Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index 569ba9e..e5c9170 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+generated-y += syscall_table.h
generic-y += barrier.h
generic-y += bitops.h
generic-y += bug.h
@@ -16,15 +18,18 @@
generic-y += kdebug.h
generic-y += kmap_types.h
generic-y += kprobes.h
+generic-y += kvm_para.h
generic-y += linkage.h
generic-y += local.h
generic-y += local64.h
generic-y += mcs_spinlock.h
generic-y += mm-arch-hooks.h
+generic-y += mmiowb.h
generic-y += parport.h
generic-y += percpu.h
generic-y += preempt.h
generic-y += serial.h
+generic-y += shmparam.h
generic-y += syscalls.h
generic-y += topology.h
generic-y += trace_clock.h
diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h
index 3d2747d..1ab8677 100644
--- a/arch/microblaze/include/asm/flat.h
+++ b/arch/microblaze/include/asm/flat.h
@@ -13,11 +13,6 @@
#include <asm/unaligned.h>
-#define flat_argvp_envp_on_stack() 0
-#define flat_old_ram_flag(flags) (flags)
-#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
-#define flat_set_persistent(relval, p) 0
-
/*
* Microblaze works a little differently from other arches, because
* of the MICROBLAZE_64 reloc type. Here, a 32 bit address is split
@@ -33,7 +28,7 @@
*/
static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
- u32 *addr, u32 *persistent)
+ u32 *addr)
{
u32 *p = (__force u32 *)rp;
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
index 2572077..8c90357 100644
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -71,7 +71,7 @@
int ret = 0, cmp;
u32 prev;
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+ if (!access_ok(uaddr, sizeof(u32)))
return -EFAULT;
__asm__ __volatile__ ("1: lwx %1, %3, r0; \
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index c796813..86c95b2 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -40,7 +40,6 @@
extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
#define ioremap_nocache(addr, size) ioremap((addr), (size))
-#define ioremap_fullcache(addr, size) ioremap((addr), (size))
#define ioremap_wc(addr, size) ioremap((addr), (size))
#define ioremap_wt(addr, size) ioremap((addr), (size))
diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h
index cb5d397..171b40a 100644
--- a/arch/microblaze/include/asm/pci-bridge.h
+++ b/arch/microblaze/include/asm/pci-bridge.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_MICROBLAZE_PCI_BRIDGE_H
#define _ASM_MICROBLAZE_PCI_BRIDGE_H
#ifdef __KERNEL__
/*
- * 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.
*/
#include <linux/pci.h>
#include <linux/list.h>
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index 859c198..7c4dc5d 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -1,8 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
- * 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.
*
* Based on powerpc version
*/
@@ -69,8 +66,6 @@
unsigned long size,
pgprot_t prot);
-#define HAVE_ARCH_PCI_RESOURCE_TO_USER
-
/* This part of code was originally in xilinx-pci.h */
#ifdef CONFIG_PCI_XILINX
extern void __init xilinx_pci_init(void);
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index 7c89390..7ecb05b 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -21,83 +21,23 @@
#include <asm/cache.h>
#include <asm/pgtable.h>
-#define PGDIR_ORDER 0
-
-/*
- * This is handled very differently on MicroBlaze since out page tables
- * are all 0's and I want to be able to use these zero'd pages elsewhere
- * as well - it gives us quite a speedup.
