File perf-powerpc-support-exposing-performance-monit... of Package perf

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File perf-powerpc-support-exposing-performance-monitor-counter-sprs-as-part-of-extended-regs.patch of Package perf

From: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Date: Wed Feb 3 01:55:37 2021 -0500
Subject: perf powerpc: Support exposing Performance Monitor Counter SPRs as part of extended regs
Git-commit: 068aeea3773a6f4c90303fdbb9318dd56aae8ac7
References: bsc#1198077
Signed-off-by: Tony Jones <tonyj@suse.de>

perf powerpc: Support exposing Performance Monitor Counter SPRs as part of extended regs
    
    To enable presenting of Performance Monitor Counter Registers (PMC1 to
    PMC6) as part of extended regsiters, this patch adds these to
    sample_reg_mask in the tool side (to use with -I? option).
    
    Simplified the PERF_REG_PMU_MASK_300/31 definition. Excluded the
    unsupported SPRs (MMCR3, SIER2, SIER3) from extended mask value for
    CPU_FTR_ARCH_300.
    
    Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
    Cc: Jiri Olsa <jolsa@kernel.org>
    Cc: Kajol Jain <kjain@linux.ibm.com>
    Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: linuxppc-dev@lists.ozlabs.org
    Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/arch/powerpc/include/uapi/asm/perf_regs.h b/tools/arch/powerpc/include/uapi/asm/perf_regs.h
index bdf5f10f8b9f..578b3ee86105 100644
--- a/tools/arch/powerpc/include/uapi/asm/perf_regs.h
+++ b/tools/arch/powerpc/include/uapi/asm/perf_regs.h
@@ -55,17 +55,33 @@ enum perf_event_powerpc_regs {
 	PERF_REG_POWERPC_MMCR3,
 	PERF_REG_POWERPC_SIER2,
 	PERF_REG_POWERPC_SIER3,
+	PERF_REG_POWERPC_PMC1,
+	PERF_REG_POWERPC_PMC2,
+	PERF_REG_POWERPC_PMC3,
+	PERF_REG_POWERPC_PMC4,
+	PERF_REG_POWERPC_PMC5,
+	PERF_REG_POWERPC_PMC6,
 	/* Max regs without the extended regs */
 	PERF_REG_POWERPC_MAX = PERF_REG_POWERPC_MMCRA + 1,
 };
 
 #define PERF_REG_PMU_MASK	((1ULL << PERF_REG_POWERPC_MAX) - 1)
 
-/* PERF_REG_EXTENDED_MASK value for CPU_FTR_ARCH_300 */
-#define PERF_REG_PMU_MASK_300   (((1ULL << (PERF_REG_POWERPC_MMCR2 + 1)) - 1) - PERF_REG_PMU_MASK)
-/* PERF_REG_EXTENDED_MASK value for CPU_FTR_ARCH_31 */
-#define PERF_REG_PMU_MASK_31   (((1ULL << (PERF_REG_POWERPC_SIER3 + 1)) - 1) - PERF_REG_PMU_MASK)
+/* Exclude MMCR3, SIER2, SIER3 for CPU_FTR_ARCH_300 */
+#define	PERF_EXCLUDE_REG_EXT_300	(7ULL << PERF_REG_POWERPC_MMCR3)
 
-#define PERF_REG_MAX_ISA_300   (PERF_REG_POWERPC_MMCR2 + 1)
-#define PERF_REG_MAX_ISA_31    (PERF_REG_POWERPC_SIER3 + 1)
+/*
+ * PERF_REG_EXTENDED_MASK value for CPU_FTR_ARCH_300
+ * includes 9 SPRS from MMCR0 to PMC6 excluding the
+ * unsupported SPRS in PERF_EXCLUDE_REG_EXT_300.
+ */
+#define PERF_REG_PMU_MASK_300   ((0xfffULL << PERF_REG_POWERPC_MMCR0) - PERF_EXCLUDE_REG_EXT_300)
+
+/*
+ * PERF_REG_EXTENDED_MASK value for CPU_FTR_ARCH_31
+ * includes 12 SPRs from MMCR0 to PMC6.
+ */
+#define PERF_REG_PMU_MASK_31   (0xfffULL << PERF_REG_POWERPC_MMCR0)
+
+#define PERF_REG_EXTENDED_MAX  (PERF_REG_POWERPC_PMC6 + 1)
 #endif /* _UAPI_ASM_POWERPC_PERF_REGS_H */
diff --git a/tools/perf/arch/powerpc/include/perf_regs.h b/tools/perf/arch/powerpc/include/perf_regs.h
index 63f3ac91049f..98b6f9eabfc3 100644
--- a/tools/perf/arch/powerpc/include/perf_regs.h
+++ b/tools/perf/arch/powerpc/include/perf_regs.h
@@ -71,6 +71,12 @@ static const char *reg_names[] = {
 	[PERF_REG_POWERPC_MMCR3] = "mmcr3",
 	[PERF_REG_POWERPC_SIER2] = "sier2",
 	[PERF_REG_POWERPC_SIER3] = "sier3",
+	[PERF_REG_POWERPC_PMC1] = "pmc1",
+	[PERF_REG_POWERPC_PMC2] = "pmc2",
+	[PERF_REG_POWERPC_PMC3] = "pmc3",
+	[PERF_REG_POWERPC_PMC4] = "pmc4",
+	[PERF_REG_POWERPC_PMC5] = "pmc5",
+	[PERF_REG_POWERPC_PMC6] = "pmc6",
 };
 
 static inline const char *perf_reg_name(int id)
diff --git a/tools/perf/arch/powerpc/util/perf_regs.c b/tools/perf/arch/powerpc/util/perf_regs.c
index 2b6d4704e3aa..8116a253f91f 100644
--- a/tools/perf/arch/powerpc/util/perf_regs.c
+++ b/tools/perf/arch/powerpc/util/perf_regs.c
@@ -68,6 +68,12 @@ const struct sample_reg sample_reg_masks[] = {
 	SMPL_REG(mmcr3, PERF_REG_POWERPC_MMCR3),
 	SMPL_REG(sier2, PERF_REG_POWERPC_SIER2),
 	SMPL_REG(sier3, PERF_REG_POWERPC_SIER3),
+	SMPL_REG(pmc1, PERF_REG_POWERPC_PMC1),
+	SMPL_REG(pmc2, PERF_REG_POWERPC_PMC2),
+	SMPL_REG(pmc3, PERF_REG_POWERPC_PMC3),
+	SMPL_REG(pmc4, PERF_REG_POWERPC_PMC4),
+	SMPL_REG(pmc5, PERF_REG_POWERPC_PMC5),
+	SMPL_REG(pmc6, PERF_REG_POWERPC_PMC6),
 	SMPL_REG_END
 };

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File perf-powerpc-support-exposing-performance-monitor-counter-sprs-as-part-of-extended-regs.patch of Package perf

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