int setup_purgatory_ppc64(struct kimage *image, const void *slave_code,
const void *fdt, unsigned long kernel_load_addr,
unsigned long fdt_load_addr);
-unsigned int kexec_fdt_totalsize_ppc64(struct kimage *image);
+unsigned int kexec_extra_fdt_size_ppc64(struct kimage *image);
int setup_new_fdt_ppc64(const struct kimage *image, void *fdt,
unsigned long initrd_load_addr,
unsigned long initrd_len, const char *cmdline);
}
/**
- * 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));
}
/**