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <asm/cacheflush.h>
#include <asm/dma.h> /* for DMA_CHUNK_SIZE */
@ -454,9 +454,3 @@ void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
{
flush_kernel_dcache_range((unsigned long)phys_to_virt(paddr), size);
}
void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)
{
flush_kernel_dcache_range((unsigned long)vaddr, size);
}

4
arch/powerpc/include/asm/dma-direct.h
View File

@ -2,12 +2,12 @@
#ifndef ASM_POWERPC_DMA_DIRECT_H
#define ASM_POWERPC_DMA_DIRECT_H 1
static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
return paddr + dev->archdata.dma_offset;
}
static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
return daddr - dev->archdata.dma_offset;
}

2
arch/powerpc/include/asm/iommu.h
View File

@ -12,7 +12,7 @@
#include <linux/compiler.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/bitops.h>
#include <asm/machdep.h>
#include <asm/types.h>

2
arch/powerpc/include/asm/pci.h
View File

@ -9,7 +9,7 @@
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/scatterlist.h>
#include <asm/machdep.h>

2
arch/powerpc/kernel/dma-iommu.c
View File

@ -138,4 +138,6 @@ const struct dma_map_ops dma_iommu_ops = {
.get_required_mask = dma_iommu_get_required_mask,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
.alloc_pages = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};

11
arch/powerpc/kernel/iommu.c
View File

@ -172,7 +172,6 @@ static unsigned long iommu_range_alloc(struct device *dev,
int largealloc = npages > 15;
int pass = 0;
unsigned long align_mask;
unsigned long boundary_size;
unsigned long flags;
unsigned int pool_nr;
struct iommu_pool *pool;
@ -236,15 +235,9 @@ again:
}
}
if (dev)
boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
1 << tbl->it_page_shift);
else
boundary_size = ALIGN(1UL << 32, 1 << tbl->it_page_shift);
/* 4GB boundary for iseries_hv_alloc and iseries_hv_map */
n = iommu_area_alloc(tbl->it_map, limit, start, npages, tbl->it_offset,
boundary_size >> tbl->it_page_shift, align_mask);
dma_get_seg_boundary_nr_pages(dev, tbl->it_page_shift),
align_mask);
if (n == -1) {
if (likely(pass == 0)) {
/* First try the pool from the start */

2
arch/powerpc/mm/dma-noncoherent.c
View File

@ -11,7 +11,7 @@
#include <linux/types.h>
#include <linux/highmem.h>
#include <linux/dma-direct.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <asm/tlbflush.h>
#include <asm/dma.h>

6
arch/powerpc/platforms/ps3/system-bus.c
View File

@ -9,7 +9,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/err.h>
#include <linux/slab.h>
@ -696,6 +696,8 @@ static const struct dma_map_ops ps3_sb_dma_ops = {
.unmap_page = ps3_unmap_page,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
.alloc_pages = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
static const struct dma_map_ops ps3_ioc0_dma_ops = {
@ -708,6 +710,8 @@ static const struct dma_map_ops ps3_ioc0_dma_ops = {
.unmap_page = ps3_unmap_page,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
.alloc_pages = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
/**

2
arch/powerpc/platforms/pseries/ibmebus.c
View File

@ -40,7 +40,7 @@
#include <linux/export.h>
#include <linux/console.h>
#include <linux/kobject.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/slab.h>

4
arch/powerpc/platforms/pseries/vio.c
View File

@ -20,7 +20,7 @@
#include <linux/console.h>
#include <linux/export.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/kobject.h>
#include <asm/iommu.h>
@ -608,6 +608,8 @@ static const struct dma_map_ops vio_dma_mapping_ops = {
.get_required_mask = dma_iommu_get_required_mask,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
.alloc_pages = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
/**

2
arch/s390/kernel/setup.c
View File

@ -37,7 +37,7 @@
#include <linux/root_dev.h>
#include <linux/console.h>
#include <linux/kernel_stat.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/device.h>
#include <linux/notifier.h>
#include <linux/pfn.h>

