Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull MIPS update from Ralf Baechle:
 "Cleanups and fixes for breakage that occured earlier during this merge
  phase.  Also a few patches that didn't make the first pull request.
  Of those is the Alchemy work that merges code for many of the SOCs and
  evaluation boards thus among other code shrinkage, reduces the number
  of MIPS defconfigs by 5."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (22 commits)
  MIPS: SNI: Switch RM400 serial to SCCNXP driver
  MIPS: Remove unused empty_bad_pmd_table[] declaration.
  MIPS: MT: Remove kspd.
  MIPS: Malta: Fix section mismatch.
  MIPS: asm-offset.c: Delete unused irq_cpustat_t struct offsets.
  MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code.
  MIPS: Alchemy: merge PB1550 support into DB1550 code
  MIPS: Alchemy: Single kernel for DB1200/1300/1550
  MIPS: Optimize TLB refill for RI/XI configurations.
  MIPS: proc: Cleanup printing of ASEs.
  MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.
  MIPS: Add detection of DSP ASE Revision 2.
  MIPS: Optimize pgd_init and pmd_init
  MIPS: perf: Add perf functionality for BMIPS5000
  MIPS: perf: Split the Kconfig option CONFIG_MIPS_MT_SMP
  MIPS: perf: Remove unnecessary #ifdef
  MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt)
  MIPS: perf: Change the "mips_perf_event" table unsupported indicator.
  MIPS: Align swapper_pg_dir to 64K for better TLB Refill code.
  vmlinux.lds.h: Allow architectures to add sections to the front of .bss
  ...

1 files changed, 0 insertions, 423 deletions

diff --git a/arch/mips/kernel/kspd.c b/arch/mips/kernel/kspd.c
deleted file mode 100644
index b77f56bbb47..00000000000
--- a/arch/mips/kernel/kspd.c
+++ /dev/null
@@ -1,423 +0,0 @@
-/*
- * Copyright (C) 2005 MIPS Technologies, Inc.  All rights reserved.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/unistd.h>
-#include <linux/file.h>
-#include <linux/fdtable.h>
-#include <linux/fs.h>
-#include <linux/syscalls.h>
-#include <linux/workqueue.h>
-#include <linux/errno.h>
-#include <linux/list.h>
-
-#include <asm/vpe.h>
-#include <asm/rtlx.h>
-#include <asm/kspd.h>
-
-static struct workqueue_struct *workqueue;
-static struct work_struct work;
-
-extern unsigned long cpu_khz;
-
-struct mtsp_syscall {
-	int cmd;
-	unsigned char abi;
-	unsigned char size;
-};
-
-struct mtsp_syscall_ret {
-	int retval;
-	int errno;
-};
-
-struct mtsp_syscall_generic {
-	int arg0;
-	int arg1;
-	int arg2;
-	int arg3;
-	int arg4;
-	int arg5;
-	int arg6;
-};
-
-static struct list_head kspd_notifylist;
-static int sp_stopping;
-
-/* these should match with those in the SDE kit */
-#define MTSP_SYSCALL_BASE	0
-#define MTSP_SYSCALL_EXIT	(MTSP_SYSCALL_BASE + 0)
-#define MTSP_SYSCALL_OPEN	(MTSP_SYSCALL_BASE + 1)
-#define MTSP_SYSCALL_READ	(MTSP_SYSCALL_BASE + 2)
-#define MTSP_SYSCALL_WRITE	(MTSP_SYSCALL_BASE + 3)
-#define MTSP_SYSCALL_CLOSE	(MTSP_SYSCALL_BASE + 4)
-#define MTSP_SYSCALL_LSEEK32	(MTSP_SYSCALL_BASE + 5)
-#define MTSP_SYSCALL_ISATTY	(MTSP_SYSCALL_BASE + 6)
-#define MTSP_SYSCALL_GETTIME	(MTSP_SYSCALL_BASE + 7)
-#define MTSP_SYSCALL_PIPEFREQ	(MTSP_SYSCALL_BASE + 8)
-#define MTSP_SYSCALL_GETTOD	(MTSP_SYSCALL_BASE + 9)
-#define MTSP_SYSCALL_IOCTL     (MTSP_SYSCALL_BASE + 10)
-
-#define MTSP_O_RDONLY		0x0000
-#define MTSP_O_WRONLY		0x0001
-#define MTSP_O_RDWR		0x0002
-#define MTSP_O_NONBLOCK		0x0004
-#define MTSP_O_APPEND		0x0008
-#define MTSP_O_SHLOCK		0x0010
-#define MTSP_O_EXLOCK		0x0020
-#define MTSP_O_ASYNC		0x0040
-/* XXX: check which of these is actually O_SYNC vs O_DSYNC */
-#define MTSP_O_FSYNC		O_SYNC
-#define MTSP_O_NOFOLLOW		0x0100
-#define MTSP_O_SYNC		0x0080
