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Merge branch 'topic/xive' (early part) into next

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This merges the arch part of the XIVE support, leaving the final commit
with the KVM specific pieces dangling on the branch for Paul to merge
via the kvm-ppc tree.
This commit is contained in:
Michael Ellerman
2017-04-12 22:25:02 +10:00
parent 17ed4c8f81 08a1e650cc
commit 3c19d5ada1
34 changed files with 2671 additions and 150 deletions
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94
arch/powerpc/xmon/xmon.c
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@@ -31,6 +31,7 @@
#include <asm/debugfs.h>
#include <asm/ptrace.h>
#include <asm/smp.h>
#include <asm/string.h>
#include <asm/prom.h>
#include <asm/machdep.h>
@@ -49,7 +50,7 @@
#include <asm/reg.h>
#include <asm/debug.h>
#include <asm/hw_breakpoint.h>
#include <asm/xive.h>
#include <asm/opal.h>
#include <asm/firmware.h>
@@ -232,7 +233,13 @@ Commands:\n\
"\
dr dump stream of raw bytes\n\
dt dump the tracing buffers (uses printk)\n\
e print exception information\n\
"
#ifdef CONFIG_PPC_POWERNV
" dx# dump xive on CPU #\n\
dxi# dump xive irq state #\n\
dxa dump xive on all CPUs\n"
#endif
" e print exception information\n\
f flush cache\n\
la lookup symbol+offset of specified address\n\
ls lookup address of specified symbol\n\
@@ -2335,6 +2342,81 @@ static void dump_pacas(void)
}
#endif
#ifdef CONFIG_PPC_POWERNV
static void dump_one_xive(int cpu)
{
unsigned int hwid = get_hard_smp_processor_id(cpu);
opal_xive_dump(XIVE_DUMP_TM_HYP, hwid);
opal_xive_dump(XIVE_DUMP_TM_POOL, hwid);
opal_xive_dump(XIVE_DUMP_TM_OS, hwid);
opal_xive_dump(XIVE_DUMP_TM_USER, hwid);
opal_xive_dump(XIVE_DUMP_VP, hwid);
opal_xive_dump(XIVE_DUMP_EMU_STATE, hwid);
if (setjmp(bus_error_jmp) != 0) {
catch_memory_errors = 0;
printf("*** Error dumping xive on cpu %d\n", cpu);
return;
}
catch_memory_errors = 1;
sync();
xmon_xive_do_dump(cpu);
sync();
__delay(200);
catch_memory_errors = 0;
}
static void dump_all_xives(void)
{
int cpu;
if (num_possible_cpus() == 0) {
printf("No possible cpus, use 'dx #' to dump individual cpus\n");
return;
}
for_each_possible_cpu(cpu)
dump_one_xive(cpu);
}
static void dump_one_xive_irq(u32 num)
{
s64 rc;
__be64 vp;
u8 prio;
__be32 lirq;
rc = opal_xive_get_irq_config(num, &vp, &prio, &lirq);
xmon_printf("IRQ 0x%x config: vp=0x%llx prio=%d lirq=0x%x (rc=%lld)\n",
num, be64_to_cpu(vp), prio, be32_to_cpu(lirq), rc);
}
static void dump_xives(void)
{
unsigned long num;
int c;
c = inchar();
if (c == 'a') {
dump_all_xives();
return;
} else if (c == 'i') {
if (scanhex(&num))
dump_one_xive_irq(num);
return;
}
termch = c; /* Put c back, it wasn't 'a' */
if (scanhex(&num))
dump_one_xive(num);
else
dump_one_xive(xmon_owner);
}
#endif /* CONFIG_PPC_POWERNV */
static void dump_by_size(unsigned long addr, long count, int size)
{
unsigned char temp[16];
@@ -2383,6 +2465,14 @@ dump(void)
return;
}
#endif
#ifdef CONFIG_PPC_POWERNV
if (c == 'x') {
xmon_start_pagination();
dump_xives();
xmon_end_pagination();
return;
}
#endif
if (c == '\n')
termch = c;