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path: root/arch/arm/mach-tegra/hotplug.c
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2011-11-30ARM: tegra: power: Flush cache just before cpu shutdownAlex Frid
Re-arranged cpu die procedure to flush L1 cache just before shutdown. This is necessary as code executed after L1 flush included spin-lock protected sections, and the unlock operation was not properly detected by SCU. As a result CPUs that stayed on-line hanged trying to acquire the same spin-lock. Bug 864256 Change-Id: I415160d60686094059e62d91cdcf4b264a4fb69f Reviewed-on: http://git-master/r/53637 Tested-by: Aleksandr Frid <afrid@nvidia.com> Reviewed-by: Krishna Reddy <vdumpa@nvidia.com> Tested-by: Gaurav Sarode <gsarode@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Rebase-Id: R0663eac9b5c3c84d8b7380873bde6af6b2a74a9f
2011-11-30ARM: tegra: power: Consolidate CPU context save and SMP exitScott Williams
Every call to tegra_cpu_save is always followed by a call to tegra_cpu_exit_coherency. Simplify the callers of tegra_cpu_save by folding the CPU context save functionality of cpu_suspend and the coherency exit functionality into a single function called tegra_cpu_suspend. Change-Id: Ia71a663b2971685712d5b8a2b7e8b44fe1526f40 Signed-off-by: Scott Williams <scwilliams@nvidia.com> Rebase-Id: R36c0c5f44608d0c099d928e19e36af2e7ba061d8
2011-11-30ARM: tegra: Add Tegra 3 CPU hotplug supportScott Williams
Change-Id: Ie43f4efdf884a916c6bc9737157091c35dc44501 Signed-off-by: Scott Williams <scwilliams@nvidia.com> DW: Split into logical changes Signed-off-by: Dan Willemsen <dwillemsen@nvidia.com> Rebase-Id: R1f023651504a7d336f7e98921f6372bee0aa1341
2011-11-30ARM: tegra: Rename tegra<n>_sleep_resetScott Williams
Rename tegra<n>_sleep_reset to tegra<n>_hotplug_shutdown since that is more descriptive of their actual function. Change-Id: I411e2474bd35a799d5367a182809d17933238612 Signed-off-by: Scott Williams <scwilliams@nvidia.com> DW: Split into logical changes Signed-off-by: Dan Willemsen <dwillemsen@nvidia.com> Rebase-Id: R72bf50004ab3fcdde5485b84b7ba008247d1bf4c
2011-11-30ARM: tegra2: Don't use tegra_cpu_save to exit coherency on resetScott Williams
Change tegra2_sleep_reset not to depend on tegra_cpu_save to exit coherency. Now tegra2_sleep_reset no longer depends on CONFIG_PM_SLEEP Change-Id: I478e723e826fd3ddbd6a6e8bceaedf795bd2ee26 Signed-off-by: Scott Williams <scwilliams@nvidia.com> DW: Split into logical changes Signed-off-by: Dan Willemsen <dwillemsen@nvidia.com> Rebase-Id: R2138dcf60971f7a9ad78e6a39fc2206c99faf7b5
2011-11-30ARM: tegra: Split sleep.S for Tegra2Scott Williams
Change-Id: I22bbfe62c6fed753a6852b12246f4a1f2414a96f Signed-off-by: Scott Williams <scwilliams@nvidia.com> DW: Split into logical changes Signed-off-by: Dan Willemsen <dwillemsen@nvidia.com> Rebase-Id: R2d7985afe7ffafac651d747205e528331f5f993e
2011-11-30see bbc81fd4327f9ed4480b05981e38acd48b1d184aDan Willemsen
Rebase-Id: Re974e9426a989f702b33a78b612cd5485ce89d12
2011-11-30[ARM/tegra] Add Tegra3 supportScott Williams
Bug 764354 Original-Change-Id: I8a390eb4dae87dceacb97461f23d13554868b046 Reviewed-on: http://git-master/r/12228 Reviewed-by: Scott Williams <scwilliams@nvidia.com> Tested-by: Scott Williams <scwilliams@nvidia.com> Original-Change-Id: I8e6b8303898796419fb5a759cd16edff9aeac081 Rebase-Id: R2866240384c6c24f46bd7ef54bc3dc9140d9e96b
2011-11-30ARM: tegra: add hotplug supportColin Cross
Hotplug uses the same CPU wfi code as cpuidle to put either cpu into a slightly lower power mode (clock gated, but still powered). If the remaining cpu enters LP2, the hotplugged cpu will be power gated until the remaining cpu is active. Change-Id: Ib7428709043415dc759136cf91668f6f63fe5a5c Signed-off-by: Colin Cross <ccross@android.com>
2011-01-14ARM: fix wrongly patched constantsRussell King
e3d9c625 (ARM: CPU hotplug: fix hard-coded control register constants) changed the wrong constants in the hotplug assembly code. Fix this. Reported-by: viresh kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20ARM: CPU hotplug: fix hard-coded control register constantsRussell King
Use the definition we've provided in asm/system.h rather than numeric constants. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20ARM: CPU hotplug: fix reporting of spurious wakeupsRussell King
The original scheme for reporting spurious wakeups was broken - it tried to use printk() from a context which wasn't coherent with the other CPUs, which risks corrupting the printk() data. Fix this by noting the number spurious wakeups, and only report them when we are properly woken - when we will be coherent with the rest of the system. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20ARM: CPU hotplug: remove bug checks in platform_cpu_die()Russell King
platform_cpu_die() is entered from the CPU's own idle thread, which can not be migrated to other CPUs. Moreover, the 'cpu' argument comes from the thread info, which will always be the 'current' CPU. So remove this useless bug check. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20ARM: CPU hotplug: move cpu_killed completion to core codeRussell King
We always need to wait for the dying CPU to reach a safe state before taking it down, irrespective of the requirements of the platform. Move the completion code into the ARM SMP hotplug code rather than having each platform re-implement this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-08-05[ARM] tegra: SMP supportColin Cross
Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Erik Gilling <konkers@android.com>
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