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-rw-r--r--arch/mips/include/asm/asmmacro.h16
-rw-r--r--arch/mips/include/asm/bitops.h1
-rw-r--r--arch/mips/include/asm/cmpxchg.h2
-rw-r--r--arch/mips/include/asm/compat-signal.h37
-rw-r--r--arch/mips/include/asm/dma-mapping.h3
-rw-r--r--arch/mips/include/asm/mipsregs.h14
-rw-r--r--arch/mips/include/asm/octeon/cvmx-fpa.h4
-rw-r--r--arch/mips/include/asm/octeon/cvmx.h15
-rw-r--r--arch/mips/include/asm/page.h4
-rw-r--r--arch/mips/include/asm/pci.h4
-rw-r--r--arch/mips/include/asm/pgtable-64.h8
-rw-r--r--arch/mips/include/asm/processor.h2
-rw-r--r--arch/mips/include/asm/smp.h2
-rw-r--r--arch/mips/include/asm/syscall.h29
14 files changed, 56 insertions, 85 deletions
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index 83054f79f72a..feb069cbf44e 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -19,6 +19,9 @@
#include <asm/asmmacro-64.h>
#endif
+/* preprocessor replaces the fp in ".set fp=64" with $30 otherwise */
+#undef fp
+
/*
* Helper macros for generating raw instruction encodings.
*/
@@ -105,6 +108,7 @@
.macro fpu_save_16odd thread
.set push
.set mips64r2
+ .set fp=64
SET_HARDFLOAT
sdc1 $f1, THREAD_FPR1(\thread)
sdc1 $f3, THREAD_FPR3(\thread)
@@ -126,8 +130,8 @@
.endm
.macro fpu_save_double thread status tmp
-#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
- defined(CONFIG_CPU_MIPS32_R6)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPSR2) || \
+ defined(CONFIG_CPU_MIPSR6)
sll \tmp, \status, 5
bgez \tmp, 10f
fpu_save_16odd \thread
@@ -163,6 +167,7 @@
.macro fpu_restore_16odd thread
.set push
.set mips64r2
+ .set fp=64
SET_HARDFLOAT
ldc1 $f1, THREAD_FPR1(\thread)
ldc1 $f3, THREAD_FPR3(\thread)
@@ -184,8 +189,8 @@
.endm
.macro fpu_restore_double thread status tmp
-#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
- defined(CONFIG_CPU_MIPS32_R6)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPSR2) || \
+ defined(CONFIG_CPU_MIPSR6)
sll \tmp, \status, 5
bgez \tmp, 10f # 16 register mode?
@@ -234,9 +239,6 @@
.endm
#ifdef TOOLCHAIN_SUPPORTS_MSA
-/* preprocessor replaces the fp in ".set fp=64" with $30 otherwise */
-#undef fp
-
.macro _cfcmsa rd, cs
.set push
.set mips32r2
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index fa57cef12a46..da1b8718861e 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -456,6 +456,7 @@ static inline void __clear_bit_unlock(unsigned long nr, volatile unsigned long *
{
smp_mb__before_llsc();
__clear_bit(nr, addr);
+ nudge_writes();
}
/*
diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h
index 7e25c5cc353a..89e9fb7976fe 100644
--- a/arch/mips/include/asm/cmpxchg.h
+++ b/arch/mips/include/asm/cmpxchg.h
@@ -204,8 +204,10 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
#else
#include <asm-generic/cmpxchg-local.h>
#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#ifndef CONFIG_SMP
#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n))
#endif
+#endif
#undef __scbeqz
diff --git a/arch/mips/include/asm/compat-signal.h b/arch/mips/include/asm/compat-signal.h
index e87cd243b0f4..c3b7a2550d1d 100644
--- a/arch/mips/include/asm/compat-signal.h
+++ b/arch/mips/include/asm/compat-signal.h
@@ -14,45 +14,16 @@
static inline int __copy_conv_sigset_to_user(compat_sigset_t __user *d,
const sigset_t *s)
{
- int err;
+ BUILD_BUG_ON(sizeof(*d) != sizeof(*s));
+ BUILD_BUG_ON(_NSIG_WORDS != 2);
- BUG_ON(sizeof(*d) != sizeof(*s));
- BUG_ON(_NSIG_WORDS != 2);
-
- err = __put_user(s->sig[0], &d->sig[0]);
- err |= __put_user(s->sig[0] >> 32, &d->sig[1]);
- err |= __put_user(s->sig[1], &d->sig[2]);
