summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/xmon/xmon.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 21:22:28 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 21:22:28 +0200
commitc70a4be130de333ea079c59da41cc959712bb01c (patch)
treeefa1b9a7aac979dcbf53ce89e2f8ffc61f6d2952 /arch/powerpc/xmon/xmon.c
parentMerge tag 'xtensa-20210429' of git://github.com/jcmvbkbc/linux-xtensa (diff)
parentpowerpc/signal32: Fix erroneous SIGSEGV on RT signal return (diff)
downloadlinux-c70a4be130de333ea079c59da41cc959712bb01c.tar.xz
linux-c70a4be130de333ea079c59da41cc959712bb01c.zip
Merge tag 'powerpc-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman: - Enable KFENCE for 32-bit. - Implement EBPF for 32-bit. - Convert 32-bit to do interrupt entry/exit in C. - Convert 64-bit BookE to do interrupt entry/exit in C. - Changes to our signal handling code to use user_access_begin/end() more extensively. - Add support for time namespaces (CONFIG_TIME_NS) - A series of fixes that allow us to reenable STRICT_KERNEL_RWX. - Other smaller features, fixes & cleanups. Thanks to Alexey Kardashevskiy, Andreas Schwab, Andrew Donnellan, Aneesh Kumar K.V, Athira Rajeev, Bhaskar Chowdhury, Bixuan Cui, Cédric Le Goater, Chen Huang, Chris Packham, Christophe Leroy, Christopher M. Riedl, Colin Ian King, Dan Carpenter, Daniel Axtens, Daniel Henrique Barboza, David Gibson, Davidlohr Bueso, Denis Efremov, dingsenjie, Dmitry Safonov, Dominic DeMarco, Fabiano Rosas, Ganesh Goudar, Geert Uytterhoeven, Geetika Moolchandani, Greg Kurz, Guenter Roeck, Haren Myneni, He Ying, Jiapeng Chong, Jordan Niethe, Laurent Dufour, Lee Jones, Leonardo Bras, Li Huafei, Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Nathan Chancellor, Nathan Lynch, Nicholas Piggin, Oliver O'Halloran, Paul Menzel, Pu Lehui, Randy Dunlap, Ravi Bangoria, Rosen Penev, Russell Currey, Santosh Sivaraj, Sebastian Andrzej Siewior, Segher Boessenkool, Shivaprasad G Bhat, Srikar Dronamraju, Stephen Rothwell, Thadeu Lima de Souza Cascardo, Thomas Gleixner, Tony Ambardar, Tyrel Datwyler, Vaibhav Jain, Vincenzo Frascino, Xiongwei Song, Yang Li, Yu Kuai, and Zhang Yunkai. * tag 'powerpc-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (302 commits) powerpc/signal32: Fix erroneous SIGSEGV on RT signal return powerpc: Avoid clang uninitialized warning in __get_user_size_allowed powerpc/papr_scm: Mark nvdimm as unarmed if needed during probe powerpc/kvm: Fix build error when PPC_MEM_KEYS/PPC_PSERIES=n powerpc/kasan: Fix shadow start address with modules powerpc/kernel/iommu: Use largepool as a last resort when !largealloc powerpc/kernel/iommu: Align size for IOMMU_PAGE_SIZE() to save TCEs powerpc/44x: fix spelling mistake in Kconfig "varients" -> "variants" powerpc/iommu: Annotate nested lock for lockdep powerpc/iommu: Do not immediately panic when failed IOMMU table allocation powerpc/iommu: Allocate it_map by vmalloc selftests/powerpc: remove unneeded semicolon powerpc/64s: remove unneeded semicolon powerpc/eeh: remove unneeded semicolon powerpc/selftests: Add selftest to test concurrent perf/ptrace events powerpc/selftests/perf-hwbreak: Add testcases for 2nd DAWR powerpc/selftests/perf-hwbreak: Coalesce event creation code powerpc/selftests/ptrace-hwbreak: Add testcases for 2nd DAWR powerpc/configs: Add IBMVNIC to some 64-bit configs selftests/powerpc: Add uaccess flush test ...
Diffstat (limited to 'arch/powerpc/xmon/xmon.c')
-rw-r--r--arch/powerpc/xmon/xmon.c76
1 files changed, 24 insertions, 52 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index bf7d69625a2e..c8173e92f19d 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -54,6 +54,7 @@
#include <asm/code-patching.h>
#include <asm/sections.h>
#include <asm/inst.h>
+#include <asm/interrupt.h>
#ifdef CONFIG_PPC64
#include <asm/hvcall.h>
@@ -605,7 +606,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi)
* debugger break (IPI). This is similar to
* crash_kexec_secondary().
