Author: gonzo
Date: Wed Sep 4 20:34:36 2013
New Revision: 255212
URL: http://svnweb.freebsd.org/changeset/base/255212
Log:
Add 32-bit support for Gxemul's oldtestmips machine emulation
Original work by: kan@
Added:
head/sys/mips/conf/GXEMUL32 (contents, props changed)
Modified:
head/sys/dev/gxemul/cons/gxemul_cons.c
head/sys/dev/gxemul/disk/gxemul_disk.c
head/sys/dev/gxemul/disk/gxemul_diskreg.h
head/sys/dev/gxemul/ether/gxreg.h
head/sys/mips/gxemul/mpreg.h
Modified: head/sys/dev/gxemul/cons/gxemul_cons.c
==============================================================================
--- head/sys/dev/gxemul/cons/gxemul_cons.c Wed Sep 4 20:12:33 2013
(r255211)
+++ head/sys/dev/gxemul/cons/gxemul_cons.c Wed Sep 4 20:34:36 2013
(r255212)
@@ -99,18 +99,16 @@ static void gxemul_cons_timeout(void *)
* XXXRW: Should be using FreeBSD's bus routines here, but they are not
* available until later in the boot.
*/
-typedef uint64_t paddr_t;
-typedef uint64_t vaddr_t;
-static inline vaddr_t
-mips_phys_to_uncached(paddr_t phys)
+static inline vm_offset_t
+mips_phys_to_uncached(vm_paddr_t phys)
{
return (MIPS_PHYS_TO_DIRECT_UNCACHED(phys));
}
static inline uint8_t
-mips_ioread_uint8(vaddr_t vaddr)
+mips_ioread_uint8(vm_offset_t vaddr)
{
uint8_t v;
@@ -119,7 +117,7 @@ mips_ioread_uint8(vaddr_t vaddr)
}
static inline void
-mips_iowrite_uint8(vaddr_t vaddr, uint8_t v)
+mips_iowrite_uint8(vm_offset_t vaddr, uint8_t v)
{
__asm__ __volatile__ ("sb %0, 0(%1)" : : "r" (v), "r" (vaddr));
Modified: head/sys/dev/gxemul/disk/gxemul_disk.c
==============================================================================
--- head/sys/dev/gxemul/disk/gxemul_disk.c Wed Sep 4 20:12:33 2013
(r255211)
+++ head/sys/dev/gxemul/disk/gxemul_disk.c Wed Sep 4 20:34:36 2013
(r255212)
@@ -214,7 +214,14 @@ gxemul_disk_read(unsigned diskid, void *
if (off < 0 || off % GXEMUL_DISK_DEV_BLOCKSIZE != 0)
return (EINVAL);
+#ifdef _LP64
GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_OFFSET, (uint64_t)off);
+#else
+ GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_OFFSET_LO,
+ (uint32_t)(off & 0xffffffff));
+ GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_OFFSET_HI,
+ (uint32_t)((off >> 32) & 0xffffffff));
+#endif
GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_DISKID, diskid);
GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_START,
GXEMUL_DISK_DEV_START_READ);
switch (GXEMUL_DISK_DEV_READ(GXEMUL_DISK_DEV_STATUS)) {
@@ -280,7 +287,15 @@ gxemul_disk_write(unsigned diskid, const
if (off < 0 || off % GXEMUL_DISK_DEV_BLOCKSIZE != 0)
return (EINVAL);
+#ifdef _LP64
GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_OFFSET, (uint64_t)off);
+#else
+ GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_OFFSET_LO,
+ (uint32_t)(off & 0xffffffff));
+ GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_OFFSET_HI,
+ (uint32_t)((off >> 32) & 0xffffffff));
+#endif
+
GXEMUL_DISK_DEV_WRITE(GXEMUL_DISK_DEV_DISKID, diskid);
dst = GXEMUL_DISK_DEV_FUNCTION(GXEMUL_DISK_DEV_BLOCK);
Modified: head/sys/dev/gxemul/disk/gxemul_diskreg.h
==============================================================================
--- head/sys/dev/gxemul/disk/gxemul_diskreg.h Wed Sep 4 20:12:33 2013
(r255211)
+++ head/sys/dev/gxemul/disk/gxemul_diskreg.h Wed Sep 4 20:34:36 2013
(r255212)
@@ -36,16 +36,28 @@
#define GXEMUL_DISK_DEV_ID_START (0x0000)
#define GXEMUL_DISK_DEV_ID_END (0x0100)
-#define GXEMUL_DISK_DEV_OFFSET (0x0000)
+#ifdef _LP64
+#define GXEMUL_DISK_DEV_OFFSET (0x0000)
+#else
+#define GXEMUL_DISK_DEV_OFFSET_LO (0x0000)
+#define GXEMUL_DISK_DEV_OFFSET_HI (0x0008)
+#endif
#define GXEMUL_DISK_DEV_DISKID (0x0010)
#define GXEMUL_DISK_DEV_START (0x0020)
#define GXEMUL_DISK_DEV_STATUS (0x0030)
#define GXEMUL_DISK_DEV_BLOCK (0x4000)
+#ifdef _LP64
#define GXEMUL_DISK_DEV_FUNCTION(f)
\
(volatile uint64_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_DISK_DEV_BASE
+ (f))
#define GXEMUL_DISK_DEV_READ(f)
