summaryrefslogtreecommitdiff
path: root/arch/parisc/include
diff options
context:
space:
mode:
Diffstat (limited to 'arch/parisc/include')
-rw-r--r--arch/parisc/include/asm/assembly.h4
-rw-r--r--arch/parisc/include/asm/atomic.h27
-rw-r--r--arch/parisc/include/asm/bugs.h20
-rw-r--r--arch/parisc/include/asm/cacheflush.h4
-rw-r--r--arch/parisc/include/asm/fb.h20
-rw-r--r--arch/parisc/include/asm/irqflags.h5
-rw-r--r--arch/parisc/include/asm/pdc.h4
-rw-r--r--arch/parisc/include/asm/pgtable.h3
-rw-r--r--arch/parisc/include/asm/processor.h37
-rw-r--r--arch/parisc/include/asm/spinlock.h39
-rw-r--r--arch/parisc/include/asm/spinlock_types.h8
-rw-r--r--arch/parisc/include/uapi/asm/cachectl.h12
-rw-r--r--arch/parisc/include/uapi/asm/socket.h3
13 files changed, 126 insertions, 60 deletions
diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index 0f0d4a496fef..75677b526b2b 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -90,10 +90,6 @@
#include <asm/asmregs.h>
#include <asm/psw.h>
- sp = 30
- gp = 27
- ipsw = 22
-
/*
* We provide two versions of each macro to convert from physical
* to virtual and vice versa. The "_r1" versions take one argument
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index dd5a299ada69..d4f023887ff8 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -73,10 +73,6 @@ static __inline__ int arch_atomic_read(const atomic_t *v)
return READ_ONCE((v)->counter);
}
-/* exported interface */
-#define arch_atomic_cmpxchg(v, o, n) (arch_cmpxchg(&((v)->counter), (o), (n)))
-#define arch_atomic_xchg(v, new) (arch_xchg(&((v)->counter), new))
-
#define ATOMIC_OP(op, c_op) \
static __inline__ void arch_atomic_##op(int i, atomic_t *v) \
{ \
@@ -122,6 +118,11 @@ static __inline__ int arch_atomic_fetch_##op(int i, atomic_t *v) \
ATOMIC_OPS(add, +=)
ATOMIC_OPS(sub, -=)
+#define arch_atomic_add_return arch_atomic_add_return
+#define arch_atomic_sub_return arch_atomic_sub_return
+#define arch_atomic_fetch_add arch_atomic_fetch_add
+#define arch_atomic_fetch_sub arch_atomic_fetch_sub
+
#undef ATOMIC_OPS
#define ATOMIC_OPS(op, c_op) \
ATOMIC_OP(op, c_op) \
@@ -131,6 +132,10 @@ ATOMIC_OPS(and, &=)
ATOMIC_OPS(or, |=)
ATOMIC_OPS(xor, ^=)
+#define arch_atomic_fetch_and arch_atomic_fetch_and
+#define arch_atomic_fetch_or arch_atomic_fetch_or
+#define arch_atomic_fetch_xor arch_atomic_fetch_xor
+
#undef ATOMIC_OPS
#undef ATOMIC_FETCH_OP
#undef ATOMIC_OP_RETURN
@@ -185,6 +190,11 @@ static __inline__ s64 arch_atomic64_fetch_##op(s64 i, atomic64_t *v) \
ATOMIC64_OPS(add, +=)
ATOMIC64_OPS(sub, -=)
+#define arch_atomic64_add_return arch_atomic64_add_return
+#define arch_atomic64_sub_return arch_atomic64_sub_return
+#define arch_atomic64_fetch_add arch_atomic64_fetch_add
+#define arch_atomic64_fetch_sub arch_atomic64_fetch_sub
+
#undef ATOMIC64_OPS
#define ATOMIC64_OPS(op, c_op) \
ATOMIC64_OP(op, c_op) \
@@ -194,6 +204,10 @@ ATOMIC64_OPS(and, &=)
ATOMIC64_OPS(or, |=)
ATOMIC64_OPS(xor, ^=)
+#define arch_atomic64_fetch_and arch_atomic64_fetch_and
+#define arch_atomic64_fetch_or arch_atomic64_fetch_or
+#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
+
#undef ATOMIC64_OPS
#undef ATOMIC64_FETCH_OP
#undef ATOMIC64_OP_RETURN
@@ -218,11 +232,6 @@ arch_atomic64_read(const atomic64_t *v)
return READ_ONCE((v)->counter);
}
-/* exported interface */
-#define arch_atomic64_cmpxchg(v, o, n) \
- ((__typeof__((v)->counter))arch_cmpxchg(&((v)->counter), (o), (n)))
-#define arch_atomic64_xchg(v, new) (arch_xchg(&((v)->counter), new))
-
#endif /* !CONFIG_64BIT */
diff --git a/arch/parisc/include/asm/bugs.h b/arch/parisc/include/asm/bugs.h
deleted file mode 100644
index 0a7f9db6bd1c..000000000000
--- a/arch/parisc/include/asm/bugs.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * include/asm-parisc/bugs.h
- *
- * Copyright (C) 1999 Mike Shaver
- */
-
-/*
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- * void check_bugs(void);
- */
-
-#include <asm/processor.h>
-
-static inline void check_bugs(void)
-{
-// identify_cpu(&boot_cpu_data);
-}
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index 0bdee6724132..c8b6928cee1e 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -48,6 +48,10 @@ void flush_dcache_page(struct page *page);
