The EFI_CONVENTIONAL_MEMORY type is now being managed through the LMB module. Add a separate function, lmb_add_memory() to add the RAM memory to the LMB memory map. The efi_add_known_memory() function is now used for adding any other memory type to the EFI memory map.
Signed-off-by: Sughosh Ganu sughosh.ganu@linaro.org --- Changes since V1: New patch
arch/x86/lib/e820.c | 47 ++++++++++++++++++++++++++++++++++----------- 1 file changed, 36 insertions(+), 11 deletions(-)
diff --git a/arch/x86/lib/e820.c b/arch/x86/lib/e820.c index 122b4f7ca0..8b3ce8c6ec 100644 --- a/arch/x86/lib/e820.c +++ b/arch/x86/lib/e820.c @@ -4,6 +4,7 @@ */
#include <efi_loader.h> +#include <lmb.h> #include <asm/e820.h> #include <asm/global_data.h>
@@ -41,15 +42,11 @@ void efi_add_known_memory(void) { struct e820_entry e820[E820MAX]; unsigned int i, num; - u64 start, ram_top; + u64 start; int type;
num = install_e820_map(ARRAY_SIZE(e820), e820);
- ram_top = (u64)gd->ram_top & ~EFI_PAGE_MASK; - if (!ram_top) - ram_top = 0x100000000ULL; - for (i = 0; i < num; ++i) { start = e820[i].addr;
@@ -72,13 +69,41 @@ void efi_add_known_memory(void) break; }
- if (type == EFI_CONVENTIONAL_MEMORY) { - efi_add_conventional_memory_map(start, - start + e820[i].size, - ram_top); - } else { + if (type != EFI_CONVENTIONAL_MEMORY) efi_add_memory_map(start, e820[i].size, type); - } } } #endif /* CONFIG_IS_ENABLED(EFI_LOADER) */ + +#if CONFIG_IS_ENABLED(LMB) +void lmb_add_memory(void) +{ + struct e820_entry e820[E820MAX]; + unsigned int i, num; + u64 ram_top; + + num = install_e820_map(ARRAY_SIZE(e820), e820); + + ram_top = (u64)gd->ram_top & ~EFI_PAGE_MASK; + if (!ram_top) + ram_top = 0x100000000ULL; + + for (i = 0; i < num; ++i) { + if (e820[i].type == E820_RAM) { + u64 start, size, rgn_top; + + start = e820[i].addr; + size = e820[i].size; + rgn_top = start + size; + + if (start > ram_top) + continue; + + if (rgn_top > ram_top) + size -= rgn_top - ram_top; + + lmb_add(start, size); + } + } +} +#endif /* CONFIG_IS_ENABLED(LMB) */