From: Lionel Sambuc <lionel.sambuc@gmail.com>
Date: Sat, 18 Jun 2016 08:00:40 +0000 (+0200)
Subject: kernel/cpulocals.h: Simplify macros
X-Git-Url: http://zhaoyanbai.com/repos/zpipe.c?a=commitdiff_plain;h=733a844ac6282c03308d5ea03426b5863dfb06c3;p=minix.git

kernel/cpulocals.h: Simplify macros

Change-Id: Ice845fb0743ff686398293cef2620f5ac9c902ad
---

diff --git a/minix/kernel/cpulocals.c b/minix/kernel/cpulocals.c
index 17be8075a..d2a173470 100644
--- a/minix/kernel/cpulocals.c
+++ b/minix/kernel/cpulocals.c
@@ -1,3 +1,3 @@
 #include "kernel/kernel.h"
 
-DEFINE_CPULOCAL_VARS;
+struct __cpu_local_vars __cpu_local_vars CPULOCAL_ARRAY;
diff --git a/minix/kernel/cpulocals.h b/minix/kernel/cpulocals.h
index a13e58a61..588196e5e 100644
--- a/minix/kernel/cpulocals.h
+++ b/minix/kernel/cpulocals.h
@@ -10,7 +10,7 @@
 
 #define CPULOCAL_ARRAY	[CONFIG_MAX_CPUS]
 
-#define get_cpu_var(cpu, name)		CPULOCAL_STRUCT[cpu].name
+#define get_cpu_var(cpu, name)		__cpu_local_vars[cpu].name
 #define get_cpu_var_ptr(cpu, name)	(&(get_cpu_var(cpu, name)))
 #define get_cpulocal_var(name)		get_cpu_var(cpuid, name)
 #define get_cpulocal_var_ptr(name)	get_cpu_var_ptr(cpuid, name)
@@ -24,69 +24,55 @@
 
 #define CPULOCAL_ARRAY
 
-#define get_cpulocal_var(name)		CPULOCAL_STRUCT.name
+#define get_cpulocal_var(name)		__cpu_local_vars.name
 #define get_cpulocal_var_ptr(name)	&(get_cpulocal_var(name))
 #define get_cpu_var(cpu, name)		get_cpulocal_var(name)
 #define get_cpu_var_ptr(cpu, name)	get_cpulocal_var_ptr(name)
 
 #endif
 
-
-
-#define DECLARE_CPULOCAL(type, name)	type name
-
-#define CPULOCAL_STRUCT			__cpu_local_vars
-#define ___CPULOCAL_START		struct CPULOCAL_STRUCT {
-#define ___CPULOCAL_END		} CPULOCAL_STRUCT CPULOCAL_ARRAY;
-
-#define DECLARE_CPULOCAL_START		extern ___CPULOCAL_START
-#define DECLARE_CPULOCAL_END		___CPULOCAL_END
-
-#define DEFINE_CPULOCAL_VARS	struct CPULOCAL_STRUCT CPULOCAL_STRUCT CPULOCAL_ARRAY
-
-
 /*
  * The global cpu local variables in use
  */
-DECLARE_CPULOCAL_START
+extern struct __cpu_local_vars {
 
 /* Process scheduling information and the kernel reentry count. */
-DECLARE_CPULOCAL(struct proc *,proc_ptr);/* pointer to currently running process */
-DECLARE_CPULOCAL(struct proc *,bill_ptr);/* process to bill for clock ticks */
-DECLARE_CPULOCAL(struct proc ,idle_proc);/* stub for an idle process */
+	struct proc *proc_ptr;/* pointer to currently running process */
+	struct proc *bill_ptr;/* process to bill for clock ticks */
+	struct proc idle_proc;/* stub for an idle process */
 
 /* 
  * signal whether pagefault is already being handled to detect recursive
  * pagefaults
  */
-DECLARE_CPULOCAL(int, pagefault_handled);
+	int pagefault_handled;
 
 /*
  * which processpage tables are loaded right now. We need to know this because
  * some processes are loaded in each process pagetables and don't have their own
  * pagetables. Therefore we cannot use the proc_ptr pointer
  */
-DECLARE_CPULOCAL(struct proc *, ptproc);
+	struct proc * ptproc;
 
 /* CPU private run queues */
-DECLARE_CPULOCAL(struct proc *, run_q_head[NR_SCHED_QUEUES]); /* ptrs to ready list headers */
-DECLARE_CPULOCAL(struct proc *, run_q_tail[NR_SCHED_QUEUES]); /* ptrs to ready list tails */
-DECLARE_CPULOCAL(volatile int, cpu_is_idle); /* let the others know that you are idle */
+	struct proc * run_q_head[NR_SCHED_QUEUES]; /* ptrs to ready list headers */
+	struct proc * run_q_tail[NR_SCHED_QUEUES]; /* ptrs to ready list tails */
+	int cpu_is_idle; /* let the others know that you are idle */
 
-DECLARE_CPULOCAL(volatile int, idle_interrupted); /* to interrupt busy-idle
+	int idle_interrupted; /* to interrupt busy-idle
 						     while profiling */
 
-DECLARE_CPULOCAL(u64_t ,tsc_ctr_switch); /* when did we switched time accounting */
+	u64_t tsc_ctr_switch; /* when did we switched time accounting */
 
 /* last values read from cpu when sending ooq msg to scheduler */
-DECLARE_CPULOCAL(u64_t, cpu_last_tsc);
-DECLARE_CPULOCAL(u64_t, cpu_last_idle);
+	u64_t cpu_last_tsc;
+	u64_t cpu_last_idle;
 
 
-DECLARE_CPULOCAL(char ,fpu_presence); /* whether the cpu has FPU or not */
-DECLARE_CPULOCAL(struct proc * ,fpu_owner); /* who owns the FPU of the local cpu */
+	char fpu_presence; /* whether the cpu has FPU or not */
+	struct proc * fpu_owner; /* who owns the FPU of the local cpu */
 
-DECLARE_CPULOCAL_END
+} __cpu_local_vars CPULOCAL_ARRAY;
 
 #endif /* __ASSEMBLY__ */