Merge bk://bk.arm.linux.org.uk/linux-2.5-pcmcia

into home.transmeta.com:/home/torvalds/v2.5/linux

drivers/pcmcia/Makefile

@@ -3,7 +3,7 @@
 #
 
 obj-$(CONFIG_PCMCIA)				+= pcmcia_core.o ds.o
-obj-$(CONFIG_YENTA) 				+= yenta.o
+obj-$(CONFIG_YENTA) 				+= yenta_socket.o
 
 obj-$(CONFIG_I82365)				+= i82365.o
 obj-$(CONFIG_I82092)				+= i82092.o

drivers/pcmcia/cistpl.c

@@ -106,11 +106,10 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag
     pccard_mem_map *mem = &s->cis_mem;
     if (!(s->features & SS_CAP_STATIC_MAP) &&
 	mem->sys_start == 0) {
-	int low = !(s->features & SS_CAP_PAGE_REGS);
 	validate_mem(s);
 	mem->sys_start = 0;
 	if (find_mem_region(&mem->sys_start, s->map_size,
-			    s->map_size, low, "card services", s)) {
+			    s->map_size, 0, "card services", s)) {
 	    printk(KERN_NOTICE "cs: unable to map card memory!\n");
 	    return NULL;
 	}

drivers/pcmcia/cs.c

@@ -816,7 +816,8 @@ static int pccardd(void *__skt)
 				if ((skt->state & SOCKET_PRESENT) &&
 				     !(status & SS_DETECT))
 					socket_shutdown(skt);
-				if (status & SS_DETECT)
+				if (!(skt->state & SOCKET_PRESENT) &&
+				    (status & SS_DETECT))
 					socket_insert(skt);
 			}
 			if (events & SS_BATDEAD)
@@ -2043,8 +2044,7 @@ int pcmcia_request_window(client_handle_t *handle, win_req_t *req, window_handle
 
     if (!(s->features & SS_CAP_STATIC_MAP) &&
 	find_mem_region(&win->base, win->size, align,
-			(req->Attributes & WIN_MAP_BELOW_1MB) ||
-			!(s->features & SS_CAP_PAGE_REGS),
+			(req->Attributes & WIN_MAP_BELOW_1MB),
 			(*handle)->dev_info, s))
 	return CS_IN_USE;
     (*handle)->state |= CLIENT_WIN_REQ(w);

drivers/pcmcia/cs_internal.h

@@ -168,7 +168,7 @@ void validate_mem(struct pcmcia_socket *s);
 int find_io_region(ioaddr_t *base, ioaddr_t num, ioaddr_t align,
 		   char *name, struct pcmcia_socket *s);
 int find_mem_region(u_long *base, u_long num, u_long align,
-		    int force_low, char *name, struct pcmcia_socket *s);
+		    int low, char *name, struct pcmcia_socket *s);
 int try_irq(u_int Attributes, int irq, int specific);
 void undo_irq(u_int Attributes, int irq);
 int adjust_resource_info(client_handle_t handle, adjust_t *adj);

drivers/pcmcia/rsrc_mgr.c

@@ -139,22 +139,6 @@ static inline int check_io_resource(unsigned long b, unsigned long n,
 	return 0;
 }
 
-/* FIXME: Fundamentally racy. */
-static inline int check_mem_resource(unsigned long b, unsigned long n,
-				     struct pci_dev *dev)
-{
-	struct resource *region;
-
-	region = __request_region(resource_parent(b, n, IORESOURCE_MEM, dev),
-				  b, n, "check_mem_resource");
-	if (!region)
-		return -EBUSY;
-
-	release_resource(region);
-	kfree(region);
-	return 0;
-}
-
 static struct resource *make_resource(unsigned long b, unsigned long n,
 				      int flags, char *name)
 {
@@ -340,52 +324,103 @@ static void do_io_probe(ioaddr_t base, ioaddr_t num)
 ======================================================================*/
 
 /* Validation function for cards with a valid CIS */
-static int cis_readable(struct pcmcia_socket *s, u_long base)
+static int readable(struct pcmcia_socket *s, struct resource *res, cisinfo_t *info)
 {
-    cisinfo_t info1, info2;
-    int ret;
-    s->cis_mem.sys_start = base;
-    s->cis_mem.sys_stop = base+s->map_size-1;
-    s->cis_virt = ioremap(base, s->map_size);
-    ret = pcmcia_validate_cis(s->clients, &info1);
+	int ret = -1;
+
+	s->cis_mem.sys_start = res->start;
+	s->cis_mem.sys_stop = res->end;
+	s->cis_virt = ioremap(res->start, s->map_size);
+	if (s->cis_virt) {
+		ret = pcmcia_validate_cis(s->clients, info);
 		/* invalidate mapping and CIS cache */
 		iounmap(s->cis_virt);
+		s->cis_virt = NULL;
 		destroy_cis_cache(s);
-    if ((ret != 0) || (info1.Chains == 0))
+	}
+	s->cis_mem.sys_start = 0;
+	s->cis_mem.sys_stop = 0;
+	if ((ret != 0) || (info->Chains == 0))
 		return 0;
-    s->cis_mem.sys_start = base+s->map_size;
-    s->cis_mem.sys_stop = base+2*s->map_size-1;
-    s->cis_virt = ioremap(base+s->map_size, s->map_size);
-    ret = pcmcia_validate_cis(s->clients, &info2);
-    iounmap(s->cis_virt);
-    destroy_cis_cache(s);
-    return ((ret == 0) && (info1.Chains == info2.Chains));
+	return 1;
 }
 