10
arch/s390/pci/pci_dma.c
View File

@ -10,7 +10,7 @@
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/iommu-helper.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/vmalloc.h>
#include <linux/pci.h>
#include <asm/pci_dma.h>
@ -261,13 +261,11 @@ static unsigned long __dma_alloc_iommu(struct device *dev,
unsigned long start, int size)
{
struct zpci_dev *zdev = to_zpci(to_pci_dev(dev));
unsigned long boundary_size;
boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
PAGE_SIZE) >> PAGE_SHIFT;
return iommu_area_alloc(zdev->iommu_bitmap, zdev->iommu_pages,
start, size, zdev->start_dma >> PAGE_SHIFT,
boundary_size, 0);
dma_get_seg_boundary_nr_pages(dev, PAGE_SHIFT),
0);
}
static dma_addr_t dma_alloc_address(struct device *dev, int size)
@ -670,6 +668,8 @@ const struct dma_map_ops s390_pci_dma_ops = {
.unmap_page = s390_dma_unmap_pages,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
.alloc_pages = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
/* dma_supported is unconditionally true without a callback */
};
EXPORT_SYMBOL_GPL(s390_pci_dma_ops);

1
arch/sh/boards/mach-ap325rxa/setup.c
View File

@ -13,6 +13,7 @@
#include <cpu/sh7723.h>
#include <linux/dma-map-ops.h>
#include <linux/clkdev.h>
#include <linux/delay.h>
#include <linux/device.h>

1
arch/sh/boards/mach-ecovec24/setup.c
View File

@ -36,6 +36,7 @@
#include <linux/usb/r8a66597.h>
#include <linux/usb/renesas_usbhs.h>
#include <linux/videodev2.h>
#include <linux/dma-map-ops.h>
#include <media/drv-intf/renesas-ceu.h>
#include <media/i2c/mt9t112.h>

2
arch/sh/boards/mach-kfr2r09/setup.c
View File

@ -14,7 +14,6 @@
#include <linux/clkdev.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/i2c.h>
@ -33,6 +32,7 @@
#include <linux/sh_intc.h>
#include <linux/usb/r8a66597.h>
#include <linux/videodev2.h>
#include <linux/dma-map-ops.h>
#include <mach/kfr2r09.h>

2
arch/sh/boards/mach-migor/setup.c
View File

@ -5,7 +5,7 @@
* Copyright (C) 2008 Magnus Damm
*/
#include <linux/clkdev.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>

1
arch/sh/boards/mach-se/7724/setup.c
View File

@ -32,6 +32,7 @@
#include <linux/smc91x.h>
#include <linux/usb/r8a66597.h>
#include <linux/videodev2.h>
#include <linux/dma-map-ops.h>
#include <mach-se/mach/se7724.h>
#include <media/drv-intf/renesas-ceu.h>

2
arch/sh/drivers/pci/fixups-dreamcast.c
View File

@ -19,7 +19,7 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <asm/io.h>
#include <asm/irq.h>

1
arch/sh/drivers/pci/pci.c
View File

@ -13,7 +13,6 @@
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/dma-debug.h>
#include <linux/io.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>

9
arch/sh/drivers/pci/pcie-sh7786.c
View File

@ -12,6 +12,7 @@
#include <linux/io.h>
#include <linux/async.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/sh_clk.h>
@ -31,6 +32,8 @@ struct sh7786_pcie_port {
static struct sh7786_pcie_port *sh7786_pcie_ports;
static unsigned int nr_ports;
static unsigned long dma_pfn_offset;
size_t memsize;
u64 memstart;
static struct sh7786_pcie_hwops {
int (*core_init)(void);
@ -301,7 +304,6 @@ static int __init pcie_init(struct sh7786_pcie_port *port)
struct pci_channel *chan = port->hose;
unsigned int data;
phys_addr_t memstart, memend;
size_t memsize;
int ret, i, win;
/* Begin initialization */
@ -368,8 +370,6 @@ static int __init pcie_init(struct sh7786_pcie_port *port)
memstart = ALIGN_DOWN(memstart, memsize);
memsize = roundup_pow_of_two(memend - memstart);
dma_pfn_offset = memstart >> PAGE_SHIFT;
/*
* If there's more than 512MB of memory, we need to roll over to
* LAR1/LAMR1.
@ -487,7 +487,8 @@ int pcibios_map_platform_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
void pcibios_bus_add_device(struct pci_dev *pdev)
{
pdev->dev.dma_pfn_offset = dma_pfn_offset;
dma_direct_set_offset(&pdev->dev, __pa(memory_start),
__pa(memory_start) - memstart, memsize);
}
static int __init sh7786_pcie_core_init(void)

2
arch/sh/kernel/dma-coherent.c
View File

@ -3,7 +3,7 @@
* Copyright (C) 2004 - 2007 Paul Mundt
*/
#include <linux/mm.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <asm/cacheflush.h>
#include <asm/addrspace.h>

