powerpc: fix typos in comments

Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220430185654.5855-1-Julia.Lawall@inria.fr

4 files changed, 9 insertions, 9 deletions

diff --git a/arch/powerpc/perf/8xx-pmu.c b/arch/powerpc/perf/8xx-pmu.c
index 4738c4dbf567..308a2e40d7be 100644
--- a/arch/powerpc/perf/8xx-pmu.c
+++ b/arch/powerpc/perf/8xx-pmu.c
@@ -157,7 +157,7 @@ static void mpc8xx_pmu_del(struct perf_event *event, int flags)
 
 	mpc8xx_pmu_read(event);
 
-	/* If it was the last user, stop counting to avoid useles overhead */
+	/* If it was the last user, stop counting to avoid useless overhead */
 	switch (event_type(event)) {
 	case PERF_8xx_ID_CPU_CYCLES:
 		break;
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index b5b42cf0a703..140502a7fdf8 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1142,7 +1142,7 @@ static u64 check_and_compute_delta(u64 prev, u64 val)
 	/*
 	 * POWER7 can roll back counter values, if the new value is smaller
 	 * than the previous value it will cause the delta and the counter to
-	 * have bogus values unless we rolled a counter over.  If a coutner is
+	 * have bogus values unless we rolled a counter over.  If a counter is
 	 * rolled back, it will be smaller, but within 256, which is the maximum
 	 * number of events to rollback at once.  If we detect a rollback
 	 * return 0.  This can lead to a small lack of precision in the
@@ -2057,7 +2057,7 @@ static int power_pmu_event_init(struct perf_event *event)
 	/*
 	 * PMU config registers have fields that are
 	 * reserved and some specific values for bit fields are reserved.
-	 * For ex., MMCRA[61:62] is Randome Sampling Mode (SM)
+	 * For ex., MMCRA[61:62] is Random Sampling Mode (SM)
 	 * and value of 0b11 to this field is reserved.
 	 * Check for invalid values in attr.config.
 	 */
@@ -2447,7 +2447,7 @@ static void __perf_event_interrupt(struct pt_regs *regs)
 	}
 
 	/*
-	 * During system wide profling or while specific CPU is monitored for an
+	 * During system wide profiling or while specific CPU is monitored for an
 	 * event, some corner cases could cause PMC to overflow in idle path. This
 	 * will trigger a PMI after waking up from idle. Since counter values are _not_
 	 * saved/restored in idle path, can lead to below "Can't find PMC" message.
diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 526d4b767534..498f1a2f7658 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -521,7 +521,7 @@ static int nest_imc_event_init(struct perf_event *event)
 
 	/*
 	 * Nest HW counter memory resides in a per-chip reserve-memory (HOMER).
-	 * Get the base memory addresss for this cpu.
+	 * Get the base memory address for this cpu.
 	 */
 	chip_id = cpu_to_chip_id(event->cpu);
 
@@ -674,7 +674,7 @@ static int ppc_core_imc_cpu_offline(unsigned int cpu)
 	/*
 	 * Check whether core_imc is registered. We could end up here
 	 * if the cpuhotplug callback registration fails. i.e, callback
-	 * invokes the offline path for all sucessfully registered cpus.
+	 * invokes the offline path for all successfully registered cpus.
 	 * At this stage, core_imc pmu will not be registered and we
 	 * should return here.
 	 *
diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c
index a74d382ecbb7..839cc68212c1 100644
--- a/arch/powerpc/perf/isa207-common.c
+++ b/arch/powerpc/perf/isa207-common.c
@@ -82,11 +82,11 @@ static unsigned long sdar_mod_val(u64 event)
 static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
 {
 	/*
-	 * MMCRA[SDAR_MODE] specifices how the SDAR should be updated in
-	 * continous sampling mode.
+	 * MMCRA[SDAR_MODE] specifies how the SDAR should be updated in
+	 * continuous sampling mode.
 	 *
 	 * Incase of Power8:
-	 * MMCRA[SDAR_MODE] will be programmed as "0b01" for continous sampling
+	 * MMCRA[SDAR_MODE] will be programmed as "0b01" for continuous sampling
 	 * mode and will be un-changed when setting MMCRA[63] (Marked events).
 	 *
 	 * Incase of Power9/power10: