diff options
Diffstat (limited to 'arch/microblaze')
36 files changed, 353 insertions, 273 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index e446bab2427..74f23a460ba 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -17,6 +17,8 @@ config MICROBLAZE select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW + select GENERIC_PCI_IOMAP + select GENERIC_CPU_DEVICES config SWAP def_bool n diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h index 8fbb0ec1023..3a3e5b88685 100644 --- a/arch/microblaze/include/asm/dma-mapping.h +++ b/arch/microblaze/include/asm/dma-mapping.h @@ -16,7 +16,7 @@ #define _ASM_MICROBLAZE_DMA_MAPPING_H /* - * See Documentation/PCI/PCI-DMA-mapping.txt and + * See Documentation/DMA-API-HOWTO.txt and * Documentation/DMA-API.txt for documentation. */ @@ -28,12 +28,12 @@ #include <linux/dma-attrs.h> #include <asm/io.h> #include <asm-generic/dma-coherent.h> +#include <asm/cacheflush.h> #define DMA_ERROR_CODE (~(dma_addr_t)0x0) #define __dma_alloc_coherent(dev, gfp, size, handle) NULL #define __dma_free_coherent(size, addr) ((void)0) -#define __dma_sync(addr, size, rw) ((void)0) static inline unsigned long device_to_mask(struct device *dev) { @@ -95,6 +95,22 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask) #include <asm-generic/dma-mapping-common.h> +static inline void __dma_sync(unsigned long paddr, + size_t size, enum dma_data_direction direction) +{ + switch (direction) { + case DMA_TO_DEVICE: + case DMA_BIDIRECTIONAL: + flush_dcache_range(paddr, paddr + size); + break; + case DMA_FROM_DEVICE: + invalidate_dcache_range(paddr, paddr + size); + break; + default: + BUG(); + } +} + static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { struct dma_map_ops *ops = get_dma_ops(dev); @@ -135,7 +151,7 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { BUG_ON(direction == DMA_NONE); - __dma_sync(vaddr, size, (int)direction); + __dma_sync(virt_to_phys(vaddr), size, (int)direction); } #endif /* _ASM_MICROBLAZE_DMA_MAPPING_H */ diff --git a/arch/microblaze/include/asm/elf.h b/arch/microblaze/include/asm/elf.h index 098dfdde4b0..834849f59ae 100644 --- a/arch/microblaze/include/asm/elf.h +++ b/arch/microblaze/include/asm/elf.h @@ -16,13 +16,15 @@ * I've snaffled the value from the microblaze binutils source code * /binutils/microblaze/include/elf/microblaze.h */ -#define EM_XILINX_MICROBLAZE 0xbaab -#define ELF_ARCH EM_XILINX_MICROBLAZE +#define EM_MICROBLAZE 189 +#define EM_MICROBLAZE_OLD 0xbaab +#define ELF_ARCH EM_MICROBLAZE /* * This is used to ensure we don't load something for the wrong architecture. */ -#define elf_check_arch(x) ((x)->e_machine == EM_XILINX_MICROBLAZE) +#define elf_check_arch(x) ((x)->e_machine == EM_MICROBLAZE \ + || (x)->e_machine == EM_MICROBLAZE_OLD) /* * These are used to set parameters in the core dumps. diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h index cc54187f3d3..a175132e449 100644 --- a/arch/microblaze/include/asm/irq.h +++ b/arch/microblaze/include/asm/irq.h @@ -9,7 +9,14 @@ #ifndef _ASM_MICROBLAZE_IRQ_H #define _ASM_MICROBLAZE_IRQ_H -#define NR_IRQS 32 + +/* + * Linux IRQ# is currently offset by one to map to the hardware + * irq number. So hardware IRQ0 maps to Linux irq 1. + */ +#define NO_IRQ_OFFSET 1 +#define IRQ_OFFSET NO_IRQ_OFFSET +#define NR_IRQS (32 + IRQ_OFFSET) #include <asm-generic/irq.h> /* This type is the placeholder for a hardware interrupt number. It has to @@ -20,8 +27,6 @@ typedef unsigned long irq_hw_number_t; extern unsigned int nr_irq; -#define NO_IRQ (-1) - struct pt_regs; extern void do_IRQ(struct pt_regs *regs); diff --git a/arch/microblaze/include/asm/memblock.h b/arch/microblaze/include/asm/memblock.h deleted file mode 100644 index 20a8e257c77..00000000000 --- a/arch/microblaze/include/asm/memblock.h +++ /dev/null @@ -1,14 +0,0 @@ -/* - * Copyright (C) 2008 Michal Simek <monstr@monstr.eu> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#ifndef _ASM_MICROBLAZE_MEMBLOCK_H -#define _ASM_MICROBLAZE_MEMBLOCK_H - -#endif /* _ASM_MICROBLAZE_MEMBLOCK_H */ - - diff --git a/arch/microblaze/include/asm/namei.h b/arch/microblaze/include/asm/namei.h deleted file mode 100644 index 61d60b8a07d..00000000000 --- a/arch/microblaze/include/asm/namei.