- 26 8月, 2016 1 次提交
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由 Marcin Nowakowski 提交于
Driver init code incorrectly uses the block base address and as a result clears clocksource structure's fields instead of the hardware registers. Commit 09a99820 ("timekeeping: Lift clocksource cacheline restriction") has changed the offsets within pistachio_clocksource structure and what has previously gone unnoticed now leads to a kernel panic during boot. Signed-off-by: NMarcin Nowakowski <marcin.nowakowski@imgtec.com> Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
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- 28 6月, 2016 2 次提交
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由 Daniel Lezcano 提交于
All the clocksource drivers's init function are now converted to return an error code. CLOCKSOURCE_OF_DECLARE is no longer used as well as the clksrc-of table. Let's convert back the names: - CLOCKSOURCE_OF_DECLARE_RET => CLOCKSOURCE_OF_DECLARE - clksrc-of-ret => clksrc-of Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org> For exynos_mct and samsung_pwm_timer: Acked-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com> For arch/arc: Acked-by: NVineet Gupta <vgupta@synopsys.com> For mediatek driver: Acked-by: NMatthias Brugger <matthias.bgg@gmail.com> For the Rockchip-part Acked-by: NHeiko Stuebner <heiko@sntech.de> For STi : Acked-by: NPatrice Chotard <patrice.chotard@st.com> For the mps2-timer.c and versatile.c changes: Acked-by: NLiviu Dudau <Liviu.Dudau@arm.com> For the OXNAS part : Acked-by: NNeil Armstrong <narmstrong@baylibre.com> For LPC32xx driver: Acked-by: NSylvain Lemieux <slemieux.tyco@gmail.com> For Broadcom Kona timer change: Acked-by: NRay Jui <ray.jui@broadcom.com> For Sun4i and Sun5i: Acked-by: NChen-Yu Tsai <wens@csie.org> For Meson6: Acked-by: NCarlo Caione <carlo@caione.org> For Keystone: Acked-by: NSantosh Shilimkar <ssantosh@kernel.org> For NPS: Acked-by: NNoam Camus <noamca@mellanox.com> For bcm2835: Acked-by: NEric Anholt <eric@anholt.net>
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由 Daniel Lezcano 提交于
The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
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- 23 3月, 2016 1 次提交
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由 Vladimir Zapolskiy 提交于
Use signed integer output in the pr_err() string format, here PTR_ERR() value is negative and it should be reported in human readable way. Signed-off-by: NVladimir Zapolskiy <vz@mleia.com> Cc: Jisheng Zhang <jszhang@marvell.com> Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1458603727-4446-1-git-send-email-vz@mleia.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 16 12月, 2015 1 次提交
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由 Jisheng Zhang 提交于
Let's assume the counter value is 0xf0000000, the pistachio clocksource read cycles function should return ~0x0fffffff but actually it returns 0xffffffff0fffffff. That occurs because: ~(cycle_t)value is different from (cycle_t)~value. unsigned long val = ~(unsigned long)0xf0000000; 40049a: 48 b8 ff ff ff 0f ff movabs $0xffffffff0fffffff,%rax unsigned long val = (unsigned long)~0xf0000000; 40049a: 48 c7 45 f8 ff ff ff movq $0xfffffff,-0x8(%rbp) We fix this issue by calculating bitwise-not counter, then cast to cycle_t. Signed-off-by: NJisheng Zhang <jszhang@marvell.com> Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
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- 27 10月, 2015 1 次提交
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由 Jisheng Zhang 提交于
Currently pistachio can be used as a scheduler clock. We properly marked pistachio_read_sched_clock() as notrace but we then call another function pistachio_clocksource_read_cycles() that _wasn't_ notrace. Having a traceable function in the sched_clock() path leads to a recursion within ftrace and a kernel crash. Fix this by adding notrace attribute to the pistachio_clocksource_read_cycles() function. Signed-off-by: NJisheng Zhang <jszhang@marvell.com> Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
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- 03 9月, 2015 1 次提交
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由 Ezequiel Garcia 提交于
The Pistachio SoC provides four general purpose timers, and allow to implement a clocksource driver. This driver can be used as a replacement for the MIPS GIC and MIPS R4K clocksources and sched clocks, which are clocked from the CPU clock. Given the general purpose timers are clocked from an independent clock, this new clocksource driver will be useful to introduce CPUFreq support for Pistachio machines. Signed-off-by: NEzequiel Garcia <ezequiel.garcia@imgtec.com> Signed-off-by: NGovindraj Raja <govindraj.raja@imgtec.com> Reviewed-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: Andrew Bresticker <abrestic@chromium.org> Cc: James Hartley <James.Hartley@imgtec.com> Cc: Damien Horsley <Damien.Horsley@imgtec.com> Cc: James Hogan <James.Hogan@imgtec.com> Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/10899/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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