#define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages)
#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages)
+#define flush_dcache_mmap_lock_irqsave(mapping, flags) \
+ xa_lock_irqsave(&mapping->i_pages, flags)
+#define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \
+ xa_unlock_irqrestore(&mapping->i_pages, flags)
#define flush_icache_page(vma,page) do { \
flush_kernel_dcache_page_addr(page_address(page)); \
diff --git a/arch/parisc/include/asm/fb.h b/arch/parisc/include/asm/fb.h
index 55d29c4f716e..658a8a7dc531 100644
--- a/arch/parisc/include/asm/fb.h
+++ b/arch/parisc/include/asm/fb.h
@@ -2,23 +2,13 @@
#ifndef _ASM_FB_H_
#define _ASM_FB_H_
-#include <linux/fb.h>
-#include <linux/fs.h>
-#include <asm/page.h>
+struct fb_info;
-static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
- unsigned long off)
-{
- pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
-}
-
-#if defined(CONFIG_FB_STI)
+#if defined(CONFIG_STI_CORE)
int fb_is_primary_device(struct fb_info *info);
-#else
-static inline int fb_is_primary_device(struct fb_info *info)
-{
- return 0;
-}
+#define fb_is_primary_device fb_is_primary_device
#endif
+#include <asm-generic/fb.h>
+
#endif /* _ASM_FB_H_ */
diff --git a/arch/parisc/include/asm/irqflags.h b/arch/parisc/include/asm/irqflags.h
index 38a19c0bac3a..00fd87724588 100644
--- a/arch/parisc/include/asm/irqflags.h
+++ b/arch/parisc/include/asm/irqflags.h
@@ -31,6 +31,11 @@ static inline unsigned long arch_local_irq_save(void)
static inline void arch_local_irq_restore(unsigned long flags)
{
+ /* warn if IRQs are on although they should be off */
+ if (IS_ENABLED(CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK))
+ if (arch_local_save_flags() & PSW_I)
+ asm volatile("break 6,6\n"); /* SPINLOCK_BREAK_INSN */
+
asm volatile("mtsm %0" : : "r" (flags) : "memory");
}
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 2b4fad8328e8..269b9a159f01 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -88,8 +88,8 @@ int pdc_iodc_print(const unsigned char *str, unsigned count);
void pdc_emergency_unlock(void);
int pdc_sti_call(unsigned long func, unsigned long flags,
- unsigned long inptr, unsigned long outputr,
- unsigned long glob_cfg);
+ unsigned long inptr, unsigned long outputr,
+ unsigned long glob_cfg, int do_call64);
int __pdc_cpu_rendezvous(void);
void pdc_cpu_rendezvous_lock(void);
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index e715df5385d6..5656395c95ee 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -472,9 +472,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
#define pte_same(A,B) (pte_val(A) == pte_val(B))
-struct seq_file;
-extern void arch_report_meminfo(struct seq_file *m);
-
#endif /* !__ASSEMBLY__ */
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index a608970b249a..e132b2819fc9 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -11,6 +11,7 @@
#ifndef __ASSEMBLY__
#include <linux/threads.h>
+#include <linux/irqreturn.h>
#include <asm/assembly.h>
#include <asm/prefetch.h>
@@ -291,6 +292,42 @@ extern void __noreturn toc_intr(struct pt_regs *regs);
extern void toc_handler(void);
extern unsigned int toc_handler_size;
extern unsigned int toc_handler_csum;
+extern void do_cpu_irq_mask(struct pt_regs *);
+extern irqreturn_t timer_interrupt(int, void *);
+extern irqreturn_t ipi_interrupt(int, void *);
+extern void start_cpu_itimer(void);
+extern void handle_interruption(int, struct pt_regs *);
+
+/* called from assembly code: */
+extern void start_parisc(void);
+extern void smp_callin(unsigned long);
+extern void sys_rt_sigreturn(struct pt_regs *, int);
+extern void do_notify_resume(struct pt_regs *, long);
+extern long do_syscall_trace_enter(struct pt_regs *);
+extern void do_syscall_trace_exit(struct pt_regs *);
+
+/* CPU startup and info */
+struct seq_file;
+extern void early_trap_init(void);
+extern void collect_boot_cpu_data(void);
+extern int show_cpuinfo (struct seq_file *m, void *v);
+
+/* driver code in driver/parisc */
+extern void gsc_init(void);
+extern void processor_init(void);