-#define MTSP_O_CREAT		0x0200
-#define MTSP_O_TRUNC		0x0400
-#define MTSP_O_EXCL		0x0800
-#define MTSP_O_BINARY		0x8000
-
-extern int tclimit;
-
-struct apsp_table  {
-	int sp;
-	int ap;
-};
-
-/* we might want to do the mode flags too */
-struct apsp_table open_flags_table[] = {
-	{ MTSP_O_RDWR, O_RDWR },
-	{ MTSP_O_WRONLY, O_WRONLY },
-	{ MTSP_O_CREAT, O_CREAT },
-	{ MTSP_O_TRUNC, O_TRUNC },
-	{ MTSP_O_NONBLOCK, O_NONBLOCK },
-	{ MTSP_O_APPEND, O_APPEND },
-	{ MTSP_O_NOFOLLOW, O_NOFOLLOW }
-};
-
-struct apsp_table syscall_command_table[] = {
-	{ MTSP_SYSCALL_OPEN, __NR_open },
-	{ MTSP_SYSCALL_CLOSE, __NR_close },
-	{ MTSP_SYSCALL_READ, __NR_read },
-	{ MTSP_SYSCALL_WRITE, __NR_write },
-	{ MTSP_SYSCALL_LSEEK32, __NR_lseek },
-	{ MTSP_SYSCALL_IOCTL, __NR_ioctl }
-};
-
-static int sp_syscall(int num, int arg0, int arg1, int arg2, int arg3)
-{
-	register long int _num  __asm__("$2") = num;
-	register long int _arg0  __asm__("$4") = arg0;
-	register long int _arg1  __asm__("$5") = arg1;
-	register long int _arg2  __asm__("$6") = arg2;
-	register long int _arg3  __asm__("$7") = arg3;
-
-	mm_segment_t old_fs;
-
-	old_fs = get_fs();
- 	set_fs(KERNEL_DS);
-
-  	__asm__ __volatile__ (
- 	"	syscall					\n"
- 	: "=r" (_num), "=r" (_arg3)
- 	: "r" (_num), "r" (_arg0), "r" (_arg1), "r" (_arg2), "r" (_arg3));
-
-	set_fs(old_fs);
-
-	/* $a3 is error flag */
-	if (_arg3)
-		return -_num;
-
-	return _num;
-}
-
-static int translate_syscall_command(int cmd)
-{
-	int i;
-	int ret = -1;
-
-	for (i = 0; i < ARRAY_SIZE(syscall_command_table); i++) {
-		if ((cmd == syscall_command_table[i].sp))
-			return syscall_command_table[i].ap;
-	}
-
-	return ret;
-}
-
-static unsigned int translate_open_flags(int flags)
-{
-	int i;
-	unsigned int ret = 0;
-
-	for (i = 0; i < ARRAY_SIZE(open_flags_table); i++) {
-		if( (flags & open_flags_table[i].sp) ) {
-			ret |= open_flags_table[i].ap;
-		}
-	}
-
-	return ret;
-}
-
-
-static int sp_setfsuidgid(uid_t uid, gid_t gid)
-{
-	struct cred *new;
-
-	new = prepare_creds();
-	if (!new)
-		return -ENOMEM;
-
-	new->fsuid = uid;
-	new->fsgid = gid;
-
-	commit_creds(new);
-
-	return 0;
-}
-
-/*
- * Expects a request to be on the sysio channel. Reads it.  Decides whether
- * its a linux syscall and runs it, or whatever.  Puts the return code back
- * into the request and sends the whole thing back.
- */
-void sp_work_handle_request(void)
-{
-	struct mtsp_syscall sc;
-	struct mtsp_syscall_generic generic;
-	struct mtsp_syscall_ret ret;
-	struct kspd_notifications *n;
-	unsigned long written;
-	mm_segment_t old_fs;
-	struct timeval tv;
-	struct timezone tz;
-	int err, cmd;
-
-	char *vcwd;
-	int size;
-
-	ret.retval = -1;
-
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-
-	if (!rtlx_read(RTLX_CHANNEL_SYSIO, &sc, sizeof(struct mtsp_syscall))) {
-		set_fs(old_fs);
-		printk(KERN_ERR "Expected request but nothing to read\n");
-		return;
-	}
-
-	size = sc.size;
-
-	if (size) {
-		if (!rtlx_read(RTLX_CHANNEL_SYSIO, &generic, size)) {
-			set_fs(old_fs);
-			printk(KERN_ERR "Expected request but nothing to read\n");
-			return;
-		}
-	}
-
-	/* Run the syscall at the privilege of the user who loaded the
-	   SP program */
-
-	if (vpe_getuid(tclimit)) {
-		err = sp_setfsuidgid(vpe_getuid(tclimit), vpe_getgid(tclimit));
-		if (!err)
-			pr_err("Change of creds failed\n");
-	}
-
-	switch (sc.cmd) {
-	/* needs the flags argument translating from SDE kit to
-	   linux */
- 	case MTSP_SYSCALL_PIPEFREQ:
- 		ret.retval = cpu_khz * 1000;
- 		ret.errno = 0;
- 		break;
-
- 	case MTSP_SYSCALL_GETTOD:
- 		memset(&tz, 0, sizeof(tz));
- 		if ((ret.retval = sp_syscall(__NR_gettimeofday, (int)&tv,
