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authorMatt Fleming <matt.fleming@intel.com>2014-03-22 10:09:01 +0000
committerMark Brown <broonie@linaro.org>2014-06-16 21:23:59 +0100
commiteac39524c3e8648d35ea132feeab3b94d119231d (patch)
treea484cfaa074967191829aadc60a581dc2563777d
parent2df0137269c77f97f0c04410b07f58125a4e3149 (diff)
downloadlinux-linaro-stable-eac39524c3e8648d35ea132feeab3b94d119231d.tar.gz
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> (cherry picked from commit 204b0a1a4b92612c957a042df1a3be0e9cc79391) Signed-off-by: Mark Brown <broonie@linaro.org> Conflicts: arch/x86/boot/compressed/eboot.c
-rw-r--r--drivers/firmware/efi/efi-stub-helper.c44
1 files changed, 22 insertions, 22 deletions
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index a0282872d97d..ff50aeebf0d9 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -53,22 +53,22 @@ again:
* 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 @@ again:
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 @@ again:
*addr = max_addr;
}
- efi_early->call(efi_early->free_pool, map);
+ efi_call_early(free_pool, map);
fail:
return status;
}
@@ -221,9 +221,9 @@ static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
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 @@ static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
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 @@ static void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,
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 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
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 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
}
- 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 @@ close_handles:
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 @@ static efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg,
* 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