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From: Tomasz Figa <tomasz.figa@gmail.com>
To: Kukjin Kim <kgene.kim@samsung.com>,
	'Tomasz Figa' <t.figa@samsung.com>,
	linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	'Marek Szyprowski' <m.szyprowski@samsung.com>
Subject: Re: [PATCH 2/6] ARM: EXYNOS: Fix core ID used by platsmp and hotplug code
Date: Mon, 14 Jul 2014 11:50:54 +0200	[thread overview]
Message-ID: <53C3A7FE.8000401@gmail.com> (raw)
In-Reply-To: <031001cf9aaf$959cf6c0$c0d6e440$@samsung.com>

Hi Kukjin,

On 08.07.2014 15:21, Kukjin Kim wrote:
> Tomasz Figa wrote:
>>
>> When CPU topology is specified in device tree, cpu_logical_map() does
>> not return core ID anymore, but rather full MPIDR value. This breaks
>> existing calculation of PMU register offsets on Exynos SoCs.
>>
>> This patch fixes the problem by adjusting the code to use only core ID
>> bits of the value returned by cpu_logical_map() to allow CPU topology to
>> be specified in device tree on Exynos SoCs.
>>
>> Signed-off-by: Tomasz Figa <t.figa@samsung.com>
> 
> Looks good to me, but I think we don't need this fix in 3.16 because the CPU
> topology is not specified in DT yet...if I'm wrong, please correct me.

CPU topology is already specified in DT for Exynos3250, 5250, 5260, 5410
and 5420/5800.

This patch also fixes CPU hotplug on SoCs with more than 2 cores,
because it removes incorrect condition check in platform_do_lowpower().

Please take this fix for next -rc release.

Best regards,
Tomasz

WARNING: multiple messages have this Message-ID (diff)
From: tomasz.figa@gmail.com (Tomasz Figa)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/6] ARM: EXYNOS: Fix core ID used by platsmp and hotplug code
Date: Mon, 14 Jul 2014 11:50:54 +0200	[thread overview]
Message-ID: <53C3A7FE.8000401@gmail.com> (raw)
In-Reply-To: <031001cf9aaf$959cf6c0$c0d6e440$@samsung.com>

Hi Kukjin,

On 08.07.2014 15:21, Kukjin Kim wrote:
> Tomasz Figa wrote:
>>
>> When CPU topology is specified in device tree, cpu_logical_map() does
>> not return core ID anymore, but rather full MPIDR value. This breaks
>> existing calculation of PMU register offsets on Exynos SoCs.
>>
>> This patch fixes the problem by adjusting the code to use only core ID
>> bits of the value returned by cpu_logical_map() to allow CPU topology to
>> be specified in device tree on Exynos SoCs.
>>
>> Signed-off-by: Tomasz Figa <t.figa@samsung.com>
> 
> Looks good to me, but I think we don't need this fix in 3.16 because the CPU
> topology is not specified in DT yet...if I'm wrong, please correct me.

CPU topology is already specified in DT for Exynos3250, 5250, 5260, 5410
and 5420/5800.

This patch also fixes CPU hotplug on SoCs with more than 2 cores,
because it removes incorrect condition check in platform_do_lowpower().

Please take this fix for next -rc release.

Best regards,
Tomasz

WARNING: multiple messages have this Message-ID (diff)
From: Tomasz Figa <tomasz.figa@gmail.com>
To: Kukjin Kim <kgene.kim@samsung.com>,
	"'Tomasz Figa'" <t.figa@samsung.com>,
	linux-samsung-soc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	"'Marek Szyprowski'" <m.szyprowski@samsung.com>
Subject: Re: [PATCH 2/6] ARM: EXYNOS: Fix core ID used by platsmp and hotplug code
Date: Mon, 14 Jul 2014 11:50:54 +0200	[thread overview]
Message-ID: <53C3A7FE.8000401@gmail.com> (raw)
In-Reply-To: <031001cf9aaf$959cf6c0$c0d6e440$@samsung.com>

Hi Kukjin,

On 08.07.2014 15:21, Kukjin Kim wrote:
> Tomasz Figa wrote:
>>
>> When CPU topology is specified in device tree, cpu_logical_map() does
>> not return core ID anymore, but rather full MPIDR value. This breaks
>> existing calculation of PMU register offsets on Exynos SoCs.
>>
>> This patch fixes the problem by adjusting the code to use only core ID
>> bits of the value returned by cpu_logical_map() to allow CPU topology to
>> be specified in device tree on Exynos SoCs.
>>
>> Signed-off-by: Tomasz Figa <t.figa@samsung.com>
> 
> Looks good to me, but I think we don't need this fix in 3.16 because the CPU
> topology is not specified in DT yet...if I'm wrong, please correct me.

CPU topology is already specified in DT for Exynos3250, 5250, 5260, 5410
and 5420/5800.

This patch also fixes CPU hotplug on SoCs with more than 2 cores,
because it removes incorrect condition check in platform_do_lowpower().

Please take this fix for next -rc release.