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#ifndef _ASM_MICROBLAZE_NAMEI_H -#define _ASM_MICROBLAZE_NAMEI_H - -#ifdef __KERNEL__ - -/* This dummy routine maybe changed to something useful - * for /usr/gnemul/ emulation stuff. - * Look at asm-sparc/namei.h for details. - */ -#define __emul_prefix() NULL - -#endif /* __KERNEL__ */ - -#endif /* _ASM_MICROBLAZE_NAMEI_H */ diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h index ed9d0f6e2cd..a25e6b5e2ad 100644 --- a/arch/microblaze/include/asm/page.h +++ b/arch/microblaze/include/asm/page.h @@ -174,15 +174,8 @@ extern int page_is_ram(unsigned long pfn); #define virt_addr_valid(vaddr) (pfn_valid(virt_to_pfn(vaddr))) - -# ifndef CONFIG_MMU -# define __pa(vaddr) ((unsigned long) (vaddr)) -# define __va(paddr) ((void *) (paddr)) -# else /* CONFIG_MMU */ -# define __pa(x) __virt_to_phys((unsigned long)(x)) -# define __va(x) ((void *)__phys_to_virt((unsigned long)(x))) -# endif /* CONFIG_MMU */ - +# define __pa(x) __virt_to_phys((unsigned long)(x)) +# define __va(x) ((void *)__phys_to_virt((unsigned long)(x))) /* Convert between virtual and physical address for MMU. */ /* Handle MicroBlaze processor with virtual memory. */ diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h index 32764cd077c..e9834b2991d 100644 --- a/arch/microblaze/include/asm/pci-bridge.h +++ b/arch/microblaze/include/asm/pci-bridge.h @@ -140,7 +140,6 @@ extern void pci_process_bridge_OF_ranges(struct pci_controller *hose, /* Allocate & free a PCI host bridge structure */ extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev); extern void pcibios_free_controller(struct pci_controller *phb); -extern void pcibios_setup_phb_resources(struct pci_controller *hose); #endif /* __KERNEL__ */ #endif /* _ASM_MICROBLAZE_PCI_BRIDGE_H */ diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h index 1dd9d6b1e27..033137628e8 100644 --- a/arch/microblaze/include/asm/pci.h +++ b/arch/microblaze/include/asm/pci.h @@ -42,11 +42,6 @@ struct pci_dev; */ #define pcibios_assign_all_busses() 0 -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h index 904e5ef6a11..6c72ed7eba9 100644 --- a/arch/microblaze/include/asm/setup.h +++ b/arch/microblaze/include/asm/setup.h @@ -26,12 +26,6 @@ int setup_early_printk(char *opt); void remap_early_printk(void); void disable_early_printk(void); -#if defined(CONFIG_EARLY_PRINTK) -#define eprintk early_printk -#else -#define eprintk printk -#endif - void heartbeat(void); void setup_heartbeat(void); diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h index e6a2284571d..5a433cbaafb 100644 --- a/arch/microblaze/include/asm/system.h +++ b/arch/microblaze/include/asm/system.h @@ -17,8 +17,6 @@ #include <asm-generic/cmpxchg.h> #include <asm-generic/cmpxchg-local.h> -#define __ARCH_WANT_INTERRUPTS_ON_CTXSW - struct task_struct; struct thread_info; @@ -96,11 +94,4 @@ extern struct dentry *of_debugfs_root; #define arch_align_stack(x) (x) -/* - * MicroBlaze doesn't handle unaligned accesses in hardware. - * - * Based on this we force the IP header alignment in network drivers. - */ -#define NET_IP_ALIGN 2 - #endif /* _ASM_MICROBLAZE_SYSTEM_H */ diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h index b73da2ac21b..1a8ab6a5c03 100644 --- a/arch/microblaze/include/asm/thread_info.h +++ b/arch/microblaze/include/asm/thread_info.h @@ -125,7 +125,6 @@ static inline struct thread_info *current_thread_info(void) #define TIF_MEMDIE 6 /* is terminating due to OOM killer */ #define TIF_SYSCALL_AUDIT 9 /* syscall auditing active */ #define TIF_SECCOMP 10 /* secure computing */ -#define TIF_FREEZE 14 /* Freezing for suspend */ /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_POLLING_NRFLAG 16 @@ -137,7 +136,6 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_IRET (1 << TIF_IRET) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) -#define _TIF_FREEZE (1 << TIF_FREEZE) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SECCOMP (1 << TIF_SECCOMP) diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index 5bb95a11880..072b0077abf 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -95,7 +95,7 @@ static inline int ___range_ok(unsigned long addr, unsigned long size) * - "addr", "addr + size" and "size" are all below the limit */ #define access_ok(type, addr, size) \ - (get_fs().seg > (((unsigned long)(addr)) | \ + (get_fs().seg >= (((unsigned long)(addr)) | \ (size) | ((unsigned long)(addr) + (size)))) /* || printk("access_ok failed for %s at 0x%08lx (size %d), seg 0x%08x\n", diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h index 7d7092b917a..d20ffbc86be 100644 --- a/arch/microblaze/include/asm/unistd.h +++ b/arch/microblaze/include/asm/unistd.h @@ -391,8 +391,11 @@ #define __NR_clock_adjtime 373 #define __NR_syncfs 374 #define __NR_setns 375 +#define __NR_sendmmsg 376 +#define __NR_process_vm_readv 377 +#define __NR_process_vm_writev 378 -#define __NR_syscalls 376 +#define __NR_syscalls 379 #ifdef __KERNEL__ #ifndef __ASSEMBLY__ diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c index 44394d80a68..54194b28574 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo.c +++ b/arch/microblaze/kernel/cpu/cpuinfo.c @@ -34,6 +34,7 @@ const struct cpu_ver_key cpu_ver_lookup[] = { {"8.00.a", 0x12}, {"8.00.b", 0x13}, {"8.10.a", 0x14}, + {"8.20.a", 0x15}, {NULL, 0}, }; diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c index 393e6b2db68..65a4af4cbbb 100644 --- a/arch/microblaze/kernel/dma.c +++ b/arch/microblaze/kernel/dma.c @@ -10,8 +10,8 @@ #include <linux/dma-mapping.h> #include <linux/gfp.h> #include <linux/dma-debug.h> +#include <linux/export.h> #include <asm/bug.h> -#include <asm/cacheflush.h> /* * Generic direct DMA implementation @@ -21,21 +21,6 @@ * can set archdata.dma_data to an unsigned long holding the offset. By * default the offset is PCI_DRAM_OFFSET. */ -static inline void __dma_sync_page(unsigned long paddr, unsigned long offset, - size_t size, enum dma_data_direction direction) -{ - switch (direction) { - case DMA_TO_DEVICE: - case DMA_BIDIRECTIONAL: - flush_dcache_range(paddr + offset, paddr + offset + size); - break; - case DMA_FROM_DEVICE: - invalidate_dcache_range(paddr + offset, paddr + offset + size); - break; - default: - BUG(); - } -} static unsigned long get_dma_direct_offset(struct device *dev) { @@ -91,7 +76,7 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, /* FIXME this part of code is untested */ for_each_sg(sgl, sg, nents, i) { sg->dma_address = sg_phys(sg) + get_dma_direct_offset(dev); - __dma_sync_page(page_to_phys(sg_page(sg)), sg->offset, + __dma_sync(page_to_phys(sg_page(sg)) + sg->offset, sg->length, direction); } @@ -116,7 +101,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev, enum dma_data_direction direction, struct dma_attrs *attrs) { - __dma_sync_page(page_to_phys(page), offset, size, direction); + __dma_sync(page_to_phys(page) + offset, size, direction); return page_to_phys(page) + offset + get_dma_direct_offset(dev); } @@ -131,7 +116,63 @@ static inline void dma_direct_unmap_page(struct device *dev, * phys_to_virt is here because in __dma_sync_page is __virt_to_phys and * dma_address is physical address */ - __dma_sync_page(dma_address, 0 , size, direction); + __dma_sync(dma_address, size, direction); +} + +static inline void +dma_direct_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction) +{ + /* + * It's pointless to flush the cache as the memory segment + * is given to the CPU + */ + + if (direction == DMA_FROM_DEVICE) + __dma_sync(dma_handle, size, direction); +} + +static inline void +dma_direct_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction) +{ + /* + * It's pointless to invalidate the cache if the device isn't + * supposed to write to the relevant region + */ + + if (direction == DMA_TO_DEVICE) + __dma_sync(dma_handle, size, direction); +} + +static inline void +dma_direct_sync_sg_for_cpu(struct device *dev, + struct scatterlist *sgl, int nents, + enum dma_data_direction direction) +{ + struct scatterlist *sg; + int i; + + /* FIXME this part of code is untested */ + if (direction == DMA_FROM_DEVICE) + for_each_sg(sgl, sg, nents, i) + __dma_sync(sg->dma_address, sg->length, direction); +} + +static inline void +dma_direct_sync_sg_for_device(struct device *dev, + struct scatterlist *sgl, int nents, + enum dma_data_direction direction) +{ + struct scatterlist *sg; + int i; + + /* FIXME this part of code is untested */ + if (direction == DMA_TO_DEVICE) + for_each_sg(sgl, sg, nents, i) + __dma_sync(sg->dma_address, sg->length, direction); } struct dma_map_ops dma_direct_ops = { @@ -142,6 +183,10 @@ struct dma_map_ops dma_direct_ops = { .dma_supported = dma_direct_dma_supported, .map_page = dma_direct_map_page, .unmap_page = dma_direct_unmap_page, + .sync_single_for_cpu = dma_direct_sync_single_for_cpu, + .sync_single_for_device = dma_direct_sync_single_for_device, + .sync_sg_for_cpu = dma_direct_sync_sg_for_cpu, + .sync_sg_for_device = dma_direct_sync_sg_for_device, }; EXPORT_SYMBOL(dma_direct_ops); diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c index d26d92d4775..8356e47631c 100644 --- a/arch/microblaze/kernel/early_printk.c +++ b/arch/microblaze/kernel/early_printk.c @@ -50,9 +50,9 @@ static void early_printk_uartlite_write(struct console *unused, const char *s, unsigned n) { while (*s && n-- > 0) { - early_printk_uartlite_putc(*s); if (*s == '\n') early_printk_uartlite_putc('\r'); + early_printk_uartlite_putc(*s); s++; } } @@ -94,9 +94,9 @@ static void early_printk_uart16550_write(struct console *unused, const char *s, unsigned n) { while (*s && n-- > 0) { - early_printk_uart16550_putc(*s); if (*s == '\n') early_printk_uart16550_putc('\r'); + early_printk_uart16550_putc(*s); s++; } } diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S index ca15bc5c744..66e34a3bfe1 100644 --- a/arch/microblaze/kernel/entry.S +++ b/arch/microblaze/kernel/entry.S @@ -468,7 +468,7 @@ C_ENTRY(sys_fork_wrapper): addi r5, r0, SIGCHLD /* Arg 0: flags */ lwi r6, r1, PT_R1 /* Arg 1: child SP (use parent's) */ addik r7, r1, 0 /* Arg 2: parent context */ - add r8. r0, r0 /* Arg 3: (unused) */ + add r8, r0, r0 /* Arg 3: (unused) */ add r9, r0, r0; /* Arg 4: (unused) */ brid do_fork /* Do real work (tail-call) */ add r10, r0, r0; /* Arg 5: (unused) */ diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c index 66fad230122..6348dc82f42 100644 --- a/arch/microblaze/kernel/exceptions.c +++ b/arch/microblaze/kernel/exceptions.c @@ -119,7 +119,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type, case