[PATCH v2 0/9] PCI, PNP: print resources consistently

[PATCH v2 0/9] PCI, PNP: print resources consistently

[Bjorn Helgaas]

These enhance %pR so we can print resource types and flags more easily.
This doesn't really add anything (other than a couple new messages
about host bridge apertures), but hopefully it will make things more
consistent and a bit easier to debug.  Sample change (with "pci=use_crs"):

    -pci 0000:00:03.0: reg 10 32bit mmio: [0xf6000000-0xf6ffffff]
    -pci 0000:00:03.0: reg 14 io port: [0x2400-0x24ff]
    -pci 0000:00:03.0: reg 18 32bit mmio: [0xf5ff0000-0xf5ff0fff]
    -pci 0000:00:03.0: reg 30 32bit mmio pref: [0x000000-0x01ffff]
    +pci_root PNP0A03:00: host bridge window [io  0x0000-0x0cff]
    +pci_root PNP0A03:00: host bridge window [io  0x0000-0x2cfe]
    +pci_root PNP0A03:00: host bridge window [io  0x03b0-0x03bb]
    +pci_root PNP0A03:00: host bridge window [io  0x03c0-0x03df]
    +pci_root PNP0A03:00: host bridge window [mem 0xf5d00000-0xf6ffffff]
    +pci_root PNP0A03:00: host bridge window [mem 0x000a0000-0x000bffff]
    +pci 0000:00:03.0: reg 10: [mem 0xf6000000-0xf6ffffff]
    +pci 0000:00:03.0: reg 14: [io  0x2400-0x24ff]
    +pci 0000:00:03.0: reg 18: [mem 0xf5ff0000-0xf5ff0fff]
    +pci 0000:00:03.0: reg 30: [mem 0x00000000-0x0001ffff pref]

Changes from initial post to v2:
    - tidied vsprintf stack buffer to shrink and compute size more accurately
      (Joe Perches)
    - use %pR for decoding, %pr for "raw" (with type and flags) instead of
      adding %pRt and %pRf
    - split cleanup from printk changes for easier review

I plan some future patches to add more messages and change some dev_dbg()
to dev_info(), so this series is strictly to change the resource formatting.

---

Bjorn Helgaas (9):
      vsprintf: fix io/mem resource width
      vsprintf: add %pR support for IRQ and DMA resources
      vsprintf: add %pR decoding and %pr for raw struct resource
      PCI: set IORESOURCE_MEM_64 before printing resource
      PCI: trivial bridge resource factorization
      PCI: print resources consistently with %pR
      x86/PCI: print resources consistently with %pR
      ia64/PCI: print resources consistently with %pR
      PNP: print resources consistently with %pR


 arch/ia64/pci/pci.c     |   24 ++++++++++---
 arch/x86/pci/acpi.c     |   15 ++++++--
 arch/x86/pci/i386.c     |   13 +++----
 drivers/pci/pci.c       |    4 +-
 drivers/pci/probe.c     |   29 +++++-----------
 drivers/pci/quirks.c    |    2 +
 drivers/pci/setup-bus.c |   82 +++++++++++++++++++-------------------------
 drivers/pci/setup-res.c |   20 +++++------
 drivers/pnp/quirks.c    |   13 ++-----
 drivers/pnp/resource.c  |   10 ++---
 drivers/pnp/support.c   |   43 +++--------------------
 drivers/pnp/system.c    |   14 +++-----
 lib/vsprintf.c          |   87 ++++++++++++++++++++++++++++++++++++++---------
 13 files changed, 183 insertions(+), 173 deletions(-)

-- 
Bjorn

[PATCH v2 1/9] vsprintf: fix io/mem resource width

[Bjorn Helgaas]

The leading "0x" consumes field width, so leave space for it in addition to
the 4 or 8 hex digits.  This means we'll print "0x0000-0x01df" rather than
"0x00-0x1df", for example.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 lib/vsprintf.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 33bed5e..7830576 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -598,11 +598,11 @@ static char *resource_string(char *buf, char *end, struct resource *res,
 				struct printf_spec spec)
 {
 #ifndef IO_RSRC_PRINTK_SIZE
-#define IO_RSRC_PRINTK_SIZE	4
+#define IO_RSRC_PRINTK_SIZE	6
 #endif
 
 #ifndef MEM_RSRC_PRINTK_SIZE
-#define MEM_RSRC_PRINTK_SIZE	8
+#define MEM_RSRC_PRINTK_SIZE	10
 #endif
 	struct printf_spec num_spec = {
 		.base = 16,

[PATCH v2 2/9] vsprintf: add %pR support for IRQ and DMA resources

[Bjorn Helgaas]

Print addresses (IO port numbers and memory addresses) in hex, but print
others (IRQs and DMA channels) in decimal.  Only print the end if it's
different from the start.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 lib/vsprintf.c |   34 +++++++++++++++++++++++-----------
 1 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 7830576..fcbe69d 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -604,28 +604,40 @@ static char *resource_string(char *buf, char *end, struct resource *res,
 #ifndef MEM_RSRC_PRINTK_SIZE
 #define MEM_RSRC_PRINTK_SIZE	10
 #endif
-	struct printf_spec num_spec = {
+	struct printf_spec hex_spec = {
 		.base = 16,
 		.precision = -1,
 		.flags = SPECIAL | SMALL | ZEROPAD,
 	};
-	/* room for the actual numbers, the two "0x", -, [, ] and the final zero */
-	char sym[4*sizeof(resource_size_t) + 8];
+	struct printf_spec dec_spec = {
+		.base = 10,
+		.precision = -1,
+		.flags = 0,
+	};
+	/* 32-bit res (sizeof==4): 10 chars in dec, 10 in hex ("0x" + 8)
+	 * 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */
+#define RSRC_BUF_SIZE	((2 * sizeof(resource_size_t)) + 4)
+	char sym[2*RSRC_BUF_SIZE + sizeof("[-]")];
 	char *p = sym, *pend = sym + sizeof(sym);
-	int size = -1;
+	int size = -1, addr = 0;
 
-	if (res->flags & IORESOURCE_IO)
+	if (res->flags & IORESOURCE_IO) {
 		size = IO_RSRC_PRINTK_SIZE;
-	else if (res->flags & IORESOURCE_MEM)
+		addr = 1;
+	} else if (res->flags & IORESOURCE_MEM) {
 		size = MEM_RSRC_PRINTK_SIZE;
+		addr = 1;
+	}
 
 	*p++ = '[';
-	num_spec.field_width = size;
-	p = number(p, pend, res->start, num_spec);
-	*p++ = '-';
-	p = number(p, pend, res->end, num_spec);
+	hex_spec.field_width = size;
+	p = number(p, pend, res->start, addr ? hex_spec : dec_spec);
+	if (res->start != res->end) {
+		*p++ = '-';
+		p = number(p, pend, res->end, addr ? hex_spec : dec_spec);
+	}
 	*p++ = ']';
-	*p = 0;
+	*p = '\0';
 
 	return string(buf, end, sym, spec);
 }

[PATCH v2 3/9] vsprintf: add %pR decoding and %pr for raw struct resource

[Bjorn Helgaas]

This adds support for printing struct resource type and flag information.
For example, "%pR" looks like "[mem 0xf5df0000-0xf5df3fff 64bit pref]",
and "%pr" looks like "[mem 0xff5e2000-0xff5e2007 flags 0x201]".

