![Andy Gross](/assets/img/avatar_default.png)
This patch adds a quirk parameter to the arm_smccc_(smc/hvc) calls. The quirk structure allows for specialized SMC operations due to SoC specific requirements. The current arm_smccc_(smc/hvc) is renamed and macros are used instead to specify the standard arm_smccc_(smc/hvc) or the arm_smccc_(smc/hvc)_quirk function. This patch and partial implementation was suggested by Will Deacon. Signed-off-by: Andy Gross <andy.gross@linaro.org> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
158 lines
7.1 KiB
C
158 lines
7.1 KiB
C
/*
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* Based on arch/arm/kernel/asm-offsets.c
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*
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* Copyright (C) 1995-2003 Russell King
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* 2001-2002 Keith Owens
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* Copyright (C) 2012 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>
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#include <linux/kvm_host.h>
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#include <linux/suspend.h>
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#include <asm/cpufeature.h>
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#include <asm/thread_info.h>
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#include <asm/memory.h>
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#include <asm/smp_plat.h>
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#include <asm/suspend.h>
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#include <asm/vdso_datapage.h>
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#include <linux/kbuild.h>
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#include <linux/arm-smccc.h>
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int main(void)
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{
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DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
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BLANK();
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DEFINE(TSK_TI_FLAGS, offsetof(struct task_struct, thread_info.flags));
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DEFINE(TSK_TI_PREEMPT, offsetof(struct task_struct, thread_info.preempt_count));
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DEFINE(TSK_TI_ADDR_LIMIT, offsetof(struct task_struct, thread_info.addr_limit));
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#ifdef CONFIG_ARM64_SW_TTBR0_PAN
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DEFINE(TSK_TI_TTBR0, offsetof(struct task_struct, thread_info.ttbr0));
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#endif
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DEFINE(TSK_STACK, offsetof(struct task_struct, stack));
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BLANK();
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DEFINE(THREAD_CPU_CONTEXT, offsetof(struct task_struct, thread.cpu_context));
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BLANK();
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DEFINE(S_X0, offsetof(struct pt_regs, regs[0]));
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DEFINE(S_X1, offsetof(struct pt_regs, regs[1]));
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DEFINE(S_X2, offsetof(struct pt_regs, regs[2]));
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DEFINE(S_X3, offsetof(struct pt_regs, regs[3]));
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DEFINE(S_X4, offsetof(struct pt_regs, regs[4]));
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DEFINE(S_X5, offsetof(struct pt_regs, regs[5]));
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DEFINE(S_X6, offsetof(struct pt_regs, regs[6]));
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DEFINE(S_X7, offsetof(struct pt_regs, regs[7]));
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DEFINE(S_X8, offsetof(struct pt_regs, regs[8]));
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DEFINE(S_X10, offsetof(struct pt_regs, regs[10]));
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DEFINE(S_X12, offsetof(struct pt_regs, regs[12]));
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DEFINE(S_X14, offsetof(struct pt_regs, regs[14]));
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DEFINE(S_X16, offsetof(struct pt_regs, regs[16]));
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DEFINE(S_X18, offsetof(struct pt_regs, regs[18]));
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DEFINE(S_X20, offsetof(struct pt_regs, regs[20]));
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DEFINE(S_X22, offsetof(struct pt_regs, regs[22]));
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DEFINE(S_X24, offsetof(struct pt_regs, regs[24]));
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DEFINE(S_X26, offsetof(struct pt_regs, regs[26]));
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DEFINE(S_X28, offsetof(struct pt_regs, regs[28]));
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DEFINE(S_LR, offsetof(struct pt_regs, regs[30]));
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DEFINE(S_SP, offsetof(struct pt_regs, sp));
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#ifdef CONFIG_COMPAT
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DEFINE(S_COMPAT_SP, offsetof(struct pt_regs, compat_sp));
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#endif
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DEFINE(S_PSTATE, offsetof(struct pt_regs, pstate));
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DEFINE(S_PC, offsetof(struct pt_regs, pc));
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DEFINE(S_ORIG_X0, offsetof(struct pt_regs, orig_x0));
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DEFINE(S_SYSCALLNO, offsetof(struct pt_regs, syscallno));
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DEFINE(S_ORIG_ADDR_LIMIT, offsetof(struct pt_regs, orig_addr_limit));
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DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs));
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BLANK();
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DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id.counter));
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BLANK();
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DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
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DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
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BLANK();
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DEFINE(VM_EXEC, VM_EXEC);
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BLANK();
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DEFINE(PAGE_SZ, PAGE_SIZE);
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BLANK();
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DEFINE(DMA_BIDIRECTIONAL, DMA_BIDIRECTIONAL);
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DEFINE(DMA_TO_DEVICE, DMA_TO_DEVICE);
