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[S390] cleanup psw related bits and pieces

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Split out addressing mode bits from PSW_BASE_BITS, rename PSW_BASE_BITS
to PSW_MASK_BASE, get rid of psw_user32_bits, remove unused function
enabled_wait(), introduce PSW_MASK_USER, and drop PSW_MASK_MERGE macros.
Change psw_kernel_bits / psw_user_bits to contain only the bits that
are always set in the respective mode.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky
2011-10-30 15:16:50 +01:00
parent b6ef5bb3d9
commit b50511e41a
20 changed files with 109 additions and 125 deletions
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3
arch/s390/kernel/process.c
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@@ -117,7 +117,8 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
struct pt_regs regs;
memset(&regs, 0, sizeof(regs));
regs.psw.mask = psw_kernel_bits | PSW_MASK_IO | PSW_MASK_EXT;
regs.psw.mask = psw_kernel_bits |
PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
regs.psw.addr = (unsigned long) kernel_thread_starter | PSW_ADDR_AMODE;
regs.gprs[9] = (unsigned long) fn;
regs.gprs[10] = (unsigned long) arg;