2007-06-08 22:46:43

by Kok, Auke

Subject: [PATCH 1/2] [RFC] PCI: read revision ID by default

Currently there are 97 occurrences where drivers need the pci
revision ID. We can do this once for all devices. Even the pci
subsystem needs the revision several times for quirks. The extra
u8 member pads out nicely in the pci_dev struct.

Signed-off-by: Auke Kok <[email protected]>
---

drivers/pci/probe.c | 3 +++
include/linux/pci.h | 1 +
2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index e48fcf0..0fdb71d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -918,6 +918,9 @@ pci_scan_device(struct pci_bus *bus, int devfn)
dev->cfg_size = pci_cfg_space_size(dev);
dev->error_state = pci_channel_io_normal;

+ /* read the PCI revision: 1 byte */
+ pci_read_config_byte(dev, PCI_REVISION_ID, &dev->revision);
+
/* Assume 32-bit PCI; let 64-bit PCI cards (which are far rarer)
set this higher, assuming the system even supports it. */
dev->dma_mask = 0xffffffff;
diff --git a/include/linux/pci.h b/include/linux/pci.h
index fbf3766..9847936 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -138,6 +138,7 @@ struct pci_dev {
unsigned short subsystem_vendor;
unsigned short subsystem_device;
unsigned int class; /* 3 bytes: (base,sub,prog-if) */
+ u8 revision; /* PCI revision, low byte of class word */
u8 hdr_type; /* PCI header type (`multi' flag masked out) */
u8 rom_base_reg; /* which config register controls the ROM */
u8 pin; /* which interrupt pin this device uses */

2007-06-08 22:47:01

by Kok, Auke

Subject: [PATCH 2/2] [RFC] PCI: Change all drivers to use pci_device->revision

Instead of all drivers reading pci config space to get the revision
ID, they can now use the pci_device->revision member.

This exposes some issues where drivers where reading a word or a dword
for the revision number, and adding useless error-handling around the
read. Some drivers even just read it for no purpose of all.

In devices where the revision ID is being copied over and used in what
appears to be the equivalent of hotpath, I have left the copy code
and the cached copy as not to influence the driver's performance.

Compile tested with make all{yes,mod}config on x86_64 and i386.

Signed-off-by: Auke Kok <[email protected]>
---

arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c | 6 +---
arch/i386/kernel/cpu/cpufreq/gx-suspmod.c | 4 +--
arch/i386/kernel/cpu/cpufreq/speedstep-ich.c | 4 +--
arch/i386/pci/fixup.c | 9 ++----
arch/mips/pci/fixup-cobalt.c | 10 ++-----
drivers/acpi/processor_core.c | 7 +----
drivers/ata/ata_piix.c | 6 +---
drivers/ata/pata_ali.c | 34 +++++++++++-------------
drivers/ata/pata_amd.c | 4 +--
drivers/ata/pata_it821x.c | 3 +-
drivers/ata/pata_serverworks.c | 5 +---
drivers/ata/pata_sis.c | 8 +-----
drivers/ata/pata_sl82c105.c | 5 +---
drivers/ata/pata_via.c | 6 +---
drivers/ata/sata_mv.c | 20 ++++----------
drivers/atm/eni.c | 9 +-----
drivers/atm/idt77252.c | 13 ++-------
drivers/atm/iphase.c | 9 ++----
drivers/atm/lanai.c | 13 +--------
drivers/atm/zatm.c | 6 +---
drivers/char/agp/amd-k7-agp.c | 4 +--
drivers/char/agp/amd64-agp.c | 6 +---
drivers/clocksource/acpi_pm.c | 5 +---
drivers/i2c/busses/i2c-viapro.c | 3 +-
drivers/ide/pci/alim15x3.c | 2 +
drivers/ide/pci/amd74xx.c | 9 ++----
drivers/ide/pci/cmd64x.c | 9 +-----
drivers/ide/pci/hpt366.c | 20 ++++----------
drivers/ide/pci/piix.c | 6 +---
drivers/ide/pci/serverworks.c | 13 ++-------
drivers/ide/pci/sis5513.c | 8 +-----
drivers/ide/pci/sl82c105.c | 4 +--
drivers/ide/pci/via82cxxx.c | 9 ++----
drivers/infiniband/hw/ipath/ipath_driver.c | 9 +-----
drivers/isdn/hisax/bkm_a8.c | 4 +--
drivers/media/radio/radio-gemtek-pci.c | 4 +--
drivers/media/video/meye.c | 4 +--
drivers/net/8139cp.c | 7 +----
drivers/net/8139too.c | 7 +----
drivers/net/atl1/atl1.h | 1 -
drivers/net/atl1/atl1_main.c | 4 ---
drivers/net/bnx2.c | 5 +---
drivers/net/cassini.c | 8 ++----
drivers/net/dl2k.c | 3 +-
drivers/net/dl2k.h | 1 -
drivers/net/e100.c | 8 ++----
drivers/net/e1000/e1000_main.c | 3 +-
drivers/net/forcedeth.c | 4 +--
drivers/net/netxen/netxen_nic_main.c | 7 +----
drivers/net/s2io.c | 25 +++---------------
drivers/net/s2io.h | 1 -
drivers/net/sundance.c | 7 +----
drivers/net/sunhme.c | 8 +-----
drivers/net/tg3.c | 6 +---
drivers/net/tlan.c | 5 +---
drivers/net/tulip/de4x5.c | 8 +++---
drivers/net/tulip/dmfe.c | 26 ++++++++----------
drivers/net/tulip/tulip_core.c | 13 +++------
drivers/net/tulip/xircom_cb.c | 5 +---
drivers/net/tulip/xircom_tulip_cb.c | 4 +--
drivers/net/via-rhine.c | 13 ++++-----
drivers/net/via-velocity.c | 3 +-
drivers/net/wan/pc300_drv.c | 4 +--
drivers/net/wan/pc300too.c | 2 -
drivers/net/wan/pci200syn.c | 2 -
drivers/net/wireless/bcm43xx/bcm43xx_main.c | 6 +---
drivers/pci/hotplug/cpqphp_core.c | 12 ++++----
drivers/pci/quirks.c | 14 +++-------
drivers/scsi/aic94xx/aic94xx_init.c | 9 +-----
drivers/scsi/ipr.c | 22 ++++------------
drivers/scsi/ips.c | 9 +-----
drivers/scsi/qla2xxx/qla_init.c | 2 +
drivers/serial/jsm/jsm_driver.c | 2 +
drivers/usb/host/ehci-pci.c | 3 +-
drivers/video/kyro/STG4000InitDevice.c | 5 +---
drivers/video/matrox/matroxfb_base.c | 4 +--
drivers/video/sis/sis_main.c | 2 +
drivers/video/sstfb.c | 2 +
drivers/video/tgafb.c | 3 +-
sound/oss/emu10k1/main.c | 2 +
sound/oss/es1371.c | 2 +
sound/pci/ali5451/ali5451.c | 2 +
sound/pci/atiixp.c | 6 +---
sound/pci/atiixp_modem.c | 5 +---
sound/pci/au88x0/au88x0.c | 6 +---
sound/pci/ca0106/ca0106.h | 1 -
sound/pci/ca0106/ca0106_main.c | 5 +---
sound/pci/emu10k1/emu10k1_main.c | 4 +--
sound/pci/emu10k1/emu10k1x.c | 2 +
sound/pci/ens1370.c | 4 +--
sound/pci/fm801.c | 4 +--
sound/pci/via82xx.c | 14 ++++------
sound/pci/via82xx_modem.c | 4 +--
sound/pci/ymfpci/ymfpci_main.c | 2 +
94 files changed, 189 insertions(+), 459 deletions(-)

diff --git a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
index 0d49d73..66acd50 100644
--- a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
+++ b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
@@ -391,8 +391,6 @@ static struct cpufreq_driver nforce2_driver = {
*/
static unsigned int nforce2_detect_chipset(void)
{
- u8 revision;
-
nforce2_chipset_dev = pci_get_subsys(PCI_VENDOR_ID_NVIDIA,
PCI_DEVICE_ID_NVIDIA_NFORCE2,
PCI_ANY_ID, PCI_ANY_ID, NULL);
@@ -400,10 +398,8 @@ static unsigned int nforce2_detect_chipset(void)
if (nforce2_chipset_dev == NULL)
return -ENODEV;

- pci_read_config_byte(nforce2_chipset_dev, PCI_REVISION_ID, &revision);
-
printk(KERN_INFO "cpufreq: Detected nForce2 chipset revision %X\n",
- revision);
+ nforce2_chipset_dev->revision);
printk(KERN_INFO
"cpufreq: FSB changing is maybe unstable and can lead to crashes and data loss.\n");

diff --git a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
index 6667e9c..1941445 100644
--- a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
@@ -115,7 +115,6 @@ struct gxfreq_params {
u8 pci_suscfg;
u8 pci_pmer1;
u8 pci_pmer2;
- u8 pci_rev;
struct pci_dev *cs55x0;
};

@@ -276,7 +275,7 @@ static void gx_set_cpuspeed(unsigned int khz)
pci_write_config_byte(gx_params->cs55x0, PCI_VIDTC, 100);/* typical 50 to 100ms */
pci_write_config_byte(gx_params->cs55x0, PCI_PMER1, pmer1);

- if (gx_params->pci_rev < 0x10) { /* CS5530(rev 1.2, 1.3) */
+ if (gx_params->cs55x0->revision < 0x10) { /* CS5530(rev 1.2, 1.3) */
suscfg = gx_params->pci_suscfg | SUSMOD;
} else { /* CS5530A,B.. */
suscfg = gx_params->pci_suscfg | SUSMOD | PWRSVE;
@@ -471,7 +470,6 @@ static int __init cpufreq_gx_init(void)
pci_read_config_byte(params->cs55x0, PCI_PMER2, &(params->pci_pmer2));
pci_read_config_byte(params->cs55x0, PCI_MODON, &(params->on_duration));
pci_read_config_byte(params->cs55x0, PCI_MODOFF, &(params->off_duration));
- pci_read_config_byte(params->cs55x0, PCI_REVISION_ID, &params->pci_rev);

if ((ret = cpufreq_register_driver(&gx_suspmod_driver))) {
kfree(params);
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c b/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
index 698f980..a5b2346 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
@@ -205,7 +205,6 @@ static unsigned int speedstep_detect_chipset (void)
* host brige. Abort on these systems.
*/
static struct pci_dev *hostbridge;
- u8 rev = 0;

hostbridge = pci_get_subsys(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_82815_MC,
@@ -216,8 +215,7 @@ static unsigned int speedstep_detect_chipset (void)
if (!hostbridge)
return 2; /* 2-M */

- pci_read_config_byte(hostbridge, PCI_REVISION_ID, &rev);
- if (rev < 5) {
+ if (hostbridge->revision < 5) {
dprintk("hostbridge does not support speedstep\n");
speedstep_chipset_dev = NULL;
pci_dev_put(hostbridge);
diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c
index b95b429..e7306db 100644
--- a/arch/i386/pci/fixup.c
+++ b/arch/i386/pci/fixup.c
@@ -118,12 +118,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, pci
static void pci_fixup_via_northbridge_bug(struct pci_dev *d)
{
u8 v;
- u8 revision;
int where = 0x55;
int mask = 0x1f; /* clear bits 5, 6, 7 by default */

- pci_read_config_byte(d, PCI_REVISION_ID, &revision);
-
if (d->device == PCI_DEVICE_ID_VIA_8367_0) {
/* fix pci bus latency issues resulted by NB bios error
it appears on bug free^Wreduced kt266x's bios forces
@@ -133,8 +130,8 @@ static void pci_fixup_via_northbridge_bug(struct pci_dev *d)
where = 0x95; /* the memory write queue timer register is
different for the KT266x's: 0x95 not 0x55 */
} else if (d->device == PCI_DEVICE_ID_VIA_8363_0 &&
- (revision == VIA_8363_KL133_REVISION_ID ||
- revision == VIA_8363_KM133_REVISION_ID)) {
+ (d->revision == VIA_8363_KL133_REVISION_ID ||
+ d->revision == VIA_8363_KM133_REVISION_ID)) {
mask = 0x3f; /* clear only bits 6 and 7; clearing bit 5
causes screen corruption on the KL133/KM133 */
}
@@ -142,7 +139,7 @@ static void pci_fixup_via_northbridge_bug(struct pci_dev *d)
pci_read_config_byte(d, where, &v);
if (v & ~mask) {
printk(KERN_WARNING "Disabling VIA memory write queue (PCI ID %04x, rev %02x): [%02x] %02x & %02x -> %02x\n", \
- d->device, revision, where, v, mask, v & mask);
+ d->device, d->revision, where, v, mask, v & mask);
v &= mask;
pci_write_config_byte(d, where, v);
}
diff --git a/arch/mips/pci/fixup-cobalt.c b/arch/mips/pci/fixup-cobalt.c
index d57ffd7..4854bf9 100644
--- a/arch/mips/pci/fixup-cobalt.c
+++ b/arch/mips/pci/fixup-cobalt.c
@@ -58,8 +58,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1,

static void qube_raq_galileo_fixup(struct pci_dev *dev)
{
- unsigned short galileo_id;
-
if (dev->devfn != PCI_DEVFN(0, 0))
return;

@@ -84,16 +82,14 @@ static void qube_raq_galileo_fixup(struct pci_dev *dev)
* Therefore we must set the disconnect/retry cycle values to
* something sensible when using the new Galileo.
*/
- pci_read_config_word(dev, PCI_REVISION_ID, &galileo_id);
- galileo_id &= 0xff; /* mask off class info */

- printk(KERN_INFO "Galileo: revision %u\n", galileo_id);
+ printk(KERN_INFO "Galileo: revision %u\n", dev->revision);

#if 0
- if (galileo_id >= 0x10) {
+ if (dev->revision >= 0x10) {
/* New Galileo, assumes PCI stop line to VIA is connected. */
GT_WRITE(GT_PCI0_TOR_OFS, 0x4020);
- } else if (galileo_id == 0x1 || galileo_id == 0x2)
+ } else if (dev->revision == 0x1 || dev->revision == 0x2)
#endif
{
signed int timeo;
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index f7de02a..e1ca86d 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -115,7 +115,6 @@ struct acpi_processor_errata errata __read_mostly;

static int acpi_processor_errata_piix4(struct pci_dev *dev)
{
- u8 rev = 0;
u8 value1 = 0;
u8 value2 = 0;

