Merge bk://linux-acpi.bkbits.net/26-latest-release

into ppc970.osdl.org:/home/torvalds/v2.6/linux

arch/i386/pci/i386.c

@@ -142,7 +142,7 @@ static void __init pcibios_allocate_resources(int pass)
 				DBG("PCI: Resource %08lx-%08lx (f=%lx, d=%d, p=%d)\n",
 				    r->start, r->end, r->flags, disabled, pass);
 				pr = pci_find_parent_resource(dev, r);
-				if (!pr || insert_resource(pr, r) < 0) {
+				if (!pr || request_resource(pr, r) < 0) {
 					printk(KERN_ERR "PCI: Cannot allocate resource region %d of device %s\n", idx, pci_name(dev));
 					/* We'll assign a new address later */
 					r->end -= r->start;
@@ -164,7 +164,7 @@ static void __init pcibios_allocate_resources(int pass)
 	}
 }
 
-static void __init pcibios_assign_resources(void)
+static int __init pcibios_assign_resources(void)
 {
 	struct pci_dev *dev = NULL;
 	int idx;
@@ -204,6 +204,7 @@ static void __init pcibios_assign_resources(void)
 				pci_assign_resource(dev, PCI_ROM_RESOURCE);
 		}
 	}
+	return 0;
 }
 
 void __init pcibios_resource_survey(void)
@@ -212,9 +213,14 @@ void __init pcibios_resource_survey(void)
 	pcibios_allocate_bus_resources(&pci_root_buses);
 	pcibios_allocate_resources(0);
 	pcibios_allocate_resources(1);
-	pcibios_assign_resources();
 }
 
+/**
+ * called in fs_initcall (one below subsys_initcall),
+ * give a chance for motherboard reserve resources
+ */
+fs_initcall(pcibios_assign_resources);
+
 int pcibios_enable_resources(struct pci_dev *dev, int mask)
 {
 	u16 cmd, old_cmd;

drivers/acpi/motherboard.c

@@ -170,4 +170,8 @@ static int __init acpi_motherboard_init(void)
 	return 0;
 }
 
-subsys_initcall(acpi_motherboard_init);
+/**
+ * Reserve motherboard resources after PCI claim BARs,
+ * but before PCI assign resources for uninitialized PCI devices
+ */
+fs_initcall(acpi_motherboard_init);

drivers/ide/ide-dma.c

@@ -407,10 +407,6 @@ static int config_drive_for_dma (ide_drive_t *drive)
 	ide_hwif_t *hwif = HWIF(drive);
 
 	if ((id->capability & 1) && hwif->autodma) {
-		/* Consult the list of known "bad" drives */
-		if (__ide_dma_bad_drive(drive))
-			return __ide_dma_off(drive);
-
 		/*
 		 * Enable DMA on any drive that has
 		 * UltraDMA (mode 0/1/2/3/4/5/6) enabled
@@ -564,6 +560,10 @@ EXPORT_SYMBOL(__ide_dma_host_on);
  
 int __ide_dma_on (ide_drive_t *drive)
 {
+	/* consult the list of known "bad" drives */
+	if (__ide_dma_bad_drive(drive))
+		return 1;
+
 	drive->using_dma = 1;
 	ide_toggle_bounce(drive, 1);
 

drivers/ide/ide-taskfile.c

@@ -611,19 +611,6 @@ int ide_taskfile_ioctl (ide_drive_t *drive, unsigned int cmd, unsigned long arg)
 		case TASKFILE_IN_DMA:
 			err = ide_diag_taskfile(drive, &args, taskin, inbuf);
 			break;
-		case TASKFILE_IN_OUT:
-#if 0
-			args.prehandler = &pre_task_out_intr;
-			args.handler = &task_out_intr;
-			err = ide_diag_taskfile(drive, &args, taskout, outbuf);
-			args.prehandler = NULL;
-			args.handler = &task_in_intr;
-			err = ide_diag_taskfile(drive, &args, taskin, inbuf);
-			break;
-#else
-			err = -EFAULT;
-			goto abort;
-#endif
 		case TASKFILE_MULTI_OUT:
 			if (!drive->mult_count) {
 				/* (hs): give up if multcount is not set */

drivers/ide/pci/cmd64x.c

@@ -38,8 +38,6 @@ static u8 cmd64x_proc = 0;
 static struct pci_dev *cmd_devs[CMD_MAX_DEVS];
 static int n_cmd_devs;
 
-#undef DEBUG_CMD_REGS
-
 static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index)
 {
 	char *p = buf;
@@ -49,9 +47,6 @@ static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index)
 	u8 reg72 = 0, reg73 = 0;			/* primary */
 	u8 reg7a = 0, reg7b = 0;			/* secondary */
 	u8 reg50 = 0, reg71 = 0;			/* extra */
-#ifdef DEBUG_CMD_REGS
-	u8 hi_byte = 0, lo_byte = 0;
-#endif /* DEBUG_CMD_REGS */
 
 	p += sprintf(p, "\nController: %d\n", index);
 	p += sprintf(p, "CMD%x Chipset.\n", dev->device);
@@ -127,18 +122,6 @@ static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index)
 		(reg71 & MRDMODE_BLK_CH0) ? "blocked" : "enabled",
 		(reg71 & MRDMODE_BLK_CH1) ? "blocked" : "enabled");
 
-#ifdef DEBUG_CMD_REGS
-	SPLIT_BYTE(reg50, hi_byte, lo_byte);
-	p += sprintf(p, "CFR       = 0x%02x, HI = 0x%02x, "
-			"LOW = 0x%02x\n", reg50, hi_byte, lo_byte);
-	SPLIT_BYTE(reg57, hi_byte, lo_byte);
-	p += sprintf(p, "ARTTIM23  = 0x%02x, HI = 0x%02x, "
-			"LOW = 0x%02x\n", reg57, hi_byte, lo_byte);
-	SPLIT_BYTE(reg71, hi_byte, lo_byte);
-	p += sprintf(p, "MRDMODE   = 0x%02x, HI = 0x%02x, "
-			"LOW = 0x%02x\n", reg71, hi_byte, lo_byte);
-#endif /* DEBUG_CMD_REGS */
-
 	return (char *)p;
 }
 

drivers/ide/pci/cmd64x.h

@@ -15,10 +15,6 @@
 #define cmdprintk(x...)
 #endif
 
-#ifndef SPLIT_BYTE
-#define SPLIT_BYTE(B,H,L)	((H)=(B>>4), (L)=(B-((B>>4)<<4)))
-#endif
-
 /*
  * CMD64x specific registers definition.
  */

drivers/ide/pci/pdc202xx_old.c

@@ -314,17 +314,6 @@ static int pdc202xx_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 		pci_write_config_byte(dev, (drive_pci)|0x02, CP|TC);
 	}
 
-#if PDC202XX_DECODE_REGISTER_INFO
-	pci_read_config_byte(dev, (drive_pci), &AP);
-	pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
-	pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
-	pci_read_config_byte(dev, (drive_pci)|0x03, &DP);
-
-	decode_registers(REG_A, AP);
-	decode_registers(REG_B, BP);
-	decode_registers(REG_C, CP);
-	decode_registers(REG_D, DP);
-#endif /* PDC202XX_DECODE_REGISTER_INFO */
 #if PDC202XX_DEBUG_DRIVE_INFO
 	printk(KERN_DEBUG "%s: %s drive%d 0x%08x ",
 		drive->name, ide_xfer_verbose(speed),

drivers/ide/pci/pdc202xx_old.h

@@ -10,7 +10,6 @@
 #endif
 
 #define PDC202XX_DEBUG_DRIVE_INFO		0
-#define PDC202XX_DECODE_REGISTER_INFO		0
 
 static const char *pdc_quirk_drives[] = {
 	"QUANTUM FIREBALLlct08 08",
@@ -99,76 +98,6 @@ static inline u8 *pdc202xx_ultra_verbose (u32 drive_pci, u16 slow_cable)
 #define	MC1		0x02	/* DMA"C" timing */
 #define	MC0		0x01	/* DMA"C" timing */
 
