12a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz/* provide some functions which dump the trace buffer, in a nice way for people 22a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * to read it, and understand what is going on 32a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * 42a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * Copyright 2004-2010 Analog Devices Inc. 52a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * 62a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * Licensed under the GPL-2 or later 72a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 82a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 92a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/kernel.h> 102a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/hardirq.h> 112a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/thread_info.h> 122a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/mm.h> 132214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov#include <linux/oom.h> 142214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov#include <linux/sched.h> 152a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/uaccess.h> 162a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/module.h> 172a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/kallsyms.h> 182a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/err.h> 192a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <linux/fs.h> 20df9ee29270c11dba7d0fe0b83ce47a4d8e8d2101David Howells#include <linux/irq.h> 212a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <asm/dma.h> 222a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <asm/trace.h> 232a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <asm/fixed_code.h> 242a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#include <asm/traps.h> 25d60805ad470aef52465f3dc982212f559d9f661bRobin Getz#include <asm/irq_handler.h> 263bed8d67469cc7129b0babc0211c32fa68408ce0David Howells#include <asm/pda.h> 272a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 282a12c4632db1c0c548a7023e63869b27c7789a92Robin Getzvoid decode_address(char *buf, unsigned long address) 292a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz{ 302a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz struct task_struct *p; 312a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz struct mm_struct *mm; 32af1be5a578a1ccc9961c55290f8c509a00a69036Anton Vorontsov unsigned long offset; 332a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz struct rb_node *n; 342a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 352a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifdef CONFIG_KALLSYMS 362a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned long symsize; 372a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz const char *symname; 382a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz char *modname; 392a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz char *delim = ":"; 402a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz char namebuf[128]; 412a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 422a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 432a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz buf += sprintf(buf, "<0x%08lx> ", address); 442a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 452a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifdef CONFIG_KALLSYMS 462a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* look up the address and see if we are in kernel space */ 472a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz symname = kallsyms_lookup(address, &symsize, &offset, &modname, namebuf); 482a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 492a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (symname) { 502a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* yeah! kernel space! */ 512a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (!modname) 522a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz modname = delim = ""; 532a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sprintf(buf, "{ %s%s%s%s + 0x%lx }", 542a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz delim, modname, delim, symname, 552a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (unsigned long)offset); 562a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return; 572a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 582a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 592a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 602a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (address >= FIXED_CODE_START && address < FIXED_CODE_END) { 612a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* Problem in fixed code section? */ 622a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz strcat(buf, "/* Maybe fixed code section */"); 632a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return; 642a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 652a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else if (address < CONFIG_BOOT_LOAD) { 662a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* Problem somewhere before the kernel start address */ 672a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz strcat(buf, "/* Maybe null pointer? */"); 682a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return; 692a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 702a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else if (address >= COREMMR_BASE) { 712a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz strcat(buf, "/* core mmrs */"); 722a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return; 732a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 742a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else if (address >= SYSMMR_BASE) { 752a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz strcat(buf, "/* system mmrs */"); 762a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return; 772a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 782a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else if (address >= L1_ROM_START && address < L1_ROM_START + L1_ROM_LENGTH) { 792a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz strcat(buf, "/* on-chip L1 ROM */"); 802a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return; 819a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 829a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } else if (address >= L1_SCRATCH_START && address < L1_SCRATCH_START + L1_SCRATCH_LENGTH) { 839a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz strcat(buf, "/* on-chip scratchpad */"); 849a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return; 859a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 869a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } else if (address >= physical_mem_end && address < ASYNC_BANK0_BASE) { 879a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz strcat(buf, "/* unconnected memory */"); 889a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return; 899a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 909a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } else if (address >= ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE && address < BOOT_ROM_START) { 919a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz strcat(buf, "/* reserved memory */"); 929a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return; 939a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 949a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } else if (address >= L1_DATA_A_START && address < L1_DATA_A_START + L1_DATA_A_LENGTH) { 959a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz strcat(buf, "/* on-chip Data Bank A */"); 969a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return; 979a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 989a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } else if (address >= L1_DATA_B_START && address < L1_DATA_B_START + L1_DATA_B_LENGTH) { 999a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz strcat(buf, "/* on-chip Data Bank B */"); 1009a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return; 1012a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 1022a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1032a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* 1042a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * Don't walk any of the vmas if we are oopsing, it has been known 1052a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * to cause problems - corrupt vmas (kernel crashes) cause double faults 1062a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 1072a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (oops_in_progress) { 1082a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz strcat(buf, "/* kernel dynamic memory (maybe user-space) */"); 1092a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return; 1102a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 1112a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1122a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* looks like we're off in user-land, so let's walk all the 1132a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * mappings of all our processes and see if we can't be a whee 1142a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * bit more specific 1152a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 116af1be5a578a1ccc9961c55290f8c509a00a69036Anton Vorontsov read_lock(&tasklist_lock); 1172a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz for_each_process(p) { 1182214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov struct task_struct *t; 1192a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1202214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov t = find_lock_task_mm(p); 1212214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov if (!t) 1222a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz continue; 1232214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov 1242214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov mm = t->mm; 1252214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov if (!down_read_trylock(&mm->mmap_sem)) 1262214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov goto __continue; 1272a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1282a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz for (n = rb_first(&mm->mm_rb); n; n = rb_next(n)) { 1292a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz struct vm_area_struct *vma; 1302a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1312a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz vma = rb_entry(n, struct vm_area_struct, vm_rb); 1322a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1332a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (address >= vma->vm_start && address < vma->vm_end) { 1342a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz char _tmpbuf[256]; 1352214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov char *name = t->comm; 1362a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz struct file *file = vma->vm_file; 1372a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1382a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (file) { 1392a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz char *d_name = d_path(&file->f_path, _tmpbuf, 1402a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sizeof(_tmpbuf)); 1412a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (!IS_ERR(d_name)) 1422a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz name = d_name; 1432a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 1442a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1452a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* FLAT does not have its text aligned to the start of 1462a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * the map while FDPIC ELF does ... 1472a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 1482a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1492a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* before we can check flat/fdpic, we need to 1502a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * make sure current is valid 1512a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 1522a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if ((unsigned long)current >= FIXED_CODE_START && 1532a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz !((unsigned long)current & 0x3)) { 1542a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (current->mm && 1552a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (address > current->mm->start_code) && 1562a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (address < current->mm->end_code)) 1572a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz offset = address - current->mm->start_code; 1582a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz else 1592a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz offset = (address - vma->vm_start) + 1602a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (vma->vm_pgoff << PAGE_SHIFT); 1612a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1622a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sprintf(buf, "[ %s + 0x%lx ]", name, offset); 1632a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else 1642a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sprintf(buf, "[ %s vma:0x%lx-0x%lx]", 1652a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz name, vma->vm_start, vma->vm_end); 1662a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1672a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz up_read(&mm->mmap_sem); 1682214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov task_unlock(t); 1692a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1702a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (buf[0] == '\0') 1712a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sprintf(buf, "[ %s ] dynamic memory", name); 1722a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1732a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz goto done; 1742a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 1752a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 1762a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1772a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz up_read(&mm->mmap_sem); 1782214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov__continue: 1792214f707de257c35773d5cd68cec9e31b91e01caAnton Vorontsov task_unlock(t); 1802a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 1812a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1822a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* 1832a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * we were unable to find this address anywhere, 1842a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * or some MMs were skipped because they were in use. 1852a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 1862a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sprintf(buf, "/* kernel dynamic memory */"); 1872a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1882a12c4632db1c0c548a7023e63869b27c7789a92Robin Getzdone: 189af1be5a578a1ccc9961c55290f8c509a00a69036Anton Vorontsov read_unlock(&tasklist_lock); 1902a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz} 1912a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1922a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#define EXPAND_LEN ((1 << CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN) * 256 - 1) 1932a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 1942a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz/* 1952a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * Similar to get_user, do some address checking, then dereference 1962a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * Return true on success, false on bad address 1972a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 1989a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzbool get_mem16(unsigned short *val, unsigned short *address) 1992a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz{ 2002a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned long addr = (unsigned long)address; 2012a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 2022a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* Check for odd addresses */ 2032a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (addr & 0x1) 2042a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return false; 2052a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 2062a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz switch (bfin_mem_access_type(addr, 2)) { 2072a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz case BFIN_MEM_ACCESS_CORE: 2082a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz case BFIN_MEM_ACCESS_CORE_ONLY: 2092a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz *val = *address; 2102a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return true; 2112a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz case BFIN_MEM_ACCESS_DMA: 2122a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz dma_memcpy(val, address, 2); 2132a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return true; 2142a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz case BFIN_MEM_ACCESS_ITEST: 2152a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz isram_memcpy(val, address, 2); 2162a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return true; 2172a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz default: /* invalid access */ 2182a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz return false; 2192a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 2202a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz} 2212a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 2229a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzbool get_instruction(unsigned int *val, unsigned short *address) 2239a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 2249a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz unsigned long addr = (unsigned long)address; 2259a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz unsigned short opcode0, opcode1; 2269a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2279a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz /* Check for odd addresses */ 2289a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (addr & 0x1) 2299a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return false; 2309a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2319a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz /* MMR region will never have instructions */ 2329a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (addr >= SYSMMR_BASE) 2339a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return false; 2349a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2359a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz /* Scratchpad will never have instructions */ 2369a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (addr >= L1_SCRATCH_START && addr < L1_SCRATCH_START + L1_SCRATCH_LENGTH) 2379a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return false; 2389a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2399a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz /* Data banks will never have instructions */ 2409a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (addr >= BOOT_ROM_START + BOOT_ROM_LENGTH && addr < L1_CODE_START) 2419a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return false; 2429a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2439a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (!get_mem16(&opcode0, address)) 