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linux-sg2042
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Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

This commit is contained in:
Steve French 2005-11-30 15:56:59 -08:00
parent 25741b3e43 346f7dbb17
commit d2149b5423
16 changed files with 207 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/usb/error-codes.txt
View File

@ -46,8 +46,9 @@ USB-specific:
-EMSGSIZE (a) endpoint maxpacket size is zero; it is not usable
in the current interface altsetting.
(b) ISO packet is biger than endpoint maxpacket
(c) requested data transfer size is invalid (negative)
(b) ISO packet is larger than the endpoint maxpacket.
(c) requested data transfer length is invalid: negative
or too large for the host controller.
-ENOSPC This request would overcommit the usb bandwidth reserved
for periodic transfers (interrupt, isochronous).

5
drivers/char/drm/drm_context.c
View File

@ -432,7 +432,10 @@ int drm_addctx(struct inode *inode, struct file *filp,
if (ctx.handle != DRM_KERNEL_CONTEXT) {
if (dev->driver->context_ctor)
dev->driver->context_ctor(dev, ctx.handle);
if (!dev->driver->context_ctor(dev, ctx.handle)) {
DRM_DEBUG( "Running out of ctxs or memory.\n");
return -ENOMEM;
}
}
ctx_entry = drm_alloc(sizeof(*ctx_entry), DRM_MEM_CTXLIST);

25
drivers/hwmon/w83792d.c
View File

@ -193,6 +193,7 @@ static const u8 W83792D_REG_LEVELS[3][4] = {
0xE2 } /* (bit3-0) SmartFanII: Fan3 Level 3 */
};
#define W83792D_REG_GPIO_EN 0x1A
#define W83792D_REG_CONFIG 0x40
#define W83792D_REG_VID_FANDIV 0x47
#define W83792D_REG_CHIPID 0x49
@ -257,7 +258,7 @@ DIV_TO_REG(long val)
{
int i;
val = SENSORS_LIMIT(val, 1, 128) >> 1;
for (i = 0; i < 6; i++) {
for (i = 0; i < 7; i++) {
if (val == 0)
break;
val >>= 1;
@ -1282,8 +1283,8 @@ w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
w83792d_init_client(new_client);
/* A few vars need to be filled upon startup */
for (i = 1; i <= 7; i++) {
data->fan_min[i - 1] = w83792d_read_value(new_client,
for (i = 0; i < 7; i++) {
data->fan_min[i] = w83792d_read_value(new_client,
W83792D_REG_FAN_MIN[i]);
}
@ -1306,10 +1307,20 @@ w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
device_create_file_fan(new_client, 1);
device_create_file_fan(new_client, 2);
device_create_file_fan(new_client, 3);
device_create_file_fan(new_client, 4);
device_create_file_fan(new_client, 5);
device_create_file_fan(new_client, 6);
device_create_file_fan(new_client, 7);
/* Read GPIO enable register to check if pins for fan 4,5 are used as
GPIO */
val1 = w83792d_read_value(new_client, W83792D_REG_GPIO_EN);
if (!(val1 & 0x40))
device_create_file_fan(new_client, 4);
if (!(val1 & 0x20))
device_create_file_fan(new_client, 5);
val1 = w83792d_read_value(new_client, W83792D_REG_PIN);
if (val1 & 0x40)
device_create_file_fan(new_client, 6);
if (val1 & 0x04)
device_create_file_fan(new_client, 7);
device_create_file_temp1(new_client); /* Temp1 */
device_create_file_temp_add(new_client, 2); /* Temp2 */

3
drivers/usb/atm/cxacru.c
View File

@ -787,6 +787,9 @@ static const struct usb_device_id cxacru_usb_ids[] = {
{ /* V = Conexant P = ADSL modem (Hasbani project) */
USB_DEVICE(0x0572, 0xcb00), .driver_info = (unsigned long) &cxacru_cb00
},
{ /* V = Conexant P = ADSL modem (Well PTI-800 */
USB_DEVICE(0x0572, 0xcb02), .driver_info = (unsigned long) &cxacru_cb00
},
{ /* V = Conexant P = ADSL modem */
USB_DEVICE(0x0572, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00
},

3
drivers/usb/core/hcd-pci.c
View File

@ -219,6 +219,7 @@ int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t message)
goto done;
}
}
synchronize_irq(dev->irq);
/* FIXME until the generic PM interfaces change a lot more, this
* can't use PCI D1 and D2 states. For example, the confusion
@ -392,7 +393,7 @@ int usb_hcd_pci_resume (struct pci_dev *dev)
dev->dev.power.power_state = PMSG_ON;
hcd->saw_irq = 0;
clear_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
if (hcd->driver->resume) {
retval = hcd->driver->resume(hcd);

