From: Fu Wei fu.wei@linaro.org
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.
[Mark: reword commit message]
Signed-off-by: Fu Wei fu.wei@linaro.org Reviewed-by: Hanjun Guo hanjun.guo@linaro.org --- include/clocksource/arm_arch_timer.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h index 4a98c06..cc805b7 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);