/* * pSeries firmware setup code. * * Portions from arch/powerpc/platforms/pseries/setup.c: * Copyright (C) 1995 Linus Torvalds * Adapted from 'alpha' version by Gary Thomas * Modified by Cort Dougan (cort@cs.nmt.edu) * Modified by PPC64 Team, IBM Corp * * Portions from arch/powerpc/kernel/firmware.c * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org) * Modifications for ppc64: * Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com> * Copyright (C) 2005 Stephen Rothwell, IBM Corporation * * Copyright 2006 IBM Corporation. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <asm/firmware.h> #include <asm/prom.h> #include <asm/udbg.h> #include "pseries.h" typedef struct { unsigned long val; char * name; } firmware_feature_t; static __initdata firmware_feature_t firmware_features_table[FIRMWARE_MAX_FEATURES] = { {FW_FEATURE_PFT, "hcall-pft"}, {FW_FEATURE_TCE, "hcall-tce"}, {FW_FEATURE_SPRG0, "hcall-sprg0"}, {FW_FEATURE_DABR, "hcall-dabr"}, {FW_FEATURE_COPY, "hcall-copy"}, {FW_FEATURE_ASR, "hcall-asr"}, {FW_FEATURE_DEBUG, "hcall-debug"}, {FW_FEATURE_PERF, "hcall-perf"}, {FW_FEATURE_DUMP, "hcall-dump"}, {FW_FEATURE_INTERRUPT, "hcall-interrupt"}, {FW_FEATURE_MIGRATE, "hcall-migrate"}, {FW_FEATURE_PERFMON, "hcall-perfmon"}, {FW_FEATURE_CRQ, "hcall-crq"}, {FW_FEATURE_VIO, "hcall-vio"}, {FW_FEATURE_RDMA, "hcall-rdma"}, {FW_FEATURE_LLAN, "hcall-lLAN"}, {FW_FEATURE_BULK, "hcall-bulk"}, {FW_FEATURE_XDABR, "hcall-xdabr"}, {FW_FEATURE_MULTITCE, "hcall-multi-tce"}, {FW_FEATURE_SPLPAR, "hcall-splpar"}, {FW_FEATURE_BULK_REMOVE, "hcall-bulk"}, }; /* Build up the firmware features bitmask using the contents of * device-tree/ibm,hypertas-functions. Ultimately this functionality may * be moved into prom.c prom_init(). */ void __init fw_feature_init(const char *hypertas, unsigned long len) { const char *s; int i; pr_debug(" -> fw_feature_init()\n"); for (s = hypertas; s < hypertas + len; s += strlen(s) + 1) { for (i = 0; i < FIRMWARE_MAX_FEATURES; i++) { /* check value against table of strings */ if (!firmware_features_table[i].name || strcmp(firmware_features_table[i].name, s)) continue; /* we have a match */ powerpc_firmware_features |= firmware_features_table[i].val; break; } } pr_debug(" <- fw_feature_init()\n"); }