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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (21 commits)
  x86/PCI: use dev_printk when possible
  PCI: add D3 power state avoidance quirk
  PCI: fix bogus "'device' may be used uninitialized" warning in pci_slot
  PCI: add an option to allow ASPM enabled forcibly
  PCI: disable ASPM on pre-1.1 PCIe devices
  PCI: disable ASPM per ACPI FADT setting
  PCI MSI: Don't disable MSIs if the mask bit isn't supported
  PCI: handle 64-bit resources better on 32-bit machines
  PCI: rewrite PCI BAR reading code
  PCI: document pci_target_state
  PCI hotplug: fix typo in pcie hotplug output
  x86 gart: replace to_pages macro with iommu_num_pages
  x86, AMD IOMMU: replace to_pages macro with iommu_num_pages
  iommu: add iommu_num_pages helper function
  dma-coherent: add documentation to new interfaces
  Cris: convert to using generic dma-coherent mem allocator
  Sh: use generic per-device coherent dma allocator
  ARM: support generic per-device coherent dma mem
  Generic dma-coherent: fix DMA_MEMORY_EXCLUSIVE
  x86: use generic per-device dma coherent allocator
  ...
This commit is contained in:
Linus Torvalds 2008-07-28 18:14:24 -07:00
commit 1d9b9f6a53
36 changed files with 512 additions and 568 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/acpi/actbl.h
View file

@ -277,6 +277,7 @@ enum acpi_prefered_pm_profiles {
#define BAF_LEGACY_DEVICES 0x0001
#define BAF_8042_KEYBOARD_CONTROLLER 0x0002
#define BAF_MSI_NOT_SUPPORTED 0x0008
#define BAF_PCIE_ASPM_CONTROL 0x0010
#define FADT2_REVISION_ID 3
#define FADT2_MINUS_REVISION_ID 2

2
include/asm-arm/dma-mapping.h
View file

@ -7,6 +7,8 @@
#include <linux/scatterlist.h>
#include <asm-generic/dma-coherent.h>
/*
* DMA-consistent mapping functions. These allocate/free a region of
* uncached, unwrite-buffered mapped memory space for use with DMA

2
include/asm-cris/dma-mapping.h
View file

@ -14,6 +14,8 @@
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
#ifdef CONFIG_PCI
#include <asm-generic/dma-coherent.h>
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag);

32
include/asm-generic/dma-coherent.h Normal file
View file

@ -0,0 +1,32 @@
#ifndef DMA_COHERENT_H
#define DMA_COHERENT_H
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
/*
* These two functions are only for dma allocator.
* Don't use them in device drivers.
*/
int dma_alloc_from_coherent(struct device *dev, ssize_t size,
dma_addr_t *dma_handle, void **ret);
int dma_release_from_coherent(struct device *dev, int order, void *vaddr);
/*
* Standard interface
*/
#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
extern int
dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
dma_addr_t device_addr, size_t size, int flags);
extern void
dma_release_declared_memory(struct device *dev);
extern void *
dma_mark_declared_memory_occupied(struct device *dev,
dma_addr_t device_addr, size_t size);
#else
#define dma_alloc_from_coherent(dev, size, handle, ret) (0)
#define dma_release_from_coherent(dev, order, vaddr) (0)
#endif
#endif

1
include/asm-sh/dma-mapping.h
View file

@ -5,6 +5,7 @@
#include <linux/scatterlist.h>
#include <asm/cacheflush.h>
#include <asm/io.h>
#include <asm-generic/dma-coherent.h>
extern struct bus_type pci_bus_type;

22
include/asm-x86/dma-mapping.h
View file

@ -249,25 +249,5 @@ static inline int dma_get_cache_alignment(void)
#define dma_is_consistent(d, h) (1)
#ifdef CONFIG_X86_32
# define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
struct dma_coherent_mem {
void *virt_base;
u32 device_base;
int size;
int flags;
unsigned long *bitmap;
};
extern int
dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
dma_addr_t device_addr, size_t size, int flags);
extern void
dma_release_declared_memory(struct device *dev);
extern void *
dma_mark_declared_memory_occupied(struct device *dev,
dma_addr_t device_addr, size_t size);
#endif /* CONFIG_X86_32 */
#include <asm-generic/dma-coherent.h>
#endif

1
include/linux/iommu-helper.h
View file

@ -8,3 +8,4 @@ extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
unsigned long align_mask);
extern void iommu_area_free(unsigned long *map, unsigned long start,
unsigned int nr);
extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len);

5
include/linux/pci-aspm.h
View file

@ -27,6 +27,7 @@ extern void pcie_aspm_init_link_state(struct pci_dev *pdev);
extern void pcie_aspm_exit_link_state(struct pci_dev *pdev);
extern void pcie_aspm_pm_state_change(struct pci_dev *pdev);
extern void pci_disable_link_state(struct pci_dev *pdev, int state);
extern void pcie_no_aspm(void);
#else
static inline void pcie_aspm_init_link_state(struct pci_dev *pdev)
{
@ -40,6 +41,10 @@ static inline void pcie_aspm_pm_state_change(struct pci_dev *pdev)
static inline void pci_disable_link_state(struct pci_dev *pdev, int state)
{
}
static inline void pcie_no_aspm(void)
{
}
#endif
#ifdef CONFIG_PCIEASPM_DEBUG /* this depends on CONFIG_PCIEASPM */

2
include/linux/pci.h
View file

@ -124,6 +124,8 @@ enum pci_dev_flags {
* generation too.
*/
PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG = (__force pci_dev_flags_t) 1,
/* Device configuration is irrevocably lost if disabled into D3 */
PCI_DEV_FLAGS_NO_D3 = (__force pci_dev_flags_t) 2,
};
typedef unsigned short __bitwise pci_bus_flags_t;

1
include/linux/pci_regs.h
View file

@ -374,6 +374,7 @@
#define PCI_EXP_DEVCAP_ATN_BUT 0x1000 /* Attention Button Present */
#define PCI_EXP_DEVCAP_ATN_IND 0x2000 /* Attention Indicator Present */
#define PCI_EXP_DEVCAP_PWR_IND 0x4000 /* Power Indicator Present */
#define PCI_EXP_DEVCAP_RBER 0x8000 /* Role-Based Error Reporting */
#define PCI_EXP_DEVCAP_PWR_VAL 0x3fc0000 /* Slot Power Limit Value */
#define PCI_EXP_DEVCAP_PWR_SCL 0xc000000 /* Slot Power Limit Scale */
#define PCI_EXP_DEVCTL 8 /* Device Control */