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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2009-07-18 19:11:06 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-07-19 20:27:52 +0400 |
| commit | 57594742a2b545f8f114cda34f15650be8ae976d (patch) | |
| tree | 2682b10d68f3fb33aa047fa2a3ff6db2061c0740 /drivers/pnp/pnpbios | |
| parent | fde0312d01b60a3fd5dc56e69a9613defbbc7097 (diff) | |
| download | linux-57594742a2b545f8f114cda34f15650be8ae976d.tar.xz | |
x86: Introduce set_desc_base() and set_desc_limit()
Rename set_base()/set_limit to set_desc_base()/set_desc_limit()
and rewrite them in C. These are naturally introduced by the
idea of get_desc_base()/get_desc_limit().
The conversion actually found the bug in apm_32.c:
bad_bios_desc is written at run-time, but it is defined const
variable.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090718151105.GC11294@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/pnp/pnpbios')
| -rw-r--r-- | drivers/pnp/pnpbios/bioscalls.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c index 7e6b5a3b3281..45ad3e9cc362 100644 --- a/drivers/pnp/pnpbios/bioscalls.c +++ b/drivers/pnp/pnpbios/bioscalls.c @@ -55,9 +55,9 @@ __asm__(".text \n" #define Q2_SET_SEL(cpu, selname, address, size) \ do { \ -struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \ -set_base(gdt[(selname) >> 3], (u32)(address)); \ -set_limit(gdt[(selname) >> 3], size); \ + struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \ + set_desc_base(&gdt[(selname) >> 3], (u32)(address)); \ + set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \ } while(0) static struct desc_struct bad_bios_desc; @@ -479,16 +479,17 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header) bad_bios_desc.a = 0; bad_bios_desc.b = 0x00409200; - set_base(bad_bios_desc, __va((unsigned long)0x40 << 4)); - _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4)); + set_desc_base(&bad_bios_desc, (unsigned long)__va(0x40UL << 4)); + set_desc_limit(&bad_bios_desc, 4095 - (0x40 << 4)); for_each_possible_cpu(i) { struct desc_struct *gdt = get_cpu_gdt_table(i); if (!gdt) continue; - set_base(gdt[GDT_ENTRY_PNPBIOS_CS32], &pnp_bios_callfunc); - set_base(gdt[GDT_ENTRY_PNPBIOS_CS16], - __va(header->fields.pm16cseg)); - set_base(gdt[GDT_ENTRY_PNPBIOS_DS], - __va(header->fields.pm16dseg)); + set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_CS32], + (unsigned long)&pnp_bios_callfunc); + set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_CS16], + (unsigned long)__va(header->fields.pm16cseg)); + set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS], + (unsigned long)__va(header->fields.pm16dseg)); } } |