@@ -127,9 +126,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
* Note that 'dev' references the PIIX4 ACPI Controller.
*/

- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
-
- switch (rev) {
+ switch (dev->revision) {
case 0:
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n"));
break;
@@ -147,7 +144,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
break;
}

- switch (rev) {
+ switch (dev->revision) {

case 0: /* PIIX4 A-step */
case 1: /* PIIX4 B-step */
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 9c07b88..53d6209 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -915,20 +915,18 @@ static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev)
{
struct pci_dev *pdev = NULL;
u16 cfg;
- u8 rev;
int no_piix_dma = 0;

while((pdev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, pdev)) != NULL)
{
/* Look for 450NX PXB. Check for problem configurations
A PCI quirk checks bit 6 already */
- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
pci_read_config_word(pdev, 0x41, &cfg);
/* Only on the original revision: IDE DMA can hang */
- if (rev == 0x00)
+ if (pdev->revision == 0x00)
no_piix_dma = 1;
/* On all revisions below 5 PXB bus lock must be disabled for IDE */
- else if (cfg & (1<<14) && rev < 5)
+ else if (cfg & (1<<14) && pdev->revision < 5)
no_piix_dma = 2;
}
if (no_piix_dma)
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 3c55a5f..25cf9c3 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -455,23 +455,21 @@ static struct ata_port_operations ali_c5_port_ops = {

static void ali_init_chipset(struct pci_dev *pdev)
{
- u8 rev, tmp;
+ u8 tmp;
struct pci_dev *north, *isa_bridge;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
-
/*
* The chipset revision selects the driver operations and
* mode data.
*/

- if (rev >= 0x20 && rev < 0xC2) {
+ if (pdev->revision >= 0x20 && pdev->revision < 0xC2) {
/* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */
pci_read_config_byte(pdev, 0x4B, &tmp);
/* Clear CD-ROM DMA write bit */
tmp &= 0x7F;
pci_write_config_byte(pdev, 0x4B, tmp);
- } else if (rev >= 0xC2) {
+ } else if (pdev->revision >= 0xC2) {
/* Enable cable detection logic */
pci_read_config_byte(pdev, 0x4B, &tmp);
pci_write_config_byte(pdev, 0x4B, tmp | 0x08);
@@ -483,21 +481,21 @@ static void ali_init_chipset(struct pci_dev *pdev)
/* Configure the ALi bridge logic. For non ALi rely on BIOS.
Set the south bridge enable bit */
pci_read_config_byte(isa_bridge, 0x79, &tmp);
- if (rev == 0xC2)
+ if (pdev->revision == 0xC2)
pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04);
- else if (rev > 0xC2 && rev < 0xC5)
+ else if (pdev->revision > 0xC2 && pdev->revision < 0xC5)
pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02);
}
- if (rev >= 0x20) {
+ if (pdev->revision >= 0x20) {
/*
* CD_ROM DMA on (0x53 bit 0). Enable this even if we want
* to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control
* via 0x54/55.
*/
pci_read_config_byte(pdev, 0x53, &tmp);
- if (rev <= 0x20)
+ if (pdev->revision <= 0x20)
tmp &= ~0x02;
- if (rev >= 0xc7)
+ if (pdev->revision >= 0xc7)
tmp |= 0x03;
else
tmp |= 0x01; /* CD_ROM enable for DMA */
@@ -579,25 +577,23 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
};

const struct ata_port_info *ppi[] = { NULL, NULL };
- u8 rev, tmp;
+ u8 tmp;
struct pci_dev *isa_bridge;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
-
/*
* The chipset revision selects the driver operations and
* mode data.
*/

- if (rev < 0x20) {
+ if (pdev->revision < 0x20) {
ppi[0] = &info_early;
- } else if (rev < 0xC2) {
+ } else if (pdev->revision < 0xC2) {
ppi[0] = &info_20;
- } else if (rev == 0xC2) {
+ } else if (pdev->revision == 0xC2) {
ppi[0] = &info_c2;
- } else if (rev == 0xC3) {
+ } else if (pdev->revision == 0xC3) {
ppi[0] = &info_c3;
- } else if (rev == 0xC4) {
+ } else if (pdev->revision == 0xC4) {
ppi[0] = &info_c4;
} else
ppi[0] = &info_c5;
@@ -605,7 +601,7 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
ali_init_chipset(pdev);

isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
- if (isa_bridge && rev >= 0x20 && rev < 0xC2) {
+ if (isa_bridge && pdev->revision >= 0x20 && pdev->revision < 0xC2) {
/* Are we paired with a UDMA capable chip */
pci_read_config_byte(isa_bridge, 0x5E, &tmp);
if ((tmp & 0x1E) == 0x12)
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index b439351..fcc7efd 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -623,17 +623,15 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
const struct ata_port_info *ppi[] = { NULL, NULL };
static int printed_version;
int type = id->driver_data;
- u8 rev;
u8 fifo;

if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
pci_read_config_byte(pdev, 0x41, &fifo);

/* Check for AMD7409 without swdma errata and if found adjust type */
- if (type == 1 && rev > 0x7)
+ if (type == 1 && pdev->revision > 0x7)
type = 2;

/* Check for AMD7411 */
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index b3456d7..89fb65c 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -592,8 +592,7 @@ static int it821x_port_start(struct ata_port *ap)
itdev->want[1][1] = ATA_ANY;
itdev->last_device = -1;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &conf);
- if (conf == 0x10) {
+ if (pdev->revision == 0x11) {
itdev->timing10 = 1;
/* Need to disable ATAPI DMA for this case */
if (!itdev->smart)
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index 1e8f421..22c42a3 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -410,11 +410,8 @@ static int serverworks_fixup_osb4(struct pci_dev *pdev)

static int serverworks_fixup_csb(struct pci_dev *pdev)
{
- u8 rev;
u8 btr;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
-
/* Third Channel Test */
if (!(PCI_FUNC(pdev->devfn) & 1)) {
struct pci_dev * findev = NULL;
@@ -456,7 +453,7 @@ static int serverworks_fixup_csb(struct pci_dev *pdev)
if (!(PCI_FUNC(pdev->devfn) & 1))
btr |= 0x2;
else
- btr |= (rev >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
+ btr |= (pdev->revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
pci_write_config_byte(pdev, 0x5A, btr);

return btr;
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index ec3ae93..ba016ce 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -887,9 +887,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
if (host != NULL) {
chipset = sets; /* Match found */
if (sets->device == 0x630) { /* SIS630 */
- u8 host_rev;
- pci_read_config_byte(host, PCI_REVISION_ID, &host_rev);
- if (host_rev >= 0x30) /* 630 ET */
+ if (host->revision >= 0x30) /* 630 ET */
chipset = &sis100_early;
}
break;
@@ -933,7 +931,6 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
u16 trueid;
u8 prefctl;
u8 idecfg;
- u8 sbrev;

/* Try the second unmasking technique */
pci_read_config_byte(pdev, 0x4a, &idecfg);
@@ -946,11 +943,10 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
lpc_bridge = pci_get_slot(pdev->bus, 0x10); /* Bus 0 Dev 2 Fn 0 */
if (lpc_bridge == NULL)
break;
- pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev);
pci_read_config_byte(pdev, 0x49, &prefctl);
pci_dev_put(lpc_bridge);

- if (sbrev == 0x10 && (prefctl & 0x80)) {
+ if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) {
chipset = &sis133_early;
break;
}
diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
index e5aaec4..e4c562c 100644
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -270,7 +270,6 @@ static struct ata_port_operations sl82c105_port_ops = {
static int sl82c105_bridge_revision(struct pci_dev *pdev)
{
struct pci_dev *bridge;
- u8 rev;

/*
* The bridge should be part of the same device, but function 0.
@@ -292,10 +291,8 @@ static int sl82c105_bridge_revision(struct pci_dev *pdev)
/*
* We need to find function 0's revision, not function 1
*/
- pci_read_config_byte(bridge, PCI_REVISION_ID, &rev);
-
pci_dev_put(bridge);
- return rev;
+ return bridge->revision;
}


diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 63eca29..5600690 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -506,7 +506,6 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
struct pci_dev *isa = NULL;
const struct via_isa_bridge *config;
static int printed_version;
- u8 t;
u8 enable;
u32 timing;

@@ -520,9 +519,8 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
!!(config->flags & VIA_BAD_ID),
config->id, NULL))) {

- pci_read_config_byte(isa, PCI_REVISION_ID, &t);
- if (t >= config->rev_min &&
- t <= config->rev_max)
+ if (isa->revision >= config->rev_min &&
+ isa->revision <= config->rev_max)
break;
pci_dev_put(isa);
}
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index c957e6e..c39361e 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1570,12 +1570,9 @@ static void mv5_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val)

static void mv5_reset_bus(struct pci_dev *pdev, void __iomem *mmio)
{
- u8 rev_id;
int early_5080;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
-
- early_5080 = (pdev->device == 0x5080) && (rev_id == 0);
+ early_5080 = (pdev->device == 0x5080) && (pdev->revision == 0);

if (!early_5080) {
u32 tmp = readl(mmio + MV_PCI_EXP_ROM_BAR_CTL);
@@ -2136,17 +2133,14 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
struct mv_host_priv *hpriv = host->private_data;
- u8 rev_id;
u32 hp_flags = hpriv->hp_flags;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
-
switch(board_idx) {
case chip_5080:
hpriv->ops = &mv5xxx_ops;
hp_flags |= MV_HP_50XX;

- switch (rev_id) {
+ switch (pdev->revision) {
case 0x1:
hp_flags |= MV_HP_ERRATA_50XXB0;
break;
@@ -2166,7 +2160,7 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
hpriv->ops = &mv5xxx_ops;
hp_flags |= MV_HP_50XX;

- switch (rev_id) {
+ switch (pdev->revision) {
case 0x0:
hp_flags |= MV_HP_ERRATA_50XXB0;
break;
@@ -2185,7 +2179,7 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
case chip_608x:
hpriv->ops = &mv6xxx_ops;

- switch (rev_id) {
+ switch (pdev->revision) {
case 0x7:
hp_flags |= MV_HP_ERRATA_60X1B2;
break;
@@ -2206,7 +2200,7 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)

hp_flags |= MV_HP_GEN_IIE;

- switch (rev_id) {
+ switch (pdev->revision) {
case 0x0:
hp_flags |= MV_HP_ERRATA_XX42A0;
break;
@@ -2334,14 +2328,12 @@ static void mv_print_info(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
struct mv_host_priv *hpriv = host->private_data;
- u8 rev_id, scc;
+ u8 scc;
const char *scc_s;

/* Use this to determine the HW stepping of the chip so we know
* what errata to workaround
*/
- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
-
pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &scc);
if (scc == 0)
scc_s = "SCSI";
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index 0d3a38b..77637e7 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -1704,7 +1704,6 @@ static int __devinit eni_do_init(struct atm_dev *dev)
struct pci_dev *pci_dev;
unsigned long real_base;
void __iomem *base;
- unsigned char revision;
int error,i,last;

DPRINTK(">eni_init\n");
@@ -1715,12 +1714,6 @@ static int __devinit eni_do_init(struct atm_dev *dev)
pci_dev = eni_dev->pci_dev;
real_base = pci_resource_start(pci_dev, 0);
eni_dev->irq = pci_dev->irq;
- error = pci_read_config_byte(pci_dev,PCI_REVISION_ID,&revision);
- if (error) {
- printk(KERN_ERR DEV_LABEL "(itf %d): init error 0x%02x\n",
- dev->number,error);
- return -EINVAL;
- }
if ((error = pci_write_config_word(pci_dev,PCI_COMMAND,
PCI_COMMAND_MEMORY |
(eni_dev->asic ? PCI_COMMAND_PARITY | PCI_COMMAND_SERR : 0)))) {
@@ -1729,7 +1722,7 @@ static int __devinit eni_do_init(struct atm_dev *dev)
return -EIO;
}
printk(KERN_NOTICE DEV_LABEL "(itf %d): rev.%d,base=0x%lx,irq=%d,",
- dev->number,revision,real_base,eni_dev->irq);
+ dev->number,pci_dev->revision,real_base,eni_dev->irq);
if (!(base = ioremap_nocache(real_base,MAP_MAX_SIZE))) {
printk("\n");
printk(KERN_ERR DEV_LABEL "(itf %d): can't set up page "
diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 3800bc0..8f995ce 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -3679,7 +3679,6 @@ idt77252_init_one(struct pci_dev *pcidev, const struct pci_device_id *id)
unsigned long membase, srambase;
struct idt77252_dev *card;
struct atm_dev *dev;
- ushort revision = 0;
int i, err;


@@ -3688,19 +3687,13 @@ idt77252_init_one(struct pci_dev *pcidev, const struct pci_device_id *id)
return err;
}

- if (pci_read_config_word(pcidev, PCI_REVISION_ID, &revision)) {
- printk("idt77252-%d: can't read PCI_REVISION_ID\n", index);
- err = -ENODEV;
- goto err_out_disable_pdev;
- }
-
card = kzalloc(sizeof(struct idt77252_dev), GFP_KERNEL);
if (!card) {
printk("idt77252-%d: can't allocate private data\n", index);
err = -ENOMEM;
goto err_out_disable_pdev;
}
- card->revision = revision;
+ card->revision = pcidev->revision;
card->index = index;
card->pcidev = pcidev;
sprintf(card->name, "idt77252-%d", card->index);
@@ -3762,8 +3755,8 @@ idt77252_init_one(struct pci_dev *pcidev, const struct pci_device_id *id)
}

printk("%s: ABR SAR (Rev %c): MEM %08lx SRAM %08lx [%u KB]\n",
- card->name, ((revision > 1) && (revision < 25)) ?
- 'A' + revision - 1 : '?', membase, srambase,
+ card->name, ((card->revision > 1) && (card->revision < 25)) ?
+ 'A' + card->revision - 1 : '?', membase, srambase,
card->sramsize / 1024);

if (init_card(dev)) {
diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index bb7ef57..f447397 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -2290,7 +2290,6 @@ static int __devinit ia_init(struct atm_dev *dev)
unsigned long real_base;
void __iomem *base;
unsigned short command;
- unsigned char revision;
int error, i;

/* The device has been identified and registered. Now we read
@@ -2305,16 +2304,14 @@ static int __devinit ia_init(struct atm_dev *dev)
real_base = pci_resource_start (iadev->pci, 0);
iadev->irq = iadev->pci->irq;

