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Replaced get_tick_per_sec() by NANOSECONDS_PER_SECOND

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This patch replaces get_ticks_per_sec() calls with the macro
NANOSECONDS_PER_SECOND. Also, as there are no callers, get_ticks_per_sec()
is then removed. This replacement improves the readability and
understandability of code.

For example,

timer_mod(fdctrl->result_timer,
qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + (get_ticks_per_sec() / 50));

NANOSECONDS_PER_SECOND makes it obvious that qemu_clock_get_ns
matches the unit of the expression on the right side of the plus.

Backports commit 73bcb24d932912f8e75e1d88da0fc0ac6d4bce78 from qemu
This commit is contained in:
Rutuja Shah 2018-02-21 23:21:11 -05:00 committed by Lioncash
parent c024ca9f49
commit d9fdc180d7
No known key found for this signature in database
GPG key ID: 4E3C3CC1031BA9C7
17 changed files with 11 additions and 28 deletions
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1
qemu/aarch64.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_aarch64
#define get_phys_addr_v6 get_phys_addr_v6_aarch64
#define get_system_memory get_system_memory_aarch64
#define get_ticks_per_sec get_ticks_per_sec_aarch64
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_aarch64
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__aarch64
#define gt_cntfrq_access gt_cntfrq_access_aarch64

1
qemu/aarch64eb.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_aarch64eb
#define get_phys_addr_v6 get_phys_addr_v6_aarch64eb
#define get_system_memory get_system_memory_aarch64eb
#define get_ticks_per_sec get_ticks_per_sec_aarch64eb
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_aarch64eb
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__aarch64eb
#define gt_cntfrq_access gt_cntfrq_access_aarch64eb

1
qemu/arm.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_arm
#define get_phys_addr_v6 get_phys_addr_v6_arm
#define get_system_memory get_system_memory_arm
#define get_ticks_per_sec get_ticks_per_sec_arm
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_arm
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__arm
#define gt_cntfrq_access gt_cntfrq_access_arm

1
qemu/armeb.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_armeb
#define get_phys_addr_v6 get_phys_addr_v6_armeb
#define get_system_memory get_system_memory_armeb
#define get_ticks_per_sec get_ticks_per_sec_armeb
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_armeb
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__armeb
#define gt_cntfrq_access gt_cntfrq_access_armeb

1
qemu/header_gen.py
View file

@ -1363,7 +1363,6 @@ symbols = (
'get_phys_addr_v5',
'get_phys_addr_v6',
'get_system_memory',
'get_ticks_per_sec',
'g_list_insert_sorted_merged',
'_GLOBAL_OFFSET_TABLE_',
'gt_cntfrq_access',

10
qemu/hw/mips/cputimer.c
View file

@ -50,8 +50,8 @@ static void cpu_mips_timer_update(CPUMIPSState *env)
now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
wait = env->CP0_Compare - env->CP0_Count -
(uint32_t)muldiv64(now, TIMER_FREQ, get_ticks_per_sec());
next = now + muldiv64(wait, get_ticks_per_sec(), TIMER_FREQ);
(uint32_t)muldiv64(now, TIMER_FREQ, NANOSECONDS_PER_SECOND);
next = now + muldiv64(wait, NANOSECONDS_PER_SECOND, TIMER_FREQ);
timer_mod(env->timer, next);
#endif
}
@ -83,7 +83,7 @@ uint32_t cpu_mips_get_count (CPUMIPSState *env)
//}
return env->CP0_Count +
(uint32_t)muldiv64(now, TIMER_FREQ, get_ticks_per_sec());
(uint32_t)muldiv64(now, TIMER_FREQ, NANOSECONDS_PER_SECOND);
}
}
@ -101,7 +101,7 @@ void cpu_mips_store_count (CPUMIPSState *env, uint32_t count)
/* Store new count register */
env->CP0_Count =
count - (uint32_t)muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
TIMER_FREQ, get_ticks_per_sec());
TIMER_FREQ, NANOSECONDS_PER_SECOND);
/* Update timer timer */
cpu_mips_timer_update(env);
}
@ -127,5 +127,5 @@ void cpu_mips_stop_count(CPUMIPSState *env)
{
/* Store the current value */
env->CP0_Count += (uint32_t)muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
TIMER_FREQ, get_ticks_per_sec());
TIMER_FREQ, NANOSECONDS_PER_SECOND);
}

9
qemu/include/qemu/timer.h
View file

@ -5,6 +5,8 @@
#include "qemu-common.h"
#include "qemu/host-utils.h"
#define NANOSECONDS_PER_SECOND 1000000000LL
/* timers */
#define SCALE_MS 1000000
@ -149,11 +151,6 @@ void cpu_enable_ticks(void);
/* Caller must hold BQL */
void cpu_disable_ticks(void);
static inline int64_t get_ticks_per_sec(void)
{
return 1000000000LL;
}
/*
* Low level clock functions
*/
@ -177,7 +174,7 @@ static inline int64_t get_clock(void)
{
LARGE_INTEGER ti;
QueryPerformanceCounter(&ti);
return muldiv64(ti.QuadPart, (uint32_t)get_ticks_per_sec(), (uint32_t)clock_freq);
return muldiv64(ti.QuadPart, (uint32_t)NANOSECONDS_PER_SECOND, (uint32_t)clock_freq);
}
#else

