diff options
Diffstat (limited to 'core/utils.c')
-rw-r--r-- | core/utils.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/core/utils.c b/core/utils.c new file mode 100644 index 0000000..2bc57b1 --- /dev/null +++ b/core/utils.c @@ -0,0 +1,59 @@ +/* Copyright 2013-2014 IBM Corp. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + * implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <skiboot.h> +#include <lock.h> +#include <fsp.h> +#include <processor.h> + +void abort(void) +{ + static bool in_abort = false; + unsigned long hid0; + + if (in_abort) + for (;;) ; + in_abort = true; + + bust_locks = true; + + op_display(OP_FATAL, OP_MOD_CORE, 0x6666); + + fputs("Aborting!\n", stderr); + backtrace(); + + /* XXX FIXME: We should fsp_poll for a while to ensure any pending + * console writes have made it out, but until we have decent PSI + * link handling we must not do it forever. Polling can prevent the + * FSP from bringing the PSI link up and it can get stuck in a + * reboot loop. + */ + + hid0 = mfspr(SPR_HID0); + hid0 |= SPR_HID0_ENABLE_ATTN; + set_hid0(hid0); + trigger_attn(); + for (;;) ; +} + +char __attrconst tohex(uint8_t nibble) +{ + static const char __tohex[] = {'0','1','2','3','4','5','6','7','8','9', + 'A','B','C','D','E','F'}; + if (nibble > 0xf) + return '?'; + return __tohex[nibble]; +} |