- if ((error = pci_read_config_word(iadev->pci, PCI_COMMAND,&command))
- || (error = pci_read_config_byte(iadev->pci,
- PCI_REVISION_ID,&revision)))
+ if (error = pci_read_config_word(iadev->pci, PCI_COMMAND,&command))
{
printk(KERN_ERR DEV_LABEL "(itf %d): init error 0x%x\n",
dev->number,error);
return -EINVAL;
}
IF_INIT(printk(DEV_LABEL "(itf %d): rev.%d,realbase=0x%lx,irq=%d\n",
- dev->number, revision, real_base, iadev->irq);)
+ dev->number, iadev->pci->revision, real_base, iadev->irq);)

/* find mapping size of board */

@@ -2353,7 +2350,7 @@ static int __devinit ia_init(struct atm_dev *dev)
return error;
}
IF_INIT(printk(DEV_LABEL " (itf %d): rev.%d,base=%p,irq=%d\n",
- dev->number, revision, base, iadev->irq);)
+ dev->number, iadev->pci->revision, base, iadev->irq);)

/* filling the iphase dev structure */
iadev->mem = iadev->pci_map_size /2;
diff --git a/drivers/atm/lanai.c b/drivers/atm/lanai.c
index 09f477d..203c703 100644
--- a/drivers/atm/lanai.c
+++ b/drivers/atm/lanai.c
@@ -293,7 +293,6 @@ struct lanai_dev {
struct atm_vcc *cbrvcc;
int number;
int board_rev;
- u8 pci_revision;
/* TODO - look at race conditions with maintence of conf1/conf2 */
/* TODO - transmit locking: should we use _irq not _irqsave? */
/* TODO - organize above in some rational fashion (see <asm/cache.h>) */
@@ -1969,14 +1968,6 @@ static int __devinit lanai_pci_start(struct lanai_dev *lanai)
"(itf %d): No suitable DMA available.\n", lanai->number);
return -EBUSY;
}
- /* Get the pci revision byte */
- result = pci_read_config_byte(pci, PCI_REVISION_ID,
- &lanai->pci_revision);
- if (result != PCIBIOS_SUCCESSFUL) {
- printk(KERN_ERR DEV_LABEL "(itf %d): can't read "
- "PCI_REVISION_ID: %d\n", lanai->number, result);
- return -EINVAL;
- }
result = pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &w);
if (result != PCIBIOS_SUCCESSFUL) {
printk(KERN_ERR DEV_LABEL "(itf %d): can't read "
@@ -2254,7 +2245,7 @@ static int __devinit lanai_dev_open(struct atm_dev *atmdev)
lanai_timed_poll_start(lanai);
printk(KERN_NOTICE DEV_LABEL "(itf %d): rev.%d, base=0x%lx, irq=%u "
"(%02X-%02X-%02X-%02X-%02X-%02X)\n", lanai->number,
- (int) lanai->pci_revision, (unsigned long) lanai->base,
+ (int) lanai->pci->revision, (unsigned long) lanai->base,
lanai->pci->irq,
atmdev->esi[0], atmdev->esi[1], atmdev->esi[2],
atmdev->esi[3], atmdev->esi[4], atmdev->esi[5]);
@@ -2491,7 +2482,7 @@ static int lanai_proc_read(struct atm_dev *atmdev, loff_t *pos, char *page)
(unsigned int) lanai->magicno, lanai->num_vci);
if (left-- == 0)
return sprintf(page, "revision: board=%d, pci_if=%d\n",
- lanai->board_rev, (int) lanai->pci_revision);
+ lanai->board_rev, (int) lanai->pci->revision);
if (left-- == 0)
return sprintf(page, "EEPROM ESI: "
"%02X:%02X:%02X:%02X:%02X:%02X\n",
diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
index 2ad2527..020a87a 100644
--- a/drivers/atm/zatm.c
+++ b/drivers/atm/zatm.c
@@ -1182,7 +1182,6 @@ static int __devinit zatm_init(struct atm_dev *dev)
struct zatm_dev *zatm_dev;
struct pci_dev *pci_dev;
unsigned short command;
- unsigned char revision;
int error,i,last;
unsigned long t0,t1,t2;

@@ -1192,8 +1191,7 @@ static int __devinit zatm_init(struct atm_dev *dev)
pci_dev = zatm_dev->pci_dev;
zatm_dev->base = pci_resource_start(pci_dev, 0);
zatm_dev->irq = pci_dev->irq;
- if ((error = pci_read_config_word(pci_dev,PCI_COMMAND,&command)) ||
- (error = pci_read_config_byte(pci_dev,PCI_REVISION_ID,&revision))) {
+ if ((error = pci_read_config_word(pci_dev,PCI_COMMAND,&command))) {
printk(KERN_ERR DEV_LABEL "(itf %d): init error 0x%02x\n",
dev->number,error);
return -EINVAL;
@@ -1206,7 +1204,7 @@ static int __devinit zatm_init(struct atm_dev *dev)
}
eprom_get_esi(dev);
printk(KERN_NOTICE DEV_LABEL "(itf %d): rev.%d,base=0x%x,irq=%d,",
- dev->number,revision,zatm_dev->base,zatm_dev->irq);
+ dev->number,pci_dev->revision,zatm_dev->base,zatm_dev->irq);
/* reset uPD98401 */
zout(0,SWR);
while (!(zin(GSR) & uPD98401_INT_IND));
diff --git a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c
index e6c534e..df0ddf1 100644
--- a/drivers/char/agp/amd-k7-agp.c
+++ b/drivers/char/agp/amd-k7-agp.c
@@ -462,9 +462,7 @@ static int __devinit agp_amdk7_probe(struct pci_dev *pdev,
* erratum 46: Setup violation on AGP SBA pins - Disable side band addressing.
* With this lot disabled, we should prevent lockups. */
if (agp_bridge->dev->device == PCI_DEVICE_ID_AMD_FE_GATE_700E) {
- u8 revision=0;
- pci_read_config_byte(pdev, PCI_REVISION_ID, &revision);
- if (revision == 0x10 || revision == 0x11) {
+ if (pdev->revision == 0x10 || pdev->revision == 0x11) {
agp_bridge->flags = AGP_ERRATA_FASTWRITES;
agp_bridge->flags |= AGP_ERRATA_SBA;
agp_bridge->flags |= AGP_ERRATA_1X;
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 801abdd..d95662e 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -367,10 +367,8 @@ static __devinit int cache_nbs (struct pci_dev *pdev, u32 cap_ptr)
static void __devinit amd8151_init(struct pci_dev *pdev, struct agp_bridge_data *bridge)
{
char *revstring;
- u8 rev_id;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
- switch (rev_id) {
+ switch (pdev->revision) {
case 0x01: revstring="A0"; break;
case 0x02: revstring="A1"; break;
case 0x11: revstring="B0"; break;
@@ -386,7 +384,7 @@ static void __devinit amd8151_init(struct pci_dev *pdev, struct agp_bridge_data
* Work around errata.
* Chips before B2 stepping incorrectly reporting v3.5
*/
- if (rev_id < 0x13) {
+ if (pdev->revision < 0x13) {
printk (KERN_INFO PFX "Correcting AGP revision (reports 3.5, is really 3.0)\n");
bridge->major_version = 3;
bridge->minor_version = 0;
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index 5cfcff5..e783dbf 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -105,14 +105,11 @@ static inline void acpi_pm_need_workaround(void)
*/
static void __devinit acpi_pm_check_blacklist(struct pci_dev *dev)
{
- u8 rev;
-
if (acpi_pm_good)
return;

- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
/* the bug has been fixed in PIIX4M */
- if (rev < 3) {
+ if (dev->revision < 3) {
printk(KERN_WARNING "* Found PM-Timer Bug on the chipset."
" Due to workarounds for a bug,\n"
"* this clock source is slow. Consider trying"
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 7a2bc06..1d76b9e 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -397,8 +397,7 @@ found:
case PCI_DEVICE_ID_VIA_82C686_4:
/* The VT82C686B (rev 0x40) does support I2C block
transactions, but the VT82C686A (rev 0x30) doesn't */
- if (!pci_read_config_byte(pdev, PCI_REVISION_ID, &temp)
- && temp >= 0x40)
+ if (pdev->revision >= 0x40)
vt596_features |= FEATURE_I2CBLOCK;
break;
}
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 27525ec..88ba952 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -506,7 +506,7 @@ static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const c
u8 tmpbyte;
struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0));

- pci_read_config_byte(dev, PCI_REVISION_ID, &m5229_revision);
+ m5229_revision = dev->revision;

isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);

diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index becb1a5..d52ae29 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -124,8 +124,7 @@ static int amd74xx_get_info(char *buffer, char **addr, off_t offset, int count)
amd_print("Driver Version: 2.13");
amd_print("South Bridge: %s", pci_name(bmide_dev));

- pci_read_config_byte(dev, PCI_REVISION_ID, &t);
- amd_print("Revision: IDE %#x", t);
+ amd_print("Revision: IDE %#x", dev->revision);
amd_print("Highest DMA rate: %s", amd_dma[amd_config->flags & AMD_UDMA]);

amd_print("BM-DMA base: %#lx", amd_base);
@@ -325,8 +324,7 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, const ch
*/

if (amd_config->flags & AMD_CHECK_SWDMA) {
- pci_read_config_byte(dev, PCI_REVISION_ID, &t);
- if (t <= 7)
+ if (dev->revision <= 7)
amd_config->flags |= AMD_BAD_SWDMA;
}

@@ -394,9 +392,8 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, const ch
* Print the boot message.
*/

- pci_read_config_byte(dev, PCI_REVISION_ID, &t);
printk(KERN_INFO "%s: %s (rev %02x) %s controller\n",
- amd_chipset->name, pci_name(dev), t, amd_dma[amd_config->flags & AMD_UDMA]);
+ amd_chipset->name, pci_name(dev), dev->revision, amd_dma[amd_config->flags & AMD_UDMA]);

/*
* Register /proc/ide/amd74xx entry
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 7c57dc6..d0b6805 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -91,7 +91,6 @@ 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 = 1, reg51 = 1, reg57 = 0, reg71 = 0; /* extra */
- u8 rev = 0;

p += sprintf(p, "\nController: %d\n", index);
p += sprintf(p, "PCI-%x Chipset.\n", dev->device);
@@ -106,9 +105,8 @@ static char * print_cmd64x_get_info (char *buf, struct pci_dev *dev, int index)
(void) pci_read_config_byte(dev, UDIDETCR1, &reg7b);

/* PCI0643/6 originally didn't have the primary channel enable bit */
- (void) pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
if ((dev->device == PCI_DEVICE_ID_CMD_643) ||
- (dev->device == PCI_DEVICE_ID_CMD_646 && rev < 3))
+ (dev->device == PCI_DEVICE_ID_CMD_646 && dev->revision < 3))
reg51 |= CNTRL_ENA_1ST;

p += sprintf(p, "---------------- Primary Channel "
@@ -640,14 +638,11 @@ static int __devinit init_setup_cmd64x(struct pci_dev *dev, ide_pci_device_t *d)

static int __devinit init_setup_cmd646(struct pci_dev *dev, ide_pci_device_t *d)
{
- u8 rev = 0;
-
/*
* The original PCI0646 didn't have the primary channel enable bit,
* it appeared starting with PCI0646U (i.e. revision ID 3).
*/
- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
- if (rev < 3)
+ if (dev->revision < 3)
d->enablebits[0].reg = 0;

return ide_setup_pci_device(dev, d);
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index fcbc560..1dadac6 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -1424,11 +1424,9 @@ static int __devinit init_setup_hpt372n(struct pci_dev *dev, ide_pci_device_t *d
static int __devinit init_setup_hpt371(struct pci_dev *dev, ide_pci_device_t *d)
{
struct hpt_info *info;
- u8 rev = 0, mcr1 = 0;
+ u8 mcr1 = 0;

- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
-
- if (rev > 1) {
+ if (dev->revision > 1) {
d->name = "HPT371N";

info = &hpt371n;
@@ -1453,11 +1451,8 @@ static int __devinit init_setup_hpt371(struct pci_dev *dev, ide_pci_device_t *d)
static int __devinit init_setup_hpt372a(struct pci_dev *dev, ide_pci_device_t *d)
{
struct hpt_info *info;
- u8 rev = 0;
-
- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);

- if (rev > 1) {
+ if (dev->revision > 1) {
d->name = "HPT372N";

info = &hpt372n;
@@ -1471,11 +1466,8 @@ static int __devinit init_setup_hpt372a(struct pci_dev *dev, ide_pci_device_t *d
static int __devinit init_setup_hpt302(struct pci_dev *dev, ide_pci_device_t *d)
{
struct hpt_info *info;
- u8 rev = 0;
-
- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);

- if (rev > 1) {
+ if (dev->revision > 1) {
d->name = "HPT302N";

info = &hpt302n;
@@ -1500,9 +1492,7 @@ static int __devinit init_setup_hpt366(struct pci_dev *dev, ide_pci_device_t *d)
if (PCI_FUNC(dev->devfn) & 1)
return -ENODEV;

- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
-
- if (rev > 6)
+ if (dev->revision > 6)
rev = 6;

d->name = chipset_names[rev];
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index 8b219dd..34f7116 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -541,18 +541,16 @@ static void __devinit piix_check_450nx(void)
{
struct pci_dev *pdev = NULL;
u16 cfg;
- u8 rev;
while((pdev=pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, pdev))!=NULL)
{
/* Look for 450NX PXB. Check for problem configurations
A PCI quirk checks bit 6 already */
- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
pci_read_config_word(pdev, 0x41, &cfg);
/* Only on the original revision: IDE DMA can hang */
- if(rev == 0x00)
+ if (pdev->revision == 0x00)
no_piix_dma = 1;
/* On all revisions below 5 PXB bus lock must be disabled for IDE */
- else if(cfg & (1<<14) && rev < 5)
+ else if (cfg & (1<<14) && pdev->revision < 5)
no_piix_dma = 2;
}
if(no_piix_dma)
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index 47bcd91..76e10dd 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -55,7 +55,6 @@ static const char *svwks_bad_ata100[] = {
NULL
};

-static u8 svwks_revision = 0;
static struct pci_dev *isa_dev;

static int check_in_drive_lists (ide_drive_t *drive, const char **list)
@@ -71,9 +70,6 @@ static u8 svwks_udma_filter(ide_drive_t *drive)
struct pci_dev *dev = HWIF(drive)->pci_dev;
u8 mask = 0;

