Patchwork [08/24] S390: ccw firmware: Add glue header

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Submitter Alexander Graf
Date April 26, 2013, 6:19 p.m.
Message ID <1367000373-7972-9-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/240017/
State New
Headers show

Comments

Alexander Graf - April 26, 2013, 6:19 p.m.
Like all great programs, we have to call between different functions in
different object files. And all of them need a common ground of defines.

Provide a file that provides these defines.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 pc-bios/s390-ccw/s390-ccw.h |  131 +++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 131 insertions(+), 0 deletions(-)
 create mode 100644 pc-bios/s390-ccw/s390-ccw.h

Patch

diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h
new file mode 100644
index 0000000..a03dbaf
--- /dev/null
+++ b/pc-bios/s390-ccw/s390-ccw.h
@@ -0,0 +1,131 @@ 
+/*
+ * S390 CCW boot loader
+ *
+ * Copyright (c) 2013 Alexander Graf <agraf@suse.de>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or (at
+ * your option) any later version. See the COPYING file in the top-level
+ * directory.
+ */
+
+#ifndef S390_CCW_H
+#define S390_CCW_H
+
+/* #define DEBUG */
+
+typedef unsigned char      u8;
+typedef unsigned short     u16;
+typedef unsigned int       u32;
+typedef unsigned long long u64;
+typedef unsigned long      ulong;
+typedef long               size_t;
+typedef int                bool;
+typedef unsigned char      uint8_t;
+typedef unsigned short     uint16_t;
+typedef unsigned int       uint32_t;
+typedef unsigned long long uint64_t;
+typedef unsigned char      __u8;
+typedef unsigned short     __u16;
+typedef unsigned int       __u32;
+typedef unsigned long long __u64;
+
+#define true 1
+#define false 0
+#define PAGE_SIZE 4096
+
+#ifndef EIO
+#define EIO	1
+#endif
+#ifndef EBUSY
+#define EBUSY	2
+#endif
+#ifndef NULL
+#define NULL    0
+#endif
+
+#include "cio.h"
+
+/* main.c */
+void virtio_panic(const char *string);
+
+/* sclp-ascii.c */
+void sclp_print(const char *string);
+void sclp_setup(void);
+
+/* virtio.c */
+unsigned long virtio_load_direct(ulong rec_list1, ulong rec_list2,
+				 ulong subchan_id, void *load_addr);
+bool virtio_is_blk(struct subchannel_id schid);
+void virtio_setup_block(struct subchannel_id schid);
+int virtio_read(ulong sector, void *load_addr);
+
+/* bootmap.c */
+int zipl_load(void);
+
+static inline void *memset(void *s, int c, size_t n)
+{
+    int i;
+    unsigned char *p = s;
+
+    for (i = 0; i < n; i++) {
+        p[i] = c;
+    }
+
+    return s;
+}
+
+static inline void fill_hex(char *out, unsigned char val)
+{
+    const char hex[] = "0123456789abcdef";
+
+    out[0] = hex[(val >> 4) & 0xf];
+    out[1] = hex[val & 0xf];
+}
+
+static inline void print_int(const char *desc, u64 addr)
+{
+    unsigned char *addr_c = (unsigned char*)&addr;
+    char out[] = ": 0xffffffffffffffff\n";
+    unsigned int i;
+
+    for (i = 0; i < sizeof(addr); i++) {
+        fill_hex(&out[4 + (i*2)], addr_c[i]);
+    }
+
+    sclp_print(desc);
+    sclp_print(out);
+}
+
+static inline void debug_print_int(const char *desc, u64 addr)
+{
+#ifdef DEBUG
+    print_int(desc, addr);
+#endif
+}
+
+static inline void debug_print_addr(const char *desc, void *p)
+{
+#ifdef DEBUG
+    debug_print_int(desc, (unsigned int)(unsigned long)p);
+#endif
+}
+
+/***********************************************
+ *           Hypercall functions               *
+ ***********************************************/
+
+#define KVM_S390_VIRTIO_NOTIFY		0
+#define KVM_S390_VIRTIO_RESET		1
+#define KVM_S390_VIRTIO_SET_STATUS	2
+#define KVM_S390_VIRTIO_CCW_NOTIFY      3
+
+static inline void yield(void)
+{
+	asm volatile ("diag 0,0,0x44"
+                      : :
+		      : "memory", "cc");
+}
+
+#define SECTOR_SIZE 512
+
+#endif /* S390_CCW_H */