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Message-Id: <1484039224-5630-3-git-send-email-ego@linux.vnet.ibm.com>
Date: Tue, 10 Jan 2017 14:37:01 +0530
From: "Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>
To: Michael Ellerman <mpe@...erman.id.au>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Michael Neuling <mikey@...ling.org>,
Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
"Shreyas B. Prabhu" <shreyasbp@...il.com>,
Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>,
Stewart Smith <stewart@...ux.vnet.ibm.com>,
Balbir Singh <bsingharora@...il.com>,
"Oliver O'Halloran" <oohall@...il.com>
Cc: linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
Rob Herring <robh+dt@...nel.org>, <mark.rutland@....com>,
"Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>
Subject: [PATCH v5 2/5] powernv:stop: Uniformly rename power9 to arch300
From: "Gautham R. Shenoy" <ego@...ux.vnet.ibm.com>
Balbir pointed out that in idle_book3s.S and powernv/idle.c some
functions and variables had power9 in their names while some others
had arch300.
This patch uniformly renames all instances of "power9" in the
variables/function/comments occuring in these files to "arch300" in
order to make them consistent.
Signed-off-by: Gautham R. Shenoy <ego@...ux.vnet.ibm.com>
---
New patch in v5
arch/powerpc/include/asm/processor.h | 2 +-
arch/powerpc/kernel/idle_book3s.S | 13 +++++++------
arch/powerpc/platforms/powernv/idle.c | 6 +++---
arch/powerpc/platforms/powernv/smp.c | 2 +-
drivers/cpuidle/cpuidle-powernv.c | 2 +-
5 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index c07c31b..4b47308 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -458,7 +458,7 @@ static inline unsigned long get_clean_sp(unsigned long sp, int is_32)
extern unsigned long power7_nap(int check_irq);
extern unsigned long power7_sleep(void);
extern unsigned long power7_winkle(void);
-extern unsigned long power9_idle_stop(unsigned long stop_level);
+extern unsigned long arch300_idle_stop(unsigned long stop_level);
extern void flush_instruction_cache(void);
extern void hard_reset_now(void);
diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S
index be90e2f..7f6657f 100644
--- a/arch/powerpc/kernel/idle_book3s.S
+++ b/arch/powerpc/kernel/idle_book3s.S
@@ -106,8 +106,9 @@ core_idle_lock_held:
/*
* Pass requested state in r3:
- * r3 - PNV_THREAD_NAP/SLEEP/WINKLE in POWER8
- * - Requested STOP state in POWER9
+ * r3 - PNV_THREAD_NAP/SLEEP/WINKLE on ISA 2.07 or less
+ (POWER7,POWER8)
+ * - Requested STOP state on ISA 3.0 CPUs
*
* To check IRQ_HAPPENED in r4
* 0 - don't check
@@ -357,7 +358,7 @@ ALT_FTR_SECTION_END_NESTED_IFSET(CPU_FTR_ARCH_207S, 66); \
/*
* r3 - requested stop state
*/
-_GLOBAL(power9_idle_stop)
+_GLOBAL(arch300_idle_stop)
LOAD_REG_IMMEDIATE(r4, PSSCR_HV_TEMPLATE)
or r4,r4,r3
mtspr SPRN_PSSCR, r4
@@ -377,7 +378,7 @@ _GLOBAL(pnv_restore_hyp_resource)
BEGIN_FTR_SECTION
ld r2,PACATOC(r13);
/*
- * POWER ISA 3. Use PSSCR to determine if we
+ * POWER ISA 3.0. Use PSSCR to determine if we
* are waking up from deep idle state
*/
LOAD_REG_ADDRBASE(r5,pnv_first_deep_stop_state)
@@ -429,8 +430,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
/*
* Called if waking up from idle state which can cause either partial or
* complete hyp state loss.
- * In POWER8, called if waking up from fastsleep or winkle
- * In POWER9, called if waking up from stop state >= pnv_first_deep_stop_state
+ * In ISA 2.07 (POWER8),called if waking up from fastsleep or winkle
+ * In ISA 3.0, called if waking up from stop state >= pnv_first_deep_stop_state
*
* r13 - PACA
* cr3 - gt if waking up with partial/complete hypervisor state loss
diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c
index 479c256..c3a2fac 100644
--- a/arch/powerpc/platforms/powernv/idle.c
+++ b/arch/powerpc/platforms/powernv/idle.c
@@ -241,10 +241,10 @@ static DEVICE_ATTR(fastsleep_workaround_applyonce, 0600,
/*
* Used for ppc_md.power_save which needs a function with no parameters
*/
-static void power9_idle(void)
+static void arch300_idle(void)
{
/* Requesting stop state 0 */
- power9_idle_stop(0);
+ arch300_idle_stop(0);
}
/*
* First deep stop state. Used to figure out when to save/restore
@@ -415,7 +415,7 @@ static int __init pnv_init_idle_states(void)
if (supported_cpuidle_states & OPAL_PM_NAP_ENABLED)
ppc_md.power_save = power7_idle;
else if (supported_cpuidle_states & OPAL_PM_STOP_INST_FAST)
- ppc_md.power_save = power9_idle;
+ ppc_md.power_save = arch300_idle;
out:
return 0;
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index c789258..c931bb2 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -183,7 +183,7 @@ static void pnv_smp_cpu_kill_self(void)
ppc64_runlatch_off();
if (cpu_has_feature(CPU_FTR_ARCH_300))
- srr1 = power9_idle_stop(pnv_deepest_stop_state);
+ srr1 = arch300_idle_stop(pnv_deepest_stop_state);
else if (idle_states & OPAL_PM_WINKLE_ENABLED)
srr1 = power7_winkle();
else if ((idle_states & OPAL_PM_SLEEP_ENABLED) ||
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 7fe442c..a7f6528 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -102,7 +102,7 @@ static int stop_loop(struct cpuidle_device *dev,
int index)
{
ppc64_runlatch_off();
- power9_idle_stop(stop_psscr_table[index]);
+ arch300_idle_stop(stop_psscr_table[index]);
ppc64_runlatch_on();
return index;
}
--
1.9.4
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