10
arch/sparc/kernel/iommu-common.c
View File

@ -166,13 +166,6 @@ unsigned long iommu_tbl_range_alloc(struct device *dev,
}
}
if (dev)
boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
1 << iommu->table_shift);
else
boundary_size = ALIGN(1ULL << 32, 1 << iommu->table_shift);
boundary_size = boundary_size >> iommu->table_shift;
/*
* if the skip_span_boundary_check had been set during init, we set
* things up so that iommu_is_span_boundary() merely checks if the
@ -181,6 +174,9 @@ unsigned long iommu_tbl_range_alloc(struct device *dev,
if ((iommu->flags & IOMMU_NO_SPAN_BOUND) != 0) {
shift = 0;
boundary_size = iommu->poolsize * iommu->nr_pools;
} else {
boundary_size = dma_get_seg_boundary_nr_pages(dev,
iommu->table_shift);
}
n = iommu_area_alloc(iommu->map, limit, start, npages, shift,
boundary_size, align_mask);

5
arch/sparc/kernel/iommu.c
View File

@ -10,7 +10,7 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/errno.h>
#include <linux/iommu-helper.h>
#include <linux/bitmap.h>
@ -472,8 +472,7 @@ static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist,
outs->dma_length = 0;
max_seg_size = dma_get_max_seg_size(dev);
seg_boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
IO_PAGE_SIZE) >> IO_PAGE_SHIFT;
seg_boundary_size = dma_get_seg_boundary_nr_pages(dev, IO_PAGE_SHIFT);
base_shift = iommu->tbl.table_map_base >> IO_PAGE_SHIFT;
for_each_sg(sglist, s, nelems, i) {
unsigned long paddr, npages, entry, out_entry = 0, slen;

2
arch/sparc/kernel/ioport.c
View File

@ -38,7 +38,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/scatterlist.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/of_device.h>
#include <asm/io.h>

4
arch/sparc/kernel/pci_sun4v.c
View File

@ -16,6 +16,7 @@
#include <linux/export.h>
#include <linux/log2.h>
#include <linux/of_device.h>
#include <linux/dma-map-ops.h>
#include <asm/iommu-common.h>
#include <asm/iommu.h>
@ -508,8 +509,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist,
iommu_batch_start(dev, prot, ~0UL);
max_seg_size = dma_get_max_seg_size(dev);
seg_boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
IO_PAGE_SIZE) >> IO_PAGE_SHIFT;
seg_boundary_size = dma_get_seg_boundary_nr_pages(dev, IO_PAGE_SHIFT);
mask = *dev->dma_mask;
if (!iommu_use_atu(iommu, mask))

2
arch/sparc/mm/io-unit.c
View File

@ -11,7 +11,7 @@
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/bitops.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/of.h>
#include <linux/of_device.h>

2
arch/sparc/mm/iommu.c
View File

@ -12,7 +12,7 @@
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/of.h>
#include <linux/of_device.h>

2
arch/x86/include/asm/dma-mapping.h
View File

@ -8,10 +8,8 @@
*/
#include <linux/scatterlist.h>
#include <linux/dma-debug.h>
#include <asm/io.h>
#include <asm/swiotlb.h>
#include <linux/dma-contiguous.h>
extern int iommu_merge;
extern int panic_on_overflow;

12
arch/x86/kernel/amd_gart_64.c
View File

@ -32,6 +32,7 @@
#include <linux/gfp.h>
#include <linux/atomic.h>
#include <linux/dma-direct.h>
#include <linux/dma-map-ops.h>
#include <asm/mtrr.h>
#include <asm/proto.h>
#include <asm/iommu.h>
@ -96,8 +97,7 @@ static unsigned long alloc_iommu(struct device *dev, int size,
base_index = ALIGN(iommu_bus_base & dma_get_seg_boundary(dev),
PAGE_SIZE) >> PAGE_SHIFT;
boundary_size = ALIGN((u64)dma_get_seg_boundary(dev) + 1,
PAGE_SIZE) >> PAGE_SHIFT;
boundary_size = dma_get_seg_boundary_nr_pages(dev, PAGE_SHIFT);
spin_lock_irqsave(&iommu_bitmap_lock, flags);
offset = iommu_area_alloc(iommu_gart_bitmap, iommu_pages, next_bit,
@ -468,7 +468,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
{
void *vaddr;
vaddr = dma_direct_alloc_pages(dev, size, dma_addr, flag, attrs);
vaddr = dma_direct_alloc(dev, size, dma_addr, flag, attrs);
if (!vaddr ||
!force_iommu || dev->coherent_dma_mask <= DMA_BIT_MASK(24))
return vaddr;
@ -480,7 +480,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
goto out_free;
return vaddr;
out_free:
dma_direct_free_pages(dev, size, vaddr, *dma_addr, attrs);
dma_direct_free(dev, size, vaddr, *dma_addr, attrs);
return NULL;
}
@ -490,7 +490,7 @@ gart_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_addr, unsigned long attrs)
{
gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, 0);
dma_direct_free_pages(dev, size, vaddr, dma_addr, attrs);
dma_direct_free(dev, size, vaddr, dma_addr, attrs);
}
static int no_agp;
@ -678,6 +678,8 @@ static const struct dma_map_ops gart_dma_ops = {
.get_sgtable = dma_common_get_sgtable,
.dma_supported = dma_direct_supported,
.get_required_mask = dma_direct_get_required_mask,
.alloc_pages = dma_direct_alloc_pages,
.free_pages = dma_direct_free_pages,
};
static void gart_iommu_shutdown(void)

