From: fu.wei@linaro.org To: rjw@rjwysocki.net, lenb@kernel.org, daniel.lezcano@linaro.org, tglx@linutronix.de, marc.zyngier@arm.com, mark.rutland@arm.com, lorenzo.pieralisi@arm.com, sudeep.holla@arm.com, hanjun.guo@linaro.org Cc: linux-arm-kernel@lists.infradead.org, linaro-acpi@lists.linaro.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, rruigrok@codeaurora.org, harba@codeaurora.org, cov@codeaurora.org, timur@codeaurora.org, graeme.gregory@linaro.org, al.stone@linaro.org, jcm@redhat.com, wei@redhat.com, arnd@arndb.de, catalin.marinas@arm.com, will.deacon@arm.com, Suravee.Suthikulpanit@amd.com, leo.duran@amd.com, wim@iguana.be, linux@roeck-us.net, linux-watchdog@vger.kernel.org, tn@semihalf.com, christoffer.dall@linaro.org, julien.grall@arm.com, Fu Wei <fu.wei@linaro.org> Subject: [PATCH v21 08/13] clocksource: arm_arch_timer: refactor MMIO timer probing. Date: Tue, 7 Feb 2017 02:50:10 +0800 [thread overview] Message-ID: <20170206185015.12296-9-fu.wei@linaro.org> (raw) In-Reply-To: <20170206185015.12296-1-fu.wei@linaro.org> From: Fu Wei <fu.wei@linaro.org> Currently the code to probe MMIO architected timers mixes DT parsing with actual poking of hardware. This makes the code harder than necessary to understand, and makes it difficult to add support for probing via ACPI. This patch factors all the DT-specific logic out of arch_timer_mem_init(), into a new function arch_timer_mem_of_init(). The former pokes the hardware and determines the suitablility of frames based on a datastructure populated by the latter. This cleanly separates the two and will make it possible to add probing using the ACPI GTDT in subsequent patches. Signed-off-by: Fu Wei <fu.wei@linaro.org> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> --- drivers/clocksource/arm_arch_timer.c | 156 +++++++++++++++++++++++++---------- 1 file changed, 111 insertions(+), 45 deletions(-) diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index f2b9ec4..73e875d 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -995,17 +995,20 @@ static int __init arch_timer_of_init(struct device_node *np) CLOCKSOURCE_OF_DECLARE(armv7_arch_timer, "arm,armv7-timer", arch_timer_of_init); CLOCKSOURCE_OF_DECLARE(armv8_arch_timer, "arm,armv8-timer", arch_timer_of_init); -static int __init arch_timer_mem_init(struct device_node *np) +static int __init arch_timer_mem_init(struct arch_timer_mem *timer_mem) { - struct device_node *frame, *best_frame = NULL; void __iomem *cntctlbase, *base; - unsigned int irq, ret = -EINVAL; + struct arch_timer_mem_frame *best_frame = NULL; + unsigned int irq; u32 cnttidr; + int i, ret; - arch_timers_present |= ARCH_TIMER_TYPE_MEM; - cntctlbase = of_iomap(np, 0); + if (!timer_mem->num_frames) + return -ENODEV; + + cntctlbase = ioremap(timer_mem->cntctlbase, timer_mem->size); if (!cntctlbase) { - pr_err("Can't find CNTCTLBase\n"); + pr_err("Can't map CNTCTLBase.