AcpiExecSMPFunction: Difference between revisions

Revision as of 14:20, 14 June 2019

Execute a subprogram on all CPUs simultaneously.

ACPI_STATUS  AcpiExecSMPFunction (ACPIRUNATALLCPU SubProgram, UINT32 CPUMask, UINT32 Flags, void *Context)

SubProgram

Address subprogram, which called in each CPU according with CPUMask, must declare as ACPI_STATUS APIENTRY SubProgram(void *Context)

CPUMask

CPUs for execute, low word is bit field, where bit number is number of CPU for execute, 0xffffffff mean "all CPU"

Flags

Flag, can be:

SMPEXEC_IPITIME: run from IPI (interrupt time) , stack is NOT OS/2 stack
SMPEXEC_TASKTIME: run from PSD_SET_PROC_STATE, PSD stack, kernel time
SMPEXEC_WBINDVD: Flush cache at all CPU, parameter SubProgram ignore with this.
SMPEXEC_SYNC: synchronize CPU before run (now tested with SMPEXEC_TASKTIME )

Context: Context which passed as parameter to SubProgram
Note: In Uni kernel call imeditialy w/o any checking CPU number. Running in kernel time.

@@ Line 1: / Line 1: @@
-{{Legacy
-|RepFunc=[[ACPI32]]
-|Remarks=This function was used on a older release of the ACPI Toolkit, it is recommended to use an alternative. This function is here only for documentation.
-}}
 Execute a subprogram on all CPUs simultaneously.
@@ Line 9: / Line 5: @@
 ==Parameters==
 ; SubProgram : Address subprogram, which called in each CPU according with CPUMask, must declare as ACPI_STATUS APIENTRY SubProgram(void *Context)
 ; CPUMask : CPUs for execute, low word is bit field, where bit number is number of CPU for execute, 0xffffffff mean "all CPU"
 ; Flags: Flag, can be:
 :;SMPEXEC_IPITIME : run from IPI (interrupt time) , stack is NOT OS/2 stack
@@ Line 17: / Line 11: @@
 :;SMPEXEC_WBINDVD  : Flush cache at all CPU, parameter SubProgram ignore with this.
 :;SMPEXEC_SYNC : synchronize CPU before run (now tested with SMPEXEC_TASKTIME )
 ; Context : Context which passed as parameter to SubProgram
 ; Note: In Uni kernel call imeditialy w/o any checking CPU number. Running in kernel time.
 ==Links==
 * [http://www2.ecomstation.ru/doku.php/en:acpi ACPI Toolkit Web Site]
-[[Category:ACPI]]