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 lib/vsprintf.c |   53 +++++++++++++++++++++++++++++++++++++++++++++++------
 1 files changed, 47 insertions(+), 6 deletions(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index fcbe69d..6438cd5 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -595,7 +595,7 @@ static char *symbol_string(char *buf, char *end, void *ptr,
 }
 
 static char *resource_string(char *buf, char *end, struct resource *res,
-				struct printf_spec spec)
+				struct printf_spec spec, const char *fmt)
 {
 #ifndef IO_RSRC_PRINTK_SIZE
 #define IO_RSRC_PRINTK_SIZE	6
@@ -614,12 +614,29 @@ static char *resource_string(char *buf, char *end, struct resource *res,
 		.precision = -1,
 		.flags = 0,
 	};
+	struct printf_spec str_spec = {
+		.field_width = -1,
+		.precision = 10,
+		.flags = LEFT,
+	};
+	struct printf_spec flag_spec = {
+		.base = 16,
+		.precision = -1,
+		.flags = SPECIAL | SMALL,
+	};
+
 	/* 32-bit res (sizeof==4): 10 chars in dec, 10 in hex ("0x" + 8)
 	 * 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */
-#define RSRC_BUF_SIZE	((2 * sizeof(resource_size_t)) + 4)
-	char sym[2*RSRC_BUF_SIZE + sizeof("[-]")];
+#define RSRC_BUF_SIZE		((2 * sizeof(resource_size_t)) + 4)
+#define FLAG_BUF_SIZE		(2 * sizeof(res->flags))
+#define DECODED_BUF_SIZE	sizeof("[mem - 64bit pref disabled]")
+#define RAW_BUF_SIZE		sizeof("[mem - flags 0x]")
+	char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE,
+		     2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)];
+
 	char *p = sym, *pend = sym + sizeof(sym);
 	int size = -1, addr = 0;
+	int decode = (fmt[0] == 'R') ? 1 : 0;
 
 	if (res->flags & IORESOURCE_IO) {
 		size = IO_RSRC_PRINTK_SIZE;
@@ -630,12 +647,35 @@ static char *resource_string(char *buf, char *end, struct resource *res,
 	}
 
 	*p++ = '[';
+	if (res->flags & IORESOURCE_IO)
+		p = string(p, pend, "io  ", str_spec);
+	else if (res->flags & IORESOURCE_MEM)
+		p = string(p, pend, "mem ", str_spec);
+	else if (res->flags & IORESOURCE_IRQ)
+		p = string(p, pend, "irq ", str_spec);
+	else if (res->flags & IORESOURCE_DMA)
+		p = string(p, pend, "dma ", str_spec);
+	else {
+		p = string(p, pend, "??? ", str_spec);
+		decode = 0;
+	}
 	hex_spec.field_width = size;
 	p = number(p, pend, res->start, addr ? hex_spec : dec_spec);
 	if (res->start != res->end) {
 		*p++ = '-';
 		p = number(p, pend, res->end, addr ? hex_spec : dec_spec);
 	}
+	if (decode) {
+		if (res->flags & IORESOURCE_MEM_64)
+			p = string(p, pend, " 64bit", str_spec);
+		if (res->flags & IORESOURCE_PREFETCH)
+			p = string(p, pend, " pref", str_spec);
+		if (res->flags & IORESOURCE_DISABLED)
+			p = string(p, pend, " disabled", str_spec);
+	} else {
+		p = string(p, pend, " flags ", str_spec);
+		p = number(p, pend, res->flags, flag_spec);
+	}
 	*p++ = ']';
 	*p = '\0';
 
@@ -813,8 +853,8 @@ static char *ip4_addr_string(char *buf, char *end, const u8 *addr,
  * - 'f' For simple symbolic function names without offset
  * - 'S' For symbolic direct pointers with offset
  * - 's' For symbolic direct pointers without offset
- * - 'R' For a struct resource pointer, it prints the range of
- *       addresses (not the name nor the flags)
+ * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
+ * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
  * - 'M' For a 6-byte MAC address, it prints the address in the
  *       usual colon-separated hex notation
  * - 'm' For a 6-byte MAC address, it prints the hex address without colons
@@ -845,7 +885,8 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 	case 'S':
 		return symbol_string(buf, end, ptr, spec, *fmt);
 	case 'R':
-		return resource_string(buf, end, ptr, spec);
+	case 'r':
+		return resource_string(buf, end, ptr, spec, fmt);
 	case 'M':			/* Colon separated: 00:01:02:03:04:05 */
 	case 'm':			/* Contiguous: 000102030405 */
 		return mac_address_string(buf, end, ptr, spec, fmt);

Re: [PATCH v2 3/9] vsprintf: add %pR decoding and %pr for raw struct resource

[Joe Perches]

On Tue, 2009-10-13 at 13:22 -0600, Bjorn Helgaas wrote:
> This adds support for printing struct resource type and flag information.
> For example, "%pR" looks like "[mem 0xf5df0000-0xf5df3fff 64bit pref]",
> and "%pr" looks like "[mem 0xff5e2000-0xff5e2007 flags 0x201]".

%p[A-Za-z0-9] is a relatively limited resource.

Isn't it better to avoid using multiple characters
for a single type?

