/* SPDX-License-Identifier: GPL-2.0 */ /* * File: mca_asm.h * Purpose: Machine check handling specific defines * * Copyright (C) 1999 Silicon Graphics, Inc. * Copyright (C) Vijay Chander <vijay@engr.sgi.com> * Copyright (C) Srinivasa Thirumalachar <sprasad@engr.sgi.com> * Copyright (C) 2000 Hewlett-Packard Co. * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com> * Copyright (C) 2002 Intel Corp. * Copyright (C) 2002 Jenna Hall <jenna.s.hall@intel.com> * Copyright (C) 2005 Silicon Graphics, Inc * Copyright (C) 2005 Keith Owens <kaos@sgi.com> */ #ifndef _ASM_IA64_MCA_ASM_H #define _ASM_IA64_MCA_ASM_H #include <asm/percpu.h> #define PSR_IC 13 #define PSR_I 14 #define PSR_DT 17 #define PSR_RT 27 #define PSR_MC 35 #define PSR_IT 36 #define PSR_BN 44 /* * This macro converts a instruction virtual address to a physical address * Right now for simulation purposes the virtual addresses are * direct mapped to physical addresses. * 1. Lop off bits 61 thru 63 in the virtual address */ #define INST_VA_TO_PA(addr) \ dep addr = 0, addr, 61, 3 /* * This macro converts a data virtual address to a physical address * Right now for simulation purposes the virtual addresses are * direct mapped to physical addresses. * 1. Lop off bits 61 thru 63 in the virtual address */ #define DATA_VA_TO_PA(addr) \ tpa addr = addr /* * This macro converts a data physical address to a virtual address * Right now for simulation purposes the virtual addresses are * direct mapped to physical addresses. * 1. Put 0x7 in bits 61 thru 63. */ #define DATA_PA_TO_VA(addr,temp) \ mov temp = 0x7 ;; \ dep addr = temp, addr, 61, 3 #define GET_THIS_PADDR(reg, var) \ mov reg = IA64_KR(PER_CPU_DATA);; \ addl reg = THIS_CPU(var), reg /* * This macro jumps to the instruction at the given virtual address * and starts execution in physical mode with all the address * translations turned off. * 1. Save the current psr * 2. Make sure that all the upper 32 bits are off * * 3. Clear the interrupt enable and interrupt state collection bits * in the psr before updating the ipsr and iip. * * 4. Turn off the instruction, data and rse translation bits of the psr * and store the new value into ipsr * Also make sure that the interrupts are disabled. * Ensure that we are in little endian mode. * [psr.{rt, it, dt, i, be} = 0] * * 5. Get the physical address corresponding to the virtual address * of the next instruction bundle and put it in iip. * (Using magic numbers 24 and 40 in the deposint instruction since * the IA64_SDK code directly maps to lower 24bits as physical address * from a virtual address). * * 6. Do an rfi to move the values from ipsr to psr and iip to ip. */ #define PHYSICAL_MODE_ENTER(temp1, temp2, start_addr, old_psr) \ mov old_psr = psr; \ ;; \ dep old_psr = 0, old_psr, 32, 32; \ \ mov ar.rsc = 0 ; \ ;; \ srlz.d; \ mov temp2 = ar.bspstore; \ ;; \ DATA_VA_TO_PA(temp2); \ ;; \ mov temp1 = ar.rnat; \ ;; \ mov ar.bspstore = temp2; \ ;; \ mov ar.rnat = temp1; \ mov temp1 = psr; \ mov temp2 = psr; \ ;; \ \ dep temp2 = 0, temp2, PSR_IC, 2; \ ;; \ mov psr.l = temp2; \ ;; \ srlz.d; \ dep temp1 = 0, temp1, 32, 32; \ ;; \ dep temp1 = 0, temp1, PSR_IT, 1; \ ;; \ dep temp1 = 0, temp1, PSR_DT, 1; \ ;; \ dep temp1 = 0, temp1, PSR_RT, 1; \ ;; \ dep temp1 = 0, temp1, PSR_I, 1; \ ;; \ dep temp1 = 0, temp1, PSR_IC, 1; \ ;; \ dep temp1 = -1, temp1, PSR_MC, 1; \ ;; \ mov cr.ipsr = temp1; \ ;; \ LOAD_PHYSICAL(p0, temp2, start_addr); \ ;; \ mov cr.iip = temp2; \ mov cr.ifs = r0; \ DATA_VA_TO_PA(sp); \ DATA_VA_TO_PA(gp); \ ;; \ srlz.i; \ ;; \ nop 1; \ nop 2; \ nop 1; \ nop 2; \ rfi; \ ;; /* * This macro jumps to the instruction at the given virtual address * and starts execution in virtual mode with all the address * translations turned on. * 1. Get the old saved psr * * 2. Clear the interrupt state collection bit in the current psr. * * 3. Set the instruction translation bit back in the old psr * Note we have to do this since we are right now saving only the * lower 32-bits of old psr.(Also the old psr has the data and * rse translation bits on) * * 4. Set ipsr to this old_psr with "it" bit set and "bn" = 1. * * 5. Reset the current thread pointer (r13). * * 6. Set iip to the virtual address of the next instruction bundle. * * 7. Do an rfi to move ipsr to psr and iip to ip. */ #define VIRTUAL_MODE_ENTER(temp1, temp2, start_addr, old_psr) \ mov temp2 = psr; \ ;; \ mov old_psr = temp2; \ ;; \ dep temp2 = 0, temp2, PSR_IC, 2; \ ;; \ mov psr.l = temp2; \ mov ar.rsc = 0; \ ;; \ srlz.d; \ mov r13 = ar.k6; \ mov temp2 = ar.bspstore; \ ;; \ DATA_PA_TO_VA(temp2,temp1); \ ;; \ mov temp1 = ar.rnat; \ ;; \ mov ar.bspstore = temp2; \ ;; \ mov ar.rnat = temp1; \ ;; \ mov temp1 = old_psr; \ ;; \ mov temp2 = 1; \ ;; \ dep temp1 = temp2, temp1, PSR_IC, 1; \ ;; \ dep temp1 = temp2, temp1, PSR_IT, 1; \ ;; \ dep temp1 = temp2, temp1, PSR_DT, 1; \ ;; \ dep temp1 = temp2, temp1, PSR_RT, 1; \ ;; \ dep temp1 = temp2, temp1, PSR_BN, 1; \ ;; \ \ mov cr.ipsr = temp1; \ movl temp2 = start_addr; \ ;; \ mov cr.iip = temp2; \ movl gp = __gp \ ;; \ DATA_PA_TO_VA(sp, temp1); \ srlz.i; \ ;; \ nop 1; \ nop 2; \ nop 1; \ rfi \ ;; /* * The MCA and INIT stacks in struct ia64_mca_cpu look like normal kernel * stacks, except that the SAL/OS state and a switch_stack are stored near the * top of the MCA/INIT stack. To support concurrent entry to MCA or INIT, as * well as MCA over INIT, each event needs its own SAL/OS state. All entries * are 16 byte aligned. * * +---------------------------+ * | pt_regs | * +---------------------------+ * | switch_stack | * +---------------------------+ * | SAL/OS state | * +---------------------------+ * | 16 byte scratch area | * +---------------------------+ <-------- SP at start of C MCA handler * | ..... | * +---------------------------+ * | RBS for MCA/INIT handler | * +---------------------------+ * | struct task for MCA/INIT | * +---------------------------+ <-------- Bottom of MCA/INIT stack */ #define ALIGN16(x) ((x)&~15) #define MCA_PT_REGS_OFFSET ALIGN16(KERNEL_STACK_SIZE-IA64_PT_REGS_SIZE) #define MCA_SWITCH_STACK_OFFSET ALIGN16(MCA_PT_REGS_OFFSET-IA64_SWITCH_STACK_SIZE) #define MCA_SOS_OFFSET ALIGN16(MCA_SWITCH_STACK_OFFSET-IA64_SAL_OS_STATE_SIZE) #define MCA_SP_OFFSET ALIGN16(MCA_SOS_OFFSET-16) #endif /* _ASM_IA64_MCA_ASM_H */
