From 51263d87969873692b475aa8c21bfadf82e4ee78 Mon Sep 17 00:00:00 2001
From: Zbigniew Bodek <zbigniew.bodek@huawei.com>
Date: Wed, 28 Oct 2020 23:41:30 +0800
Subject: [PATCH] Add kernel configuration option to enable/disable HR Timer

High resolution timer can now be excluded from the build.
There is currently no HR Timer implementation for other
platform than HiSi.

Note: HR Timer will be enabled by default

Signed-off-by: Zbigniew Bodek <zbigniew.bodek@huawei.com>
Change-Id: I5daf8e0ceec2a17025b579513e3bd74db1040916
---
 bsd/compat/linuxkpi/Makefile | 4 ++++
 platform/Kconfig             | 7 +++++++
 platform/Makefile            | 5 ++++-
 platform/bsp.mk              | 4 +++-
 4 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/bsd/compat/linuxkpi/Makefile b/bsd/compat/linuxkpi/Makefile
index 5244c469..be7ffc70 100644
--- a/bsd/compat/linuxkpi/Makefile
+++ b/bsd/compat/linuxkpi/Makefile
@@ -33,6 +33,10 @@ MODULE_NAME := $(notdir $(shell pwd))
 
 LOCAL_SRCS :=  $(wildcard src/*.c)
 
+ifneq ($(LOSCFG_HRTIMER_ENABLE), y)
+LOCAL_SRCS := $(filter-out src/linux_hrtimer.c, $(LOCAL_SRCS))
+endif
+
 LOCAL_INCLUDE := \
         -I $(LITEOSTOPDIR)/kernel/base/include \
         -I $(LITEOSTOPDIR)/bsd/compat/linuxkpi/include
diff --git a/platform/Kconfig b/platform/Kconfig
index 088d3a9d..db1af3f9 100644
--- a/platform/Kconfig
+++ b/platform/Kconfig
@@ -56,3 +56,10 @@ config PLATFORM_BSP_GIC_V3
       General Interrupt Controller version 3.
 
 endchoice
+
+config HRTIMER_ENABLE
+    bool "HR TIMER enable"
+    default y
+    help
+      Enable High-resolution timer support
+
diff --git a/platform/Makefile b/platform/Makefile
index eee94a0a..34ab7750 100644
--- a/platform/Makefile
+++ b/platform/Makefile
@@ -33,10 +33,13 @@ MODULE_NAME := bsp
 
 LOCAL_SRCS = $(wildcard $(HWI_SRC)/*.c) \
             $(wildcard $(TIMER_SRC)/*.c) \
-            $(wildcard $(HRTIMER_SRC)/*.c) \
             $(wildcard $(UART_SRC)/*.c) \
             $(wildcard ./main.c)
 
+ifeq ($(LOSCFG_HRTIMER_ENABLE), y)
+LOCAL_SRCS += $(wildcard $(HRTIMER_SRC)/*.c)
+endif
+
 LOCAL_INCLUDE += -I $(LITEOSTOPDIR)/compat/posix/src \
                  -I $(LITEOSTOPDIR)/bsd/dev/random
 
diff --git a/platform/bsp.mk b/platform/bsp.mk
index 0223f82d..99889951 100644
--- a/platform/bsp.mk
+++ b/platform/bsp.mk
@@ -64,9 +64,11 @@ else ifeq ($(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7), y)
 
 endif
 
+ifeq ($(LOSCFG_HRTIMER_ENABLE), y)
+HRTIMER_SRC := hw/$(HRTIMER_TYPE)
+endif
 HWI_SRC     := hw/$(HWI_TYPE)
 TIMER_SRC   := hw/$(TIMER_TYPE)
-HRTIMER_SRC := hw/$(HRTIMER_TYPE)
 NET_SRC     := net/$(NET_TYPE)
 UART_SRC    := uart/$(UART_TYPE)
 USB_SRC     := usb/$(USB_TYPE)