Re: [PATCH v2 3/9] vsprintf: add %pR decoding and %pr for raw struct resource

[Bjorn Helgaas]

On Tuesday 13 October 2009 01:40:08 pm Joe Perches wrote:
> On Tue, 2009-10-13 at 13:22 -0600, Bjorn Helgaas wrote:
> > This adds support for printing struct resource type and flag information.
> > For example, "%pR" looks like "[mem 0xf5df0000-0xf5df3fff 64bit pref]",
> > and "%pr" looks like "[mem 0xff5e2000-0xff5e2007 flags 0x201]".
> 
> %p[A-Za-z0-9] is a relatively limited resource.
> 
> Isn't it better to avoid using multiple characters
> for a single type?

I followed the example of F/f, S/s, M/m, etc.  I could
easily go back to %pR/%pRf or something, but I don't know
if it's worth the trouble.

Bjorn

Re: [PATCH v2 3/9] vsprintf: add %pR decoding and %pr for raw struct resource

[Joe Perches]

On Tue, 2009-10-13 at 14:07 -0600, Bjorn Helgaas wrote:
> On Tuesday 13 October 2009 01:40:08 pm Joe Perches wrote:
> > On Tue, 2009-10-13 at 13:22 -0600, Bjorn Helgaas wrote:
> > > This adds support for printing struct resource type and flag information.
> > > For example, "%pR" looks like "[mem 0xf5df0000-0xf5df3fff 64bit pref]",
> > > and "%pr" looks like "[mem 0xff5e2000-0xff5e2007 flags 0x201]".
> > Isn't it better to avoid using multiple characters
> > for a single type?
> I followed the example of F/f, S/s, M/m, etc.  I could
> easily go back to %pR/%pRf or something, but I don't know
> if it's worth the trouble.

I'd prefer %pR and %pRr for raw, but maybe that's just me.

cheers, Joe

[PATCH v2 4/9] PCI: set IORESOURCE_MEM_64 before printing resource

[Bjorn Helgaas]

Set the IORESOURCE_MEM_64 struct resource flag before printing the
resource, so when %pR decodes the resource, we get the "64bit" text.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 drivers/pci/probe.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 8105e32..f760c19 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -225,7 +225,10 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		if ((sizeof(resource_size_t) < 8) && (sz64 > 0x100000000ULL)) {
 			dev_err(&dev->dev, "can't handle 64-bit BAR\n");
 			goto fail;
-		} else if ((sizeof(resource_size_t) < 8) && l) {
+		}
+		
+		res->flags |= IORESOURCE_MEM_64;
+		if ((sizeof(resource_size_t) < 8) && l) {
 			/* Address above 32-bit boundary; disable the BAR */
 			pci_write_config_dword(dev, pos, 0);
 			pci_write_config_dword(dev, pos + 4, 0);
@@ -240,8 +243,6 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 					"64bit mmio pref" : "64bit mmio",
 				 res);
 		}
-
-		res->flags |= IORESOURCE_MEM_64;
 	} else {
 		sz = pci_size(l, sz, mask);
 

[PATCH v2 5/9] PCI: trivial bridge resource factorization

[Bjorn Helgaas]

This adds a temporary "res" so we don't have to repeat, e.g.,
"bus->resource[0]".  The next patch adds more uses of "res".

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 drivers/pci/setup-bus.c |   39 ++++++++++++++++++++++++---------------
 1 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 0959430..fd66a89 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -71,13 +71,15 @@ static void pbus_assign_resources_sorted(const struct pci_bus *bus)
 void pci_setup_cardbus(struct pci_bus *bus)
 {
 	struct pci_dev *bridge = bus->self;
+	struct resource *res;
 	struct pci_bus_region region;
 
 	dev_info(&bridge->dev, "CardBus bridge, secondary bus %04x:%02x\n",
 		 pci_domain_nr(bus), bus->number);
 
-	pcibios_resource_to_bus(bridge, &region, bus->resource[0]);
-	if (bus->resource[0]->flags & IORESOURCE_IO) {
+	res = bus->resource[0];
+	pcibios_resource_to_bus(bridge, &region, res);
+	if (res->flags & IORESOURCE_IO) {
 		/*
 		 * The IO resource is allocated a range twice as large as it
 		 * would normally need.  This allows us to set both IO regs.
@@ -91,8 +93,9 @@ void pci_setup_cardbus(struct pci_bus *bus)
 					region.end);
 	}
 
-	pcibios_resource_to_bus(bridge, &region, bus->resource[1]);
-	if (bus->resource[1]->flags & IORESOURCE_IO) {
+	res = bus->resource[1];
+	pcibios_resource_to_bus(bridge, &region, res);
+	if (res->flags & IORESOURCE_IO) {
 		dev_info(&bridge->dev, "  IO window: %#08lx-%#08lx\n",
 		       (unsigned long)region.start,
 		       (unsigned long)region.end);
@@ -102,8 +105,9 @@ void pci_setup_cardbus(struct pci_bus *bus)
 					region.end);
 	}
 
-	pcibios_resource_to_bus(bridge, &region, bus->resource[2]);
-	if (bus->resource[2]->flags & IORESOURCE_MEM) {
+	res = bus->resource[2];
+	pcibios_resource_to_bus(bridge, &region, res);
+	if (res->flags & IORESOURCE_MEM) {
 		dev_info(&bridge->dev, "  PREFETCH window: %#08lx-%#08lx\n",
 		       (unsigned long)region.start,
 		       (unsigned long)region.end);
@@ -113,8 +117,9 @@ void pci_setup_cardbus(struct pci_bus *bus)
 					region.end);
 	}
 
-	pcibios_resource_to_bus(bridge, &region, bus->resource[3]);
-	if (bus->resource[3]->flags & IORESOURCE_MEM) {
+	res = bus->resource[3];
+	pcibios_resource_to_bus(bridge, &region, res);
+	if (res->flags & IORESOURCE_MEM) {
 		dev_info(&bridge->dev, "  MEM window: %#08lx-%#08lx\n",
 		       (unsigned long)region.start,
 		       (unsigned long)region.end);
@@ -140,6 +145,7 @@ EXPORT_SYMBOL(pci_setup_cardbus);
 static void pci_setup_bridge(struct pci_bus *bus)
 {
 	struct pci_dev *bridge = bus->self;
+	struct resource *res;
 	struct pci_bus_region region;
 	u32 l, bu, lu, io_upper16;
 	int pref_mem64;
@@ -151,8 +157,9 @@ static void pci_setup_bridge(struct pci_bus *bus)
 		 pci_domain_nr(bus), bus->number);
 
