add license texts

31 files changed, 93 insertions, 0 deletions

diff --git a/arch/riscv64/conf/init-link.S b/arch/riscv64/conf/init-link.S
index baabcc6..ac7f858 100644
--- a/arch/riscv64/conf/init-link.S
+++ b/arch/riscv64/conf/init-link.S
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 OUTPUT_ARCH(riscv)
 ENTRY(_start)
 
diff --git a/arch/riscv64/conf/kernel-link.S b/arch/riscv64/conf/kernel-link.S
index c6a910a..5673a64 100644
--- a/arch/riscv64/conf/kernel-link.S
+++ b/arch/riscv64/conf/kernel-link.S
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 OUTPUT_ARCH(riscv)
 ENTRY(main)
 
diff --git a/arch/riscv64/conf/s.S b/arch/riscv64/conf/s.S
index 97c66ff..516dc39 100644
--- a/arch/riscv64/conf/s.S
+++ b/arch/riscv64/conf/s.S
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 .text
 .global _start
 _start:
diff --git a/arch/riscv64/config.h b/arch/riscv64/config.h
index e060555..0421341 100644
--- a/arch/riscv64/config.h
+++ b/arch/riscv64/config.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_CONFIG_H
 #define APOS_RISCV_CONFIG_H
 
diff --git a/arch/riscv64/gen/asm-offsets.c b/arch/riscv64/gen/asm-offsets.c
index 8c31561..8852d8f 100644
--- a/arch/riscv64/gen/asm-offsets.c
+++ b/arch/riscv64/gen/asm-offsets.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file asm-offsets.c
  * riscv64 file used to generate offsets to register slots in stack. Used by
diff --git a/arch/riscv64/include/arch.h b/arch/riscv64/include/arch.h
index 0930543..4d083e7 100644
--- a/arch/riscv64/include/arch.h
+++ b/arch/riscv64/include/arch.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_ARCH_H
 #define APOS_RISCV_ARCH_H
 /**
diff --git a/arch/riscv64/include/cpu.h b/arch/riscv64/include/cpu.h
index 5d496ea..73d3d15 100644
--- a/arch/riscv64/include/cpu.h
+++ b/arch/riscv64/include/cpu.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_CPU_H
 #define APOS_RISCV_CPU_H
 /**
diff --git a/arch/riscv64/include/irq.h b/arch/riscv64/include/irq.h
index 95ce62a..cba6b31 100644
--- a/arch/riscv64/include/irq.h
+++ b/arch/riscv64/include/irq.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_IRQ_H
 #define APOS_RISCV_IRQ_H
 /**
diff --git a/arch/riscv64/include/lock.h b/arch/riscv64/include/lock.h
index 15e5765..a85f72e 100644
--- a/arch/riscv64/include/lock.h
+++ b/arch/riscv64/include/lock.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_LOCK_H
 #define APOS_RISCV_LOCK_H
 /**
diff --git a/arch/riscv64/include/pmem.h b/arch/riscv64/include/pmem.h
index 56d22ca..1b1d55a 100644
--- a/arch/riscv64/include/pmem.h
+++ b/arch/riscv64/include/pmem.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_PMEM_H
 #define APOS_RISCV_PMEM_H
 /**
diff --git a/arch/riscv64/include/proc.h b/arch/riscv64/include/proc.h
index c0bf3af..8b531ce 100644
--- a/arch/riscv64/include/proc.h
+++ b/arch/riscv64/include/proc.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_PROC_H
 #define APOS_RISCV_PROC_H
 
diff --git a/arch/riscv64/include/tcb.h b/arch/riscv64/include/tcb.h
index 8cd32ed..ed2fd71 100644
--- a/arch/riscv64/include/tcb.h
+++ b/arch/riscv64/include/tcb.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef ARCH_RISCV_TCB_H
 #define ARCH_RISCV_TCB_H
 
diff --git a/arch/riscv64/include/timer.h b/arch/riscv64/include/timer.h
index 2e468ba..6299662 100644
--- a/arch/riscv64/include/timer.h
+++ b/arch/riscv64/include/timer.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_TIMER_H
 #define APOS_RISCV_TIMER_H
 /**
diff --git a/arch/riscv64/include/types.h b/arch/riscv64/include/types.h
index de7a85f..2a6dcb5 100644
--- a/arch/riscv64/include/types.h
+++ b/arch/riscv64/include/types.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_TYPES_H
 #define APOS_RISCV_TYPES_H
 
diff --git a/arch/riscv64/include/vmem.h b/arch/riscv64/include/vmem.h
index 46c12b1..9945051 100644
--- a/arch/riscv64/include/vmem.h
+++ b/arch/riscv64/include/vmem.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_VMAP_H
 #define APOS_RISCV_VMAP_H
 
