Import hyra expt

1 files changed, 58 insertions, 0 deletions

diff --git a/sys/include/arch/amd64/intr.h b/sys/include/arch/amd64/intr.h
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+++ b/sys/include/arch/amd64/intr.h
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+/*
+ * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _MACHINE_INTR_H_
+#define _MACHINE_INTR_H_
+
+#include <sys/types.h>
+
+#define IST_SCHED   1U
+#define IST_HW_IRQ  2U
+#define IST_SW_INT  3U
+
+/* Upper 4 bits of interrupt vector */
+#define IPL_SHIFT 4
+
+/*
+ * Interrupt priority levels
+ */
+#define IPL_NONE    0   /* Don't defer anything */
+#define IPL_BIO     1   /* Block I/O */
+#define IPL_CLOCK   2   /* Clock */
+#define IPL_HIGH    3   /* Defer everything */
+
+struct intr_entry {
+    int priority;
+};
+
+int intr_alloc_vector(const char *name, uint8_t priority);
+void splraise(uint8_t s);
+void splx(uint8_t s);
+
+#endif