We need to loose some weight.

If someone feels very opposed to this, the code is left in the Attic.
Just revive and _make_it_work_.

1 files changed, 0 insertions, 500 deletions

diff --git a/sys/arch/arm32/mainbus/cpu.c b/sys/arch/arm32/mainbus/cpu.c
deleted file mode 100644
index b5b8551dbdd..00000000000
--- a/sys/arch/arm32/mainbus/cpu.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/* $NetBSD: cpu.c,v 1.4 1996/03/18 20:50:00 mark Exp $ */
-
-/*
- * Copyright (c) 1995 Mark Brinicombe.
- * Copyright (c) 1995 Brini.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by Brini.
- * 4. The name of the company nor the name of the author may be used to
- *    endorse or promote products derived from this software without specific
- *    prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * RiscBSD kernel project
- *
- * cpu.c
- *
- * Probing and configuration for the master cpu
- *
- * Created      : 10/10/95
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/conf.h>
-#include <sys/malloc.h>
-#include <sys/device.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-#include <vm/vm_kern.h>
-#include <machine/io.h>
-#include <machine/katelib.h>
-#include <machine/cpu.h>
-#include <machine/pte.h>
-#include <machine/undefined.h>
-#include <machine/cpus.h>
-
-#include "cpu.h"
-#if NCPU < 1
-#error Need at least 1 CPU configured
-#endif
-
-/* Array of cpu structures, one per possible cpu */
-
-cpu_t cpus[MAX_CPUS];
-
-char cpu_model[48];
-extern int cpu_ctrl;		/* Control bits for boot CPU */
-volatile int undefined_test;	/* Used for FPA test */
-
-extern char *boot_args;
-
-/* Declare prototypes */
-
-/* Prototypes */
-
-void identify_master_cpu __P((int /*cpu_number*/));
-void identify_arm_cpu	__P((int /*cpu_number*/));
-void identify_arm_fpu	__P((int /*cpu_number*/));
-char *strstr		__P((char */*s1*/, char */*s2*/));
-
-
-/*
- * int cpumatch(struct device *parent, void *match, void *aux)
- *
- * Probe for the main cpu. Currently all this does is return 1 to
- * indicate that the cpu was found.
- */ 
- 
-int
-cpumatch(parent, match, aux)
-	struct device *parent;
-	void *match;
-	void *aux;
-{
-	struct device *dev = match;
-
-	if (dev->dv_unit == 0)
-		return(1);
-	return(0);
-}
-
-
-/*
- * void cpusattach(struct device *parent, struct device *dev, void *aux)
- *
- * Attach the main cpu
- */
-  
-void
-cpuattach(parent, self, aux)
-	struct device *parent;
-	struct device *self;
-	void *aux;
-{
-	int loop;
-
-	for (loop = 0; loop < MAX_CPUS; ++loop)
-		bzero(&cpus[loop], sizeof(cpu_t));
-
-	identify_master_cpu(CPU_MASTER);
-}
-
-struct cfattach cpu_ca = {
-	sizeof(struct cpu_softc), cpumatch, cpuattach
-};
-
-struct cfdriver cpu_cd = {
-	NULL, "cpu", DV_DULL, 1
-};
-
-
-/*
- * Used to test for an FPA. The following function is installed as a coproc1 handler
- * on the undefined instruction vector and then we issue a FPA instruction.
- * If undefined_test is non zero then the FPA did not handle the instruction so
- * must be absent.
- */
-
-int
-fpa_test(address, instruction, frame)
-	u_int address;
-	u_int instruction;
-	trapframe_t *frame;
-{
-	++undefined_test;
-	return(0);
-}
-
-/*
- * If an FPA was found then this function is installed as the coproc1 handler
- * on the undefined instruction vector. Currently we don't support FPA's
- * so this just triggers an exception.
- */
-
-int
-fpa_handler(address, instruction, frame)
-	u_int address;
-	u_int instruction;
-	trapframe_t *frame;
-{
-	u_int fpsr;
-    
-	__asm __volatile("stmfd sp!, {r0}; .word 0xee300110; mov %0, r0; ldmfd sp!, {r0}" : "=r" (fpsr));
-
-	printf("FPA exception: fpsr = %08x\n", fpsr);
-
-	return(1);
-}
-
-
-/*
- * Identify the master (boot) CPU
- * This also probes for an FPU and will install an FPE if necessary
- */
- 
-void
-identify_master_cpu(cpu_number)
-	int cpu_number;
-{
-	u_int fpsr;
-
-	cpus[cpu_number].cpu_class = CPU_CLASS_ARM;
-	cpus[cpu_number].cpu_host = CPU_HOST_MAINBUS;
-	cpus[cpu_number].cpu_flags = CPU_FLAG_PRESENT;
-	cpus[cpu_number].cpu_ctrl = cpu_ctrl;
-
-/* Get the cpu ID from coprocessor 15 */
-
-	cpus[cpu_number].cpu_id = cpu_id();
-
-	identify_arm_cpu(cpu_number);
-	strcpy(cpu_model, cpus[cpu_number].cpu_model);
-
-/*
- * Ok now we test for an FPA
- * At this point no floating point emulator has been installed.
