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-rw-r--r--include/asm-frv/checksum.h2
-rw-r--r--include/asm-frv/kvm.h6
-rw-r--r--include/asm-frv/mem-layout.h9
-rw-r--r--include/asm-frv/pgtable.h21
-rw-r--r--include/asm-frv/semaphore.h156
-rw-r--r--include/asm-frv/spr-regs.h14
-rw-r--r--include/asm-frv/system.h30
-rw-r--r--include/asm-frv/topology.h4
-rw-r--r--include/asm-frv/types.h34
-rw-r--r--include/asm-frv/unaligned.h192
10 files changed, 72 insertions, 396 deletions
diff --git a/include/asm-frv/checksum.h b/include/asm-frv/checksum.h
index 9b168985018..269da09ff63 100644
--- a/include/asm-frv/checksum.h
+++ b/include/asm-frv/checksum.h
@@ -75,7 +75,7 @@ __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
: "=r" (sum), "=r" (iph), "=r" (ihl), "=r" (inc), "=&r"(tmp)
: "0" (sum), "1" (iph), "2" (ihl), "3" (4),
"m"(*(volatile struct { int _[100]; } *)iph)
- : "icc0", "icc1"
+ : "icc0", "icc1", "memory"
);
return (__force __sum16)~sum;
diff --git a/include/asm-frv/kvm.h b/include/asm-frv/kvm.h
new file mode 100644
index 00000000000..9c8a4f08d0a
--- /dev/null
+++ b/include/asm-frv/kvm.h
@@ -0,0 +1,6 @@
+#ifndef __LINUX_KVM_FRV_H
+#define __LINUX_KVM_FRV_H
+
+/* frv does not support KVM */
+
+#endif
diff --git a/include/asm-frv/mem-layout.h b/include/asm-frv/mem-layout.h
index 83532252b8b..2947764fc0e 100644
--- a/include/asm-frv/mem-layout.h
+++ b/include/asm-frv/mem-layout.h
@@ -31,6 +31,13 @@
#define PAGE_MASK (~(PAGE_SIZE-1))
+/*
+ * the slab must be aligned such that load- and store-double instructions don't
+ * fault if used
+ */
+#define ARCH_KMALLOC_MINALIGN 8
+#define ARCH_SLAB_MINALIGN 8
+
/*****************************************************************************/
/*
* virtual memory layout from kernel's point of view
@@ -60,7 +67,7 @@
*/
#define BRK_BASE __UL(2 * 1024 * 1024 + PAGE_SIZE)
#define STACK_TOP __UL(2 * 1024 * 1024)
-#define STACK_TOP_MAX STACK_TOP
+#define STACK_TOP_MAX __UL(0xc0000000)
/* userspace process size */
#ifdef CONFIG_MMU
diff --git a/include/asm-frv/pgtable.h b/include/asm-frv/pgtable.h
index 6c0682ed5fc..83c51aba534 100644
--- a/include/asm-frv/pgtable.h
+++ b/include/asm-frv/pgtable.h
@@ -380,6 +380,7 @@ static inline pmd_t *pmd_offset(pud_t *dir, unsigned long address)
static inline int pte_dirty(pte_t pte) { return (pte).pte & _PAGE_DIRTY; }
static inline int pte_young(pte_t pte) { return (pte).pte & _PAGE_ACCESSED; }
static inline int pte_write(pte_t pte) { return !((pte).pte & _PAGE_WP); }
+static inline int pte_special(pte_t pte) { return 0; }
static inline pte_t pte_mkclean(pte_t pte) { (pte).pte &= ~_PAGE_DIRTY; return pte; }
static inline pte_t pte_mkold(pte_t pte) { (pte).pte &= ~_PAGE_ACCESSED; return pte; }
@@ -387,6 +388,7 @@ static inline pte_t pte_wrprotect(pte_t pte) { (pte).pte |= _PAGE_WP; return pte
static inline pte_t pte_mkdirty(pte_t pte) { (pte).pte |= _PAGE_DIRTY; return pte; }
static inline pte_t pte_mkyoung(pte_t pte) { (pte).pte |= _PAGE_ACCESSED; return pte; }
