diff options
Diffstat (limited to 'ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c')
| -rw-r--r-- | ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c | 46 |
1 files changed, 22 insertions, 24 deletions
diff --git a/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c b/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c index 4b1c9ac49e..d663a76a9b 100644 --- a/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c +++ b/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c @@ -7,7 +7,6 @@ **/
-
#include <Base.h>
#include <Library/ArmLib.h>
#include <Library/BaseLib.h>
@@ -16,16 +15,15 @@ #include <Library/PcdLib.h>
#include <Library/ArmGenericTimerCounterLib.h>
-#define TICKS_PER_MICRO_SEC (PcdGet32 (PcdArmArchTimerFreqInHz)/1000000U)
+#define TICKS_PER_MICRO_SEC (PcdGet32 (PcdArmArchTimerFreqInHz)/1000000U)
// Select appropriate multiply function for platform architecture.
#ifdef MDE_CPU_ARM
-#define MULT_U64_X_N MultU64x32
+#define MULT_U64_X_N MultU64x32
#else
-#define MULT_U64_X_N MultU64x64
+#define MULT_U64_X_N MultU64x64
#endif
-
RETURN_STATUS
EFIAPI
TimerConstructor (
@@ -36,7 +34,6 @@ TimerConstructor ( // Check if the ARM Generic Timer Extension is implemented.
//
if (ArmIsArchTimerImplemented ()) {
-
//
// Check if Architectural Timer frequency is pre-determined by the platform
// (ie. nonzero).
@@ -49,7 +46,7 @@ TimerConstructor ( //
ASSERT (TICKS_PER_MICRO_SEC);
-#ifdef MDE_CPU_ARM
+ #ifdef MDE_CPU_ARM
//
// Only set the frequency for ARMv7. We expect the secure firmware to
// have already done it.
@@ -59,7 +56,8 @@ TimerConstructor ( if (ArmHasSecurityExtensions ()) {
ArmGenericTimerSetTimerFreq (PcdGet32 (PcdArmArchTimerFreqInHz));
}
-#endif
+
+ #endif
}
//
@@ -68,7 +66,6 @@ TimerConstructor ( // If the reset value (0) is returned, just ASSERT.
//
ASSERT (ArmGenericTimerGetTimerFreq () != 0);
-
} else {
DEBUG ((DEBUG_ERROR, "ARM Architectural Timer is not available in the CPU, hence this library cannot be used.\n"));
ASSERT (0);
@@ -90,16 +87,16 @@ EFIAPI GetPlatformTimerFreq (
)
{
- UINTN TimerFreq;
+ UINTN TimerFreq;
TimerFreq = PcdGet32 (PcdArmArchTimerFreqInHz);
if (TimerFreq == 0) {
TimerFreq = ArmGenericTimerGetTimerFreq ();
}
+
return TimerFreq;
}
-
/**
Stalls the CPU for the number of microseconds specified by MicroSeconds.
@@ -111,11 +108,11 @@ GetPlatformTimerFreq ( UINTN
EFIAPI
MicroSecondDelay (
- IN UINTN MicroSeconds
+ IN UINTN MicroSeconds
)
{
- UINT64 TimerTicks64;
- UINT64 SystemCounterVal;
+ UINT64 TimerTicks64;
+ UINT64 SystemCounterVal;
// Calculate counter ticks that represent requested delay:
// = MicroSeconds x TICKS_PER_MICRO_SEC
@@ -141,7 +138,6 @@ MicroSecondDelay ( return MicroSeconds;
}
-
/**
Stalls the CPU for at least the given number of nanoseconds.
@@ -158,13 +154,13 @@ MicroSecondDelay ( UINTN
EFIAPI
NanoSecondDelay (
- IN UINTN NanoSeconds
+ IN UINTN NanoSeconds
)
{
UINTN MicroSeconds;
// Round up to 1us Tick Number
- MicroSeconds = NanoSeconds / 1000;
+ MicroSeconds = NanoSeconds / 1000;
MicroSeconds += ((NanoSeconds % 1000) == 0) ? 0 : 1;
MicroSecondDelay (MicroSeconds);
@@ -219,13 +215,13 @@ GetPerformanceCounter ( UINT64
EFIAPI
GetPerformanceCounterProperties (
- OUT UINT64 *StartValue OPTIONAL,
- OUT UINT64 *EndValue OPTIONAL
+ OUT UINT64 *StartValue OPTIONAL,
+ OUT UINT64 *EndValue OPTIONAL
)
{
if (StartValue != NULL) {
// Timer starts at 0
- *StartValue = (UINT64)0ULL ;
+ *StartValue = (UINT64)0ULL;
}
if (EndValue != NULL) {
@@ -250,7 +246,7 @@ GetPerformanceCounterProperties ( UINT64
EFIAPI
GetTimeInNanoSecond (
- IN UINT64 Ticks
+ IN UINT64 Ticks
)
{
UINT64 NanoSeconds;
@@ -267,7 +263,8 @@ GetTimeInNanoSecond ( DivU64x32Remainder (
Ticks,
TimerFreq,
- &Remainder),
+ &Remainder
+ ),
1000000000U
);
@@ -277,8 +274,9 @@ GetTimeInNanoSecond ( //
NanoSeconds += DivU64x32 (
MULT_U64_X_N (
- (UINT64) Remainder,
- 1000000000U),
+ (UINT64)Remainder,
+ 1000000000U
+ ),
TimerFreq
);
|