---

yaml
---
r: 62846
b: refs/heads/master
c: 55c4499
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3836df6b520a2f93033bf53200b12a2cb5137395
+refs/heads/master: 55c44991e2910519bab274c857d95a08100ff5f7

trunk/Documentation/block/barrier.txt

@@ -79,9 +79,9 @@ and how to prepare flush requests.  Note that the term 'ordered' is
 used to indicate the whole sequence of performing barrier requests
 including draining and flushing.
 
-typedef void (prepare_flush_fn)(struct request_queue *q, struct request *rq);
+typedef void (prepare_flush_fn)(request_queue_t *q, struct request *rq);
 
-int blk_queue_ordered(struct request_queue *q, unsigned ordered,
+int blk_queue_ordered(request_queue_t *q, unsigned ordered,
 		      prepare_flush_fn *prepare_flush_fn);
 
 @q			: the queue in question
@@ -92,7 +92,7 @@ int blk_queue_ordered(struct request_queue *q, unsigned ordered,
 For example, SCSI disk driver's prepare_flush_fn looks like the
 following.
 
-static void sd_prepare_flush(struct request_queue *q, struct request *rq)
+static void sd_prepare_flush(request_queue_t *q, struct request *rq)
 {
 	memset(rq->cmd, 0, sizeof(rq->cmd));
 	rq->cmd_type = REQ_TYPE_BLOCK_PC;

trunk/Documentation/block/biodoc.txt

@@ -740,12 +740,12 @@ Block now offers some simple generic functionality to help support command
 queueing (typically known as tagged command queueing), ie manage more than
 one outstanding command on a queue at any given time.
 
-	blk_queue_init_tags(struct request_queue *q, int depth)
+	blk_queue_init_tags(request_queue_t *q, int depth)
 
 	Initialize internal command tagging structures for a maximum
 	depth of 'depth'.
 
-	blk_queue_free_tags((struct request_queue *q)
+	blk_queue_free_tags((request_queue_t *q)
 
 	Teardown tag info associated with the queue. This will be done
 	automatically by block if blk_queue_cleanup() is called on a queue
@@ -754,15 +754,15 @@ one outstanding command on a queue at any given time.
 The above are initialization and exit management, the main helpers during
 normal operations are:
 
-	blk_queue_start_tag(struct request_queue *q, struct request *rq)
+	blk_queue_start_tag(request_queue_t *q, struct request *rq)
 
 	Start tagged operation for this request. A free tag number between
 	0 and 'depth' is assigned to the request (rq->tag holds this number),
 	and 'rq' is added to the internal tag management. If the maximum depth
 	for this queue is already achieved (or if the tag wasn't started for
 	some other reason), 1 is returned. Otherwise 0 is returned.
 
-	blk_queue_end_tag(struct request_queue *q, struct request *rq)
+	blk_queue_end_tag(request_queue_t *q, struct request *rq)
 
 	End tagged operation on this request. 'rq' is removed from the internal
 	book keeping structures.
@@ -781,7 +781,7 @@ queue. For instance, on IDE any tagged request error needs to clear both
 the hardware and software block queue and enable the driver to sanely restart
 all the outstanding requests. There's a third helper to do that:
 
-	blk_queue_invalidate_tags(struct request_queue *q)
+	blk_queue_invalidate_tags(request_queue_t *q)
 
 	Clear the internal block tag queue and re-add all the pending requests
 	to the request queue. The driver will receive them again on the

trunk/Documentation/block/request.txt

@@ -83,6 +83,6 @@ struct bio *bio			DBI	First bio in request
 
 struct bio *biotail		DBI	Last bio in request
 
-struct request_queue *q		DB	Request queue this request belongs to
+request_queue_t *q		DB	Request queue this request belongs to
 
 struct request_list *rl		B	Request list this request came from

trunk/Documentation/gpio.txt

@@ -148,7 +148,7 @@ pin ... that won't always match the specified output value, because of
 issues including wire-OR and output latencies.
 
 The get/set calls have no error returns because "invalid GPIO" should have
-been reported earlier from gpio_direction_*().  However, note that not all
+been reported earlier in gpio_set_direction().  However, note that not all
 platforms can read the value of output pins; those that can't should always
 return zero.  Also, using these calls for GPIOs that can't safely be accessed
 without sleeping (see below) is an error.
@@ -239,7 +239,7 @@ map between them using calls like:
 Those return either the corresponding number in the other namespace, or
 else a negative errno code if the mapping can't be done.  (For example,
 some GPIOs can't used as IRQs.)  It is an unchecked error to use a GPIO
-number that wasn't set up as an input using gpio_direction_input(), or
+number that hasn't been marked as an input using gpio_set_direction(), or
 to use an IRQ number that didn't originally come from gpio_to_irq().
 
