diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/compressed/head.S | 14 | ||||
| -rw-r--r-- | arch/arm/mm/proc-v6.S | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/setup.c | 26 | ||||
| -rw-r--r-- | arch/mips/lib/mips-atomic.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh_pe.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/msi.c | 3 |
6 files changed, 41 insertions, 14 deletions
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 90275f036cd1..49ca86e37b8d 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -652,6 +652,15 @@ __setup_mmu: sub r3, r4, #16384 @ Page directory size mov pc, lr ENDPROC(__setup_mmu) +@ Enable unaligned access on v6, to allow better code generation +@ for the decompressor C code: +__armv6_mmu_cache_on: + mrc p15, 0, r0, c1, c0, 0 @ read SCTLR + bic r0, r0, #2 @ A (no unaligned access fault) + orr r0, r0, #1 << 22 @ U (v6 unaligned access model) + mcr p15, 0, r0, c1, c0, 0 @ write SCTLR + b __armv4_mmu_cache_on + __arm926ejs_mmu_cache_on: #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH mov r0, #4 @ put dcache in WT mode @@ -694,6 +703,9 @@ __armv7_mmu_cache_on: bic r0, r0, #1 << 28 @ clear SCTLR.TRE orr r0, r0, #0x5000 @ I-cache enable, RR cache replacement orr r0, r0, #0x003c @ write buffer + bic r0, r0, #2 @ A (no unaligned access fault) + orr r0, r0, #1 << 22 @ U (v6 unaligned access model) + @ (needed for ARM1176) #ifdef CONFIG_MMU #ifdef CONFIG_CPU_ENDIAN_BE8 orr r0, r0, #1 << 25 @ big-endian page tables @@ -914,7 +926,7 @@ proc_types: .word 0x0007b000 @ ARMv6 .word 0x000ff000 - W(b) __armv4_mmu_cache_on + W(b) __armv6_mmu_cache_on W(b) __armv4_mmu_cache_off W(b) __armv6_mmu_cache_flush diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 86b8b480634f..09c5233f4dfc 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -89,7 +89,7 @@ ENTRY(cpu_v6_dcache_clean_area) mov pc, lr /* - * cpu_arm926_switch_mm(pgd_phys, tsk) + * cpu_v6_switch_mm(pgd_phys, tsk) * * Set the translation table base pointer to be pgd_phys * diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index a53f8ec37aac..290dc6a1d7a3 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -79,7 +79,7 @@ static struct resource data_resource = { .name = "Kernel data", }; void __init add_memory_region(phys_t start, phys_t size, long type) { int x = boot_mem_map.nr_map; - struct boot_mem_map_entry *prev = boot_mem_map.map + x - 1; + int i; /* Sanity check */ if (start + size < start) { @@ -88,15 +88,29 @@ void __init add_memory_region(phys_t start, phys_t size, long type) } /* - * Try to merge with previous entry if any. This is far less than - * perfect but is sufficient for most real world cases. + * Try to merge with existing entry, if any. */ - if (x && prev->addr + prev->size == start && prev->type == type) { - prev->size += size; + for (i = 0; i < boot_mem_map.nr_map; i++) { + struct boot_mem_map_entry *entry = boot_mem_map.map + i; + unsigned long top; + + if (entry->type != type) + continue; + + if (start + size < entry->addr) + continue; /* no overlap */ + + if (entry->addr + entry->size < start) + continue; /* no overlap */ + + top = max(entry->addr + entry->size, start + size); + entry->addr = min(entry->addr, start); + entry->size = top - entry->addr; + return; } - if (x == BOOT_MEM_MAP_MAX) { + if (boot_mem_map.nr_map == BOOT_MEM_MAP_MAX) { pr_err("Ooops! Too many entries in the memory map!\n"); return; } diff --git a/arch/mips/lib/mips-atomic.c b/arch/mips/lib/mips-atomic.c index e091430dbeb1..cd160be3ce4d 100644 --- a/arch/mips/lib/mips-atomic.c +++ b/arch/mips/lib/mips-atomic.c @@ -56,7 +56,7 @@ __asm__( " .set pop \n" " .endm \n"); -void arch_local_irq_disable(void) +notrace void arch_local_irq_disable(void) { preempt_disable(); __asm__ __volatile__( @@ -93,7 +93,7 @@ __asm__( " .set pop \n" " .endm \n"); -unsigned long arch_local_irq_save(void) +notrace unsigned long arch_local_irq_save(void) { unsigned long flags; preempt_disable(); @@ -135,7 +135,7 @@ __asm__( " .set pop \n" " .endm \n"); -void arch_local_irq_restore(unsigned long flags) +notrace void arch_local_irq_restore(unsigned long flags) { unsigned long __tmp1; @@ -159,7 +159,7 @@ void arch_local_irq_restore(unsigned long flags) EXPORT_SYMBOL(arch_local_irq_restore); -void __arch_local_irq_restore(unsigned long flags) +notrace void __arch_local_irq_restore(unsigned long flags) { unsigned long __tmp1; diff --git a/arch/powerpc/platforms/pseries/eeh_pe.c b/arch/powerpc/platforms/pseries/eeh_pe.c index 797cd181dc3f..d16c8ded1084 100644 --- a/arch/powerpc/platforms/pseries/eeh_pe.c +++ b/arch/powerpc/platforms/pseries/eeh_pe.c @@ -449,7 +449,7 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe) if (list_empty(&pe->edevs)) { cnt = 0; list_for_each_entry(child, &pe->child_list, child) { - if (!(pe->type & EEH_PE_INVALID)) { + if (!(child->type & EEH_PE_INVALID)) { cnt++; break; } diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c index d19f4977c834..e5b084723131 100644 --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -220,7 +220,8 @@ static struct device_node *find_pe_dn(struct pci_dev *dev, int *total) /* Get the top level device in the PE */ edev = of_node_to_eeh_dev(dn); - edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list); + if (edev->pe) + edev = list_first_entry(&edev->pe->edevs, struct eeh_dev, list); dn = eeh_dev_to_of_node(edev); if (!dn) return NULL; |