diff options
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/include/asm/Kbuild | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/io.h | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/pci.h | 42 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/uaccess.h | 6 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/cpuinfo.c | 2 | ||||
| -rw-r--r-- | arch/microblaze/kernel/dma.c | 1 | ||||
| -rw-r--r-- | arch/microblaze/kernel/kgdb.c | 2 | ||||
| -rw-r--r-- | arch/microblaze/mm/fault.c | 8 | ||||
| -rw-r--r-- | arch/microblaze/mm/highmem.c | 4 |
9 files changed, 18 insertions, 51 deletions
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild index ab564a6db..2f222f355 100644 --- a/arch/microblaze/include/asm/Kbuild +++ b/arch/microblaze/include/asm/Kbuild @@ -6,7 +6,7 @@ generic-y += device.h generic-y += exec.h generic-y += irq_work.h generic-y += mcs_spinlock.h +generic-y += mm-arch-hooks.h generic-y += preempt.h -generic-y += scatterlist.h generic-y += syscalls.h generic-y += trace_clock.h diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h index 940f5fc1d..39b6315db 100644 --- a/arch/microblaze/include/asm/io.h +++ b/arch/microblaze/include/asm/io.h @@ -39,10 +39,10 @@ extern resource_size_t isa_mem_base; extern void iounmap(void __iomem *addr); extern void __iomem *ioremap(phys_addr_t address, unsigned long size); -#define ioremap_writethrough(addr, size) ioremap((addr), (size)) #define ioremap_nocache(addr, size) ioremap((addr), (size)) #define ioremap_fullcache(addr, size) ioremap((addr), (size)) #define ioremap_wc(addr, size) ioremap((addr), (size)) +#define ioremap_wt(addr, size) ioremap((addr), (size)) #endif /* CONFIG_MMU */ diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h index 468aca8ce..dc9eb6657 100644 --- a/arch/microblaze/include/asm/pci.h +++ b/arch/microblaze/include/asm/pci.h @@ -16,8 +16,8 @@ #include <linux/string.h> #include <linux/dma-mapping.h> #include <linux/pci.h> +#include <linux/scatterlist.h> -#include <asm/scatterlist.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/pci-bridge.h> @@ -27,8 +27,6 @@ #define PCIBIOS_MIN_IO 0x1000 #define PCIBIOS_MIN_MEM 0x10000000 -struct pci_dev; - /* Values for the `which' argument to sys_pciconfig_iobase syscall. */ #define IOBASE_BRIDGE_NUMBER 0 #define IOBASE_MEMORY 1 @@ -44,16 +42,6 @@ struct pci_dev; */ #define pcibios_assign_all_busses() 0 -#ifdef CONFIG_PCI -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 - extern int pci_domain_nr(struct pci_bus *bus); /* Decide whether to display the domain number in /proc */ @@ -83,40 +71,12 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus, */ #define PCI_DMA_BUS_IS_PHYS (1) -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; -} - extern void pcibios_claim_one_bus(struct pci_bus *b); extern void pcibios_finish_adding_to_bus(struct pci_bus *bus); extern void pcibios_resource_survey(void); -extern struct pci_controller *init_phb_dynamic(struct device_node *dn); -extern int remove_phb_dynamic(struct pci_controller *phb); - -extern struct pci_dev *of_create_pci_dev(struct device_node *node, - struct pci_bus *bus, int devfn); - -extern void of_scan_pci_bridge(struct device_node *node, - struct pci_dev *dev); - -extern void of_scan_bus(struct device_node *node, struct pci_bus *bus); -extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus); - -extern int pci_bus_find_capability(struct pci_bus *bus, - unsigned int devfn, int cap); - struct file; extern pgprot_t pci_phys_mem_access_prot(struct file *file, unsigned long pfn, diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index 