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Message-ID: <20080424213703.GA30311@elte.hu>
Date: Thu, 24 Apr 2008 23:37:03 +0200
From: Ingo Molnar <mingo@...e.hu>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>
Subject: [git pull] x86 fixes
Linus, please pull the latest x86 fixes from:
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes.git for-linus
Thanks!
Ingo
------------------>
Alexey Starikovskiy (2):
x86: Drop duplicate from setup.c
x86: fix compilation error in VisWS
Ingo Molnar (3):
intel-iommu.c: dma ops fix
x86: voyager fix
"make namespacecheck" fixes
arch/x86/Kconfig | 2 +-
arch/x86/kernel/apic_32.c | 2 +-
arch/x86/kernel/apic_64.c | 4 ++--
arch/x86/kernel/process_32.c | 2 +-
arch/x86/kernel/process_64.c | 2 +-
arch/x86/kernel/setup.c | 2 --
arch/x86/kernel/setup_32.c | 4 ++--
arch/x86/kernel/smpboot.c | 12 ++++++------
arch/x86/kernel/tlb_64.c | 2 +-
arch/x86/kernel/vsyscall_64.c | 2 +-
arch/x86/mach-visws/mpparse.c | 15 +--------------
arch/x86/mach-voyager/voyager_smp.c | 17 -----------------
arch/x86/mm/dump_pagetables.c | 2 +-
arch/x86/mm/pageattr.c | 2 +-
arch/x86/mm/srat_64.c | 2 +-
drivers/pci/intel-iommu.c | 35 +++++++++++++++++------------------
include/asm-x86/smp.h | 1 -
include/asm-x86/tsc.h | 1 -
18 files changed, 37 insertions(+), 72 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 87a693c..4d350b5 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,7 +23,7 @@ config X86
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
- select HAVE_ARCH_KGDB
+ select HAVE_ARCH_KGDB if !X86_VOYAGER
config GENERIC_LOCKBREAK
diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index 6872081..8317401 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -902,7 +902,7 @@ void __init init_bsp_APIC(void)
apic_write_around(APIC_LVT1, value);
}
-void __cpuinit lapic_setup_esr(void)
+static void __cpuinit lapic_setup_esr(void)
{
unsigned long oldvalue, value, maxlvt;
if (lapic_is_integrated() && !esr_disable) {
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 9e8e5c0..bf83157 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -429,7 +429,7 @@ void __init setup_boot_APIC_clock(void)
* set the DUMMY flag again and force the broadcast mode in the
* clockevents layer.
*/
-void __cpuinit check_boot_apic_timer_broadcast(void)
+static void __cpuinit check_boot_apic_timer_broadcast(void)
{
if (!disable_apic_timer ||
(lapic_clockevent.features & CLOCK_EVT_FEAT_DUMMY))
@@ -834,7 +834,7 @@ void __cpuinit setup_local_APIC(void)
preempt_enable();
}
-void __cpuinit lapic_setup_esr(void)
+static void __cpuinit lapic_setup_esr(void)
{
unsigned maxlvt = lapic_get_maxlvt();
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 7adad08..77de848 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -550,7 +550,7 @@ static void hard_enable_TSC(void)
write_cr4(read_cr4() & ~X86_CR4_TSD);
}
-void enable_TSC(void)
+static void enable_TSC(void)
{
preempt_disable();
if (test_and_clear_thread_flag(TIF_NOTSC))
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 891af1a..131c2ee 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -562,7 +562,7 @@ static void hard_enable_TSC(void)
write_cr4(read_cr4() & ~X86_CR4_TSD);
}
-void enable_TSC(void)
+static void enable_TSC(void)
{
preempt_disable();
if (test_and_clear_thread_flag(TIF_NOTSC))
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 0d1f44a..c0c68c1 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -18,8 +18,6 @@ unsigned disabled_cpus __cpuinitdata;
unsigned int boot_cpu_physical_apicid = -1U;
EXPORT_SYMBOL(boot_cpu_physical_apicid);
-physid_mask_t phys_cpu_present_map;
-
DEFINE_PER_CPU(u16, x86_cpu_to_apicid) = BAD_APICID;
EXPORT_PER_CPU_SYMBOL(x86_cpu_to_apicid);
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index 78828b0..455d3c8 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -442,7 +442,7 @@ static void __init reserve_ebda_region(void)
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
-void __init setup_bootmem_allocator(void);
+static void __init setup_bootmem_allocator(void);
static unsigned long __init setup_memory(void)
{
/*
@@ -477,7 +477,7 @@ static unsigned long __init setup_memory(void)
return max_low_pfn;
}
-void __init zone_sizes_init(void)
+static void __init zone_sizes_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 6a92539..ade371f 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -184,7 +184,7 @@ static void unmap_cpu_to_node(int cpu)
u8 cpu_2_logical_apicid[NR_CPUS] __read_mostly =
{ [0 ... NR_CPUS-1] = BAD_APICID };
-void map_cpu_to_logical_apicid(void)
+static void map_cpu_to_logical_apicid(void)
{
int cpu = smp_processor_id();
int apicid = logical_smp_processor_id();
@@ -197,7 +197,7 @@ void map_cpu_to_logical_apicid(void)
map_cpu_to_node(cpu, node);
}
-void unmap_cpu_to_logical_apicid(int cpu)
+static void unmap_cpu_to_logical_apicid(int cpu)
{
cpu_2_logical_apicid[cpu] = BAD_APICID;
unmap_cpu_to_node(cpu);
@@ -211,7 +211,7 @@ void unmap_cpu_to_logical_apicid(int cpu)
* Report back to the Boot Processor.