diff --git a/arch/riscv64/init/init.c b/arch/riscv64/init/init.c
index 4b20614..2c71ea4 100644
--- a/arch/riscv64/init/init.c
+++ b/arch/riscv64/init/init.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file init.c
  * riscv64 'bootstrap', move actual kernel into place and jump to virtual
diff --git a/arch/riscv64/init/start.S b/arch/riscv64/init/start.S
index f5ed2fe..646a4af 100644
--- a/arch/riscv64/init/start.S
+++ b/arch/riscv64/init/start.S
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 .section .init.start
 .global _start
 /* Entry point to the kernel loader. */
diff --git a/arch/riscv64/kernel/cpu.c b/arch/riscv64/kernel/cpu.c
index 966dfec..38cf262 100644
--- a/arch/riscv64/kernel/cpu.c
+++ b/arch/riscv64/kernel/cpu.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file cpu.c
  * riscv64 implementation of cpu handling.
diff --git a/arch/riscv64/kernel/csr.h b/arch/riscv64/kernel/csr.h
index 0af2dbe..321af3d 100644
--- a/arch/riscv64/kernel/csr.h
+++ b/arch/riscv64/kernel/csr.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_CSR_H
 #define APOS_CSR_H
 
diff --git a/arch/riscv64/kernel/entry.S b/arch/riscv64/kernel/entry.S
index ee7b10f..9c7a54c 100644
--- a/arch/riscv64/kernel/entry.S
+++ b/arch/riscv64/kernel/entry.S
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #include "../kernel/gen/asm-offsets.h"
 #include "../kernel/csr.h"
 
diff --git a/arch/riscv64/kernel/irq.c b/arch/riscv64/kernel/irq.c
index 6fdfe85..a2913a4 100644
--- a/arch/riscv64/kernel/irq.c
+++ b/arch/riscv64/kernel/irq.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file irq.c
  * riscv64 implementation of irq handling.
diff --git a/arch/riscv64/kernel/main.c b/arch/riscv64/kernel/main.c
index 9b321ae..3d36a22 100644
--- a/arch/riscv64/kernel/main.c
+++ b/arch/riscv64/kernel/main.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file main.c
  * riscv64 main
diff --git a/arch/riscv64/kernel/pages.h b/arch/riscv64/kernel/pages.h
index 887baca..b26732e 100644
--- a/arch/riscv64/kernel/pages.h
+++ b/arch/riscv64/kernel/pages.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_PAGES_H
 #define APOS_RISCV_PAGES_H
 
diff --git a/arch/riscv64/kernel/pmem.c b/arch/riscv64/kernel/pmem.c
index 0657244..e438131 100644
--- a/arch/riscv64/kernel/pmem.c
+++ b/arch/riscv64/kernel/pmem.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file pmem.c
  * riscv64 implementation of arch-specific physical memory handling
diff --git a/arch/riscv64/kernel/power.c b/arch/riscv64/kernel/power.c
index b79b7ba..9ea94d6 100644
--- a/arch/riscv64/kernel/power.c
+++ b/arch/riscv64/kernel/power.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file power.c
  * riscv64 implementation of arch-specific power handling.
diff --git a/arch/riscv64/kernel/proc.c b/arch/riscv64/kernel/proc.c
index efbf7df..ab833b2 100644
--- a/arch/riscv64/kernel/proc.c
+++ b/arch/riscv64/kernel/proc.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file proc.c
  * riscv64 implementation of arch-specific process handling.
diff --git a/arch/riscv64/kernel/regs.h b/arch/riscv64/kernel/regs.h
index fafc84d..f674f69 100644
--- a/arch/riscv64/kernel/regs.h
+++ b/arch/riscv64/kernel/regs.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_REGS_H
 #define APOS_RISCV_REGS_H
 
diff --git a/arch/riscv64/kernel/sbi.c b/arch/riscv64/kernel/sbi.c
index 5602dd9..a11fab9 100644
--- a/arch/riscv64/kernel/sbi.c
+++ b/arch/riscv64/kernel/sbi.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file sbi.c
  * riscv64 specific OpenSBI handling.
diff --git a/arch/riscv64/kernel/sbi.h b/arch/riscv64/kernel/sbi.h
index 36497f1..2add35f 100644
--- a/arch/riscv64/kernel/sbi.h
+++ b/arch/riscv64/kernel/sbi.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 #ifndef APOS_RISCV_SBI_H
 #define APOS_RISCV_SBI_H
 
diff --git a/arch/riscv64/kernel/timer.c b/arch/riscv64/kernel/timer.c
index e529e55..015a230 100644
--- a/arch/riscv64/kernel/timer.c
+++ b/arch/riscv64/kernel/timer.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file timer.c
  * riscv64 implementation of arch-specific timers.
diff --git a/arch/riscv64/kernel/vmem.c b/arch/riscv64/kernel/vmem.c
index 1677103..381ef5c 100644
--- a/arch/riscv64/kernel/vmem.c
+++ b/arch/riscv64/kernel/vmem.c
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/* Copyright 2021 - 2022, Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
 /**
  * @file vmem.c
  * riscv64 implementation of arch-specific virtual memory handling.