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-rw-r--r--arch/arm/include/asm/assembler.h24
-rw-r--r--arch/arm/include/asm/entry-macro-multi.S2
-rw-r--r--arch/arm/include/asm/hardirq.h18
-rw-r--r--arch/arm/include/asm/hardware/it8152.h2
-rw-r--r--arch/arm/include/asm/localtimer.h12
-rw-r--r--arch/arm/include/asm/mach/irq.h2
-rw-r--r--arch/arm/include/asm/mmu.h4
-rw-r--r--arch/arm/include/asm/pgtable.h3
-rw-r--r--arch/arm/include/asm/smp.h17
-rw-r--r--arch/arm/include/asm/smp_mpidr.h17
-rw-r--r--arch/arm/include/asm/smp_twd.h1
11 files changed, 57 insertions, 45 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 4e84d09c9c1b..bc2d2d75f706 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -158,16 +158,24 @@
#ifdef CONFIG_SMP
#define ALT_SMP(instr...) \
9998: instr
+/*
+ * Note: if you get assembler errors from ALT_UP() when building with
+ * CONFIG_THUMB2_KERNEL, you almost certainly need to use
+ * ALT_SMP( W(instr) ... )
+ */
#define ALT_UP(instr...) \
.pushsection ".alt.smp.init", "a" ;\
.long 9998b ;\
- instr ;\
+9997: instr ;\
+ .if . - 9997b != 4 ;\
+ .error "ALT_UP() content must assemble to exactly 4 bytes";\
+ .endif ;\
.popsection
#define ALT_UP_B(label) \
.equ up_b_offset, label - 9998b ;\
.pushsection ".alt.smp.init", "a" ;\
.long 9998b ;\
- b . + up_b_offset ;\
+ W(b) . + up_b_offset ;\
.popsection
#else
#define ALT_SMP(instr...)
@@ -178,16 +186,24 @@
/*
* SMP data memory barrier
*/
- .macro smp_dmb
+ .macro smp_dmb mode
#ifdef CONFIG_SMP
#if __LINUX_ARM_ARCH__ >= 7
+ .ifeqs "\mode","arm"
ALT_SMP(dmb)
+ .else
+ ALT_SMP(W(dmb))
+ .endif
#elif __LINUX_ARM_ARCH__ == 6
ALT_SMP(mcr p15, 0, r0, c7, c10, 5) @ dmb
#else
#error Incompatible SMP platform
#endif
+ .ifeqs "\mode","arm"
ALT_UP(nop)
+ .else
+ ALT_UP(W(nop))
+ .endif
#endif
.endm
@@ -239,7 +255,7 @@
@ Slightly optimised to avoid incrementing the pointer twice
usraccoff \instr, \reg, \ptr, \inc, 0, \cond, \abort
.if \rept == 2
- usraccoff \instr, \reg, \ptr, \inc, 4, \cond, \abort
+ usraccoff \instr, \reg, \ptr, \inc, \inc, \cond, \abort
.endif
add\cond \ptr, #\rept * \inc
diff --git a/arch/arm/include/asm/entry-macro-multi.S b/arch/arm/include/asm/entry-macro-multi.S
index 44f21d4584e8..ec0bbf79c71f 100644
--- a/arch/arm/include/asm/entry-macro-multi.S
+++ b/arch/arm/include/asm/entry-macro-multi.S
@@ -20,7 +20,7 @@
*/
ALT_SMP(test_for_ipi r0, r6, r5, lr)
ALT_UP_B(9997f)
- movne r0, sp
+ movne r1, sp
adrne lr, BSYM(1b)
bne do_IPI
diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h
index 6d7485aff955..89ad1805e579 100644
--- a/arch/arm/include/asm/hardirq.h
+++ b/arch/arm/include/asm/hardirq.h
@@ -5,13 +5,31 @@
#include <linux/threads.h>
#include <asm/irq.h>
+#define NR_IPI 5
+
typedef struct {
unsigned int __softirq_pending;
+#ifdef CONFIG_LOCAL_TIMERS
unsigned int local_timer_irqs;
+#endif
+#ifdef CONFIG_SMP
+ unsigned int ipi_irqs[NR_IPI];
+#endif
} ____cacheline_aligned irq_cpustat_t;
#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+#define __inc_irq_stat(cpu, member) __IRQ_STAT(cpu, member)++
+#define __get_irq_stat(cpu, member) __IRQ_STAT(cpu, member)
+
+#ifdef CONFIG_SMP
+u64 smp_irq_stat_cpu(unsigned int cpu);
+#else
+#define smp_irq_stat_cpu(cpu) 0
+#endif
+
+#define arch_irq_stat_cpu smp_irq_stat_cpu
+
#if NR_IRQS > 512
#define HARDIRQ_BITS 10
#elif NR_IRQS > 256
diff --git a/arch/arm/include/asm/hardware/it8152.h b/arch/arm/include/asm/hardware/it8152.h
index 6700c7fc7ebd..21fa272301f8 100644
--- a/arch/arm/include/asm/hardware/it8152.h
+++ b/arch/arm/include/asm/hardware/it8152.h
@@ -75,7 +75,7 @@ extern unsigned long it8152_base_address;
IT8152_PD_IRQ(1) USB (USBR)
IT8152_PD_IRQ(0) Audio controller (ACR)
*/
-#define IT8152_IRQ(x) (IRQ_BOARD_END + (x))
+#define IT8152_IRQ(x) (IRQ_BOARD_START + (x))
/* IRQ-sources in 3 groups - local devices, LPC (serial), and external PCI */
#define IT8152_LD_IRQ_COUNT 9
diff --git a/arch/arm/include/asm/localtimer.h b/arch/arm/include/asm/localtimer.h
index 50c7e7cfd670..6bc63ab498ce 100644
--- a/arch/arm/include/asm/localtimer.h
+++ b/arch/arm/include/asm/localtimer.h
@@ -30,7 +30,6 @@ asmlinkage void do_local_timer(struct pt_regs *);
#include "smp_twd.h"
#define local_timer_ack() twd_timer_ack()
-#define local_timer_stop() twd_timer_stop()
#else
@@ -40,11 +39,6 @@ asmlinkage void do_local_timer(struct pt_regs *);
*/
int local_timer_ack(void);
-/*
- * Stop a local timer interrupt.