static inline pte_t pte_mkwrite(pte_t pte) { (pte).pte &= ~_PAGE_WP; return pte; }
+static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep)
{
@@ -507,13 +509,22 @@ static inline int pte_file(pte_t pte)
*/
static inline void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
{
+ struct mm_struct *mm;
unsigned long ampr;
- pgd_t *pge = pgd_offset(current->mm, address);
- pud_t *pue = pud_offset(pge, address);
- pmd_t *pme = pmd_offset(pue, address);
- ampr = pme->ste[0] & 0xffffff00;
- ampr |= xAMPRx_L | xAMPRx_SS_16Kb | xAMPRx_S | xAMPRx_C | xAMPRx_V;
+ mm = current->mm;
+ if (mm) {
+ pgd_t *pge = pgd_offset(mm, address);
+ pud_t *pue = pud_offset(pge, address);
+ pmd_t *pme = pmd_offset(pue, address);
+
+ ampr = pme->ste[0] & 0xffffff00;
+ ampr |= xAMPRx_L | xAMPRx_SS_16Kb | xAMPRx_S | xAMPRx_C |
+ xAMPRx_V;
+ } else {
+ address = ULONG_MAX;
+ ampr = 0;
+ }
asm volatile("movgs %0,scr0\n"
"movgs %0,scr1\n"
diff --git a/include/asm-frv/semaphore.h b/include/asm-frv/semaphore.h
index d7aaa1911a1..d9b2034ed1d 100644
--- a/include/asm-frv/semaphore.h
+++ b/include/asm-frv/semaphore.h
@@ -1,155 +1 @@
-/* semaphore.h: semaphores for the FR-V
- *
- * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#ifndef _ASM_SEMAPHORE_H
-#define _ASM_SEMAPHORE_H
-
-#define RW_LOCK_BIAS 0x01000000
-
-#ifndef __ASSEMBLY__
-
-#include <linux/linkage.h>
-#include <linux/wait.h>
-#include <linux/spinlock.h>
-#include <linux/rwsem.h>
-
-/*
- * the semaphore definition
- * - if counter is >0 then there are tokens available on the semaphore for down to collect
- * - if counter is <=0 then there are no spare tokens, and anyone that wants one must wait
- * - if wait_list is not empty, then there are processes waiting for the semaphore
- */
-struct semaphore {
- unsigned counter;
- spinlock_t wait_lock;
- struct list_head wait_list;
-#ifdef CONFIG_DEBUG_SEMAPHORE
- unsigned __magic;
-#endif
-};
-
-#ifdef CONFIG_DEBUG_SEMAPHORE
-# define __SEM_DEBUG_INIT(name) , (long)&(name).__magic
-#else
-# define __SEM_DEBUG_INIT(name)
-#endif
-
-
-#define __SEMAPHORE_INITIALIZER(name,count) \
-{ count, SPIN_LOCK_UNLOCKED, LIST_HEAD_INIT((name).wait_list) __SEM_DEBUG_INIT(name) }
-
-#define __DECLARE_SEMAPHORE_GENERIC(name,count) \
- struct semaphore name = __SEMAPHORE_INITIALIZER(name,count)
-
-#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1)
-
-static inline void sema_init (struct semaphore *sem, int val)
-{
- *sem = (struct semaphore) __SEMAPHORE_INITIALIZER(*sem, val);
-}
-
-static inline void init_MUTEX (struct semaphore *sem)
-{
- sema_init(sem, 1);
-}
-
-static inline void init_MUTEX_LOCKED (struct semaphore *sem)
-{
- sema_init(sem, 0);
-}
-
-extern void __down(struct semaphore *sem, unsigned long flags);
-extern int __down_interruptible(struct semaphore *sem, unsigned long flags);
-extern void __up(struct semaphore *sem);
-
-static inline void down(struct semaphore *sem)
-{
- unsigned long flags;
-
-#ifdef CONFIG_DEBUG_SEMAPHORE
- CHECK_MAGIC(sem->__magic);
-#endif
-
- spin_lock_irqsave(&sem->wait_lock, flags);
