On Sun, Oct 27, 2013 at 11:47:16AM +0800, dyoung@xxxxxxxxxx wrote:
> Add two small functions:
> efi_merge_regions and efi_map_regions, efi_enter_virtual_mode
> calls them instead of embedding two long for loop.
>
> Signed-off-by: Dave Young <dyoung@xxxxxxxxxx>
> ---
> arch/x86/platform/efi/efi.c | 83 +++++++++++++++++++++++++++-----------------
> 1 file changed, 52 insertions(+), 31 deletions(-)
>
> --- efi.orig/arch/x86/platform/efi/efi.c
> +++ efi/arch/x86/platform/efi/efi.c
> @@ -789,35 +789,13 @@ void __init old_map_region(efi_memory_de
> pr_err("ioremap of 0x%llX failed!\n",
> (unsigned long long)md->phys_addr);
> }
> -/*
> - * This function will switch the EFI runtime services to virtual mode.
> - * Essentially, look through the EFI memmap and map every region that
> - * has the runtime attribute bit set in its memory descriptor and update
> - * that memory descriptor with the virtual address obtained from ioremap().
> - * This enables the runtime services to be called without having to
> - * thunk back into physical mode for every invocation.
> - */
> -void __init efi_enter_virtual_mode(void)
> -{
> - efi_memory_desc_t *md, *prev_md = NULL;
> - void *p, *new_memmap = NULL;
> - unsigned long size;
> - efi_status_t status;
> - u64 end, systab;
> - int count = 0;
>
> - efi.systab = NULL;
> -
> - /*
> - * We don't do virtual mode, since we don't do runtime services, on
> - * non-native EFI
> - */
> - if (!efi_is_native()) {
> - efi_unmap_memmap();
> - return;
> - }
> +/* Merge contiguous regions of the same type and attribute */
> +static void efi_merge_regions(void)
> +{
> + void *p;
> + efi_memory_desc_t *md, *prev_md = NULL;
>
> - /* Merge contiguous regions of the same type and attribute */
> for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
> u64 prev_size;
> md = p;
> @@ -844,6 +822,19 @@ void __init efi_enter_virtual_mode(void)
> prev_md = md;
>
> }
> +}
> +
> +/*
> + * Map efi memory ranges for runtime serivce
> + * Return the new memmap with updated virtual addrresses.
> + */
> +void efi_map_regions(void **new_memmap, int *count)
> +{
> + efi_memory_desc_t *md, *prev_md = NULL;
Applying: Cleanup efi_enter_virtual_mode function
/home/boris/kernel/linux-2.6/.git/rebase-apply/patch:42: space before tab in indent.
efi_memory_desc_t *md, *prev_md = NULL;
error: patch failed: arch/x86/platform/efi/efi.c:862
error: arch/x86/platform/efi/efi.c: patch does not apply
Patch failed at 0001 Cleanup efi_enter_virtual_mode function
And I know git can be a bit pickier than patch but it doesn't apply with patch
either:
$ patch -p1 --dry-run -i .git/rebase-apply/patch
checking file arch/x86/platform/efi/efi.c
Hunk #3 FAILED at 853.
1 out of 3 hunks FAILED
For some reason, this patch doesn't apply and the .rej looks funny.
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
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