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| author | Kevin O'Connor <kevin@koconnor.net> | 2009-08-01 11:45:37 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2009-08-01 11:45:37 -0400 |
| commit | 0bf9270aa47777992914096d476c4aef99e30865 (patch) | |
| tree | f2318aba7b724632088310ad3beb14a1ca450053 /src/farptr.h | |
| parent | 69656657953bf9a65ef55a20c1626023ffefb41d (diff) | |
| download | seabios-hppa-0bf9270aa47777992914096d476c4aef99e30865.zip seabios-hppa-0bf9270aa47777992914096d476c4aef99e30865.tar.gz seabios-hppa-0bf9270aa47777992914096d476c4aef99e30865.tar.bz2 | |
Add Post Memory Manager (PMM) support.
Complete the initial implementation of PMM.
Default new PMM code to be enabled.
Move malloc code from memmap.c to pmm.c.
Define new malloc zones for PMM (ZoneTmpLow and ZoneTmpHigh).
Change default READ/WRITE_SEG macros to use 32bit pointers (the 16bit
PMM code use "big real" mode and requires 32bit accesses).
Allow pmm allocations to occur during bcv executions also.
Add low-memory clearing before boot.
Also, align the default f-seg memory.
Diffstat (limited to 'src/farptr.h')
| -rw-r--r-- | src/farptr.h | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/farptr.h b/src/farptr.h index a270f87..1f3df9d 100644 --- a/src/farptr.h +++ b/src/farptr.h @@ -1,6 +1,6 @@ // Code to access multiple segments within gcc. // -// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net> +// Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net> // // This file may be distributed under the terms of the GNU LGPLv3 license. #ifndef __FARPTR_H @@ -15,13 +15,13 @@ extern u16 __segment_FS, __segment_GS; // Low level macros for reading/writing memory via a segment selector. #define READ8_SEG(SEG, value, var) \ - __asm__("movb %%" #SEG ":%1, %b0" : "=Qi"(value) \ + __asm__("addr32 movb %%" #SEG ":%1, %b0" : "=Qi"(value) \ : "m"(var), "m"(__segment_ ## SEG)) #define READ16_SEG(SEG, value, var) \ - __asm__("movw %%" #SEG ":%1, %w0" : "=ri"(value) \ + __asm__("addr32 movw %%" #SEG ":%1, %w0" : "=ri"(value) \ : "m"(var), "m"(__segment_ ## SEG)) #define READ32_SEG(SEG, value, var) \ - __asm__("movl %%" #SEG ":%1, %0" : "=ri"(value) \ + __asm__("addr32 movl %%" #SEG ":%1, %0" : "=ri"(value) \ : "m"(var), "m"(__segment_ ## SEG)) #define READ64_SEG(SEG, value, var) do { \ union u64_u32_u __value; \ @@ -31,18 +31,19 @@ extern u16 __segment_FS, __segment_GS; *(u64*)&(value) = __value.val; \ } while (0) #define WRITE8_SEG(SEG, var, value) \ - __asm__("movb %b1, %%" #SEG ":%0" : "=m"(var) \ + __asm__("addr32 movb %b1, %%" #SEG ":%0" : "=m"(var) \ : "Q"(value), "m"(__segment_ ## SEG)) #define WRITE16_SEG(SEG, var, value) \ - __asm__("movw %w1, %%" #SEG ":%0" : "=m"(var) \ + __asm__("addr32 movw %w1, %%" #SEG ":%0" : "=m"(var) \ : "r"(value), "m"(__segment_ ## SEG)) #define WRITE32_SEG(SEG, var, value) \ - __asm__("movl %1, %%" #SEG ":%0" : "=m"(var) \ + __asm__("addr32 movl %1, %%" #SEG ":%0" : "=m"(var) \ : "r"(value), "m"(__segment_ ## SEG)) #define WRITE64_SEG(SEG, var, value) do { \ union u64_u32_u __value; \ union u64_u32_u *__w64_ptr = (union u64_u32_u *)&(var); \ - __value.val = (value); \ + typeof(var) __value_tmp = (value); \ + __value.val = *(u64*)&__value_tmp; \ WRITE32_SEG(SEG, __w64_ptr->hi, __value.hi); \ WRITE32_SEG(SEG, __w64_ptr->lo, __value.lo); \ } while (0) |