- * -- Cort
- */
-extern struct pgtable_cache_struct {
- unsigned long *pgd_cache;
- unsigned long *pte_cache;
- unsigned long pgtable_cache_sz;
-} quicklists;
-
-#define pgd_quicklist (quicklists.pgd_cache)
-#define pmd_quicklist ((unsigned long *)0)
-#define pte_quicklist (quicklists.pte_cache)
-#define pgtable_cache_size (quicklists.pgtable_cache_sz)
-
-extern unsigned long *zero_cache; /* head linked list of pre-zero'd pages */
-extern atomic_t zero_sz; /* # currently pre-zero'd pages */
-extern atomic_t zeropage_hits; /* # zero'd pages request that we've done */
-extern atomic_t zeropage_calls; /* # zero'd pages request that've been made */
-extern atomic_t zerototal; /* # pages zero'd over time */
-
-#define zero_quicklist (zero_cache)
-#define zero_cache_sz (zero_sz)
-#define zero_cache_calls (zeropage_calls)
-#define zero_cache_hits (zeropage_hits)
-#define zero_cache_total (zerototal)
-
-/*
- * return a pre-zero'd page from the list,
- * return NULL if none available -- Cort
- */
-extern unsigned long get_zero_page_fast(void);
+#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL
+#include <asm-generic/pgalloc.h>
extern void __bad_pte(pmd_t *pmd);
-static inline pgd_t *get_pgd_slow(void)
+static inline pgd_t *get_pgd(void)
{
- pgd_t *ret;
-
- ret = (pgd_t *)__get_free_pages(GFP_KERNEL, PGDIR_ORDER);
- if (ret != NULL)
- clear_page(ret);
- return ret;
+ return (pgd_t *)__get_free_pages(GFP_KERNEL|__GFP_ZERO, 0);
}
-static inline pgd_t *get_pgd_fast(void)
-{
- unsigned long *ret;
-
- ret = pgd_quicklist;
- if (ret != NULL) {
- pgd_quicklist = (unsigned long *)(*ret);
- ret[0] = 0;
- pgtable_cache_size--;
- } else
- ret = (unsigned long *)get_pgd_slow();
- return (pgd_t *)ret;
-}
-
-static inline void free_pgd_fast(pgd_t *pgd)
-{
- *(unsigned long **)pgd = pgd_quicklist;
- pgd_quicklist = (unsigned long *) pgd;
- pgtable_cache_size++;
-}
-
-static inline void free_pgd_slow(pgd_t *pgd)
+static inline void free_pgd(pgd_t *pgd)
{
free_page((unsigned long)pgd);
}
-#define pgd_free(mm, pgd) free_pgd_fast(pgd)
-#define pgd_alloc(mm) get_pgd_fast()
+#define pgd_free(mm, pgd) free_pgd(pgd)
+#define pgd_alloc(mm) get_pgd()
#define pmd_pgtable(pmd) pmd_page(pmd)
@@ -108,66 +48,7 @@
#define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
#define pmd_alloc_one(mm, address) ({ BUG(); ((pmd_t *)2); })
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
-
-static inline struct page *pte_alloc_one(struct mm_struct *mm,
- unsigned long address)
-{
- struct page *ptepage;
-
-#ifdef CONFIG_HIGHPTE
- int flags = GFP_KERNEL | __GFP_HIGHMEM;
-#else
- int flags = GFP_KERNEL;
-#endif
-
- ptepage = alloc_pages(flags, 0);
- if (!ptepage)
- return NULL;
- clear_highpage(ptepage);
- if (!pgtable_page_ctor(ptepage)) {
- __free_page(ptepage);
- return NULL;
- }
- return ptepage;
-}
-
-static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm,
- unsigned long address)
-{
- unsigned long *ret;
-
- ret = pte_quicklist;
- if (ret != NULL) {
- pte_quicklist = (unsigned long *)(*ret);
- ret[0] = 0;
- pgtable_cache_size--;
- }
- return (pte_t *)ret;
-}
-
-static inline void pte_free_fast(pte_t *pte)
-{
- *(unsigned long **)pte = pte_quicklist;
- pte_quicklist = (unsigned long *) pte;
- pgtable_cache_size++;
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free_slow(struct page *ptepage)
-{
- __free_page(ptepage);
-}
-
-static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
-{
- pgtable_page_dtor(ptepage);
- __free_page(ptepage);
-}
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, (pte))
@@ -186,10 +67,6 @@
#define __pmd_free_tlb(tlb, x, addr) pmd_free((tlb)->mm, x)
#define pgd_populate(mm, pmd, pte) BUG()
-extern int do_check_pgt_cache(int, int);
-
#endif /* CONFIG_MMU */
-#define check_pgt_cache() do { } while (0)
-
#endif /* _ASM_MICROBLAZE_PGALLOC_H */
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index 2ca5985..954b69a 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -46,8 +46,6 @@
#define swapper_pg_dir ((pgd_t *) NULL)
-#define pgtable_cache_init() do {} while (0)
-
#define arch_enter_lazy_cpu_mode() do {} while (0)
#define pgprot_noncached_wc(prot) prot
@@ -200,7 +198,7 @@
* is cleared in the TLB miss handler before the TLB entry is loaded.
