7715a1e887
The early initialization of the pci bus to node mapping leaves all busses with a node id of -1 if it lacks memory affinity. Thus, cpumask_of_pcibus must return all online cpus for such busses. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
155 lines
4.0 KiB
C
155 lines
4.0 KiB
C
#ifndef _ASM_X86_PCI_H
|
|
#define _ASM_X86_PCI_H
|
|
|
|
#include <linux/mm.h> /* for struct page */
|
|
#include <linux/types.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/string.h>
|
|
#include <asm/scatterlist.h>
|
|
#include <asm/io.h>
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
struct pci_sysdata {
|
|
int domain; /* PCI domain */
|
|
int node; /* NUMA node */
|
|
#ifdef CONFIG_X86_64
|
|
void *iommu; /* IOMMU private data */
|
|
#endif
|
|
};
|
|
|
|
extern int pci_routeirq;
|
|
extern int noioapicquirk;
|
|
extern int noioapicreroute;
|
|
|
|
/* scan a bus after allocating a pci_sysdata for it */
|
|
extern struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops,
|
|
int node);
|
|
extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
|
|
|
|
static inline int pci_domain_nr(struct pci_bus *bus)
|
|
{
|
|
struct pci_sysdata *sd = bus->sysdata;
|
|
return sd->domain;
|
|
}
|
|
|
|
static inline int pci_proc_domain(struct pci_bus *bus)
|
|
{
|
|
return pci_domain_nr(bus);
|
|
}
|
|
|
|
|
|
/* Can be used to override the logic in pci_scan_bus for skipping
|
|
already-configured bus numbers - to be used for buggy BIOSes
|
|
or architectures with incomplete PCI setup by the loader */
|
|
|
|
#ifdef CONFIG_PCI
|
|
extern unsigned int pcibios_assign_all_busses(void);
|
|
#else
|
|
#define pcibios_assign_all_busses() 0
|
|
#endif
|
|
|
|
extern unsigned long pci_mem_start;
|
|
#define PCIBIOS_MIN_IO 0x1000
|
|
#define PCIBIOS_MIN_MEM (pci_mem_start)
|
|
|
|
#define PCIBIOS_MIN_CARDBUS_IO 0x4000
|
|
|
|
void pcibios_config_init(void);
|
|
struct pci_bus *pcibios_scan_root(int bus);
|
|
|
|
void pcibios_set_master(struct pci_dev *dev);
|
|
void pcibios_penalize_isa_irq(int irq, int active);
|
|
struct irq_routing_table *pcibios_get_irq_routing_table(void);
|
|
int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
|
|
|
|
|
|
#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);
|
|
|
|
|
|
#ifdef CONFIG_PCI
|
|
extern void early_quirks(void);
|
|
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;
|
|
}
|
|
#else
|
|
static inline void early_quirks(void) { }
|
|
#endif
|
|
|
|
extern void pci_iommu_alloc(void);
|
|
|
|
/* MSI arch hook */
|
|
#define arch_setup_msi_irqs arch_setup_msi_irqs
|
|
|
|
#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
|
|
|
|
#if defined(CONFIG_X86_64) || defined(CONFIG_DMAR) || defined(CONFIG_DMA_API_DEBUG)
|
|
|
|
#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))
|
|
|
|
#else
|
|
|
|
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME[0];
|
|
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) unsigned LEN_NAME[0];
|
|
#define pci_unmap_addr(PTR, ADDR_NAME) sizeof((PTR)->ADDR_NAME)
|
|
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
|
|
do { break; } while (pci_unmap_addr(PTR, ADDR_NAME))
|
|
#define pci_unmap_len(PTR, LEN_NAME) sizeof((PTR)->LEN_NAME)
|
|
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
|
|
do { break; } while (pci_unmap_len(PTR, LEN_NAME))
|
|
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#ifdef CONFIG_X86_64
|
|
#include "pci_64.h"
|
|
#endif
|
|
|
|
/* implement the pci_ DMA API in terms of the generic device dma_ one */
|
|
#include <asm-generic/pci-dma-compat.h>
|
|
|
|
/* generic pci stuff */
|
|
#include <asm-generic/pci.h>
|
|
#define PCIBIOS_MAX_MEM_32 0xffffffff
|
|
|
|
#ifdef CONFIG_NUMA
|
|
/* Returns the node based on pci bus */
|
|
static inline int __pcibus_to_node(const struct pci_bus *bus)
|
|
{
|
|
const struct pci_sysdata *sd = bus->sysdata;
|
|
|
|
return sd->node;
|
|
}
|
|
|
|
static inline const struct cpumask *
|
|
cpumask_of_pcibus(const struct pci_bus *bus)
|
|
{
|
|
int node;
|
|
|
|
node = __pcibus_to_node(bus);
|
|
return (node == -1) ? cpu_online_mask :
|
|
cpumask_of_node(node);
|
|
}
|
|
#endif
|
|
|
|
#endif /* _ASM_X86_PCI_H */
|