arm64: Assembly macros and definitions
This patch introduces several assembly macros and definitions used in
the .S files across arch/arm64/ like IRQ disabling/enabling, together
with asm-offsets.c.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
new file mode 100644
index 0000000..a2a4d81
--- /dev/null
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -0,0 +1,108 @@
+/*
+ * Based on arch/arm/kernel/asm-offsets.c
+ *
+ * Copyright (C) 1995-2003 Russell King
+ * 2001-2002 Keith Owens
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/dma-mapping.h>
+#include <asm/thread_info.h>
+#include <asm/memory.h>
+#include <asm/cputable.h>
+#include <asm/vdso_datapage.h>
+#include <linux/kbuild.h>
+
+int main(void)
+{
+ DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
+ BLANK();
+ DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
+ DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
+ DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
+ DEFINE(TI_TASK, offsetof(struct thread_info, task));
+ DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
+ DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
+ BLANK();
+ DEFINE(THREAD_CPU_CONTEXT, offsetof(struct task_struct, thread.cpu_context));
+ BLANK();
+ DEFINE(S_X0, offsetof(struct pt_regs, regs[0]));
+ DEFINE(S_X1, offsetof(struct pt_regs, regs[1]));
+ DEFINE(S_X2, offsetof(struct pt_regs, regs[2]));
+ DEFINE(S_X3, offsetof(struct pt_regs, regs[3]));
+ DEFINE(S_X4, offsetof(struct pt_regs, regs[4]));
+ DEFINE(S_X5, offsetof(struct pt_regs, regs[5]));
+ DEFINE(S_X6, offsetof(struct pt_regs, regs[6]));
+ DEFINE(S_X7, offsetof(struct pt_regs, regs[7]));
+ DEFINE(S_LR, offsetof(struct pt_regs, regs[30]));
+ DEFINE(S_SP, offsetof(struct pt_regs, sp));
+#ifdef CONFIG_COMPAT
+ DEFINE(S_COMPAT_SP, offsetof(struct pt_regs, compat_sp));
+#endif
+ DEFINE(S_PSTATE, offsetof(struct pt_regs, pstate));
+ DEFINE(S_PC, offsetof(struct pt_regs, pc));
+ DEFINE(S_ORIG_X0, offsetof(struct pt_regs, orig_x0));
+ DEFINE(S_SYSCALLNO, offsetof(struct pt_regs, syscallno));
+ DEFINE(S_FRAME_SIZE, sizeof(struct pt_regs));
+ BLANK();
+ DEFINE(MM_CONTEXT_ID, offsetof(struct mm_struct, context.id));
+ BLANK();
+ DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
+ DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
+ BLANK();
+ DEFINE(VM_EXEC, VM_EXEC);
+ BLANK();
+ DEFINE(PAGE_SZ, PAGE_SIZE);
+ BLANK();
+ DEFINE(CPU_INFO_SZ, sizeof(struct cpu_info));
+ DEFINE(CPU_INFO_SETUP, offsetof(struct cpu_info, cpu_setup));
+ BLANK();
+ DEFINE(DMA_BIDIRECTIONAL, DMA_BIDIRECTIONAL);
+ DEFINE(DMA_TO_DEVICE, DMA_TO_DEVICE);
+ DEFINE(DMA_FROM_DEVICE, DMA_FROM_DEVICE);
+ BLANK();
+ DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
+ DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
+ DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
+ DEFINE(CLOCK_REALTIME_COARSE, CLOCK_REALTIME_COARSE);
+ DEFINE(CLOCK_MONOTONIC_COARSE,CLOCK_MONOTONIC_COARSE);
+ DEFINE(CLOCK_COARSE_RES, LOW_RES_NSEC);
+ DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
+ BLANK();
+ DEFINE(VDSO_CS_CYCLE_LAST, offsetof(struct vdso_data, cs_cycle_last));
+ DEFINE(VDSO_XTIME_CLK_SEC, offsetof(struct vdso_data, xtime_clock_sec));
+ DEFINE(VDSO_XTIME_CLK_NSEC, offsetof(struct vdso_data, xtime_clock_nsec));
+ DEFINE(VDSO_XTIME_CRS_SEC, offsetof(struct vdso_data, xtime_coarse_sec));
+ DEFINE(VDSO_XTIME_CRS_NSEC, offsetof(struct vdso_data, xtime_coarse_nsec));
+ DEFINE(VDSO_WTM_CLK_SEC, offsetof(struct vdso_data, wtm_clock_sec));
+ DEFINE(VDSO_WTM_CLK_NSEC, offsetof(struct vdso_data, wtm_clock_nsec));
+ DEFINE(VDSO_TB_SEQ_COUNT, offsetof(struct vdso_data, tb_seq_count));
+ DEFINE(VDSO_CS_MULT, offsetof(struct vdso_data, cs_mult));
+ DEFINE(VDSO_CS_SHIFT, offsetof(struct vdso_data, cs_shift));
+ DEFINE(VDSO_TZ_MINWEST, offsetof(struct vdso_data, tz_minuteswest));
+ DEFINE(VDSO_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime));
+ DEFINE(VDSO_USE_SYSCALL, offsetof(struct vdso_data, use_syscall));
+ BLANK();
+ DEFINE(TVAL_TV_SEC, offsetof(struct timeval, tv_sec));
+ DEFINE(TVAL_TV_USEC, offsetof(struct timeval, tv_usec));
+ DEFINE(TSPEC_TV_SEC, offsetof(struct timespec, tv_sec));
+ DEFINE(TSPEC_TV_NSEC, offsetof(struct timespec, tv_nsec));
+ BLANK();
+ DEFINE(TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
+ DEFINE(TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
+ return 0;
+}