\n"); return -ENXIO; } @@ -1015,26 +1018,18 @@ static int __init arch_timer_mem_init(struct device_node *np) * Try to find a virtual capable frame. Otherwise fall back to a * physical capable frame. */ - for_each_available_child_of_node(np, frame) { - int n; - u32 cntacr; - - if (of_property_read_u32(frame, "frame-number", &n)) { - pr_err("Missing frame-number\n"); - of_node_put(frame); - goto out; - } + for (i = 0; i < timer_mem->num_frames; i++) { + u32 cntacr = CNTACR_RFRQ | CNTACR_RWPT | CNTACR_RPCT | + CNTACR_RWVT | CNTACR_RVOFF | CNTACR_RVCT; + int n = timer_mem->frame[i].frame_nr; /* Try enabling everything, and see what sticks */ - cntacr = CNTACR_RFRQ | CNTACR_RWPT | CNTACR_RPCT | - CNTACR_RWVT | CNTACR_RVOFF | CNTACR_RVCT; writel_relaxed(cntacr, cntctlbase + CNTACR(n)); cntacr = readl_relaxed(cntctlbase + CNTACR(n)); if ((cnttidr & CNTTIDR_VIRT(n)) && !(~cntacr & (CNTACR_RWVT | CNTACR_RVCT))) { - of_node_put(best_frame); - best_frame = frame; + best_frame = &timer_mem->frame[i]; arch_timer_mem_use_virtual = true; break; } @@ -1042,55 +1037,126 @@ static int __init arch_timer_mem_init(struct device_node *np) if (~cntacr & (CNTACR_RWPT | CNTACR_RPCT)) continue; - of_node_put(best_frame); - best_frame = of_node_get(frame); + best_frame = &timer_mem->frame[i]; } + iounmap(cntctlbase); - ret= -ENXIO; - base = arch_counter_base = of_io_request_and_map(best_frame, 0, - "arch_mem_timer"); - if (IS_ERR(base)) { - pr_err("Can't map frame's registers\n"); - goto out; + if (!best_frame) { + pr_err("Can't find frame for register\n"); + return -EINVAL; } if (arch_timer_mem_use_virtual) - irq = irq_of_parse_and_map(best_frame, ARCH_TIMER_VIRT_SPI); + irq = best_frame->virt_irq; else - irq = irq_of_parse_and_map(best_frame, ARCH_TIMER_PHYS_SPI); + irq = best_frame->phys_irq; - ret = -EINVAL; if (!irq) { pr_err("Frame missing %s irq.\n", arch_timer_mem_use_virtual ? "virt" : "phys"); - goto out; + return -EINVAL; } - /* - * Try to determine the frequency from the device tree, - * if fail, get the frequency from the CNTFRQ reg of MMIO timer. - */ - if (of_property_read_u32(np, "clock-frequency", &arch_timer_mmio_freq)) + if (!request_mem_region(best_frame->cntbase, best_frame->size, + "arch_mem_timer")) + return -EBUSY; + + base = ioremap(best_frame->cntbase, best_frame->size); + if (!base) { + pr_err("Can't map frame's registers\n"); + return -ENXIO; + } + + if (!arch_timer_mmio_freq) arch_timer_mmio_freq = arch_timer_get_mmio_freq(base); - if (!arch_timer_mmio_freq) { - pr_err(FW_BUG "frequency not available for MMIO timer.\n"); - ret = -EINVAL; - goto out; + if (!arch_timer_mmio_freq || + (arch_timer_sysreg_freq && + arch_timer_mmio_freq != arch_timer_sysreg_freq)) { + pr_err(FW_BUG "invalid frequency for MMIO timer.\n"); + arch_timer_mmio_freq = 0; + iounmap(base); + return -EINVAL; } ret = arch_timer_mem_register(base, irq); - if (ret) + if (ret) { + iounmap(base); + return ret; + } + + arch_counter_base = base; + arch_timers_present |= ARCH_TIMER_TYPE_MEM; + + return 0; +} + +static int __init arch_timer_mem_of_init(struct device_node *np) +{ + struct arch_timer_mem *timer_mem; + struct device_node *frame_node; + struct resource res; + int i, ret = -EINVAL; + + timer_mem = kzalloc(sizeof(*timer_mem), GFP_KERNEL); + if (!timer_mem) + return -ENOMEM; + + if (of_address_to_resource(np, 0, &res)) goto out; + timer_mem->cntctlbase = res.start; + timer_mem->size = resource_size(&res); + + i = 0; + for_each_available_child_of_node(np, frame_node) { + int n; + struct arch_timer_mem_frame *frame; + + if (i >= ARCH_TIMER_MEM_MAX_FRAMES) { + pr_err(FW_BUG "too many frames, only %u are permitted.