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Groups > linux.kernel > #1605797
| From | fu.wei@linaro.org |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v22 05/11] clocksource: arm_arch_timer: introduce some new structs to prepare for GTDT |
| Date | 2017-03-21 17:40 +0100 |
| Message-ID | <tnuZd-5Ru-55@gated-at.bofh.it> (permalink) |
| References | <tnuZb-5Ru-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Fu Wei <fu.wei@linaro.org>
The patch introduce two new structs: arch_timer_mem, arch_timer_mem_frame.
And also introduce a new define: ARCH_TIMER_MEM_MAX_FRAMES
These will be used for refactoring the memory-mapped timer init code to
prepare for GTDT
Signed-off-by: Fu Wei <fu.wei@linaro.org>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
---
include/clocksource/arm_arch_timer.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h
index 4a98c06..b7dd185 100644
--- a/include/clocksource/arm_arch_timer.h
+++ b/include/clocksource/arm_arch_timer.h
@@ -57,6 +57,8 @@ enum arch_timer_spi_nr {
#define ARCH_TIMER_MEM_PHYS_ACCESS 2
#define ARCH_TIMER_MEM_VIRT_ACCESS 3
+#define ARCH_TIMER_MEM_MAX_FRAMES 8
+
#define ARCH_TIMER_USR_PCT_ACCESS_EN (1 << 0) /* physical counter */
#define ARCH_TIMER_USR_VCT_ACCESS_EN (1 << 1) /* virtual counter */
#define ARCH_TIMER_VIRT_EVT_EN (1 << 2)
@@ -72,6 +74,21 @@ struct arch_timer_kvm_info {
int virtual_irq;
};
+struct arch_timer_mem_frame {
+ int frame_nr;
+ phys_addr_t cntbase;
+ size_t size;
+ int phys_irq;
+ int virt_irq;
+};
+
+struct arch_timer_mem {
+ phys_addr_t cntctlbase;
+ size_t size;
+ int num_frames;
+ struct arch_timer_mem_frame frame[ARCH_TIMER_MEM_MAX_FRAMES];
+};
+
#ifdef CONFIG_ARM_ARCH_TIMER
extern u32 arch_timer_get_rate(void);
--
2.9.3
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[PATCH v22 00/11] acpi, clocksource: add GTDT driver and GTDT support in arm_arch_timer fu.wei@linaro.org - 2017-03-21 17:40 +0100 [PATCH v22 03/11] clocksource: arm_arch_timer: refactor arch_timer_needs_probing fu.wei@linaro.org - 2017-03-21 17:40 +0100 [PATCH v22 02/11] clocksource: arm_arch_timer: separate out device-tree code and remove arch_timer_detect_rate fu.wei@linaro.org - 2017-03-21 17:40 +0100 [PATCH v22 04/11] clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call fu.wei@linaro.org - 2017-03-21 17:40 +0100 [PATCH v22 01/11] clocksource: arm_arch_timer: introduce a wrapper function to get the frequency from mmio. fu.wei@linaro.org - 2017-03-21 17:40 +0100 [PATCH v22 05/11] clocksource: arm_arch_timer: introduce some new structs to prepare for GTDT fu.wei@linaro.org - 2017-03-21 17:40 +0100 [PATCH v22 10/11] clocksource: arm_arch_timer: add GTDT support for memory-mapped timer fu.wei@linaro.org - 2017-03-21 17:50 +0100 [PATCH v22 11/11] acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver fu.wei@linaro.org - 2017-03-21 17:50 +0100 [PATCH v22 09/11] acpi/arm64: Add memory-mapped timer support in GTDT driver fu.wei@linaro.org - 2017-03-21 17:50 +0100 [PATCH v22 07/11] acpi/arm64: Add GTDT table parse driver fu.wei@linaro.org - 2017-03-21 17:50 +0100 [PATCH v22 08/11] clocksource: arm_arch_timer: simplify ACPI support code. fu.wei@linaro.org - 2017-03-21 17:50 +0100
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