mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-21 00:42:16 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* Hook for machine specific memory setup.
|
|
*
|
|
* This is included late in kernel/setup.c so that it can make use of all of
|
|
* the static functions. */
|
|
|
|
#define MB (1024 * 1024)
|
|
|
|
unsigned long sgivwfb_mem_phys;
|
|
unsigned long sgivwfb_mem_size;
|
|
|
|
long long mem_size __initdata = 0;
|
|
|
|
static char * __init machine_specific_memory_setup(void)
|
|
{
|
|
long long gfx_mem_size = 8 * MB;
|
|
|
|
mem_size = ALT_MEM_K;
|
|
|
|
if (!mem_size) {
|
|
printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n");
|
|
mem_size = 128 * MB;
|
|
}
|
|
|
|
/*
|
|
* this hardcodes the graphics memory to 8 MB
|
|
* it really should be sized dynamically (or at least
|
|
* set as a boot param)
|
|
*/
|
|
if (!sgivwfb_mem_size) {
|
|
printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n");
|
|
sgivwfb_mem_size = 8 * MB;
|
|
}
|
|
|
|
/*
|
|
* Trim to nearest MB
|
|
*/
|
|
sgivwfb_mem_size &= ~((1 << 20) - 1);
|
|
sgivwfb_mem_phys = mem_size - gfx_mem_size;
|
|
|
|
add_memory_region(0, LOWMEMSIZE(), E820_RAM);
|
|
add_memory_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
|
|
add_memory_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
|
|
|
|
return "PROM";
|
|
|
|
/* Remove gcc warnings */
|
|
(void) sanitize_e820_map(NULL, NULL);
|
|
(void) copy_e820_map(NULL, 0);
|
|
}
|