- if (!svwks_revision)
- pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision);
-
if (dev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE)
return 0x1f;
if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
@@ -88,9 +84,9 @@ static u8 svwks_udma_filter(ide_drive_t *drive)
return 0;
/* Check the OSB4 DMA33 enable bit */
return ((reg & 0x00004000) == 0x00004000) ? 0x07 : 0;
- } else if (svwks_revision < SVWKS_CSB5_REVISION_NEW) {
+ } else if (dev->revision < SVWKS_CSB5_REVISION_NEW) {
return 0x07;
- } else if (svwks_revision >= SVWKS_CSB5_REVISION_NEW) {
+ } else if (dev->revision >= SVWKS_CSB5_REVISION_NEW) {
u8 btr = 0, mode;
pci_read_config_byte(dev, 0x5A, &btr);
mode = btr & 0x3;
@@ -294,9 +290,6 @@ static unsigned int __devinit init_chipset_svwks (struct pci_dev *dev, const cha
unsigned int reg;
u8 btr;

- /* save revision id to determine DMA capability */
- pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision);
-
/* force Master Latency Timer value to 64 PCICLKs */
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x40);

@@ -375,7 +368,7 @@ static unsigned int __devinit init_chipset_svwks (struct pci_dev *dev, const cha
if (!(PCI_FUNC(dev->devfn) & 1))
btr |= 0x2;
else
- btr |= (svwks_revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
+ btr |= (dev->revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
pci_write_config_byte(dev, 0x5A, btr);
}
/* Setup HT1000 SouthBridge Controller - Single Channel Only */
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index bb6cc4a..aa58b47 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -659,9 +659,7 @@ static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const c

/* Special case for SiS630 : 630S/ET is ATA_100a */
if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) {
- u8 hostrev;
- pci_read_config_byte(host, PCI_REVISION_ID, &hostrev);
- if (hostrev >= 0x30)
+ if (host->revision >= 0x30)
chipset_family = ATA_100a;
}
pci_dev_put(host);
@@ -702,7 +700,6 @@ static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const c
u16 trueid;
u8 prefctl;
u8 idecfg;
- u8 sbrev;

pci_read_config_byte(dev, 0x4a, &idecfg);
pci_write_config_byte(dev, 0x4a, idecfg | 0x10);
@@ -712,11 +709,10 @@ static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const c
if (trueid == 0x5517) { /* SiS 961/961B */

lpc_bridge = pci_get_slot(dev->bus, 0x10); /* Bus 0, Dev 2, Fn 0 */
- pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev);
pci_read_config_byte(dev, 0x49, &prefctl);
pci_dev_put(lpc_bridge);

- if (sbrev == 0x10 && (prefctl & 0x80)) {
+ if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) {
printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n");
chipset_family = ATA_133a;
} else {
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
index 7c383d9..d3ff59e 100644
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -344,7 +344,6 @@ static void sl82c105_tune_drive(ide_drive_t *drive, u8 pio)
static unsigned int sl82c105_bridge_revision(struct pci_dev *dev)
{
struct pci_dev *bridge;
- u8 rev;

/*
* The bridge should be part of the same device, but function 0.
@@ -366,10 +365,9 @@ static unsigned int sl82c105_bridge_revision(struct pci_dev *dev)
/*
* We need to find function 0's revision, not function 1
*/
- pci_read_config_byte(bridge, PCI_REVISION_ID, &rev);
pci_dev_put(bridge);

- return rev;
+ return bridge->revision;
}

/*
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index a508550..0ea961b 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -248,16 +248,14 @@ static int via82cxxx_ide_dma_check (ide_drive_t *drive)
static struct via_isa_bridge *via_config_find(struct pci_dev **isa)
{
struct via_isa_bridge *via_config;
- u8 t;

for (via_config = via_isa_bridges; via_config->id; via_config++)
if ((*isa = pci_get_device(PCI_VENDOR_ID_VIA +
!!(via_config->flags & VIA_BAD_ID),
via_config->id, NULL))) {

- pci_read_config_byte(*isa, PCI_REVISION_ID, &t);
- if (t >= via_config->rev_min &&
- t <= via_config->rev_max)
+ if ((*isa)->revision >= via_config->rev_min &&
+ (*isa)->revision <= via_config->rev_max)
break;
pci_dev_put(*isa);
}
@@ -415,10 +413,9 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const
* Print the boot message.
*/

- pci_read_config_byte(isa, PCI_REVISION_ID, &t);
printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %s "
"controller on pci%s\n",
- via_config->name, t,
+ via_config->name, isa->revision,
via_dma[via_config->flags & VIA_UDMA],
pci_name(dev));

diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index e3a2232..834e86f 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -270,7 +270,6 @@ static int __devinit ipath_init_one(struct pci_dev *pdev,
struct ipath_devdata *dd;
unsigned long long addr;
u32 bar0 = 0, bar1 = 0;
- u8 rev;

dd = ipath_alloc_devdata(pdev);
if (IS_ERR(dd)) {
@@ -432,13 +431,7 @@ static int __devinit ipath_init_one(struct pci_dev *pdev,
dd->ipath_deviceid = ent->device; /* save for later use */
dd->ipath_vendorid = ent->vendor;

- ret = pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
- if (ret) {
- ipath_dev_err(dd, "Failed to read PCI revision ID unit "
- "%u: err %d\n", dd->ipath_unit, -ret);
- goto bail_regions; /* shouldn't ever happen */
- }
- dd->ipath_pcirev = rev;
+ dd->ipath_pcirev = pdev->revision;

#if defined(__powerpc__)
/* There isn't a generic way to specify writethrough mappings */
diff --git a/drivers/isdn/hisax/bkm_a8.c b/drivers/isdn/hisax/bkm_a8.c
index 3403106..6339bb4 100644
--- a/drivers/isdn/hisax/bkm_a8.c
+++ b/drivers/isdn/hisax/bkm_a8.c
@@ -287,7 +287,6 @@ setup_sct_quadro(struct IsdnCard *card)
#ifdef CONFIG_PCI
struct IsdnCardState *cs = card->cs;
char tmp[64];
- u_char pci_rev_id;
u_int found = 0;
u_int pci_ioaddr1, pci_ioaddr2, pci_ioaddr3, pci_ioaddr4, pci_ioaddr5;

@@ -335,8 +334,7 @@ setup_sct_quadro(struct IsdnCard *card)
}
#ifdef ATTEMPT_PCI_REMAPPING
/* HACK: PLX revision 1 bug: PLX address bit 7 must not be set */
- pci_read_config_byte(dev_a8, PCI_REVISION_ID, &pci_rev_id);
- if ((pci_ioaddr1 & 0x80) && (pci_rev_id == 1)) {
+ if ((pci_ioaddr1 & 0x80) && (dev_a8->revision == 1)) {
printk(KERN_WARNING "HiSax: %s (%s): PLX rev 1, remapping required!\n",
CardType[card->typ],
sct_quadro_subtypes[cs->subtyp]);
diff --git a/drivers/media/radio/radio-gemtek-pci.c b/drivers/media/radio/radio-gemtek-pci.c
index fdf5d6e..5e6f17d 100644
--- a/drivers/media/radio/radio-gemtek-pci.c
+++ b/drivers/media/radio/radio-gemtek-pci.c
@@ -94,7 +94,6 @@ struct gemtek_pci_card {

u32 iobase;
u32 length;
- u8 chiprev;
u16 model;

u32 current_frequency;
@@ -415,7 +414,6 @@ static int __devinit gemtek_pci_probe( struct pci_dev *pci_dev, const struct pci
goto err_pci;
}

- pci_read_config_byte( pci_dev, PCI_REVISION_ID, &card->chiprev );
pci_read_config_word( pci_dev, PCI_SUBSYSTEM_ID, &card->model );

pci_set_drvdata( pci_dev, card );
@@ -436,7 +434,7 @@ static int __devinit gemtek_pci_probe( struct pci_dev *pci_dev, const struct pci
gemtek_pci_mute( card );

printk( KERN_INFO "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
- card->chiprev, card->iobase, card->iobase + card->length - 1 );
+ pci_dev->revision, card->iobase, card->iobase + card->length - 1 );

return 0;

diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c
index 664aba8..7533fc2 100644
--- a/drivers/media/video/meye.c
+++ b/drivers/media/video/meye.c
@@ -1809,7 +1809,6 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
{
int ret = -EBUSY;
unsigned long mchip_adr;
- u8 revision;

if (meye.mchip_dev != NULL) {
printk(KERN_ERR "meye: only one device allowed!\n");
@@ -1885,7 +1884,6 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
goto outreqirq;
}

- pci_read_config_byte(meye.mchip_dev, PCI_REVISION_ID, &revision);
pci_write_config_byte(meye.mchip_dev, PCI_CACHE_LINE_SIZE, 8);
pci_write_config_byte(meye.mchip_dev, PCI_LATENCY_TIMER, 64);

@@ -1939,7 +1937,7 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
printk(KERN_INFO "meye: Motion Eye Camera Driver v%s.\n",
MEYE_DRIVER_VERSION);
printk(KERN_INFO "meye: mchip KL5A72002 rev. %d, base %lx, irq %d\n",
- revision, mchip_adr, meye.mchip_irq);
+ meye.mchip_dev->revision, mchip_adr, meye.mchip_irq);

return 0;

diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index a804965..342fd07 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -1804,7 +1804,6 @@ static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
void __iomem *regs;
resource_size_t pciaddr;
unsigned int addr_len, i, pci_using_dac;
- u8 pci_rev;

#ifndef MODULE
static int version_printed;
@@ -1812,13 +1811,11 @@ static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
printk("%s", version);
#endif

- pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev);
-
if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
- pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pci_rev < 0x20) {
+ pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision < 0x20) {
dev_err(&pdev->dev,
"This (id %04x:%04x rev %02x) is not an 8139C+ compatible chip\n",
- pdev->vendor, pdev->device, pci_rev);
+ pdev->vendor, pdev->device, pdev->revision);
dev_err(&pdev->dev, "Try the \"8139too\" driver instead.\n");
return -ENODEV;
}
diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index a844b1f..77457c7 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -931,7 +931,6 @@ static int __devinit rtl8139_init_one (struct pci_dev *pdev,
int i, addr_len, option;
void __iomem *ioaddr;
static int board_idx = -1;
- u8 pci_rev;

assert (pdev != NULL);
assert (ent != NULL);
@@ -949,13 +948,11 @@ static int __devinit rtl8139_init_one (struct pci_dev *pdev,
}
#endif

- pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev);
-
if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
- pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pci_rev >= 0x20) {
+ pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pdev->revision >= 0x20) {
dev_info(&pdev->dev,
"This (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n",
- pdev->vendor, pdev->device, pci_rev);
+ pdev->vendor, pdev->device, pdev->revision);
dev_info(&pdev->dev,
"Use the \"8139cp\" driver for improved performance and stability.\n");
}
diff --git a/drivers/net/atl1/atl1.h b/drivers/net/atl1/atl1.h
index b1c6034..df4c1a0 100644
--- a/drivers/net/atl1/atl1.h
+++ b/drivers/net/atl1/atl1.h
@@ -210,7 +210,6 @@ struct atl1_hw {
u16 phy_spd_default;

u16 dev_rev;
- u8 revision_id;

/* spi flash */
u8 flash_vendor;
diff --git a/drivers/net/atl1/atl1_main.c b/drivers/net/atl1/atl1_main.c
index 6862c11..550635f 100644
--- a/drivers/net/atl1/atl1_main.c
+++ b/drivers/net/atl1/atl1_main.c
@@ -118,10 +118,6 @@ static int __devinit atl1_sw_init(struct atl1_adapter *adapter)
{
struct atl1_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
- struct pci_dev *pdev = adapter->pdev;
-
- /* PCI config space info */
- pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);

hw->max_frame_size = netdev->mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index da7c3b0..1fa25c9 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -6330,10 +6330,9 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
while ((amd_8132 = pci_get_device(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_8132_BRIDGE,
amd_8132))) {
- u8 rev;

- pci_read_config_byte(amd_8132, PCI_REVISION_ID, &rev);
- if (rev >= 0x10 && rev <= 0x13) {
+ if (amd_8132->revision >= 0x10 &&
+ amd_8132->revision <= 0x13) {
disable_msi = 1;
pci_dev_put(amd_8132);
break;
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c
index 59b9943..805924f 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -3422,21 +3422,19 @@ done:
static void cas_check_pci_invariants(struct cas *cp)
{
struct pci_dev *pdev = cp->pdev;
- u8 rev;

cp->cas_flags = 0;
- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
if ((pdev->vendor == PCI_VENDOR_ID_SUN) &&
(pdev->device == PCI_DEVICE_ID_SUN_CASSINI)) {
- if (rev >= CAS_ID_REVPLUS)
+ if (pdev->revision >= CAS_ID_REVPLUS)
cp->cas_flags |= CAS_FLAG_REG_PLUS;
- if (rev < CAS_ID_REVPLUS02u)
+ if (pdev->revision < CAS_ID_REVPLUS02u)
cp->cas_flags |= CAS_FLAG_TARGET_ABORT;

/* Original Cassini supports HW CSUM, but it's not
* enabled by default as it can trigger TX hangs.
*/
- if (rev < CAS_ID_REV2)
+ if (pdev->revision < CAS_ID_REV2)
cp->cas_flags |= CAS_FLAG_NO_HW_CSUM;
} else {
/* Only sun has original cassini chips. */
diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c
index 74ec64a..fab4fc9 100644
--- a/drivers/net/dl2k.c
+++ b/drivers/net/dl2k.c
@@ -250,7 +250,6 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent)
np->an_enable = 1;
mii_set_media (dev);
}
- pci_read_config_byte(pdev, PCI_REVISION_ID, &np->pci_rev_id);

err = register_netdev (dev);
if (err)
@@ -879,7 +878,7 @@ receive_packet (struct net_device *dev)
skb->protocol = eth_type_trans (skb, dev);
#if 0
/* Checksum done by hw, but csum value unavailable. */
- if (np->pci_rev_id >= 0x0c &&
+ if (np->pdev->pci_rev_id >= 0x0c &&
!(frame_status & (TCPError | UDPError | IPError))) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
diff --git a/drivers/net/dl2k.h b/drivers/net/dl2k.h
index 814c449..e443065 100644
--- a/drivers/net/dl2k.h
+++ b/drivers/net/dl2k.h
@@ -668,7 +668,6 @@ struct netdev_private {
unsigned int rx_flow:1; /* Rx flow control enable */
unsigned int phy_media:1; /* 1: fiber, 0: copper */
unsigned int link_status:1; /* Current link status */
- unsigned char pci_rev_id; /* PCI revision ID */
struct netdev_desc *last_tx; /* Last Tx descriptor used. */
unsigned long cur_rx, old_rx; /* Producer/consumer ring indices */
unsigned long cur_tx, old_tx;
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 6169663..6ca0a08 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -576,7 +576,6 @@ struct nic {
u32 rx_tco_frames;
u32 rx_over_length_errors;