MICROBLAZE_DIV_ZERO_EXCEPTION: if (user_mode(regs)) { pr_debug("Divide by zero exception in user mode\n"); - _exception(SIGILL, regs, FPE_INTDIV, addr); + _exception(SIGFPE, regs, FPE_INTDIV, addr); return; } printk(KERN_WARNING "Divide by zero exception " \ diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c index eb41441c7fd..44b177e2ab1 100644 --- a/arch/microblaze/kernel/intc.c +++ b/arch/microblaze/kernel/intc.c @@ -42,8 +42,9 @@ unsigned int nr_irq; static void intc_enable_or_unmask(struct irq_data *d) { - unsigned long mask = 1 << d->irq; - pr_debug("enable_or_unmask: %d\n", d->irq); + unsigned long mask = 1 << d->hwirq; + + pr_debug("enable_or_unmask: %ld\n", d->hwirq); out_be32(INTC_BASE + SIE, mask); /* ack level irqs because they can't be acked during @@ -56,20 +57,21 @@ static void intc_enable_or_unmask(struct irq_data *d) static void intc_disable_or_mask(struct irq_data *d) { - pr_debug("disable: %d\n", d->irq); - out_be32(INTC_BASE + CIE, 1 << d->irq); + pr_debug("disable: %ld\n", d->hwirq); + out_be32(INTC_BASE + CIE, 1 << d->hwirq); } static void intc_ack(struct irq_data *d) { - pr_debug("ack: %d\n", d->irq); - out_be32(INTC_BASE + IAR, 1 << d->irq); + pr_debug("ack: %ld\n", d->hwirq); + out_be32(INTC_BASE + IAR, 1 << d->hwirq); } static void intc_mask_ack(struct irq_data *d) { - unsigned long mask = 1 << d->irq; - pr_debug("disable_and_ack: %d\n", d->irq); + unsigned long mask = 1 << d->hwirq; + + pr_debug("disable_and_ack: %ld\n", d->hwirq); out_be32(INTC_BASE + CIE, mask); out_be32(INTC_BASE + IAR, mask); } @@ -91,7 +93,7 @@ unsigned int get_irq(struct pt_regs *regs) * order to handle multiple interrupt controllers. It currently * is hardcoded to check for interrupts only on the first INTC. */ - irq = in_be32(INTC_BASE + IVR); + irq = in_be32(INTC_BASE + IVR) + NO_IRQ_OFFSET; pr_debug("get_irq: %d\n", irq); return irq; @@ -99,7 +101,7 @@ unsigned int get_irq(struct pt_regs *regs) void __init init_IRQ(void) { - u32 i, j, intr_type; + u32 i, intr_mask; struct device_node *intc = NULL; #ifdef CONFIG_SELFMOD_INTC unsigned int intc_baseaddr = 0; @@ -113,35 +115,24 @@ void __init init_IRQ(void) 0 }; #endif - const char * const intc_list[] = { - "xlnx,xps-intc-1.00.a", - NULL - }; - - for (j = 0; intc_list[j] != NULL; j++) { - intc = of_find_compatible_node(NULL, NULL, intc_list[j]); - if (intc) - break; - } + intc = of_find_compatible_node(NULL, NULL, "xlnx,xps-intc-1.00.a"); BUG_ON(!intc); - intc_baseaddr = be32_to_cpup(of_get_property(intc, - "reg", NULL)); + intc_baseaddr = be32_to_cpup(of_get_property(intc, "reg", NULL)); intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE); nr_irq = be32_to_cpup(of_get_property(intc, "xlnx,num-intr-inputs", NULL)); - intr_type = - be32_to_cpup(of_get_property(intc, - "xlnx,kind-of-intr", NULL)); - if (intr_type > (u32)((1ULL << nr_irq) - 1)) + intr_mask = + be32_to_cpup(of_get_property(intc, "xlnx,kind-of-intr", NULL)); + if (intr_mask > (u32)((1ULL << nr_irq) - 1)) printk(KERN_INFO " ERROR: Mismatch in kind-of-intr param\n"); #ifdef CONFIG_SELFMOD_INTC selfmod_function((int *) arr_func, intc_baseaddr); #endif - printk(KERN_INFO "%s #0 at 0x%08x, num_irq=%d, edge=0x%x\n", - intc_list[j], intc_baseaddr, nr_irq, intr_type); + printk(KERN_INFO "XPS intc #0 at 0x%08x, num_irq=%d, edge=0x%x\n", + intc_baseaddr, nr_irq, intr_mask); /* * Disable all external interrupts until they are @@ -155,8 +146,8 @@ void __init init_IRQ(void) /* Turn on the Master Enable. */ out_be32(intc_baseaddr + MER, MER_HIE | MER_ME); - for (i = 0; i < nr_irq; ++i) { - if (intr_type & (0x00000001 << i)) { + for (i = IRQ_OFFSET; i < (nr_irq + IRQ_OFFSET); ++i) { + if (intr_mask & (0x00000001 << (i - IRQ_OFFSET))) { irq_set_chip_and_handler_name(i, &intc_dev, handle_edge_irq, "edge"); irq_clear_status_flags(i, IRQ_LEVEL); @@ -165,5 +156,6 @@ void __init init_IRQ(void) handle_level_irq, "level"); irq_set_status_flags(i, IRQ_LEVEL); } + irq_get_irq_data(i)->hwirq = i - IRQ_OFFSET; } } diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c index ce7ac8435d5..bbebcae72c0 100644 --- a/arch/microblaze/kernel/irq.c +++ b/arch/microblaze/kernel/irq.c @@ -18,6 +18,7 @@ #include <linux/kernel_stat.h> #include <linux/irq.h> #include <linux/of_irq.h> +#include <linux/export.h> #include <asm/prom.h> @@ -32,11 +33,12 @@ void __irq_entry do_IRQ(struct pt_regs *regs) irq_enter(); irq = get_irq(regs); next_irq: - BUG_ON(irq == -1U); - generic_handle_irq(irq); + BUG_ON(!irq); + /* Substract 1 because of get_irq */ + generic_handle_irq(irq + IRQ_OFFSET - NO_IRQ_OFFSET); irq = get_irq(regs); - if (irq != -1U) { + if (irq) { pr_debug("next irq: %d\n", irq); ++concurrent_irq; goto next_irq; @@ -51,13 +53,13 @@ next_irq: intc without any cascades or any connection that's why mapping is 1:1 */ unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq) { - return hwirq; + return hwirq + IRQ_OFFSET; } EXPORT_SYMBOL_GPL(irq_create_mapping); unsigned int irq_create_of_mapping(struct device_node *controller, const u32 *intspec, unsigned int intsize) { - return intspec[0]; + return intspec[0] + IRQ_OFFSET; } EXPORT_SYMBOL_GPL(irq_create_of_mapping); diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c index 142426f631b..f39257a5abc 100644 --- a/arch/microblaze/kernel/module.c +++ b/arch/microblaze/kernel/module.c @@ -100,7 +100,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab, break; case R_MICROBLAZE_64_NONE: - pr_debug("R_MICROBLAZE_NONE\n"); + pr_debug("R_MICROBLAZE_64_NONE\n"); break; case R_MICROBLAZE_NONE: diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index dbb812421d8..7dcb5bfffb7 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -103,10 +103,12 @@ void cpu_idle(void) if (!idle) idle = default_idle; - tick_nohz_stop_sched_tick(1); + tick_nohz_idle_enter(); + rcu_idle_enter(); while (!need_resched()) idle(); - tick_nohz_restart_sched_tick(); + rcu_idle_exit(); + tick_nohz_idle_exit(); preempt_enable_no_resched(); schedule(); @@ -179,6 +181,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, ti->cpu_context.msr = (childregs->msr|MSR_VM); ti->cpu_context.msr &= ~MSR_UMS; /* switch_to to kernel mode */ + ti->cpu_context.msr &= ~MSR_IE; #endif ti->cpu_context.r15 = (unsigned long)ret_from_fork - 8; diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c index 977484add21..80d314e8190 100644 --- a/arch/microblaze/kernel/prom.c +++ b/arch/microblaze/kernel/prom.c @@ -122,7 +122,6 @@ void __init early_init_devtree(void *params) of_scan_flat_dt(early_init_dt_scan_chosen, cmd_line); /* Scan memory nodes and rebuild MEMBLOCKs */ - memblock_init(); of_scan_flat_dt(early_init_dt_scan_root, NULL); of_scan_flat_dt(early_init_dt_scan_memory, NULL); @@ -130,7 +129,7 @@ void __init early_init_devtree(void *params) strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE); parse_early_param(); - memblock_analyze(); + memblock_allow_resize(); pr_debug("Phys. mem: %lx\n", (unsigned long) memblock_phys_mem_size()); diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c index 6a8e0cc5c57..043cb58f9c4 100644 --- a/arch/microblaze/kernel/ptrace.c +++ b/arch/microblaze/kernel/ptrace.c @@ -148,7 +148,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) ret = -1L; if (unlikely(current->audit_context)) - audit_syscall_entry(EM_XILINX_MICROBLAZE, regs->r12, + audit_syscall_entry(EM_MICROBLAZE, regs->r12, regs->r5, regs->r6, regs->r7, regs->r8); diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c index bd8ccab5cef..88a01636f78 100644 --- a/arch/microblaze/kernel/reset.c +++ b/arch/microblaze/kernel/reset.c @@ -19,50 +19,11 @@ static int handle; /* reset pin handle */ static unsigned int reset_val; -static int of_reset_gpio_handle(void) -{ - int ret; /* variable which stored handle reset gpio pin */ - struct device_node *root; /* root node */ - struct device_node *gpio; /* gpio node */ - struct gpio_chip *gc; - u32 flags; - const void *gpio_spec; - - /* find out root node */ - root = of_find_node_by_path("/"); - - /* give me handle for gpio node to be possible allocate pin */ - ret = of_parse_phandles_with_args(root, "hard-reset-gpios", - "#gpio-cells", 0, &gpio, &gpio_spec); - if (ret) { - pr_debug("%s: can't parse gpios property\n", __func__); - goto err0; - } - - gc = of_node_to_gpiochip(gpio); - if (!gc) { - pr_debug("%s: gpio controller %s isn't registered\n", - root->full_name, gpio->full_name); - ret = -ENODEV; - goto err1; - } - - ret = gc->of_xlate(gc, root, gpio_spec, &flags); - if (ret < 0) - goto err1; - - ret += gc->base; -err1: - of_node_put(gpio); -err0: - pr_debug("%s exited with status %d\n", __func__, ret); - return ret; -} - void of_platform_reset_gpio_probe(void) { int ret; - handle = of_reset_gpio_handle(); + handle = of_get_named_gpio(of_find_node_by_path("/"), + "hard-reset-gpios", 0); if (!gpio_is_valid(handle)) { printk(KERN_INFO "Skipping unavailable RESET gpio %d (%s)\n", diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index 0e654a12d37..604cd9dd133 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -145,32 +145,32 @@ void __init machine_early_init(const char *cmdline, unsigned int ram, setup_early_printk(NULL); #endif - eprintk("Ramdisk addr 0x%08x, ", ram); + printk("Ramdisk addr 0x%08x, ", ram); if (fdt) - eprintk("FDT at 0x%08x\n", fdt); + printk("FDT at 0x%08x\n", fdt); else - eprintk("Compiled-in FDT at 0x%08x\n", + printk("Compiled-in FDT at 0x%08x\n", (unsigned int)_fdt_start); #ifdef CONFIG_MTD_UCLINUX - eprintk("Found romfs @ 0x%08x (0x%08x)\n", + printk("Found romfs @ 0x%08x (0x%08x)\n", romfs_base, romfs_size); - eprintk("#### klimit %p ####\n", old_klimit); + printk("#### klimit %p ####\n", old_klimit); BUG_ON(romfs_size < 0); /* What else can we do? */ - eprintk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n", + printk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n", romfs_size, romfs_base, (unsigned)&_ebss); - eprintk("New