 	/* Set up the top and bottom of the PCI I/O segment for this bus. */
-	pcibios_resource_to_bus(bridge, &region, bus->resource[0]);
-	if (bus->resource[0]->flags & IORESOURCE_IO) {
+	res = bus->resource[0];
+	pcibios_resource_to_bus(bridge, &region, res);
+	if (res->flags & IORESOURCE_IO) {
 		pci_read_config_dword(bridge, PCI_IO_BASE, &l);
 		l &= 0xffff0000;
 		l |= (region.start >> 8) & 0x00f0;
@@ -178,8 +185,9 @@ static void pci_setup_bridge(struct pci_bus *bus)
 
 	/* Set up the top and bottom of the PCI Memory segment
 	   for this bus. */
-	pcibios_resource_to_bus(bridge, &region, bus->resource[1]);
-	if (bus->resource[1]->flags & IORESOURCE_MEM) {
+	res = bus->resource[1];
+	pcibios_resource_to_bus(bridge, &region, res);
+	if (res->flags & IORESOURCE_MEM) {
 		l = (region.start >> 16) & 0xfff0;
 		l |= region.end & 0xfff00000;
 		dev_info(&bridge->dev, "  MEM window: %#08lx-%#08lx\n",
@@ -200,12 +208,13 @@ static void pci_setup_bridge(struct pci_bus *bus)
 	/* Set up PREF base/limit. */
 	pref_mem64 = 0;
 	bu = lu = 0;
-	pcibios_resource_to_bus(bridge, &region, bus->resource[2]);
-	if (bus->resource[2]->flags & IORESOURCE_PREFETCH) {
+	res = bus->resource[2];
+	pcibios_resource_to_bus(bridge, &region, res);
+	if (res->flags & IORESOURCE_PREFETCH) {
 		int width = 8;
 		l = (region.start >> 16) & 0xfff0;
 		l |= region.end & 0xfff00000;
-		if (bus->resource[2]->flags & IORESOURCE_MEM_64) {
+		if (res->flags & IORESOURCE_MEM_64) {
 			pref_mem64 = 1;
 			bu = upper_32_bits(region.start);
 			lu = upper_32_bits(region.end);

[PATCH v2 6/9] PCI: print resources consistently with %pR

[Bjorn Helgaas]

This uses %pR to print additional resource information (type, size,
prefetchability, etc.) consistently.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 drivers/pci/pci.c       |    4 +---
 drivers/pci/probe.c     |   22 ++++++----------------
 drivers/pci/quirks.c    |    2 +-
 drivers/pci/setup-bus.c |   43 ++++++++++++-------------------------------
 drivers/pci/setup-res.c |   20 +++++++++-----------
 5 files changed, 29 insertions(+), 62 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 3835871..832243f 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1669,9 +1669,7 @@ static int __pci_request_region(struct pci_dev *pdev, int bar, const char *res_n
 	return 0;
 
 err_out:
-	dev_warn(&pdev->dev, "BAR %d: can't reserve %s region %pR\n",
-		 bar,
-		 pci_resource_flags(pdev, bar) & IORESOURCE_IO ? "I/O" : "mem",
+	dev_warn(&pdev->dev, "BAR %d: can't reserve %pR\n", bar,
 		 &pdev->resource[bar]);
 	return -EBUSY;
 }
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index f760c19..6f0a6fb 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -237,11 +237,8 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		} else {
 			res->start = l64;
 			res->end = l64 + sz64;
-			dev_printk(KERN_DEBUG, &dev->dev,
-				"reg %x %s: %pR\n", pos,
-				 (res->flags & IORESOURCE_PREFETCH) ?
-					"64bit mmio pref" : "64bit mmio",
-				 res);
+			dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n",
+				   pos, res);
 		}
 	} else {
 		sz = pci_size(l, sz, mask);
@@ -252,11 +249,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		res->start = l;
 		res->end = l + sz;
 
-		dev_printk(KERN_DEBUG, &dev->dev, "reg %x %s: %pR\n", pos,
-			(res->flags & IORESOURCE_IO) ? "io port" :
-			 ((res->flags & IORESOURCE_PREFETCH) ?
-				 "32bit mmio pref" : "32bit mmio"),
-			res);
+		dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res);
 	}
 
  out:
@@ -324,7 +317,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
 			res->start = base;
 		if (!res->end)
 			res->end = limit + 0xfff;
-		dev_printk(KERN_DEBUG, &dev->dev, "bridge io port: %pR\n", res);
+		dev_printk(KERN_DEBUG, &dev->dev, "  bridge window %pR\n", res);
 	}
 
 	res = child->resource[1];
@@ -336,8 +329,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
 		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM;
 		res->start = base;
 		res->end = limit + 0xfffff;
-		dev_printk(KERN_DEBUG, &dev->dev, "bridge 32bit mmio: %pR\n",
-			res);
+		dev_printk(KERN_DEBUG, &dev->dev, "  bridge window %pR\n", res);
 	}
 
 	res = child->resource[2];
@@ -376,9 +368,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
 			res->flags |= IORESOURCE_MEM_64;
 		res->start = base;
 		res->end = limit + 0xfffff;
-		dev_printk(KERN_DEBUG, &dev->dev, "bridge %sbit mmio pref: %pR\n",
-			(res->flags & PCI_PREF_RANGE_TYPE_64) ? "64" : "32",
-			res);
+		dev_printk(KERN_DEBUG, &dev->dev, "  bridge window %pR\n", res);
 	}
 }
 
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index efa6534..d996a2f 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -357,7 +357,7 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
 		pcibios_bus_to_resource(dev, res, &bus_region);
 
 		pci_claim_resource(dev, nr);
-		dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
+		dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name);
 	}
 }	
 