2
arch/x86/kernel/pci-dma.c
View File

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-map-ops.h>
#include <linux/dma-direct.h>
#include <linux/dma-debug.h>
#include <linux/iommu.h>
#include <linux/dmar.h>
#include <linux/export.h>

2
arch/x86/kernel/setup.c
View File

@ -7,6 +7,7 @@
*/
#include <linux/console.h>
#include <linux/crash_dump.h>
#include <linux/dma-map-ops.h>
#include <linux/dmi.h>
#include <linux/efi.h>
#include <linux/init_ohci1394_dma.h>
@ -20,6 +21,7 @@
#include <linux/tboot.h>
#include <linux/usb/xhci-dbgp.h>
#include <linux/static_call.h>
#include <linux/swiotlb.h>
#include <uapi/linux/mount.h>

6
arch/x86/pci/sta2x11-fixup.c
View File

@ -132,7 +132,7 @@ static void sta2x11_map_ep(struct pci_dev *pdev)
struct sta2x11_instance *instance = sta2x11_pdev_to_instance(pdev);
struct device *dev = &pdev->dev;
u32 amba_base, max_amba_addr;
int i;
int i, ret;
if (!instance)
return;
@ -140,7 +140,9 @@ static void sta2x11_map_ep(struct pci_dev *pdev)
pci_read_config_dword(pdev, AHB_BASE(0), &amba_base);
max_amba_addr = amba_base + STA2X11_AMBA_SIZE - 1;
dev->dma_pfn_offset = PFN_DOWN(-amba_base);
ret = dma_direct_set_offset(dev, 0, amba_base, STA2X11_AMBA_SIZE);
if (ret)
dev_err(dev, "sta2x11: could not set DMA offset\n");
dev->bus_dma_limit = max_amba_addr;
pci_set_consistent_dma_mask(pdev, max_amba_addr);

2
arch/x86/xen/pci-swiotlb-xen.c
View File

@ -2,7 +2,7 @@
/* Glue code to lib/swiotlb-xen.c */
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/pci.h>
#include <xen/swiotlb-xen.h>

3
arch/xtensa/kernel/pci-dma.c
View File

@ -11,8 +11,7 @@
* Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
*/
#include <linux/dma-contiguous.h>
#include <linux/dma-noncoherent.h>
#include <linux/dma-map-ops.h>
#include <linux/dma-direct.h>
#include <linux/gfp.h>
#include <linux/highmem.h>

2
arch/xtensa/mm/init.c
View File

@ -26,7 +26,7 @@
#include <linux/nodemask.h>
#include <linux/mm.h>
#include <linux/of_fdt.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <asm/bootparam.h>
#include <asm/page.h>

6
drivers/acpi/arm64/iort.c
View File

@ -18,6 +18,7 @@
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/dma-map-ops.h>
#define IORT_TYPE_MASK(type) (1 << (type))
#define IORT_MSI_TYPE (1 << ACPI_IORT_NODE_ITS_GROUP)
@ -1178,8 +1179,9 @@ void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size)
*dma_addr = dmaaddr;
*dma_size = size;
dev->dma_pfn_offset = PFN_DOWN(offset);
dev_dbg(dev, "dma_pfn_offset(%#08llx)\n", offset);
ret = dma_direct_set_offset(dev, dmaaddr + offset, dmaaddr, size);
dev_dbg(dev, "dma_offset(%#08llx)%s\n", offset, ret ? " failed!" : "");
}
static void __init acpi_iort_register_irq(int hwirq, const char *name,

