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-rw-r--r--arch/parisc/kernel/cache.c6
-rw-r--r--arch/parisc/kernel/entry.S3
-rw-r--r--arch/parisc/kernel/head.S1
-rw-r--r--arch/parisc/kernel/hpmc.S3
-rw-r--r--arch/parisc/kernel/pacache.S3
-rw-r--r--arch/parisc/kernel/parisc_ksyms.c3
-rw-r--r--arch/parisc/kernel/perf.c4
-rw-r--r--arch/parisc/kernel/perf_asm.S2
-rw-r--r--arch/parisc/kernel/real2.S13
-rw-r--r--arch/parisc/kernel/signal32.c4
-rw-r--r--arch/parisc/kernel/smp.c136
-rw-r--r--arch/parisc/kernel/syscall.S5
-rw-r--r--arch/parisc/kernel/vmlinux.lds.S2
13 files changed, 48 insertions, 137 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index e10d25d2d9c..5259d8c2067 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -51,12 +51,12 @@ static struct pdc_btlb_info btlb_info __read_mostly;
void
flush_data_cache(void)
{
- on_each_cpu(flush_data_cache_local, NULL, 1, 1);
+ on_each_cpu(flush_data_cache_local, NULL, 1);
}
void
flush_instruction_cache(void)
{
- on_each_cpu(flush_instruction_cache_local, NULL, 1, 1);
+ on_each_cpu(flush_instruction_cache_local, NULL, 1);
}
#endif
@@ -515,7 +515,7 @@ static void cacheflush_h_tmp_function(void *dummy)
void flush_cache_all(void)
{
- on_each_cpu(cacheflush_h_tmp_function, NULL, 1, 1);
+ on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
}
void flush_cache_mm(struct mm_struct *mm)
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 5d0837458c1..d1fa4edd2d8 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -38,7 +38,6 @@
#include <asm/thread_info.h>
#include <linux/linkage.h>
-#include <linux/init.h>
#ifdef CONFIG_64BIT
.level 2.0w
@@ -622,7 +621,7 @@
* the static part of the kernel address space.
*/
- __HEAD
+ .text
.align PAGE_SIZE
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index 5680a2c3b13..a84e31e8287 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -33,6 +33,7 @@ ENTRY(boot_args)
END(boot_args)
__HEAD
+
.align 4
.import init_thread_union,data
.import fault_vector_20,code /* IVA parisc 2.0 32 bit */
diff --git a/arch/parisc/kernel/hpmc.S b/arch/parisc/kernel/hpmc.S
index 068322eb8c9..2cbf13b3ef1 100644
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -47,7 +47,6 @@
#include <asm/pdc.h>
#include <linux/linkage.h>
-#include <linux/init.h>
/*
* stack for os_hpmc, the HPMC handler.
@@ -77,7 +76,7 @@ ENTRY(hpmc_pim_data)
.block HPMC_PIM_DATA_SIZE
END(hpmc_pim_data)
- __HEAD
+ .text
.import intr_save, code
ENTRY(os_hpmc)
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index e3246a5ca74..09b77b2553c 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -37,9 +37,8 @@
#include <asm/pgtable.h>
#include <asm/cache.h>
#include <linux/linkage.h>
-#include <linux/init.h>
- __HEAD
+ .text
.align 128
ENTRY(flush_tlb_all_local)
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index 5b7fc4aa044..0eecfbbc59c 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -152,3 +152,6 @@ EXPORT_SYMBOL($$dyncall);
EXPORT_SYMBOL(node_data);
EXPORT_SYMBOL(pfnnid_map);
#endif
+
+/* from pacache.S -- needed for copy_page */
+EXPORT_SYMBOL(copy_user_page_asm);
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 89d6d5ad44b..f696f57faa1 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -46,6 +46,7 @@
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/miscdevice.h>
+#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <asm/uaccess.h>
@@ -260,13 +261,16 @@ printk("Preparing to start counters\n");
*/
static int perf_open(struct inode *inode, struct file *file)
{
+ lock_kernel();
spin_lock(&perf_lock);
if (perf_enabled) {
spin_unlock(&perf_lock);
+ unlock_kernel();
return -EBUSY;
}
perf_enabled = 1;
spin_unlock(&perf_lock);
+ unlock_kernel();
return 0;
}
diff --git a/arch/parisc/kernel/perf_asm.S b/arch/parisc/kernel/perf_asm.S
index d411dfb5b6d..fa6ea99bb32 100644
--- a/arch/parisc/kernel/perf_asm.S
+++ b/arch/parisc/kernel/perf_asm.S
@@ -43,7 +43,7 @@
; The coprocessor only needs to be enabled when
; starting/stopping the coprocessor with the pmenb/pmdis.
