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charset="utf-8" Extend idle state detection to POWER11 by updating the PVR check. This ensures POWER11 correctly recognizes supported stop states, similar to POWER9 and POWER10. Reviewed-by: Mahesh Salgaonkar Signed-off-by: Aboorva Devarajan --- Without Patch: (Power11 - PowerNV systems) CPUidle driver: powernv_idle CPUidle governor: menu analyzing CPU 927: Number of idle states: 1 Available idle states: snooze snooze: Flags/Description: snooze Latency: 0 Usage: 251631 Duration: 207497715900 With Patch: (Power11 - PowerNV systems) CPUidle driver: powernv_idle CPUidle governor: menu analyzing CPU 959: Number of idle states: 4 Available idle states: snooze stop0_lite stop0 stop3 snooze: Flags/Description: snooze Latency: 0 Usage: 2 Duration: 33 stop0_lite: Flags/Description: stop0_lite Latency: 1 Usage: 1 Duration: 52 stop0: Flags/Description: stop0 Latency: 10 Usage: 13 Duration: 1920 stop3: Flags/Description: stop3 Latency: 45 Usage: 381 Duration: 21638478 arch/powerpc/platforms/powernv/idle.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms= /powernv/idle.c index d98b933e4984..10f4d7d5eb44 100644 --- a/arch/powerpc/platforms/powernv/idle.c +++ b/arch/powerpc/platforms/powernv/idle.c @@ -1171,8 +1171,8 @@ static void __init pnv_arch300_idle_init(void) u64 max_residency_ns =3D 0; int i; =20 - /* stop is not really architected, we only have p9,p10 drivers */ - if (!pvr_version_is(PVR_POWER10) && !pvr_version_is(PVR_POWER9)) + /* stop is not really architected, we only have p9,p10 and p11 drivers */ + if (!(PVR_VER(mfspr(SPRN_PVR)) >=3D PVR_POWER9)) return; =20 /* @@ -1189,8 +1189,8 @@ static void __init pnv_arch300_idle_init(void) struct pnv_idle_states_t *state =3D &pnv_idle_states[i]; u64 psscr_rl =3D state->psscr_val & PSSCR_RL_MASK; =20 - /* No deep loss driver implemented for POWER10 yet */ - if (pvr_version_is(PVR_POWER10) && + /* No deep loss driver implemented for POWER10 and POWER11 yet */ + if ((PVR_VER(mfspr(SPRN_PVR)) >=3D PVR_POWER10) && state->flags & (OPAL_PM_TIMEBASE_STOP|OPAL_PM_LOSE_FULL_CONTEXT)) continue; =20 --=20 2.49.0