[PATCH] FRV: Miscellaneous fixes

From: David Howells
Date: Tue Feb 14 2006 - 09:44:51 EST

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The attached patch makes various alterations and fixes to the FRV arch:

(1) Resyncs the FRV system call collection with the i386 arch.

(2) Discards __iounmap() as it's not used.

(3) Fixes the use of the SWAP/SWAPI instruction to get the arguments the right
way around in atomic.h, and also to get the asm constraints correct.

(4) Moves copy_to/from_user_page() to asm/cacheflush.h to be consistent with
other archs.

Signed-Off-By: David Howells <dhowells@xxxxxxxxxx>
---
warthog>diffstat -p1 frv-2616rc2.diff
arch/frv/kernel/entry.S | 26 +++++++++++++++++++++-----
arch/frv/mm/kmap.c | 9 ---------
include/asm-frv/atomic.h | 6 +++---
include/asm-frv/cacheflush.h | 12 ++++++++++++
include/asm-frv/io.h | 1 -
include/asm-frv/uaccess.h | 3 ---
include/asm-frv/unistd.h | 28 ++++++++++++++++++++++------
7 files changed, 58 insertions(+), 27 deletions(-)

diff -uNrp linux-2.6.16-rc2/arch/frv/kernel/entry.S linux-2.6.16-rc2-frv/arch/frv/kernel/entry.S
--- linux-2.6.16-rc2/arch/frv/kernel/entry.S 2006-02-06 15:25:19.000000000 +0000
+++ linux-2.6.16-rc2-frv/arch/frv/kernel/entry.S 2006-02-07 18:37:39.000000000 +0000
@@ -1418,11 +1418,27 @@ sys_call_table:
.long sys_add_key
.long sys_request_key
.long sys_keyctl
- .long sys_ni_syscall // sys_vperfctr_open
- .long sys_ni_syscall // sys_vperfctr_control /* 290 */
- .long sys_ni_syscall // sys_vperfctr_unlink
- .long sys_ni_syscall // sys_vperfctr_iresume
- .long sys_ni_syscall // sys_vperfctr_read
+ .long sys_ioprio_set
+ .long sys_ioprio_get /* 290 */
+ .long sys_inotify_init
+ .long sys_inotify_add_watch
+ .long sys_inotify_rm_watch
+ .long sys_migrate_pages
+ .long sys_openat /* 295 */
+ .long sys_mkdirat
+ .long sys_mknodat
+ .long sys_fchownat
+ .long sys_futimesat
+ .long sys_newfstatat /* 300 */
+ .long sys_unlinkat
+ .long sys_renameat
+ .long sys_linkat
+ .long sys_symlinkat
+ .long sys_readlinkat /* 305 */
+ .long sys_fchmodat
+ .long sys_faccessat
+ .long sys_pselect6
+ .long sys_ppoll

syscall_table_size = (. - sys_call_table)
diff -uNrp linux-2.6.16-rc2/arch/frv/mm/kmap.c linux-2.6.16-rc2-frv/arch/frv/mm/kmap.c
--- linux-2.6.16-rc2/arch/frv/mm/kmap.c 2005-03-02 12:07:44.000000000 +0000
+++ linux-2.6.16-rc2-frv/arch/frv/mm/kmap.c 2006-02-07 20:42:49.000000000 +0000
@@ -44,15 +44,6 @@ void iounmap(void *addr)
}

/*
- * __iounmap unmaps nearly everything, so be careful
- * it doesn't free currently pointer/page tables anymore but it
- * wans't used anyway and might be added later.
- */
-void __iounmap(void *addr, unsigned long size)
-{
-}
-
-/*
* Set new cache mode for some kernel address space.
* The caller must push data for that range itself, if such data may already
* be in the cache.
diff -uNrp linux-2.6.16-rc2/include/asm-frv/atomic.h linux-2.6.16-rc2-frv/include/asm-frv/atomic.h
--- linux-2.6.16-rc2/include/asm-frv/atomic.h 2006-02-06 15:25:36.000000000 +0000
+++ linux-2.6.16-rc2-frv/include/asm-frv/atomic.h 2006-02-09 15:56:35.000000000 +0000
@@ -220,9 +220,9 @@ extern unsigned long atomic_test_and_XOR
switch (sizeof(__xg_orig)) { \
case 4: \
asm volatile( \
- "swap%I0 %2,%M0" \
- : "+m"(*__xg_ptr), "=&r"(__xg_orig) \
- : "r"(x) \
+ "swap%I0 %M0,%1" \
+ : "+m"(*__xg_ptr), "=r"(__xg_orig) \
+ : "1"(x) \
: "memory" \
); \
break; \
diff -uNrp linux-2.6.16-rc2/include/asm-frv/cacheflush.h linux-2.6.16-rc2-frv/include/asm-frv/cacheflush.h
--- linux-2.6.16-rc2/include/asm-frv/cacheflush.h 2005-06-22 13:52:26.000000000 +0100
+++ linux-2.6.16-rc2-frv/include/asm-frv/cacheflush.h 2006-02-07 17:05:26.000000000 +0000
@@ -87,5 +87,17 @@ static inline void flush_icache_page(str
flush_icache_user_range(vma, page, page_to_phys(page), PAGE_SIZE);
}