1
qemu/m68k.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_m68k
#define get_phys_addr_v6 get_phys_addr_v6_m68k
#define get_system_memory get_system_memory_m68k
#define get_ticks_per_sec get_ticks_per_sec_m68k
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_m68k
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__m68k
#define gt_cntfrq_access gt_cntfrq_access_m68k

1
qemu/mips.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_mips
#define get_phys_addr_v6 get_phys_addr_v6_mips
#define get_system_memory get_system_memory_mips
#define get_ticks_per_sec get_ticks_per_sec_mips
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_mips
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__mips
#define gt_cntfrq_access gt_cntfrq_access_mips

1
qemu/mips64.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_mips64
#define get_phys_addr_v6 get_phys_addr_v6_mips64
#define get_system_memory get_system_memory_mips64
#define get_ticks_per_sec get_ticks_per_sec_mips64
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_mips64
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__mips64
#define gt_cntfrq_access gt_cntfrq_access_mips64

1
qemu/mips64el.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_mips64el
#define get_phys_addr_v6 get_phys_addr_v6_mips64el
#define get_system_memory get_system_memory_mips64el
#define get_ticks_per_sec get_ticks_per_sec_mips64el
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_mips64el
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__mips64el
#define gt_cntfrq_access gt_cntfrq_access_mips64el

1
qemu/mipsel.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_mipsel
#define get_phys_addr_v6 get_phys_addr_v6_mipsel
#define get_system_memory get_system_memory_mipsel
#define get_ticks_per_sec get_ticks_per_sec_mipsel
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_mipsel
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__mipsel
#define gt_cntfrq_access gt_cntfrq_access_mipsel

1
qemu/powerpc.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_powerpc
#define get_phys_addr_v6 get_phys_addr_v6_powerpc
#define get_system_memory get_system_memory_powerpc
#define get_ticks_per_sec get_ticks_per_sec_powerpc
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_powerpc
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__powerpc
#define gt_cntfrq_access gt_cntfrq_access_powerpc

1
qemu/sparc.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_sparc
#define get_phys_addr_v6 get_phys_addr_v6_sparc
#define get_system_memory get_system_memory_sparc
#define get_ticks_per_sec get_ticks_per_sec_sparc
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_sparc
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__sparc
#define gt_cntfrq_access gt_cntfrq_access_sparc

1
qemu/sparc64.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_sparc64
#define get_phys_addr_v6 get_phys_addr_v6_sparc64
#define get_system_memory get_system_memory_sparc64
#define get_ticks_per_sec get_ticks_per_sec_sparc64
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_sparc64
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__sparc64
#define gt_cntfrq_access gt_cntfrq_access_sparc64

6
qemu/target-arm/helper.c
View file

@ -714,7 +714,7 @@ void pmccntr_sync(CPUARMState *env)
uint64_t temp_ticks;
temp_ticks = muldiv64(qemu_clock_get_us(QEMU_CLOCK_VIRTUAL),
get_ticks_per_sec(), 1000000);
NANOSECONDS_PER_SECOND, 1000000);
if (env->cp15.c9_pmcr & PMCRD) {
/* Increment once every 64 processor clock cycles */
@ -753,7 +753,7 @@ static uint64_t pmccntr_read(CPUARMState *env, const ARMCPRegInfo *ri)
}
total_ticks = muldiv64(qemu_clock_get_us(QEMU_CLOCK_VIRTUAL),
get_ticks_per_sec(), 1000000);
NANOSECONDS_PER_SECOND, 1000000);
if (env->cp15.c9_pmcr & PMCRD) {
/* Increment once every 64 processor clock cycles */
@ -774,7 +774,7 @@ static void pmccntr_write(CPUARMState *env, const ARMCPRegInfo *ri,
}
total_ticks = muldiv64(qemu_clock_get_us(QEMU_CLOCK_VIRTUAL),
get_ticks_per_sec(), 1000000);
NANOSECONDS_PER_SECOND, 1000000);
if (env->cp15.c9_pmcr & PMCRD) {
/* Increment once every 64 processor clock cycles */

1
qemu/x86_64.h
View file

@ -1357,7 +1357,6 @@
#define get_phys_addr_v5 get_phys_addr_v5_x86_64
#define get_phys_addr_v6 get_phys_addr_v6_x86_64
#define get_system_memory get_system_memory_x86_64
#define get_ticks_per_sec get_ticks_per_sec_x86_64
#define g_list_insert_sorted_merged g_list_insert_sorted_merged_x86_64
#define _GLOBAL_OFFSET_TABLE_ _GLOBAL_OFFSET_TABLE__x86_64
#define gt_cntfrq_access gt_cntfrq_access_x86_64