-#if PDC202XX_DECODE_REGISTER_INFO
-
-#define REG_A		0x01
-#define REG_B		0x02
-#define REG_C		0x04
-#define REG_D		0x08
-
-static void decode_registers (u8 registers, u8 value)
-{
-	u8	bit = 0, bit1 = 0, bit2 = 0;
-
-	switch(registers) {
-		case REG_A:
-			bit2 = 0;
-			printk("A Register ");
-			if (value & 0x80) printk("SYNC_IN ");
-			if (value & 0x40) printk("ERRDY_EN ");
-			if (value & 0x20) printk("IORDY_EN ");
-			if (value & 0x10) printk("PREFETCH_EN ");
-			if (value & 0x08) { printk("PA3 ");bit2 |= 0x08; }
-			if (value & 0x04) { printk("PA2 ");bit2 |= 0x04; }
-			if (value & 0x02) { printk("PA1 ");bit2 |= 0x02; }
-			if (value & 0x01) { printk("PA0 ");bit2 |= 0x01; }
-			printk("PIO(A) = %d ", bit2);
-			break;
-		case REG_B:
-			bit1 = 0;bit2 = 0;
-			printk("B Register ");
-			if (value & 0x80) { printk("MB2 ");bit1 |= 0x80; }
-			if (value & 0x40) { printk("MB1 ");bit1 |= 0x40; }
-			if (value & 0x20) { printk("MB0 ");bit1 |= 0x20; }
-			printk("DMA(B) = %d ", bit1 >> 5);
-			if (value & 0x10) printk("PIO_FORCED/PB4 ");
-			if (value & 0x08) { printk("PB3 ");bit2 |= 0x08; }
-			if (value & 0x04) { printk("PB2 ");bit2 |= 0x04; }
-			if (value & 0x02) { printk("PB1 ");bit2 |= 0x02; }
-			if (value & 0x01) { printk("PB0 ");bit2 |= 0x01; }
-			printk("PIO(B) = %d ", bit2);
-			break;
-		case REG_C:
-			bit2 = 0;
-			printk("C Register ");
-			if (value & 0x80) printk("DMARQp ");
-			if (value & 0x40) printk("IORDYp ");
-			if (value & 0x20) printk("DMAR_EN ");
-			if (value & 0x10) printk("DMAW_EN ");
-
-			if (value & 0x08) { printk("MC3 ");bit2 |= 0x08; }
-			if (value & 0x04) { printk("MC2 ");bit2 |= 0x04; }
-			if (value & 0x02) { printk("MC1 ");bit2 |= 0x02; }
-			if (value & 0x01) { printk("MC0 ");bit2 |= 0x01; }
-			printk("DMA(C) = %d ", bit2);
-			break;
-		case REG_D:
-			printk("D Register ");
-			break;
-		default:
-			return;
-	}
-	printk("\n        %s ", (registers & REG_D) ? "DP" :
-				(registers & REG_C) ? "CP" :
-				(registers & REG_B) ? "BP" :
-				(registers & REG_A) ? "AP" : "ERROR");
-	for (bit=128;bit>0;bit/=2)
-		printk("%s", (value & bit) ? "1" : "0");
-	printk("\n");
-}
-
-#endif /* PDC202XX_DECODE_REGISTER_INFO */
-
 #define DISPLAY_PDC202XX_TIMINGS
 
 static void init_setup_pdc202ata4(struct pci_dev *dev, ide_pci_device_t *d);

drivers/pcmcia/rsrc_mgr.c

@@ -88,6 +88,9 @@ static resource_map_t io_db = {
 };
 
 static DECLARE_MUTEX(rsrc_sem);
+static unsigned int rsrc_mem_probe;
+#define MEM_PROBE_LOW	(1 << 0)
+#define MEM_PROBE_HIGH	(1 << 1)
 