\n", + ARCH_TIMER_MEM_MAX_FRAMES); + goto out; + } - if (!arch_timer_needs_of_probing()) + frame = &timer_mem->frame[i]; + + if (of_property_read_u32(frame_node, "frame-number", &n)) { + pr_err(FW_BUG "Missing frame-number\n"); + of_node_put(frame_node); + goto out; + } + frame->frame_nr = n; + + if (of_address_to_resource(frame_node, 0, &res)) { + of_node_put(frame_node); + goto out; + } + frame->cntbase = res.start; + frame->size = resource_size(&res); + + frame->virt_irq = irq_of_parse_and_map(frame_node, + ARCH_TIMER_VIRT_SPI); + frame->phys_irq = irq_of_parse_and_map(frame_node, + ARCH_TIMER_PHYS_SPI); + + i++; + } + timer_mem->num_frames = i; + + /* + * Try to get the frequency from the device tree, + * if fail, we will try the CNTFRQ register in arch_timer_mem_init. + */ + of_property_read_u32(np, "clock-frequency", &arch_timer_mmio_freq); + + ret = arch_timer_mem_init(timer_mem); + if (!ret && !arch_timer_needs_of_probing()) ret = arch_timer_common_init(); out: - iounmap(cntctlbase); - of_node_put(best_frame); + kfree(timer_mem); return ret; } CLOCKSOURCE_OF_DECLARE(armv7_arch_timer_mem, "arm,armv7-timer-mem", - arch_timer_mem_init); + arch_timer_mem_of_init); #ifdef CONFIG_ACPI static int __init map_generic_timer_interrupt(u32 interrupt, u32 flags) -- 2.9.3
WARNING: multiple messages have this Message-ID (diff)
From: fu.wei@linaro.org (fu.wei at linaro.org) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v21 08/13] clocksource: arm_arch_timer: refactor MMIO timer probing. Date: Tue, 7 Feb 2017 02:50:10 +0800 [thread overview] Message-ID: <20170206185015.12296-9-fu.wei@linaro.org> (raw) In-Reply-To: <20170206185015.12296-1-fu.wei@linaro.org> From: Fu Wei <fu.wei@linaro.org> Currently the code to probe MMIO architected timers mixes DT parsing with actual poking of hardware. This makes the code harder than necessary to understand, and makes it difficult to add support for probing via ACPI. This patch factors all the DT-specific logic out of arch_timer_mem_init(), into a new function arch_timer_mem_of_init(). The former pokes the hardware and determines the suitablility of frames based on a datastructure populated by the latter. This cleanly separates the two and will make it possible to add probing using the ACPI GTDT in subsequent patches. Signed-off-by: Fu Wei <fu.wei@linaro.org> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> --- drivers/clocksource/arm_arch_timer.c | 156 +++++++++++++++++++++++++---------- 1 file changed, 111 insertions(+), 45 deletions(-) diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index f2b9ec4..73e875d 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -995,17 +995,20 @@ static int __init arch_timer_of_init(struct device_node *np) CLOCKSOURCE_OF_DECLARE(armv7_arch_timer, "arm,armv7-timer", arch_timer_of_init); CLOCKSOURCE_OF_DECLARE(armv8_arch_timer, "arm,armv8-timer", arch_timer_of_init); -static int __init arch_timer_mem_init(struct device_node *np) +static int __init arch_timer_mem_init(struct arch_timer_mem *timer_mem) { - struct device_node *frame, *best_frame = NULL; void __iomem *cntctlbase, *base; - unsigned int irq, ret = -EINVAL; + struct arch_timer_mem_frame *best_frame = NULL; + unsigned int irq; u32 cnttidr; + int i, ret; - arch_timers_present |= ARCH_TIMER_TYPE_MEM; - cntctlbase = of_iomap(np, 0); + if (!timer_mem->num_frames) + return -ENODEV; + + cntctlbase = ioremap(timer_mem->cntctlbase, timer_mem->size); if (!cntctlbase) { - pr_err("Can't find CNTCTLBase\n"); + pr_err("Can't map CNTCTLBase.