static char * __init visws_memory_setup(void)
{
long long gfx_mem_size = 8 * MB;
mem_size = boot_params.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;
e820_add_region(0, LOWMEMSIZE(), E820_RAM);
e820_add_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM);
e820_add_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED);
return "PROM";
}
char * __init machine_specific_memory_setup(void)
{
char *who;
who = "BIOS-e820";
/*
* Try to copy the BIOS-supplied E820-map.
*
* Otherwise fake a memory map; one section from 0k->640k,
* the next section from 1mb->appropriate_mem_k
*/
sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries)
< 0) {
unsigned long mem_size;
/* compare results from other methods and take the greater */
if (boot_params.alt_mem_k
< boot_params.screen_info.ext_mem_k) {
mem_size = boot_params.screen_info.ext_mem_k;
who = "BIOS-88";
} else {
mem_size = boot_params.alt_mem_k;
who = "BIOS-e801";
}
e820.nr_map = 0;
add_memory_region(0, LOWMEMSIZE(), E820_RAM);
add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
}
return who;
}
char * __init xen_memory_setup(void)
{
unsigned long max_pfn = xen_start_info->nr_pages;
e820.nr_map = 0;
add_memory_region(0, LOWMEMSIZE(), E820_RAM);
add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM);
return "Xen";
}
static char * __init x86_intel_ce_memory_setup(void)
{
unsigned long memory_top, linux_top;
/* Our only memory config option is e801,
* firmware doesn't seem to bother with e820 map.
*/
memory_top = ONE_MB + boot_params.alt_mem_k * 1024;
/* Ancient bootloaders pass garbage here, do a basic sanity check */
if (memory_top < 4 * ONE_MB) {
printk(KERN_WARNING
"Incorrect e801 memory size 0x%08lx, using 768 MB\n",
memory_top);
memory_top = 768 * ONE_MB;
}
e820_add_region(0, LOWMEMSIZE(), E820_RAM);
e820_add_region(HIGH_MEMORY, memory_top - HIGH_MEMORY, E820_RAM);
/* CEFDK uses some regions in the first 1MB for various purposes.
* We hardcode superset of those regions to support different
* CEFDK releases.
*/
#ifdef CONFIG_ACPI
e820_update_range(0x10000, 0x8000, E820_RAM, E820_ACPI);
#endif
/* 8051 microcode can be loaded at 0x30000 or 0x40000 */
e820_update_range(0x30000, 0x20000, E820_RAM, E820_RESERVED);
/* e1000 "NVRAM" */
e820_update_range(0x60000, 0x1000, E820_RAM, E820_RESERVED);
linux_top = x86_intel_ce_machine_top_of_ram(memory_top);
if (linux_top < memory_top)
e820_update_range(linux_top, memory_top - linux_top, E820_RAM,
E820_RESERVED);
/* check board name for reboot and halt sequence*/
{
static __initdata char tmp_cmdline[COMMAND_LINE_SIZE];
strlcpy(tmp_cmdline, boot_command_line, COMMAND_LINE_SIZE);
parse_args("beyond_param", tmp_cmdline, NULL, 0, parse_pwrctl_type);
}
return "BIOS-e801";
}
char * __init machine_specific_memory_setup(void)
{
char *who;
who = "NOT VOYAGER";
if(voyager_level == 5) {
__u32 addr, length;
int i;
who = "Voyager-SUS";
e820.nr_map = 0;
for(i=0; voyager_memory_detect(i, &addr, &length); i++) {
add_memory_region(addr, length, E820_RAM);
}
return who;
} else if(voyager_level == 4) {
__u32 tom;
__u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8;
/* select the DINO config space */
outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT);
/* Read DINO top of memory register */
tom = ((inb(catbase + 0x4) & 0xf0) << 16)
+ ((inb(catbase + 0x5) & 0x7f) << 24);
if(inb(catbase) != VOYAGER_DINO) {
printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n");
tom = (EXT_MEM_K)<<10;
}
who = "Voyager-TOM";
add_memory_region(0, 0x9f000, E820_RAM);
/* map from 1M to top of memory */
add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM);
/* FIXME: Should check the ASICs to see if I need to
* take out the 8M window. Just do it at the moment
* */
add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED);
return who;
}
who = "BIOS-e820";
/*
* Try to copy the BIOS-supplied E820-map.
*
* Otherwise fake a memory map; one section from 0k->640k,
* the next section from 1mb->appropriate_mem_k
*/
sanitize_e820_map(E820_MAP, &E820_MAP_NR);
if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
unsigned long mem_size;
/* compare results from other methods and take the greater */
if (ALT_MEM_K < EXT_MEM_K) {
mem_size = EXT_MEM_K;
who = "BIOS-88";
} else {
mem_size = ALT_MEM_K;
who = "BIOS-e801";
}
e820.nr_map = 0;
add_memory_region(0, LOWMEMSIZE(), E820_RAM);
add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
}
return who;
}