* - All other bits of the PTE are loaded into TLBLO without
* * modification, leaving us only the bits 20, 21, 24, 25, 26, 30 for
- * software PTE bits. We actually use use bits 21, 24, 25, and
+ * software PTE bits. We actually use bits 21, 24, 25, and
* 30 respectively for the software bits: ACCESSED, DIRTY, RW, and
* PRESENT.
*/
@@ -526,11 +524,6 @@
/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
#define kern_addr_valid(addr) (1)
-/*
- * No page table caches to initialise
- */
-#define pgtable_cache_init() do { } while (0)
-
void do_page_fault(struct pt_regs *regs, unsigned long address,
unsigned long error_code);
@@ -553,8 +546,6 @@
extern unsigned long ioremap_bot, ioremap_base;
-unsigned long consistent_virt_to_pfn(void *vaddr);
-
void setup_memory(void);
#endif /* __ASSEMBLY__ */
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index 330d556..66b537b 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -46,12 +46,6 @@
# define TASK_SIZE (0x81000000 - 0x80000000)
/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-# define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
-/*
* This decides where the kernel will search for a free chunk of vm
* space during mmap's. We won't be using it
*/
@@ -92,12 +86,6 @@
# ifndef __ASSEMBLY__
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-# define current_text_addr() ({ __label__ _l; _l: &&_l; })
-
/* If you change this, you must change the associated assembly-languages
* constants defined below, THREAD_*.
*/
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 220decd..3a6924f 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -82,18 +82,22 @@
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
- unsigned int i, unsigned int n,
unsigned long *args)
{
+ unsigned int i = 0;
+ unsigned int n = 6;
+
while (n--)
*args++ = microblaze_get_syscall_arg(regs, i++);
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
- unsigned int i, unsigned int n,
const unsigned long *args)
{
+ unsigned int i = 0;
+ unsigned int n = 6;
+
while (n--)
microblaze_set_syscall_arg(regs, i++, *args++);
}
@@ -101,7 +105,7 @@
asmlinkage unsigned long do_syscall_trace_enter(struct pt_regs *regs);
asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
-static inline int syscall_get_arch(void)
+static inline int syscall_get_arch(struct task_struct *task)
{
return AUDIT_ARCH_MICROBLAZE;
}
diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h
index 99b6ded..628a78e 100644
--- a/arch/microblaze/include/asm/tlb.h
+++ b/arch/microblaze/include/asm/tlb.h
@@ -11,16 +11,7 @@
#ifndef _ASM_MICROBLAZE_TLB_H
#define _ASM_MICROBLAZE_TLB_H
-#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
-
#include <linux/pagemap.h>
-
-#ifdef CONFIG_MMU
-#define tlb_start_vma(tlb, vma) do { } while (0)
-#define tlb_end_vma(tlb, vma) do { } while (0)
-#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
-#endif
-
#include <asm-generic/tlb.h>
#endif /* _ASM_MICROBLAZE_TLB_H */
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index 81f16aa..a1f206b 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -42,7 +42,6 @@
# define USER_DS MAKE_MM_SEG(TASK_SIZE - 1)
# endif
-# define get_ds() (KERNEL_DS)
# define get_fs() (current_thread_info()->addr_limit)
# define set_fs(val) (current_thread_info()->addr_limit = (val))
@@ -60,26 +59,25 @@
#define __range_ok(addr, size) \
___range_ok((unsigned long)(addr), (unsigned long)(size))
-#define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0)
+#define access_ok(addr, size) (__range_ok((addr), (size)) == 0)
#else
-static inline int access_ok(int type, const void __user *addr,
- unsigned long size)
+static inline int access_ok(const void __user *addr, unsigned long size)
{
if (!size)
goto ok;
if ((get_fs().seg < ((unsigned long)addr)) ||
(get_fs().seg < ((unsigned long)addr + size - 1))) {
- pr_devel("ACCESS fail: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
- type ? "WRITE" : "READ ", (__force u32)addr, (u32)size,
+ pr_devel("ACCESS fail at 0x%08x (size 0x%x), seg 0x%08x\n",
+ (__force u32)addr, (u32)size,
(u32)get_fs().seg);
return 0;
}
ok:
- pr_devel("ACCESS OK: %s at 0x%08x (size 0x%x), seg 0x%08x\n",
- type ? "WRITE" : "READ ", (__force u32)addr, (u32)size,
+ pr_devel("ACCESS OK at 0x%08x (size 0x%x), seg 0x%08x\n",
+ (__force u32)addr, (u32)size,
(u32)get_fs().seg);
return 1;
}
@@ -120,7 +118,7 @@
unsigned long n)
{
might_fault();
- if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
+ if (unlikely(!access_ok(to, n)))
return n;
return __clear_user(to, n);
@@ -165,44 +163,15 @@
* Returns zero on success, or -EFAULT on error.
