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OpenCloudOS-Kernel/include/asm-arm/pci.h

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#ifndef ASMARM_PCI_H
#define ASMARM_PCI_H
#ifdef __KERNEL__
#include <asm-generic/pci-dma-compat.h>
#include <asm/hardware.h> /* for PCIBIOS_MIN_* */
#define pcibios_scan_all_fns(a, b) 0
static inline void pcibios_set_master(struct pci_dev *dev)
{
/* No special bus mastering setup handling */
}
[ACPI] PNPACPI vs sound IRQ http://bugme.osdl.org/show_bug.cgi?id=4016 Written-by: David Shaohua Li <shaohua.li@intel.com> Acked-by: Adam Belay <abelay@novell.com> Signed-off-by: Len Brown <len.brown@intel.com>
2005-04-01 13:07:31 +08:00
static inline void pcibios_penalize_isa_irq(int irq, int active)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
/* We don't do dynamic PCI IRQ allocation */
}
/*
* The PCI address space does equal the physical memory address space.
* The networking and block device layers use this boolean for bounce
* buffer decisions.
*/
#define PCI_DMA_BUS_IS_PHYS (0)
/*
* We don't support DAC DMA cycles.
*/
#define pci_dac_dma_supported(pci_dev, mask) (0)
/*
* Whether pci_unmap_{single,page} is a nop depends upon the
* configuration.
*/
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME;
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME;
#define pci_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL))
#define pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL))
[PATCH] PCI: fix up errors after dma bursting patch and CONFIG_PCI=n With CONFIG_PCI=n: In file included from include/linux/pci.h:917, from lib/iomap.c:6: include/asm/pci.h:104: warning: `enum pci_dma_burst_strategy' declared inside parameter list include/asm/pci.h:104: warning: its scope is only this definition or declaration, which is probably not what you want. include/asm/pci.h: In function `pci_dma_burst_advice': include/asm/pci.h:106: dereferencing pointer to incomplete type include/asm/pci.h:106: `PCI_DMA_BURST_INFINITY' undeclared (first use in this function) include/asm/pci.h:106: (Each undeclared identifier is reported only once include/asm/pci.h:106: for each function it appears in.) make[1]: *** [lib/iomap.o] Error 1 Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-07 14:07:46 +08:00
#ifdef CONFIG_PCI
[PATCH] PCI: DMA bursting advice After seeing, at best, "guesses" as to the following kind of information in several drivers, I decided that we really need a way for platforms to specifically give advice in this area for what works best with their PCI controller implementation. Basically, this new interface gives DMA bursting advice on PCI. There are three forms of the advice: 1) Burst as much as possible, it is not necessary to end bursts on some particular boundary for best performance. 2) Burst on some byte count multiple. A DMA burst to some multiple of number of bytes may be done, but it is important to end the burst on an exact multiple for best performance. The best example of this I am aware of are the PPC64 PCI controllers, where if you end a burst mid-cacheline then chip has to refetch the data and the IOMMU translations which hurts performance a lot. 3) Burst on a single byte count multiple. Bursts shall end exactly on the next multiple boundary for best performance. Sparc64 and Alpha's PCI controllers operate this way. They disconnect any device which tries to burst across a cacheline boundary. Actually, newer sparc64 PCI controllers do not have this behavior. That is why the "pdev" is passed into the interface, so I can add code later to check which PCI controller the system is using and give advice accordingly. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-03 03:55:50 +08:00
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
enum pci_dma_burst_strategy *strat,
unsigned long *strategy_parameter)
{
*strat = PCI_DMA_BURST_INFINITY;
*strategy_parameter = ~0UL;
}
[PATCH] PCI: fix up errors after dma bursting patch and CONFIG_PCI=n With CONFIG_PCI=n: In file included from include/linux/pci.h:917, from lib/iomap.c:6: include/asm/pci.h:104: warning: `enum pci_dma_burst_strategy' declared inside parameter list include/asm/pci.h:104: warning: its scope is only this definition or declaration, which is probably not what you want. include/asm/pci.h: In function `pci_dma_burst_advice': include/asm/pci.h:106: dereferencing pointer to incomplete type include/asm/pci.h:106: `PCI_DMA_BURST_INFINITY' undeclared (first use in this function) include/asm/pci.h:106: (Each undeclared identifier is reported only once include/asm/pci.h:106: for each function it appears in.) make[1]: *** [lib/iomap.o] Error 1 Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-07 14:07:46 +08:00