- u8 rev_id;
u16 leds;
u16 eeprom_wc;
u16 eeprom[256];
@@ -930,9 +929,8 @@ static void e100_get_defaults(struct nic *nic)
struct param_range rfds = { .min = 16, .max = 256, .count = 256 };
struct param_range cbs = { .min = 64, .max = 256, .count = 128 };

- pci_read_config_byte(nic->pdev, PCI_REVISION_ID, &nic->rev_id);
/* MAC type is encoded as rev ID; exception: ICH is treated as 82559 */
- nic->mac = (nic->flags & ich) ? mac_82559_D101M : nic->rev_id;
+ nic->mac = (nic->flags & ich) ? mac_82559_D101M : nic->pdev->revision;
if(nic->mac == mac_unknown)
nic->mac = mac_82557_D100_A;

@@ -1266,7 +1264,7 @@ static void e100_setup_ucode(struct nic *nic, struct cb *cb, struct sk_buff *skb
if (nic->flags & ich)
goto noloaducode;

- /* Search for ucode match against h/w rev_id */
+ /* Search for ucode match against h/w revision */
for (opts = ucode_opts; opts->mac; opts++) {
int i;
u32 *ucode = opts->ucode;
@@ -2178,7 +2176,7 @@ static void e100_get_regs(struct net_device *netdev,
u32 *buff = p;
int i;

- regs->version = (1 << 24) | nic->rev_id;
+ regs->version = (1 << 24) | nic->pdev->revision;
buff[0] = ioread8(&nic->csr->scb.cmd_hi) << 24 |
ioread8(&nic->csr->scb.cmd_lo) << 16 |
ioread16(&nic->csr->scb.status);
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index cf8af92..f48b659 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1266,8 +1266,7 @@ e1000_sw_init(struct e1000_adapter *adapter)
hw->device_id = pdev->device;
hw->subsystem_vendor_id = pdev->subsystem_vendor;
hw->subsystem_id = pdev->subsystem_device;
-
- pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
+ hw->revision_id = pdev->revision;

pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 32788ca..a3d3194 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -5082,15 +5082,13 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
np->wolenabled = 0;

if (id->driver_data & DEV_HAS_POWER_CNTRL) {
- u8 revision_id;
- pci_read_config_byte(pci_dev, PCI_REVISION_ID, &revision_id);

/* take phy and nic out of low power mode */
powerstate = readl(base + NvRegPowerState2);
powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK;
if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_12 ||
id->device == PCI_DEVICE_ID_NVIDIA_NVENET_13) &&
- revision_id >= 0xA3)
+ pci_dev->revision >= 0xA3)
powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3;
writel(powerstate, base + NvRegPowerState2);
}
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index c61181f..ffebe8b 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -54,8 +54,6 @@ static char netxen_nic_driver_string[] = "NetXen Network Driver version "
#define NETXEN_ADAPTER_UP_MAGIC 777
#define NETXEN_NIC_PEG_TUNE 0

-u8 nx_p2_id = NX_P2_C0;
-
#define DMA_32BIT_MASK 0x00000000ffffffffULL
#define DMA_35BIT_MASK 0x00000007ffffffffULL

@@ -210,8 +208,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_out_disable_pdev;

pci_set_master(pdev);
- pci_read_config_byte(pdev, PCI_REVISION_ID, &nx_p2_id);
- if (nx_p2_id == NX_P2_C1 &&
+ if (pdev->revision == NX_P2_C1 &&
(pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) &&
(pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) {
pci_using_dac = 1;
@@ -458,7 +455,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
adapter->ahw.pdev = pdev;
adapter->proc_cmd_buf_counter = 0;
- adapter->ahw.revision_id = nx_p2_id;
+ adapter->ahw.revision_id = pdev->revision;

/* make sure Window == 1 */
netxen_nic_pci_change_crbwindow(adapter, 1);
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index c6ba3de..cb01fd3 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -1128,7 +1128,7 @@ static int init_nic(struct s2io_nic *nic)
* SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
*/
if ((nic->device_type == XFRAME_I_DEVICE) &&
- (get_xena_rev_id(nic->pdev) < 4))
+ (nic->pdev->revision < 4))
writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable);

val64 = readq(&bar0->tx_fifo_partition_0);
@@ -1866,7 +1866,7 @@ static int verify_pcc_quiescent(struct s2io_nic *sp, int flag)
herc = (sp->device_type == XFRAME_II_DEVICE);

if (flag == FALSE) {
- if ((!herc && (get_xena_rev_id(sp->pdev) >= 4)) || herc) {
+ if ((!herc && (sp->pdev->revision >= 4)) || herc) {
if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE))
ret = 1;
} else {
@@ -1874,7 +1874,7 @@ static int verify_pcc_quiescent(struct s2io_nic *sp, int flag)
ret = 1;
}
} else {
- if ((!herc && (get_xena_rev_id(sp->pdev) >= 4)) || herc) {
+ if ((!herc && (sp->pdev->revision >= 4)) || herc) {
if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) ==
ADAPTER_STATUS_RMAC_PCC_IDLE))
ret = 1;
@@ -7052,23 +7052,6 @@ static void s2io_link(struct s2io_nic * sp, int link)
}

/**
- * get_xena_rev_id - to identify revision ID of xena.
- * @pdev : PCI Dev structure
- * Description:
- * Function to identify the Revision ID of xena.
- * Return value:
- * returns the revision ID of the device.
- */
-
-static int get_xena_rev_id(struct pci_dev *pdev)
-{
- u8 id = 0;
- int ret;
- ret = pci_read_config_byte(pdev, PCI_REVISION_ID, (u8 *) & id);
- return id;
-}
-
-/**
* s2io_init_pci -Initialization of PCI and PCI-X configuration registers .
* @sp : private member of the device structure, which is a pointer to the
* s2io_nic structure.
@@ -7526,7 +7509,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
s2io_vpd_read(sp);
DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2007 Neterion Inc.\n");
DBG_PRINT(ERR_DBG, "%s: Neterion %s (rev %d)\n",dev->name,
- sp->product_name, get_xena_rev_id(sp->pdev));
+ sp->product_name, pdev->revision);
DBG_PRINT(ERR_DBG, "%s: Driver version %s\n", dev->name,
s2io_driver_version);
DBG_PRINT(ERR_DBG, "%s: MAC ADDR: "
diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h
index 54baa0b..084a4c7 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -1034,7 +1034,6 @@ static void s2io_set_link(struct work_struct *work);
static int s2io_set_swapper(struct s2io_nic * sp);
static void s2io_card_down(struct s2io_nic *nic);
static int s2io_card_up(struct s2io_nic *nic);
-static int get_xena_rev_id(struct pci_dev *pdev);
static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit,
int bit_state);
static int s2io_add_isr(struct s2io_nic * sp);
diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index e1f912d..c9f7b7a 100644
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -397,7 +397,6 @@ struct netdev_private {
unsigned char phys[MII_CNT]; /* MII device addresses, only first one used. */
struct pci_dev *pci_dev;
void __iomem *base;
- unsigned char pci_rev_id;
};

/* The station address location in the EEPROM. */
@@ -544,8 +543,6 @@ static int __devinit sundance_probe1 (struct pci_dev *pdev,
dev->change_mtu = &change_mtu;
pci_set_drvdata(pdev, dev);

- pci_read_config_byte(pdev, PCI_REVISION_ID, &np->pci_rev_id);
-
i = register_netdev(dev);
if (i)
goto err_out_unmap_rx;
@@ -828,7 +825,7 @@ static int netdev_open(struct net_device *dev)
iowrite8(100, ioaddr + RxDMAPollPeriod);
iowrite8(127, ioaddr + TxDMAPollPeriod);
/* Fix DFE-580TX packet drop issue */
- if (np->pci_rev_id >= 0x14)
+ if (np->pci_dev->revision >= 0x14)
iowrite8(0x01, ioaddr + DebugCtrl1);
netif_start_queue(dev);

@@ -1194,7 +1191,7 @@ static irqreturn_t intr_handler(int irq, void *dev_instance)
hw_frame_id = ioread8(ioaddr + TxFrameId);
}

- if (np->pci_rev_id >= 0x14) {
+ if (np->pci_dev->revision >= 0x14) {
spin_lock(&np->lock);
for (; np->cur_tx - np->dirty_tx > 0; np->dirty_tx++) {
int entry = np->dirty_tx % TX_RING_SIZE;
diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index 51c3fe2..a6f0cd4 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -3095,12 +3095,8 @@ static int __devinit happy_meal_pci_probe(struct pci_dev *pdev,

#ifdef CONFIG_SPARC
hp->hm_revision = of_getintprop_default(dp, "hm-rev", 0xff);
- if (hp->hm_revision == 0xff) {
- unsigned char prev;
-
- pci_read_config_byte(pdev, PCI_REVISION_ID, &prev);
- hp->hm_revision = 0xc0 | (prev & 0x0f);
- }
+ if (hp->hm_revision == 0xff)
+ hp->hm_revision = 0xc0 | (pdev->revision & 0x0f);
#else
/* works with this on non-sparc hosts */
hp->hm_revision = 0x20;
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 2f31841..b148d57 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -10498,11 +10498,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
continue;
}
if (pci_id->rev != PCI_ANY_ID) {
- u8 rev;
-
- pci_read_config_byte(bridge, PCI_REVISION_ID,
- &rev);
- if (rev > pci_id->rev)
+ if (bridge->revision > pci_id->rev)
continue;
}
if (bridge->subordinate &&
diff --git a/drivers/net/tlan.c b/drivers/net/tlan.c
index 106dc1e..74eb121 100644
--- a/drivers/net/tlan.c
+++ b/drivers/net/tlan.c
@@ -533,7 +533,6 @@ static int __devinit TLan_probe1(struct pci_dev *pdev,

struct net_device *dev;
TLanPrivateInfo *priv;
- u8 pci_rev;
u16 device_id;
int reg, rc = -ENODEV;

@@ -577,8 +576,6 @@ static int __devinit TLan_probe1(struct pci_dev *pdev,
goto err_out_free_dev;
}

- pci_read_config_byte ( pdev, PCI_REVISION_ID, &pci_rev);
-
for ( reg= 0; reg <= 5; reg ++ ) {
if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
pci_io_base = pci_resource_start(pdev, reg);
@@ -595,7 +592,7 @@ static int __devinit TLan_probe1(struct pci_dev *pdev,

dev->base_addr = pci_io_base;
dev->irq = pdev->irq;
- priv->adapterRev = pci_rev;
+ priv->adapterRev = pdev->revision;
pci_set_master(pdev);
pci_set_drvdata(pdev, dev);

diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c
index 62143f9..7b96912 100644
--- a/drivers/net/tulip/de4x5.c
+++ b/drivers/net/tulip/de4x5.c
@@ -2134,7 +2134,7 @@ srom_search(struct net_device *dev, struct pci_dev *pdev)
u_short vendor, status;
u_int irq = 0, device;
u_long iobase = 0; /* Clear upper 32 bits in Alphas */
- int i, j, cfrv;
+ int i, j;
struct de4x5_private *lp = netdev_priv(dev);
struct list_head *walk;

@@ -2150,7 +2150,6 @@ srom_search(struct net_device *dev, struct pci_dev *pdev)

/* Get the chip configuration revision register */
pb = this_dev->bus->number;
- pci_read_config_dword(this_dev, PCI_REVISION_ID, &cfrv);

/* Set the device number information */
lp->device = PCI_SLOT(this_dev->devfn);
@@ -2158,7 +2157,8 @@ srom_search(struct net_device *dev, struct pci_dev *pdev)

/* Set the chipset information */
if (is_DC2114x) {
- device = ((cfrv & CFRV_RN) < DC2114x_BRK ? DC21142 : DC21143);
+ device = ((this_dev->revision & CFRV_RN) < DC2114x_BRK
+ ? DC21142 : DC21143);
}
lp->chipset = device;

@@ -2254,7 +2254,7 @@ static int __devinit de4x5_pci_probe (struct pci_dev *pdev,
}

/* Get the chip configuration revision register */
- pci_read_config_dword(pdev, PCI_REVISION_ID, &lp->cfrv);
+ lp->cfrv = pdev->revision;

/* Set the device number information */
lp->device = dev_num;
diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c
index 4ed67ff..dab74fe 100644
--- a/drivers/net/tulip/dmfe.c
+++ b/drivers/net/tulip/dmfe.c
@@ -181,11 +181,12 @@
udelay(5);

#define __CHK_IO_SIZE(pci_id, dev_rev) \
- (( ((pci_id)==PCI_DM9132_ID) || ((dev_rev) >= 0x02000030) ) ? \
+ (( ((pci_id)==PCI_DM9132_ID) || ((dev_rev) >= 0x30) ) ? \
DM9102A_IO_SIZE: DM9102_IO_SIZE)

-#define CHK_IO_SIZE(pci_dev, dev_rev) \
- (__CHK_IO_SIZE(((pci_dev)->device << 16) | (pci_dev)->vendor, dev_rev))
+#define CHK_IO_SIZE(pci_dev) \
+ (__CHK_IO_SIZE(((pci_dev)->device << 16) | (pci_dev)->vendor, \
+ (pci_dev)->revision))

/* Sten Check */
#define DEVICE net_device
@@ -205,7 +206,7 @@ struct rx_desc {

struct dmfe_board_info {
u32 chip_id; /* Chip vendor/Device ID */
- u32 chip_revision; /* Chip revision */
+ u8 chip_revision; /* Chip revision */
struct DEVICE *next_dev; /* next device */
struct pci_dev *pdev; /* PCI device */
spinlock_t lock;
@@ -359,7 +360,7 @@ static int __devinit dmfe_init_one (struct pci_dev *pdev,
{
struct dmfe_board_info *db; /* board information structure */
struct net_device *dev;
- u32 dev_rev, pci_pmr;
+ u32 pci_pmr;
int i, err;

