diff options
Diffstat (limited to 'arch/powerpc/kexec/file_load_64.c')
| -rw-r--r-- | arch/powerpc/kexec/file_load_64.c | 26 |
1 files changed, 8 insertions, 18 deletions
diff --git a/arch/powerpc/kexec/file_load_64.c b/arch/powerpc/kexec/file_load_64.c index 3e94c91c3cb1..f9eb49e23ec8 100644 --- a/arch/powerpc/kexec/file_load_64.c +++ b/arch/powerpc/kexec/file_load_64.c @@ -927,37 +927,27 @@ out: } /** - * kexec_fdt_totalsize_ppc64 - Return the estimated size needed to setup FDT - * for kexec/kdump kernel. - * @image: kexec image being loaded. + * kexec_extra_fdt_size_ppc64 - Return the estimated additional size needed to + * setup FDT for kexec/kdump kernel. + * @image: kexec image being loaded. * - * Returns the estimated size needed for kexec/kdump kernel FDT. + * Returns the estimated extra size needed for kexec/kdump kernel FDT. */ -unsigned int kexec_fdt_totalsize_ppc64(struct kimage *image) +unsigned int kexec_extra_fdt_size_ppc64(struct kimage *image) { - unsigned int fdt_size; u64 usm_entries; - /* - * The below estimate more than accounts for a typical kexec case where - * the additional space is to accommodate things like kexec cmdline, - * chosen node with properties for initrd start & end addresses and - * a property to indicate kexec boot.. - */ - fdt_size = fdt_totalsize(initial_boot_params) + (2 * COMMAND_LINE_SIZE); if (image->type != KEXEC_TYPE_CRASH) - return fdt_size; + return 0; /* - * For kdump kernel, also account for linux,usable-memory and + * For kdump kernel, account for linux,usable-memory and * linux,drconf-usable-memory properties. Get an approximate on the * number of usable memory entries and use for FDT size estimation. */ usm_entries = ((memblock_end_of_DRAM() / drmem_lmb_size()) + (2 * (resource_size(&crashk_res) / drmem_lmb_size()))); - fdt_size += (unsigned int)(usm_entries * sizeof(u64)); - - return fdt_size; + return (unsigned int)(usm_entries * sizeof(u64)); } /** |