Messages in this thread Patch in this message | | | From | Madhavan Srinivasan <> | Subject | [PATCH v6 09/11] powerpc/powernv: Thread IMC events detection | Date | Mon, 3 Apr 2017 20:25:06 +0530 |
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From: Hemant Kumar <hemant@linux.vnet.ibm.com>
Patch adds support for detection of thread IMC events. It adds a new domain IMC_DOMAIN_THREAD and it is determined with the help of the compatibility string "ibm,imc-counters-thread" based on 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/perf/imc-pmu.c | 1 + arch/powerpc/platforms/powernv/opal-imc.c | 9 ++++++++- 3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/imc-pmu.h b/arch/powerpc/include/asm/imc-pmu.h index 4aa63191456a..c63bc78fd6f6 100644 --- a/arch/powerpc/include/asm/imc-pmu.h +++ b/arch/powerpc/include/asm/imc-pmu.h @@ -29,6 +29,7 @@ #define IMC_DTB_COMPAT "ibm,opal-in-memory-counters" #define IMC_DTB_NEST_COMPAT "ibm,imc-counters-nest" #define IMC_DTB_CORE_COMPAT "ibm,imc-counters-core" +#define IMC_DTB_THREAD_COMPAT "ibm,imc-counters-thread" /* * Structure to hold per chip specific memory address @@ -67,6 +68,7 @@ struct imc_pmu { */ #define IMC_DOMAIN_NEST 1 #define IMC_DOMAIN_CORE 2 +#define IMC_DOMAIN_THREAD 3 #define IMC_DOMAIN_UNKNOWN -1 int imc_get_domain(struct device_node *pmu_dev); diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c index 45f9b35142a7..35b3564747e2 100644 --- a/arch/powerpc/perf/imc-pmu.c +++ b/arch/powerpc/perf/imc-pmu.c @@ -33,6 +33,7 @@ struct imc_pmu *core_imc_pmu; /* Needed for sanity check */ extern u64 nest_max_offset; extern u64 core_max_offset; +extern u64 thread_max_offset; PMU_FORMAT_ATTR(event, "config:0-20"); static struct attribute *imc_format_attrs[] = { diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c index f261fc933959..ac625cf13875 100644 --- a/arch/powerpc/platforms/powernv/opal-imc.c +++ b/arch/powerpc/platforms/powernv/opal-imc.c @@ -40,6 +40,7 @@ extern int init_imc_pmu(struct imc_events *events, int idx, struct imc_pmu *pmu_ptr); u64 nest_max_offset; u64 core_max_offset; +u64 thread_max_offset; static int imc_event_info(char *name, struct imc_events *events) { @@ -87,6 +88,10 @@ static void update_max_value(u32 value, int pmu_domain) if (core_max_offset < value) core_max_offset = value; break; + case IMC_DOMAIN_THREAD: + if (thread_max_offset < value) + thread_max_offset = value; + break; default: /* Unknown domain, return */ return; @@ -240,6 +245,8 @@ int imc_get_domain(struct device_node *pmu_dev) return IMC_DOMAIN_NEST; if (of_device_is_compatible(pmu_dev, IMC_DTB_CORE_COMPAT)) return IMC_DOMAIN_CORE; + if (of_device_is_compatible(pmu_dev, IMC_DTB_THREAD_COMPAT)) + return IMC_DOMAIN_THREAD; else return IMC_DOMAIN_UNKNOWN; } @@ -278,7 +285,7 @@ static void imc_free_events(struct imc_events *events, int nr_entries) /* * imc_pmu_create : Takes the parent device which is the pmu unit and a * pmu_index as the inputs. - * Allocates memory for the pmu, sets up its domain (NEST or CORE), and + * Allocates memory for the pmu, sets up its domain (NEST/CORE/THREAD), and * allocates memory for the events supported by this pmu. Assigns a name for * the pmu. Calls imc_events_node_parser() to setup the individual events. * If everything goes fine, it calls, init_imc_pmu() to setup the pmu device -- 2.7.4
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