Re: [RFC PATCH 4/7]powerpc/powernv: Add OPAL support for Nest pmu

[maddy]

On Thursday 12 March 2015 04:27 AM, Stewart Smith wrote:

Madhavan Srinivasan ma...@linux.vnet.ibm.com writes:

Nest Counters can be configured via PORE Engine and OPAL
provides an interface call to it. PORE Engine also does the
work of moving the counter data to memory.

Do you have the associated skiboot patch that implements this firmware
call? I haven't seen it on the skiboot list yet :)

Hi Stewart,

OPAL side code is under-developement. Will post the patches soon to 
the skiboot mailing list.


Regards
Maddy

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Re: [RFC PATCH 4/7]powerpc/powernv: Add OPAL support for Nest pmu

[Stewart Smith]

Madhavan Srinivasan ma...@linux.vnet.ibm.com writes:
 Nest Counters can be configured via PORE Engine and OPAL
 provides an interface call to it. PORE Engine also does the 
 work of moving the counter data to memory.  

Do you have the associated skiboot patch that implements this firmware
call? I haven't seen it on the skiboot list yet :)

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[RFC PATCH 4/7]powerpc/powernv: Add OPAL support for Nest pmu

[Madhavan Srinivasan]

Nest Counters can be configured via PORE Engine and OPAL
provides an interface call to it. PORE Engine also does the 
work of moving the counter data to memory.  

Signed-off-by: Madhavan Srinivasan ma...@linux.vnet.ibm.com
---
 arch/powerpc/include/asm/opal.h| 3 +++
 arch/powerpc/platforms/powernv/opal-wrappers.S | 1 +
 2 files changed, 4 insertions(+)

diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 9ee0a30..8ac586b 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -169,6 +169,7 @@ struct opal_sg_list {
 #define OPAL_IPMI_SEND 107
 #define OPAL_IPMI_RECV 108
 #define OPAL_I2C_REQUEST   109
+#define OPAL_UNCORE_CONTROL114
 
 /* Device tree flags */
 
@@ -932,6 +933,8 @@ int64_t opal_ipmi_recv(uint64_t interface, struct 
opal_ipmi_msg *msg,
 int64_t opal_i2c_request(uint64_t async_token, uint32_t bus_id,
 struct opal_i2c_request *oreq);
 
+int64_t opal_uncore_control(uint32_t value);
+
 /* Internal functions */
 extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
   int depth, void *data);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S 
b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 0509bca..df709c3 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -292,3 +292,4 @@ OPAL_CALL(opal_tpo_read,OPAL_READ_TPO);
 OPAL_CALL(opal_ipmi_send,  OPAL_IPMI_SEND);
 OPAL_CALL(opal_ipmi_recv,  OPAL_IPMI_RECV);
 OPAL_CALL(opal_i2c_request,OPAL_I2C_REQUEST);
+OPAL_CALL(opal_uncore_control, OPAL_UNCORE_CONTROL);
-- 
1.9.1

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