x86, efi: Abstract x86 efi_early calls
The ARM EFI boot stub doesn't need to care about the efi_early
infrastructure that x86 requires in order to do mixed mode thunking. So
wrap everything up in an efi_call_early() macro.
This allows x86 to do the necessary indirection jumps to call whatever
firmware interface is necessary (native or mixed mode), but also allows
the ARM folks to mask the fact that they don't support relocation in the
boot stub and need to pass 'sys_table_arg' to every function.
[ hpa: there are no object code changes from this patch ]
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Link: http://lkml.kernel.org/r/20140326091011.GB2958@console-pimps.org
Cc: Roy Franz <roy.franz@linaro.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index a028287..ff50aee 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -53,22 +53,22 @@
* allocation which may be in a new descriptor region.
*/
*map_size += sizeof(*m);
- status = efi_early->call(efi_early->allocate_pool, EFI_LOADER_DATA,
- *map_size, (void **)&m);
+ status = efi_call_early(allocate_pool, EFI_LOADER_DATA,
+ *map_size, (void **)&m);
if (status != EFI_SUCCESS)
goto fail;
*desc_size = 0;
key = 0;
- status = efi_early->call(efi_early->get_memory_map, map_size, m,
- &key, desc_size, &desc_version);
+ status = efi_call_early(get_memory_map, map_size, m,
+ &key, desc_size, &desc_version);
if (status == EFI_BUFFER_TOO_SMALL) {
- efi_early->call(efi_early->free_pool, m);
+ efi_call_early(free_pool, m);
goto again;
}
if (status != EFI_SUCCESS)
- efi_early->call(efi_early->free_pool, m);
+ efi_call_early(free_pool, m);
if (key_ptr && status == EFI_SUCCESS)
*key_ptr = key;
@@ -149,9 +149,9 @@
if (!max_addr)
status = EFI_NOT_FOUND;
else {
- status = efi_early->call(efi_early->allocate_pages,
- EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
- nr_pages, &max_addr);
+ status = efi_call_early(allocate_pages,
+ EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
+ nr_pages, &max_addr);
if (status != EFI_SUCCESS) {
max = max_addr;
max_addr = 0;
@@ -161,7 +161,7 @@
*addr = max_addr;
}
- efi_early->call(efi_early->free_pool, map);
+ efi_call_early(free_pool, map);
fail:
return status;
}
@@ -221,9 +221,9 @@
if ((start + size) > end)
continue;
- status = efi_early->call(efi_early->allocate_pages,
- EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
- nr_pages, &start);
+ status = efi_call_early(allocate_pages,
+ EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
+ nr_pages, &start);
if (status == EFI_SUCCESS) {
*addr = start;
break;
@@ -233,7 +233,7 @@
if (i == map_size / desc_size)
status = EFI_NOT_FOUND;
- efi_early->call(efi_early->free_pool, map);
+ efi_call_early(free_pool, map);
fail:
return status;
}
@@ -247,7 +247,7 @@
return;
nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
- efi_early->call(efi_early->free_pages, addr, nr_pages);
+ efi_call_early(free_pages, addr, nr_pages);
}
@@ -307,8 +307,8 @@
if (!nr_files)
return EFI_SUCCESS;
- status = efi_early->call(efi_early->allocate_pool, EFI_LOADER_DATA,
- nr_files * sizeof(*files), (void **)&files);
+ status = efi_call_early(allocate_pool, EFI_LOADER_DATA,
+ nr_files * sizeof(*files), (void **)&files);
if (status != EFI_SUCCESS) {
efi_printk(sys_table_arg, "Failed to alloc mem for file handle list\n");
goto fail;
@@ -413,7 +413,7 @@
}
- efi_early->call(efi_early->free_pool, files);
+ efi_call_early(free_pool, files);
*load_addr = file_addr;
*load_size = file_size_total;
@@ -427,7 +427,7 @@
for (k = j; k < i; k++)
efi_file_close(fh, files[k].handle);
free_files:
- efi_early->call(efi_early->free_pool, files);
+ efi_call_early(free_pool, files);
fail:
*load_addr = 0;
*load_size = 0;
@@ -473,9 +473,9 @@
* as possible while respecting the required alignment.
*/
nr_pages = round_up(alloc_size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
- status = efi_early->call(efi_early->allocate_pages,
- EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
- nr_pages, &efi_addr);
+ status = efi_call_early(allocate_pages,
+ EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
+ nr_pages, &efi_addr);
new_addr = efi_addr;
/*
* If preferred address allocation failed allocate as low as