DMFE_DBUG(0, "dmfe_init_one()", 0);
@@ -392,10 +393,7 @@ static int __devinit dmfe_init_one (struct pci_dev *pdev,
goto err_out_disable;
}

- /* Read Chip revision */
- pci_read_config_dword(pdev, PCI_REVISION_ID, &dev_rev);
-
- if (pci_resource_len(pdev, 0) < (CHK_IO_SIZE(pdev, dev_rev)) ) {
+ if (pci_resource_len(pdev, 0) < (CHK_IO_SIZE(pdev)) ) {
printk(KERN_ERR DRV_NAME ": Allocated I/O size too small\n");
err = -ENODEV;
goto err_out_disable;
@@ -433,7 +431,7 @@ static int __devinit dmfe_init_one (struct pci_dev *pdev,

db->chip_id = ent->driver_data;
db->ioaddr = pci_resource_start(pdev, 0);
- db->chip_revision = dev_rev;
+ db->chip_revision = pdev->revision;
db->wol_mode = 0;

db->pdev = pdev;
@@ -455,7 +453,7 @@ static int __devinit dmfe_init_one (struct pci_dev *pdev,

pci_read_config_dword(pdev, 0x50, &pci_pmr);
pci_pmr &= 0x70000;
- if ( (pci_pmr == 0x10000) && (dev_rev == 0x02000031) )
+ if ( (pci_pmr == 0x10000) && (db->chip_revision == 0x31) )
db->chip_type = 1; /* DM9102A E3 */
else
db->chip_type = 0;
@@ -553,7 +551,7 @@ static int dmfe_open(struct DEVICE *dev)

/* CR6 operation mode decision */
if ( !chkmode || (db->chip_id == PCI_DM9132_ID) ||
- (db->chip_revision >= 0x02000030) ) {
+ (db->chip_revision >= 0x30) ) {
db->cr6_data |= DMFE_TXTH_256;
db->cr0_data = CR0_DEFAULT;
db->dm910x_chk_mode=4; /* Enter the normal mode */
@@ -1199,9 +1197,9 @@ static void dmfe_timer(unsigned long data)
tmp_cr12 = inb(db->ioaddr + DCR12); /* DM9102/DM9102A */

if ( ((db->chip_id == PCI_DM9102_ID) &&
- (db->chip_revision == 0x02000030)) ||
+ (db->chip_revision == 0x30)) ||
((db->chip_id == PCI_DM9132_ID) &&
- (db->chip_revision == 0x02000010)) ) {
+ (db->chip_revision == 0x10)) ) {
/* DM9102A Chip */
if (tmp_cr12 & 2)
link_ok = 0;
diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c
index 041af63..1a9e911 100644
--- a/drivers/net/tulip/tulip_core.c
+++ b/drivers/net/tulip/tulip_core.c
@@ -1238,7 +1238,6 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,
};
static int last_irq;
static int multiport_cnt; /* For four-port boards w/one EEPROM */
- u8 chip_rev;
int i, irq;
unsigned short sum;
unsigned char *ee_data;
@@ -1274,10 +1273,8 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,

if (pdev->vendor == 0x1282 && pdev->device == 0x9100)
{
- u32 dev_rev;
/* Read Chip revision */
- pci_read_config_dword(pdev, PCI_REVISION_ID, &dev_rev);
- if(dev_rev < 0x02000030)
+ if (pdev->revision < 0x02000030)
{
printk(KERN_ERR PFX "skipping early DM9100 with Crc bug (use dmfe)\n");
return -ENODEV;
@@ -1360,8 +1357,6 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,
if (!ioaddr)
goto err_out_free_res;

- pci_read_config_byte (pdev, PCI_REVISION_ID, &chip_rev);
-
/*
* initialize private data structure 'tp'
* it is zeroed and aligned in alloc_etherdev
@@ -1382,7 +1377,7 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,
tp->flags = tulip_tbl[chip_idx].flags;
tp->pdev = pdev;
tp->base_addr = ioaddr;
- tp->revision = chip_rev;
+ tp->revision = pdev->revision;
tp->csr0 = csr0;
spin_lock_init(&tp->lock);
spin_lock_init(&tp->mii_lock);
@@ -1399,7 +1394,7 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,
tulip_mwi_config (pdev, dev);
#else
/* MWI is broken for DC21143 rev 65... */
- if (chip_idx == DC21143 && chip_rev == 65)
+ if (chip_idx == DC21143 && pdev->revision == 65)
tp->csr0 &= ~MWI;
#endif

@@ -1640,7 +1635,7 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,
#else
"Port"
#endif
- " %#llx,", dev->name, chip_name, chip_rev,
+ " %#llx,", dev->name, chip_name, pdev->revision,
(unsigned long long) pci_resource_start(pdev, TULIP_BAR));
pci_set_drvdata(pdev, dev);

diff --git a/drivers/net/tulip/xircom_cb.c b/drivers/net/tulip/xircom_cb.c
index 2470b1e..79943cd 100644
--- a/drivers/net/tulip/xircom_cb.c
+++ b/drivers/net/tulip/xircom_cb.c
@@ -205,7 +205,6 @@ static int __devinit xircom_probe(struct pci_dev *pdev, const struct pci_device_
{
struct net_device *dev = NULL;
struct xircom_private *private;
- unsigned char chip_rev;
unsigned long flags;
unsigned short tmp16;
enter("xircom_probe");
@@ -224,8 +223,6 @@ static int __devinit xircom_probe(struct pci_dev *pdev, const struct pci_device_
pci_read_config_word (pdev,PCI_STATUS, &tmp16);
pci_write_config_word (pdev, PCI_STATUS,tmp16);

- pci_read_config_byte(pdev, PCI_REVISION_ID, &chip_rev);
-
if (!request_region(pci_resource_start(pdev, 0), 128, "xircom_cb")) {
printk(KERN_ERR "xircom_probe: failed to allocate io-region\n");
return -ENODEV;
@@ -286,7 +283,7 @@ static int __devinit xircom_probe(struct pci_dev *pdev, const struct pci_device_
goto reg_fail;
}

- printk(KERN_INFO "%s: Xircom cardbus revision %i at irq %i \n", dev->name, chip_rev, pdev->irq);
+ printk(KERN_INFO "%s: Xircom cardbus revision %i at irq %i \n", dev->name, pdev->revision, pdev->irq);
/* start the transmitter to get a heartbeat */
/* TODO: send 2 dummy packets here */
transceiver_voodoo(private);
diff --git a/drivers/net/tulip/xircom_tulip_cb.c b/drivers/net/tulip/xircom_tulip_cb.c
index f641729..83d69f1 100644
--- a/drivers/net/tulip/xircom_tulip_cb.c
+++ b/drivers/net/tulip/xircom_tulip_cb.c
@@ -524,7 +524,6 @@ static int __devinit xircom_init_one(struct pci_dev *pdev, const struct pci_devi
int chip_idx = id->driver_data;
long ioaddr;
int i;
- u8 chip_rev;

/* when built into the kernel, we only print version if device is found */
#ifndef MODULE
@@ -620,9 +619,8 @@ static int __devinit xircom_init_one(struct pci_dev *pdev, const struct pci_devi
if (register_netdev(dev))
goto err_out_cleardev;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &chip_rev);
printk(KERN_INFO "%s: %s rev %d at %#3lx,",
- dev->name, xircom_tbl[chip_idx].chip_name, chip_rev, ioaddr);
+ dev->name, xircom_tbl[chip_idx].chip_name, pdev->revision, ioaddr);
for (i = 0; i < 6; i++)
printk("%c%2.2X", i ? ':' : ' ', dev->dev_addr[i]);
printk(", IRQ %d.\n", dev->irq);
diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index adea290..73e9c3d 100644
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -622,7 +622,6 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
struct net_device *dev;
struct rhine_private *rp;
int i, rc;
- u8 pci_rev;
u32 quirks;
long pioaddr;
long memaddr;
@@ -642,27 +641,25 @@ static int __devinit rhine_init_one(struct pci_dev *pdev,
printk(version);
#endif

- pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev);
-
io_size = 256;
phy_id = 0;
quirks = 0;
name = "Rhine";
- if (pci_rev < VTunknown0) {
+ if (pdev->revision < VTunknown0) {
quirks = rqRhineI;
io_size = 128;
}
- else if (pci_rev >= VT6102) {
+ else if (pdev->revision >= VT6102) {
quirks = rqWOL | rqForceReset;
- if (pci_rev < VT6105) {
+ if (pdev->revision < VT6105) {
name = "Rhine II";
quirks |= rqStatusWBRace; /* Rhine-II exclusive */
}
else {
phy_id = 1; /* Integrated PHY, phy_id fixed to 1 */
- if (pci_rev >= VT6105_B0)
+ if (pdev->revision >= VT6105_B0)
quirks |= rq6patterns;
- if (pci_rev < VT6105M)
+ if (pdev->revision < VT6105M)
name = "Rhine III";
else
name = "Rhine III (Management Adapter)";
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index 25b75b6..d582b8d 100644
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -890,8 +890,7 @@ static void __devinit velocity_init_info(struct pci_dev *pdev,

static int __devinit velocity_get_pci_info(struct velocity_info *vptr, struct pci_dev *pdev)
{
- if (pci_read_config_byte(pdev, PCI_REVISION_ID, &vptr->rev_id) < 0)
- return -EIO;
+ vptr->rev_id = pdev->revision;

pci_set_master(pdev);

diff --git a/drivers/net/wan/pc300_drv.c b/drivers/net/wan/pc300_drv.c
index 999bf71..ec1c556 100644
--- a/drivers/net/wan/pc300_drv.c
+++ b/drivers/net/wan/pc300_drv.c
@@ -3439,7 +3439,6 @@ static int __devinit
cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
static int first_time = 1;
- ucchar cpc_rev_id;
int err, eeprom_outdated = 0;
ucshort device_id;
pc300_t *card;
@@ -3480,7 +3479,6 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
card->hw.falcsize = pci_resource_len(pdev, 4);
card->hw.plxphys = pci_resource_start(pdev, 5);
card->hw.plxsize = pci_resource_len(pdev, 5);
- pci_read_config_byte(pdev, PCI_REVISION_ID, &cpc_rev_id);

switch (device_id) {
case PCI_DEVICE_ID_PC300_RX_1:
@@ -3498,7 +3496,7 @@ cpc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
}
#ifdef PC300_DEBUG_PCI
printk("cpc (bus=0x0%x,pci_id=0x%x,", pdev->bus->number, pdev->devfn);
- printk("rev_id=%d) IRQ%d\n", cpc_rev_id, card->hw.irq);
+ printk("rev_id=%d) IRQ%d\n", pdev->revision, card->hw.irq);
printk("cpc:found ramaddr=0x%08lx plxaddr=0x%08lx "
"ctladdr=0x%08lx falcaddr=0x%08lx\n",
card->hw.ramphys, card->hw.plxphys, card->hw.scaphys,
diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c
index aff05db..dfbd3b0 100644
--- a/drivers/net/wan/pc300too.c
+++ b/drivers/net/wan/pc300too.c
@@ -311,7 +311,6 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
card_t *card;
- u8 rev_id;
u32 __iomem *p;
int i;
u32 ramsize;
@@ -366,7 +365,6 @@ static int __devinit pc300_pci_init_one(struct pci_dev *pdev,
return -ENOMEM;
}

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
if (pci_resource_len(pdev, 0) != PC300_PLX_SIZE ||
pci_resource_len(pdev, 2) != PC300_SCA_SIZE ||
pci_resource_len(pdev, 3) < 16384) {
diff --git a/drivers/net/wan/pci200syn.c b/drivers/net/wan/pci200syn.c
index ca06a00..7f720de 100644
--- a/drivers/net/wan/pci200syn.c
+++ b/drivers/net/wan/pci200syn.c
@@ -289,7 +289,6 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
card_t *card;
- u8 rev_id;
u32 __iomem *p;
int i;
u32 ramsize;
@@ -330,7 +329,6 @@ static int __devinit pci200_pci_init_one(struct pci_dev *pdev,
return -ENOMEM;
}

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
if (pci_resource_len(pdev, 0) != PCI200SYN_PLX_SIZE ||
pci_resource_len(pdev, 2) != PCI200SYN_SCA_SIZE ||
pci_resource_len(pdev, 3) < 16384) {
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
index ef6b253..0946441 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -3741,10 +3741,8 @@ static int bcm43xx_attach_board(struct bcm43xx_private *bcm)
&bcm->board_type);
if (err)
goto err_iounmap;
- err = bcm43xx_pci_read_config16(bcm, PCI_REVISION_ID,
- &bcm->board_revision);
- if (err)
- goto err_iounmap;
+
+ bcm->board_revision = bcm->pci_dev->revision;

err = bcm43xx_chipset_attach(bcm);
if (err)
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 5617cfd..d590a99 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -796,7 +796,6 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
u8 num_of_slots = 0;
u8 hp_slot = 0;
u8 device;
- u8 rev;
u8 bus_cap;
u16 temp_word;
u16 vendor_id;
@@ -823,9 +822,8 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
dbg("Vendor ID: %x\n", vendor_id);

- rc = pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
- dbg("revision: %d\n", rev);
- if (rc || ((vendor_id == PCI_VENDOR_ID_COMPAQ) && (!rev))) {
+ dbg("revision: %d\n", pdev->revision);
+ if ((vendor_id == PCI_VENDOR_ID_COMPAQ) && (!pdev->revision)) {
err(msg_HPC_rev_error);
rc = -ENODEV;
goto err_disable_device;
@@ -836,7 +834,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
* For Intel, each SSID bit identifies a PHP capability.
* Also Intel HPC's may have RID=0.
*/
- if ((rev > 2) || (vendor_id == PCI_VENDOR_ID_INTEL)) {
+ if ((pdev->revision > 2) || (vendor_id == PCI_VENDOR_ID_INTEL)) {
// TODO: This code can be made to support non-Compaq or Intel subsystem IDs
rc = pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vid);
if (rc) {
@@ -870,7 +868,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)

switch (subsystem_vid) {
case PCI_VENDOR_ID_COMPAQ:
- if (rev >= 0x13) { /* CIOBX */
+ if (pdev->revision >= 0x13) { /* CIOBX */
ctrl->push_flag = 1;
ctrl->slot_switch_type = 1;
ctrl->push_button = 1;
@@ -1075,7 +1073,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
memcpy(ctrl->pci_bus, pdev->bus, sizeof(*ctrl->pci_bus));

ctrl->bus = pdev->bus->number;
- ctrl->rev = rev;
+ ctrl->rev = pdev->revision;
dbg("bus device function rev: %d %d %d %d\n", ctrl->bus,
PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), ctrl->rev);

