mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-18 18:23:53 +08:00
6656920b0b
Add support for processors that have cache-aliasing issues, such as the Stretch S5000 processor. Cache-aliasing means that the size of the cache (for one way) is larger than the page size, thus, a page can end up in several places in cache depending on the virtual to physical translation. The method used here is to map a user page temporarily through the auto-refill way 0 and of of the DTLB. We probably will want to revisit this issue and use a better approach with kmap/kunmap. Signed-off-by: Chris Zankel <chris@zankel.net>
99 lines
3.8 KiB
C
99 lines
3.8 KiB
C
/*
|
|
* arch/xtensa/kernel/asm-offsets.c
|
|
*
|
|
* Generates definitions from c-type structures used by assembly sources.
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 2005 Tensilica Inc.
|
|
*
|
|
* Chris Zankel <chris@zankel.net>
|
|
*/
|
|
|
|
#include <asm/processor.h>
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/stddef.h>
|
|
#include <linux/thread_info.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/mm.h>
|
|
|
|
#include <asm/ptrace.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/uaccess.h>
|
|
|
|
#define DEFINE(sym, val) asm volatile("\n->" #sym " %0 " #val : : "i" (val))
|
|
|
|
int main(void)
|
|
{
|
|
/* struct pt_regs */
|
|
DEFINE(PT_PC, offsetof (struct pt_regs, pc));
|
|
DEFINE(PT_PS, offsetof (struct pt_regs, ps));
|
|
DEFINE(PT_DEPC, offsetof (struct pt_regs, depc));
|
|
DEFINE(PT_EXCCAUSE, offsetof (struct pt_regs, exccause));
|
|
DEFINE(PT_EXCVADDR, offsetof (struct pt_regs, excvaddr));
|
|
DEFINE(PT_DEBUGCAUSE, offsetof (struct pt_regs, debugcause));
|
|
DEFINE(PT_WMASK, offsetof (struct pt_regs, wmask));
|
|
DEFINE(PT_LBEG, offsetof (struct pt_regs, lbeg));
|
|
DEFINE(PT_LEND, offsetof (struct pt_regs, lend));
|
|
DEFINE(PT_LCOUNT, offsetof (struct pt_regs, lcount));
|
|
DEFINE(PT_SAR, offsetof (struct pt_regs, sar));
|
|
DEFINE(PT_ICOUNTLEVEL, offsetof (struct pt_regs, icountlevel));
|
|
DEFINE(PT_SYSCALL, offsetof (struct pt_regs, syscall));
|
|
DEFINE(PT_AREG, offsetof (struct pt_regs, areg[0]));
|
|
DEFINE(PT_AREG0, offsetof (struct pt_regs, areg[0]));
|
|
DEFINE(PT_AREG1, offsetof (struct pt_regs, areg[1]));
|
|
DEFINE(PT_AREG2, offsetof (struct pt_regs, areg[2]));
|
|
DEFINE(PT_AREG3, offsetof (struct pt_regs, areg[3]));
|
|
DEFINE(PT_AREG4, offsetof (struct pt_regs, areg[4]));
|
|
DEFINE(PT_AREG5, offsetof (struct pt_regs, areg[5]));
|
|
DEFINE(PT_AREG6, offsetof (struct pt_regs, areg[6]));
|
|
DEFINE(PT_AREG7, offsetof (struct pt_regs, areg[7]));
|
|
DEFINE(PT_AREG8, offsetof (struct pt_regs, areg[8]));
|
|
DEFINE(PT_AREG9, offsetof (struct pt_regs, areg[9]));
|
|
DEFINE(PT_AREG10, offsetof (struct pt_regs, areg[10]));
|
|
DEFINE(PT_AREG11, offsetof (struct pt_regs, areg[11]));
|
|
DEFINE(PT_AREG12, offsetof (struct pt_regs, areg[12]));
|
|
DEFINE(PT_AREG13, offsetof (struct pt_regs, areg[13]));
|
|
DEFINE(PT_AREG14, offsetof (struct pt_regs, areg[14]));
|
|
DEFINE(PT_AREG15, offsetof (struct pt_regs, areg[15]));
|
|
DEFINE(PT_WINDOWBASE, offsetof (struct pt_regs, windowbase));
|
|
DEFINE(PT_WINDOWSTART, offsetof(struct pt_regs, windowstart));
|
|
DEFINE(PT_SIZE, sizeof(struct pt_regs));
|
|
DEFINE(PT_AREG_END, offsetof (struct pt_regs, areg[XCHAL_NUM_AREGS]));
|
|
DEFINE(PT_USER_SIZE, offsetof(struct pt_regs, areg[XCHAL_NUM_AREGS]));
|
|
|
|
/* struct task_struct */
|
|
DEFINE(TASK_PTRACE, offsetof (struct task_struct, ptrace));
|
|
DEFINE(TASK_MM, offsetof (struct task_struct, mm));
|
|
DEFINE(TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
|
|
DEFINE(TASK_PID, offsetof (struct task_struct, pid));
|
|
DEFINE(TASK_THREAD, offsetof (struct task_struct, thread));
|
|
DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack));
|
|
DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct));
|
|
|
|
/* struct thread_info (offset from start_struct) */
|
|
DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra));
|
|
DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));
|
|
DEFINE(THREAD_CP_SAVE, offsetof (struct task_struct, thread.cp_save));
|
|
DEFINE(THREAD_CURRENT_DS, offsetof (struct task_struct, thread.current_ds));
|
|
|
|
/* struct mm_struct */
|
|
DEFINE(MM_USERS, offsetof(struct mm_struct, mm_users));
|
|
DEFINE(MM_PGD, offsetof (struct mm_struct, pgd));
|
|
DEFINE(MM_CONTEXT, offsetof (struct mm_struct, context));
|
|
|
|
/* struct page */
|
|
DEFINE(PAGE_FLAGS, offsetof(struct page, flags));
|
|
|
|
/* constants */
|
|
DEFINE(_CLONE_VM, CLONE_VM);
|
|
DEFINE(_CLONE_UNTRACED, CLONE_UNTRACED);
|
|
DEFINE(PG_ARCH_1, PG_arch_1);
|
|
|
|
return 0;
|
|
}
|
|
|