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- Use the IDR in the PCR intead of a local picmask.
- Use ASM version of HalBeginSystemInterrupt. svn path=/trunk/; revision=23651
This commit is contained in:
Alex Ionescu
parent
23b6ae75fb
commit
f5f0688575
4 changed files with 16 additions and 61 deletions
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@ -70,7 +70,6 @@ _KiI8259MaskTable:
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.long 0xFFFFFFFB /* IRQL 30 */
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.long 0xFFFFFFFB /* IRQL 31 */
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#if 0
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HalpSysIntHandler:
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.rept 8
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.long GenericIRQ /* IRQ 0-7 */
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@ -83,7 +82,6 @@ HalpSysIntHandler:
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.rept 20
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.long GenericIRQ /* IRQ 16-35 */
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.endr
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#endif
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SoftIntByteTable:
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.byte PASSIVE_LEVEL /* IRR 0 */
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@ -202,7 +200,7 @@ _HalDisableSystemInterrupt@8:
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mov edx, 1
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shl edx, cl
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cli
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or [fs+KPCR_IDR], edx
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or [fs:KPCR_IDR], edx
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/* Get the current mask */
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xor eax, eax
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@ -292,18 +290,18 @@ Invalid:
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xor eax, eax
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ret 12
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.endfunc
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#endif
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.globl _HalBeginSystemInterrupt@12
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.func HalBeginSystemInterrupt@12
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_HalBeginSystemInterrupt@12:
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/* Convert to vector and call the handler */
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movzx ebx, byte ptr [esp+8]
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sub ebx, PRIMARY_VECTOR_BASE
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jmp HalpSysIntHandler[ebx*4]
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mov edx, [esp+8]
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sub edx, PRIMARY_VECTOR_BASE
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jmp HalpSysIntHandler[edx*4]
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IRQ15:
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/* This is IRQ 15, check if it's spurious */
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mov al, 0xB
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out 0xA0, al
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@ -318,7 +316,6 @@ IRQ15:
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ret 12
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IRQ7:
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/* This is IRQ 7, check if it's spurious */
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mov al, 0xB
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out 0x20, al
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@ -331,10 +328,9 @@ IRQ7:
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ret 12
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GenericIRQ:
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/* Return the current IRQL */
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mov eax, [esp+12]
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movzx ecx, word ptr [fs:KPCR_IRQL]
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movzx ecx, byte ptr [fs:KPCR_IRQL]
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mov [eax], cl
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/* Set the new IRQL */
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@ -349,7 +345,7 @@ GenericIRQ:
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out 0xA1, al
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/* Check to which PIC the EOI was sent */
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mov eax, ebx
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mov eax, edx
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cmp eax, 8
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jnb Pic1
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@ -366,7 +362,6 @@ Pic1:
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out 0x20, al
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DoneBegin:
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/* Enable interrupts and return TRUE */
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in al, 0x21
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sti
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@ -374,6 +369,7 @@ DoneBegin:
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ret 12
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.endfunc
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#if 0
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.globl _HalEndSystemInterrupt@8
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.func HalEndSystemInterrupt@8
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_HalEndSystemInterrupt@8:
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@ -12,6 +12,7 @@
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#include <hal.h>
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#define NDEBUG
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#include <debug.h>
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#include <ndk/asm.h>
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/* GLOBALS ******************************************************************/
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@ -26,8 +27,6 @@ UCHAR Table[8] =
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2, 2, 2, 2
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};
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ULONG pic_mask = {0xFFFFFFFA};
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static ULONG HalpPendingInterruptCount[NR_IRQS] = {0};
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#define DIRQL_TO_IRQ(x) (PROFILE_LEVEL - x)
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@ -52,7 +51,7 @@ VOID HalpEndSystemInterrupt(KIRQL Irql)
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Ki386SaveFlags(flags);
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Ki386DisableInterrupts();
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Mask = pic_mask | KiI8259MaskTable[Irql];
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Mask = KeGetPcr()->IDR | KiI8259MaskTable[Irql];
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WRITE_PORT_UCHAR((PUCHAR)0x21, (UCHAR)Mask);
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Mask >>= 8;
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WRITE_PORT_UCHAR((PUCHAR)0xa1, (UCHAR)Mask);
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@ -158,44 +157,6 @@ KfLowerIrql (KIRQL NewIrql)
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HalpLowerIrql(NewIrql);
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}
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BOOLEAN STDCALL
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HalBeginSystemInterrupt (KIRQL Irql,
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ULONG Vector,
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PKIRQL OldIrql)
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{
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ULONG irq;
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ULONG Mask;
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if (Vector < IRQ_BASE || Vector >= IRQ_BASE + NR_IRQS)
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{
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return(FALSE);
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}
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irq = Vector - IRQ_BASE;
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Mask = pic_mask | KiI8259MaskTable[Irql];
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WRITE_PORT_UCHAR((PUCHAR)0x21, (UCHAR)Mask);
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Mask >>= 8;
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WRITE_PORT_UCHAR((PUCHAR)0xa1, (UCHAR)Mask);
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if (irq < 8)
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{
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WRITE_PORT_UCHAR((PUCHAR)0x20, 0x60 | irq);
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}
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else
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{
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/* Send EOI to the PICs */
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WRITE_PORT_UCHAR((PUCHAR)0x20,0x62);
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WRITE_PORT_UCHAR((PUCHAR)0xa0,0x20);
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}
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*OldIrql = KeGetPcr()->Irql;
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KeGetPcr()->Irql = Irql;
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return(TRUE);
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}
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VOID STDCALL HalEndSystemInterrupt (KIRQL Irql, ULONG Unknown2)
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/*
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* FUNCTION: Finish a system interrupt and restore the specified irq level.
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@ -220,9 +181,9 @@ HalEnableSystemInterrupt(
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return FALSE;
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irq = Vector - IRQ_BASE;
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pic_mask &= ~(1 << irq);
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KeGetPcr()->IDR &= ~(1 << irq);
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Mask = pic_mask | KiI8259MaskTable[KeGetPcr()->Irql];
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Mask = KeGetPcr()->IDR | KiI8259MaskTable[KeGetPcr()->Irql];
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WRITE_PORT_UCHAR((PUCHAR)0x21, (UCHAR)Mask);
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Mask >>= 8;
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WRITE_PORT_UCHAR((PUCHAR)0xa1, (UCHAR)Mask);
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@ -21,6 +21,8 @@ VOID
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HalpInitPhase0(PROS_LOADER_PARAMETER_BLOCK LoaderBlock)
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{
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HalpInitPICs();
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/* FIXME: Big-ass hack. First, should be 0xFFFFFFFF, second, shouldnt' be done here */
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KeGetPcr()->IDR = 0xFFFFFFFA;
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/* Setup busy waiting */
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HalpCalibrateStallExecution();
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@ -431,20 +431,16 @@ Author:
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#define MACHINE_TYPE_EISA 0x0001
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#define MACHINE_TYPE_MCA 0x0002
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//
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// Vector base
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// ROS HACK HACK HACK
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//
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#define PRIMARY_VECTOR_BASE 0x40
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//
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// Kernel Feature Bits
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//
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#define KF_RDTSC 0x00000002
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#endif
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//
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// Generic Definitions
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//
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#define PRIMARY_VECTOR_BASE 0x40 // FIXME: HACK
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#define MAXIMUM_IDTVECTOR 0xFF
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#endif // !_ASM_H
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