[PATCH v2 09/10] efi: payload: early-mem: helps to correctly boot x86 linux.

[chalianis1]

From: Chali Anis <chalian...@gmail.com>

remove the allocate EFI_ALLOCATE_MAX_ADDRESSES and use a different
memsize for x86 since the initrd could be bigger that those used in
arm. it might be refactored in the future with a more generic allocation
strategy (i.e barebox malloc memory vs an allocator for the boot loader data)
something like sdram_request_region or just allocate small memory for the
barebox allocator and implement a way to allocate memory for kernel/initrd
directly from efi.

Signed-off-by: Chali Anis <chalian...@gmail.com>
---
 efi/payload/early-mem.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/efi/payload/early-mem.c b/efi/payload/early-mem.c
index 0f79a8c30694..150a2a595afc 100644
--- a/efi/payload/early-mem.c
+++ b/efi/payload/early-mem.c
@@ -9,18 +9,17 @@ void *efi_earlymem_alloc(const struct efi_system_table 
*sys_table,
                         size_t *memsize, enum efi_memory_type mem_type)
 {
        struct efi_boot_services *bs = sys_table->boottime;
-       enum efi_allocate_type alloc_type = EFI_ALLOCATE_ANY_PAGES;
        efi_physical_addr_t mem;
        efi_status_t efiret;
+       size_t m_sz;
 
-       if (IS_ENABLED(CONFIG_X86)) {
-               /* Try to stay clear of memory mapped devices */
-               alloc_type = EFI_ALLOCATE_MAX_ADDRESS;
-               mem = SZ_1G - 1;
-       }
+       if (IS_ENABLED(CONFIG_X86))
+               m_sz = SZ_512M;
+       else
+               m_sz = SZ_256M;
 
-       for (*memsize = SZ_256M; *memsize >= SZ_8M; *memsize /= 2) {
-               efiret  = bs->allocate_pages(alloc_type, mem_type,
+       for (*memsize = m_sz; *memsize >= SZ_8M; *memsize /= 2) {
+               efiret  = bs->allocate_pages(EFI_ALLOCATE_ANY_PAGES, mem_type,
                                             *memsize / EFI_PAGE_SIZE, &mem);
                if (!EFI_ERROR(efiret) || efiret != EFI_OUT_OF_RESOURCES)
                        break;
-- 
2.34.1