tools/testing/selftests/powerpc: Enable pmu selftests for power11

Add check for power11 pvr in the selftest utility
functions. Selftests uses pvr value to check for platform
support inorder to run the tests. pvr is also used to
send the extended mask value to capture sampling registers.

Update some of the utility functions to use hwcap2 inorder
to return platform specific bits from sampling registers.

Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250113075858.45137-1-atrajeev@linux.vnet.ibm.com

diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
index eac6420abdf118697f0feb385308faaa3d3e41c0..c52d8bc2a5dc3c272c57ae95a17dba0f40473718 100644 (file)
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
@@ -59,6 +59,7 @@ static void init_ev_encodes(void)
        ev_shift_thd_stop = 32;
 
        switch (pvr) {
+       case POWER11:
        case POWER10:
                ev_mask_thd_cmp = 0x3ffff;
                ev_shift_thd_cmp = 0;
@@ -129,8 +130,14 @@ int platform_check_for_tests(void)
         * Check for supported platforms
         * for sampling test
         */
-       if ((pvr != POWER10) && (pvr != POWER9))
+       switch (pvr) {
+       case POWER11:
+       case POWER10:
+       case POWER9:
+               break;
+       default:
                goto out;
+       }
 
        /*
         * Check PMU driver registered by looking for
@@ -499,6 +506,8 @@ static bool auxv_generic_compat_pmu(void)
                base_pvr = POWER9;
        else if (!strcmp(auxv_base_platform(), "power10"))
                base_pvr = POWER10;
+       else if (!strcmp(auxv_base_platform(), "power11"))
+               base_pvr = POWER11;
 
        return (!base_pvr);
 }

diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h
index 64e25cce1435c8ec4f1d62a963dc035cff225f41..09c5abe237af16471638318f8ba138b91c4f15e6 100644 (file)
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h
@@ -8,10 +8,12 @@
 #include <sys/stat.h>
 #include "../event.h"
 
+#define POWER11 0x82
 #define POWER10 0x80
 #define POWER9  0x4e
 #define PERF_POWER9_MASK        0x7f8ffffffffffff
 #define PERF_POWER10_MASK       0x7ffffffffffffff
+#define PERF_POWER11_MASK       PERF_POWER10_MASK
 
 #define MMCR0_FC56      0x00000010UL /* freeze counters 5 and 6 */
 #define MMCR0_PMCCEXT   0x00000200UL /* PMCCEXT control */
@@ -165,21 +167,21 @@ static inline int get_mmcr2_fcta(u64 mmcr2, int pmc)
 
 static inline int get_mmcr2_l2l3(u64 mmcr2, int pmc)
 {
-       if (pvr == POWER10)
+       if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
                return ((mmcr2 & 0xf8) >> 3);
        return 0;
 }
 
 static inline int get_mmcr3_src(u64 mmcr3, int pmc)
 {
-       if (pvr != POWER10)
+       if (!have_hwcap2(PPC_FEATURE2_ARCH_3_1))
                return 0;
        return ((mmcr3 >> ((49 - (15 * ((pmc) - 1))))) & 0x7fff);
 }
 
 static inline int get_mmcra_thd_cmp(u64 mmcra, int pmc)
 {
-       if (pvr == POWER10)
+       if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
                return ((mmcra >> 45) & 0x7ff);
        return ((mmcra >> 45) & 0x3ff);
 }
@@ -191,7 +193,7 @@ static inline int get_mmcra_sm(u64 mmcra, int pmc)
 
 static inline u64 get_mmcra_bhrb_disable(u64 mmcra, int pmc)
 {
-       if (pvr == POWER10)
+       if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
                return mmcra & BHRB_DISABLE;
        return 0;
 }