LinuxPPC-Dev Archive on lore.kernel.org
 help / color / Atom feed
From: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>,
	maddy@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 01/10] powerpc/perf: Add support for ISA3.1 PMU SPRs
Date: Thu, 9 Jul 2020 07:23:58 +0530
Message-ID: <DF000FF6-EF09-4299-A4AD-EF76277A6EF4@linux.vnet.ibm.com> (raw)
In-Reply-To: <874kqi46cg.fsf@mpe.ellerman.id.au>



> On 08-Jul-2020, at 4:32 PM, Michael Ellerman <mpe@ellerman.id.au> wrote:
> 
> Athira Rajeev <atrajeev@linux.vnet.ibm.com> writes:
> ...
>> diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
>> index cd6a742..5c64bd3 100644
>> --- a/arch/powerpc/perf/core-book3s.c
>> +++ b/arch/powerpc/perf/core-book3s.c
>> @@ -39,10 +39,10 @@ struct cpu_hw_events {
>> 	unsigned int flags[MAX_HWEVENTS];
>> 	/*
>> 	 * The order of the MMCR array is:
>> -	 *  - 64-bit, MMCR0, MMCR1, MMCRA, MMCR2
>> +	 *  - 64-bit, MMCR0, MMCR1, MMCRA, MMCR2, MMCR3
>> 	 *  - 32-bit, MMCR0, MMCR1, MMCR2
>> 	 */
>> -	unsigned long mmcr[4];
>> +	unsigned long mmcr[5];
>> 	struct perf_event *limited_counter[MAX_LIMITED_HWCOUNTERS];
>> 	u8  limited_hwidx[MAX_LIMITED_HWCOUNTERS];
>> 	u64 alternatives[MAX_HWEVENTS][MAX_EVENT_ALTERNATIVES];
> ...
>> @@ -1310,6 +1326,10 @@ static void power_pmu_enable(struct pmu *pmu)
>> 	if (!cpuhw->n_added) {
>> 		mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE);
>> 		mtspr(SPRN_MMCR1, cpuhw->mmcr[1]);
>> +#ifdef CONFIG_PPC64
>> +		if (ppmu->flags & PPMU_ARCH_310S)
>> +			mtspr(SPRN_MMCR3, cpuhw->mmcr[4]);
>> +#endif /* CONFIG_PPC64 */
>> 		goto out_enable;
>> 	}
>> 
>> @@ -1353,6 +1373,11 @@ static void power_pmu_enable(struct pmu *pmu)
>> 	if (ppmu->flags & PPMU_ARCH_207S)
>> 		mtspr(SPRN_MMCR2, cpuhw->mmcr[3]);
>> 
>> +#ifdef CONFIG_PPC64
>> +	if (ppmu->flags & PPMU_ARCH_310S)
>> +		mtspr(SPRN_MMCR3, cpuhw->mmcr[4]);
>> +#endif /* CONFIG_PPC64 */
> 
> I don't think you need the #ifdef CONFIG_PPC64?

Hi Michael

Thanks for reviewing this series.

SPRN_MMCR3 is not defined for PPC32 and we hit build failure for pmac32_defconfig.
The #ifdef CONFIG_PPC64 is to address this.

Thanks
Athira


> 
> cheers


  reply index

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-01  9:20 [PATCH v2 00/10] powerpc/perf: Add support for power10 PMU Hardware Athira Rajeev
2020-07-01  9:20 ` [PATCH v2 01/10] powerpc/perf: Add support for ISA3.1 PMU SPRs Athira Rajeev
2020-07-08 11:02   ` Michael Ellerman
2020-07-09  1:53     ` Athira Rajeev [this message]
2020-07-13 12:50       ` Michael Ellerman
2020-07-15  6:07         ` Athira Rajeev
2020-07-01  9:20 ` [PATCH v2 02/10] KVM: PPC: Book3S HV: Save/restore new PMU registers Athira Rajeev
2020-07-01 11:11   ` Paul Mackerras
2020-07-02  6:22     ` Athira Rajeev
2020-07-07  6:13   ` Michael Neuling
2020-07-01  9:20 ` [PATCH v2 03/10] powerpc/xmon: Add PowerISA v3.1 PMU SPRs Athira Rajeev
2020-07-08 11:04   ` Michael Ellerman
2020-07-09  1:57     ` Athira Rajeev
2020-07-01  9:20 ` [PATCH v2 04/10] powerpc/perf: Add power10_feat to dt_cpu_ftrs Athira Rajeev
2020-07-07  6:22   ` Michael Neuling
2020-07-08  2:13     ` Athira Rajeev
2020-07-08 11:15   ` Michael Ellerman
2020-07-09 11:07     ` Athira Rajeev
2020-07-01  9:20 ` [PATCH v2 05/10] powerpc/perf: Update Power PMU cache_events to u64 type Athira Rajeev
2020-07-01  9:20 ` [PATCH v2 06/10] powerpc/perf: power10 Performance Monitoring support Athira Rajeev
2020-07-02  9:06   ` kernel test robot
2020-07-07  6:50   ` Michael Neuling
2020-07-08 10:56     ` Athira Rajeev
2020-07-01  9:20 ` [PATCH v2 07/10] powerpc/perf: support BHRB disable bit and new filtering modes Athira Rajeev
2020-07-07  7:17   ` Michael Neuling
2020-07-08  7:41     ` Athira Rajeev
2020-07-08  7:43     ` Gautham R Shenoy
2020-07-09  2:01       ` Athira Rajeev
2020-07-08 11:42   ` Michael Ellerman
2020-07-09  2:43     ` Athira Rajeev
2020-07-01  9:21 ` [PATCH v2 08/10] powerpc/perf: Add support for outputting extended regs in perf intr_regs Athira Rajeev
2020-07-01  9:21 ` [PATCH v2 09/10] tools/perf: Add perf tools support for extended register capability in powerpc Athira Rajeev
2020-07-08 12:04   ` Michael Ellerman
2020-07-09  3:10     ` Athira Rajeev
2020-07-13 12:47       ` Michael Ellerman
2020-07-13  2:36     ` Athira Rajeev
2020-07-01  9:21 ` [PATCH v2 10/10] powerpc/perf: Add extended regs support for power10 platform Athira Rajeev
2020-07-02  9:40   ` kernel test robot
2020-07-08  1:53     ` Athira Rajeev
2020-07-08 12:04   ` Michael Ellerman
2020-07-09  6:29     ` Athira Rajeev

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=DF000FF6-EF09-4299-A4AD-EF76277A6EF4@linux.vnet.ibm.com \
    --to=atrajeev@linux.vnet.ibm.com \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=maddy@linux.vnet.ibm.com \
    --cc=mikey@neuling.org \
    --cc=mpe@ellerman.id.au \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

LinuxPPC-Dev Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linuxppc-dev/0 linuxppc-dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linuxppc-dev linuxppc-dev/ https://lore.kernel.org/linuxppc-dev \
		linuxppc-dev@lists.ozlabs.org linuxppc-dev@ozlabs.org
	public-inbox-index linuxppc-dev

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.ozlabs.lists.linuxppc-dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git