 #ifdef CONFIG_PCMCIA_PROBE
 
@@ -451,24 +454,22 @@ static u_long inv_probe(resource_map_t *m, struct pcmcia_socket *s)
     return do_mem_probe(m->base, m->num, s);
 }
 
-static void validate_mem(struct pcmcia_socket *s)
+static void validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
 {
     resource_map_t *m, mm;
     static u_char order[] = { 0xd0, 0xe0, 0xc0, 0xf0 };
     static int hi = 0, lo = 0;
     u_long b, i, ok = 0;
-    int force_low = !(s->features & SS_CAP_PAGE_REGS);
 
-    down(&rsrc_sem);
     /* We do up to four passes through the list */
-    if (!force_low) {
-	if (hi++ || (inv_probe(mem_db.next, s) > 0))
-	    goto out;
+    if (probe_mask & MEM_PROBE_HIGH) {
+	if (inv_probe(mem_db.next, s) > 0)
+	    return;
 	printk(KERN_NOTICE "cs: warning: no high memory space "
 	       "available!\n");
     }
-    if (lo++)
-	goto out;
+    if ((probe_mask & MEM_PROBE_LOW) == 0)
+	return;
     for (m = mem_db.next; m != &mem_db; m = mm.next) {
 	mm = *m;
 	/* Only probe < 1 MB */
@@ -488,38 +489,51 @@ static void validate_mem(struct pcmcia_socket *s)
 	    }
 	}
     }
- out:
-    up(&rsrc_sem);
 }
 
 #else /* CONFIG_PCMCIA_PROBE */
 
-static void validate_mem(struct pcmcia_socket *s)
+static void validate_mem(struct pcmcia_socket *s, unsigned int probe_mask)
 {
-    resource_map_t *m, mm;
-    static int done = 0;
+	resource_map_t *m, mm;
     
-    if (done++ == 0) {
-	down(&rsrc_sem);
 	for (m = mem_db.next; m != &mem_db; m = mm.next) {
-	    mm = *m;
-	    if (do_mem_probe(mm.base, mm.num, s))
-		break;
+		mm = *m;
+		if (do_mem_probe(mm.base, mm.num, s))
+			break;
 	}
-	up(&rsrc_sem);
-    }
 }
 
 #endif /* CONFIG_PCMCIA_PROBE */
 
+/*
+ * Locking note: this is the only place where we take
+ * both rsrc_sem and skt_sem.
+ */
 void pcmcia_validate_mem(struct pcmcia_socket *s)
 {
-	down(&s->skt_sem);
+	if (probe_mem) {
+		unsigned int probe_mask;
+
+		down(&rsrc_sem);
+
+		probe_mask = MEM_PROBE_LOW;
+		if (s->features & SS_CAP_PAGE_REGS)
+			probe_mask = MEM_PROBE_HIGH;
+
+		if (probe_mask & ~rsrc_mem_probe) {
+			rsrc_mem_probe |= probe_mask;
 
-	if (probe_mem && s->state & SOCKET_PRESENT)
-		validate_mem(s);
+			down(&s->skt_sem);
 
-	up(&s->skt_sem);
+			if (s->state & SOCKET_PRESENT)
+				validate_mem(s, probe_mask);
+
+			up(&s->skt_sem);
+		}
+
+		up(&rsrc_sem);
+	}
 }
 
 EXPORT_SYMBOL(pcmcia_validate_mem);

drivers/pnp/system.c

@@ -104,4 +104,8 @@ static int __init pnp_system_init(void)
 	return pnp_register_driver(&system_pnp_driver);
 }
 
-subsys_initcall(pnp_system_init);
+/**
+ * Reserve motherboard resources after PCI claim BARs,
+ * but before PCI assign resources for uninitialized PCI devices
+ */
+fs_initcall(pnp_system_init);