* On error, the variable @x is set to zero.
*/
-#define get_user(x, ptr) \
- __get_user_check((x), (ptr), sizeof(*(ptr)))
-
-#define __get_user_check(x, ptr, size) \
-({ \
- unsigned long __gu_val = 0; \
- const typeof(*(ptr)) __user *__gu_addr = (ptr); \
- int __gu_err = 0; \
- \
- if (access_ok(VERIFY_READ, __gu_addr, size)) { \
- switch (size) { \
- case 1: \
- __get_user_asm("lbu", __gu_addr, __gu_val, \
- __gu_err); \
- break; \
- case 2: \
- __get_user_asm("lhu", __gu_addr, __gu_val, \
- __gu_err); \
- break; \
- case 4: \
- __get_user_asm("lw", __gu_addr, __gu_val, \
- __gu_err); \
- break; \
- default: \
- __gu_err = __user_bad(); \
- break; \
- } \
- } else { \
- __gu_err = -EFAULT; \
- } \
- x = (__force typeof(*(ptr)))__gu_val; \
- __gu_err; \
+#define get_user(x, ptr) ({ \
+ const typeof(*(ptr)) __user *__gu_ptr = (ptr); \
+ access_ok(__gu_ptr, sizeof(*__gu_ptr)) ? \
+ __get_user(x, __gu_ptr) : -EFAULT; \
})
#define __get_user(x, ptr) \
({ \
unsigned long __gu_val = 0; \
- /*unsigned long __gu_ptr = (unsigned long)(ptr);*/ \
long __gu_err; \
switch (sizeof(*(ptr))) { \
case 1: \
@@ -214,6 +183,11 @@
case 4: \
__get_user_asm("lw", (ptr), __gu_val, __gu_err); \
break; \
+ case 8: \
+ __gu_err = __copy_from_user(&__gu_val, ptr, 8); \
+ if (__gu_err) \
+ __gu_err = -EFAULT; \
+ break; \
default: \
/* __gu_val = 0; __gu_err = -EINVAL;*/ __gu_err = __user_bad();\
} \
@@ -286,7 +260,7 @@
typeof(*(ptr)) __user *__pu_addr = (ptr); \
int __pu_err = 0; \
\
- if (access_ok(VERIFY_WRITE, __pu_addr, size)) { \
+ if (access_ok(__pu_addr, size)) { \
switch (size) { \
case 1: \
__put_user_asm("sb", __pu_addr, __pu_val, \
@@ -358,7 +332,7 @@
static inline long
strncpy_from_user(char *dst, const char __user *src, long count)
{
- if (!access_ok(VERIFY_READ, src, 1))
+ if (!access_ok(src, 1))
return -EFAULT;
return __strncpy_user(dst, src, count);
}
@@ -372,7 +346,7 @@
static inline long strnlen_user(const char __user *src, long n)
{
- if (!access_ok(VERIFY_READ, src, 1))
+ if (!access_ok(src, 1))
return 0;
return __strnlen_user(src, n);
}
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index a62d094..d79d35a 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -15,18 +15,18 @@
/* #define __ARCH_WANT_OLD_READDIR */
/* #define __ARCH_WANT_OLD_STAT */
+#define __ARCH_WANT_NEW_STAT
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_PAUSE
#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
+#define __ARCH_WANT_SYS_TIME32
+#define __ARCH_WANT_SYS_UTIME32
#define __ARCH_WANT_SYS_WAITPID
#define __ARCH_WANT_SYS_SOCKETCALL
#define __ARCH_WANT_SYS_FADVISE64
#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
#define __ARCH_WANT_SYS_NICE
/* #define __ARCH_WANT_SYS_OLD_GETRLIMIT */
#define __ARCH_WANT_SYS_OLDUMOUNT
@@ -38,6 +38,4 @@
#endif /* __ASSEMBLY__ */
-#define __NR_syscalls 401
-
#endif /* _ASM_MICROBLAZE_UNISTD_H */