X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fi386%2Fmach-visws%2Fsetup.c;h=8a9e1a6f745de17f9d28e9acfaf2e3f3d205994a;hb=f6e6e883730aff2718610d3eba7608fcf73328ed;hp=07fac7e749c7406aa642528dbd292b4fb036c189;hpb=0ace57a96bf299f6d46fd49e3edbaf79f500d160;p=powerpc.git

diff --git a/arch/i386/mach-visws/setup.c b/arch/i386/mach-visws/setup.c
index 07fac7e749..8a9e1a6f74 100644
--- a/arch/i386/mach-visws/setup.c
+++ b/arch/i386/mach-visws/setup.c
@@ -10,6 +10,8 @@
 #include <asm/fixmap.h>
 #include <asm/arch_hooks.h>
 #include <asm/io.h>
+#include <asm/e820.h>
+#include <asm/setup.h>
 #include "cobalt.h"
 #include "piix4.h"
 
@@ -133,3 +135,50 @@ void __init time_init_hook(void)
 	/* Wire cpu IDT entry to s/w handler (and Cobalt APIC to IDT) */
 	setup_irq(0, &irq0);
 }
+
+/* Hook for machine specific memory setup. */
+
+#define MB (1024 * 1024)
+
+static unsigned long sgivwfb_mem_phys;
+static unsigned long sgivwfb_mem_size;
+
+long long mem_size __initdata = 0;
+
+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);
+}