2449a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return false; 2459a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2469a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz /* was this a 32-bit instruction? If so, get the next 16 bits */ 2479a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if ((opcode0 & 0xc000) == 0xc000) { 2489a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (!get_mem16(&opcode1, address + 1)) 2499a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return false; 2509a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz *val = (opcode0 << 16) + opcode1; 2519a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } else 2529a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz *val = opcode0; 2539a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2549a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return true; 2559a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 2569a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2579a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#if defined(CONFIG_DEBUG_BFIN_HWTRACE_ON) 2582a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz/* 2592a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * decode the instruction if we are printing out the trace, as it 2602a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * makes things easier to follow, without running it through objdump 2619a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz * Decode the change of flow, and the common load/store instructions 2629a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz * which are the main cause for faults, and discontinuities in the trace 2639a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz * buffer. 2642a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 2659a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2669a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define ProgCtrl_opcode 0x0000 2679a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define ProgCtrl_poprnd_bits 0 2689a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define ProgCtrl_poprnd_mask 0xf 2699a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define ProgCtrl_prgfunc_bits 4 2709a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define ProgCtrl_prgfunc_mask 0xf 2719a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define ProgCtrl_code_bits 8 2729a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define ProgCtrl_code_mask 0xff 2739a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2749a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_ProgCtrl_0(unsigned int opcode) 2759a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 2769a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int poprnd = ((opcode >> ProgCtrl_poprnd_bits) & ProgCtrl_poprnd_mask); 2779a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int prgfunc = ((opcode >> ProgCtrl_prgfunc_bits) & ProgCtrl_prgfunc_mask); 2789a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 2799a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (prgfunc == 0 && poprnd == 0) 2809a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("NOP"); 2819a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 1 && poprnd == 0) 2829a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("RTS"); 2839a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 1 && poprnd == 1) 2849a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("RTI"); 2859a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 1 && poprnd == 2) 2869a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("RTX"); 2879a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 1 && poprnd == 3) 2889a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("RTN"); 2899a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 1 && poprnd == 4) 2909a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("RTE"); 2919a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 2 && poprnd == 0) 2929a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("IDLE"); 2939a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 2 && poprnd == 3) 2949a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("CSYNC"); 2959a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 2 && poprnd == 4) 2969a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("SSYNC"); 2979a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 2 && poprnd == 5) 2989a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("EMUEXCPT"); 2999a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 3) 3009a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("CLI R%i", poprnd); 3019a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 4) 3029a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("STI R%i", poprnd); 3039a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 5) 3049a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("JUMP (P%i)", poprnd); 3059a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 6) 3069a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("CALL (P%i)", poprnd); 3079a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 7) 3089a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("CALL (PC + P%i)", poprnd); 3099a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 8) 3109a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("JUMP (PC + P%i", poprnd); 3119a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 9) 3129a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("RAISE %i", poprnd); 3139a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (prgfunc == 10) 3149a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("EXCPT %i", poprnd); 3159a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else 3169a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("0x%04x", opcode); 3179a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3189a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 3199a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3209a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_opcode 0x1000 3219a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_offset_bits 0 3229a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_offset_mask 0x3ff 3239a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_B_bits 10 3249a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_B_mask 0x1 3259a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_T_bits 11 3269a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_T_mask 0x1 3279a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_code_bits 12 3289a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BRCC_code_mask 0xf 3299a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3309a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_BRCC_0(unsigned int opcode) 3312a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz{ 3329a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int B = ((opcode >> BRCC_B_bits) & BRCC_B_mask); 3339a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int T = ((opcode >> BRCC_T_bits) & BRCC_T_mask); 3349a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3359a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("IF %sCC JUMP pcrel %s", T ? "" : "!", B ? "(BP)" : ""); 3369a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 3379a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3389a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define CALLa_opcode 0xe2000000 3399a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define CALLa_addr_bits 0 3409a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define CALLa_addr_mask 0xffffff 3419a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define CALLa_S_bits 24 3429a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define CALLa_S_mask 0x1 3439a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define CALLa_code_bits 25 3449a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define CALLa_code_mask 0x7f 3459a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3469a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_CALLa_0(unsigned int opcode) 3479a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 3489a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int S = ((opcode >> (CALLa_S_bits - 16)) & CALLa_S_mask); 3499a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3509a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (S) 3519a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("CALL pcrel"); 3529a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else 3539a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("JUMP.L"); 3549a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 3559a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3569a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_opcode 0xe0800000 3579a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_eoffset_bits 0 3589a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_eoffset_mask 0x3ff 3599a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_dontcare_bits 10 3609a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_dontcare_mask 0x3 3619a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_reg_bits 12 3629a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_reg_mask 0xf 3639a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_soffset_bits 16 3649a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_soffset_mask 0xf 3659a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_c_bits 20 3669a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_c_mask 0x1 3679a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_rop_bits 21 3689a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_rop_mask 0x3 3699a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_code_bits 23 3709a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LoopSetup_code_mask 0x1ff 