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DEFINE(DMA_FROM_DEVICE, DMA_FROM_DEVICE);
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BLANK();
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DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
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DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
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DEFINE(CLOCK_MONOTONIC_RAW, CLOCK_MONOTONIC_RAW);
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DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
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DEFINE(CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE);
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DEFINE(CLOCK_MONOTONIC_COARSE,CLOCK_MONOTONIC_COARSE);
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DEFINE(CLOCK_COARSE_RES, LOW_RES_NSEC);
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DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
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BLANK();
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DEFINE(VDSO_CS_CYCLE_LAST, offsetof(struct vdso_data, cs_cycle_last));
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DEFINE(VDSO_RAW_TIME_SEC, offsetof(struct vdso_data, raw_time_sec));
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DEFINE(VDSO_RAW_TIME_NSEC, offsetof(struct vdso_data, raw_time_nsec));
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DEFINE(VDSO_XTIME_CLK_SEC, offsetof(struct vdso_data, xtime_clock_sec));
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DEFINE(VDSO_XTIME_CLK_NSEC, offsetof(struct vdso_data, xtime_clock_nsec));
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DEFINE(VDSO_XTIME_CRS_SEC, offsetof(struct vdso_data, xtime_coarse_sec));
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DEFINE(VDSO_XTIME_CRS_NSEC, offsetof(struct vdso_data, xtime_coarse_nsec));
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DEFINE(VDSO_WTM_CLK_SEC, offsetof(struct vdso_data, wtm_clock_sec));
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DEFINE(VDSO_WTM_CLK_NSEC, offsetof(struct vdso_data, wtm_clock_nsec));
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DEFINE(VDSO_TB_SEQ_COUNT, offsetof(struct vdso_data, tb_seq_count));
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DEFINE(VDSO_CS_MONO_MULT, offsetof(struct vdso_data, cs_mono_mult));
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DEFINE(VDSO_CS_RAW_MULT, offsetof(struct vdso_data, cs_raw_mult));
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DEFINE(VDSO_CS_SHIFT, offsetof(struct vdso_data, cs_shift));
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DEFINE(VDSO_TZ_MINWEST, offsetof(struct vdso_data, tz_minuteswest));
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DEFINE(VDSO_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime));
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DEFINE(VDSO_USE_SYSCALL, offsetof(struct vdso_data, use_syscall));
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BLANK();
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DEFINE(TVAL_TV_SEC, offsetof(struct timeval, tv_sec));
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DEFINE(TVAL_TV_USEC, offsetof(struct timeval, tv_usec));
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DEFINE(TSPEC_TV_SEC, offsetof(struct timespec, tv_sec));
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DEFINE(TSPEC_TV_NSEC, offsetof(struct timespec, tv_nsec));
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BLANK();
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DEFINE(TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
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DEFINE(TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
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BLANK();
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DEFINE(CPU_BOOT_STACK, offsetof(struct secondary_data, stack));
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DEFINE(CPU_BOOT_TASK, offsetof(struct secondary_data, task));
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BLANK();
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#ifdef CONFIG_KVM_ARM_HOST
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DEFINE(VCPU_CONTEXT, offsetof(struct kvm_vcpu, arch.ctxt));
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DEFINE(CPU_GP_REGS, offsetof(struct kvm_cpu_context, gp_regs));
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DEFINE(CPU_USER_PT_REGS, offsetof(struct kvm_regs, regs));
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DEFINE(CPU_FP_REGS, offsetof(struct kvm_regs, fp_regs));
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DEFINE(VCPU_FPEXC32_EL2, offsetof(struct kvm_vcpu, arch.ctxt.sys_regs[FPEXC32_EL2]));
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DEFINE(VCPU_HOST_CONTEXT, offsetof(struct kvm_vcpu, arch.host_cpu_context));
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#endif
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#ifdef CONFIG_CPU_PM
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DEFINE(CPU_SUSPEND_SZ, sizeof(struct cpu_suspend_ctx));
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DEFINE(CPU_CTX_SP, offsetof(struct cpu_suspend_ctx, sp));
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DEFINE(MPIDR_HASH_MASK, offsetof(struct mpidr_hash, mask));
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DEFINE(MPIDR_HASH_SHIFTS, offsetof(struct mpidr_hash, shift_aff));
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DEFINE(SLEEP_STACK_DATA_SYSTEM_REGS, offsetof(struct sleep_stack_data, system_regs));
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DEFINE(SLEEP_STACK_DATA_CALLEE_REGS, offsetof(struct sleep_stack_data, callee_saved_regs));
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#endif
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DEFINE(ARM_SMCCC_RES_X0_OFFS, offsetof(struct arm_smccc_res, a0));
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DEFINE(ARM_SMCCC_RES_X2_OFFS, offsetof(struct arm_smccc_res, a2));
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DEFINE(ARM_SMCCC_QUIRK_ID_OFFS, offsetof(struct arm_smccc_quirk, id));
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DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS, offsetof(struct arm_smccc_quirk, state));
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BLANK();
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DEFINE(HIBERN_PBE_ORIG, offsetof(struct pbe, orig_address));
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DEFINE(HIBERN_PBE_ADDR, offsetof(struct pbe, address));
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DEFINE(HIBERN_PBE_NEXT, offsetof(struct pbe, next));
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DEFINE(ARM64_FTR_SYSVAL, offsetof(struct arm64_ftr_reg, sys_val));
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return 0;
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}
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