Name | Type | Size | Permission | Actions |
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native | Folder | 0755 |
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sn | Folder | 0755 |
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uv | Folder | 0755 |
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Kbuild | File | 224 B | 0644 |
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acenv.h | File | 1.27 KB | 0644 |
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acpi-ext.h | File | 590 B | 0644 |
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acpi.h | File | 4.1 KB | 0644 |
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agp.h | File | 857 B | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 890 B | 0644 |
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asmmacro.h | File | 3.29 KB | 0644 |
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atomic.h | File | 9.47 KB | 0644 |
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barrier.h | File | 2.36 KB | 0644 |
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bitops.h | File | 10.84 KB | 0644 |
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bug.h | File | 404 B | 0644 |
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bugs.h | File | 436 B | 0644 |
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cache.h | File | 771 B | 0644 |
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cacheflush.h | File | 1.71 KB | 0644 |
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checksum.h | File | 2.1 KB | 0644 |
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clocksource.h | File | 276 B | 0644 |
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cpu.h | File | 456 B | 0644 |
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cputime.h | File | 855 B | 0644 |
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current.h | File | 418 B | 0644 |
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cyclone.h | File | 442 B | 0644 |
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delay.h | File | 1.7 KB | 0644 |
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device.h | File | 323 B | 0644 |
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div64.h | File | 31 B | 0644 |
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dma-mapping.h | File | 1.17 KB | 0644 |
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dma.h | File | 466 B | 0644 |
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dmi.h | File | 343 B | 0644 |
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early_ioremap.h | File | 428 B | 0644 |
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elf.h | File | 9.83 KB | 0644 |
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emergency-restart.h | File | 149 B | 0644 |
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esi.h | File | 887 B | 0644 |
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exception.h | File | 1.13 KB | 0644 |
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export.h | File | 115 B | 0644 |
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extable.h | File | 330 B | 0644 |
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fb.h | File | 569 B | 0644 |
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fpswa.h | File | 1.88 KB | 0644 |
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ftrace.h | File | 748 B | 0644 |
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futex.h | File | 2.56 KB | 0644 |
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gcc_intrin.h | File | 368 B | 0644 |
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hardirq.h | File | 564 B | 0644 |
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hpsim.h | File | 364 B | 0644 |
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hugetlb.h | File | 1.67 KB | 0644 |
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hw_irq.h | File | 6.33 KB | 0644 |
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idle.h | File | 200 B | 0644 |
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intrinsics.h | File | 306 B | 0644 |
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io.h | File | 11.77 KB | 0644 |
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iommu.h | File | 555 B | 0644 |
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iommu_table.h | File | 175 B | 0644 |
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iosapic.h | File | 3.16 KB | 0644 |
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irq.h | File | 1.02 KB | 0644 |
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irq_regs.h | File | 34 B | 0644 |
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irq_remapping.h | File | 142 B | 0644 |
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irqflags.h | File | 2.11 KB | 0644 |
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kdebug.h | File | 1.64 KB | 0644 |
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kexec.h | File | 1.57 KB | 0644 |
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kmap_types.h | File | 260 B | 0644 |
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kprobes.h | File | 3.82 KB | 0644 |
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kregs.h | File | 6.73 KB | 0644 |
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libata-portmap.h | File | 225 B | 0644 |
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linkage.h | File | 398 B | 0644 |