- if (likely(sem->counter > 0)) {
- sem->counter--;
- spin_unlock_irqrestore(&sem->wait_lock, flags);
- }
- else {
- __down(sem, flags);
- }
-}
-
-static inline int down_interruptible(struct semaphore *sem)
-{
- unsigned long flags;
- int ret = 0;
-
-#ifdef CONFIG_DEBUG_SEMAPHORE
- CHECK_MAGIC(sem->__magic);
-#endif
-
- spin_lock_irqsave(&sem->wait_lock, flags);
- if (likely(sem->counter > 0)) {
- sem->counter--;
- spin_unlock_irqrestore(&sem->wait_lock, flags);
- }
- else {
- ret = __down_interruptible(sem, flags);
- }
- return ret;
-}
-
-/*
- * non-blockingly attempt to down() a semaphore.
- * - returns zero if we acquired it
- */
-static inline int down_trylock(struct semaphore *sem)
-{
- unsigned long flags;
- int success = 0;
-
-#ifdef CONFIG_DEBUG_SEMAPHORE
- CHECK_MAGIC(sem->__magic);
-#endif
-
- spin_lock_irqsave(&sem->wait_lock, flags);
- if (sem->counter > 0) {
- sem->counter--;
- success = 1;
- }
- spin_unlock_irqrestore(&sem->wait_lock, flags);
- return !success;
-}
-
-static inline void up(struct semaphore *sem)
-{
- unsigned long flags;
-
-#ifdef CONFIG_DEBUG_SEMAPHORE
- CHECK_MAGIC(sem->__magic);
-#endif
-
- spin_lock_irqsave(&sem->wait_lock, flags);
- if (!list_empty(&sem->wait_list))
- __up(sem);
- else
- sem->counter++;
- spin_unlock_irqrestore(&sem->wait_lock, flags);
-}
-
-static inline int sem_getcount(struct semaphore *sem)
-{
- return sem->counter;
-}
-
-#endif /* __ASSEMBLY__ */
-
-#endif
+#include <linux/semaphore.h>
diff --git a/include/asm-frv/spr-regs.h b/include/asm-frv/spr-regs.h
index c2a541ef828..01e6af5e99b 100644
--- a/include/asm-frv/spr-regs.h
+++ b/include/asm-frv/spr-regs.h
@@ -99,9 +99,23 @@
#define TBR_TT_TRAP1 (0x81 << 4)
#define TBR_TT_TRAP2 (0x82 << 4)
#define TBR_TT_TRAP3 (0x83 << 4)
+#define TBR_TT_TRAP120 (0xf8 << 4)
+#define TBR_TT_TRAP121 (0xf9 << 4)
+#define TBR_TT_TRAP122 (0xfa << 4)
+#define TBR_TT_TRAP123 (0xfb << 4)
+#define TBR_TT_TRAP124 (0xfc << 4)
+#define TBR_TT_TRAP125 (0xfd << 4)
#define TBR_TT_TRAP126 (0xfe << 4)
#define TBR_TT_BREAK (0xff << 4)
+#define TBR_TT_ATOMIC_CMPXCHG32 TBR_TT_TRAP120
+#define TBR_TT_ATOMIC_XCHG32 TBR_TT_TRAP121
+#define TBR_TT_ATOMIC_XOR TBR_TT_TRAP122
+#define TBR_TT_ATOMIC_OR TBR_TT_TRAP123
+#define TBR_TT_ATOMIC_AND TBR_TT_TRAP124
+#define TBR_TT_ATOMIC_SUB TBR_TT_TRAP125
+#define TBR_TT_ATOMIC_ADD TBR_TT_TRAP126
+
#define __get_TBR() ({ unsigned long x; asm volatile("movsg tbr,%0" : "=r"(x)); x; })
/*
diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h
index b400cea8148..d3a12a9079f 100644
--- a/include/asm-frv/system.h
+++ b/include/asm-frv/system.h
@@ -179,19 +179,23 @@ do { \
#define mb() asm volatile ("membar" : : :"memory")
#define rmb() asm volatile ("membar" : : :"memory")
#define wmb() asm volatile ("membar" : : :"memory")
-#define set_mb(var, value) do { var = value; mb(); } while (0)
+#define read_barrier_depends() do { } while (0)
-#define smp_mb() mb()
-#define smp_rmb() rmb()
-#define smp_wmb() wmb()
-
-#define read_barrier_depends() do {} while(0)
+#ifdef CONFIG_SMP