#endif
[PATCH] PCI: DMA bursting advice After seeing, at best, "guesses" as to the following kind of information in several drivers, I decided that we really need a way for platforms to specifically give advice in this area for what works best with their PCI controller implementation. Basically, this new interface gives DMA bursting advice on PCI. There are three forms of the advice: 1) Burst as much as possible, it is not necessary to end bursts on some particular boundary for best performance. 2) Burst on some byte count multiple. A DMA burst to some multiple of number of bytes may be done, but it is important to end the burst on an exact multiple for best performance. The best example of this I am aware of are the PPC64 PCI controllers, where if you end a burst mid-cacheline then chip has to refetch the data and the IOMMU translations which hurts performance a lot. 3) Burst on a single byte count multiple. Bursts shall end exactly on the next multiple boundary for best performance. Sparc64 and Alpha's PCI controllers operate this way. They disconnect any device which tries to burst across a cacheline boundary. Actually, newer sparc64 PCI controllers do not have this behavior. That is why the "pdev" is passed into the interface, so I can add code later to check which PCI controller the system is using and give advice accordingly. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-03 03:55:50 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#define HAVE_PCI_MMAP
extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine);
extern void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res);
[PATCH] pci and yenta: pcibios_bus_to_resource In yenta_socket, we default to using the resource setting of the CardBus bridge. However, this is a PCI-bus-centric view of resources and thus needs to be converted to generic resources first. Therefore, add a call to pcibios_bus_to_resource() call in between. This function is a mere wrapper on x86 and friends, however on some others it already exists, is added in this patch (alpha, arm, ppc, ppc64) or still needs to be provided (parisc -- where is its pcibios_resource_to_bus() ?). Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-05 09:06:21 +08:00
extern void
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region);
[PATCH] Make sparc64 use setup-res.c There were three changes necessary in order to allow sparc64 to use setup-res.c: 1) Sparc64 roots the PCI I/O and MEM address space using parent resources contained in the PCI controller structure. I'm actually surprised no other platforms do this, especially ones like Alpha and PPC{,64}. These resources get linked into the iomem/ioport tree when PCI controllers are probed. So the hierarchy looks like this: iomem --| PCI controller 1 MEM space --| device 1 device 2 etc. PCI controller 2 MEM space --| ... ioport --| PCI controller 1 IO space --| ... PCI controller 2 IO space --| ... You get the idea. The drivers/pci/setup-res.c code allocates using plain iomem_space and ioport_space as the root, so that wouldn't work with the above setup. So I added a pcibios_select_root() that is used to handle this. It uses the PCI controller struct's io_space and mem_space on sparc64, and io{port,mem}_resource on every other platform to keep current behavior. 2) quirk_io_region() is buggy. It takes in raw BUS view addresses and tries to use them as a PCI resource. pci_claim_resource() expects the resource to be fully formed when it gets called. The sparc64 implementation would do the translation but that's absolutely wrong, because if the same resource gets released then re-claimed we'll adjust things twice. So I fixed up quirk_io_region() to do the proper pcibios_bus_to_resource() conversion before passing it on to pci_claim_resource(). 3) I was mistakedly __init'ing the function methods the PCI controller drivers provide on sparc64 to implement some parts of these routines. This was, of course, easy to fix. So we end up with the following, and that nasty SPARC64 makefile ifdef in drivers/pci/Makefile is finally zapped. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-08-09 04:19:08 +08:00
static inline struct resource *
pcibios_select_root(struct pci_dev *pdev, struct resource *res)
{
struct resource *root = NULL;
if (res->flags & IORESOURCE_IO)
root = &ioport_resource;
if (res->flags & IORESOURCE_MEM)
root = &iomem_resource;
return root;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static inline void pcibios_add_platform_entries(struct pci_dev *dev)
{
}
#endif /* __KERNEL__ */
#endif