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local.h | File | 31 B | 0644 |
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local64.h | File | 33 B | 0644 |
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machvec.h | File | 12.1 KB | 0644 |
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machvec_dig.h | File | 449 B | 0644 |
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machvec_dig_vtd.h | File | 558 B | 0644 |
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machvec_hpsim.h | File | 544 B | 0644 |
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machvec_hpzx1.h | File | 544 B | 0644 |
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machvec_hpzx1_swiotlb.h | File | 632 B | 0644 |
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machvec_init.h | File | 1.33 KB | 0644 |
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machvec_sn2.h | File | 4.71 KB | 0644 |
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machvec_uv.h | File | 684 B | 0644 |
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mca.h | File | 5.91 KB | 0644 |
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mca_asm.h | File | 7.18 KB | 0644 |
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meminit.h | File | 2.24 KB | 0644 |
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mman.h | File | 432 B | 0644 |
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mmu.h | File | 374 B | 0644 |
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mmu_context.h | File | 5.29 KB | 0644 |
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mmzone.h | File | 1.1 KB | 0644 |
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module.h | File | 1.1 KB | 0644 |
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msidef.h | File | 1.4 KB | 0644 |
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nodedata.h | File | 1.85 KB | 0644 |
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numa.h | File | 2.18 KB | 0644 |
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page.h | File | 6.49 KB | 0644 |
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pal.h | File | 53.39 KB | 0644 |
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param.h | File | 439 B | 0644 |
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parport.h | File | 534 B | 0644 |
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patch.h | File | 1.19 KB | 0644 |
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pci.h | File | 2.83 KB | 0644 |
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percpu.h | File | 1.32 KB | 0644 |
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perfmon.h | File | 4.33 KB | 0644 |
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pgalloc.h | File | 2.84 KB | 0644 |
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pgtable.h | File | 20.92 KB | 0644 |
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processor.h | File | 17.98 KB | 0644 |
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ptrace.h | File | 5.2 KB | 0644 |
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rwsem.h | File | 3.82 KB | 0644 |
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sal.h | File | 26.51 KB | 0644 |
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sections.h | File | 1.35 KB | 0644 |
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segment.h | File | 162 B | 0644 |
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serial.h | File | 446 B | 0644 |
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shmparam.h | File | 445 B | 0644 |
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signal.h | File | 749 B | 0644 |
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smp.h | File | 3.21 KB | 0644 |
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sparsemem.h | File | 621 B | 0644 |
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spinlock.h | File | 6.92 KB | 0644 |
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spinlock_types.h | File | 475 B | 0644 |
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string.h | File | 659 B | 0644 |
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swiotlb.h | File | 344 B | 0644 |
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switch_to.h | File | 2.89 KB | 0644 |
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syscall.h | File | 2.06 KB | 0644 |
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termios.h | File | 1.88 KB | 0644 |
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thread_info.h | File | 4.66 KB | 0644 |
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timex.h | File | 1.47 KB | 0644 |
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tlb.h | File | 8.42 KB | 0644 |
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tlbflush.h | File | 2.33 KB | 0644 |
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topology.h | File | 1.58 KB | 0644 |
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types.h | File | 828 B | 0644 |
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uaccess.h | File | 9.86 KB | 0644 |
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unaligned.h | File | 337 B | 0644 |
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uncached.h | File | 463 B | 0644 |
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unistd.h | File | 1.45 KB | 0644 |
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unwind.h | File | 5.74 KB | 0644 |
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user.h | File | 2.25 KB | 0644 |
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ustack.h | File | 403 B | 0644 |
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vga.h | File | 657 B | 0644 |
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xor.h | File | 1.12 KB | 0644 |
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