diff options
| -rw-r--r-- | include/asm-alpha/pci.h | 17 | ||||
| -rw-r--r-- | include/asm-arm/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-frv/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-i386/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-ia64/pci.h | 17 | ||||
| -rw-r--r-- | include/asm-mips/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-parisc/pci.h | 17 | ||||
| -rw-r--r-- | include/asm-ppc/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-ppc64/pci.h | 17 | ||||
| -rw-r--r-- | include/asm-sh/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-sh64/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-sparc/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-sparc64/pci.h | 17 | ||||
| -rw-r--r-- | include/asm-v850/pci.h | 8 | ||||
| -rw-r--r-- | include/asm-x86_64/pci.h | 8 | ||||
| -rw-r--r-- | include/linux/pci.h | 9 |
16 files changed, 174 insertions, 0 deletions
diff --git a/include/asm-alpha/pci.h b/include/asm-alpha/pci.h index 0c7b57b..6c71dc1 100644 --- a/include/asm-alpha/pci.h +++ b/include/asm-alpha/pci.h @@ -223,6 +223,23 @@ pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, /* Nothing to do. */ } +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + unsigned long cacheline_size; + u8 byte; + + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); + if (byte == 0) + cacheline_size = 1024; + else + cacheline_size = (int) byte * 4; + + *strat = PCI_DMA_BURST_BOUNDARY; + *strategy_parameter = cacheline_size; +} + /* TODO: integrate with include/asm-generic/pci.h ? */ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) { diff --git a/include/asm-arm/pci.h b/include/asm-arm/pci.h index 40ffaef..bc2ec42 100644 --- a/include/asm-arm/pci.h +++ b/include/asm-arm/pci.h @@ -42,6 +42,14 @@ static inline void pcibios_penalize_isa_irq(int irq) #define pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME) #define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL)) +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; +} + #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); diff --git a/include/asm-frv/pci.h b/include/asm-frv/pci.h index a6a4692..1342724 100644 --- a/include/asm-frv/pci.h +++ b/include/asm-frv/pci.h @@ -57,6 +57,14 @@ extern void pci_free_consistent(struct pci_dev *hwdev, size_t size, */ #define PCI_DMA_BUS_IS_PHYS (1) +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; +} + /* * These are pretty much arbitary with the CoMEM implementation. * We have the whole address space to ourselves. diff --git a/include/asm-i386/pci.h b/include/asm-i386/pci.h index fb749b8..bf07b3a 100644 --- a/include/asm-i386/pci.h +++ b/include/asm-i386/pci.h @@ -99,6 +99,14 @@ static inline void pcibios_add_platform_entries(struct pci_dev *dev) { } +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; +} + #endif /* __KERNEL__ */ /* implement the pci_ DMA API in terms of the generic device dma_ one */ diff --git a/include/asm-ia64/pci.h b/include/asm-ia64/pci.h index a8314ee..c9f1ab4 100644 --- a/include/asm-ia64/pci.h +++ b/include/asm-ia64/pci.h @@ -82,6 +82,23 @@ extern int pcibios_prep_mwi (struct pci_dev *); #define sg_dma_len(sg) ((sg)->dma_length) #define sg_dma_address(sg) ((sg)->dma_address) +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + unsigned long cacheline_size; + u8 byte; + + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); + if (byte == 0) + cacheline_size = 1024; + else + cacheline_size = (int) byte * 4; + + *strat = PCI_DMA_BURST_MULTIPLE; + *strategy_parameter = cacheline_size; +} + #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); diff --git a/include/asm-mips/pci.h b/include/asm-mips/pci.h index c9c576b..20b93bf 100644 --- a/include/asm-mips/pci.h +++ b/include/asm-mips/pci.h @@ -130,6 +130,14 @@ extern void pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, extern void pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction); +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; +} + extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, struct resource *res); diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h index 0763c29..f9f5bf9 100644 --- a/include/asm-parisc/pci.h +++ b/include/asm-parisc/pci.h @@ -230,6 +230,23 @@ extern inline void pcibios_register_hba(struct pci_hba_data *x) /* export the pci_ DMA API in terms of the dma_ one */ #include <asm-generic/pci-dma-compat.h> +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + unsigned long cacheline_size; + u8 byte; + + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); + if (byte == 0) + cacheline_size = 1024; + else + cacheline_size = (int) byte * 4; + + *strat = PCI_DMA_BURST_MULTIPLE; + *strategy_parameter = cacheline_size; +} + extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, struct resource *res); diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h index 002e7b3..669e9de 100644 --- a/include/asm-ppc/pci.h +++ b/include/asm-ppc/pci.h @@ -69,6 +69,14 @@ extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr); #define pci_unmap_len(PTR, LEN_NAME) (0) #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) +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; +} + /* * At present there are very few 32-bit PPC machines that can have * memory above the 4GB point, and we don't support that. diff --git a/include/asm-ppc64/pci.h b/include/asm-ppc64/pci.h index 411bf5d..20beb10 100644 --- a/include/asm-ppc64/pci.h +++ b/include/asm-ppc64/pci.h @@ -78,6 +78,23 @@ static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask) return 0; } +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + unsigned long cacheline_size; + u8 byte; + + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); + if (byte == 0) + cacheline_size = 1024; + else + cacheline_size = (int) byte * 4; + + *strat = PCI_DMA_BURST_MULTIPLE; + *strategy_parameter = cacheline_size; +} + extern int pci_domain_nr(struct pci_bus *bus); /* Decide whether to display the domain number in /proc */ diff --git a/include/asm-sh/pci.h b/include/asm-sh/pci.h index 9c3b63d..7237bc6 100644 --- a/include/asm-sh/pci.h +++ b/include/asm-sh/pci.h @@ -96,6 +96,14 @@ static inline void pcibios_penalize_isa_irq(int irq) #define sg_dma_address(sg) (virt_to_bus((sg)->dma_address)) #define sg_dma_len(sg) ((sg)->length) +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; +} + /* Board-specific fixup routines. */ extern void pcibios_fixup(void); extern void pcibios_fixup_irqs(void); diff --git a/include/asm-sh64/pci.h b/include/asm-sh64/pci.h index 8cc14e139..0ac15ab 100644 --- a/include/asm-sh64/pci.h +++ b/include/asm-sh64/pci.h @@ -86,6 +86,14 @@ static inline void pcibios_penalize_isa_irq(int irq) #define sg_dma_address(sg) ((sg)->dma_address) #define sg_dma_len(sg) ((sg)->length) +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; +} + /* Board-specific fixup routines. */ extern void pcibios_fixup(void); extern void pcibios_fixup_irqs(void); diff --git a/include/asm-sparc/pci.h b/include/asm-sparc/pci.h index d200a25..2fd65db 100644 --- a/include/asm-sparc/pci.h +++ b/include/asm-sparc/pci.h @@ -144,6 +144,14 @@ extern inline int pci_dma_supported(struct pci_dev *hwdev, u64 mask) #define pci_dac_dma_supported(dev, mask) (0) +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; +} + static inline void pcibios_add_platform_entries(struct pci_dev *dev) { } diff --git a/include/asm-sparc64/pci.h b/include/asm-sparc64/pci.h index 2a0c85c..4026673 100644 --- a/include/asm-sparc64/pci.h +++ b/include/asm-sparc64/pci.h @@ -220,6 +220,23 @@ static inline int pci_dma_mapping_error(dma_addr_t dma_addr) return (dma_addr == PCI_DMA_ERROR_CODE); } +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + unsigned long cacheline_size; + u8 byte; + + pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); + if (byte == 0) + cacheline_size = 1024; + else + cacheline_size = (int) byte * 4; + + *strat = PCI_DMA_BURST_BOUNDARY; + *strategy_parameter = cacheline_size; +} + /* Return the index of the PCI controller for device PDEV. */ extern int pci_domain_nr(struct pci_bus *bus); diff --git a/include/asm-v850/pci.h b/include/asm-v850/pci.h index e419414..d26eb8d 100644 --- a/include/asm-v850/pci.h +++ b/include/asm-v850/pci.h @@ -81,6 +81,14 @@ extern void pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr, dma_addr_t dma_addr); +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; +} + static inline void pcibios_add_platform_entries(struct pci_dev *dev) { } diff --git a/include/asm-x86_64/pci.h b/include/asm-x86_64/pci.h index 8712520..8461d6a 100644 --- a/include/asm-x86_64/pci.h +++ b/include/asm-x86_64/pci.h @@ -123,6 +123,14 @@ pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, flush_write_buffers(); } +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; +} + #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); diff --git a/include/linux/pci.h b/include/linux/pci.h index cfa1455..9ce4f1b 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -874,6 +874,15 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass #define pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle) #define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr) +enum pci_dma_burst_strategy { + PCI_DMA_BURST_INFINITY, /* make bursts as large as possible, + strategy_parameter is N/A */ + PCI_DMA_BURST_BOUNDARY, /* disconnect at every strategy_parameter + byte boundaries */ + PCI_DMA_BURST_MULTIPLE, /* disconnect at some multiple of + strategy_parameter byte boundaries */ +}; + #if defined(CONFIG_ISA) || defined(CONFIG_EISA) extern struct pci_dev *isa_bridge; #endif |