+/*
+ * permit ptrace to access another process's address space through the icache
+ * and the dcache
+ */
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+do { \
+ memcpy((dst), (src), (len)); \
+ flush_icache_user_range((vma), (page), (vaddr), (len)); \
+} while(0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+ memcpy((dst), (src), (len))

#endif /* _ASM_CACHEFLUSH_H */
diff -uNrp linux-2.6.16-rc2/include/asm-frv/io.h linux-2.6.16-rc2-frv/include/asm-frv/io.h
--- linux-2.6.16-rc2/include/asm-frv/io.h 2006-02-06 15:25:36.000000000 +0000
+++ linux-2.6.16-rc2-frv/include/asm-frv/io.h 2006-02-07 20:43:12.000000000 +0000
@@ -251,7 +251,6 @@ static inline void writel(uint32_t datum
#define IOMAP_WRITETHROUGH 3

extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
-extern void __iounmap(void __iomem *addr, unsigned long size);

static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
{
diff -uNrp linux-2.6.16-rc2/include/asm-frv/uaccess.h linux-2.6.16-rc2-frv/include/asm-frv/uaccess.h
--- linux-2.6.16-rc2/include/asm-frv/uaccess.h 2006-02-06 15:25:36.000000000 +0000
+++ linux-2.6.16-rc2-frv/include/asm-frv/uaccess.h 2006-02-07 17:02:43.000000000 +0000
@@ -306,7 +306,4 @@ extern long strnlen_user(const char *src

extern unsigned long search_exception_table(unsigned long addr);

-#define copy_to_user_page(vma, page, vaddr, dst, src, len) memcpy(dst, src, len)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) memcpy(dst, src, len)
-
#endif /* _ASM_UACCESS_H */
diff -uNrp linux-2.6.16-rc2/include/asm-frv/unistd.h linux-2.6.16-rc2-frv/include/asm-frv/unistd.h
--- linux-2.6.16-rc2/include/asm-frv/unistd.h 2006-02-06 15:25:36.000000000 +0000
+++ linux-2.6.16-rc2-frv/include/asm-frv/unistd.h 2006-02-07 18:35:08.000000000 +0000
@@ -295,13 +295,29 @@
#define __NR_add_key 286
#define __NR_request_key 287
#define __NR_keyctl 288
-#define __NR_vperfctr_open 289
-#define __NR_vperfctr_control (__NR_perfctr_info+1)
-#define __NR_vperfctr_unlink (__NR_perfctr_info+2)
-#define __NR_vperfctr_iresume (__NR_perfctr_info+3)
-#define __NR_vperfctr_read (__NR_perfctr_info+4)
+#define __NR_ioprio_set 289
+#define __NR_ioprio_get 290
+#define __NR_inotify_init 291
+#define __NR_inotify_add_watch 292
+#define __NR_inotify_rm_watch 293
+#define __NR_migrate_pages 294
+#define __NR_openat 295
+#define __NR_mkdirat 296
+#define __NR_mknodat 297
+#define __NR_fchownat 298
+#define __NR_futimesat 299
+#define __NR_newfstatat 300
+#define __NR_unlinkat 301
+#define __NR_renameat 302
+#define __NR_linkat 303
+#define __NR_symlinkat 304
+#define __NR_readlinkat 305
+#define __NR_fchmodat 306
+#define __NR_faccessat 307
+#define __NR_pselect6 308
+#define __NR_ppoll 309

-#define NR_syscalls 294
+#define NR_syscalls 310

/*
* process the return value of a syscall, consigning it to one of two possible fates
-
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Next message: Nick Warne: "Re: Random reboots"
Previous message: Roman Zippel: "Re: time patches by Roman Zippel"
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