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index fd66a89..63544a9 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -84,9 +84,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
 		 * The IO resource is allocated a range twice as large as it
 		 * would normally need.  This allows us to set both IO regs.
 		 */
-		dev_info(&bridge->dev, "  IO window: %#08lx-%#08lx\n",
-		       (unsigned long)region.start,
-		       (unsigned long)region.end);
+		dev_info(&bridge->dev, "  bridge window %pR\n", res);
 		pci_write_config_dword(bridge, PCI_CB_IO_BASE_0,
 					region.start);
 		pci_write_config_dword(bridge, PCI_CB_IO_LIMIT_0,
@@ -96,9 +94,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
 	res = bus->resource[1];
 	pcibios_resource_to_bus(bridge, &region, res);
 	if (res->flags & IORESOURCE_IO) {
-		dev_info(&bridge->dev, "  IO window: %#08lx-%#08lx\n",
-		       (unsigned long)region.start,
-		       (unsigned long)region.end);
+		dev_info(&bridge->dev, "  bridge window %pR\n", res);
 		pci_write_config_dword(bridge, PCI_CB_IO_BASE_1,
 					region.start);
 		pci_write_config_dword(bridge, PCI_CB_IO_LIMIT_1,
@@ -108,9 +104,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
 	res = bus->resource[2];
 	pcibios_resource_to_bus(bridge, &region, res);
 	if (res->flags & IORESOURCE_MEM) {
-		dev_info(&bridge->dev, "  PREFETCH window: %#08lx-%#08lx\n",
-		       (unsigned long)region.start,
-		       (unsigned long)region.end);
+		dev_info(&bridge->dev, "  bridge window %pR\n", res);
 		pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_0,
 					region.start);
 		pci_write_config_dword(bridge, PCI_CB_MEMORY_LIMIT_0,
@@ -120,9 +114,7 @@ void pci_setup_cardbus(struct pci_bus *bus)
 	res = bus->resource[3];
 	pcibios_resource_to_bus(bridge, &region, res);
 	if (res->flags & IORESOURCE_MEM) {
-		dev_info(&bridge->dev, "  MEM window: %#08lx-%#08lx\n",
-		       (unsigned long)region.start,
-		       (unsigned long)region.end);
+		dev_info(&bridge->dev, "  bridge window %pR\n", res);
 		pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_1,
 					region.start);
 		pci_write_config_dword(bridge, PCI_CB_MEMORY_LIMIT_1,
@@ -166,15 +158,13 @@ static void pci_setup_bridge(struct pci_bus *bus)
 		l |= region.end & 0xf000;
 		/* Set up upper 16 bits of I/O base/limit. */
 		io_upper16 = (region.end & 0xffff0000) | (region.start >> 16);
-		dev_info(&bridge->dev, "  IO window: %#04lx-%#04lx\n",
-		    (unsigned long)region.start,
-		    (unsigned long)region.end);
+		dev_info(&bridge->dev, "  bridge window %pR\n", res);
 	}
 	else {
 		/* Clear upper 16 bits of I/O base/limit. */
 		io_upper16 = 0;
 		l = 0x00f0;
-		dev_info(&bridge->dev, "  IO window: disabled\n");
+		dev_info(&bridge->dev, "  bridge window [io  disabled]\n");
 	}
 	/* Temporarily disable the I/O range before updating PCI_IO_BASE. */
 	pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, 0x0000ffff);
@@ -190,13 +180,11 @@ static void pci_setup_bridge(struct pci_bus *bus)
 	if (res->flags & IORESOURCE_MEM) {
 		l = (region.start >> 16) & 0xfff0;
 		l |= region.end & 0xfff00000;
-		dev_info(&bridge->dev, "  MEM window: %#08lx-%#08lx\n",
-		    (unsigned long)region.start,
-		    (unsigned long)region.end);
+		dev_info(&bridge->dev, "  bridge window %pR\n", res);
 	}
 	else {
 		l = 0x0000fff0;
-		dev_info(&bridge->dev, "  MEM window: disabled\n");
+		dev_info(&bridge->dev, "  bridge window [mem disabled]\n");
 	}
 	pci_write_config_dword(bridge, PCI_MEMORY_BASE, l);
 
@@ -211,22 +199,18 @@ static void pci_setup_bridge(struct pci_bus *bus)
 	res = bus->resource[2];
 	pcibios_resource_to_bus(bridge, &region, res);
 	if (res->flags & IORESOURCE_PREFETCH) {
-		int width = 8;
 		l = (region.start >> 16) & 0xfff0;
 		l |= region.end & 0xfff00000;
 		if (res->flags & IORESOURCE_MEM_64) {
 			pref_mem64 = 1;
 			bu = upper_32_bits(region.start);
 			lu = upper_32_bits(region.end);
-			width = 16;
 		}
-		dev_info(&bridge->dev, "  PREFETCH window: %#0*llx-%#0*llx\n",
-				width, (unsigned long long)region.start,
-				width, (unsigned long long)region.end);
+		dev_info(&bridge->dev, "  bridge window %pR\n", res);
 	}
 	else {
 		l = 0x0000fff0;
-		dev_info(&bridge->dev, "  PREFETCH window: disabled\n");
+		dev_info(&bridge->dev, "  bridge window [mem pref disabled]\n");
 	}
 	pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, l);
 
@@ -408,7 +392,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
 			align = pci_resource_alignment(dev, r);
 			order = __ffs(align) - 20;
 			if (order > 11) {
-				dev_warn(&dev->dev, "BAR %d bad alignment %llx: "
+				dev_warn(&dev->dev, "BAR %d: bad alignment %llx: "
 					 "%pR\n", i, (unsigned long long)align, r);
 				r->flags = 0;
 				continue;
@@ -600,10 +584,7 @@ static void pci_bus_dump_res(struct pci_bus *bus)
                 if (!res || !res->end)
                         continue;
 
-		dev_printk(KERN_DEBUG, &bus->dev, "resource %d %s %pR\n", i,
-			   (res->flags & IORESOURCE_IO) ? "io: " :
-			    ((res->flags & IORESOURCE_PREFETCH)? "pref mem":"mem:"),
-			   res);
+		dev_printk(KERN_DEBUG, &bus->dev, "resource %d %pR\n", i, res);
         }
 }
 
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index c54526b..a00ae3b 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -91,9 +91,9 @@ void pci_update_resource(struct pci_dev *dev, int resno)
 		}
 	}
 	res->flags &= ~IORESOURCE_UNSET;
-	dev_dbg(&dev->dev, "BAR %d: moved to bus [%#llx-%#llx] flags %#lx\n",
-		resno, (unsigned long long)region.start,
-		(unsigned long long)region.end, res->flags);
+	dev_dbg(&dev->dev, "BAR %d: moved to %pR (PCI address [%#llx-%#llx]\n",
+		resno, res, (unsigned long long)region.start,
+		(unsigned long long)region.end);
 }
 
 int pci_claim_resource(struct pci_dev *dev, int resource)
@@ -181,9 +181,8 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
 
 	align = pci_resource_alignment(dev, res);
 	if (!align) {
-		dev_info(&dev->dev, "BAR %d: can't allocate resource (bogus "
-			"alignment) %pR flags %#lx\n",
-			resno, res, res->flags);
+		dev_info(&dev->dev, "BAR %d: can't allocate %pR "
+			 "(bogus alignment)\n", resno, res);
 		return -EINVAL;
 	}
 