klimit: 0x%08x\n", (unsigned)klimit); + printk("New klimit: 0x%08x\n", (unsigned)klimit); #endif #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR if (msr) - eprintk("!!!Your kernel has setup MSR instruction but " + printk("!!!Your kernel has setup MSR instruction but " "CPU don't have it %x\n", msr); #else if (!msr) - eprintk("!!!Your kernel not setup MSR instruction but " + printk("!!!Your kernel not setup MSR instruction but " "CPU have it %x\n", msr); #endif diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S index d915a122c86..6a2b294ef6d 100644 --- a/arch/microblaze/kernel/syscall_table.S +++ b/arch/microblaze/kernel/syscall_table.S @@ -173,7 +173,7 @@ ENTRY(sys_call_table) .long sys_ni_syscall /* sys_vm86 */ .long sys_ni_syscall /* Old sys_query_module */ .long sys_poll - .long sys_nfsservctl + .long sys_ni_syscall /* old nfsservctl */ .long sys_setresgid /* 170 */ .long sys_getresgid .long sys_prctl @@ -380,3 +380,6 @@ ENTRY(sys_call_table) .long sys_clock_adjtime .long sys_syncfs .long sys_setns /* 375 */ + .long sys_sendmmsg + .long sys_process_vm_readv + .long sys_process_vm_writev diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c index e5550ce4e0e..3cb0bf64013 100644 --- a/arch/microblaze/kernel/timer.c +++ b/arch/microblaze/kernel/timer.c @@ -243,7 +243,7 @@ static int timer_initialized; void __init time_init(void) { - u32 irq, i = 0; + u32 irq; u32 timer_num = 1; struct device_node *timer = NULL; const void *prop; @@ -258,33 +258,24 @@ void __init time_init(void) 0 }; #endif - const char * const timer_list[] = { - "xlnx,xps-timer-1.00.a", - NULL - }; - - for (i = 0; timer_list[i] != NULL; i++) { - timer = of_find_compatible_node(NULL, NULL, timer_list[i]); - if (timer) - break; - } + timer = of_find_compatible_node(NULL, NULL, "xlnx,xps-timer-1.00.a"); BUG_ON(!timer); timer_baseaddr = be32_to_cpup(of_get_property(timer, "reg", NULL)); timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE); - irq = be32_to_cpup(of_get_property(timer, "interrupts", NULL)); + irq = irq_of_parse_and_map(timer, 0); timer_num = be32_to_cpup(of_get_property(timer, "xlnx,one-timer-only", NULL)); if (timer_num) { - eprintk(KERN_EMERG "Please enable two timers in HW\n"); + printk(KERN_EMERG "Please enable two timers in HW\n"); BUG(); } #ifdef CONFIG_SELFMOD_TIMER selfmod_function((int *) arr_func, timer_baseaddr); #endif - printk(KERN_INFO "%s #0 at 0x%08x, irq=%d\n", - timer_list[i], timer_baseaddr, irq); + printk(KERN_INFO "XPS timer #0 at 0x%08x, irq=%d\n", + timer_baseaddr, irq); /* If there is clock-frequency property than use it */ prop = of_get_property(timer, "clock-frequency", NULL); @@ -308,7 +299,8 @@ unsigned long long notrace sched_clock(void) { if (timer_initialized) { struct clocksource *cs = &clocksource_microblaze; - cycle_t cyc = cnt32_to_63(cs->read(NULL)); + + cycle_t cyc = cnt32_to_63(cs->read(NULL)) & LLONG_MAX; return clocksource_cyc2ns(cyc, cs->mult, cs->shift); } return 0; diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile index 10c320aa908..844960e8ae1 100644 --- a/arch/microblaze/lib/Makefile +++ b/arch/microblaze/lib/Makefile @@ -20,10 +20,12 @@ lib-y += uaccess_old.o lib-y += ashldi3.o lib-y += ashrdi3.o +lib-y += cmpdi2.o lib-y += divsi3.o lib-y += lshrdi3.o lib-y += modsi3.o lib-y += muldi3.o lib-y += mulsi3.o +lib-y += ucmpdi2.o lib-y += udivsi3.o lib-y += umodsi3.o diff --git a/arch/microblaze/lib/cmpdi2.c b/arch/microblaze/lib/cmpdi2.c new file mode 100644 index 00000000000..a708400ea7b --- /dev/null +++ b/arch/microblaze/lib/cmpdi2.c @@ -0,0 +1,26 @@ +#include <linux/module.h> + +#include "libgcc.h" + +word_type __cmpdi2(long long a, long long b) +{ + const DWunion au = { + .ll = a + }; + const DWunion bu = { + .ll = b + }; + + if (au.s.high < bu.s.high) + return 0; + else if (au.s.high > bu.s.high) + return 2; + + if ((unsigned int) au.s.low < (unsigned int) bu.s.low) + return 0; + else if ((unsigned int) au.s.low > (unsigned int) bu.s.low) + return 2; + + return 1; +} +EXPORT_SYMBOL(__cmpdi2); diff --git a/arch/microblaze/lib/uaccess_old.S b/arch/microblaze/lib/uaccess_old.S index 5810cec54a7..f037266cdaf 100644 --- a/arch/microblaze/lib/uaccess_old.S +++ b/arch/microblaze/lib/uaccess_old.S @@ -10,6 +10,7 @@ #include <linux/errno.h> #include <linux/linkage.h> +#include <asm/page.h> /* * int __strncpy_user(char *to, char *from, int len); @@ -33,8 +34,8 @@ __strncpy_user: * r3 - temp count * r4 - temp val */ + beqid r7,3f addik r3,r7,0 /* temp_count = len */ - beqi r3,3f 1: lbu r4,r6,r0 sb r4,r5,r0 @@ -76,8 +77,8 @@ __strncpy_user: .type __strnlen_user, @function .align 4; __strnlen_user: + beqid r6,3f addik r3,r6,0 - beqi r3,3f 1: lbu r4,r5,r0 beqid r4,2f /* break on NUL */ @@ -102,6 +103,49 @@ __strnlen_user: .section __ex_table,"a" .word 1b,4b +/* Loop unrolling for __copy_tofrom_user */ +#define COPY(offset) \ +1: lwi r4 , r6, 0x0000 + offset; \ +2: lwi r19, r6, 0x0004 + offset; \ +3: lwi r20, r6, 0x0008 + offset; \ +4: lwi r21, r6, 0x000C + offset; \ +5: lwi r22, r6, 0x0010 + offset; \ +6: lwi r23, r6, 0x0014 + offset; \ +7: lwi r24, r6, 0x0018 + offset; \ +8: lwi r25, r6, 0x001C + offset; \ +9: swi r4 , r5, 0x0000 + offset; \ +10: swi r19, r5, 0x0004 + offset; \ +11: swi r20, r5, 0x0008 + offset; \ +12: swi r21, r5, 0x000C + offset; \ +13: swi r22, r5, 0x0010 + offset; \ +14: swi r23, r5, 0x0014 + offset; \ +15: swi r24, r5, 0x0018 + offset; \ +16: swi r25, r5, 0x001C + offset; \ + .section __ex_table,"a"; \ + .word 1b, 0f; \ + .word 2b, 0f; \ + .word 3b, 0f; \ + .word 4b, 0f; \ + .word 5b, 0f; \ + .word 6b, 0f; \ + .word 7b, 0f; \ + .word 8b, 0f; \ + .word 9b, 0f; \ + .word 10b, 0f; \ + .word 11b, 0f; \ + .word 12b, 0f; \ + .word 13b, 0f; \ + .word 14b, 0f; \ + .word 15b, 0f; \ + .word 16b, 0f; \ + .text + +#define COPY_80(offset) \ + COPY(0x00 + offset);\ + COPY(0x20 + offset);\ + COPY(0x40 + offset);\ + COPY(0x60 + offset); + /* * int __copy_tofrom_user(char *to, char *from, int len) * Return: @@ -119,34 +163,79 @@ __copy_tofrom_user: * r7, r3 - count * r4 - tempval */ - beqid r7, 3f /* zero size is not likely */ - andi r3, r7, 0x3 /* filter add count */ - bneid r3, 4f /* if is odd value then byte copying */ + beqid r7, 0f /* zero size is not likely */ or r3, r5, r6 /* find if is any to/from unaligned */ - andi r3, r3, 0x3 /* mask unaligned */ - bneid r3, 1f /* it is unaligned -> then jump */ + or r3, r3, r7 /* find if count is unaligned */ + andi r3, r3, 0x3 /* mask last 3 bits */ + bneid r3, bu1 /* if r3 is not zero then byte copying */ + or r3, r0, r0 + + rsubi r3, r7, PAGE_SIZE /* detect PAGE_SIZE */ + beqid r3, page; or r3, r0, r0 -/* at least one 4 byte copy */ -5: lw r4, r6, r3 -6: sw r4, r5, r3 +w1: lw r4, r6, r3 /* at least one 4 byte copy */ +w2: sw r4, r5, r3 addik r7, r7, -4 - bneid r7, 5b + bneid r7, w1 addik r3, r3, 4 addik r3, r7, 0 rtsd r15, 8 nop -4: or r3, r0, r0 -1: lbu r4,r6,r3 -2: sb r4,r5,r3 + + .section __ex_table,"a" + .word w1, 0f; + .word w2, 0f; + .text + +.align 4 /* Alignment is important to keep icache happy */ +page: /* Create room on stack and save registers for storign values */ + addik r1, r1, -32 + swi r19, r1, 4 + swi r20, r1, 8 + swi r21, r1, 12 + swi r22, r1, 16 + swi r23, r1, 20 + swi r24, r1, 24 + swi r25, r1, 28 +loop: /* r4, r19, r20, r21, r22, r23, r24, r25 are used for storing values */ + /* Loop unrolling to get performance boost */ + COPY_80(0x000); + COPY_80(0x080); + COPY_80(0x100); + COPY_80(0x180); + /* copy loop */ + addik r6, r6, 0x200 + addik r7, r7, -0x200 + bneid r7, loop + addik r5, r5, 0x200 + /* Restore register content */ + lwi r19, r1, 4 + lwi r20, r1, 8 + lwi r21, r1, 12 + lwi r22, r1, 16 + lwi r23, r1, 20 + lwi r24, r1, 24 + lwi r25, r1, 28 + addik r1, r1, 32 + /* return back */ + addik r3, r7, 0 + rtsd r15, 8 + nop + +.align 4 /* Alignment is important to keep icache happy */ +bu1: lbu r4,r6,r3 +bu2: sb r4,r5,r3 addik r7,r7,-1 - bneid r7,1b + bneid r7,bu1 addik r3,r3,1 /* delay slot */ -3: +0: addik r3,r7,0 rtsd r15,8 nop .size __copy_tofrom_user, . - __copy_tofrom_user .section __ex_table,"a" - .word 1b,3b,2b,3b,5b,3b,6b,3b + .word bu1, 0b; + .word bu2, 0b; + .text diff --git a/arch/microblaze/lib/ucmpdi2.c b/arch/microblaze/lib/ucmpdi2.c new file mode 100644 index 00000000000..63ca105b671 --- /dev/null +++ b/arch/microblaze/lib/ucmpdi2.c @@ -0,0 +1,20 @@ +#include <linux/module.h> + +#include "libgcc.h" + +word_type __ucmpdi2(unsigned long long a, unsigned long long b) +{ + const DWunion au = {.ll = a}; + const DWunion bu = {.ll = b}; + + if ((unsigned int) au.s.high < (unsigned int) bu.s.high) + return 0; + else if ((unsigned int) au.s.high > (unsigned int) bu.s.high) + return 2; + if ((unsigned int) au.s.low < (unsigned int) bu.s.low) + return 0; + else if ((unsigned int) au.s.low > (unsigned int) bu.s.low) + return 2; + return 1; +} +EXPORT_SYMBOL(__ucmpdi2); diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index 213f2d67166..565d193c7eb 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -17,6 +17,7 @@ #include <linux/pfn.h> #include <linux/slab.h> #include <linux/swap.h> +#include <linux/export.h> #include <asm/page.h> #include <asm/mmu_context.h> @@ -304,11 +305,11 @@ asmlinkage void __init mmu_init(void) /* Map in all of RAM starting at CONFIG_KERNEL_START */ mapin_ram(); -#ifdef HIGHMEM_START_BOOL - ioremap_base = HIGHMEM_START; +#ifdef CONFIG_HIGHMEM_START_BOOL + ioremap_base = CONFIG_HIGHMEM_START; #else ioremap_base = 0xfe000000UL; /* for now, could be 0xfffff000 */ -#endif /* CONFIG_HIGHMEM */ +#endif /* CONFIG_HIGHMEM_START_BOOL */ ioremap_bot = ioremap_base; /* Initialize the context management stuff */ diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c index 3fbf16f4e16..b07abbac031 100644 --- a/arch/microblaze/pci/iomap.c +++ b/arch/microblaze/pci/iomap.c @@ -6,28 +6,10 @@ #include <linux/init.h> #include <linux/pci.h> #include <linux/mm.h> +#include <linux/export.h> #include <asm/io.h> #include <asm/pci-bridge.h> -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len) - return NULL; - if (max && len > max) - len = max; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) - return ioremap(start, len); - /* What? */ - return NULL; -} -EXPORT_SYMBOL(pci_iomap); - void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { if (isa_vaddr_is_ioport(addr)) diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index 4cfae20f106..85f2ac1230a 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -30,6 +30,7 @@ #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_pci.h> +#include <linux/export.h> #include <asm/processor.h> #include <asm/io.h> @@ -189,6 +190,11 @@ int pcibios_add_platform_entries(struct pci_dev *pdev) return device_create_file(&pdev->dev, &dev_attr_devspec); } +void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + char __devinit *pcibios_setup(char *str) { return str; @@ -241,7 +247,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev) line, pin); virq = irq_create_mapping(NULL, line); - if (virq != NO_IRQ) + if (virq) irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW); } else { pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n", @@ -252,7 +258,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev) virq = irq_create_of_mapping(oirq.controller, oirq.specifier, oirq.size); } - if (virq == NO_IRQ) { + if (!virq) { pr_debug(" Failed to map !\n"); return -1; } @@ -1018,7 +1024,6 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus) struct pci_dev *dev = bus->self; pci_bus_for_each_resource(bus, res, i) { - res = bus->resource[i]; if (!res) continue; if (!res->flags) @@ -1218,7 +1223,6 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus) pci_domain_nr(bus), bus->number); pci_bus_for_each_resource(bus, res, i) { - res = bus->resource[i]; if (!res || !res->flags || res->start > res->end || res->parent) continue; @@ -1509,14 +1513,18 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) return pci_enable_resources(dev, mask); } -void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) +static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, struct list_head *resources) { - struct pci_bus *bus = hose->bus; struct resource *res; int i; /* Hookup PHB IO resource */ - bus->resource[0] = res = &hose->io_resource; + res = &hose->io_resource; + + /* Fixup IO space offset */ + io_offset = (unsigned long)hose->io_base_virt - isa_io_base; + res->start = (res->start + io_offset) & 0xffffffffu; + res->end = (res->end + io_offset) & 0xffffffffu; if (!res->flags) { printk(KERN_WARNING "PCI: I/O resource not set for host" @@ -1527,6 +1535,7 @@ void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) res->end = res->start + IO_SPACE_LIMIT; res->flags = IORESOURCE_IO; } + pci_add_resource(resources, res); pr_debug("PCI: PHB IO resource = %016llx-%016llx [%lx]\n", (unsigned long long)res->start, @@ -1549,7 +1558,7 @@ void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) res->flags = IORESOURCE_MEM; } - bus->resource[i+1] = res; + pci_add_resource(resources, res); pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n", i, (unsigned long long)res->start, @@ -1572,34 +1581,27 @@ struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus) static void __devinit pcibios_scan_phb(struct pci_controller *hose) { + LIST_HEAD(resources); struct pci_bus *bus; struct device_node *node = hose->dn; - unsigned long io_offset; - struct resource *res = &hose->io_resource; pr_debug("PCI: Scanning PHB %s\n", node ? node->full_name : "<NO NAME>"); - /* Create an empty bus for the toplevel */ - bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose); + pcibios_setup_phb_resources(hose, &resources); + + bus = pci_scan_root_bus(hose->parent, hose->first_busno, + hose->ops, hose, &resources); if (bus == NULL) { printk(KERN_ERR "Failed to create bus for PCI domain %04x\n", hose->global_number); + pci_free_resource_list(&resources); return; } bus->secondary = hose->first_busno; hose->bus = bus; - /* Fixup IO space offset */ - io_offset = (unsigned long)hose->io_base_virt - isa_io_base; - res->start = (res->start + io_offset) & 0xffffffffu; - res->end = (res->end + io_offset) & 0xffffffffu; - - /* Wire up PHB bus resources */ - pcibios_setup_phb_resources(hose); - - /* Scan children */ - hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); + hose->last_busno = bus->subordinate; } static int __init pcibios_init(void) @@ -1613,8 +1615,6 @@ static int __init pcibios_init(void) list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { hose->last_busno = 0xff; pcibios_scan_phb(hose); - printk(KERN_INFO "calling pci_bus_add_devices()\n"); - pci_bus_add_devices(hose->bus); if (next_busno <= hose->last_busno) next_busno = hose->last_busno + 1; } |