3719a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3729a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_LoopSetup_0(unsigned int opcode) 3739a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 3749a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int c = ((opcode >> LoopSetup_c_bits) & LoopSetup_c_mask); 3759a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int reg = ((opcode >> LoopSetup_reg_bits) & LoopSetup_reg_mask); 3769a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int rop = ((opcode >> LoopSetup_rop_bits) & LoopSetup_rop_mask); 3779a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3789a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("LSETUP <> LC%i", c); 3799a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if ((rop & 1) == 1) 3809a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("= P%i", reg); 3819a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if ((rop & 2) == 2) 3829a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(" >> 0x1"); 3839a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 3849a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3859a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_opcode 0x9c00 3869a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_reg_bits 0 3879a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_reg_mask 0x7 3889a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_i_bits 3 3899a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_i_mask 0x3 3909a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_m_bits 5 3919a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_m_mask 0x3 3929a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_aop_bits 7 3939a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_aop_mask 0x3 3949a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_W_bits 9 3959a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_W_mask 0x1 3969a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_code_bits 10 3979a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define DspLDST_code_mask 0x3f 3989a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 3999a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_dspLDST_0(unsigned int opcode) 4009a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 4019a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int i = ((opcode >> DspLDST_i_bits) & DspLDST_i_mask); 4029a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int m = ((opcode >> DspLDST_m_bits) & DspLDST_m_mask); 4039a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int W = ((opcode >> DspLDST_W_bits) & DspLDST_W_mask); 4049a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int aop = ((opcode >> DspLDST_aop_bits) & DspLDST_aop_mask); 4059a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int reg = ((opcode >> DspLDST_reg_bits) & DspLDST_reg_mask); 4069a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4079a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (W == 0) { 4089a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("R%i", reg); 4099a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz switch (m) { 4109a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 0: 4119a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(" = "); 4129a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4139a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 1: 4149a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(".L = "); 4159a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4169a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 2: 4179a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(".W = "); 4189a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4199a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 4209a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 4219a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4229a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("[ I%i", i); 4239a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4249a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz switch (aop) { 4259a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 0: 4269a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("++ ]"); 4279a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4289a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 1: 4299a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("-- ]"); 4309a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4319a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 4329a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4339a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (W == 1) { 4349a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(" = R%i", reg); 4359a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz switch (m) { 4369a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 1: 4379a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(".L = "); 4389a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4399a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 2: 4409a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(".W = "); 4419a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4429a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 4439a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 4449a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 4459a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4469a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_opcode 0x9000 4479a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_reg_bits 0 4489a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_reg_mask 0x7 4499a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_ptr_bits 3 4509a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_ptr_mask 0x7 4519a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_Z_bits 6 4529a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_Z_mask 0x1 4539a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_aop_bits 7 4549a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_aop_mask 0x3 4559a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_W_bits 9 4569a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_W_mask 0x1 4579a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_sz_bits 10 4589a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_sz_mask 0x3 4599a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_code_bits 12 4609a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDST_code_mask 0xf 4619a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4629a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_LDST_0(unsigned int opcode) 4639a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 4649a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int Z = ((opcode >> LDST_Z_bits) & LDST_Z_mask); 4659a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int W = ((opcode >> LDST_W_bits) & LDST_W_mask); 4669a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int sz = ((opcode >> LDST_sz_bits) & LDST_sz_mask); 4679a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int aop = ((opcode >> LDST_aop_bits) & LDST_aop_mask); 4689a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int reg = ((opcode >> LDST_reg_bits) & LDST_reg_mask); 4699a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int ptr = ((opcode >> LDST_ptr_bits) & LDST_ptr_mask); 4709a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4719a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (W == 0) 4729a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("%s%i = ", (sz == 0 && Z == 1) ? "P" : "R", reg); 4739a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4749a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz switch (sz) { 4759a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 1: 4769a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("W"); 4779a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4789a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 2: 4799a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("B"); 4809a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4819a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 4829a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4839a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("[P%i", ptr); 4849a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4859a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz switch (aop) { 4869a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 0: 4879a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("++"); 4889a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4899a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz case 1: 4909a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("--"); 4919a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz break; 4929a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 4939a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("]"); 4949a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4959a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (W == 1) 4969a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(" = %s%i ", (sz == 0 && Z == 1) ? "P" : "R", reg); 4979a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 4989a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (sz) { 4999a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (Z) 5009a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(" (X)"); 5019a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else 5029a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(" (Z)"); 5039a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 5049a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 5059a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5069a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_opcode 0xa000 5079a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_reg_bit 0 5089a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_reg_mask 0x7 