;
- __HEAD
+ .text
ENTRY(perf_intrigue_enable_perf_counters)
.proc
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 47fbdae6efd..7a92695d95a 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -12,7 +12,6 @@
#include <asm/assembly.h>
#include <linux/linkage.h>
-#include <linux/init.h>
.section .bss
.export real_stack
@@ -40,7 +39,7 @@ save_cr_end:
/************************ 32-bit real-mode calls ***********************/
/* This can be called in both narrow and wide kernels */
- __HEAD
+ .text
/* unsigned long real32_call_asm(unsigned int *sp,
* unsigned int *arg0p,
@@ -114,7 +113,7 @@ ENDPROC(real32_call_asm)
# define PUSH_CR(r, where) mfctl r, %r1 ! STREG,ma %r1, REG_SZ(where)
# define POP_CR(r, where) LDREG,mb -REG_SZ(where), %r1 ! mtctl %r1, r
- __HEAD
+ .text
save_control_regs:
load32 PA(save_cr_space), %r28
PUSH_CR(%cr24, %r28)
@@ -146,7 +145,7 @@ restore_control_regs:
/* rfi_virt2real() and rfi_real2virt() could perhaps be adapted for
* more general-purpose use by the several places which need RFIs
*/
- __HEAD
+ .text
.align 128
rfi_virt2real:
/* switch to real mode... */
@@ -181,7 +180,7 @@ rfi_v2r_1:
bv 0(%r2)
nop
- __HEAD
+ .text
.align 128
rfi_real2virt:
rsm PSW_SM_I,%r0
@@ -219,7 +218,7 @@ rfi_r2v_1:
/************************ 64-bit real-mode calls ***********************/
/* This is only usable in wide kernels right now and will probably stay so */
- __HEAD
+ .text
/* unsigned long real64_call_asm(unsigned long *sp,
* unsigned long *arg0p,
* unsigned long fn)
@@ -277,7 +276,7 @@ ENDPROC(real64_call_asm)
#endif
- __HEAD
+ .text
/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
** GCC 3.3 and later has a new function in libgcc.a for
** comparing function pointers.
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index db94affe5c7..fb59852006d 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -289,7 +289,7 @@ setup_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __
&sc->sc_iaoq[0], compat_reg);
/* Store upper half */
- compat_reg = (compat_uint_t)(regs->gr[32] >> 32);
+ compat_reg = (compat_uint_t)(regs->gr[31] >> 32);
err |= __put_user(compat_reg, &rf->rf_iaoq[0]);
DBG(2,"setup_sigcontext32: upper half iaoq[0] = %#x\n", compat_reg);
@@ -299,7 +299,7 @@ setup_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __
DBG(2,"setup_sigcontext32: sc->sc_iaoq[1] = %p <= %#x\n",
&sc->sc_iaoq[1], compat_reg);
/* Store upper half */
- compat_reg = (compat_uint_t)((regs->gr[32]+4) >> 32);
+ compat_reg = (compat_uint_t)((regs->gr[31]+4) >> 32);
err |= __put_user(compat_reg, &rf->rf_iaoq[1]);
DBG(2,"setup_sigcontext32: upper half iaoq[1] = %#x\n", compat_reg);
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 85fc7754ec2..d47f3975c9c 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -84,19 +84,11 @@ EXPORT_SYMBOL(cpu_possible_map);
DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
-struct smp_call_struct {
- void (*func) (void *info);
- void *info;
- long wait;
- atomic_t unstarted_count;
- atomic_t unfinished_count;
-};
-static volatile struct smp_call_struct *smp_call_function_data;
-
enum ipi_message_type {
IPI_NOP=0,
IPI_RESCHEDULE=1,
IPI_CALL_FUNC,
+ IPI_CALL_FUNC_SINGLE,
IPI_CPU_START,
IPI_CPU_STOP,
IPI_CPU_TEST
@@ -187,33 +179,12 @@ ipi_interrupt(int irq, void *dev_id)
case IPI_CALL_FUNC:
smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC\n", this_cpu);
- {
- volatile struct smp_call_struct *data;
- void (*func)(void *info);
- void *info;
- int wait;
-
- data = smp_call_function_data;
- func = data->func;
- info = data->info;
- wait = data->wait;
-
- mb();
- atomic_dec ((atomic_t *)&data->unstarted_count);
-
- /* At this point, *data can't
- * be relied upon.
- */
-
- (*func)(info);
-
- /* Notify the sending CPU that the
- * task is done.