- * This means any FP instruction will cause undefined exception.
- * We install a temporay coproc 1 handler which will modify undefined_test
- * if it is called.
- * We then try to read the FP status register. If undefined_test has been
- * decremented then the instruction was not handled by an FPA so we know
- * the FPA is missing. If undefined_test is still 1 then we know the
- * instruction was handled by an FPA.
- * We then remove our test handler and look at the
- * FP status register for identification.
- */
- 
-	install_coproc_handler(FP_COPROC, fpa_test);
-
-	undefined_test = 0;
-
-	__asm __volatile("stmfd sp!, {r0}; .word 0xee300110; mov %0, r0; ldmfd sp!, {r0}" : "=r" (fpsr));
-
-	if (undefined_test == 0) {
-		cpus[cpu_number].fpu_type = (fpsr >> 24);
-	        switch (fpsr >> 24) {
-		case 0x81 :
-			cpus[cpu_number].fpu_class = FPU_CLASS_FPA;
-
-#if 0
-/* Experimental stuff used when playing with an ARM700+FPA11 */
-			printf("FPA11: FPSR=%08x\n", fpsr);
-			fpsr=0x00070400;
-			__asm __volatile("wfs %0" : "=r" (fpsr));
-			__asm __volatile("rfc %0" : "=r" (fpsr));
-			printf("FPA11: FPCR=%08x", fpsr);
-			__asm __volatile("stmfd sp!, {r0}; mov r0, #0x00000e00 ; wfc r0; ldmfd sp!, {r0}");
-			__asm __volatile("rfc %0" : "=r" (fpsr));
-			printf("FPA11: FPCR=%08x", fpsr);
-#endif
-			break;
-
-		default :
-			cpus[cpu_number].fpu_class = FPU_CLASS_FPU;
-			break;
-		}
-		cpus[cpu_number].fpu_flags = 0;
-		install_coproc_handler(FP_COPROC, fpa_handler);
-	} else {
-		cpus[cpu_number].fpu_class = FPU_CLASS_NONE;
-		cpus[cpu_number].fpu_flags = 0;
-
-/* Ok if ARMFPE is defined and the boot options request the ARM FPE then it will
- * be installed as the FPE. If the installation fails the existing FPE is used as
- * a fall back.
- * If either ARMFPE is not defined or the boot args did not request it the old FPE
- * is installed.
- * This is just while I work on integrating the new FPE.
- * It means the new FPE gets installed if compiled int (ARMFPE defined)
- * and also gives me a on/off option when I boot in case the new FPE is
- * causing panics.
- * In all cases it falls back on the existing FPE is the ARMFPE was not successfully
- * installed.
- */
-
-#ifdef ARMFPE
-        if (boot_args) {
-        	char *ptr;
-       
-		ptr = strstr(boot_args, "noarmfpe");
-		if (!ptr) {
-			if (initialise_arm_fpe(&cpus[cpu_number]) != 0) {
-				identify_arm_fpu(cpu_number);
-#ifdef FPE
-				initialise_fpe(&cpus[cpu_number]);
-#endif
-			}
-#ifdef FPE
-		} else
-			initialise_fpe(&cpus[cpu_number]);
-
-	} else
-		initialise_fpe(&cpus[cpu_number]);
-#else
-		}
-	}
-#endif
-
-#else
-#ifdef FPE
-		initialise_fpe(&cpus[cpu_number]);
-#else
-#error No FPE built in
-#endif
-#endif
-	}
-
-	identify_arm_fpu(cpu_number);
-}
-
-
-
-/*
- * Report the type of the specifed arm processor. This uses the generic and arm specific
- * information in the cpu structure to identify the processor. The remaining fields
- * in the cpu structure are filled in appropriately.