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 01d8f8a..5be2d1d 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -587,10 +587,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_v
*/
static void __devinit quirk_amd_ioapic(struct pci_dev *dev)
{
- u8 rev;
-
- pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
- if (rev >= 0x02) {
+ if (dev->revision >= 0x02) {
printk(KERN_WARNING "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n");
printk(KERN_WARNING " : booting with the \"noapic\" option.\n");
}
@@ -610,13 +607,12 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw );
#define AMD8131_NIOAMODE_BIT 0
static void quirk_amd_8131_ioapic(struct pci_dev *dev)
{
- unsigned char revid, tmp;
+ unsigned char tmp;

if (nr_ioapics == 0)
return;

- pci_read_config_byte(dev, PCI_REVISION_ID, &revid);
- if (revid == AMD8131_revA0 || revid == AMD8131_revB0) {
+ if (dev->revision == AMD8131_revA0 || dev->revision == AMD8131_revB0) {
printk(KERN_INFO "Fixing up AMD8131 IOAPIC mode\n");
pci_read_config_byte( dev, AMD8131_MISC, &tmp);
tmp &= ~(1 << AMD8131_NIOAMODE_BIT);
@@ -843,10 +839,8 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, qu
static void quirk_disable_pxb(struct pci_dev *pdev)
{
u16 config;
- u8 rev;

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
- if (rev != 0x04) /* Only C0 requires this */
+ if (pdev->revision != 0x04) /* Only C0 requires this */
return;
pci_read_config_word(pdev, 0x40, &config);
if (config & (1<<6)) {
diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 27852b4..1c0d757 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -223,13 +223,8 @@ static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
{
int err, i;

- err = pci_read_config_byte(asd_ha->pcidev, PCI_REVISION_ID,
- &asd_ha->revision_id);
- if (err) {
- asd_printk("couldn't read REVISION ID register of %s\n",
- pci_name(asd_ha->pcidev));
- goto Err;
- }
+ asd_ha->revision_id = asd_ha->pcidev->revision;
+
err = -ENODEV;
if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
asd_printk("%s is revision %s (%X), which is not supported\n",
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index fa6ff29..8133071 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -5367,18 +5367,12 @@ static const u16 ipr_blocked_processors[] = {
**/
static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
{
- u8 rev_id;
int i;

- if (ioa_cfg->type == 0x5702) {
- if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID,
- &rev_id) == PCIBIOS_SUCCESSFUL) {
- if (rev_id < 4) {
- for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
- if (__is_processor(ipr_blocked_processors[i]))
- return 1;
- }
- }
+ if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
+ for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
+ if (__is_processor(ipr_blocked_processors[i]))
+ return 1;
}
}
return 0;
@@ -7535,13 +7529,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
else
ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;

- rc = pci_read_config_byte(pdev, PCI_REVISION_ID, &ioa_cfg->revid);
-
- if (rc != PCIBIOS_SUCCESSFUL) {
- dev_err(&pdev->dev, "Failed to read PCI revision ID\n");
- rc = -EIO;
- goto out_scsi_host_put;
- }
+ ioa_cfg->revid = pdev->revision;

ipr_regs_pci = pci_resource_start(pdev, 0);

diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index 8b704f7..40f148e 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -7148,7 +7148,6 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
uint32_t mem_addr;
uint32_t io_len;
uint32_t mem_len;
- uint8_t revision_id;
uint8_t bus;
uint8_t func;
uint8_t irq;
@@ -7227,12 +7226,6 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
}
}

- /* get the revision ID */
- if (pci_read_config_byte(pci_dev, PCI_REVISION_ID, &revision_id)) {
- IPS_PRINTK(KERN_WARNING, pci_dev, "Can't get revision id.\n");
- return -1;
- }
-
subdevice_id = pci_dev->subsystem_device;

/* found a controller */
@@ -7258,7 +7251,7 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
ha->mem_ptr = mem_ptr;
ha->ioremap_ptr = ioremap_ptr;
ha->host_num = (uint32_t) index;
- ha->revision_id = revision_id;
+ ha->revision_id = pci_dev->revision;
ha->slot_num = PCI_SLOT(pci_dev->devfn);
ha->device_id = pci_dev->device;
ha->subdevice_id = subdevice_id;
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 2a45aec..cf94f86 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -296,7 +296,7 @@ qla24xx_pci_config(scsi_qla_host_t *ha)
d &= ~PCI_ROM_ADDRESS_ENABLE;
pci_write_config_dword(ha->pdev, PCI_ROM_ADDRESS, d);

- pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->chip_revision);
+ ha->chip_revision = ha->pdev->revision;

/* Get PCI bus information. */
spin_lock_irqsave(&ha->hardware_lock, flags);
diff --git a/drivers/serial/jsm/jsm_driver.c b/drivers/serial/jsm/jsm_driver.c
index 81792e6..6767ee3 100644
--- a/drivers/serial/jsm/jsm_driver.c
+++ b/drivers/serial/jsm/jsm_driver.c
@@ -88,7 +88,7 @@ static int jsm_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
spin_lock_init(&brd->bd_intr_lock);

/* store which revision we have */
- pci_read_config_byte(pdev, PCI_REVISION_ID, &brd->rev);
+ brd->rev = pdev->revision;

brd->irq = pdev->irq;

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 12edc72..966965f 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -149,8 +149,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
* fixed in newer silicon.
*/
case 0x0068:
- pci_read_config_dword(pdev, PCI_REVISION_ID, &temp);
- if ((temp & 0xff) < 0xa4)
+ if (pdev->revision < 0xa4)
ehci->no_selective_suspend = 1;
break;
}
diff --git a/drivers/video/kyro/STG4000InitDevice.c b/drivers/video/kyro/STG4000InitDevice.c
index ab5285a..1d3f208 100644
--- a/drivers/video/kyro/STG4000InitDevice.c
+++ b/drivers/video/kyro/STG4000InitDevice.c
@@ -247,7 +247,6 @@ int SetCoreClockPLL(volatile STG4000REG __iomem *pSTGReg, struct pci_dev *pDev)
u32 ulCoreClock;
u32 tmp;
u32 ulChipSpeed;
- u8 rev;

STG_WRITE_REG(IntMask, 0xFFFF);

@@ -276,9 +275,9 @@ int SetCoreClockPLL(volatile STG4000REG __iomem *pSTGReg, struct pci_dev *pDev)
PMX2_SOFTRESET_ROM_RST);

pci_read_config_word(pDev, PCI_CONFIG_SUBSYS_ID, &sub);
- pci_read_config_byte(pDev, PCI_REVISION_ID, &rev);

- ulChipSpeed = InitSDRAMRegisters(pSTGReg, (u32)sub, (u32)rev);
+ ulChipSpeed = InitSDRAMRegisters(pSTGReg, (u32)sub,
+ (u32)pDev->revision);

if (ulChipSpeed == 0)
return -EINVAL;
diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c
index c8559a7..886e475 100644
--- a/drivers/video/matrox/matroxfb_base.c
+++ b/drivers/video/matrox/matroxfb_base.c
@@ -1994,7 +1994,6 @@ static void matroxfb_unregister_device(struct matrox_fb_info* minfo) {

static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dummy) {
struct board* b;
- u_int8_t rev;
u_int16_t svid;
u_int16_t sid;
struct matrox_fb_info* minfo;
@@ -2005,11 +2004,10 @@ static int matroxfb_probe(struct pci_dev* pdev, const struct pci_device_id* dumm
#endif
DBG(__FUNCTION__)

- pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
svid = pdev->subsystem_vendor;
sid = pdev->subsystem_device;
for (b = dev_list; b->vendor; b++) {
- if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < rev)) continue;
+ if ((b->vendor != pdev->vendor) || (b->device != pdev->device) || (b->rev < pdev->revision)) continue;
if (b->svid)
if ((b->svid != svid) || (b->sid != sid)) continue;
break;
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index a30e1e1..93d07ef 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -5789,7 +5789,7 @@ sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
ivideo->warncount = 0;
ivideo->chip_id = pdev->device;
ivideo->chip_vendor = pdev->vendor;
- pci_read_config_byte(pdev, PCI_REVISION_ID, &ivideo->revision_id);
+ ivideo->revision_id = pdev->revision;
ivideo->SiS_Pr.ChipRevision = ivideo->revision_id;
pci_read_config_word(pdev, PCI_COMMAND, &reg16);
ivideo->sisvga_enabled = reg16 & 0x01;
diff --git a/drivers/video/sstfb.c b/drivers/video/sstfb.c
index 62fa550..5eff28c 100644
--- a/drivers/video/sstfb.c
+++ b/drivers/video/sstfb.c
@@ -1348,7 +1348,7 @@ static int __devinit sstfb_probe(struct pci_dev *pdev,
f_ddprintk("found device : %s\n", spec->name);

par->dev = pdev;
- pci_read_config_byte(pdev, PCI_REVISION_ID, &par->revision);
+ par->revision = pdev->revision;

fix->mmio_start = pci_resource_start(pdev,0);
fix->mmio_len = 0x400000;
diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c
index f0fde6e..5c0dab6 100644
--- a/drivers/video/tgafb.c
+++ b/drivers/video/tgafb.c
@@ -1625,8 +1625,7 @@ tgafb_register(struct device *dev)
par->tga_regs_base = mem_base + TGA_REGS_OFFSET;
par->tga_type = tga_type;
if (tga_bus_pci)
- pci_read_config_byte(to_pci_dev(dev), PCI_REVISION_ID,
- &par->tga_chip_rev);
+ par->tga_chip_rev = (to_pci_dev(dev))->revision;
if (tga_bus_tc)
par->tga_chip_rev = TGA_READ_REG(par, TGA_START_REG) & 0xff;

diff --git a/sound/oss/emu10k1/main.c b/sound/oss/emu10k1/main.c
index 16ac025..5058411 100644
--- a/sound/oss/emu10k1/main.c
+++ b/sound/oss/emu10k1/main.c
@@ -1302,7 +1302,7 @@ static int __devinit emu10k1_probe(struct pci_dev *pci_dev, const struct pci_dev
goto err_irq;
}

- pci_read_config_byte(pci_dev, PCI_REVISION_ID, &card->chiprev);
+ card->chiprev = pci_dev->revision;
pci_read_config_word(pci_dev, PCI_SUBSYSTEM_ID, &card->model);

printk(KERN_INFO "emu10k1: %s rev %d model %#04x found, IO at %#04lx-%#04lx, IRQ %d\n",
diff --git a/sound/oss/es1371.c b/sound/oss/es1371.c
index 593a3aa..5264857 100644
--- a/sound/oss/es1371.c
+++ b/sound/oss/es1371.c
@@ -2894,7 +2894,7 @@ static int __devinit es1371_probe(struct pci_dev *pcidev, const struct pci_devic
s->irq = pcidev->irq;
s->vendor = pcidev->vendor;
s->device = pcidev->device;
- pci_read_config_byte(pcidev, PCI_REVISION_ID, &s->rev);
+ s->rev = pcidev->revision;
s->codec->private_data = s;
s->codec->id = 0;
s->codec->codec_read = rdcodec;
diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index cb59f99..41543a4 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -2218,7 +2218,7 @@ static int __devinit snd_ali_create(struct snd_card *card,
codec->card = card;
codec->pci = pci;
codec->irq = -1;
- pci_read_config_byte(pci, PCI_REVISION_ID, &codec->revision);
+ codec->revision = pci->revision;
codec->spdif_support = spdif_support;

if (pcm_streams < 1)
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index 7d8053b..89184a4 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -1639,15 +1639,12 @@ static int __devinit snd_atiixp_probe(struct pci_dev *pci,
{
struct snd_card *card;
struct atiixp *chip;
- unsigned char revision;
int err;

card = snd_card_new(index, id, THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;

- pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
-
strcpy(card->driver, spdif_aclink ? "ATIIXP" : "ATIIXP-SPDMA");
strcpy(card->shortname, "ATI IXP");
if ((err = snd_atiixp_create(card, pci, &chip)) < 0)
@@ -1670,7 +1667,8 @@ static int __devinit snd_atiixp_probe(struct pci_dev *pci,
snd_atiixp_chip_start(chip);

snprintf(card->longname, sizeof(card->longname),
- "%s rev %x with %s at %#lx, irq %i", card->shortname, revision,
+ "%s rev %x with %s at %#lx, irq %i", card->shortname,
+ pci->revision,
chip->ac97[0] ? snd_ac97_get_short_name(chip->ac97[0]) : "?",
chip->addr, chip->irq);

diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index 904023f..ce752f8 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -1283,15 +1283,12 @@ static int __devinit snd_atiixp_probe(struct pci_dev *pci,
{
struct snd_card *card;
struct atiixp_modem *chip;
- unsigned char revision;
int err;

card = snd_card_new(index, id, THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;

- pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
-
strcpy(card->driver, "ATIIXP-MODEM");
strcpy(card->shortname, "ATI IXP Modem");
if ((err = snd_atiixp_create(card, pci, &chip)) < 0)
@@ -1312,7 +1309,7 @@ static int __devinit snd_atiixp_probe(struct pci_dev *pci,
snd_atiixp_chip_start(chip);

sprintf(card->longname, "%s rev %x at 0x%lx, irq %i",
- card->shortname, revision, chip->addr, chip->irq);
+ card->shortname, pci->revision, chip->addr, chip->irq);

if ((err = snd_card_register(card)) < 0)
goto __error;
diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index 238154b..5ec1b6f 100644
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -341,11 +341,7 @@ snd_vortex_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
snd_card_free(card);
return err;
}
- if ((err = pci_read_config_byte(pci, PCI_REVISION_ID,
- &(chip->rev))) < 0) {
- snd_card_free(card);
- return err;
- }
+ chip->rev = pci->revision;
#ifdef CHIP_AU8830
if ((chip->rev) != 0xfe && (chip->rev) != 0xfa) {
printk(KERN_ALERT
diff --git a/sound/pci/ca0106/ca0106.h b/sound/pci/ca0106/ca0106.h
index aaac6e5..a0420bc 100644
--- a/sound/pci/ca0106/ca0106.h
+++ b/sound/pci/ca0106/ca0106.h
@@ -590,7 +590,6 @@ struct snd_ca0106 {
struct resource *res_port;
int irq;