- err |= __put_user(s->sig[1] >> 32, &d->sig[3]);
-
- return err;
+ return put_compat_sigset(d, s, sizeof(*d));
}
static inline int __copy_conv_sigset_from_user(sigset_t *d,
const compat_sigset_t __user *s)
{
- int err;
- union sigset_u {
- sigset_t s;
- compat_sigset_t c;
- } *u = (union sigset_u *) d;
-
- BUG_ON(sizeof(*d) != sizeof(*s));
- BUG_ON(_NSIG_WORDS != 2);
-
-#ifdef CONFIG_CPU_BIG_ENDIAN
- err = __get_user(u->c.sig[1], &s->sig[0]);
- err |= __get_user(u->c.sig[0], &s->sig[1]);
- err |= __get_user(u->c.sig[3], &s->sig[2]);
- err |= __get_user(u->c.sig[2], &s->sig[3]);
-#endif
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
- err = __get_user(u->c.sig[0], &s->sig[0]);
- err |= __get_user(u->c.sig[1], &s->sig[1]);
- err |= __get_user(u->c.sig[2], &s->sig[2]);
- err |= __get_user(u->c.sig[3], &s->sig[3]);
-#endif
-
- return err;
+ return get_compat_sigset(d, s);
}
#endif /* __ASM_COMPAT_SIGNAL_H */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 42f8cbad6c23..0d9418d264f9 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -27,9 +27,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
static inline void dma_mark_clean(void *addr, size_t size) {}
-extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
- enum dma_data_direction direction);
-
#define arch_setup_dma_ops arch_setup_dma_ops
static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
u64 size, const struct iommu_ops *iommu,
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index a6810923b3f0..6b1f1ad0542c 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -1355,19 +1355,17 @@ do { \
if (sel == 0) \
__asm__ __volatile__( \
".set\tmips64\n\t" \
- "dmfc0\t%M0, " #source "\n\t" \
- "dsll\t%L0, %M0, 32\n\t" \
- "dsra\t%M0, %M0, 32\n\t" \
- "dsra\t%L0, %L0, 32\n\t" \
+ "dmfc0\t%L0, " #source "\n\t" \
+ "dsra\t%M0, %L0, 32\n\t" \
+ "sll\t%L0, %L0, 0\n\t" \
".set\tmips0" \
: "=r" (__val)); \
else \
__asm__ __volatile__( \
".set\tmips64\n\t" \
- "dmfc0\t%M0, " #source ", " #sel "\n\t" \
- "dsll\t%L0, %M0, 32\n\t" \
- "dsra\t%M0, %M0, 32\n\t" \
- "dsra\t%L0, %L0, 32\n\t" \
+ "dmfc0\t%L0, " #source ", " #sel "\n\t" \
+ "dsra\t%M0, %L0, 32\n\t" \
+ "sll\t%L0, %L0, 0\n\t" \
".set\tmips0" \
: "=r" (__val)); \
local_irq_restore(__flags); \
diff --git a/arch/mips/include/asm/octeon/cvmx-fpa.h b/arch/mips/include/asm/octeon/cvmx-fpa.h
index c00501d0f7ae..29ae63606ab4 100644
--- a/arch/mips/include/asm/octeon/cvmx-fpa.h
+++ b/arch/mips/include/asm/octeon/cvmx-fpa.h
@@ -36,6 +36,8 @@
#ifndef __CVMX_FPA_H__
#define __CVMX_FPA_H__
+#include <linux/delay.h>
+
#include <asm/octeon/cvmx-address.h>
#include <asm/octeon/cvmx-fpa-defs.h>
@@ -165,7 +167,7 @@ static inline void cvmx_fpa_enable(void)
}
/* Enforce a 10 cycle delay between config and enable */
- cvmx_wait(10);
+ __delay(10);
}
/* FIXME: CVMX_FPA_CTL_STATUS read is unmodelled */
diff --git a/arch/mips/include/asm/octeon/cvmx.h b/arch/mips/include/asm/octeon/cvmx.h
index 205ab2ce10f8..25854abc95f8 100644
--- a/arch/mips/include/asm/octeon/cvmx.h
+++ b/arch/mips/include/asm/octeon/cvmx.h
@@ -30,6 +30,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
+#include <linux/delay.h>
enum cvmx_mips_space {
CVMX_MIPS_SPACE_XKSEG = 3LL,
@@ -429,18 +430,6 @@ static inline uint64_t cvmx_get_cycle(void)
}
/**
- * Wait for the specified number of cycle
- *
- */
-static inline void cvmx_wait(uint64_t cycles)
-{
- uint64_t done = cvmx_get_cycle() + cycles;
-
- while (cvmx_get_cycle() < done)
- ; /* Spin */
-}
-
-/**
* Reads a chip global cycle counter. This counts CPU cycles since
* chip reset. The counter is 64 bit.
