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#if out x86 stuff to try to build zbeos

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23469 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
François Revol 2008-01-13 01:12:40 +00:00
parent 246ab5c53f
commit 6d45e991b5
1 changed files with 12 additions and 0 deletions
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12
src/system/boot/platform/atari_m68k/mmu.cpp
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@ -117,6 +117,7 @@ static void
add_page_table(addr_t base)
{
TRACE(("add_page_table(base = %p)\n", (void *)base));
#if 0
// Get new page table and clear it out
uint32 *pageTable = get_next_page_table();
@ -130,6 +131,7 @@ add_page_table(addr_t base)
// put the new page table into the page directory
sPageDirectory[base/(4*1024*1024)] = (uint32)pageTable | kDefaultPageTableFlags;
#endif
}
@ -140,6 +142,7 @@ unmap_page(addr_t virtualAddress)
if (virtualAddress < KERNEL_BASE)
panic("unmap_page: asked to unmap invalid page %p!\n", (void *)virtualAddress);
#if 0
// unmap the page from the correct page table
uint32 *pageTable = (uint32 *)(sPageDirectory[virtualAddress
@ -147,6 +150,7 @@ unmap_page(addr_t virtualAddress)
pageTable[(virtualAddress % (B_PAGE_SIZE * 1024)) / B_PAGE_SIZE] = 0;
asm volatile("invlpg (%0)" : : "r" (virtualAddress));
#endif
}
@ -213,6 +217,7 @@ sort_addr_range(addr_range *range, int count)
}
#if 0
static uint32
get_memory_map(extended_memory **_extendedMemory)
{
@ -246,6 +251,7 @@ get_memory_map(extended_memory **_extendedMemory)
return count;
}
#endif
static void
@ -253,6 +259,7 @@ init_page_directory(void)
{
TRACE(("init_page_directory\n"));
#if 0
// allocate a new pgdir
sPageDirectory = (uint32 *)get_next_physical_page();
gKernelArgs.arch_args.phys_pgdir = (uint32)sPageDirectory;
@ -292,6 +299,7 @@ init_page_directory(void)
"movl %%eax, %%cr3;" : : "m" (sPageDirectory) : "eax");
// Important. Make sure supervisor threads can fault on read only pages...
asm("movl %%eax, %%cr0" : : "a" ((1 << 31) | (1 << 16) | (1 << 5) | 1));
#endif
}
@ -396,6 +404,7 @@ extern "C" void
mmu_init_for_kernel(void)
{
TRACE(("mmu_init_for_kernel\n"));
#if 0
// set up a new idt
{
struct gdt_idt_descr idtDescriptor;
@ -509,6 +518,7 @@ mmu_init_for_kernel(void)
}
}
#endif
#endif
}
@ -523,6 +533,7 @@ mmu_init(void)
// remember the start of the allocated physical pages
init_page_directory();
#if 0
// Map the page directory into kernel space at 0xffc00000-0xffffffff
// this enables a mmu trick where the 4 MB region that this pgdir entry
@ -604,6 +615,7 @@ mmu_init(void)
}
gKernelArgs.arch_args.page_hole = 0xffc00000;
#endif
}