* Running on AP.
*/
-void __cpuinit smp_callin(void)
+static void __cpuinit smp_callin(void)
{
int cpuid, phys_id;
unsigned long timeout;
@@ -436,7 +436,7 @@ valid_k7:
#endif
}
-void __cpuinit smp_checks(void)
+static void __cpuinit smp_checks(void)
{
if (smp_b_stepping)
printk(KERN_WARNING "WARNING: SMP operation may be unreliable"
@@ -565,7 +565,7 @@ void __init smp_alloc_memory(void)
}
#endif
-void impress_friends(void)
+static void impress_friends(void)
{
int cpu;
unsigned long bogosum = 0;
@@ -1287,7 +1287,7 @@ void cpu_exit_clear(void)
}
# endif /* CONFIG_X86_32 */
-void remove_siblinginfo(int cpu)
+static void remove_siblinginfo(int cpu)
{
int sibling;
struct cpuinfo_x86 *c = &cpu_data(cpu);
diff --git a/arch/x86/kernel/tlb_64.c b/arch/x86/kernel/tlb_64.c
index 1558e51..df224a8 100644
--- a/arch/x86/kernel/tlb_64.c
+++ b/arch/x86/kernel/tlb_64.c
@@ -191,7 +191,7 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm,
spin_unlock(&f->tlbstate_lock);
}
-int __cpuinit init_smp_flush(void)
+static int __cpuinit init_smp_flush(void)
{
int i;
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index edff4c9..61efa2f 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -216,7 +216,7 @@ vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
return 0;
}
-long __vsyscall(3) venosys_1(void)
+static long __vsyscall(3) venosys_1(void)
{
return -ENOSYS;
}
diff --git a/arch/x86/mach-visws/mpparse.c b/arch/x86/mach-visws/mpparse.c
index 2a8456a..57484e9 100644
--- a/arch/x86/mach-visws/mpparse.c
+++ b/arch/x86/mach-visws/mpparse.c
@@ -11,22 +11,9 @@
/* Have we found an MP table */
int smp_found_config;
-/*
- * Various Linux-internal data structures created from the
- * MP-table.
- */
-int apic_version [MAX_APICS];
-
int pic_mode;
-unsigned long mp_lapic_addr;
-
-/* Processor that is doing the boot up */
-unsigned int boot_cpu_physical_apicid = -1U;
-
-/* Bitmask of physically existing CPUs */
-physid_mask_t phys_cpu_present_map;
-unsigned int __initdata maxcpus = NR_CPUS;
+extern unsigned int __cpuinitdata maxcpus;
/*
* The Visual Workstation is Intel MP compliant in the hardware
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 96f60c7..d057221 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -206,11 +206,6 @@ static struct irq_chip vic_chip = {
/* used to count up as CPUs are brought on line (starts at 0) */
static int cpucount = 0;
-/* steal a page from the bottom of memory for the trampoline and
- * squirrel its address away here. This will be in kernel virtual
- * space */
-unsigned char *trampoline_base;
-
/* The per cpu profile stuff - used in smp_local_timer_interrupt */
static DEFINE_PER_CPU(int, prof_multiplier) = 1;
static DEFINE_PER_CPU(int, prof_old_multiplier) = 1;
@@ -427,18 +422,6 @@ void __init smp_store_cpu_info(int id)
identify_secondary_cpu(c);
}
-/* set up the trampoline and return the physical address of the code */
-unsigned long __init setup_trampoline(void)
-{
- /* these two are global symbols in trampoline.S */
- extern const __u8 trampoline_end[];
- extern const __u8 trampoline_data[];
-
- memcpy(trampoline_base, trampoline_data,
- trampoline_end - trampoline_data);
- return virt_to_phys(trampoline_base);
-}
-
/* Routine initially called when a non-boot CPU is brought online */
static void __init start_secondary(void *unused)
{
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index 6791b83..2c24bea 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -324,7 +324,7 @@ static const struct file_operations ptdump_fops = {
.release = single_release,
};
-int pt_dump_init(void)
+static int pt_dump_init(void)
{
struct dentry *pe;
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index f7823a1..c29ebd0 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -993,7 +993,7 @@ static const struct file_operations dpa_fops = {
.release = single_release,
};
-int __init debug_pagealloc_proc_init(void)
+static int __init debug_pagealloc_proc_init(void)
{
struct dentry *de;
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index fb43d89..3890234 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -163,7 +163,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