-					     (int)&tz, 0, 0)) == 0)
-			ret.retval = tv.tv_sec;
-		break;
-
- 	case MTSP_SYSCALL_EXIT:
-		list_for_each_entry(n, &kspd_notifylist, list)
-			n->kspd_sp_exit(tclimit);
-		sp_stopping = 1;
-
-		printk(KERN_DEBUG "KSPD got exit syscall from SP exitcode %d\n",
-		       generic.arg0);
- 		break;
-
- 	case MTSP_SYSCALL_OPEN:
- 		generic.arg1 = translate_open_flags(generic.arg1);
-
-		vcwd = vpe_getcwd(tclimit);
-
-		/* change to cwd of the process that loaded the SP program */
-		old_fs = get_fs();
-		set_fs(KERNEL_DS);
-		sys_chdir(vcwd);
-		set_fs(old_fs);
-
- 		sc.cmd = __NR_open;
-
-		/* fall through */
-
-  	default:
- 		if ((sc.cmd >= __NR_Linux) &&
-		    (sc.cmd <= (__NR_Linux +  __NR_Linux_syscalls)) )
-			cmd = sc.cmd;
-		else
-			cmd = translate_syscall_command(sc.cmd);
-
-		if (cmd >= 0) {
-			ret.retval = sp_syscall(cmd, generic.arg0, generic.arg1,
-			                        generic.arg2, generic.arg3);
-		} else
- 			printk(KERN_WARNING
-			       "KSPD: Unknown SP syscall number %d\n", sc.cmd);
-		break;
- 	} /* switch */
-
-	if (vpe_getuid(tclimit)) {
-		err = sp_setfsuidgid(0, 0);
-		if (!err)
-			pr_err("restoring old creds failed\n");
-	}
-
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-	written = rtlx_write(RTLX_CHANNEL_SYSIO, &ret, sizeof(ret));
-	set_fs(old_fs);
-	if (written < sizeof(ret))
-		printk("KSPD: sp_work_handle_request failed to send to SP\n");
-}
-
-static void sp_cleanup(void)
-{
-	struct files_struct *files = current->files;
-	int i, j;
-	struct fdtable *fdt;
-
-	j = 0;
-
-	/*
-	 * It is safe to dereference the fd table without RCU or
-	 * ->file_lock
-	 */
-	fdt = files_fdtable(files);
-	for (;;) {
-		unsigned long set;
-		i = j * BITS_PER_LONG;
-		if (i >= fdt->max_fds)
-			break;
-		set = fdt->open_fds[j++];
-		while (set) {
-			if (set & 1) {
-				struct file * file = xchg(&fdt->fd[i], NULL);
-				if (file)
-					filp_close(file, files);
-			}
-			i++;
-			set >>= 1;
-		}
-	}
-
-	/* Put daemon cwd back to root to avoid umount problems */
-	sys_chdir("/");
-}
-
-static int channel_open;
-
-/* the work handler */
-static void sp_work(struct work_struct *unused)
-{
-	if (!channel_open) {
-		if( rtlx_open(RTLX_CHANNEL_SYSIO, 1) != 0) {
-			printk("KSPD: unable to open sp channel\n");
-			sp_stopping = 1;
-		} else {
-			channel_open++;
-			printk(KERN_DEBUG "KSPD: SP channel opened\n");
-		}
-	} else {
-		/* wait for some data, allow it to sleep */
-		rtlx_read_poll(RTLX_CHANNEL_SYSIO, 1);
-
-		/* Check we haven't been woken because we are stopping */
-		if (!sp_stopping)
-			sp_work_handle_request();
-	}
-
-	if (!sp_stopping)
-		queue_work(workqueue, &work);
-	else
-		sp_cleanup();
-}
-
-static void startwork(int vpe)
-{
-	sp_stopping = channel_open = 0;
-
-	if (workqueue == NULL) {
-		if ((workqueue = create_singlethread_workqueue("kspd")) == NULL) {
-			printk(KERN_ERR "unable to start kspd\n");
-			return;
-		}
-
-		INIT_WORK(&work, sp_work);
-	}
-
-	queue_work(workqueue, &work);
-}
-
-static void stopwork(int vpe)
-{
-	sp_stopping = 1;
-
-	printk(KERN_DEBUG "KSPD: SP stopping\n");
-}
-
-void kspd_notify(struct kspd_notifications *notify)
-{
-	list_add(&notify->list, &kspd_notifylist);
-}
-
-static struct vpe_notifications notify;
-static int kspd_module_init(void)
-{
-	INIT_LIST_HEAD(&kspd_notifylist);
-
-	notify.start = startwork;
-	notify.stop = stopwork;
-	vpe_notify(tclimit, &notify);
-
-	return 0;
-}
-
-static void kspd_module_exit(void)
-{
-
-}
-
-module_init(kspd_module_init);
-module_exit(kspd_module_exit);
-
-MODULE_DESCRIPTION("MIPS KSPD");
-MODULE_AUTHOR("Elizabeth Oldham, MIPS Technologies, Inc.");
-MODULE_LICENSE("GPL");