 /* Validation function for simple memory cards */
-static int checksum(struct pcmcia_socket *s, u_long base)
+static int checksum(struct pcmcia_socket *s, struct resource *res)
 {
-    int i, a, b, d;
-    s->cis_mem.sys_start = base;
-    s->cis_mem.sys_stop = base+s->map_size-1;
-    s->cis_virt = ioremap(base, s->map_size);
-    s->cis_mem.card_start = 0;
-    s->cis_mem.flags = MAP_ACTIVE;
-    s->ss_entry->set_mem_map(s, &s->cis_mem);
+	pccard_mem_map map;
+	int i, a = 0, b = -1, d;
+	void *virt;
+
+	virt = ioremap(res->start, s->map_size);
+	if (virt) {
+		map.map = 0;
+		map.flags = MAP_ACTIVE;
+		map.speed = 0;
+		map.sys_start = res->start;
+		map.sys_stop = res->end;
+		map.card_start = 0;
+		s->ss_entry->set_mem_map(s, &map);
+
 		/* Don't bother checking every word... */
-    a = 0; b = -1;
 		for (i = 0; i < s->map_size; i += 44) {
-	d = readl(s->cis_virt+i);
-	a += d; b &= d;
+			d = readl(virt+i);
+			a += d;
+			b &= d;
 		}
-    iounmap(s->cis_virt);
+
+		map.flags = 0;
+		s->ss_entry->set_mem_map(s, &map);
+
+		iounmap(virt);
+	}
+
 	return (b == -1) ? -1 : (a>>1);
 }
 
-static int checksum_match(struct pcmcia_socket *s, u_long base)
+static int
+cis_readable(struct pcmcia_socket *s, unsigned long base, unsigned long size)
 {
-    int a = checksum(s, base), b = checksum(s, base+s->map_size);
-    return ((a == b) && (a >= 0));
+	struct resource *res1, *res2;
+	cisinfo_t info1, info2;
+	int ret = 0;
+
+	res1 = request_mem_region(base, size/2, "cs memory probe");
+	res2 = request_mem_region(base + size/2, size/2, "cs memory probe");
+
+	if (res1 && res2) {
+		ret = readable(s, res1, &info1);
+		ret += readable(s, res2, &info2);
+	}
+
+	if (res2)
+		release_resource(res2);
+	if (res1)
+		release_resource(res1);
+
+	return (ret == 2) && (info1.Chains == info2.Chains);
+}
+
+static int
+checksum_match(struct pcmcia_socket *s, unsigned long base, unsigned long size)
+{
+	struct resource *res1, *res2;
+	int a = -1, b = -1;
+
+	res1 = request_mem_region(base, size/2, "cs memory probe");
+	res2 = request_mem_region(base + size/2, size/2, "cs memory probe");
+
+	if (res1 && res2) {
+		a = checksum(s, res1);
+		b = checksum(s, res2);
+	}
+
+	if (res2)
+		release_resource(res2);
+	if (res1)
+		release_resource(res1);
+
+	return (a == b) && (a >= 0);
 }
 
 /*======================================================================
@@ -409,16 +444,16 @@ static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s)
 	step = 2 * s->map_size;
     for (i = j = base; i < base+num; i = j + step) {
 	if (!fail) {	
-	    for (j = i; j < base+num; j += step)
-		if ((check_mem_resource(j, step, s->cb_dev) == 0) &&
-		    cis_readable(s, j))
+	    for (j = i; j < base+num; j += step) {
+		if (cis_readable(s, j, step))
 		    break;
+	    }
 	    fail = ((i == base) && (j == base+num));
 	}
 	if (fail) {
 	    for (j = i; j < base+num; j += 2*step)
-		if ((check_mem_resource(j, 2*step, s->cb_dev) == 0) &&
-		    checksum_match(s, j) && checksum_match(s, j + step))
+		if (checksum_match(s, j, step) &&
+		    checksum_match(s, j + step, step))
 		    break;
 	}
 	if (i != j) {
@@ -555,17 +590,19 @@ int find_io_region(ioaddr_t *base, ioaddr_t num, ioaddr_t align,
 }
 
 int find_mem_region(u_long *base, u_long num, u_long align,
-		    int force_low, char *name, struct pcmcia_socket *s)
+		    int low, char *name, struct pcmcia_socket *s)
 {
     u_long try;
     resource_map_t *m;
     int ret = -1;
 
+    low = low || !(s->features & SS_CAP_PAGE_REGS);
+
     down(&rsrc_sem);
     while (1) {
 	for (m = mem_db.next; m != &mem_db; m = m->next) {
 	    /* first pass >1MB, second pass <1MB */
-	    if ((force_low != 0) ^ (m->base < 0x100000))
+	    if ((low != 0) ^ (m->base < 0x100000))
 		continue;
 
 	    try = (m->base & ~(align-1)) + *base;
@@ -581,9 +618,9 @@ int find_mem_region(u_long *base, u_long num, u_long align,
 		    break;
 	    }
 	}
-	if (force_low)
+	if (low)
 	    break;
-	force_low++;
+	low++;
     }
  out:
     up(&rsrc_sem);

drivers/pcmcia/yenta.c → drivers/pcmcia/yenta_socket.c

 /*
- * Regular cardbus driver ("yenta")
+ * Regular cardbus driver ("yenta_socket")
  *
  * (C) Copyright 1999, 2000 Linus Torvalds
  *
@@ -25,7 +25,7 @@
 
 #include <asm/io.h>
 
-#include "yenta.h"
+#include "yenta_socket.h"
 #include "i82365.h"