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
#define smp_read_barrier_depends() read_barrier_depends()
-
-#define HARD_RESET_NOW() \
-do { \
- cli(); \
-} while(1)
+#define set_mb(var, value) \
+ do { xchg(&var, (value)); } while (0)
+#else
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+#define smp_read_barrier_depends() do {} while(0)
+#define set_mb(var, value) \
+ do { var = (value); barrier(); } while (0)
+#endif
extern void die_if_kernel(const char *, ...) __attribute__((format(printf, 1, 2)));
extern void free_initmem(void);
@@ -234,7 +238,7 @@ extern void free_initmem(void);
break; \
\
default: \
- __xg_orig = 0; \
+ __xg_orig = (__typeof__(__xg_orig))0; \
asm volatile("break"); \
break; \
} \
@@ -259,7 +263,7 @@ extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new);
(__force uint32_t)__xg_test, \
(__force uint32_t)__xg_new); break; \
default: \
- __xg_orig = 0; \
+ __xg_orig = (__typeof__(__xg_orig))0; \
asm volatile("break"); \
break; \
} \
diff --git a/include/asm-frv/topology.h b/include/asm-frv/topology.h
index abe7298742a..94272435270 100644
--- a/include/asm-frv/topology.h
+++ b/include/asm-frv/topology.h
@@ -5,10 +5,8 @@
#error NUMA not supported yet
-#else /* !CONFIG_NUMA */
+#endif /* CONFIG_NUMA */
#include <asm-generic/topology.h>
-#endif /* CONFIG_NUMA */
-
#endif /* _ASM_TOPOLOGY_H */
diff --git a/include/asm-frv/types.h b/include/asm-frv/types.h
index 767e5ed71c4..613bf1e962f 100644
--- a/include/asm-frv/types.h
+++ b/include/asm-frv/types.h
@@ -12,29 +12,12 @@
#ifndef _ASM_TYPES_H
#define _ASM_TYPES_H
+#include <asm-generic/int-ll64.h>
+
#ifndef __ASSEMBLY__
typedef unsigned short umode_t;
-/*
- * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
- * header files exported to user space
- */
-
-typedef __signed__ char __s8;
-typedef unsigned char __u8;
-
-typedef __signed__ short __s16;
-typedef unsigned short __u16;
-
-typedef __signed__ int __s32;
-typedef unsigned int __u32;
-
-#if defined(__GNUC__)
-__extension__ typedef __signed__ long long __s64;
-__extension__ typedef unsigned long long __u64;
-#endif
-
#endif /* __ASSEMBLY__ */
/*
@@ -46,19 +29,6 @@ __extension__ typedef unsigned long long __u64;
#ifndef __ASSEMBLY__
-
-typedef signed char s8;
-typedef unsigned char u8;
-
-typedef signed short s16;
-typedef unsigned short u16;
-
-typedef signed int s32;
-typedef unsigned int u32;
-
-typedef signed long long s64;
-typedef unsigned long long u64;
-
/* Dma addresses are 32-bits wide. */
typedef u32 dma_addr_t;
diff --git a/include/asm-frv/unaligned.h b/include/asm-frv/unaligned.h
index dc8e9c9bf6b..839a2fbffa0 100644
--- a/include/asm-frv/unaligned.h
+++ b/include/asm-frv/unaligned.h
@@ -12,191 +12,11 @@
#ifndef _ASM_UNALIGNED_H
#define _ASM_UNALIGNED_H
+#include <linux/unaligned/le_byteshift.h>
+#include <linux/unaligned/be_byteshift.h>
+#include <linux/unaligned/generic.h>
-/*
- * Unaligned accesses on uClinux can't be performed in a fault handler - the
- * CPU detects them as imprecise exceptions making this impossible.