\n"); return -ENXIO; } @@ -1015,26 +1018,18 @@ static int __init arch_timer_mem_init(struct device_node *np) * Try to find a virtual capable frame. Otherwise fall back to a * physical capable frame. */ - for_each_available_child_of_node(np, frame) { - int n; - u32 cntacr; - - if (of_property_read_u32(frame, "frame-number", &n)) { - pr_err("Missing frame-number\n"); - of_node_put(frame); - goto out; - } + for (i = 0; i < timer_mem->num_frames; i++) { + u32 cntacr = CNTACR_RFRQ | CNTACR_RWPT | CNTACR_RPCT | + CNTACR_RWVT | CNTACR_RVOFF | CNTACR_RVCT; + int n = timer_mem->frame[i].frame_nr; /* Try enabling everything, and see what sticks */ - cntacr = CNTACR_RFRQ | CNTACR_RWPT | CNTACR_RPCT | - CNTACR_RWVT | CNTACR_RVOFF | CNTACR_RVCT; writel_relaxed(cntacr, cntctlbase + CNTACR(n)); cntacr = readl_relaxed(cntctlbase + CNTACR(n)); if ((cnttidr & CNTTIDR_VIRT(n)) && !(~cntacr & (CNTACR_RWVT | CNTACR_RVCT))) { - of_node_put(best_frame); - best_frame = frame; + best_frame = &timer_mem->frame[i]; arch_timer_mem_use_virtual = true; break; } @@ -1042,55 +1037,126 @@ static int __init arch_timer_mem_init(struct device_node *np) if (~cntacr & (CNTACR_RWPT | CNTACR_RPCT)) continue; - of_node_put(best_frame); - best_frame = of_node_get(frame); + best_frame = &timer_mem->frame[i]; } + iounmap(cntctlbase); - ret= -ENXIO; - base = arch_counter_base = of_io_request_and_map(best_frame, 0, - "arch_mem_timer"); - if (IS_ERR(base)) { - pr_err("Can't map frame's registers\n"); - goto out; + if (!best_frame) { + pr_err("Can't find frame for register\n"); + return -EINVAL; } if (arch_timer_mem_use_virtual) - irq = irq_of_parse_and_map(best_frame, ARCH_TIMER_VIRT_SPI); + irq = best_frame->virt_irq; else - irq = irq_of_parse_and_map(best_frame, ARCH_TIMER_PHYS_SPI); + irq = best_frame->phys_irq; - ret = -EINVAL; if (!irq) { pr_err("Frame missing %s irq.\n", arch_timer_mem_use_virtual ? "virt" : "phys"); - goto out; + return -EINVAL; } - /* - * Try to determine the frequency from the device tree, - * if fail, get the frequency from the CNTFRQ reg of MMIO timer. - */ - if (of_property_read_u32(np, "clock-frequency", &arch_timer_mmio_freq)) + if (!request_mem_region(best_frame->cntbase, best_frame->size, + "arch_mem_timer")) + return -EBUSY; + + base = ioremap(best_frame->cntbase, best_frame->size); + if (!base) { + pr_err("Can't map frame's registers\n"); + return -ENXIO; + } + + if (!arch_timer_mmio_freq) arch_timer_mmio_freq = arch_timer_get_mmio_freq(base); - if (!arch_timer_mmio_freq) { - pr_err(FW_BUG "frequency not available for MMIO timer.\n"); - ret = -EINVAL; - goto out; + if (!arch_timer_mmio_freq || + (arch_timer_sysreg_freq && + arch_timer_mmio_freq != arch_timer_sysreg_freq)) { + pr_err(FW_BUG "invalid frequency for MMIO timer.