Best regards,
Tomasz

  reply	other threads:[~2014-07-14  9:50 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-24 13:57 [PATCH 0/6] Various Samsung fixes for v3.16-rc3 Tomasz Figa
2014-06-24 13:57 ` Tomasz Figa
2014-06-24 13:57 ` [PATCH 1/6] mmc: sdhci-s3c: Fix local I/O clock gating Tomasz Figa
2014-06-24 13:57   ` Tomasz Figa
2014-07-14  8:05   ` Jaehoon Chung
2014-07-14  8:05     ` Jaehoon Chung
2014-06-24 13:57 ` [PATCH 2/6] ARM: EXYNOS: Fix core ID used by platsmp and hotplug code Tomasz Figa
2014-06-24 13:57   ` Tomasz Figa
2014-06-24 13:57   ` Tomasz Figa
2014-07-08 13:21   ` Kukjin Kim
2014-07-08 13:21     ` Kukjin Kim
2014-07-14  9:50     ` Tomasz Figa [this message]
2014-07-14  9:50       ` Tomasz Figa
2014-07-14  9:50       ` Tomasz Figa
2014-07-15 18:00       ` Kukjin Kim
2014-07-15 18:00         ` Kukjin Kim
2014-06-24 13:57 ` [PATCH 3/6] clk: samsung: exynos4: Remove SRC_MASK_ISP gates Tomasz Figa
2014-06-24 13:57   ` Tomasz Figa
2014-06-24 13:57   ` Tomasz Figa
2014-06-25  9:58   ` Daniel Drake
2014-06-25  9:58     ` Daniel Drake
2014-06-25 10:10     ` Tomasz Figa
2014-06-25 10:10       ` Tomasz Figa
2014-06-30 13:50   ` Tomasz Figa
2014-06-30 13:50     ` Tomasz Figa
2014-06-24 13:57 ` [PATCH 4/6] ARM: SAMSUNG: Restore Samsung PM Debug functionality Tomasz Figa
2014-06-24 13:57   ` Tomasz Figa
2014-06-25 10:09   ` Daniel Drake
2014-06-25 10:09     ` Daniel Drake
2014-06-25 11:41     ` Tomasz Figa
2014-06-25 11:41       ` Tomasz Figa
2014-06-25 11:43   ` [PATCH v2 " Tomasz Figa
2014-06-25 11:43     ` Tomasz Figa
2014-06-26  9:24     ` Daniel Drake
2014-06-26  9:24       ` Daniel Drake
2014-07-14  9:52     ` Tomasz Figa
2014-07-14  9:52       ` Tomasz Figa
2014-07-08 13:48   ` [PATCH " Kukjin Kim
2014-07-08 13:48     ` Kukjin Kim
2014-07-08 13:54     ` Tomasz Figa
2014-07-08 13:54       ` Tomasz Figa
2014-07-15 18:02       ` Kukjin Kim
2014-07-15 18:02         ` Kukjin Kim
2014-07-15 23:59         ` Tomasz Figa
2014-07-15 23:59           ` Tomasz Figa
2014-07-21 10:30           ` Tomasz Figa
2014-07-21 10:30             ` Tomasz Figa
2014-06-24 13:57 ` [PATCH 5/6] ARM: EXYNOS: Fix suspend/resume sequencies Tomasz Figa
2014-06-24 13:57   ` Tomasz Figa
2014-06-24 15:33   ` Abhilash Kesavan
2014-06-24 15:33     ` Abhilash Kesavan
2014-07-08 14:02   ` Kukjin Kim
2014-07-08 14:02     ` Kukjin Kim
2014-06-24 13:57 ` [PATCH 6/6] ARM: EXYNOS: Register cpuidle device only on Exynos4210 and 5250 Tomasz Figa
2014-06-24 13:57   ` Tomasz Figa
2014-07-08 14:15   ` Kukjin Kim
2014-07-08 14:15     ` Kukjin Kim
2014-07-08 15:45     ` Bartlomiej Zolnierkiewicz
2014-07-08 15:45       ` Bartlomiej Zolnierkiewicz
2014-07-10 13:30       ` Kukjin Kim
2014-07-10 13:30         ` Kukjin Kim
2014-06-25 11:52 ` [PATCH v2 5/6] ARM: EXYNOS: Fix suspend/resume sequences Tomasz Figa
2014-06-25 11:52   ` Tomasz Figa
2014-07-14  9:54   ` Tomasz Figa
2014-07-14  9:54     ` Tomasz Figa
2014-07-15 11:19     ` Bartlomiej Zolnierkiewicz
2014-07-15 11:19       ` Bartlomiej Zolnierkiewicz
2014-07-15 12:15       ` Tomasz Figa
2014-07-15 12:15         ` Tomasz Figa
2014-07-15 14:24         ` [PATCH v3] " Tomasz Figa
2014-07-15 14:24           ` Tomasz Figa
2014-07-15 14:26           ` Tomasz Figa
2014-07-15 14:26             ` Tomasz Figa
2014-07-17 14:42             ` Tomasz Figa
2014-07-17 14:42               ` Tomasz Figa
2014-07-21 10:23             ` Tomasz Figa
2014-07-21 10:23               ` Tomasz Figa
2014-07-15 17:31         ` [PATCH v2 5/6] " Chander Kashyap
2014-07-15 17:31           ` Chander Kashyap
2014-07-01 13:54 ` [PATCH 0/6] Various Samsung fixes for v3.16-rc3 Tomasz Figa
2014-07-01 13:54   ` Tomasz Figa
2014-07-07 23:25   ` Kukjin Kim
2014-07-07 23:25     ` Kukjin Kim

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