diff options
| author |   Mark Maule <maule@sgi.com> | 2005-04-25 11:26:03 -0700 |
|---|---|---|
| committer |   Tony Luck <tony.luck@intel.com> | 2005-04-25 11:26:03 -0700 |
| commit | e955d82543fea76b02aa243b182e782f71bda82c (patch) | |
| tree | 58dc9df5161f47bca69c8dc9c819495f15694352 /arch/ia64/sn/include | |
| parent | [PATCH] fs/aio.c: make some code static (diff) | |
| download | linux-dev-e955d82543fea76b02aa243b182e782f71bda82c.tar.xz linux-dev-e955d82543fea76b02aa243b182e782f71bda82c.zip | |
[IA64-SGI] sn2-pci-dma-abstraction.patch
Provide an abstraction of the altix pci dma runtime layer so that multiple
pci-based bridges can be supported.
Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/sn/include')
| -rw-r--r-- | arch/ia64/sn/include/pci/pcibr_provider.h | 6 | ||||
| -rw-r--r-- | arch/ia64/sn/include/pci/pcibus_provider_defs.h | 12 | ||||
| -rw-r--r-- | arch/ia64/sn/include/pci/pcidev.h | 4 |
3 files changed, 18 insertions, 4 deletions
diff --git a/arch/ia64/sn/include/pci/pcibr_provider.h b/arch/ia64/sn/include/pci/pcibr_provider.h index b1f05ffec70b..1cd291d8badd 100644 --- a/arch/ia64/sn/include/pci/pcibr_provider.h +++ b/arch/ia64/sn/include/pci/pcibr_provider.h @@ -123,9 +123,11 @@ pcibr_lock(struct pcibus_info *pcibus_info) } #define pcibr_unlock(pcibus_info, flag) spin_unlock_irqrestore(&pcibus_info->pbi_lock, flag) +extern int pcibr_init_provider(void); extern void *pcibr_bus_fixup(struct pcibus_bussoft *); -extern uint64_t pcibr_dma_map(struct pcidev_info *, unsigned long, size_t, unsigned int); -extern void pcibr_dma_unmap(struct pcidev_info *, dma_addr_t, int); +extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t); +extern dma_addr_t pcibr_dma_map_consistent(struct pci_dev *, unsigned long, size_t); +extern void pcibr_dma_unmap(struct pci_dev *, dma_addr_t, int); /* * prototypes for the bridge asic register access routines in pcibr_reg.c diff --git a/arch/ia64/sn/include/pci/pcibus_provider_defs.h b/arch/ia64/sn/include/pci/pcibus_provider_defs.h index 07065615bbea..f546b4ece33c 100644 --- a/arch/ia64/sn/include/pci/pcibus_provider_defs.h +++ b/arch/ia64/sn/include/pci/pcibus_provider_defs.h @@ -18,6 +18,8 @@ #define PCIIO_ASIC_TYPE_PIC 2 #define PCIIO_ASIC_TYPE_TIOCP 3 +#define PCIIO_ASIC_MAX_TYPES 4 + /* * Common pciio bus provider data. There should be one of these as the * first field in any pciio based provider soft structure (e.g. pcibr_soft @@ -35,9 +37,15 @@ struct pcibus_bussoft { }; /* - * DMA mapping flags + * SN pci bus indirection */ -#define SN_PCIDMA_CONSISTENT 0x0001 +struct sn_pcibus_provider { + dma_addr_t (*dma_map)(struct pci_dev *, unsigned long, size_t); + dma_addr_t (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t); + void (*dma_unmap)(struct pci_dev *, dma_addr_t, int); + void * (*bus_fixup)(struct pcibus_bussoft *); +}; +extern struct sn_pcibus_provider *sn_pci_provider[]; #endif /* _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H */ diff --git a/arch/ia64/sn/include/pci/pcidev.h b/arch/ia64/sn/include/pci/pcidev.h index 81eb95d3bf47..ed4031d80811 100644 --- a/arch/ia64/sn/include/pci/pcidev.h +++ b/arch/ia64/sn/include/pci/pcidev.h @@ -32,6 +32,9 @@ extern struct sn_irq_info **sn_irq; #define SN_PCIDEV_BUSSOFT(pci_dev) \ (SN_PCIDEV_INFO(pci_dev)->pdi_host_pcidev_info->pdi_pcibus_info) +#define SN_PCIDEV_BUSPROVIDER(pci_dev) \ + (SN_PCIDEV_INFO(pci_dev)->pdi_provider) + #define PCIIO_BUS_NONE 255 /* bus 255 reserved */ #define PCIIO_SLOT_NONE 255 #define PCIIO_FUNC_NONE 255 @@ -46,6 +49,7 @@ struct pcidev_info { struct pci_dev *pdi_linux_pcidev; /* Kernel pci_dev */ struct sn_irq_info *pdi_sn_irq_info; + struct sn_pcibus_provider *pdi_provider; /* sn pci ops */ }; extern void sn_irq_fixup(struct pci_dev *pci_dev, |