@@ -199,8 +198,8 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
 	}
 
 	if (ret)
-		dev_info(&dev->dev, "BAR %d: can't allocate %s resource %pR\n",
-			resno, res->flags & IORESOURCE_IO ? "I/O" : "mem", res);
+		dev_info(&dev->dev, "BAR %d: can't allocate %pR\n",
+			 resno, res);
 
 	return ret;
 }
@@ -225,9 +224,8 @@ void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)
 
 		r_align = pci_resource_alignment(dev, r);
 		if (!r_align) {
-			dev_warn(&dev->dev, "BAR %d: bogus alignment "
-				"%pR flags %#lx\n",
-				i, r, r->flags);
+			dev_warn(&dev->dev, "BAR %d: %pR has bogus alignment\n",
+				 i, r);
 			continue;
 		}
 		for (list = head; ; list = list->next) {

[PATCH v2 7/9] x86/PCI: print resources consistently with %pR

[Bjorn Helgaas]

This uses %pR to print additional resource information (type, size,
prefetchability, etc.) consistently.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 arch/x86/pci/acpi.c |   15 ++++++++++++---
 arch/x86/pci/i386.c |   13 ++++++-------
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 1014eb4..6bf8091 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -7,6 +7,7 @@
 #include <asm/pci_x86.h>
 
 struct pci_root_info {
+	struct acpi_device *bridge;
 	char *name;
 	unsigned int res_num;
 	struct resource *res;
@@ -107,12 +108,19 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
 	res->child = NULL;
 
 	if (insert_resource(root, res)) {
-		printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx "
-			"from %s for %s\n", (unsigned long) res->start,
-			(unsigned long) res->end, root->name, info->name);
+		dev_err(&info->bridge->dev,
+			"can't allocate host bridge window %pR\n", res);
 	} else {
 		info->bus->resource[info->res_num] = res;
 		info->res_num++;
+		if (addr.translation_offset)
+			dev_info(&info->bridge->dev, "host bridge window %pR "
+				 "(PCI address [%#llx-%#llx])\n",
+				 res, res->start - addr.translation_offset,
+				 res->end - addr.translation_offset);
+		else
+			dev_info(&info->bridge->dev,
+				 "host bridge window %pR\n", res);
 	}
 	return AE_OK;
 }
@@ -124,6 +132,7 @@ get_current_resources(struct acpi_device *device, int busnum,
 	struct pci_root_info info;
 	size_t size;
 
+	info.bridge = device;
 	info.bus = bus;
 	info.res_num = 0;
 	acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_resource,
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index b22d13b..f5fac0f 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -129,7 +129,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
 					continue;
 				if (!r->start ||
 				    pci_claim_resource(dev, idx) < 0) {
-					dev_info(&dev->dev, "BAR %d: can't allocate resource\n", idx);
+					dev_info(&dev->dev, "BAR %d: can't allocate %pR\n", idx, r);
 					/*
 					 * Something is wrong with the region.
 					 * Invalidate the resource to prevent
@@ -164,12 +164,11 @@ static void __init pcibios_allocate_resources(int pass)
 			else
 				disabled = !(command & PCI_COMMAND_MEMORY);
 			if (pass == disabled) {
-				dev_dbg(&dev->dev, "resource %#08llx-%#08llx (f=%lx, d=%d, p=%d)\n",
-					(unsigned long long) r->start,
-					(unsigned long long) r->end,
-					r->flags, disabled, pass);
+				dev_dbg(&dev->dev,
+					"BAR %d: claiming %pr (d=%d, p=%d)\n",
+					idx, r, disabled, pass);
 				if (pci_claim_resource(dev, idx) < 0) {
-					dev_info(&dev->dev, "BAR %d: can't allocate resource\n", idx);
+					dev_info(&dev->dev, "BAR %d: can't claim %pR\n", idx, r);
 					/* We'll assign a new address later */
 					r->end -= r->start;
 					r->start = 0;
@@ -182,7 +181,7 @@ static void __init pcibios_allocate_resources(int pass)
 				/* Turn the ROM off, leave the resource region,
 				 * but keep it unregistered. */
 				u32 reg;
-				dev_dbg(&dev->dev, "disabling ROM\n");
+				dev_dbg(&dev->dev, "disabling ROM %pR\n", r);
 				r->flags &= ~IORESOURCE_ROM_ENABLE;
 				pci_read_config_dword(dev,
 						dev->rom_base_reg, &reg);

[PATCH v2 8/9] ia64/PCI: print resources consistently with %pR

[Bjorn Helgaas]

This uses %pR to print additional resource information (type, size,
prefetchability, etc.) consistently.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 arch/ia64/pci/pci.c |   24 +++++++++++++++++++-----
 1 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 7de76dd..4704f47 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -126,6 +126,7 @@ alloc_pci_controller (int seg)
 }
 
 struct pci_root_info {
+	struct acpi_device *bridge;
 	struct pci_controller *controller;
 	char *name;
 };
@@ -292,9 +293,20 @@ static __devinit acpi_status add_window(struct acpi_resource *res, void *data)
 	window->offset = offset;
 
 	if (insert_resource(root, &window->resource)) {
-		printk(KERN_ERR "alloc 0x%llx-0x%llx from %s for %s failed\n",
-			window->resource.start, window->resource.end,
-			root->name, info->name);
+		dev_err(&info->bridge->dev,
+			"can't allocate host bridge window %pR\n",
+			&window->resource);
+	} else {
+		if (offset)
+			dev_info(&info->bridge->dev, "host bridge window %pR "
+				 "(PCI address [%#llx-%#llx])\n",
+				 &window->resource,
+				 window->resource.start - offset,
+				 window->resource.end - offset);
+		else
+			dev_info(&info->bridge->dev,
+				 "host bridge window %pR\n",
+				 &window->resource);
 	}
 
 	return AE_OK;
@@ -314,8 +326,9 @@ pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl)
 		    (res->end - res->start < 16))
 			continue;
 		if (j >= PCI_BUS_NUM_RESOURCES) {
-			printk("Ignoring range [%#llx-%#llx] (%lx)\n",
-					res->start, res->end, res->flags);
+			dev_warn(&bus->dev,
+				 "ignoring host bridge window %pR (no space)\n",
+				 res);
 			continue;
 		}
 		bus->resource[j++] = res;
@@ -359,6 +372,7 @@ pci_acpi_scan_root(struct acpi_device *device, int domain, int bus)
 			goto out3;
 
 		sprintf(name, "PCI Bus %04x:%02x", domain, bus);
+		info.bridge = device;
 		info.controller = controller;
 		info.name = name;
 		acpi_walk_resources(device->handle, METHOD_NAME__CRS,

