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selftests/powerpc/pmu: Add macro to extract mmcr3 and mmcra fields
Add macro and utility functions to fetch individual fields from Monitor Mode Control Register 3(MMCR3)and Monitor Mode Control Register A(MMCRA) PMU registers Signed-off-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220127072012.662451-9-kjain@linux.ibm.com
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@ -15,6 +15,7 @@
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#define MMCR0_FC56 0x00000010UL /* freeze counters 5 and 6 */
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#define MMCR0_PMCCEXT 0x00000200UL /* PMCCEXT control */
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#define MMCR1_RSQ 0x200000000000ULL /* radix scope qual field */
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#define BHRB_DISABLE 0x2000000000ULL /* MMCRA BHRB DISABLE bit */
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extern int ev_mask_pmcxsel, ev_shift_pmcxsel;
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extern int ev_mask_marked, ev_shift_marked;
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@ -163,3 +164,64 @@ static inline int get_mmcr2_l2l3(u64 mmcr2, int pmc)
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return ((mmcr2 & 0xf8) >> 3);
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return 0;
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}
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static inline int get_mmcr3_src(u64 mmcr3, int pmc)
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{
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if (pvr != POWER10)
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return 0;
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return ((mmcr3 >> ((49 - (15 * ((pmc) - 1))))) & 0x7fff);
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}
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static inline int get_mmcra_thd_cmp(u64 mmcra, int pmc)
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{
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if (pvr == POWER10)
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return ((mmcra >> 45) & 0x7ff);
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return ((mmcra >> 45) & 0x3ff);
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}
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static inline int get_mmcra_sm(u64 mmcra, int pmc)
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{
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return ((mmcra >> 42) & 0x3);
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}
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static inline int get_mmcra_bhrb_disable(u64 mmcra, int pmc)
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{
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if (pvr == POWER10)
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return mmcra & BHRB_DISABLE;
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return 0;
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}
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static inline int get_mmcra_ifm(u64 mmcra, int pmc)
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{
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return ((mmcra >> 30) & 0x3);
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}
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static inline int get_mmcra_thd_sel(u64 mmcra, int pmc)
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{
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return ((mmcra >> 16) & 0x7);
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}
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static inline int get_mmcra_thd_start(u64 mmcra, int pmc)
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{
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return ((mmcra >> 12) & 0xf);
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}
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static inline int get_mmcra_thd_stop(u64 mmcra, int pmc)
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{
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return ((mmcra >> 8) & 0xf);
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}
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static inline int get_mmcra_rand_samp_elig(u64 mmcra, int pmc)
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{
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return ((mmcra >> 4) & 0x7);
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}
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static inline int get_mmcra_sample_mode(u64 mmcra, int pmc)
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{
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return ((mmcra >> 1) & 0x3);
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}
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static inline int get_mmcra_marked(u64 mmcra, int pmc)
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{
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return mmcra & 0x1;
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}
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