2
drivers/acpi/scan.c
View File

@ -13,7 +13,7 @@
#include <linux/kthread.h>
#include <linux/dmi.h>
#include <linux/nls.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/platform_data/x86/apple.h>
#include <linux/pgtable.h>

2
drivers/base/core.c
View File

@ -1798,6 +1798,8 @@ static void device_release(struct kobject *kobj)
*/
devres_release_all(dev);
kfree(dev->dma_range_map);
if (dev->release)
dev->release(dev);
else if (dev->type && dev->type->release)

2
drivers/base/dd.c
View File

@ -19,7 +19,7 @@
#include <linux/debugfs.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kthread.h>

2
drivers/dma-buf/heaps/cma_heap.c
View File

@ -10,7 +10,7 @@
#include <linux/device.h>
#include <linux/dma-buf.h>
#include <linux/dma-heap.h>
#include <linux/dma-contiguous.h>
#include <linux/dma-map-ops.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/highmem.h>

26
drivers/firewire/ohci.c
View File

@ -674,17 +674,16 @@ static void ar_context_link_page(struct ar_context *ctx, unsigned int index)
static void ar_context_release(struct ar_context *ctx)
{
struct device *dev = ctx->ohci->card.device;
unsigned int i;
vunmap(ctx->buffer);
for (i = 0; i < AR_BUFFERS; i++)
if (ctx->pages[i]) {
dma_unmap_page(ctx->ohci->card.device,
ar_buffer_bus(ctx, i),
PAGE_SIZE, DMA_FROM_DEVICE);
__free_page(ctx->pages[i]);
}
for (i = 0; i < AR_BUFFERS; i++) {
if (ctx->pages[i])
dma_free_pages(dev, PAGE_SIZE, ctx->pages[i],
ar_buffer_bus(ctx, i), DMA_FROM_DEVICE);
}
}
static void ar_context_abort(struct ar_context *ctx, const char *error_msg)
@ -970,6 +969,7 @@ error:
static int ar_context_init(struct ar_context *ctx, struct fw_ohci *ohci,
unsigned int descriptors_offset, u32 regs)
{
struct device *dev = ohci->card.device;
unsigned int i;
dma_addr_t dma_addr;
struct page *pages[AR_BUFFERS + AR_WRAPAROUND_PAGES];
@ -980,17 +980,13 @@ static int ar_context_init(struct ar_context *ctx, struct fw_ohci *ohci,
tasklet_init(&ctx->tasklet, ar_context_tasklet, (unsigned long)ctx);
for (i = 0; i < AR_BUFFERS; i++) {
ctx->pages[i] = alloc_page(GFP_KERNEL | GFP_DMA32);
ctx->pages[i] = dma_alloc_pages(dev, PAGE_SIZE, &dma_addr,
DMA_FROM_DEVICE, GFP_KERNEL);
if (!ctx->pages[i])
goto out_of_memory;
dma_addr = dma_map_page(ohci->card.device, ctx->pages[i],
0, PAGE_SIZE, DMA_FROM_DEVICE);
if (dma_mapping_error(ohci->card.device, dma_addr)) {
__free_page(ctx->pages[i]);
ctx->pages[i] = NULL;
goto out_of_memory;
}
set_page_private(ctx->pages[i], dma_addr);
dma_sync_single_for_device(dev, dma_addr, PAGE_SIZE,
DMA_FROM_DEVICE);
}
for (i = 0; i < AR_BUFFERS; i++)

2
drivers/gpu/drm/exynos/exynos_drm_dma.c
View File

@ -5,7 +5,7 @@
// Author: Andrzej Hajda <a.hajda@samsung.com>
#include <linux/dma-iommu.h>
#include <linux/dma-mapping.h>
#include <linux/dma-map-ops.h>
#include <linux/iommu.h>
#include <linux/platform_device.h>

2
drivers/gpu/drm/exynos/exynos_drm_gem.c
View File

@ -42,8 +42,6 @@ static int exynos_drm_alloc_buf(struct exynos_drm_gem *exynos_gem, bool kvmap)
if (exynos_gem->flags & EXYNOS_BO_WC ||
!(exynos_gem->flags & EXYNOS_BO_CACHABLE))
attr |= DMA_ATTR_WRITE_COMBINE;
else
attr |= DMA_ATTR_NON_CONSISTENT;
/* FBDev emulation requires kernel mapping */
if (!kvmap)

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