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Subject[PATCH v12 08/10] powerpc/powernv: Thread IMC events detection
Date
Code to add support for detection of thread IMC events. It adds a new
domain IMC_DOMAIN_THREAD and it is determined with the help of the
"type" property in the imc device-tree.

Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Signed-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/imc-pmu.h | 2 ++
arch/powerpc/platforms/powernv/opal-imc.c | 4 +++-
2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/imc-pmu.h b/arch/powerpc/include/asm/imc-pmu.h
index 24a6112ca0b5..e71e0d77d1d7 100644
--- a/arch/powerpc/include/asm/imc-pmu.h
+++ b/arch/powerpc/include/asm/imc-pmu.h
@@ -107,6 +107,7 @@ struct imc_pmu_ref {

/* In-Memory Collection Counters Type */
enum {
+ IMC_COUNTER_PER_THREAD = 0x1,
IMC_COUNTER_PER_CORE = 0x4,
IMC_COUNTER_PER_CHIP = 0x10,
};
@@ -116,6 +117,7 @@ enum {
*/
#define IMC_DOMAIN_NEST 1
#define IMC_DOMAIN_CORE 2
+#define IMC_DOMAIN_THREAD 3

extern struct imc_pmu *per_nest_pmu_arr[IMC_MAX_PMUS];
extern struct imc_pmu *core_imc_pmu;
diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c
index 91b8dd8d7619..2f857ec826e6 100644
--- a/arch/powerpc/platforms/powernv/opal-imc.c
+++ b/arch/powerpc/platforms/powernv/opal-imc.c
@@ -380,7 +380,7 @@ static int imc_get_mem_addr_nest(struct device_node *node,
/*
* imc_pmu_create : Takes the parent device which is the pmu unit, pmu_index
* and domain as the inputs.
- * Allocates memory for the pmu, sets up its domain (NEST/CORE), and
+ * Allocates memory for the pmu, sets up its domain (NEST/CORE/THREAD), and
* calls imc_events_setup() to allocate memory for the events supported
* by this pmu. Assigns a name for the pmu.
*
@@ -531,6 +531,8 @@ static int opal_imc_counters_probe(struct platform_device *pdev)
domain = IMC_DOMAIN_NEST;
else if (type == IMC_COUNTER_PER_CORE)
domain = IMC_DOMAIN_CORE;
+ else if (type == IMC_COUNTER_PER_THREAD)
+ domain = IMC_DOMAIN_THREAD;
else
continue;
if (!imc_pmu_create(imc_dev, pmu_count, domain))
--
2.11.0
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