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OpenCloudOS-Kernel/arch/powerpc/platforms/powernv
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Anton Blanchard bfe5fda8e7 powernv: Fix OPAL tracepoint code 
Patch c49f63530b ("powernv: Add OPAL tracepoints") has a spurious
store to the stack:

	ld      r12,opal_tracepoint_refcount@toc(r2);           \
	std     r12,32(r1);                                     \

The store was originally used to save the current tracepoint status
so the entry and the exit tracepoints were always balanced. In the
end I just created a separate path when tracepoints are enabled.

The offset on the stack used for this store is not valid for ABIv2
and it causes strange issues. I noticed it because OPAL console input
was broken.

Fixes: c49f63530b ("powernv: Add OPAL tracepoints")
Cc: <stable@vger.kernel.org> # v3.17+
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 		2015-01-12 16:40:02 +11:00
..
Kconfig powerpc/powernv: Enable POWER8 doorbell IPIs 2014-06-11 17:05:12 +10:00
Makefile powerpc/powernv: Invoke opal call to handle hmi. 2014-08-05 16:33:52 +10:00
eeh-ioda.c powerpc/eeh: Dump PHB diag-data early 2014-12-02 11:03:26 +11:00
eeh-powernv.c powerpc/eeh: Block CFG upon frozen Shiner adapter 2014-10-15 11:27:34 +11:00
opal-async.c rtc/tpo: Driver to support rtc and wakeup on PowerNV platform 2014-11-17 18:04:01 +11:00
opal-dump.c powerpc/powernv: Check OPAL dump calls exist before using 2014-09-25 23:14:36 +10:00
opal-elog.c powerpc/powernv: Check OPAL elog calls exist before using 2014-09-25 23:14:36 +10:00
opal-flash.c powerpc/powernv: Pass buffer size to OPAL validate flash call 2014-06-05 14:54:04 +10:00
opal-hmi.c powerpc/powernv: Fix the hmi event version check. 2014-11-27 09:32:52 +11:00
opal-lpc.c powerpc/powernv: Properly fix LPC debugfs endianness 2014-10-31 17:09:04 +11:00
opal-memory-errors.c powerpc/powernv: Switch powernv drivers to use machine_xxx_initcall() 2014-07-28 14:11:26 +10:00
opal-msglog.c powerpc/powernv: Fix reading of OPAL msglog 2014-06-11 17:03:36 +10:00
opal-nvram.c powerpc: Add printk levels to powernv platform code 2014-10-02 17:33:55 +10:00
opal-rtc.c rtc/tpo: Driver to support rtc and wakeup on PowerNV platform 2014-11-17 18:04:01 +11:00
opal-sensor.c hwmon: (ibmpowernv) Use platform 'id_table' to probe the device 2014-11-30 20:13:13 -08:00
opal-sysparam.c powernv: Fix permissions on sysparam sysfs entries 2014-06-11 17:03:15 +10:00
opal-tracepoints.c powerpc: Replace __get_cpu_var uses 2014-11-03 12:12:32 +11:00
opal-wrappers.S powernv: Fix OPAL tracepoint code 2015-01-12 16:40:02 +11:00
opal-xscom.c powerpc/powernv: Switch powernv drivers to use machine_xxx_initcall() 2014-07-28 14:11:26 +10:00
opal.c powerpc/powernv: Expose OPAL firmware symbol map 2014-12-15 13:21:44 +11:00
pci-ioda.c powerpc updates for 3.19 2014-12-11 17:48:14 -08:00
pci-p5ioc2.c powerpc: Remove more traces of bootmem 2014-11-19 21:41:51 +11:00
pci.c powerpc updates for 3.19 2014-12-11 17:48:14 -08:00
pci.h powerpc/powernv: Rename alloc_m64_pe() to reserve_m64_pe() 2014-11-14 17:24:23 +11:00
powernv.h powerpc/powernv: Enable Offline CPUs to enter deep idle states 2014-12-15 10:46:40 +11:00
rng.c powerpc/powernv: Switch powernv drivers to use machine_xxx_initcall() 2014-07-28 14:11:26 +10:00
setup.c powernv/powerpc: Add winkle support for offline cpus 2014-12-15 10:46:41 +11:00
smp.c powerpc/powernv: Ignore smt-enabled on Power8 and later 2014-12-18 19:59:21 +11:00
subcore-asm.S powerpc/powernv: Add support for POWER8 split core on powernv 2014-05-28 13:35:37 +10:00
subcore.c powernv/powerpc: Add winkle support for offline cpus 2014-12-15 10:46:41 +11:00
subcore.h powernv/powerpc: Add winkle support for offline cpus 2014-12-15 10:46:41 +11:00