5099a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_ptr_bit 3 5109a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_ptr_mask 0x7 5119a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_offset_bit 6 5129a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_offset_mask 0xf 5139a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_op_bit 10 5149a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_op_mask 0x3 5159a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_W_bit 12 5169a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_W_mask 0x1 5179a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_code_bit 13 5189a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTii_code_mask 0x7 5199a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5209a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_LDSTii_0(unsigned int opcode) 5219a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 5229a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int reg = ((opcode >> LDSTii_reg_bit) & LDSTii_reg_mask); 5239a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int ptr = ((opcode >> LDSTii_ptr_bit) & LDSTii_ptr_mask); 5249a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int offset = ((opcode >> LDSTii_offset_bit) & LDSTii_offset_mask); 5259a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int op = ((opcode >> LDSTii_op_bit) & LDSTii_op_mask); 5269a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int W = ((opcode >> LDSTii_W_bit) & LDSTii_W_mask); 5279a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5289a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (W == 0) { 5299a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("%s%i = %s[P%i + %i]", op == 3 ? "R" : "P", reg, 5309a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz op == 1 || op == 2 ? "" : "W", ptr, offset); 5319a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (op == 2) 5329a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("(Z)"); 5339a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (op == 3) 5349a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("(X)"); 5359a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } else { 5369a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("%s[P%i + %i] = %s%i", op == 0 ? "" : "W", ptr, 5379a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz offset, op == 3 ? "P" : "R", reg); 5389a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 5399a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 5409a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5419a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_opcode 0xe4000000 5429a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_offset_bits 0 5439a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_offset_mask 0xffff 5449a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_reg_bits 16 5459a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_reg_mask 0x7 5469a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_ptr_bits 19 5479a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_ptr_mask 0x7 5489a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_sz_bits 22 5499a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_sz_mask 0x3 5509a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_Z_bits 24 5519a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_Z_mask 0x1 5529a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_W_bits 25 5539a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_W_mask 0x1 5549a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_code_bits 26 5559a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define LDSTidxI_code_mask 0x3f 5569a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5579a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_LDSTidxI_0(unsigned int opcode) 5589a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 5599a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int Z = ((opcode >> LDSTidxI_Z_bits) & LDSTidxI_Z_mask); 5609a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int W = ((opcode >> LDSTidxI_W_bits) & LDSTidxI_W_mask); 5619a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int sz = ((opcode >> LDSTidxI_sz_bits) & LDSTidxI_sz_mask); 5629a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int reg = ((opcode >> LDSTidxI_reg_bits) & LDSTidxI_reg_mask); 5639a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int ptr = ((opcode >> LDSTidxI_ptr_bits) & LDSTidxI_ptr_mask); 5649a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz int offset = ((opcode >> LDSTidxI_offset_bits) & LDSTidxI_offset_mask); 5659a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5669a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (W == 0) 5679a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("%s%i = ", sz == 0 && Z == 1 ? "P" : "R", reg); 5689a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5699a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (sz == 1) 5709a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("W"); 5719a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (sz == 2) 5729a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("B"); 5739a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5749a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("[P%i + %s0x%x]", ptr, offset & 0x20 ? "-" : "", 5759a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz (offset & 0x1f) << 2); 5769a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5779a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (W == 0 && sz != 0) { 5789a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (Z) 5799a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("(X)"); 5802a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz else 5819a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("(Z)"); 5822a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 5832a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 5849a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (W == 1) 5859a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("= %s%i", (sz == 0 && Z == 1) ? "P" : "R", reg); 5869a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5879a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 5889a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 5899a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_opcode(unsigned int opcode) 5909a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 5919a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#ifdef CONFIG_BUG 5929a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (opcode == BFIN_BUG_OPCODE) 5939a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("BUG"); 5949a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else 5959a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#endif 5969a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if ((opcode & 0xffffff00) == ProgCtrl_opcode) 5979a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_ProgCtrl_0(opcode); 5989a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if ((opcode & 0xfffff000) == BRCC_opcode) 5999a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_BRCC_0(opcode); 6009a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if ((opcode & 0xfffff000) == 0x2000) 6019a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("JUMP.S"); 6029a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if ((opcode & 0xfe000000) == CALLa_opcode) 6039a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_CALLa_0(opcode); 6049a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if ((opcode & 0xff8000C0) == LoopSetup_opcode) 6059a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_LoopSetup_0(opcode); 6069a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if ((opcode & 0xfffffc00) == DspLDST_opcode) 6079a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_dspLDST_0(opcode); 6089a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if ((opcode & 0xfffff000) == LDST_opcode) 6099a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_LDST_0(opcode); 6109a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if ((opcode & 0xffffe000) == LDSTii_opcode) 6119a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_LDSTii_0(opcode); 6129a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if ((opcode & 0xfc000000) == LDSTidxI_opcode) 6139a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_LDSTidxI_0(opcode); 6149a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else if (opcode & 0xffff0000) 6159a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("0x%08x", opcode); 6169a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz else 6179a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont("0x%04x", opcode); 6189a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz} 6199a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 6209a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz#define BIT_MULTI_INS 0x08000000 6219a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getzstatic void decode_instruction(unsigned short *address) 6229a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz{ 6239a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz unsigned int opcode; 6249a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 6259a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (!get_instruction(&opcode, address)) 6269a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return; 6279a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 6289a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_opcode(opcode); 6299a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz 6309a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz /* If things are a 32-bit instruction, it has the possibility of being 6319a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz * a multi-issue instruction (a 32-bit, and 2 16 bit instrucitions) 6329a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz * This test collidates with the unlink instruction, so disallow that 6339a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz */ 6349a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if ((opcode & 0xc0000000) == 0xc0000000 && 6359a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz (opcode & BIT_MULTI_INS) && 6369a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz (opcode & 0xe8000000) != 0xe8000000) { 6379a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(" || "); 6389a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (!get_instruction(&opcode, address + 2)) 6399a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return; 6409a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_opcode(opcode); 6419a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz pr_cont(" || "); 6429a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (!get_instruction(&opcode, address + 3)) 6439a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz return; 6449a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz decode_opcode(opcode); 6459a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz } 6462a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz} 6472a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 6482a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 6492a12c4632db1c0c548a7023e63869b27c7789a92Robin Getzvoid dump_bfin_trace_buffer(void) 6502a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz{ 6512a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON 652d60805ad470aef52465f3dc982212f559d9f661bRobin Getz int tflags, i = 0, fault = 0; 6532a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz char buf[150]; 6542a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned short *addr; 655d60805ad470aef52465f3dc982212f559d9f661bRobin Getz unsigned int cpu = raw_smp_processor_id(); 6562a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND 6572a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz int j, index; 6582a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 6592a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 6602a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz trace_buffer_save(tflags); 6612a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 662d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("Hardware Trace:\n"); 6632a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 6642a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND 665d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("WARNING: Expanded trace turned on - can not trace exceptions\n"); 6662a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 6672a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 6682a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (likely(bfin_read_TBUFSTAT() & TBUFCNT)) { 6692a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz for (; bfin_read_TBUFSTAT() & TBUFCNT; i++) { 670d60805ad470aef52465f3dc982212f559d9f661bRobin Getz addr = (unsigned short *)bfin_read_TBUF(); 671d60805ad470aef52465f3dc982212f559d9f661bRobin Getz decode_address(buf, (unsigned long)addr); 672d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("%4i Target : %s\n", i, buf); 673d60805ad470aef52465f3dc982212f559d9f661bRobin Getz /* Normally, the faulting instruction doesn't go into 674d60805ad470aef52465f3dc982212f559d9f661bRobin Getz * the trace buffer, (since it doesn't commit), so 675d60805ad470aef52465f3dc982212f559d9f661bRobin Getz * we print out the fault address here 676d60805ad470aef52465f3dc982212f559d9f661bRobin Getz */ 677a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz if (!fault && addr == ((unsigned short *)evt_ivhw)) { 678a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz addr = (unsigned short *)bfin_read_TBUF(); 679a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz decode_address(buf, (unsigned long)addr); 680a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz pr_notice(" FAULT : %s ", buf); 681a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz decode_instruction(addr); 682a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz pr_cont("\n"); 683a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz fault = 1; 684a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz continue; 685a80d5f449d1794d8e402f28cf3e1e9b57cb9f2d4Robin Getz } 686d60805ad470aef52465f3dc982212f559d9f661bRobin Getz if (!fault && addr == (unsigned short *)trap && 687d60805ad470aef52465f3dc982212f559d9f661bRobin Getz (cpu_pda[cpu].seqstat & SEQSTAT_EXCAUSE) > VEC_EXCPT15) { 688d60805ad470aef52465f3dc982212f559d9f661bRobin Getz decode_address(buf, cpu_pda[cpu].icplb_fault_addr); 689d60805ad470aef52465f3dc982212f559d9f661bRobin Getz pr_notice(" FAULT : %s ", buf); 690d60805ad470aef52465f3dc982212f559d9f661bRobin Getz decode_instruction((unsigned short *)cpu_pda[cpu].icplb_fault_addr); 691d60805ad470aef52465f3dc982212f559d9f661bRobin Getz pr_cont("\n"); 692d60805ad470aef52465f3dc982212f559d9f661bRobin Getz fault = 1; 693d60805ad470aef52465f3dc982212f559d9f661bRobin Getz } 6942a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz addr = (unsigned short *)bfin_read_TBUF(); 6952a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, (unsigned long)addr); 696d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" Source : %s ", buf); 6972a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_instruction(addr); 698d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont("\n"); 6992a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 7002a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 7012a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7022a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifdef CONFIG_DEBUG_BFIN_HWTRACE_EXPAND 7032a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (trace_buff_offset) 7042a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz index = trace_buff_offset / 4; 7052a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz else 7062a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz index = EXPAND_LEN; 7072a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7082a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz j = (1 << CONFIG_DEBUG_BFIN_HWTRACE_EXPAND_LEN) * 128; 7092a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz while (j) { 7102a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, software_trace_buff[index]); 711d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("%4i Target : %s\n", i, buf); 7122a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz index -= 1; 7132a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (index < 0) 7142a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz index = EXPAND_LEN; 7152a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, software_trace_buff[index]); 716d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" Source : %s ", buf); 7172a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_instruction((unsigned short *)software_trace_buff[index]); 718d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont("\n"); 7192a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz index -= 1; 7202a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (index < 0) 7212a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz index = EXPAND_LEN; 7222a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz j--; 7232a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz i++; 7242a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 7252a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 7262a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7272a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz trace_buffer_restore(tflags); 7282a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 7292a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz} 7302a12c4632db1c0c548a7023e63869b27c7789a92Robin GetzEXPORT_SYMBOL(dump_bfin_trace_buffer); 7312a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7322a12c4632db1c0c548a7023e63869b27c7789a92Robin Getzvoid dump_bfin_process(struct pt_regs *fp) 7332a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz{ 7342a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* We should be able to look at fp->ipend, but we don't push it on the 7352a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * stack all the time, so do this until we fix that */ 7362a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned int context = bfin_read_IPEND(); 7372a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7382a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (oops_in_progress) 739d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_emerg("Kernel OOPS in progress\n"); 7402a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7412a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (context & 0x0020 && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR) 742d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("HW Error context\n"); 7432a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz else if (context & 0x0020) 744d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("Deferred Exception context\n"); 7452a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz else if (context & 0x3FC0) 746d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("Interrupt context\n"); 7472a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz else if (context & 0x4000) 748d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("Deferred Interrupt context\n"); 7492a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz else if (context & 0x8000) 750d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("Kernel process context\n"); 7512a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7522a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* Because we are crashing, and pointers could be bad, we check things 7532a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * pretty closely before we use them 7542a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 7552a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if ((unsigned long)current >= FIXED_CODE_START && 7562a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz !((unsigned long)current & 0x3) && current->pid) { 757d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("CURRENT PROCESS:\n"); 7582a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (current->comm >= (char *)FIXED_CODE_START) 759d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("COMM=%s PID=%d", 7602a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz current->comm, current->pid); 7612a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz else 762d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("COMM= invalid"); 7632a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 764d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont(" CPU=%d\n", current_thread_info()->cpu); 765d28cff4b615c2da274922311cef024d52c839870Robin Getz if (!((unsigned long)current->mm & 0x3) && 766d28cff4b615c2da274922311cef024d52c839870Robin Getz (unsigned long)current->mm >= FIXED_CODE_START) { 767d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n", 7682a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (void *)current->mm->start_code, 7692a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (void *)current->mm->end_code, 7702a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (void *)current->mm->start_data, 771d28cff4b615c2da274922311cef024d52c839870Robin Getz (void *)current->mm->end_data); 772d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" BSS = 0x%p-0x%p USER-STACK = 0x%p\n\n", 7732a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (void *)current->mm->end_data, 7742a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (void *)current->mm->brk, 7752a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (void *)current->mm->start_stack); 776d28cff4b615c2da274922311cef024d52c839870Robin Getz } else 777d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("invalid mm\n"); 7782a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else 779d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("No Valid process in current context\n"); 7802a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz} 7812a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7822a12c4632db1c0c548a7023e63869b27c7789a92Robin Getzvoid dump_bfin_mem(struct pt_regs *fp) 7832a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz{ 7842a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned short *addr, *erraddr, val = 0, err = 0; 7852a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz char sti = 0, buf[6]; 7862a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7872a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz erraddr = (void *)fp->pc; 7882a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 789d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("return address: [0x%p]; contents of:", erraddr); 7902a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7912a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz for (addr = (unsigned short *)((unsigned long)erraddr & ~0xF) - 0x10; 7922a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz addr < (unsigned short *)((unsigned long)erraddr & ~0xF) + 0x10; 7932a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz addr++) { 7942a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (!((unsigned long)addr & 0xF)) 795d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("0x%p: ", addr); 7962a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 7979a95e2f1008ee433c496a81628cdde67acc8e4b1Robin Getz if (!get_mem16(&val, addr)) { 7982a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz val = 0; 7992a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sprintf(buf, "????"); 8002a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else 8012a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sprintf(buf, "%04x", val); 8022a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 8032a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (addr == erraddr) { 804d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont("[%s]", buf); 8052a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz err = val; 8062a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else 807d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont(" %s ", buf); 8082a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 8092a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* Do any previous instructions turn on interrupts? */ 8102a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (addr <= erraddr && /* in the past */ 8112a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz ((val >= 0x0040 && val <= 0x0047) || /* STI instruction */ 8122a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz val == 0x017b)) /* [SP++] = RETI */ 8132a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz sti = 1; 8142a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 8152a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 816d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont("\n"); 8172a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 8182a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* Hardware error interrupts can be deferred */ 8192a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (unlikely(sti && (fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR && 8202a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz oops_in_progress)){ 821d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("Looks like this was a deferred error - sorry\n"); 8222a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifndef CONFIG_DEBUG_HWERR 823d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("The remaining message may be meaningless\n"); 824d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("You should enable CONFIG_DEBUG_HWERR to get a better idea where it came from\n"); 8252a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#else 8262a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* If we are handling only one peripheral interrupt 8272a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * and current mm and pid are valid, and the last error 8282a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * was in that user space process's text area 8292a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz * print it out - because that is where the problem exists 8302a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz */ 8312a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if ((!(((fp)->ipend & ~0x30) & (((fp)->ipend & ~0x30) - 1))) && 8322a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (current->pid && current->mm)) { 8332a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* And the last RETI points to the current userspace context */ 8342a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if ((fp + 1)->pc >= current->mm->start_code && 8352a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (fp + 1)->pc <= current->mm->end_code) { 836d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("It might be better to look around here :\n"); 837d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("-------------------------------------------\n"); 8382a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz show_regs(fp + 1); 839d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("-------------------------------------------\n"); 8402a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 8412a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 8422a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 8432a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 8442a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz} 8452a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 8462a12c4632db1c0c548a7023e63869b27c7789a92Robin Getzvoid show_regs(struct pt_regs *fp) 8472a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz{ 8482a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz char buf[150]; 8492a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz struct irqaction *action; 8502a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned int i; 8512a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned long flags = 0; 8522a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned int cpu = raw_smp_processor_id(); 8532a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic(); 8542a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 855d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("\n"); 856a43cb95d547a061ed5bf1acb28e0f5fd575e26c1Tejun Heo show_regs_print_info(KERN_NOTICE); 857a43cb95d547a061ed5bf1acb28e0f5fd575e26c1Tejun Heo 8582a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (CPUID != bfin_cpuid()) 859d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("Compiled for cpu family 0x%04x (Rev %d), " 8602a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz "but running on:0x%04x (Rev %d)\n", 8612a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz CPUID, bfin_compiled_revid(), bfin_cpuid(), bfin_revid()); 8622a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 863d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("ADSP-%s-0.%d", 8642a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz CPU, bfin_compiled_revid()); 8652a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 8662a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (bfin_compiled_revid() != bfin_revid()) 867d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont("(Detected 0.