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* XScale coprocessor support.

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2001-04-18  matthew green  <mrg@redhat.com>

	* armcopro.c (write_cp15_reg): Set CHANGEMODE if endianness changes.
	(read_cp15_reg): Make non-static.
	(XScale_cp15_LDC): Update for write_cp15_reg() change.
	(XScale_cp15_MCR): Likewise.
	(XScale_cp15_write_reg): Likewise.
	(XScale_check_memacc): New function. Check for breakpoints being
	activated by memory accesses.  Does not support the Branch Target
	Buffer.
	(XScale_set_fsr_far): New function. Set FSR and FAR for XScale.
	(XScale_debug_moe): New function. Set the debug Method Of Entry,
	if configured.
	(write_cp14_reg): Reset count counter if requested.
	* armdefs.h (struct ARMul_State): New members `LastTime' and
	`CP14R0_CCD' used for the timer/counters.
	(ARMul_CP13_R0_FIQ, ARMul_CP13_R0_IRQ, ARMul_CP13_R8_PMUS,
	ARMul_CP14_R0_ENABLE, ARMul_CP14_R0_CLKRST, ARMul_CP14_R0_CCD,
	ARMul_CP14_R0_INTEN0, ARMul_CP14_R0_INTEN1, ARMul_CP14_R0_INTEN2,
	ARMul_CP14_R0_FLAG0, ARMul_CP14_R0_FLAG1, ARMul_CP14_R0_FLAG2,
	ARMul_CP14_R10_MOE_IB, ARMul_CP14_R10_MOE_DB, ARMul_CP14_R10_MOE_BT,
	ARMul_CP15_R1_ENDIAN, ARMul_CP15_R1_ALIGN, ARMul_CP15_R5_X,
	ARMul_CP15_R5_ST_ALIGN, ARMul_CP15_R5_IMPRE, ARMul_CP15_R5_MMU_EXCPT,
	ARMul_CP15_DBCON_M, ARMul_CP15_DBCON_E1, ARMul_CP15_DBCON_E0): New
	defines for XScale registers.
	(XScale_check_memacc, XScale_set_fsr_far, XScale_debug_moe): Prototype.
	(ARMul_Emulate32, ARMul_Emulate26): Clean up function definition.
	(ARMul_Emulate32): Handle the clock counter and hardware instruction
	breakpoints.  Call XScale_set_fsr_far() for software breakpoints and
	software interrupts.
	(LoadMult): Call XScale_set_fsr_far() for data aborts.
	(LoadSMult): Likewise.
	(StoreMult): Likewise.
	(StoreSMult): Likewise.
	* armemu.h (write_cp15_reg): Update prototype.
	* arminit.c (ARMul_NewState): Initialise CP14R0_CCD and LastTime.
	(ARMul_Abort): If XScale, check for FIQ and IRQ being enabled in CP13
	register 0.
	* armvirt.c (GetWord): Call XScale_check_memacc().
	(PutWord): Likewise.
This commit is contained in:
Matthew Green
2001-04-18 16:39:37 +00:00
parent c9e030cfcd
commit c3ae2f98d0
6 changed files with 284 additions and 22 deletions
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4
sim/arm/armvirt.c
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@@ -64,6 +64,8 @@ GetWord (ARMul_State * state, ARMword address, int check)
ARMword **pagetable;
ARMword *pageptr;
XScale_check_memacc (state, &address, 0);
page = address >> PAGEBITS;
offset = (address & OFFSETBITS) >> 2;
pagetable = (ARMword **) state->MemDataPtr;
@@ -97,6 +99,8 @@ PutWord (ARMul_State * state, ARMword address, ARMword data, int check)
ARMword **pagetable;
ARMword *pageptr;
XScale_check_memacc (state, &address, 1);
page = address >> PAGEBITS;
offset = (address & OFFSETBITS) >> 2;
pagetable = (ARMword **) state->MemDataPtr;