\n"); + arch_timer_mmio_freq = 0; + iounmap(base); + return -EINVAL; } ret = arch_timer_mem_register(base, irq); - if (ret) + if (ret) { + iounmap(base); + return ret; + } + + arch_counter_base = base; + arch_timers_present |= ARCH_TIMER_TYPE_MEM; + + return 0; +} + +static int __init arch_timer_mem_of_init(struct device_node *np) +{ + struct arch_timer_mem *timer_mem; + struct device_node *frame_node; + struct resource res; + int i, ret = -EINVAL; + + timer_mem = kzalloc(sizeof(*timer_mem), GFP_KERNEL); + if (!timer_mem) + return -ENOMEM; + + if (of_address_to_resource(np, 0, &res)) goto out; + timer_mem->cntctlbase = res.start; + timer_mem->size = resource_size(&res); + + i = 0; + for_each_available_child_of_node(np, frame_node) { + int n; + struct arch_timer_mem_frame *frame; + + if (i >= ARCH_TIMER_MEM_MAX_FRAMES) { + pr_err(FW_BUG "too many frames, only %u are permitted.\n", + ARCH_TIMER_MEM_MAX_FRAMES); + goto out; + } - if (!arch_timer_needs_of_probing()) + frame = &timer_mem->frame[i]; + + if (of_property_read_u32(frame_node, "frame-number", &n)) { + pr_err(FW_BUG "Missing frame-number\n"); + of_node_put(frame_node); + goto out; + } + frame->frame_nr = n; + + if (of_address_to_resource(frame_node, 0, &res)) { + of_node_put(frame_node); + goto out; + } + frame->cntbase = res.start; + frame->size = resource_size(&res); + + frame->virt_irq = irq_of_parse_and_map(frame_node, + ARCH_TIMER_VIRT_SPI); + frame->phys_irq = irq_of_parse_and_map(frame_node, + ARCH_TIMER_PHYS_SPI); + + i++; + } + timer_mem->num_frames = i; + + /* + * Try to get the frequency from the device tree, + * if fail, we will try the CNTFRQ register in arch_timer_mem_init. + */ + of_property_read_u32(np, "clock-frequency", &arch_timer_mmio_freq); + + ret = arch_timer_mem_init(timer_mem); + if (!ret && !arch_timer_needs_of_probing()) ret = arch_timer_common_init(); out: - iounmap(cntctlbase); - of_node_put(best_frame); + kfree(timer_mem); return ret; } CLOCKSOURCE_OF_DECLARE(armv7_arch_timer_mem, "arm,armv7-timer-mem", - arch_timer_mem_init); + arch_timer_mem_of_init); #ifdef CONFIG_ACPI static int __init map_generic_timer_interrupt(u32 interrupt, u32 flags) -- 2.9.3
next prev parent reply other threads:[~2017-02-06 18:50 UTC|newest] Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-02-06 18:50 [PATCH v21 00/13] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` [PATCH v21 01/13] clocksource: arm_arch_timer: introduce two functions to get the frequency from mmio and sysreg fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-03-17 18:05 ` Mark Rutland 2017-03-17 18:05 ` Mark Rutland 2017-03-17 18:05 ` Mark Rutland 2017-03-20 7:36 ` Fu Wei 2017-03-20 7:36 ` Fu Wei 2017-03-20 7:36 ` Fu Wei 2017-03-20 9:43 ` Fu Wei 2017-03-20 9:43 ` Fu Wei 2017-03-20 9:43 ` Fu Wei 2017-03-20 10:41 ` Mark Rutland 2017-03-20 10:41 ` Mark Rutland 2017-03-20 10:41 ` Mark Rutland 2017-03-20 11:09 ` Fu Wei 2017-03-20 11:09 ` Fu Wei 2017-03-20 11:09 ` Fu Wei 2017-02-06 18:50 ` [PATCH v21 03/13] clocksource: arm_arch_timer: remove arch_timer_detect_rate fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-03-17 18:07 ` Mark Rutland 2017-03-17 18:07 ` Mark Rutland 2017-03-17 18:07 ` Mark Rutland 2017-03-20 6:59 ` Fu Wei 2017-03-20 6:59 ` Fu Wei 2017-03-20 6:59 ` Fu Wei 2017-02-06 18:50 ` [PATCH v21 04/13] clocksource: arm_arch_timer: split