+extern void ccio_init(void);
+extern void hppb_init(void);
+extern void dino_init(void);
+extern void iosapic_init(void);
+extern void lba_init(void);
+extern void sba_init(void);
+extern void parisc_eisa_init(void);
+struct parisc_device;
+struct resource;
+extern void sba_distributed_lmmio(struct parisc_device *, struct resource *);
+extern void sba_directed_lmmio(struct parisc_device *, struct resource *);
+extern void lba_set_iregs(struct parisc_device *lba, u32 ibase, u32 imask);
+extern void ccio_cujo20_fixup(struct parisc_device *dev, u32 iovp);
#endif /* __ASSEMBLY__ */
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index a6e5d66a7656..edfcb9858bcb 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -7,10 +7,26 @@
#include <asm/processor.h>
#include <asm/spinlock_types.h>
+#define SPINLOCK_BREAK_INSN 0x0000c006 /* break 6,6 */
+
+static inline void arch_spin_val_check(int lock_val)
+{
+ if (IS_ENABLED(CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK))
+ asm volatile( "andcm,= %0,%1,%%r0\n"
+ ".word %2\n"
+ : : "r" (lock_val), "r" (__ARCH_SPIN_LOCK_UNLOCKED_VAL),
+ "i" (SPINLOCK_BREAK_INSN));
+}
+
static inline int arch_spin_is_locked(arch_spinlock_t *x)
{
- volatile unsigned int *a = __ldcw_align(x);
- return READ_ONCE(*a) == 0;
+ volatile unsigned int *a;
+ int lock_val;
+
+ a = __ldcw_align(x);
+ lock_val = READ_ONCE(*a);
+ arch_spin_val_check(lock_val);
+ return (lock_val == 0);
}
static inline void arch_spin_lock(arch_spinlock_t *x)
@@ -18,9 +34,18 @@ static inline void arch_spin_lock(arch_spinlock_t *x)
volatile unsigned int *a;
a = __ldcw_align(x);
- while (__ldcw(a) == 0)
+ do {
+ int lock_val_old;
+
+ lock_val_old = __ldcw(a);
+ arch_spin_val_check(lock_val_old);
+ if (lock_val_old)
+ return; /* got lock */
+
+ /* wait until we should try to get lock again */
while (*a == 0)
continue;
+ } while (1);
}
static inline void arch_spin_unlock(arch_spinlock_t *x)
@@ -29,15 +54,19 @@ static inline void arch_spin_unlock(arch_spinlock_t *x)
a = __ldcw_align(x);
/* Release with ordered store. */
- __asm__ __volatile__("stw,ma %0,0(%1)" : : "r"(1), "r"(a) : "memory");
+ __asm__ __volatile__("stw,ma %0,0(%1)"
+ : : "r"(__ARCH_SPIN_LOCK_UNLOCKED_VAL), "r"(a) : "memory");
}
static inline int arch_spin_trylock(arch_spinlock_t *x)
{
volatile unsigned int *a;
+ int lock_val;
a = __ldcw_align(x);
- return __ldcw(a) != 0;
+ lock_val = __ldcw(a);
+ arch_spin_val_check(lock_val);
+ return lock_val != 0;
}
/*
diff --git a/arch/parisc/include/asm/spinlock_types.h b/arch/parisc/include/asm/spinlock_types.h
index ca39ee350c3f..d65934079ebd 100644
--- a/arch/parisc/include/asm/spinlock_types.h
+++ b/arch/parisc/include/asm/spinlock_types.h
@@ -2,13 +2,17 @@
#ifndef __ASM_SPINLOCK_TYPES_H
#define __ASM_SPINLOCK_TYPES_H
+#define __ARCH_SPIN_LOCK_UNLOCKED_VAL 0x1a46
+
typedef struct {
#ifdef CONFIG_PA20
volatile unsigned int slock;
-# define __ARCH_SPIN_LOCK_UNLOCKED { 1 }
+# define __ARCH_SPIN_LOCK_UNLOCKED { __ARCH_SPIN_LOCK_UNLOCKED_VAL }
#else
volatile unsigned int lock[4];
-# define __ARCH_SPIN_LOCK_UNLOCKED { { 1, 1, 1, 1 } }
+# define __ARCH_SPIN_LOCK_UNLOCKED \
+ { { __ARCH_SPIN_LOCK_UNLOCKED_VAL, __ARCH_SPIN_LOCK_UNLOCKED_VAL, \
+ __ARCH_SPIN_LOCK_UNLOCKED_VAL, __ARCH_SPIN_LOCK_UNLOCKED_VAL } }
#endif
} arch_spinlock_t;
diff --git a/arch/parisc/include/uapi/asm/cachectl.h b/arch/parisc/include/uapi/asm/cachectl.h
new file mode 100644
index 000000000000..68d6b455498b
--- /dev/null
+++ b/arch/parisc/include/uapi/asm/cachectl.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_CACHECTL
+#define _ASM_CACHECTL
+
+/*
+ * Options for cacheflush system call
+ */
+#define ICACHE (1<<0) /* flush instruction cache */
+#define DCACHE (1<<1) /* writeback and flush data cache */
+#define BCACHE (ICACHE|DCACHE) /* flush both caches */
+
+#endif /* _ASM_CACHECTL */
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index f486d3dfb6bb..be264c2b1a11 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -129,6 +129,9 @@
#define SO_RCVMARK 0x4049
+#define SO_PASSPIDFD 0x404A
+#define SO_PEERPIDFD 0x404B
+
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-18 14:41:06 +0300