 These two mapping calls are expected to cost on the order of a single

trunk/Documentation/iostats.txt

@@ -79,7 +79,7 @@ Field  8 -- # of milliseconds spent writing
     measured from __make_request() to end_that_request_last()).
 Field  9 -- # of I/Os currently in progress
     The only field that should go to zero. Incremented as requests are
-    given to appropriate struct request_queue and decremented as they finish.
+    given to appropriate request_queue_t and decremented as they finish.
 Field 10 -- # of milliseconds spent doing I/Os
     This field is increases so long as field 9 is nonzero.
 Field 11 -- weighted # of milliseconds spent doing I/Os

trunk/Documentation/lguest/Makefile

@@ -11,7 +11,8 @@ endif
 include $(KBUILD_OUTPUT)/.config
 LGUEST_GUEST_TOP := ($(CONFIG_PAGE_OFFSET) - 0x08000000)
 
-CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 -Wl,-T,lguest.lds
+CFLAGS:=-Wall -Wmissing-declarations -Wmissing-prototypes -O3 \
+	-static -DLGUEST_GUEST_TOP="$(LGUEST_GUEST_TOP)" -Wl,-T,lguest.lds
 LDLIBS:=-lz
 
 all: lguest.lds lguest

trunk/Documentation/lguest/lguest.c

@@ -47,14 +47,12 @@ static bool verbose;
 #define verbose(args...) \
 	do { if (verbose) printf(args); } while(0)
 static int waker_fd;
-static u32 top;
 
 struct device_list
 {
 	fd_set infds;
 	int max_infd;
 
-	struct lguest_device_desc *descs;
 	struct device *dev;
 	struct device **lastdev;
 };
@@ -326,7 +324,8 @@ static void concat(char *dst, char *args[])
 static int tell_kernel(u32 pgdir, u32 start, u32 page_offset)
 {
 	u32 args[] = { LHREQ_INITIALIZE,
-		       top/getpagesize(), pgdir, start, page_offset };
+		       LGUEST_GUEST_TOP/getpagesize(), /* Just below us */
+		       pgdir, start, page_offset };
 	int fd;
 
 	fd = open_or_die("/dev/lguest", O_RDWR);
@@ -383,7 +382,7 @@ static int setup_waker(int lguest_fd, struct device_list *device_list)
 static void *_check_pointer(unsigned long addr, unsigned int size,
 			    unsigned int line)
 {
-	if (addr >= top || addr + size >= top)
+	if (addr >= LGUEST_GUEST_TOP || addr + size >= LGUEST_GUEST_TOP)
 		errx(1, "%s:%i: Invalid address %li", __FILE__, line, addr);
 	return (void *)addr;
 }
@@ -630,26 +629,24 @@ static void handle_input(int fd, struct device_list *devices)
 	}
 }
 
-static struct lguest_device_desc *
-new_dev_desc(struct lguest_device_desc *descs,
-	     u16 type, u16 features, u16 num_pages)
+static struct lguest_device_desc *new_dev_desc(u16 type, u16 features,
+					       u16 num_pages)
 {
-	unsigned int i;
+	static unsigned long top = LGUEST_GUEST_TOP;
+	struct lguest_device_desc *desc;
 
-	for (i = 0; i < LGUEST_MAX_DEVICES; i++) {
-		if (!descs[i].type) {
-			descs[i].type = type;
-			descs[i].features = features;
-			descs[i].num_pages = num_pages;
-			if (num_pages) {
-				map_zeroed_pages(top, num_pages);
-				descs[i].pfn = top/getpagesize();
-				top += num_pages*getpagesize();
-			}
-			return &descs[i];
-		}
-	}
-	errx(1, "too many devices");
+	desc = malloc(sizeof(*desc));
+	desc->type = type;
+	desc->num_pages = num_pages;
+	desc->features = features;
+	desc->status = 0;
+	if (num_pages) {
+		top -= num_pages*getpagesize();
+		map_zeroed_pages(top, num_pages);
+		desc->pfn = top / getpagesize();
+	} else
+		desc->pfn = 0;
+	return desc;
 }
 
 static struct device *new_device(struct device_list *devices,
@@ -672,7 +669,7 @@ static struct device *new_device(struct device_list *devices,
 	dev->fd = fd;
 	if (handle_input)
 		set_fd(dev->fd, devices);
-	dev->desc = new_dev_desc(devices->descs, type, features, num_pages);
+	dev->desc = new_dev_desc(type, features, num_pages);
 	dev->mem = (void *)(dev->desc->pfn * getpagesize());
 	dev->handle_input = handle_input;
 	dev->watch_key = (unsigned long)dev->mem + watch_off;
@@ -869,6 +866,30 @@ static void setup_tun_net(const char *arg, struct device_list *devices)
 		verbose("attached to bridge: %s\n", br_name);
 }
 