*/
- if (TRAP(regs) != 0x100 || !wait_for_other_cpus(ncpus))
+ if (TRAP(regs) != INTERRUPT_SYSTEM_RESET || !wait_for_other_cpus(ncpus))
smp_send_debugger_break();
wait_for_other_cpus(ncpus);
@@ -615,7 +616,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi)
if (!locked_down) {
/* for breakpoint or single step, print curr insn */
- if (bp || TRAP(regs) == 0xd00)
+ if (bp || TRAP(regs) == INTERRUPT_TRACE)
ppc_inst_dump(regs->nip, 1, 0);
printf("enter ? for help\n");
}
@@ -684,7 +685,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi)
disable_surveillance();
if (!locked_down) {
/* for breakpoint or single step, print current insn */
- if (bp || TRAP(regs) == 0xd00)
+ if (bp || TRAP(regs) == INTERRUPT_TRACE)
ppc_inst_dump(regs->nip, 1, 0);
printf("enter ? for help\n");
}
@@ -1769,9 +1770,12 @@ static void excprint(struct pt_regs *fp)
printf(" sp: %lx\n", fp->gpr[1]);
printf(" msr: %lx\n", fp->msr);
- if (trap == 0x300 || trap == 0x380 || trap == 0x600 || trap == 0x200) {
+ if (trap == INTERRUPT_DATA_STORAGE ||
+ trap == INTERRUPT_DATA_SEGMENT ||
+ trap == INTERRUPT_ALIGNMENT ||
+ trap == INTERRUPT_MACHINE_CHECK) {
printf(" dar: %lx\n", fp->dar);
- if (trap != 0x380)
+ if (trap != INTERRUPT_DATA_SEGMENT)
printf(" dsisr: %lx\n", fp->dsisr);
}
@@ -1785,7 +1789,7 @@ static void excprint(struct pt_regs *fp)
current->pid, current->comm);
}
- if (trap == 0x700)
+ if (trap == INTERRUPT_PROGRAM)
print_bug_trap(fp);
printf(linux_banner);
@@ -1815,25 +1819,16 @@ static void prregs(struct pt_regs *fp)
}
#ifdef CONFIG_PPC64
- if (FULL_REGS(fp)) {
- for (n = 0; n < 16; ++n)
- printf("R%.2d = "REG" R%.2d = "REG"\n",
- n, fp->gpr[n], n+16, fp->gpr[n+16]);
- } else {
- for (n = 0; n < 7; ++n)
- printf("R%.2d = "REG" R%.2d = "REG"\n",
- n, fp->gpr[n], n+7, fp->gpr[n+7]);
- }
+#define R_PER_LINE 2
#else
+#define R_PER_LINE 4
+#endif
+
for (n = 0; n < 32; ++n) {
- printf("R%.2d = %.8lx%s", n, fp->gpr[n],
- (n & 3) == 3? "\n": " ");
- if (n == 12 && !FULL_REGS(fp)) {
- printf("\n");
- break;
- }
+ printf("R%.2d = "REG"%s", n, fp->gpr[n],
+ (n % R_PER_LINE) == R_PER_LINE - 1 ? "\n" : " ");
}
-#endif
+
printf("pc = ");
xmon_print_symbol(fp->nip, " ", "\n");
if (!trap_is_syscall(fp) && cpu_has_feature(CPU_FTR_CFAR)) {
@@ -1846,7 +1841,9 @@ static void prregs(struct pt_regs *fp)
printf("ctr = "REG" xer = "REG" trap = %4lx\n",
fp->ctr, fp->xer, fp->trap);
trap = TRAP(fp);
- if (trap == 0x300 || trap == 0x380 || trap == 0x600)
+ if (trap == INTERRUPT_DATA_STORAGE ||
+ trap == INTERRUPT_DATA_SEGMENT ||
+ trap == INTERRUPT_ALIGNMENT)
printf("dar = "REG" dsisr = %.8lx\n", fp->dar, fp->dsisr);
}
@@ -2727,30 +2724,6 @@ static void dump_all_xives(void)
dump_one_xive(cpu);
}
-static void dump_one_xive_irq(u32 num, struct irq_data *d)
-{
- xmon_xive_get_irq_config(num, d);
-}
-
-static void dump_all_xive_irq(void)
-{
- unsigned int i;
- struct irq_desc *desc;
-
- for_each_irq_desc(i, desc) {
- struct irq_data *d = irq_desc_get_irq_data(desc);
- unsigned int hwirq;
-
- if (!d)
- continue;
-
- hwirq = (unsigned int)irqd_to_hwirq(d);
- /* IPIs are special (HW number 0) */
- if (hwirq)
- dump_one_xive_irq(hwirq, d);
- }
-}
-
static void dump_xives(void)
{
unsigned long num;
@@ -2767,9 +2740,9 @@ static void dump_xives(void)
return;
} else if (c == 'i') {
if (scanhex(&num))
- dump_one_xive_irq(num, NULL);
+ xmon_xive_get_irq_config(num, NULL);
else
- dump_all_xive_irq();
+ xmon_xive_get_irq_all();
return;
}
@@ -2980,7 +2953,7 @@ generic_inst_dump(unsigned long adr, long count, int praddr,
if (!ppc_inst_prefixed(inst))
dump_func(ppc_inst_val(inst), adr);
else
- dump_func(ppc_inst_as_u64(inst), adr);
+ dump_func(ppc_inst_as_ulong(inst), adr);
printf("\n");
}
return adr - first_adr;
@@ -4212,8 +4185,7 @@ static void dump_spu_fields(struct spu *spu)
DUMP_FIELD(spu, "0x%p", pdata);
}
-int
-spu_inst_dump(unsigned long adr, long count, int praddr)
+static int spu_inst_dump(unsigned long adr, long count, int praddr)
{
return generic_inst_dump(adr, count, praddr, print_insn_spu);
}