Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 322 insertions, 0 deletions

diff --git a/arch/riscv/kernel/asm-offsets.c b/arch/riscv/kernel/asm-offsets.c
new file mode 100644
index 000000000..6a92a2fe1
--- /dev/null
+++ b/arch/riscv/kernel/asm-offsets.c
@@ -0,0 +1,322 @@
+/*
+ * Copyright (C) 2012 Regents of the University of California
+ * Copyright (C) 2017 SiFive
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation, version 2.
+ *
+ *   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.
+ */
+
+#define GENERATING_ASM_OFFSETS
+
+#include <linux/kbuild.h>
+#include <linux/sched.h>
+#include <asm/thread_info.h>
+#include <asm/ptrace.h>
+
+void asm_offsets(void)
+{
+	OFFSET(TASK_THREAD_RA, task_struct, thread.ra);
+	OFFSET(TASK_THREAD_SP, task_struct, thread.sp);
+	OFFSET(TASK_THREAD_S0, task_struct, thread.s[0]);
+	OFFSET(TASK_THREAD_S1, task_struct, thread.s[1]);
+	OFFSET(TASK_THREAD_S2, task_struct, thread.s[2]);
+	OFFSET(TASK_THREAD_S3, task_struct, thread.s[3]);
+	OFFSET(TASK_THREAD_S4, task_struct, thread.s[4]);
+	OFFSET(TASK_THREAD_S5, task_struct, thread.s[5]);
+	OFFSET(TASK_THREAD_S6, task_struct, thread.s[6]);
+	OFFSET(TASK_THREAD_S7, task_struct, thread.s[7]);
+	OFFSET(TASK_THREAD_S8, task_struct, thread.s[8]);
+	OFFSET(TASK_THREAD_S9, task_struct, thread.s[9]);
+	OFFSET(TASK_THREAD_S10, task_struct, thread.s[10]);
+	OFFSET(TASK_THREAD_S11, task_struct, thread.s[11]);
+	OFFSET(TASK_THREAD_SP, task_struct, thread.sp);
+	OFFSET(TASK_STACK, task_struct, stack);
+	OFFSET(TASK_TI, task_struct, thread_info);
+	OFFSET(TASK_TI_FLAGS, task_struct, thread_info.flags);
+	OFFSET(TASK_TI_KERNEL_SP, task_struct, thread_info.kernel_sp);
+	OFFSET(TASK_TI_USER_SP, task_struct, thread_info.user_sp);
+	OFFSET(TASK_TI_CPU, task_struct, thread_info.cpu);
+
+	OFFSET(TASK_THREAD_F0,  task_struct, thread.fstate.f[0]);
+	OFFSET(TASK_THREAD_F1,  task_struct, thread.fstate.f[1]);
+	OFFSET(TASK_THREAD_F2,  task_struct, thread.fstate.f[2]);
+	OFFSET(TASK_THREAD_F3,  task_struct, thread.fstate.f[3]);
+	OFFSET(TASK_THREAD_F4,  task_struct, thread.fstate.f[4]);
+	OFFSET(TASK_THREAD_F5,  task_struct, thread.fstate.f[5]);
+	OFFSET(TASK_THREAD_F6,  task_struct, thread.fstate.f[6]);
+	OFFSET(TASK_THREAD_F7,  task_struct, thread.fstate.f[7]);
+	OFFSET(TASK_THREAD_F8,  task_struct, thread.fstate.f[8]);
+	OFFSET(TASK_THREAD_F9,  task_struct, thread.fstate.f[9]);
+	OFFSET(TASK_THREAD_F10, task_struct, thread.fstate.f[10]);
+	OFFSET(TASK_THREAD_F11, task_struct, thread.fstate.f[11]);
+	OFFSET(TASK_THREAD_F12, task_struct, thread.fstate.f[12]);