%d)", bfin_revid()); 8682a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 869d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont(" %lu(MHz CCLK) %lu(MHz SCLK) (%s)\n", 8702a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz get_cclk()/1000000, get_sclk()/1000000, 8712a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifdef CONFIG_MPU 8722a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz "mpu on" 8732a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#else 8742a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz "mpu off" 8752a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 8762a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz ); 8772a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 878d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("%s", linux_banner); 8792a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 880d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("\nSEQUENCER STATUS:\t\t%s\n", print_tainted()); 881d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" SEQSTAT: %08lx IPEND: %04lx IMASK: %04lx SYSCFG: %04lx\n", 8822a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (long)fp->seqstat, fp->ipend, cpu_pda[raw_smp_processor_id()].ex_imask, fp->syscfg); 8832a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (fp->ipend & EVT_IRPTEN) 884d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" Global Interrupts Disabled (IPEND[4])\n"); 8852a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (!(cpu_pda[raw_smp_processor_id()].ex_imask & (EVT_IVG13 | EVT_IVG12 | EVT_IVG11 | 8862a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz EVT_IVG10 | EVT_IVG9 | EVT_IVG8 | EVT_IVG7 | EVT_IVTMR))) 887d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" Peripheral interrupts masked off\n"); 8882a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (!(cpu_pda[raw_smp_processor_id()].ex_imask & (EVT_IVG15 | EVT_IVG14))) 889d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" Kernel interrupts masked off\n"); 8902a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if ((fp->seqstat & SEQSTAT_EXCAUSE) == VEC_HWERR) { 891d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" HWERRCAUSE: 0x%lx\n", 8922a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (fp->seqstat & SEQSTAT_HWERRCAUSE) >> 14); 8932a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#ifdef EBIU_ERRMST 8942a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* If the error was from the EBIU, print it out */ 8952a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (bfin_read_EBIU_ERRMST() & CORE_ERROR) { 896d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" EBIU Error Reason : 0x%04x\n", 8972a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz bfin_read_EBIU_ERRMST()); 898d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" EBIU Error Address : 0x%08x\n", 8992a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz bfin_read_EBIU_ERRADD()); 9002a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 9012a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz#endif 9022a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 903d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" EXCAUSE : 0x%lx\n", 9042a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->seqstat & SEQSTAT_EXCAUSE); 9052a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz for (i = 2; i <= 15 ; i++) { 9062a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (fp->ipend & (1 << i)) { 9072a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (i != 4) { 9082a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, bfin_read32(EVT0 + 4*i)); 909d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" physical IVG%i asserted : %s\n", i, buf); 9102a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } else 911d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" interrupts disabled\n"); 9122a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 9132a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 9142a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 9152a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz /* if no interrupts are going off, don't print this out */ 9162a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (fp->ipend & ~0x3F) { 9172a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz for (i = 0; i < (NR_IRQS - 1); i++) { 91828a283aae3bdd5088246ca830247ec8393e3e06bThomas Gleixner struct irq_desc *desc = irq_to_desc(i); 9192a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (!in_atomic) 92028a283aae3bdd5088246ca830247ec8393e3e06bThomas Gleixner raw_spin_lock_irqsave(&desc->lock, flags); 9212a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 92228a283aae3bdd5088246ca830247ec8393e3e06bThomas Gleixner action = desc->action; 9232a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (!action) 9242a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz goto unlock; 9252a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 9262a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, (unsigned int)action->handler); 927d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" logical irq %3d mapped : %s", i, buf); 9282a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz for (action = action->next; action; action = action->next) { 9292a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, (unsigned int)action->handler); 930d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont(", %s", buf); 9312a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 932d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_cont("\n"); 9332a12c4632db1c0c548a7023e63869b27c7789a92Robin Getzunlock: 9342a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (!in_atomic) 93528a283aae3bdd5088246ca830247ec8393e3e06bThomas Gleixner raw_spin_unlock_irqrestore(&desc->lock, flags); 9362a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 9372a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 9382a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 9392a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, fp->rete); 940d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" RETE: %s\n", buf); 9412a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, fp->retn); 942d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" RETN: %s\n", buf); 9432a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, fp->retx); 944d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" RETX: %s\n", buf); 9452a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, fp->rets); 946d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" RETS: %s\n", buf); 9472a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, fp->pc); 948d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" PC : %s\n", buf); 9492a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 9502a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz if (((long)fp->seqstat & SEQSTAT_EXCAUSE) && 9512a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz (((long)fp->seqstat & SEQSTAT_EXCAUSE) != VEC_HWERR)) { 9522a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, cpu_pda[cpu].dcplb_fault_addr); 953d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("DCPLB_FAULT_ADDR: %s\n", buf); 9542a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz decode_address(buf, cpu_pda[cpu].icplb_fault_addr); 955d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("ICPLB_FAULT_ADDR: %s\n", buf); 9562a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz } 9572a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 958d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("PROCESSOR STATE:\n"); 959d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" R0 : %08lx R1 : %08lx R2 : %08lx R3 : %08lx\n", 9602a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->r0, fp->r1, fp->r2, fp->r3); 961d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" R4 : %08lx R5 : %08lx R6 : %08lx R7 : %08lx\n", 9622a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->r4, fp->r5, fp->r6, fp->r7); 963d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" P0 : %08lx P1 : %08lx P2 : %08lx P3 : %08lx\n", 9642a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->p0, fp->p1, fp->p2, fp->p3); 965d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" P4 : %08lx P5 : %08lx FP : %08lx SP : %08lx\n", 9662a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->p4, fp->p5, fp->fp, (long)fp); 967d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" LB0: %08lx LT0: %08lx LC0: %08lx\n", 9682a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->lb0, fp->lt0, fp->lc0); 969d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" LB1: %08lx LT1: %08lx LC1: %08lx\n", 9702a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->lb1, fp->lt1, fp->lc1); 971d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" B0 : %08lx L0 : %08lx M0 : %08lx I0 : %08lx\n", 9722a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->b0, fp->l0, fp->m0, fp->i0); 973d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" B1 : %08lx L1 : %08lx M1 : %08lx I1 : %08lx\n", 9742a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->b1, fp->l1, fp->m1, fp->i1); 975d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" B2 : %08lx L2 : %08lx M2 : %08lx I2 : %08lx\n", 9762a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->b2, fp->l2, fp->m2, fp->i2); 977d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice(" B3 : %08lx L3 : %08lx M3 : %08lx I3 : %08lx\n", 9782a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->b3, fp->l3, fp->m3, fp->i3); 979d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n", 9802a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz fp->a0w, fp->a0x, fp->a1w, fp->a1x); 9812a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 982d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("USP : %08lx ASTAT: %08lx\n", 9832a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz rdusp(), fp->astat); 9842a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz 985d28cff4b615c2da274922311cef024d52c839870Robin Getz pr_notice("\n"); 9862a12c4632db1c0c548a7023e63869b27c7789a92Robin Getz} 987