62942fd12..331b0d35f 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -178,7 +178,8 @@ extern long __user_bad(void); * @x: Variable to store result. * @ptr: Source address, in user space. * - * Context: User context only. This function may sleep. + * Context: User context only. This function may sleep if pagefaults are + * enabled. * * This macro copies a single simple variable from user space to kernel * space. It supports simple types like char and int, but not larger @@ -290,7 +291,8 @@ extern long __user_bad(void); * @x: Value to copy to user space. * @ptr: Destination address, in user space. * - * Context: User context only. This function may sleep. + * Context: User context only. This function may sleep if pagefaults are + * enabled. * * This macro copies a single simple value from kernel space to user * space. It supports simple types like char and int, but not larger diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c index d1dd6e83d..b70bb538f 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo.c +++ b/arch/microblaze/kernel/cpu/cpuinfo.c @@ -47,6 +47,8 @@ const struct cpu_ver_key cpu_ver_lookup[] = { {"9.1", 0x1d}, {"9.2", 0x1f}, {"9.3", 0x20}, + {"9.4", 0x21}, + {"9.5", 0x22}, {NULL, 0}, }; diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c index ed7ba8a11..bf4dec229 100644 --- a/arch/microblaze/kernel/dma.c +++ b/arch/microblaze/kernel/dma.c @@ -154,6 +154,7 @@ dma_direct_sync_sg_for_device(struct device *dev, __dma_sync(sg->dma_address, sg->length, direction); } +static int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t handle, size_t size, struct dma_attrs *attrs) diff --git a/arch/microblaze/kernel/kgdb.c b/arch/microblaze/kernel/kgdb.c index 8736af580..6366f69d1 100644 --- a/arch/microblaze/kernel/kgdb.c +++ b/arch/microblaze/kernel/kgdb.c @@ -32,7 +32,7 @@ #define GDB_RTLBHI 56 /* keep pvr separately because it is unchangeble */ -struct pvr_s pvr; +static struct pvr_s pvr; void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) { diff --git a/arch/microblaze/mm/fault.c b/arch/microblaze/mm/fault.c index d46a5ebb7..177dfc003 100644 --- a/arch/microblaze/mm/fault.c +++ b/arch/microblaze/mm/fault.c @@ -107,14 +107,14 @@ void do_page_fault(struct pt_regs *regs, unsigned long address, if ((error_code & 0x13) == 0x13 || (error_code & 0x11) == 0x11) is_write = 0; - if (unlikely(in_atomic() || !mm)) { + if (unlikely(faulthandler_disabled() || !mm)) { if (kernel_mode(regs)) goto bad_area_nosemaphore; - /* in_atomic() in user mode is really bad, + /* faulthandler_disabled() in user mode is really bad, as is current->mm == NULL. */ - pr_emerg("Page fault in user mode with in_atomic(), mm = %p\n", - mm); + pr_emerg("Page fault in user mode with faulthandler_disabled(), mm = %p\n", + mm); pr_emerg("r15 = %lx MSR = %lx\n", regs->r15, regs->msr); die("Weird page fault", regs, SIGSEGV); diff --git a/arch/microblaze/mm/highmem.c b/arch/microblaze/mm/highmem.c index 5a92576fa..2fcc5a52d 100644 --- a/arch/microblaze/mm/highmem.c +++ b/arch/microblaze/mm/highmem.c @@ -37,7 +37,7 @@ void *kmap_atomic_prot(struct page *page, pgprot_t prot) unsigned long vaddr; int idx, type; - /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */ + preempt_disable(); pagefault_disable(); if (!PageHighMem(page)) return page_address(page); @@ -63,6 +63,7 @@ void __kunmap_atomic(void *kvaddr) if (vaddr < __fix_to_virt(FIX_KMAP_END)) { pagefault_enable(); + preempt_enable(); return; } @@ -84,5 +85,6 @@ void __kunmap_atomic(void *kvaddr) #endif kmap_atomic_idx_pop(); pagefault_enable(); + preempt_enable(); } EXPORT_SYMBOL(__kunmap_atomic); |