[PATCH v2 9/9] PNP: print resources consistently with %pR

[Bjorn Helgaas]

This uses %pR and %pr to print additional resource information (type,
size, prefetchability, etc.) consistently.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 drivers/pnp/quirks.c   |   13 ++++---------
 drivers/pnp/resource.c |   10 ++++------
 drivers/pnp/support.c  |   43 +++++--------------------------------------
 drivers/pnp/system.c   |   14 ++++++--------
 4 files changed, 19 insertions(+), 61 deletions(-)

diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
index 8473fe5..dfbd5a6 100644
--- a/drivers/pnp/quirks.c
+++ b/drivers/pnp/quirks.c
@@ -285,15 +285,10 @@ static void quirk_system_pci_resources(struct pnp_dev *dev)
 				 * the PCI region, and that might prevent a PCI
 				 * driver from requesting its resources.
 				 */
-				dev_warn(&dev->dev, "%s resource "
-					"(0x%llx-0x%llx) overlaps %s BAR %d "
-					"(0x%llx-0x%llx), disabling\n",
-					pnp_resource_type_name(res),
-					(unsigned long long) pnp_start,
-					(unsigned long long) pnp_end,
-					pci_name(pdev), i,
-					(unsigned long long) pci_start,
-					(unsigned long long) pci_end);
+				dev_warn(&dev->dev,
+					 "disabling %pR because it overlaps "
+					 "%s BAR %d %pR\n", res,
+					 pci_name(pdev), i, &pdev->resource[i]);
 				res->flags |= IORESOURCE_DISABLED;
 			}
 		}
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index ba97654..64d0596 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -517,7 +517,7 @@ struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
 	res->start = irq;
 	res->end = irq;
 
-	pnp_dbg(&dev->dev, "  add irq %d flags %#x\n", irq, flags);
+	pnp_dbg(&dev->dev, "  add %pr\n", res);
 	return pnp_res;
 }
 
@@ -538,7 +538,7 @@ struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
 	res->start = dma;
 	res->end = dma;
 
-	pnp_dbg(&dev->dev, "  add dma %d flags %#x\n", dma, flags);
+	pnp_dbg(&dev->dev, "  add %pr\n", res);
 	return pnp_res;
 }
 
@@ -562,8 +562,7 @@ struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
 	res->start = start;
 	res->end = end;
 
-	pnp_dbg(&dev->dev, "  add io  %#llx-%#llx flags %#x\n",
-		(unsigned long long) start, (unsigned long long) end, flags);
+	pnp_dbg(&dev->dev, "  add %pr\n", res);
 	return pnp_res;
 }
 
@@ -587,8 +586,7 @@ struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
 	res->start = start;
 	res->end = end;
 
-	pnp_dbg(&dev->dev, "  add mem %#llx-%#llx flags %#x\n",
-		(unsigned long long) start, (unsigned long long) end, flags);
+	pnp_dbg(&dev->dev, "  add %pr\n", res);
 	return pnp_res;
 }
 
diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c
index 63087d5..9585c1c 100644
--- a/drivers/pnp/support.c
+++ b/drivers/pnp/support.c
@@ -75,47 +75,14 @@ char *pnp_resource_type_name(struct resource *res)
 
 void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc)
 {
-	char buf[128];
-	int len;
 	struct pnp_resource *pnp_res;
-	struct resource *res;
 
-	if (list_empty(&dev->resources)) {
+	if (list_empty(&dev->resources))
 		pnp_dbg(&dev->dev, "%s: no current resources\n", desc);
-		return;
-	}
-
-	pnp_dbg(&dev->dev, "%s: current resources:\n", desc);
-	list_for_each_entry(pnp_res, &dev->resources, list) {
-		res = &pnp_res->res;
-		len = 0;
-
-		len += scnprintf(buf + len, sizeof(buf) - len, "  %-3s ",
-				 pnp_resource_type_name(res));
-
-		if (res->flags & IORESOURCE_DISABLED) {
-			pnp_dbg(&dev->dev, "%sdisabled\n", buf);
-			continue;
-		}
-
-		switch (pnp_resource_type(res)) {
-		case IORESOURCE_IO:
-		case IORESOURCE_MEM:
-			len += scnprintf(buf + len, sizeof(buf) - len,
-					 "%#llx-%#llx flags %#lx",
-					 (unsigned long long) res->start,
-					 (unsigned long long) res->end,
-					 res->flags);
-			break;
-		case IORESOURCE_IRQ:
-		case IORESOURCE_DMA:
-			len += scnprintf(buf + len, sizeof(buf) - len,
-					 "%lld flags %#lx",
-					 (unsigned long long) res->start,
-					 res->flags);
-			break;
-		}
-		pnp_dbg(&dev->dev, "%s\n", buf);
+	else {
+		pnp_dbg(&dev->dev, "%s: current resources:\n", desc);
+		list_for_each_entry(pnp_res, &dev->resources, list)
+			pnp_dbg(&dev->dev, "%pr\n", &pnp_res->res);
 	}
 }
 
diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
index 59b9092..49c1720 100644
--- a/drivers/pnp/system.c
+++ b/drivers/pnp/system.c
@@ -22,11 +22,11 @@ static const struct pnp_device_id pnp_dev_table[] = {
 	{"", 0}
 };
 
-static void reserve_range(struct pnp_dev *dev, resource_size_t start,
-			  resource_size_t end, int port)
+static void reserve_range(struct pnp_dev *dev, struct resource *r, int port)
 {
 	char *regionid;
 	const char *pnpid = dev_name(&dev->dev);
+	resource_size_t start = r->start, end = r->end;
 	struct resource *res;
 
 	regionid = kmalloc(16, GFP_KERNEL);
@@ -48,10 +48,8 @@ static void reserve_range(struct pnp_dev *dev, resource_size_t start,
 	 * example do reserve stuff they know about too, so we may well
 	 * have double reservations.
 	 */
-	dev_info(&dev->dev, "%s range 0x%llx-0x%llx %s reserved\n",
-		port ? "ioport" : "iomem",
-		(unsigned long long) start, (unsigned long long) end,
-		res ? "has been" : "could not be");
+	dev_info(&dev->dev, "%pR %s reserved\n", r,
+		 res ? "has been" : "could not be");
 }
 
 static void reserve_resources_of_dev(struct pnp_dev *dev)
@@ -77,14 +75,14 @@ static void reserve_resources_of_dev(struct pnp_dev *dev)
 		if (res->end < res->start)
 			continue;	/* invalid */
 