* This register does not exist on CN38XX pass 1 silicion
@@ -481,7 +470,7 @@ static inline uint64_t cvmx_get_cycle_global(void)
result = -1; \
break; \
} else \
- cvmx_wait(100); \
+ __delay(100); \
} \
} while (0); \
result; \
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index 5f987598054f..ad461216b5a1 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -240,8 +240,8 @@ static inline int pfn_valid(unsigned long pfn)
#endif
-#define virt_to_page(kaddr) pfn_to_page(PFN_DOWN(virt_to_phys((void *) \
- (kaddr))))
+#define virt_to_pfn(kaddr) PFN_DOWN(virt_to_phys((void *)(kaddr)))
+#define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr))
extern int __virt_addr_valid(const volatile void *kaddr);
#define virt_addr_valid(kaddr) \
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 52f551ee492d..2339f42f047a 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -106,8 +106,6 @@ extern unsigned long PCIBIOS_MIN_MEM;
#define PCIBIOS_MIN_CARDBUS_IO 0x4000
-extern void pcibios_set_master(struct pci_dev *dev);
-
#define HAVE_PCI_MMAP
#define ARCH_GENERIC_PCI_MMAP_RESOURCE
#define HAVE_ARCH_PCI_RESOURCE_TO_USER
@@ -123,8 +121,6 @@ extern void pcibios_set_master(struct pci_dev *dev);
#include <linux/string.h>
#include <asm/io.h>
-struct pci_dev;
-
/*
* The PCI address space does equal the physical memory address space.
* The networking and block device layers use this boolean for bounce
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index 67fe6dc5211c..0036ea0c7173 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -31,12 +31,7 @@
* tables. Each page table is also a single 4K page, giving 512 (==
* PTRS_PER_PTE) 8 byte ptes. Each pud entry is initialized to point to
* invalid_pmd_table, each pmd entry is initialized to point to
- * invalid_pte_table, each pte is initialized to 0. When memory is low,
- * and a pmd table or a page table allocation fails, empty_bad_pmd_table
- * and empty_bad_page_table is returned back to higher layer code, so
- * that the failure is recognized later on. Linux does not seem to
- * handle these failures very well though. The empty_bad_page_table has
- * invalid pte entries in it, to force page faults.
+ * invalid_pte_table, each pte is initialized to 0.
*
* Kernel mappings: kernel mappings are held in the swapper_pg_table.
* The layout is identical to userspace except it's indexed with the
@@ -175,7 +170,6 @@
printk("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e))
extern pte_t invalid_pte_table[PTRS_PER_PTE];
-extern pte_t empty_bad_page_table[PTRS_PER_PTE];
#ifndef __PAGETABLE_PUD_FOLDED
/*
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 95b8c471f572..af34afbc32d9 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -368,8 +368,6 @@ struct task_struct;
/* Free all resources held by a thread. */
#define release_thread(thread) do { } while(0)
-extern unsigned long thread_saved_pc(struct task_struct *tsk);
-
/*
* Do necessary setup to start up a newly executed thread.
*/
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index 9e494f8d9c03..88ebd83b3bf9 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -29,7 +29,7 @@ extern cpumask_t cpu_foreign_map[];
/* Map from cpu id to sequential logical cpu number. This will only
not be idempotent when cpus failed to come on-line. */
-extern int __cpu_number_map[NR_CPUS];
+extern int __cpu_number_map[CONFIG_MIPS_NR_CPU_NR_MAP];
#define cpu_number_map(cpu) __cpu_number_map[cpu]
/* The reverse map from sequential logical cpu number to cpu id. */
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 7c713025b23f..0170602a1e4e 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -26,12 +26,34 @@
#define __NR_syscall 4000
#endif
+static inline bool mips_syscall_is_indirect(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ /* O32 ABI syscall() - Either 64-bit with O32 or 32-bit */
+ return (IS_ENABLED(CONFIG_32BIT) ||
+ test_tsk_thread_flag(task, TIF_32BIT_REGS)) &&
+ (regs->regs[2] == __NR_syscall);
+}
+
static inline long syscall_get_nr(struct task_struct *task,
struct pt_regs *regs)
{
return current_thread_info()->syscall;
}
+static inline void mips_syscall_update_nr(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ /*
+ * v0 is the system call number, except for O32 ABI syscall(), where it
+ * ends up in a0.
+ */
+ if (mips_syscall_is_indirect(task, regs))
+ task_thread_info(task)->syscall = regs->regs[4];
+ else
+ task_thread_info(task)->syscall = regs->regs[2];
+}
+
static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
struct task_struct *task, struct pt_regs *regs, unsigned int n)
{
@@ -98,10 +120,9 @@ static inline void syscall_get_arguments(struct task_struct *task,
unsigned long *args)
{
int ret;
- /* O32 ABI syscall() - Either 64-bit with O32 or 32-bit */
- if ((IS_ENABLED(CONFIG_32BIT) ||
- test_tsk_thread_flag(task, TIF_32BIT_REGS)) &&
- (regs->regs[2] == __NR_syscall))
+
+ /* O32 ABI syscall() */
+ if (mips_syscall_is_indirect(task, regs))
i++;
while (n--)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 16:59:45 +0000