On Tue, Apr 22, 2014 at 8:30 PM, Arnd Bergmann wrote:
> On Friday 18 April 2014, Ley Foon Tan wrote:
>
>> +
>> + #define sys_mmap2 sys_mmap_pgoff
>> +
>
> You use sys_mmap_pgoff here, but
>
>> +asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
>> + unsigned long p
On Friday 18 April 2014, Ley Foon Tan wrote:
> +
> + #define sys_mmap2 sys_mmap_pgoff
> +
You use sys_mmap_pgoff here, but
> +asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
> + unsigned long prot, unsigned long flags,
> + unsigned long fd,
On Tue, Apr 22, 2014 at 4:48 AM, Pavel Machek wrote:
>> >>> +/* sys_cacheflush -- flush the processor cache. */
>> >>> +asmlinkage int sys_cacheflush(unsigned long addr, unsigned long len,
>> >>> + unsigned int op)
>> >>> +{
>> >>> + struct vm_area_struct *vma;
>> >
> >>> +/* sys_cacheflush -- flush the processor cache. */
> >>> +asmlinkage int sys_cacheflush(unsigned long addr, unsigned long len,
> >>> + unsigned int op)
> >>> +{
> >>> + struct vm_area_struct *vma;
> >>> +
> >>> + if (len == 0)
> >>> + return 0;
Hi!
> > Also... explanation why you need this syscall while other
> > architectures live happily without it would be nice.
> This syscall exist in nios2 port since old days and some users already
> used it for sometimes.
> Like mentioned by Greet, 12 our of 28 architectures provide such a syscall.
On Mon, Apr 21, 2014 at 7:32 PM, Ley Foon Tan wrote:
> On Sun, Apr 20, 2014 at 12:09 AM, Pavel Machek wrote:
>>> +/* Additional Nios II specific syscalls. */
>>> +#define __NR_cacheflush (__NR_arch_specific_syscall)
>>> +__SYSCALL(__NR_cacheflush, sys_cacheflush)
>>
>> I guess you should Cc: Mich
On Sun, Apr 20, 2014 at 12:09 AM, Pavel Machek wrote:
>> +/* Additional Nios II specific syscalls. */
>> +#define __NR_cacheflush (__NR_arch_specific_syscall)
>> +__SYSCALL(__NR_cacheflush, sys_cacheflush)
>
> I guess you should Cc: Michael Kerrisk on this one.
CC him this email.
>
> Also... expl
On Sun, Apr 20, 2014 at 4:12 AM, Geert Uytterhoeven
wrote:
>> +*/
>> + vma = find_vma(current->mm, addr);
>> + if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end)
>> + return -EFAULT;
>> +
>> + /* Ignore the scope and cache arguments. */
>
>
On Fri, Apr 18, 2014 at 2:26 PM, Ley Foon Tan wrote:
> +/* sys_cacheflush -- flush the processor cache. */
> +asmlinkage int sys_cacheflush(unsigned long addr, unsigned long len,
> + unsigned int op)
> +{
> + struct vm_area_struct *vma;
> +
> + if (len ==
On Fri 2014-04-18 20:26:59, Ley Foon Tan wrote:
> This patch adds support for system calls from userspaces. It uses the
> asm-generic/unistd.h definitions with architecture spcific syscall. The
> sys_call_table
> is just an array defined in a C file and it contains pointers to the syscall
> funct
This patch adds support for system calls from userspaces. It uses the
asm-generic/unistd.h definitions with architecture spcific syscall. The
sys_call_table
is just an array defined in a C file and it contains pointers to the syscall
functions.
Signed-off-by: Ley Foon Tan
---
arch/nios2/includ
11 matches
Mail list logo