-		reserve_range(dev, res->start, res->end, 1);
+		reserve_range(dev, res, 1);
 	}
 
 	for (i = 0; (res = pnp_get_resource(dev, IORESOURCE_MEM, i)); i++) {
 		if (res->flags & IORESOURCE_DISABLED)
 			continue;
 
-		reserve_range(dev, res->start, res->end, 0);
+		reserve_range(dev, res, 0);
 	}
 }
 

Re: [PATCH v2 0/9] PCI, PNP: print resources consistently

[Yinghai Lu]

On Tue, Oct 13, 2009 at 12:21 PM, Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:
> These enhance %pR so we can print resource types and flags more easily.
> This doesn't really add anything (other than a couple new messages
> about host bridge apertures), but hopefully it will make things more
> consistent and a bit easier to debug.  Sample change (with "pci=use_crs"):
>
>    -pci 0000:00:03.0: reg 10 32bit mmio: [0xf6000000-0xf6ffffff]
>    -pci 0000:00:03.0: reg 14 io port: [0x2400-0x24ff]
>    -pci 0000:00:03.0: reg 18 32bit mmio: [0xf5ff0000-0xf5ff0fff]
>    -pci 0000:00:03.0: reg 30 32bit mmio pref: [0x000000-0x01ffff]
>    +pci_root PNP0A03:00: host bridge window [io  0x0000-0x0cff]
>    +pci_root PNP0A03:00: host bridge window [io  0x0000-0x2cfe]
>    +pci_root PNP0A03:00: host bridge window [io  0x03b0-0x03bb]
>    +pci_root PNP0A03:00: host bridge window [io  0x03c0-0x03df]
>    +pci_root PNP0A03:00: host bridge window [mem 0xf5d00000-0xf6ffffff]
>    +pci_root PNP0A03:00: host bridge window [mem 0x000a0000-0x000bffff]
>    +pci 0000:00:03.0: reg 10: [mem 0xf6000000-0xf6ffffff]
>    +pci 0000:00:03.0: reg 14: [io  0x2400-0x24ff]
>    +pci 0000:00:03.0: reg 18: [mem 0xf5ff0000-0xf5ff0fff]
>    +pci 0000:00:03.0: reg 30: [mem 0x00000000-0x0001ffff pref]

can you keep "io port" and "mmio" ?
so we can use
grep "io port" dmesg.txt or grep "mmio" dmesg.txt

also put "io" and "mmio" "pref' in the [  ], looks strange.
[0xf5ff0000-0xf5ff0fff] is correct range expression.

YH
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Re: [PATCH v2 0/9] PCI, PNP: print resources consistently

[Bjorn Helgaas]

On Wednesday 14 October 2009 12:47:33 am Yinghai Lu wrote:
> On Tue, Oct 13, 2009 at 12:21 PM, Bjorn Helgaas <bjorn.helgaas@hp.com> wrote:
> > These enhance %pR so we can print resource types and flags more easily.
> > This doesn't really add anything (other than a couple new messages
> > about host bridge apertures), but hopefully it will make things more
> > consistent and a bit easier to debug.  Sample change (with "pci=use_crs"):
> >
> >    -pci 0000:00:03.0: reg 10 32bit mmio: [0xf6000000-0xf6ffffff]
> >    -pci 0000:00:03.0: reg 14 io port: [0x2400-0x24ff]
> >    -pci 0000:00:03.0: reg 18 32bit mmio: [0xf5ff0000-0xf5ff0fff]
> >    -pci 0000:00:03.0: reg 30 32bit mmio pref: [0x000000-0x01ffff]
> >    +pci_root PNP0A03:00: host bridge window [io  0x0000-0x0cff]
> >    +pci_root PNP0A03:00: host bridge window [io  0x0000-0x2cfe]
> >    +pci_root PNP0A03:00: host bridge window [io  0x03b0-0x03bb]
> >    +pci_root PNP0A03:00: host bridge window [io  0x03c0-0x03df]
> >    +pci_root PNP0A03:00: host bridge window [mem 0xf5d00000-0xf6ffffff]
> >    +pci_root PNP0A03:00: host bridge window [mem 0x000a0000-0x000bffff]
> >    +pci 0000:00:03.0: reg 10: [mem 0xf6000000-0xf6ffffff]
> >    +pci 0000:00:03.0: reg 14: [io  0x2400-0x24ff]
> >    +pci 0000:00:03.0: reg 18: [mem 0xf5ff0000-0xf5ff0fff]
> >    +pci 0000:00:03.0: reg 30: [mem 0x00000000-0x0001ffff pref]
> 
> can you keep "io port" and "mmio" ?
> so we can use
> grep "io port" dmesg.txt or grep "mmio" dmesg.txt

I don't think that's necessary.  If you want to see only
resource stuff, these greps will work perfectly:

  # dmesg | grep "\[io "
  # dmesg | grep "\[mem "

(This is much better than what's in the current tree, where
resources are labelled with a hodge-podge of mem, mmio, MEM,
io, I/O, io port, IO, or even nothing at all, so you really
can't do the grep at all.)

> also put "io" and "mmio" "pref' in the [  ], looks strange.
> [0xf5ff0000-0xf5ff0fff] is correct range expression.

I could be convinced otherwise, but right now, I don't see a
correctness issue here -- it's just a matter of what the most
convenient format for human readers is.  And I personally like
the fact that everything inside the brackets is an attribute of
the struct resource.

If these are the alternatives:

  bridge window [io  0x0000-0x0cff]
  bridge window io  [0x0000-0x0cff]

one nice thing about the first is that the brackets give a clue
that you should grep for "bridge window", not "bridge window io",
to find the source of the message.

Bjorn

Re: [PATCH v2 0/9] PCI, PNP: print resources consistently

[Bjorn Helgaas]

I'm not planning another version of this series because I don't
think anybody's raised substantive issues.

The only thing I see as a potential issue is the increased stack usage:
in resource_string(), the buffer grows from 40 to 73 bytes (64-bit)
or 24 to 52 bytes (32-bit).  I could imagine using a stack buffer and
a mutex for this, but I'm not sure it's worth the code complexity yet.

Bjorn