\
(volatile uint64_t)*GXEMUL_DISK_DEV_FUNCTION(f)
+#else
+#define GXEMUL_DISK_DEV_FUNCTION(f)
\
+ (volatile uint32_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_DISK_DEV_BASE
+ (f))
+#define GXEMUL_DISK_DEV_READ(f)
\
+ (volatile uint32_t)*GXEMUL_DISK_DEV_FUNCTION(f)
+#endif
#define GXEMUL_DISK_DEV_WRITE(f, v)
\
*GXEMUL_DISK_DEV_FUNCTION(f) = (v)
Modified: head/sys/dev/gxemul/ether/gxreg.h
==============================================================================
--- head/sys/dev/gxemul/ether/gxreg.h Wed Sep 4 20:12:33 2013
(r255211)
+++ head/sys/dev/gxemul/ether/gxreg.h Wed Sep 4 20:34:36 2013
(r255212)
@@ -40,10 +40,17 @@
#define GXEMUL_ETHER_DEV_COMMAND (0x4020)
#define GXEMUL_ETHER_DEV_MAC (0x4040)
+#ifdef _LP64
#define GXEMUL_ETHER_DEV_FUNCTION(f)
\
(volatile uint64_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_ETHER_DEV_BASE
+ (f))
#define GXEMUL_ETHER_DEV_READ(f)
\
(volatile uint64_t)*GXEMUL_ETHER_DEV_FUNCTION(f)
+#else
+#define GXEMUL_ETHER_DEV_FUNCTION(f)
\
+ (volatile uint32_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_ETHER_DEV_BASE
+ (f))
+#define GXEMUL_ETHER_DEV_READ(f)
\
+ (volatile uint32_t)*GXEMUL_ETHER_DEV_FUNCTION(f)
+#endif
#define GXEMUL_ETHER_DEV_WRITE(f, v)
\
*GXEMUL_ETHER_DEV_FUNCTION(f) = (v)
Added: head/sys/mips/conf/GXEMUL32
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/mips/conf/GXEMUL32 Wed Sep 4 20:34:36 2013 (r255212)
@@ -0,0 +1,61 @@
+#
+# GXEMUL "oldtestmips" sample kernel configuration.
+#
+# $FreeBSD$
+#
+
+ident GXEMUL
+
+machine mips mips
+cpu CPU_MIPS4KC
+
+options HZ=100
+
+makeoptions KERNLOADADDR=0x80100000
+
+include "../gxemul/std.gxemul"
+
+hints "GXEMUL.hints" #Default places to look for devices.
+
+makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
+
+makeoptions MODULES_OVERRIDE=""
+
+options DDB
+options KDB
+
+# Make an SMP-capable kernel by default
+options SMP # Symmetric MultiProcessor Kernel
+
+options SCHED_ULE
+options INET # InterNETworking
+options INET6 # IPv6 communications protocols
+
+options FFS #Berkeley Fast Filesystem
+
+# Debugging for use in -current
+#options DEADLKRES #Enable the deadlock resolver
+options INVARIANTS #Enable calls of extra sanity checking
+options INVARIANT_SUPPORT #Extra sanity checks of internal
structures, required by INVARIANTS
+#options WITNESS #Enable checks to detect deadlocks and
cycles
+#options WITNESS_SKIPSPIN #Don't run witness on spinlocks for
speed
+
+options ROOTDEVNAME=\"ufs:gxemul_disk0\"
+
+device gxemul_cons
+device gxemul_disk
+device gxemul_ether
+
+# Pseudo devices.
+device loop # Network loopback
+device random # Entropy device
+device ether # Ethernet support
+device tun # Packet tunnel.
+device md # Memory "disks"
+device gif # IPv6 and IPv4 tunneling
+device faith # IPv6-to-IPv4 relaying (translation)
+
+# The `bpf' device enables the Berkeley Packet Filter.
+# Be aware of the administrative consequences of enabling this!
+# Note that 'bpf' is required for DHCP.
+device bpf # Berkeley packet filter
Modified: head/sys/mips/gxemul/mpreg.h
==============================================================================
--- head/sys/mips/gxemul/mpreg.h Wed Sep 4 20:12:33 2013
(r255211)
+++ head/sys/mips/gxemul/mpreg.h Wed Sep 4 20:34:36 2013
(r255212)
@@ -43,10 +43,17 @@
#define GXEMUL_MP_DEV_IPI_READ 0x00c0
#define GXEMUL_MP_DEV_CYCLES 0x00d0
+#ifdef _LP64
#define GXEMUL_MP_DEV_FUNCTION(f)
\
(volatile uint64_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_MP_DEV_BASE +
(f))
#define GXEMUL_MP_DEV_READ(f)
\
(volatile uint64_t)*GXEMUL_MP_DEV_FUNCTION(f)
+#else
+#define GXEMUL_MP_DEV_FUNCTION(f)
\
+ (volatile uint32_t *)MIPS_PHYS_TO_DIRECT_UNCACHED(GXEMUL_MP_DEV_BASE +
(f))
+#define GXEMUL_MP_DEV_READ(f)
\
+ (volatile uint32_t)*GXEMUL_MP_DEV_FUNCTION(f)
+#endif
#define GXEMUL_MP_DEV_WRITE(f, v)
\
*GXEMUL_MP_DEV_FUNCTION(f) = (v)
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