- */
-void local_timer_stop(void);
-
#endif
/*
@@ -52,12 +46,6 @@ void local_timer_stop(void);
*/
void local_timer_setup(struct clock_event_device *);
-#else
-
-static inline void local_timer_stop(void)
-{
-}
-
#endif
#endif
diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h
index 831e81453f81..22ac140edd9e 100644
--- a/arch/arm/include/asm/mach/irq.h
+++ b/arch/arm/include/asm/mach/irq.h
@@ -18,7 +18,7 @@ struct seq_file;
* This is internal. Do not use it.
*/
extern void init_FIQ(void);
-extern int show_fiq_list(struct seq_file *, void *);
+extern int show_fiq_list(struct seq_file *, int);
#ifdef CONFIG_MULTI_IRQ_HANDLER
extern void (*handle_arch_irq)(struct pt_regs *);
diff --git a/arch/arm/include/asm/mmu.h b/arch/arm/include/asm/mmu.h
index 68870c776671..b4ffe9d5b526 100644
--- a/arch/arm/include/asm/mmu.h
+++ b/arch/arm/include/asm/mmu.h
@@ -13,6 +13,10 @@ typedef struct {
#ifdef CONFIG_CPU_HAS_ASID
#define ASID(mm) ((mm)->context.id & 255)
+
+/* init_mm.context.id_lock should be initialized. */
+#define INIT_MM_CONTEXT(name) \
+ .context.id_lock = __SPIN_LOCK_UNLOCKED(name.context.id_lock),
#else
#define ASID(mm) (0)
#endif
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index b155414192da..53d1d5deb111 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -374,6 +374,9 @@ static inline pte_t *pmd_page_vaddr(pmd_t pmd)
#define pmd_page(pmd) pfn_to_page(__phys_to_pfn(pmd_val(pmd)))
+/* we don't need complex calculations here as the pmd is folded into the pgd */
+#define pmd_addr_end(addr,end) (end)
+
/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 3d05190797cb..96ed521f2408 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -33,27 +33,23 @@ struct seq_file;
/*
* generate IPI list text
*/
-extern void show_ipi_list(struct seq_file *p);
+extern void show_ipi_list(struct seq_file *, int);
/*
* Called from assembly code, this handles an IPI.
*/
-asmlinkage void do_IPI(struct pt_regs *regs);
+asmlinkage void do_IPI(int ipinr, struct pt_regs *regs);
/*
* Setup the set of possible CPUs (via set_cpu_possible)
*/
extern void smp_init_cpus(void);
-/*
- * Move global data into per-processor storage.
- */
-extern void smp_store_cpu_info(unsigned int cpuid);
/*
* Raise an IPI cross call on CPUs in callmap.
*/
-extern void smp_cross_call(const struct cpumask *mask);
+extern void smp_cross_call(const struct cpumask *mask, int ipi);
/*
* Boot a secondary CPU, and assign it the specified idle task.
@@ -73,6 +69,11 @@ asmlinkage void secondary_start_kernel(void);
extern void platform_secondary_init(unsigned int cpu);
/*
+ * Initialize cpu_possible map, and enable coherency
+ */
+extern void platform_smp_prepare_cpus(unsigned int);
+
+/*
* Initial data for bringing up a secondary CPU.
*/
struct secondary_data {
@@ -97,6 +98,6 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
/*
* show local interrupt info
*/
-extern void show_local_irqs(struct seq_file *);
+extern void show_local_irqs(struct seq_file *, int);
#endif /* ifndef __ASM_ARM_SMP_H */
diff --git a/arch/arm/include/asm/smp_mpidr.h b/arch/arm/include/asm/smp_mpidr.h
deleted file mode 100644
index 6a9307d64900..000000000000
--- a/arch/arm/include/asm/smp_mpidr.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef ASMARM_SMP_MIDR_H
-#define ASMARM_SMP_MIDR_H
-
-#define hard_smp_processor_id() \
- ({ \
- unsigned int cpunum; \
- __asm__("\n" \
- "1: mrc p15, 0, %0, c0, c0, 5\n" \
- " .pushsection \".alt.smp.init\", \"a\"\n"\
- " .long 1b\n" \
- " mov %0, #0\n" \
- " .popsection" \
- : "=r" (cpunum)); \
- cpunum &= 0x0F; \
- })
-
-#endif
diff --git a/arch/arm/include/asm/smp_twd.h b/arch/arm/include/asm/smp_twd.h
index 634f357be6bb..fed9981fba08 100644
--- a/arch/arm/include/asm/smp_twd.h
+++ b/arch/arm/include/asm/smp_twd.h
@@ -22,7 +22,6 @@ struct clock_event_device;
extern void __iomem *twd_base;
-void twd_timer_stop(void);
int twd_timer_ack(void);
void twd_timer_setup(struct clock_event_device *);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 16:24:25 +0000