+/* Now we know how much memory we have, we copy in device descriptors */
+static void map_device_descriptors(struct device_list *devs, unsigned long mem)
+{
+	struct device *i;
+	unsigned int num;
+	struct lguest_device_desc *descs;
+
+	/* Device descriptor array sits just above top of normal memory */
+	descs = map_zeroed_pages(mem, 1);
+
+	for (i = devs->dev, num = 0; i; i = i->next, num++) {
+		if (num == LGUEST_MAX_DEVICES)
+			errx(1, "too many devices");
+		verbose("Device %i: %s\n", num,
+			i->desc->type == LGUEST_DEVICE_T_NET ? "net"
+			: i->desc->type == LGUEST_DEVICE_T_CONSOLE ? "console"
+			: i->desc->type == LGUEST_DEVICE_T_BLOCK ? "block"
+			: "unknown");
+		descs[num] = *i->desc;
+		free(i->desc);
+		i->desc = &descs[num];
+	}
+}
+
 static void __attribute__((noreturn))
 run_guest(int lguest_fd, struct device_list *device_list)
 {
@@ -913,8 +934,8 @@ static void usage(void)
 
 int main(int argc, char *argv[])
 {
-	unsigned long mem = 0, pgdir, start, page_offset, initrd_size = 0;
-	int i, c, lguest_fd;
+	unsigned long mem, pgdir, start, page_offset, initrd_size = 0;
+	int c, lguest_fd;
 	struct device_list device_list;
 	void *boot = (void *)0;
 	const char *initrd_name = NULL;
@@ -924,15 +945,6 @@ int main(int argc, char *argv[])
 	device_list.lastdev = &device_list.dev;
 	FD_ZERO(&device_list.infds);
 
-	/* We need to know how much memory so we can allocate devices. */
-	for (i = 1; i < argc; i++) {
-		if (argv[i][0] != '-') {
-			mem = top = atoi(argv[i]) * 1024 * 1024;
-			device_list.descs = map_zeroed_pages(top, 1);
-			top += getpagesize();
-			break;
-		}
-	}
 	while ((c = getopt_long(argc, argv, "v", opts, NULL)) != EOF) {
 		switch (c) {
 		case 'v':
@@ -962,12 +974,16 @@ int main(int argc, char *argv[])
 	setup_console(&device_list);
 
 	/* First we map /dev/zero over all of guest-physical memory. */
+	mem = atoi(argv[optind]) * 1024 * 1024;
 	map_zeroed_pages(0, mem / getpagesize());
 
 	/* Now we load the kernel */
 	start = load_kernel(open_or_die(argv[optind+1], O_RDONLY),
 			    &page_offset);
 
+	/* Write the device descriptors into memory. */
+	map_device_descriptors(&device_list, mem);
+
 	/* Map the initrd image if requested */
 	if (initrd_name) {
 		initrd_size = load_initrd(initrd_name, mem);

trunk/arch/arm/plat-omap/mailbox.c

@@ -161,11 +161,11 @@ static void mbox_rx_work(struct work_struct *work)
 /*
  * Mailbox interrupt handler
  */
-static void mbox_txq_fn(struct request_queue * q)
+static void mbox_txq_fn(request_queue_t * q)
 {
 }
 
-static void mbox_rxq_fn(struct request_queue * q)
+static void mbox_rxq_fn(request_queue_t * q)
 {
 }
 
@@ -180,7 +180,7 @@ static void __mbox_rx_interrupt(struct omap_mbox *mbox)
 {
 	struct request *rq;
 	mbox_msg_t msg;
-	struct request_queue *q = mbox->rxq->queue;
+	request_queue_t *q = mbox->rxq->queue;
 
 	disable_mbox_irq(mbox, IRQ_RX);
 
@@ -297,7 +297,7 @@ static struct omap_mbox_queue *mbox_queue_alloc(struct omap_mbox *mbox,
 					request_fn_proc * proc,
 					void (*work) (struct work_struct *))
 {
-	struct request_queue *q;
+	request_queue_t *q;
 	struct omap_mbox_queue *mq;
 
 	mq = kzalloc(sizeof(struct omap_mbox_queue), GFP_KERNEL);

trunk/arch/mips/Makefile

@@ -328,7 +328,7 @@ load-$(CONFIG_MIPS_SEAD)	+= 0xffffffff80100000
 # MIPS SIM
 #
 core-$(CONFIG_MIPS_SIM)		+= arch/mips/mipssim/
-cflags-$(CONFIG_MIPS_SIM)	+= -Iinclude/asm-mips/mach-mipssim
+cflags-$(CONFIG_MIPS_SIM)	+= -Iinclude/asm-mips/mach-sim
 load-$(CONFIG_MIPS_SIM)		+= 0x80100000
 
 #

trunk/arch/mips/arc/console.c

@@ -0,0 +1,31 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996 David S. Miller (dm@sgi.com)
+ * Compability with board caches, Ulf Carlsson
+ */
+#include <linux/kernel.h>
+#include <asm/sgialib.h>
+#include <asm/bcache.h>
+
+/*
+ * IP22 boardcache is not compatible with board caches.  Thus we disable it
+ * during romvec action.  Since r4xx0.c is always compiled and linked with your
+ * kernel, this shouldn't cause any harm regardless what MIPS processor you
+ * have.
+ *
+ * The ARC write and read functions seem to interfere with the serial lines
+ * in some way. You should be careful with them.
+ */
+
+void prom_putchar(char c)
+{
+	ULONG cnt;
+	CHAR it = c;
+
+	bc_disable();
+	ArcWrite(1, &it, 1, &cnt);
+	bc_enable();
+}