- */
-
-void
-identify_arm_cpu(cpu_number)
-	int cpu_number;
-{
-	cpu_t *cpu;
-	u_int cpuid;
-
-	cpu = &cpus[cpu_number];
-	if (cpu->cpu_host == CPU_HOST_NONE || cpu->cpu_class == CPU_CLASS_NONE) {
-		printf("No installed processor\n");
-		return;
-	}
-	if (cpu->cpu_class != CPU_CLASS_ARM) {
-		printf("identify_arm_cpu: Can only identify ARM CPU's\n");
-		return;
-	}
-	cpuid = cpu->cpu_id;
-
-	if (cpuid == 0) {
-		printf("Processor failed probe - no CPU ID\n");
-		return;
-	}
-
-	if ((cpuid & CPU_ID_DESIGNER_MASK) != CPU_ID_ARM_LTD)
-		printf("Unrecognised designer ID = %08x\n", cpuid);
-
-	switch (cpuid & CPU_ID_CPU_MASK) {
-        case ID_ARM610:
-        	cpu->cpu_type = cpuid & CPU_ID_CPU_MASK;
-		break;
-          
-	case ID_ARM710 :
-	case ID_ARM700 :
-		cpu->cpu_type = (cpuid & CPU_ID_CPU_MASK) >> 4;
-		break;
-
-	default :
-		printf("Unrecognised processor ID = %08x\n", cpuid);
-		cpu->cpu_type = cpuid & CPU_ID_CPU_MASK;
-		break;
-	}
-
-	sprintf(cpu->cpu_model, "ARM%x rev %d", cpu->cpu_type, cpuid & CPU_ID_REVISION_MASK);
-
-	if ((cpu->cpu_ctrl & CPU_CONTROL_IDC_ENABLE) == 0)
-		strcat(cpu->cpu_model, " IDC disabled");
-	else
-		strcat(cpu->cpu_model, " IDC enabled");
-
-	if ((cpu->cpu_ctrl & CPU_CONTROL_WBUF_ENABLE) == 0)
-		strcat(cpu->cpu_model, " WB disabled");
-	else
-		strcat(cpu->cpu_model, " WB enabled");
-
-	if (cpu->cpu_ctrl & CPU_CONTROL_LABT_ENABLE)
-		strcat(cpu->cpu_model, " LABT");
-	else
-		strcat(cpu->cpu_model, " EABT");
-
-/* Print the info */
-
-	printf(": %s\n", cpu->cpu_model);
-}
-
-
-/*
- * Report the type of the specifed arm fpu. This uses the generic and arm specific
- * information in the cpu structure to identify the fpu. The remaining fields
- * in the cpu structure are filled in appropriately.
- */
-
-void
-identify_arm_fpu(cpu_number)
-	int cpu_number;
-{
-	cpu_t *cpu;
-
-	cpu = &cpus[cpu_number];
-	if (cpu->cpu_host == CPU_HOST_NONE || cpu->cpu_class == CPU_CLASS_NONE) {
-		printf("No installed processor\n");
-		return;
-	}
-
-	if (cpu->cpu_class != CPU_CLASS_ARM) {
-		printf("identify_arm_cpu: Can only identify ARM FPU's\n");
-		return;
-	}
-
-/* Now for the FP info */
-
-	switch (cpu->fpu_class) {
-	case FPU_CLASS_NONE :
-		strcpy(cpu->fpu_model, "None");
-		break;
-	case FPU_CLASS_FPE :
-		printf("fpe%d at cpu%d: %s\n", cpu_number, cpu_number, cpu->fpu_model);
-		printf("fpe%d: no hardware found\n", cpu_number);
-		break;
-	case FPU_CLASS_FPA :
-		printf("fpe%d at cpu%d: %s\n", cpu_number, cpu_number, cpu->fpu_model);
-		if (cpu->fpu_type == FPU_TYPE_FPA11) {
-			strcpy(cpu->fpu_model, "FPA11");
-			printf("fpe%d: fpa11 found\n", cpu_number);
-		} else {
-			strcpy(cpu->fpu_model, "FPA");
-			printf("fpe%d: fpa10 found\n", cpu_number);
-		}
-		if ((cpu->fpu_flags & 4) == 0)
-			strcat(cpu->fpu_model, "");
-		else
-			strcat(cpu->fpu_model, " clk/2");
-		break;
-	case FPU_CLASS_FPU :
-		sprintf(cpu->fpu_model, "Unknown FPU (ID=%02x)\n", cpu->fpu_type);
-		printf("fpu%d at cpu%d: %s\n", cpu_number, cpu_number, cpu->fpu_model);
-		break;
-	}
-}
-
-
-int
-cpuopen(dev, flag, mode, p)
-	dev_t dev;
-	int flag;
-	int mode;
-	struct proc *p;
-{
-	struct cpu_softc *sc;
-	int unit;
-	int s;
-    
-    	unit = minor(dev);
-	if (unit >= cpu_cd.cd_ndevs)
-		return(ENXIO);
-
-	sc = cpu_cd.cd_devs[unit];
-	if (!sc) return(ENXIO);
-
-	s = splhigh();
-	if (sc->sc_open) {
-		(void)splx(s);
-		return(EBUSY);
-	}
-
-	++sc->sc_open;   
-	(void)splx(s);
-
-	return(0);
-}
-
-
-int
-cpuclose(dev, flag, mode, p)
-	dev_t dev;
-	int flag;
-	int mode;
-	struct proc *p;
-{
-	struct cpu_softc *sc;
-	int unit;
-	int s;
-
-	unit = minor(dev);
-	sc = cpu_cd.cd_devs[unit];
-
-	if (sc->sc_open == 0) return(ENXIO);
-    
-	s = splhigh();
-	--sc->sc_open;
-	(void)splx(s);
-      
-	return(0);
-}
-
-
-int
-cpuioctl(dev, cmd, data, flag, p)
-	dev_t dev;
-	int cmd;
-	caddr_t data;
-	int flag;
-	struct proc *p;
-{
-	struct cpu_softc *sc;
-	int unit;
-
-	unit = minor(dev);
-	sc = cpu_cd.cd_devs[unit];
-
-	switch (cmd) {
-	default:
-		return(ENXIO);
-		break;
-	}   
-
-	return(0);
-}
-
-/* End of cpu.c */