+	OFFSET(TASK_THREAD_F13, task_struct, thread.fstate.f[13]);
+	OFFSET(TASK_THREAD_F14, task_struct, thread.fstate.f[14]);
+	OFFSET(TASK_THREAD_F15, task_struct, thread.fstate.f[15]);
+	OFFSET(TASK_THREAD_F16, task_struct, thread.fstate.f[16]);
+	OFFSET(TASK_THREAD_F17, task_struct, thread.fstate.f[17]);
+	OFFSET(TASK_THREAD_F18, task_struct, thread.fstate.f[18]);
+	OFFSET(TASK_THREAD_F19, task_struct, thread.fstate.f[19]);
+	OFFSET(TASK_THREAD_F20, task_struct, thread.fstate.f[20]);
+	OFFSET(TASK_THREAD_F21, task_struct, thread.fstate.f[21]);
+	OFFSET(TASK_THREAD_F22, task_struct, thread.fstate.f[22]);
+	OFFSET(TASK_THREAD_F23, task_struct, thread.fstate.f[23]);
+	OFFSET(TASK_THREAD_F24, task_struct, thread.fstate.f[24]);
+	OFFSET(TASK_THREAD_F25, task_struct, thread.fstate.f[25]);
+	OFFSET(TASK_THREAD_F26, task_struct, thread.fstate.f[26]);
+	OFFSET(TASK_THREAD_F27, task_struct, thread.fstate.f[27]);
+	OFFSET(TASK_THREAD_F28, task_struct, thread.fstate.f[28]);
+	OFFSET(TASK_THREAD_F29, task_struct, thread.fstate.f[29]);
+	OFFSET(TASK_THREAD_F30, task_struct, thread.fstate.f[30]);
+	OFFSET(TASK_THREAD_F31, task_struct, thread.fstate.f[31]);
+	OFFSET(TASK_THREAD_FCSR, task_struct, thread.fstate.fcsr);
+
+	DEFINE(PT_SIZE, sizeof(struct pt_regs));
+	OFFSET(PT_SEPC, pt_regs, sepc);
+	OFFSET(PT_RA, pt_regs, ra);
+	OFFSET(PT_FP, pt_regs, s0);
+	OFFSET(PT_S0, pt_regs, s0);
+	OFFSET(PT_S1, pt_regs, s1);
+	OFFSET(PT_S2, pt_regs, s2);
+	OFFSET(PT_S3, pt_regs, s3);
+	OFFSET(PT_S4, pt_regs, s4);
+	OFFSET(PT_S5, pt_regs, s5);
+	OFFSET(PT_S6, pt_regs, s6);
+	OFFSET(PT_S7, pt_regs, s7);
+	OFFSET(PT_S8, pt_regs, s8);
+	OFFSET(PT_S9, pt_regs, s9);
+	OFFSET(PT_S10, pt_regs, s10);
+	OFFSET(PT_S11, pt_regs, s11);
+	OFFSET(PT_SP, pt_regs, sp);
+	OFFSET(PT_TP, pt_regs, tp);
+	OFFSET(PT_A0, pt_regs, a0);
+	OFFSET(PT_A1, pt_regs, a1);
+	OFFSET(PT_A2, pt_regs, a2);
+	OFFSET(PT_A3, pt_regs, a3);
+	OFFSET(PT_A4, pt_regs, a4);
+	OFFSET(PT_A5, pt_regs, a5);
+	OFFSET(PT_A6, pt_regs, a6);
+	OFFSET(PT_A7, pt_regs, a7);
+	OFFSET(PT_T0, pt_regs, t0);
+	OFFSET(PT_T1, pt_regs, t1);
+	OFFSET(PT_T2, pt_regs, t2);
+	OFFSET(PT_T3, pt_regs, t3);
+	OFFSET(PT_T4, pt_regs, t4);
+	OFFSET(PT_T5, pt_regs, t5);
+	OFFSET(PT_T6, pt_regs, t6);
+	OFFSET(PT_GP, pt_regs, gp);
+	OFFSET(PT_ORIG_A0, pt_regs, orig_a0);
+	OFFSET(PT_SSTATUS, pt_regs, sstatus);
+	OFFSET(PT_SBADADDR, pt_regs, sbadaddr);
+	OFFSET(PT_SCAUSE, pt_regs, scause);
+
+	/*
+	 * THREAD_{F,X}* might be larger than a S-type offset can handle, but
+	 * these are used in performance-sensitive assembly so we can't resort
+	 * to loading the long immediate every time.
