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add memory routines

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-12-07 16:16:10 +01:00
parent d5b44e501d
commit 0f355bc6b3
6 changed files with 164 additions and 19 deletions
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51
kern/mips/yeeloong/init.c
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@ -28,8 +28,6 @@
#include <grub/machine/memory.h>
#include <grub/cpu/kernel.h>
#define RAMSIZE (64 << 20)
grub_uint32_t
grub_get_rtc (void)
{
@ -38,11 +36,48 @@ grub_get_rtc (void)
return (calln++) >> 8;
}
grub_err_t
grub_machine_mmap_iterate (int NESTED_FUNC_ATTR (*hook) (grub_uint64_t,
grub_uint64_t,
grub_uint32_t))
{
hook (GRUB_ARCH_LOWMEMPSTART, grub_arch_memsize << 20,
GRUB_MACHINE_MEMORY_AVAILABLE);
hook (GRUB_ARCH_HIGHMEMPSTART, grub_arch_highmemsize << 20,
GRUB_MACHINE_MEMORY_AVAILABLE);
return GRUB_ERR_NONE;
}
static void *
get_modules_end (void)
{
struct grub_module_info *modinfo;
struct grub_module_header *header;
grub_addr_t modbase;
modbase = grub_arch_modules_addr ();
modinfo = (struct grub_module_info *) modbase;
/* Check if there are any modules. */
if ((modinfo == 0) || modinfo->magic != GRUB_MODULE_MAGIC)
return modinfo;
for (header = (struct grub_module_header *) (modbase + modinfo->offset);
header < (struct grub_module_header *) (modbase + modinfo->size);
header = (struct grub_module_header *) ((char *) header + header->size));
return header;
}
void
grub_machine_init (void)
{
grub_mm_init_region ((void *) GRUB_MACHINE_MEMORY_USABLE,
RAMSIZE - (GRUB_MACHINE_MEMORY_USABLE & 0x7fffffff));
void *modend;
modend = get_modules_end ();
grub_mm_init_region (modend, (grub_arch_memsize << 20)
- (((grub_addr_t) modend) - GRUB_ARCH_LOWMEMVSTART));
/* FIXME: use upper memory as well. */
grub_install_get_time_ms (grub_rtc_get_time_ms);
}
@ -69,11 +104,3 @@ grub_reboot (void)
while (1);
}
grub_err_t
grub_machine_mmap_iterate (int NESTED_FUNC_ATTR (*hook) (grub_uint64_t,
grub_uint64_t,
grub_uint32_t))
{
hook (0, RAMSIZE, GRUB_MACHINE_MEMORY_AVAILABLE);
return GRUB_ERR_NONE;
}