diff options
| author | Zachary Amsden <zach@vmware.com> | 2006-01-06 00:11:56 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-06 08:33:35 -0800 |
| commit | e6a9918c9617ed21f71f2f20b45efe06822c8f00 (patch) | |
| tree | 1518725e6db9a84667cc0d713a5e5c6c156a979d /drivers/pnp/pnpbios/bioscalls.c | |
| parent | 5fe9fe3c6f9a1ae7aa224bb7a66eb9aad9e4abef (diff) | |
[PATCH] x86: Fixed pnp bios limits
PnP BIOS data, code, and 32-bit entry segments all have fixed limits as well;
set them in the GDT rather than adding more code. It would be nice to add
these fixups to the boot GDT rather than setting the GDT for each CPU; perhaps
I can wiggle this in later, but getting it in before the subsys init looks
tricky.
Also, make some progress on deprecating the ugly Q_SET_SEL macros.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: "Seth, Rohit" <rohit.seth@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/pnp/pnpbios/bioscalls.c')
| -rw-r--r-- | drivers/pnp/pnpbios/bioscalls.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c index a72126180e9..a1f0b0ba2bf 100644 --- a/drivers/pnp/pnpbios/bioscalls.c +++ b/drivers/pnp/pnpbios/bioscalls.c @@ -58,13 +58,6 @@ __asm__( ".previous \n" ); -#define Q_SET_SEL(cpu, selname, address, size) \ -do { \ -struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \ -set_base(gdt[(selname) >> 3], __va((u32)(address))); \ -set_limit(gdt[(selname) >> 3], size); \ -} while(0) - #define Q2_SET_SEL(cpu, selname, address, size) \ do { \ struct desc_struct *gdt = get_cpu_gdt_table((cpu)); \ @@ -535,8 +528,8 @@ void pnpbios_calls_init(union pnp_bios_install_struct *header) struct desc_struct *gdt = get_cpu_gdt_table(i); if (!gdt) continue; - Q2_SET_SEL(i, PNP_CS32, &pnp_bios_callfunc, 64 * 1024); - Q_SET_SEL(i, PNP_CS16, header->fields.pm16cseg, 64 * 1024); - Q_SET_SEL(i, PNP_DS, header->fields.pm16dseg, 64 * 1024); - } + 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)); + } } |