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authorFu Wei <fu.wei@linaro.org>2017-04-01 01:50:59 +0800
committerMark Rutland <mark.rutland@arm.com>2017-04-19 16:11:48 +0100
commitb3251b8fd12337bf04bce46d4af35988742eef95 (patch)
tree4a5bd19ee840e75394153df61bb59c9e84cfda77 /include/clocksource
parentca0e1b5214eee56a7fc4c7a5399323ab0bad73ef (diff)
downloadlinux-stericsson-b3251b8fd12337bf04bce46d4af35988742eef95.tar.gz
clocksource: arm_arch_timer: add structs to describe MMIO timer
In preparation for ACPI GTDT support, this patch adds structs to describe the MMIO timers indepedent of the firmware interface. Subsequent patches will use these to split the FW/HW probing logic, so that the HW probing logic can be shared by ACPI and DT. Signed-off-by: Fu Wei <fu.wei@linaro.org> Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Diffstat (limited to 'include/clocksource')
-rw-r--r--include/clocksource/arm_arch_timer.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h
index 4a98c060d80a..cc805b72994a 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 +74,20 @@ struct arch_timer_kvm_info {
int virtual_irq;
};
+struct arch_timer_mem_frame {
+ bool valid;
+ phys_addr_t cntbase;
+ size_t size;
+ int phys_irq;
+ int virt_irq;
+};
+
+struct arch_timer_mem {
+ phys_addr_t cntctlbase;
+ size_t size;
+ struct arch_timer_mem_frame frame[ARCH_TIMER_MEM_MAX_FRAMES];
+};
+
#ifdef CONFIG_ARM_ARCH_TIMER
extern u32 arch_timer_get_rate(void);