arch_timer_rate for different types of timer fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-03-17 19:05 ` Mark Rutland 2017-03-17 19:05 ` Mark Rutland 2017-03-17 19:05 ` Mark Rutland 2017-03-20 13:35 ` Fu Wei 2017-03-20 13:35 ` Fu Wei 2017-03-20 13:35 ` Fu Wei 2017-02-06 18:50 ` [PATCH v21 05/13] clocksource: arm_arch_timer: refactor arch_timer_needs_probing fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` [PATCH v21 06/13] clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` [PATCH v21 07/13] clocksource: arm_arch_timer: introduce some new structs to prepare for GTDT fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` fu.wei [this message] 2017-02-06 18:50 ` [PATCH v21 08/13] clocksource: arm_arch_timer: refactor MMIO timer probing fu.wei at linaro.org 2017-02-06 18:50 ` [PATCH v21 09/13] acpi/arm64: Add GTDT table parse driver fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` [PATCH v21 10/13] clocksource: arm_arch_timer: simplify ACPI support code fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` [PATCH v21 11/13] acpi/arm64: Add memory-mapped timer support in GTDT driver fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` fu.wei 2017-03-17 19:40 ` Mark Rutland 2017-03-17 19:40 ` Mark Rutland 2017-03-17 19:40 ` Mark Rutland 2017-03-20 13:38 ` Fu Wei 2017-03-20 13:38 ` Fu Wei 2017-03-20 13:38 ` Fu Wei 2017-02-06 18:50 ` [PATCH v21 12/13] clocksource: arm_arch_timer: add GTDT support for memory-mapped timer fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` [PATCH v21 13/13] acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver fu.wei 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` fu.wei 2017-03-17 20:01 ` Mark Rutland 2017-03-17 20:01 ` Mark Rutland 2017-03-17 20:01 ` Mark Rutland 2017-03-17 20:01 ` Mark Rutland 2017-03-20 17:57 ` Fu Wei 2017-03-20 17:57 ` Fu Wei 2017-03-20 17:57 ` Fu Wei 2017-03-20 18:09 ` Mark Rutland 2017-03-20 18:09 ` Mark Rutland 2017-03-20 18:09 ` Mark Rutland 2017-03-20 18:50 ` [Linaro-acpi] " Lurndal, Scott 2017-03-20 18:50 ` Lurndal, Scott 2017-03-20 18:50 ` Lurndal, Scott 2017-03-21 3:48 ` Fu Wei 2017-03-21 3:48 ` Fu Wei 2017-03-21 3:48 ` Fu Wei 2017-03-21 12:48 ` Lurndal, Scott 2017-03-21 12:48 ` Lurndal, Scott 2017-03-21 12:48 ` Lurndal, Scott 2017-03-21 5:12 ` Fu Wei 2017-03-21 5:12 ` Fu Wei 2017-03-21 5:12 ` Fu Wei [not found] ` <20170206185015.12296-1-fu.wei-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2017-02-06 18:50 ` [PATCH v21 02/13] clocksource: arm_arch_timer: separate out device-tree code from arch_timer_detect_rate fu.wei-QSEj5FYQhm4dnm+yROfE0A 2017-02-06 18:50 ` fu.wei at linaro.org 2017-02-06 18:50 ` fu.wei 2017-02-20 16:20 ` [PATCH v21 00/13] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer Fu Wei 2017-02-20 16:20 ` Fu Wei 2017-02-20 16:20 ` Fu Wei [not found] ` <CADyBb7t_zrLetPQQ8=k8oN6iMHhuMHO8O3XTZqGYvTT9p0evKw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2017-03-09 22:47 ` Fu Wei 2017-03-09 22:47 ` Fu Wei 2017-03-09 22:47 ` Fu Wei 2017-03-17 20:03 ` Mark Rutland 2017-03-17 20:03 ` Mark Rutland 2017-03-17 20:03 ` Mark Rutland 2017-03-20 5:09 ` Fu Wei 2017-03-20 5:09 ` Fu Wei 2017-03-20 5:09 ` Fu Wei
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