+	 */
+	DEFINE(TASK_THREAD_RA_RA,
+		  offsetof(struct task_struct, thread.ra)
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_SP_RA,
+		  offsetof(struct task_struct, thread.sp)
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S0_RA,
+		  offsetof(struct task_struct, thread.s[0])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S1_RA,
+		  offsetof(struct task_struct, thread.s[1])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S2_RA,
+		  offsetof(struct task_struct, thread.s[2])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S3_RA,
+		  offsetof(struct task_struct, thread.s[3])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S4_RA,
+		  offsetof(struct task_struct, thread.s[4])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S5_RA,
+		  offsetof(struct task_struct, thread.s[5])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S6_RA,
+		  offsetof(struct task_struct, thread.s[6])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S7_RA,
+		  offsetof(struct task_struct, thread.s[7])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S8_RA,
+		  offsetof(struct task_struct, thread.s[8])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S9_RA,
+		  offsetof(struct task_struct, thread.s[9])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S10_RA,
+		  offsetof(struct task_struct, thread.s[10])
+		- offsetof(struct task_struct, thread.ra)
+	);
+	DEFINE(TASK_THREAD_S11_RA,
+		  offsetof(struct task_struct, thread.s[11])
+		- offsetof(struct task_struct, thread.ra)
+	);
+
+	DEFINE(TASK_THREAD_F0_F0,
+		  offsetof(struct task_struct, thread.fstate.f[0])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F1_F0,
+		  offsetof(struct task_struct, thread.fstate.f[1])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F2_F0,
+		  offsetof(struct task_struct, thread.fstate.f[2])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F3_F0,
+		  offsetof(struct task_struct, thread.fstate.f[3])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F4_F0,
+		  offsetof(struct task_struct, thread.fstate.f[4])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F5_F0,
+		  offsetof(struct task_struct, thread.fstate.f[5])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F6_F0,
+		  offsetof(struct task_struct, thread.fstate.f[6])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F7_F0,
+		  offsetof(struct task_struct, thread.fstate.f[7])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F8_F0,
+		  offsetof(struct task_struct, thread.fstate.f[8])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F9_F0,
+		  offsetof(struct task_struct, thread.fstate.f[9])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F10_F0,
+		  offsetof(struct task_struct, thread.fstate.f[10])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F11_F0,
+		  offsetof(struct task_struct, thread.fstate.f[11])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F12_F0,
+		  offsetof(struct task_struct, thread.fstate.f[12])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F13_F0,
+		  offsetof(struct task_struct, thread.fstate.f[13])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F14_F0,
+		  offsetof(struct task_struct, thread.fstate.f[14])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F15_F0,
+		  offsetof(struct task_struct, thread.fstate.f[15])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F16_F0,
+		  offsetof(struct task_struct, thread.fstate.f[16])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F17_F0,
+		  offsetof(struct task_struct, thread.fstate.f[17])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F18_F0,
+		  offsetof(struct task_struct, thread.fstate.f[18])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F19_F0,
+		  offsetof(struct task_struct, thread.fstate.f[19])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F20_F0,
+		  offsetof(struct task_struct, thread.fstate.f[20])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F21_F0,
+		  offsetof(struct task_struct, thread.fstate.f[21])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F22_F0,
+		  offsetof(struct task_struct, thread.fstate.f[22])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F23_F0,
+		  offsetof(struct task_struct, thread.fstate.f[23])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F24_F0,
+		  offsetof(struct task_struct, thread.fstate.f[24])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F25_F0,
+		  offsetof(struct task_struct, thread.fstate.f[25])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F26_F0,
+		  offsetof(struct task_struct, thread.fstate.f[26])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F27_F0,
+		  offsetof(struct task_struct, thread.fstate.f[27])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F28_F0,
+		  offsetof(struct task_struct, thread.fstate.f[28])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F29_F0,
+		  offsetof(struct task_struct, thread.fstate.f[29])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F30_F0,
+		  offsetof(struct task_struct, thread.fstate.f[30])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_F31_F0,
+		  offsetof(struct task_struct, thread.fstate.f[31])
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+	DEFINE(TASK_THREAD_FCSR_F0,
+		  offsetof(struct task_struct, thread.fstate.fcsr)
+		- offsetof(struct task_struct, thread.fstate.f[0])
+	);
+
+	/* The assembler needs access to THREAD_SIZE as well. */
+	DEFINE(ASM_THREAD_SIZE, THREAD_SIZE);
+
+	/*
+	 * We allocate a pt_regs on the stack when entering the kernel.  This
+	 * ensures the alignment is sane.
+	 */
+	DEFINE(PT_SIZE_ON_STACK, ALIGN(sizeof(struct pt_regs), STACK_ALIGN));
+}