- *
- * With the FR451, however, they are precise, and so we used to fix them up in
- * the memory access fault handler. However, instruction bundling make this
- * impractical. So, now we fall back to using memcpy.
- */
-#ifdef CONFIG_MMU
-
-/*
- * The asm statement in the macros below is a way to get GCC to copy a
- * value from one variable to another without having any clue it's
- * actually doing so, so that it won't have any idea that the values
- * in the two variables are related.
- */
-
-#define get_unaligned(ptr) ({ \
- typeof((*(ptr))) __x; \
- void *__ptrcopy; \
- asm("" : "=r" (__ptrcopy) : "0" (ptr)); \
- memcpy(&__x, __ptrcopy, sizeof(*(ptr))); \
- __x; \
-})
-
-#define put_unaligned(val, ptr) ({ \
- typeof((*(ptr))) __x = (val); \
- void *__ptrcopy; \
- asm("" : "=r" (__ptrcopy) : "0" (ptr)); \
- memcpy(__ptrcopy, &__x, sizeof(*(ptr))); \
-})
-
-extern int handle_misalignment(unsigned long esr0, unsigned long ear0, unsigned long epcr0);
-
-#else
-
-#define get_unaligned(ptr) \
-({ \
- typeof(*(ptr)) x; \
- const char *__p = (const char *) (ptr); \
- \
- switch (sizeof(x)) { \
- case 1: \
- x = *(ptr); \
- break; \
- case 2: \
- { \
- uint8_t a; \
- asm(" ldub%I2 %M2,%0 \n" \
- " ldub%I3.p %M3,%1 \n" \
- " slli %0,#8,%0 \n" \
- " or %0,%1,%0 \n" \
- : "=&r"(x), "=&r"(a) \
- : "m"(__p[0]), "m"(__p[1]) \
- ); \
- break; \
- } \
- \
- case 4: \
- { \
- uint8_t a; \
- asm(" ldub%I2 %M2,%0 \n" \
- " ldub%I3.p %M3,%1 \n" \
- " slli %0,#8,%0 \n" \
- " or %0,%1,%0 \n" \
- " ldub%I4.p %M4,%1 \n" \
- " slli %0,#8,%0 \n" \
- " or %0,%1,%0 \n" \
- " ldub%I5.p %M5,%1 \n" \
- " slli %0,#8,%0 \n" \
- " or %0,%1,%0 \n" \
- : "=&r"(x), "=&r"(a) \
- : "m"(__p[0]), "m"(__p[1]), "m"(__p[2]), "m"(__p[3]) \
- ); \
- break; \
- } \
- \
- case 8: \
- { \
- union { uint64_t x; u32 y[2]; } z; \
- uint8_t a; \
- asm(" ldub%I3 %M3,%0 \n" \
- " ldub%I4.p %M4,%2 \n" \
- " slli %0,#8,%0 \n" \
- " or %0,%2,%0 \n" \
- " ldub%I5.p %M5,%2 \n" \
- " slli %0,#8,%0 \n" \
- " or %0,%2,%0 \n" \
- " ldub%I6.p %M6,%2 \n" \
- " slli %0,#8,%0 \n" \
- " or %0,%2,%0 \n" \
