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-rw-r--r--arch/mips/include/asm/page.h2
-rw-r--r--arch/mips/include/asm/pgtable.h4
-rw-r--r--arch/mips/include/asm/syscall.h4
-rw-r--r--arch/mips/loongson64/loongson-3/hpet.c10
-rw-r--r--arch/mips/loongson64/loongson-3/smp.c20
-rw-r--r--arch/mips/mm/tlbex.c2
6 files changed, 25 insertions, 17 deletions
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index 2046c0230..21ed7150f 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -33,7 +33,7 @@
#define PAGE_SHIFT 16
#endif
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE - 1))
+#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1))
/*
* This is used for calculating the real page sizes
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index 8957f15e2..18826aa15 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -353,7 +353,7 @@ static inline pte_t pte_mkdirty(pte_t pte)
static inline pte_t pte_mkyoung(pte_t pte)
{
pte_val(pte) |= _PAGE_ACCESSED;
-#ifdef CONFIG_CPU_MIPSR2
+#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
if (!(pte_val(pte) & _PAGE_NO_READ))
pte_val(pte) |= _PAGE_SILENT_READ;
else
@@ -560,7 +560,7 @@ static inline pmd_t pmd_mkyoung(pmd_t pmd)
{
pmd_val(pmd) |= _PAGE_ACCESSED;
-#ifdef CONFIG_CPU_MIPSR2
+#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
if (!(pmd_val(pmd) & _PAGE_NO_READ))
pmd_val(pmd) |= _PAGE_SILENT_READ;
else
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 6499d93ae..47bc45a67 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -101,10 +101,8 @@ static inline void syscall_get_arguments(struct task_struct *task,
/* O32 ABI syscall() - Either 64-bit with O32 or 32-bit */
if ((config_enabled(CONFIG_32BIT) ||
test_tsk_thread_flag(task, TIF_32BIT_REGS)) &&
- (regs->regs[2] == __NR_syscall)) {
+ (regs->regs[2] == __NR_syscall))
i++;
- n++;
- }
while (n--)
ret |= mips_get_syscall_arg(args++, task, regs, i++);
diff --git a/arch/mips/loongson64/loongson-3/hpet.c b/arch/mips/loongson64/loongson-3/hpet.c
index bf9f1a77f..a2631a52c 100644
--- a/arch/mips/loongson64/loongson-3/hpet.c
+++ b/arch/mips/loongson64/loongson-3/hpet.c
@@ -13,6 +13,9 @@
#define SMBUS_PCI_REG64 0x64
#define SMBUS_PCI_REGB4 0xb4
+#define HPET_MIN_CYCLES 64
+#define HPET_MIN_PROG_DELTA (HPET_MIN_CYCLES + (HPET_MIN_CYCLES >> 1))
+
static DEFINE_SPINLOCK(hpet_lock);
DEFINE_PER_CPU(struct clock_event_device, hpet_clockevent_device);
@@ -161,8 +164,9 @@ static int hpet_next_event(unsigned long delta,
cnt += delta;
hpet_write(HPET_T0_CMP, cnt);
- res = ((int)(hpet_read(HPET_COUNTER) - cnt) > 0) ? -ETIME : 0;
- return res;
+ res = (int)(cnt - hpet_read(HPET_COUNTER));
+
+ return res < HPET_MIN_CYCLES ? -ETIME : 0;
}
static irqreturn_t hpet_irq_handler(int irq, void *data)
@@ -237,7 +241,7 @@ void __init setup_hpet_timer(void)
cd->cpumask = cpumask_of(cpu);
clockevent_set_clock(cd, HPET_FREQ);
cd->max_delta_ns = clockevent_delta2ns(0x7fffffff, cd);
- cd->min_delta_ns = 5000;
+ cd->min_delta_ns = clockevent_delta2ns(HPET_MIN_PROG_DELTA, cd);
clockevents_register_device(cd);
setup_irq(HPET_T0_IRQ, &hpet_irq);
diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c
index 1a4738a8f..509832a98 100644
--- a/arch/mips/loongson64/loongson-3/smp.c
+++ b/arch/mips/loongson64/loongson-3/smp.c
@@ -30,13 +30,13 @@
#include "smp.h"
DEFINE_PER_CPU(int, cpu_state);
-DEFINE_PER_CPU(uint32_t, core0_c0count);
static void *ipi_set0_regs[16];
static void *ipi_clear0_regs[16];
static void *ipi_status0_regs[16];
static void *ipi_en0_regs[16];
static void *ipi_mailbox_buf[16];
+static uint32_t core0_c0count[NR_CPUS];
/* read a 32bit value from ipi register */
#define loongson3_ipi_read32(addr) readl(addr)
@@ -275,12 +275,14 @@ void loongson3_ipi_interrupt(struct pt_regs *regs)
if (action & SMP_ASK_C0COUNT) {
BUG_ON(cpu != 0);
c0count = read_c0_count();
- for (i = 1; i < num_possible_cpus(); i++)
- per_cpu(core0_c0count, i) = c0count;
+ c0count = c0count ? c0count : 1;
+ for (i = 1; i < nr_cpu_ids; i++)
+ core0_c0count[i] = c0count;
+ __wbflush(); /* Let others see the result ASAP */
}
}
-#define MAX_LOOPS 1111
+#define MAX_LOOPS 800
/*
* SMP init and finish on secondary CPUs
*/
@@ -305,16 +307,20 @@ static void loongson3_init_secondary(void)
cpu_logical_map(cpu) / loongson_sysconf.cores_per_package;
i = 0;
- __this_cpu_write(core0_c0count, 0);
+ core0_c0count[cpu] = 0;
loongson3_send_ipi_single(0, SMP_ASK_C0COUNT);
- while (!__this_cpu_read(core0_c0count)) {
+ while (!core0_c0count[cpu]) {
i++;
cpu_relax();
}
if (i > MAX_LOOPS)
i = MAX_LOOPS;
- initcount = __this_cpu_read(core0_c0count) + i;
+ if (cpu_data[cpu].package)
+ initcount = core0_c0count[cpu] + i;
+ else /* Local access is faster for loops */
+ initcount = core0_c0count[cpu] + i/2;
+
write_c0_count(initcount);
}
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 32e0be276..29f73e002 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -242,7 +242,7 @@ static void output_pgtable_bits_defines(void)
pr_define("_PAGE_HUGE_SHIFT %d\n", _PAGE_HUGE_SHIFT);
pr_define("_PAGE_SPLITTING_SHIFT %d\n", _PAGE_SPLITTING_SHIFT);
#endif
-#ifdef CONFIG_CPU_MIPSR2
+#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
if (cpu_has_rixi) {
#ifdef _PAGE_NO_EXEC_SHIFT
pr_define("_PAGE_NO_EXEC_SHIFT %d\n", _PAGE_NO_EXEC_SHIFT);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-05 06:10:33 +0000