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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-09-24 19:30:05 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-10-30 17:20:53 +1100
commit3d541c4b7f6efd55a98189afd1b2f1c9d048c1b3 (patch)
tree37ea005412feedefe836afd0752051b0c93f4f71 /arch/powerpc/platforms/chrp
parent188917e183cf9ad0374b571006d0fc6d48a7f447 (diff)
powerpc/chrp: Use the same RTAS daemon as pSeries
The CHRP code has some fishy timer based code to scan the RTAS event log, which uses a 1KB stack buffer and doesn't even use the results. The pSeries code as a nicer daemon that allows userspace to read the event log and basically uses the same RTAS interface This patch moves rtasd.c out of platform/pseries and makes it usable by CHRP, after removing the old crufty event log mechanism in there. The nvram logging part of the daemon is still only available on 64-bit since the underlying nvram management routines aren't currently shared. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/chrp')
-rw-r--r--arch/powerpc/platforms/chrp/Kconfig2
-rw-r--r--arch/powerpc/platforms/chrp/setup.c50
2 files changed, 2 insertions, 50 deletions
diff --git a/arch/powerpc/platforms/chrp/Kconfig b/arch/powerpc/platforms/chrp/Kconfig
index 37d438bd5b7..bc0b0efdc5f 100644
--- a/arch/powerpc/platforms/chrp/Kconfig
+++ b/arch/powerpc/platforms/chrp/Kconfig
@@ -5,6 +5,8 @@ config PPC_CHRP
select PPC_I8259
select PPC_INDIRECT_PCI
select PPC_RTAS
+ select PPC_RTAS_DAEMON
+ select RTAS_ERROR_LOGGING
select PPC_MPC106
select PPC_UDBG_16550
select PPC_NATIVE
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index cd4ad9aea76..52f3df3b4ca 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -364,19 +364,6 @@ void __init chrp_setup_arch(void)
if (ppc_md.progress) ppc_md.progress("Linux/PPC "UTS_RELEASE"\n", 0x0);
}
-void
-chrp_event_scan(unsigned long unused)
-{
- unsigned char log[1024];
- int ret = 0;
-
- /* XXX: we should loop until the hardware says no more error logs -- Cort */
- rtas_call(rtas_token("event-scan"), 4, 1, &ret, 0xffffffff, 0,
- __pa(log), 1024);
- mod_timer(&__get_cpu_var(heartbeat_timer),
- jiffies + event_scan_interval);
-}
-
static void chrp_8259_cascade(unsigned int irq, struct irq_desc *desc)
{
unsigned int cascade_irq = i8259_irq();
@@ -568,9 +555,6 @@ void __init chrp_init_IRQ(void)
void __init
chrp_init2(void)
{
- struct device_node *device;
- const unsigned int *p = NULL;
-
#ifdef CONFIG_NVRAM
chrp_nvram_init();
#endif
@@ -582,40 +566,6 @@ chrp_init2(void)
request_region(0x80,0x10,"dma page reg");
request_region(0xc0,0x20,"dma2");
- /* Get the event scan rate for the rtas so we know how
- * often it expects a heartbeat. -- Cort
- */
- device = of_find_node_by_name(NULL, "rtas");
- if (device)
- p = of_get_property(device, "rtas-event-scan-rate", NULL);
- if (p && *p) {
- /*
- * Arrange to call chrp_event_scan at least *p times
- * per minute. We use 59 rather than 60 here so that
- * the rate will be slightly higher than the minimum.
- * This all assumes we don't do hotplug CPU on any
- * machine that needs the event scans done.
- */
- unsigned long interval, offset;
- int cpu, ncpus;
- struct timer_list *timer;
-
- interval = HZ * 59 / *p;
- offset = HZ;
- ncpus = num_online_cpus();
- event_scan_interval = ncpus * interval;
- for (cpu = 0; cpu < ncpus; ++cpu) {
- timer = &per_cpu(heartbeat_timer, cpu);
- setup_timer(timer, chrp_event_scan, 0);
- timer->expires = jiffies + offset;
- add_timer_on(timer, cpu);
- offset += interval;
- }
- printk("RTAS Event Scan Rate: %u (%lu jiffies)\n",
- *p, interval);
- }
- of_node_put(device);
-
if (ppc_md.progress)
ppc_md.progress(" Have fun! ", 0x7777);
}