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Tue, 21 Jul 2020 15:37:13 +0000 (GMT) Received: from pratiks-thinkpad.ibmuc.com (unknown [9.79.210.59]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 21 Jul 2020 15:37:13 +0000 (GMT) From: Pratik Rajesh Sampat To: mpe@ellerman.id.au, npiggin@gmail.com, benh@kernel.crashing.org, paulus@samba.org, mikey@neuling.org, ego@linux.vnet.ibm.com, svaidy@linux.ibm.com, psampat@linux.ibm.com, pratik.r.sampat@gmail.com, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 2/3] powerpc/powernv/idle: Rename pnv_first_spr_loss_level variable Date: Tue, 21 Jul 2020 21:07:07 +0530 Message-Id: <20200721153708.89057-3-psampat@linux.ibm.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20200721153708.89057-1-psampat@linux.ibm.com> References: <20200721153708.89057-1-psampat@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-07-21_09:2020-07-21, 2020-07-21 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 mlxscore=0 phishscore=0 priorityscore=1501 clxscore=1015 lowpriorityscore=0 adultscore=0 bulkscore=0 suspectscore=0 spamscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007210111 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Replace the variable name from using "pnv_first_spr_loss_level" to "deep_spr_loss_state". pnv_first_spr_loss_level is supposed to be the earliest state that has OPAL_PM_LOSE_FULL_CONTEXT set, in other places the kernel uses the "deep" states as terminology. Hence renaming the variable to be coherent to its semantics. Signed-off-by: Pratik Rajesh Sampat Acked-by: Gautham R. Shenoy --- arch/powerpc/platforms/powernv/idle.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c index 642abf0b8329..28462d59a8e1 100644 --- a/arch/powerpc/platforms/powernv/idle.c +++ b/arch/powerpc/platforms/powernv/idle.c @@ -48,7 +48,7 @@ static bool default_stop_found; * First stop state levels when SPR and TB loss can occur. */ static u64 pnv_first_tb_loss_level = MAX_STOP_STATE + 1; -static u64 pnv_first_spr_loss_level = MAX_STOP_STATE + 1; +static u64 deep_spr_loss_state = MAX_STOP_STATE + 1; /* * psscr value and mask of the deepest stop idle state. @@ -657,7 +657,7 @@ static unsigned long power9_idle_stop(unsigned long psscr, bool mmu_on) */ mmcr0 = mfspr(SPRN_MMCR0); } - if ((psscr & PSSCR_RL_MASK) >= pnv_first_spr_loss_level) { + if ((psscr & PSSCR_RL_MASK) >= deep_spr_loss_state) { sprs.lpcr = mfspr(SPRN_LPCR); sprs.hfscr = mfspr(SPRN_HFSCR); sprs.fscr = mfspr(SPRN_FSCR); @@ -741,7 +741,7 @@ static unsigned long power9_idle_stop(unsigned long psscr, bool mmu_on) * just always test PSSCR for SPR/TB state loss. */ pls = (psscr & PSSCR_PLS) >> PSSCR_PLS_SHIFT; - if (likely(pls < pnv_first_spr_loss_level)) { + if (likely(pls < deep_spr_loss_state)) { if (sprs_saved) atomic_stop_thread_idle(); goto out; @@ -1088,7 +1088,7 @@ static void __init pnv_power9_idle_init(void) * the deepest loss-less (OPAL_PM_STOP_INST_FAST) stop state. */ pnv_first_tb_loss_level = MAX_STOP_STATE + 1; - pnv_first_spr_loss_level = MAX_STOP_STATE + 1; + deep_spr_loss_state = MAX_STOP_STATE + 1; for (i = 0; i < nr_pnv_idle_states; i++) { int err; struct pnv_idle_states_t *state = &pnv_idle_states[i]; @@ -1099,8 +1099,8 @@ static void __init pnv_power9_idle_init(void) pnv_first_tb_loss_level = psscr_rl; if ((state->flags & OPAL_PM_LOSE_FULL_CONTEXT) && - (pnv_first_spr_loss_level > psscr_rl)) - pnv_first_spr_loss_level = psscr_rl; + (deep_spr_loss_state > psscr_rl)) + deep_spr_loss_state = psscr_rl; /* * The idle code does not deal with TB loss occurring @@ -1111,8 +1111,8 @@ static void __init pnv_power9_idle_init(void) * compatibility. */ if ((state->flags & OPAL_PM_TIMEBASE_STOP) && - (pnv_first_spr_loss_level > psscr_rl)) - pnv_first_spr_loss_level = psscr_rl; + (deep_spr_loss_state > psscr_rl)) + deep_spr_loss_state = psscr_rl; err = validate_psscr_val_mask(&state->psscr_val, &state->psscr_mask, @@ -1158,7 +1158,7 @@ static void __init pnv_power9_idle_init(void) } pr_info("cpuidle-powernv: First stop level that may lose SPRs = 0x%llx\n", - pnv_first_spr_loss_level); + deep_spr_loss_state); pr_info("cpuidle-powernv: First stop level that may lose timebase = 0x%llx\n", pnv_first_tb_loss_level);