- " ldub%I7 %M7,%1 \n" \
- " ldub%I8.p %M8,%2 \n" \
- " slli %1,#8,%1 \n" \
- " or %1,%2,%1 \n" \
- " ldub%I9.p %M9,%2 \n" \
- " slli %1,#8,%1 \n" \
- " or %1,%2,%1 \n" \
- " ldub%I10.p %M10,%2 \n" \
- " slli %1,#8,%1 \n" \
- " or %1,%2,%1 \n" \
- : "=&r"(z.y[0]), "=&r"(z.y[1]), "=&r"(a) \
- : "m"(__p[0]), "m"(__p[1]), "m"(__p[2]), "m"(__p[3]), \
- "m"(__p[4]), "m"(__p[5]), "m"(__p[6]), "m"(__p[7]) \
- ); \
- x = z.x; \
- break; \
- } \
- \
- default: \
- x = 0; \
- BUG(); \
- break; \
- } \
- \
- x; \
-})
-
-#define put_unaligned(val, ptr) \
-do { \
- char *__p = (char *) (ptr); \
- int x; \
- \
- switch (sizeof(*ptr)) { \
- case 2: \
- { \
- asm(" stb%I1.p %0,%M1 \n" \
- " srli %0,#8,%0 \n" \
- " stb%I2 %0,%M2 \n" \
- : "=r"(x), "=m"(__p[1]), "=m"(__p[0]) \
- : "0"(val) \
- ); \
- break; \
- } \
- \
- case 4: \
- { \
- asm(" stb%I1.p %0,%M1 \n" \
- " srli %0,#8,%0 \n" \
- " stb%I2.p %0,%M2 \n" \
- " srli %0,#8,%0 \n" \
- " stb%I3.p %0,%M3 \n" \
- " srli %0,#8,%0 \n" \
- " stb%I4 %0,%M4 \n" \
- : "=r"(x), "=m"(__p[3]), "=m"(__p[2]), "=m"(__p[1]), "=m"(__p[0]) \
- : "0"(val) \
- ); \
- break; \
- } \
- \
- case 8: \
- { \
- uint32_t __high, __low; \
- __high = (uint64_t)val >> 32; \
- __low = val & 0xffffffff; \
- asm(" stb%I2.p %0,%M2 \n" \
- " srli %0,#8,%0 \n" \
- " stb%I3.p %0,%M3 \n" \
- " srli %0,#8,%0 \n" \
- " stb%I4.p %0,%M4 \n" \
- " srli %0,#8,%0 \n" \
- " stb%I5.p %0,%M5 \n" \
- " srli %0,#8,%0 \n" \
- " stb%I6.p %1,%M6 \n" \
- " srli %1,#8,%1 \n" \
- " stb%I7.p %1,%M7 \n" \
- " srli %1,#8,%1 \n" \
- " stb%I8.p %1,%M8 \n" \
- " srli %1,#8,%1 \n" \
- " stb%I9 %1,%M9 \n" \
- : "=&r"(__low), "=&r"(__high), "=m"(__p[7]), "=m"(__p[6]), \
- "=m"(__p[5]), "=m"(__p[4]), "=m"(__p[3]), "=m"(__p[2]), \
- "=m"(__p[1]), "=m"(__p[0]) \
- : "0"(__low), "1"(__high) \
- ); \
- break; \
- } \
- \
- default: \
- *(ptr) = (val); \
- break; \
- } \
-} while(0)
-
-#endif
+#define get_unaligned __get_unaligned_be
+#define put_unaligned __put_unaligned_be
-#endif
+#endif /* _ASM_UNALIGNED_H */
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-23 02:14:59 +0000