- unsigned char revision; /* chip revision */
unsigned int serial; /* serial number */
unsigned short model; /* subsystem id */

diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c
index 48f3f17..9fd7b8a 100644
--- a/sound/pci/ca0106/ca0106_main.c
+++ b/sound/pci/ca0106/ca0106_main.c
@@ -1293,13 +1293,12 @@ static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
}

pci_set_master(pci);
- /* read revision & serial */
- pci_read_config_byte(pci, PCI_REVISION_ID, &chip->revision);
+ /* read serial */
pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
#if 1
printk(KERN_INFO "snd-ca0106: Model %04x Rev %08x Serial %08x\n", chip->model,
- chip->revision, chip->serial);
+ pci->revision, chip->serial);
#endif
strcpy(card->driver, "CA0106");
strcpy(card->shortname, "CA0106");
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index dbc805c..4a9b59a 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -1511,7 +1511,6 @@ int __devinit snd_emu10k1_create(struct snd_card *card,
struct snd_emu10k1 *emu;
int idx, err;
int is_audigy;
- unsigned char revision;
unsigned int silent_page;
const struct snd_emu_chip_details *c;
static struct snd_device_ops ops = {
@@ -1543,8 +1542,7 @@ int __devinit snd_emu10k1_create(struct snd_card *card,
emu->synth = NULL;
emu->get_synth_voice = NULL;
/* read revision & serial */
- pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
- emu->revision = revision;
+ emu->revision = pci->revision;
pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &emu->serial);
pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &emu->model);
snd_printdd("vendor=0x%x, device=0x%x, subsystem_vendor_id=0x%x, subsystem_id=0x%x\n",pci->vendor, pci->device, emu->serial, emu->model);
diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index bb0fec7..e4af7a9 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -942,7 +942,7 @@ static int __devinit snd_emu10k1x_create(struct snd_card *card,

pci_set_master(pci);
/* read revision & serial */
- pci_read_config_byte(pci, PCI_REVISION_ID, &chip->revision);
+ chip->revision = pci->revision;
pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial);
pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model);
snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model,
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 6a0ddcf..7c40396 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -2110,7 +2110,6 @@ static int __devinit snd_ensoniq_create(struct snd_card *card,
struct ensoniq ** rensoniq)
{
struct ensoniq *ensoniq;
- unsigned char cmdb;
int err;
static struct snd_device_ops ops = {
.dev_free = snd_ensoniq_dev_free,
@@ -2151,8 +2150,7 @@ static int __devinit snd_ensoniq_create(struct snd_card *card,
}
#endif
pci_set_master(pci);
- pci_read_config_byte(pci, PCI_REVISION_ID, &cmdb);
- ensoniq->rev = cmdb;
+ ensoniq->rev = pci->revision;
#ifdef CHIP1370
#if 0
ensoniq->ctrl = ES_1370_CDC_EN | ES_1370_SERR_DISABLE |
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index 6dc578b..1101517 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1369,7 +1369,6 @@ static int __devinit snd_fm801_create(struct snd_card *card,
struct fm801 ** rchip)
{
struct fm801 *chip;
- unsigned char rev;
int err;
static struct snd_device_ops ops = {
.dev_free = snd_fm801_dev_free,
@@ -1405,8 +1404,7 @@ static int __devinit snd_fm801_create(struct snd_card *card,
pci_set_master(pci);
}

- pci_read_config_byte(pci, PCI_REVISION_ID, &rev);
- if (rev >= 0xb1) /* FM801-AU */
+ if (pci->revision >= 0xb1) /* FM801-AU */
chip->multichannel = 1;

snd_fm801_chip_init(chip, 0);
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index a289922..50c9f92 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -2431,7 +2431,6 @@ static int __devinit snd_via82xx_probe(struct pci_dev *pci,
{
struct snd_card *card;
struct via82xx *chip;
- unsigned char revision;
int chip_type = 0, card_type;
unsigned int i;
int err;
@@ -2441,18 +2440,17 @@ static int __devinit snd_via82xx_probe(struct pci_dev *pci,
return -ENOMEM;

card_type = pci_id->driver_data;
- pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
switch (card_type) {
case TYPE_CARD_VIA686:
strcpy(card->driver, "VIA686A");
- sprintf(card->shortname, "VIA 82C686A/B rev%x", revision);
+ sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
chip_type = TYPE_VIA686;
break;
case TYPE_CARD_VIA8233:
chip_type = TYPE_VIA8233;
- sprintf(card->shortname, "VIA 823x rev%x", revision);
+ sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
- if (revision == via823x_cards[i].revision) {
+ if (pci->revision == via823x_cards[i].revision) {
chip_type = via823x_cards[i].type;
strcpy(card->shortname, via823x_cards[i].name);
break;
@@ -2460,7 +2458,7 @@ static int __devinit snd_via82xx_probe(struct pci_dev *pci,
}
if (chip_type != TYPE_VIA8233A) {
if (dxs_support == VIA_DXS_AUTO)
- dxs_support = check_dxs_list(pci, revision);
+ dxs_support = check_dxs_list(pci, pci->revision);
/* force to use VIA8233 or 8233A model according to
* dxs_support module option
*/
@@ -2471,7 +2469,7 @@ static int __devinit snd_via82xx_probe(struct pci_dev *pci,
}
if (chip_type == TYPE_VIA8233A)
strcpy(card->driver, "VIA8233A");
- else if (revision >= VIA_REV_8237)
+ else if (pci->revision >= VIA_REV_8237)
strcpy(card->driver, "VIA8237"); /* no slog assignment */
else
strcpy(card->driver, "VIA8233");
@@ -2482,7 +2480,7 @@ static int __devinit snd_via82xx_probe(struct pci_dev *pci,
goto __error;
}

- if ((err = snd_via82xx_create(card, pci, chip_type, revision,
+ if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
ac97_clock, &chip)) < 0)
goto __error;
card->private_data = chip;
diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index b338e15..8cbf8eb 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -1162,7 +1162,6 @@ static int __devinit snd_via82xx_probe(struct pci_dev *pci,
{
struct snd_card *card;
struct via82xx_modem *chip;
- unsigned char revision;
int chip_type = 0, card_type;
unsigned int i;
int err;
@@ -1172,7 +1171,6 @@ static int __devinit snd_via82xx_probe(struct pci_dev *pci,
return -ENOMEM;

card_type = pci_id->driver_data;
- pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
switch (card_type) {
case TYPE_CARD_VIA82XX_MODEM:
strcpy(card->driver, "VIA82XX-MODEM");
@@ -1184,7 +1182,7 @@ static int __devinit snd_via82xx_probe(struct pci_dev *pci,
goto __error;
}

- if ((err = snd_via82xx_create(card, pci, chip_type, revision,
+ if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
ac97_clock, &chip)) < 0)
goto __error;
card->private_data = chip;
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index ea861bc..ab7a81c 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -2404,7 +2404,7 @@ int __devinit snd_ymfpci_create(struct snd_card *card,
chip->pci = pci;
chip->irq = -1;
chip->device_id = pci->device;
- pci_read_config_byte(pci, PCI_REVISION_ID, &chip->rev);
+ chip->rev = pci->revision;
chip->reg_area_phys = pci_resource_start(pci, 0);
chip->reg_area_virt = ioremap_nocache(chip->reg_area_phys, 0x8000);
pci_set_master(pci);

2007-06-09 07:00:42

by Grant Grundler

Subject: Re: [PATCH 1/2] [RFC] PCI: read revision ID by default

On Fri, Jun 08, 2007 at 03:46:30PM -0700, Auke Kok wrote:
> Currently there are 97 occurrences where drivers need the pci
> revision ID. We can do this once for all devices. Even the pci
> subsystem needs the revision several times for quirks. The extra
> u8 member pads out nicely in the pci_dev struct.

Good idea. I always wondered why we read the invariants so often
in the code.

>
> Signed-off-by: Auke Kok <[email protected]>
> ---
>
> drivers/pci/probe.c | 3 +++
> include/linux/pci.h | 1 +
> 2 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
> index e48fcf0..0fdb71d 100644
> --- a/drivers/pci/probe.c
> +++ b/drivers/pci/probe.c
> @@ -918,6 +918,9 @@ pci_scan_device(struct pci_bus *bus, int devfn)
> dev->cfg_size = pci_cfg_space_size(dev);
> dev->error_state = pci_channel_io_normal;
>
> + /* read the PCI revision: 1 byte */
> + pci_read_config_byte(dev, PCI_REVISION_ID, &dev->revision);

probe.c:pci_setup_device() is also reading this byte but discards it:
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class);
class >>= 8; /* upper 3 bytes */
dev->class = class;

Can you use "class & 0xff"? Or is pci_setup_device() too late?
Or can you read the whole 32-bits in pci_scan_device() and remove
the pci_read_config() in pci_setup_device()?

> +
> /* Assume 32-bit PCI; let 64-bit PCI cards (which are far rarer)
> set this higher, assuming the system even supports it. */
> dev->dma_mask = 0xffffffff;
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index fbf3766..9847936 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -138,6 +138,7 @@ struct pci_dev {
> unsigned short subsystem_vendor;
> unsigned short subsystem_device;
> unsigned int class; /* 3 bytes: (base,sub,prog-if) */
> + u8 revision; /* PCI revision, low byte of class word */

If anyone doesn't want to add this, "class" really only uses 24 bits.
ie could be packed together with revision field like they are in
PCI configuration header.

thanks,
grant

> u8 hdr_type; /* PCI header type (`multi' flag masked out) */
> u8 rom_base_reg; /* which config register controls the ROM */
> u8 pin; /* which interrupt pin this device uses */

2007-06-09 08:03:08

by David Miller

Subject: Re: [PATCH 1/2] [RFC] PCI: read revision ID by default

From: Grant Grundler <[email protected]>
Date: Sat, 9 Jun 2007 00:59:53 -0600

> On Fri, Jun 08, 2007 at 03:46:30PM -0700, Auke Kok wrote:
> > Currently there are 97 occurrences where drivers need the pci
> > revision ID. We can do this once for all devices. Even the pci
> > subsystem needs the revision several times for quirks. The extra
> > u8 member pads out nicely in the pci_dev struct.
>
> Good idea. I always wondered why we read the invariants so often
> in the code.

BTW, if you add code like this, you also have to add the
appropriate code to do this for all the platforms that probe
the PCI bus using a firmware device tree like sparc64
and powerpc do.

2007-06-09 19:31:37

by Kok, Auke

Subject: Re: [PATCH 1/2] [RFC] PCI: read revision ID by default

David Miller wrote:
> From: Grant Grundler <[email protected]>
> Date: Sat, 9 Jun 2007 00:59:53 -0600
>
>> On Fri, Jun 08, 2007 at 03:46:30PM -0700, Auke Kok wrote:
>>> Currently there are 97 occurrences where drivers need the pci
>>> revision ID. We can do this once for all devices. Even the pci
>>> subsystem needs the revision several times for quirks. The extra
>>> u8 member pads out nicely in the pci_dev struct.
>> Good idea. I always wondered why we read the invariants so often
>> in the code.
>
> BTW, if you add code like this, you also have to add the
> appropriate code to do this for all the platforms that probe
> the PCI bus using a firmware device tree like sparc64
> and powerpc do.

yes absolutely, I'll try to see if I can come up with that. Also, I'll add
reading the class part at the same time since that just makes sense.

Auke

2007-06-09 19:49:14

by Kok, Auke

Subject: Re: [PATCH 1/2] [RFC] PCI: read revision ID by default

Grant Grundler wrote:
> On Fri, Jun 08, 2007 at 03:46:30PM -0700, Auke Kok wrote:
>> Currently there are 97 occurrences where drivers need the pci
>> revision ID. We can do this once for all devices. Even the pci
>> subsystem needs the revision several times for quirks. The extra
>> u8 member pads out nicely in the pci_dev struct.
>
> Good idea. I always wondered why we read the invariants so often
> in the code.
>
>> Signed-off-by: Auke Kok <[email protected]>
>> ---
>>
>> drivers/pci/probe.c | 3 +++
>> include/linux/pci.h | 1 +
>> 2 files changed, 4 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
>> index e48fcf0..0fdb71d 100644
>> --- a/drivers/pci/probe.c
>> +++ b/drivers/pci/probe.c
>> @@ -918,6 +918,9 @@ pci_scan_device(struct pci_bus *bus, int devfn)
>> dev->cfg_size = pci_cfg_space_size(dev);
>> dev->error_state = pci_channel_io_normal;
>>
>> + /* read the PCI revision: 1 byte */
>> + pci_read_config_byte(dev, PCI_REVISION_ID, &dev->revision);
>
> probe.c:pci_setup_device() is also reading this byte but discards it:
> pci_read_config_dword(dev, PCI_CLASS_REVISION, &class);
> class >>= 8; /* upper 3 bytes */
> dev->class = class;
>
> Can you use "class & 0xff"? Or is pci_setup_device() too late?
> Or can you read the whole 32-bits in pci_scan_device() and remove
> the pci_read_config() in pci_setup_device()?

no, pci_setup_device() is just called right after the location where I read the
REVISION_ID. I'll remove the read and put the dev->revision right after where we
read the class dword.

Auke

2007-06-11 15:20:09

by Dave Jones

Subject: Re: [PATCH 2/2] [RFC] PCI: Change all drivers to use pci_device->revision

On Fri, Jun 08, 2007 at 03:46:36PM -0700, Auke Kok wrote:
> Instead of all drivers reading pci config space to get the revision
> ID, they can now use the pci_device->revision member.
>
> This exposes some issues where drivers where reading a word or a dword
> for the revision number, and adding useless error-handling around the
> read. Some drivers even just read it for no purpose of all.
>
> In devices where the revision ID is being copied over and used in what
> appears to be the equivalent of hotpath, I have left the copy code
> and the cached copy as not to influence the driver's performance.
>
> Compile tested with make all{yes,mod}config on x86_64 and i386.
>
> Signed-off-by: Auke Kok <[email protected]>

ACKed-by: Dave Jones <[email protected]>
for the cpufreq bits.

Dave

--
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