- */
- mb();
- if (wait)
- atomic_dec ((atomic_t *)&data->unfinished_count);
- }
+ generic_smp_call_function_interrupt();
+ break;
+
+ case IPI_CALL_FUNC_SINGLE:
+ smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC_SINGLE\n", this_cpu);
+ generic_smp_call_function_single_interrupt();
break;
case IPI_CPU_START:
@@ -256,6 +227,14 @@ ipi_send(int cpu, enum ipi_message_type op)
spin_unlock_irqrestore(lock, flags);
}
+static void
+send_IPI_mask(cpumask_t mask, enum ipi_message_type op)
+{
+ int cpu;
+
+ for_each_cpu_mask(cpu, mask)
+ ipi_send(cpu, op);
+}
static inline void
send_IPI_single(int dest_cpu, enum ipi_message_type op)
@@ -295,86 +274,15 @@ smp_send_all_nop(void)
send_IPI_allbutself(IPI_NOP);
}
-
-/**
- * Run a function on all other CPUs.
- * <func> The function to run. This must be fast and non-blocking.
- * <info> An arbitrary pointer to pass to the function.
- * <retry> If true, keep retrying until ready.
- * <wait> If true, wait until function has completed on other CPUs.
- * [RETURNS] 0 on success, else a negative status code.
- *
- * Does not return until remote CPUs are nearly ready to execute <func>
- * or have executed.
- */
-
-int
-smp_call_function (void (*func) (void *info), void *info, int retry, int wait)
+void arch_send_call_function_ipi(cpumask_t mask)
{
- struct smp_call_struct data;
- unsigned long timeout;
- static DEFINE_SPINLOCK(lock);
- int retries = 0;
-
- if (num_online_cpus() < 2)
- return 0;
-
- /* Can deadlock when called with interrupts disabled */
- WARN_ON(irqs_disabled());
-
- /* can also deadlock if IPIs are disabled */
- WARN_ON((get_eiem() & (1UL<<(CPU_IRQ_MAX - IPI_IRQ))) == 0);
-
-
- data.func = func;
- data.info = info;
- data.wait = wait;
- atomic_set(&data.unstarted_count, num_online_cpus() - 1);
- atomic_set(&data.unfinished_count, num_online_cpus() - 1);
-
- if (retry) {
- spin_lock (&lock);
- while (smp_call_function_data != 0)
- barrier();
- }
- else {
- spin_lock (&lock);
- if (smp_call_function_data) {
- spin_unlock (&lock);
- return -EBUSY;
- }
- }
-
- smp_call_function_data = &data;
- spin_unlock (&lock);
-
- /* Send a message to all other CPUs and wait for them to respond */
- send_IPI_allbutself(IPI_CALL_FUNC);
-
- retry:
- /* Wait for response */
- timeout = jiffies + HZ;
- while ( (atomic_read (&data.unstarted_count) > 0) &&
- time_before (jiffies, timeout) )
- barrier ();
-
- if (atomic_read (&data.unstarted_count) > 0) {
- printk(KERN_CRIT "SMP CALL FUNCTION TIMED OUT! (cpu=%d), try %d\n",
- smp_processor_id(), ++retries);
- goto retry;
- }
- /* We either got one or timed out. Release the lock */
-
- mb();
- smp_call_function_data = NULL;
-
- while (wait && atomic_read (&data.unfinished_count) > 0)
- barrier ();
-
- return 0;
+ send_IPI_mask(mask, IPI_CALL_FUNC);
}
-EXPORT_SYMBOL(smp_call_function);
+void arch_send_call_function_single_ipi(int cpu)
+{
+ send_IPI_single(cpu, IPI_CALL_FUNC_SINGLE);
+}
/*
* Flush all other CPU's tlb and then mine. Do this with on_each_cpu()
@@ -384,7 +292,7 @@ EXPORT_SYMBOL(smp_call_function);
void
smp_flush_tlb_all(void)
{
- on_each_cpu(flush_tlb_all_local, NULL, 1, 1);
+ on_each_cpu(flush_tlb_all_local, NULL, 1);
}
/*
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index ae509d8cd03..69b6eebc466 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -17,7 +17,6 @@
#include <asm/processor.h>
#include <linux/linkage.h>
-#include <linux/init.h>
/* We fill the empty parts of the gateway page with
* something that will kill the kernel or a
@@ -27,7 +26,7 @@
.level LEVEL
- __HEAD
+ .text
.import syscall_exit,code
.import syscall_exit_rfi,code
@@ -637,7 +636,7 @@ END(sys_call_table64)
All light-weight-syscall atomic operations
will use this set of locks
*/
- .section .data, "aw"
+ .section .data
.align PAGE_SIZE
ENTRY(lws_lock_start)
/* lws locks */
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 50b4a3a25d0..1a3b6ccd362 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -50,6 +50,7 @@ SECTIONS
_text = .; /* Text and read-only data */
.text ALIGN(16) : {
+ HEAD_TEXT
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
@@ -66,7 +67,6 @@ SECTIONS
_etext = .;
RODATA
- BUG_TABLE
/* writeable */
/* Make sure this is page aligned so
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-20 08:22:00 +0000