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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/mach-visws/setup_arch_post.h
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Linux-2.6.12-rc2
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!
Diffstat (limited to 'include/asm-i386/mach-visws/setup_arch_post.h')
-rw-r--r--include/asm-i386/mach-visws/setup_arch_post.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/include/asm-i386/mach-visws/setup_arch_post.h b/include/asm-i386/mach-visws/setup_arch_post.h
new file mode 100644
index 0000000..cdbd895
--- /dev/null
+++ b/include/asm-i386/mach-visws/setup_arch_post.h
@@ -0,0 +1,49 @@
+/* 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);
+}