- 28 2月, 2017 1 次提交
-
-
由 Florian Fainelli 提交于
All low-level PM/SMP code using virt_to_phys() should actually use __pa_symbol() against kernel symbols. Update code where relevant to move away from virt_to_phys(). Acked-by: NRussell King <rmk+kernel@armlinux.org.uk> Reviewed-by: NLaura Abbott <labbott@redhat.com> Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 02 12月, 2015 1 次提交
-
-
由 Masahiro Yamada 提交于
These smp_operations structures are not over-written, so add "const" qualifier and replace __initdata with __initconst. Also, add "static" where it is possible. Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com> Acked-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com> Acked-by: NMoritz Fischer <moritz.fischer@ettus.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> # qcom part Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Acked-by: NPatrice Chotard <patrice.chotard@st.com> Acked-by: NHeiko Stuebner <heiko@sntech.de> Acked-by: NWei Xu <xuwei5@hisilicon.com> Acked-by: NFlorian Fainelli <f.fainelli@gmail.com> Acked-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: NGregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: NShawn Guo <shawnguo@kernel.org> Acked-by: NMatthias Brugger <matthias.bgg@gmail.com> Acked-by: NThierry Reding <treding@nvidia.com> Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NLiviu Dudau <Liviu.Dudau@arm.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NArnd Bergmann <arnd@arndb.de>
-
- 01 6月, 2015 1 次提交
-
-
由 Russell King 提交于
All ARMv5 and older CPUs invalidate their caches in the early assembly setup function, prior to enabling the MMU. This is because the L1 cache should not contain any data relevant to the execution of the kernel at this point; all data should have been flushed out to memory. This requirement should also be true for ARMv6 and ARMv7 CPUs - indeed, these typically do not search their caches when caching is disabled (as it needs to be when the MMU is disabled) so this change should be safe. ARMv7 allows there to be CPUs which search their caches while caching is disabled, and it's permitted that the cache is uninitialised at boot; for these, the architecture reference manual requires that an implementation specific code sequence is used immediately after reset to ensure that the cache is placed into a sane state. Such functionality is definitely outside the remit of the Linux kernel, and must be done by the SoC's firmware before _any_ CPU gets to the Linux kernel. Changing the data cache clean+invalidate to a mere invalidate allows us to get rid of a lot of platform specific hacks around this issue for their secondary CPU bringup paths - some of which were buggy. Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Tested-by: NFlorian Fainelli <f.fainelli@gmail.com> Tested-by: NHeiko Stuebner <heiko@sntech.de> Tested-by: NDinh Nguyen <dinguyen@opensource.altera.com> Acked-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Tested-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: NShawn Guo <shawn.guo@linaro.org> Tested-by: NThierry Reding <treding@nvidia.com> Acked-by: NThierry Reding <treding@nvidia.com> Tested-by: NGeert Uytterhoeven <geert+renesas@glider.be> Tested-by: NMichal Simek <michal.simek@xilinx.com> Tested-by: NWei Xu <xuwei5@hisilicon.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 16 9月, 2014 4 次提交
-
-
由 Soren Brinkmann 提交于
Match the naming pattern of all other SMP ops and rename zynq_platform_cpu_die --> zynq_cpu_die. Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
由 Soren Brinkmann 提交于
The hotplug code contains only a single function, which is an SMP function. Move that to platsmp.c where all other SMP runctions reside. That allows removing hotplug.c and declaring the cpu_die function static. Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
由 Soren Brinkmann 提交于
Avoid races and add synchronisation between the arch specific kill and die routines. The same synchronisation issue was fixed on IMX platform by this commit: "ARM: imx: fix sync issue between imx_cpu_die and imx_cpu_kill" (sha1: 2f3edfd7) Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
由 Soren Brinkmann 提交于
Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
- 10 12月, 2013 4 次提交
-
-
由 Sudeep KarkadaNagesha 提交于
This patch also removes setting cpu_present_mask as platforms should only re-initialize it in smp_prepare_cpus() if present != possible. Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: NSudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
由 Michal Simek 提交于
Use simple hook to slcr to stop cpu. Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
由 Soren Brinkmann 提交于
During boot, Linux initiates a clean-invalidate operation only, resulting in faulty data to be written to the memory system during resume. Therefore invalidate the L1 in the secondary boot path to avoid these issues. Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
由 Soren Brinkmann 提交于
The generic code already checks that the CPU being requested is legal if the cpu possible/present masks are set correctly. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
- 15 7月, 2013 1 次提交
-
-
由 Paul Gortmaker 提交于
The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) and are flagged as __cpuinit -- so if we remove the __cpuinit from the arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit related content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. This removes all the ARM uses of the __cpuinit macros from C code, and all __CPUINIT from assembly code. It also had two ".previous" section statements that were paired off against __CPUINIT (aka .section ".cpuinit.text") that also get removed here. [1] https://lkml.org/lkml/2013/5/20/589 Cc: Russell King <linux@arm.linux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
-
- 17 6月, 2013 1 次提交
-
-
由 Michal Simek 提交于
This configuration is used by remoteproc. Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
- 04 4月, 2013 2 次提交
-
-
由 Michal Simek 提交于
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
-
由 Michal Simek 提交于
Zynq is dual core Cortex A9 which starts always at zero. Using simple trampoline ensure long jump to secondary_startup code. Signed-off-by: NMichal Simek <michal.simek@xilinx.com> Signed-off-by: NSteffen Trumtrar <s.trumtrar@pengutronix.de>
-