Author: ros-arm-bringup Date: Wed Jun 11 19:40:53 2008 New Revision: 33937

URL: http://svn.reactos.org/svn/reactos?rev=33937&view=rev Log: - We now implement a super-basic (and probably broken) context switching mechanism. - We completely ignore setting the thread to the right scheduler state, and don't do any APC delivery checking, or any other work. - We now implement a basic KiThreadStartup, which behaves properly (we believe). Doesn't handle user-mode threads yet, though. - This gets us through PspSystemThreadStartup, and.. - We now reach Phase1InitializationDiscard! A major step has been reached, now it's time to cleanup what has been done until now and verify it to be correct. - Then we move on... the next two things will be 1) Hal Initialization (setting up the timer) and 2) Displaying the boot logo. - Graphics will require using the PL-110 LCD Controller.

Modified: trunk/reactos/include/ndk/arm/ketypes.h trunk/reactos/ntoskrnl/ex/init.c trunk/reactos/ntoskrnl/ke/arm/ctxswtch.s trunk/reactos/ntoskrnl/ke/arm/thrdini.c trunk/reactos/ntoskrnl/ke/arm/trapc.c

Modified: trunk/reactos/include/ndk/arm/ketypes.h URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/arm/ketypes.h?r... ============================================================================== --- trunk/reactos/include/ndk/arm/ketypes.h [iso-8859-1] (original) +++ trunk/reactos/include/ndk/arm/ketypes.h [iso-8859-1] Wed Jun 11 19:40:53 2008 @@ -101,11 +101,11 @@ ULONG R9; ULONG R10; ULONG R11; - ULONG R12; +// ULONG R12; // ULONG Sp; -// ULONG Psr; + ULONG Psr; ULONG Lr; - ULONG SwapReturn; +// ULONG SwapReturn; } KEXCEPTION_FRAME, *PKEXCEPTION_FRAME;

//

Modified: trunk/reactos/ntoskrnl/ex/init.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ex/init.c?rev=3393... ============================================================================== --- trunk/reactos/ntoskrnl/ex/init.c [iso-8859-1] (original) +++ trunk/reactos/ntoskrnl/ex/init.c [iso-8859-1] Wed Jun 11 19:40:53 2008 @@ -1265,6 +1265,12 @@ OBJECT_ATTRIBUTES ObjectAttributes; HANDLE KeyHandle, OptionHandle; PRTL_USER_PROCESS_PARAMETERS ProcessParameters = NULL; +#ifdef _ARM_ + DPRINT1("*** Phase 1 Initialization Thread\n"); + DPRINT1("Beginning consistency checks...\n"); + // CHECK STACKS, IRQLS, DISPATCHER AND MAKE SURE WE ARE GOOD TO GO! + while (TRUE); +#endif

/* Allocate the initialization buffer */ InitBuffer = ExAllocatePoolWithTag(NonPagedPool,

Modified: trunk/reactos/ntoskrnl/ke/arm/ctxswtch.s URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/arm/ctxswtch.s?... ============================================================================== --- trunk/reactos/ntoskrnl/ke/arm/ctxswtch.s [iso-8859-1] (original) +++ trunk/reactos/ntoskrnl/ke/arm/ctxswtch.s [iso-8859-1] Wed Jun 11 19:40:53 2008 @@ -21,6 +21,11 @@ // // Save volatile registers for the OLD thread // + sub sp, sp, #(4*8) + mrs ip, spsr_all + stmia sp, {ip, lr} + sub sp, sp, #(4*2) + stmia sp, {r4-r11}

// // Switch stacks @@ -32,19 +37,46 @@ // Call the C context switch code // bl KiSwapContextInternal - + // // Restore volatile registers for the NEW thread // + ldmia sp, {r4-r11} + add sp, sp, #(4*8) + ldmia sp, {ip, lr} + msr spsr_all, ip + add sp, sp, #(4*2)

// // Jump to saved restore address // + mov pc, lr + + ENTRY_END KiSwapContext + + NESTED_ENTRY KiThreadStartup + PROLOG_END KiThreadStartup

// - // FIXME: TODO + // FIXME: Make space on stack and clean it up? + // + + // + // Lower to APC_LEVEL + // + mov a1, #1 + bl KeLowerIrql + + // + // Set the start address and startup context + // + mov a1, r6 + mov a2, r5 + blx r7 + + // + // Oh noes, we are back! // b .

- ENTRY_END KiSwapContext - + ENTRY_END KiThreadStartup

Modified: trunk/reactos/ntoskrnl/ke/arm/thrdini.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/arm/thrdini.c?r... ============================================================================== --- trunk/reactos/ntoskrnl/ke/arm/thrdini.c [iso-8859-1] (original) +++ trunk/reactos/ntoskrnl/ke/arm/thrdini.c [iso-8859-1] Wed Jun 11 19:40:53 2008 @@ -30,15 +30,7 @@

VOID NTAPI -KiThreadStartup(IN PKSYSTEM_ROUTINE SystemRoutine, - IN PKSTART_ROUTINE StartRoutine, - IN PVOID StartContext, - IN BOOLEAN UserThread, - IN KTRAP_FRAME TrapFrame) -{ - UNIMPLEMENTED; - return; -} +KiThreadStartup(VOID);

VOID NTAPI @@ -112,7 +104,7 @@ // // Set the previous mode as kernel // - //Thread->PreviousMode = KernelMode; + Thread->PreviousMode = KernelMode;

// // Context switch frame to setup below @@ -123,7 +115,7 @@ // // Now setup the context switch frame // - CtxSwitchFrame->SwapReturn = (ULONG)KiThreadStartup; + CtxSwitchFrame->Lr = (ULONG)KiThreadStartup; CtxSwitchFrame->R11 = (ULONG)(ExceptionFrame ? ExceptionFrame : CtxSwitchFrame);

// @@ -138,4 +130,5 @@ // Save back the new value of the kernel stack // Thread->KernelStack = (PVOID)CtxSwitchFrame; + DPRINT1("NEW THREAD %p WITH EX FRAME AT: %p\n", Thread, Thread->KernelStack); }

Modified: trunk/reactos/ntoskrnl/ke/arm/trapc.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/arm/trapc.c?rev... ============================================================================== --- trunk/reactos/ntoskrnl/ke/arm/trapc.c [iso-8859-1] (original) +++ trunk/reactos/ntoskrnl/ke/arm/trapc.c [iso-8859-1] Wed Jun 11 19:40:53 2008 @@ -37,12 +37,34 @@ KiSwapContextInternal(IN PKTHREAD OldThread, IN PKTHREAD NewThread) { - // - // FIXME: TODO - // + PKEXCEPTION_FRAME ExFrame = NewThread->KernelStack; DPRINT1("Switching from: %p to %p\n", OldThread, NewThread); DPRINT1("Stacks: %p %p\n", OldThread->KernelStack, NewThread->KernelStack); - while (TRUE); + DPRINT1("Thread Registers:\n" + "R4: %lx\n" + "R5: %lx\n" + "R6: %lx\n" + "R7: %lx\n" + "R8: %lx\n" + "R9: %lx\n" + "R10: %lx\n" + "R11: %lx\n" + "Psr: %lx\n" + "Lr: %lx\n", + ExFrame->R4, + ExFrame->R5, + ExFrame->R6, + ExFrame->R7, + ExFrame->R8, + ExFrame->R9, + ExFrame->R10, + ExFrame->R11, + ExFrame->Psr, + ExFrame->Lr); + + // + // FIXME: Todo + // }

VOID