pxm, apic_id, node);
}
-int update_end_of_memory(unsigned long end) {return -1;}
+static int update_end_of_memory(unsigned long end) {return -1;}
static int hotadd_enough_memory(struct bootnode *nd) {return 1;}
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
static inline int save_add_info(void) {return 1;}
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 301c68f..1fd8bb7 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -1905,32 +1905,31 @@ get_valid_domain_for_dev(struct pci_dev *pdev)
return domain;
}
-static dma_addr_t intel_map_single(struct device *hwdev, void *addr,
- size_t size, int dir)
+static dma_addr_t
+intel_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, int dir)
{
struct pci_dev *pdev = to_pci_dev(hwdev);
- int ret;
struct dmar_domain *domain;
- unsigned long start_addr;
+ unsigned long start_paddr;
struct iova *iova;
int prot = 0;
+ int ret;
BUG_ON(dir == DMA_NONE);
if (pdev->dev.archdata.iommu == DUMMY_DEVICE_DOMAIN_INFO)
- return virt_to_bus(addr);
+ return paddr;
domain = get_valid_domain_for_dev(pdev);
if (!domain)
return 0;
- addr = (void *)virt_to_phys(addr);
- size = aligned_size((u64)addr, size);
+ size = aligned_size((u64)paddr, size);
iova = __intel_alloc_iova(hwdev, domain, size);
if (!iova)
goto error;
- start_addr = iova->pfn_lo << PAGE_SHIFT_4K;
+ start_paddr = iova->pfn_lo << PAGE_SHIFT_4K;
/*
* Check if DMAR supports zero-length reads on write only
@@ -1942,33 +1941,33 @@ static dma_addr_t intel_map_single(struct device *hwdev, void *addr,
if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL)
prot |= DMA_PTE_WRITE;
/*
- * addr - (addr + size) might be partial page, we should map the whole
+ * paddr - (paddr + size) might be partial page, we should map the whole
* page. Note: if two part of one page are separately mapped, we
- * might have two guest_addr mapping to the same host addr, but this
+ * might have two guest_addr mapping to the same host paddr, but this
* is not a big problem
*/
- ret = domain_page_mapping(domain, start_addr,
- ((u64)addr) & PAGE_MASK_4K, size, prot);
+ ret = domain_page_mapping(domain, start_paddr,
+ ((u64)paddr) & PAGE_MASK_4K, size, prot);
if (ret)
goto error;
pr_debug("Device %s request: %lx@...x mapping: %lx@...x, dir %d\n",
- pci_name(pdev), size, (u64)addr,
- size, (u64)start_addr, dir);
+ pci_name(pdev), size, (u64)paddr,
+ size, (u64)start_paddr, dir);
/* it's a non-present to present mapping */
ret = iommu_flush_iotlb_psi(domain->iommu, domain->id,
- start_addr, size >> PAGE_SHIFT_4K, 1);
+ start_paddr, size >> PAGE_SHIFT_4K, 1);
if (ret)
iommu_flush_write_buffer(domain->iommu);
- return (start_addr + ((u64)addr & (~PAGE_MASK_4K)));
+ return (start_paddr + ((u64)paddr & (~PAGE_MASK_4K)));
error:
if (iova)
__free_iova(&domain->iovad, iova);
printk(KERN_ERR"Device %s request: %lx@...x dir %d --- failed\n",
- pci_name(pdev), size, (u64)addr, dir);
+ pci_name(pdev), size, (u64)paddr, dir);
return 0;
}
@@ -2082,7 +2081,7 @@ static void * intel_alloc_coherent(struct device *hwdev, size_t size,
return NULL;
memset(vaddr, 0, size);
- *dma_handle = intel_map_single(hwdev, vaddr, size, DMA_BIDIRECTIONAL);
+ *dma_handle = intel_map_single(hwdev, virt_to_bus(vaddr), size, DMA_BIDIRECTIONAL);
if (*dma_handle)
return vaddr;
free_pages((unsigned long)vaddr, order);
diff --git a/include/asm-x86/smp.h b/include/asm-x86/smp.h
index 62ebdec..1ebaa5c 100644
--- a/include/asm-x86/smp.h
+++ b/include/asm-x86/smp.h
@@ -199,7 +199,6 @@ static inline int hard_smp_processor_id(void)
#ifdef CONFIG_HOTPLUG_CPU
extern void cpu_exit_clear(void);
extern void cpu_uninit(void);
-extern void remove_siblinginfo(int cpu);
#endif
extern void smp_alloc_memory(void);
diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h
index 0434bd8..d2d8eb5 100644
--- a/include/asm-x86/tsc.h
+++ b/include/asm-x86/tsc.h
@@ -18,7 +18,6 @@ extern unsigned int cpu_khz;
extern unsigned int tsc_khz;
extern void disable_TSC(void);
-extern void enable_TSC(void);
static inline cycles_t get_cycles(void)
{
--
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