15
drivers/usb/core/hcd.c
View File

@ -1315,11 +1315,12 @@ static int hcd_unlink_urb (struct urb *urb, int status)
* finish unlinking the initial failed usb_set_address()
* or device descriptor fetch.
*/
if (!hcd->saw_irq && hcd->self.root_hub != urb->dev) {
if (!test_bit(HCD_FLAG_SAW_IRQ, &hcd->flags)
&& hcd->self.root_hub != urb->dev) {
dev_warn (hcd->self.controller, "Unlink after no-IRQ? "
"Controller is probably using the wrong IRQ."
"\n");
hcd->saw_irq = 1;
set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
}
urb->status = status;
@ -1649,13 +1650,15 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd, struct pt_regs * r)
struct usb_hcd *hcd = __hcd;
int start = hcd->state;
if (start == HC_STATE_HALT)
if (unlikely(start == HC_STATE_HALT ||
!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)))
return IRQ_NONE;
if (hcd->driver->irq (hcd, r) == IRQ_NONE)
return IRQ_NONE;
hcd->saw_irq = 1;
if (hcd->state == HC_STATE_HALT)
set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
if (unlikely(hcd->state == HC_STATE_HALT))
usb_hc_died (hcd);
return IRQ_HANDLED;
}
@ -1768,6 +1771,8 @@ int usb_add_hcd(struct usb_hcd *hcd,
dev_info(hcd->self.controller, "%s\n", hcd->product_desc);
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
/* till now HC has been in an indeterminate state ... */
if (hcd->driver->reset && (retval = hcd->driver->reset(hcd)) < 0) {
dev_err(hcd->self.controller, "can't reset\n");

7
drivers/usb/core/hcd.h
View File

@ -72,7 +72,12 @@ struct usb_hcd { /* usb_bus.hcpriv points to this */
* hardware info/state
*/
const struct hc_driver *driver; /* hw-specific hooks */
unsigned saw_irq : 1;
/* Flags that need to be manipulated atomically */
unsigned long flags;
#define HCD_FLAG_HW_ACCESSIBLE 0x00000001
#define HCD_FLAG_SAW_IRQ 0x00000002
unsigned can_wakeup:1; /* hw supports wakeup? */
unsigned remote_wakeup:1;/* sw should use wakeup? */
unsigned rh_registered:1;/* is root hub registered? */

46
drivers/usb/host/ehci-pci.c
View File

@ -121,8 +121,8 @@ static int ehci_pci_reinit(struct ehci_hcd *ehci, struct pci_dev *pdev)
return 0;
}
/* called by khubd or root hub (re)init threads; leaves HC in halt state */
static int ehci_pci_reset(struct usb_hcd *hcd)
/* called during probe() after chip reset completes */
static int ehci_pci_setup(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
@ -141,6 +141,11 @@ static int ehci_pci_reset(struct usb_hcd *hcd)
if (retval)
return retval;
/* data structure init */
retval = ehci_init(hcd);
if (retval)
return retval;
/* NOTE: only the parts below this line are PCI-specific */
switch (pdev->vendor) {
@ -154,7 +159,8 @@ static int ehci_pci_reset(struct usb_hcd *hcd)
/* AMD8111 EHCI doesn't work, according to AMD errata */
if (pdev->device == 0x7463) {
ehci_info(ehci, "ignoring AMD8111 (errata)\n");
return -EIO;
retval = -EIO;
goto done;
}
break;
case PCI_VENDOR_ID_NVIDIA:
@ -207,9 +213,8 @@ static int ehci_pci_reset(struct usb_hcd *hcd)
/* REVISIT: per-port wake capability (PCI 0x62) currently unused */
retval = ehci_pci_reinit(ehci, pdev);
/* finish init */
return ehci_init(hcd);
done:
return retval;
}
/*-------------------------------------------------------------------------*/
@ -228,14 +233,36 @@ static int ehci_pci_reset(struct usb_hcd *hcd)
static int ehci_pci_suspend(struct usb_hcd *hcd, pm_message_t message)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
unsigned long flags;
int rc = 0;
if (time_before(jiffies, ehci->next_statechange))
msleep(10);
/* Root hub was already suspended. Disable irq emission and
* mark HW unaccessible, bail out if RH has been resumed. Use
* the spinlock to properly synchronize with possible pending
* RH suspend or resume activity.
*
* This is still racy as hcd->state is manipulated outside of
* any locks =P But that will be a different fix.
*/
spin_lock_irqsave (&ehci->lock, flags);
if (hcd->state != HC_STATE_SUSPENDED) {
rc = -EINVAL;
goto bail;
}
writel (0, &ehci->regs->intr_enable);
(void)readl(&ehci->regs->intr_enable);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
bail:
spin_unlock_irqrestore (&ehci->lock, flags);
// could save FLADJ in case of Vaux power loss
// ... we'd only use it to handle clock skew
return 0;
return rc;
}
static int ehci_pci_resume(struct usb_hcd *hcd)
@ -251,6 +278,9 @@ static int ehci_pci_resume(struct usb_hcd *hcd)
if (time_before(jiffies, ehci->next_statechange))
msleep(100);
/* Mark hardware accessible again as we are out of D3 state by now */
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
/* If CF is clear, we lost PCI Vaux power and need to restart. */
if (readl(&ehci->regs->configured_flag) != FLAG_CF)
goto restart;
@ -319,7 +349,7 @@ static const struct hc_driver ehci_pci_hc_driver = {
/*
* basic lifecycle operations
*/
.reset = ehci_pci_reset,
.reset = ehci_pci_setup,
.start = ehci_run,
#ifdef CONFIG_PM
.suspend = ehci_pci_suspend,

24
drivers/usb/host/ehci-q.c
View File

@ -912,6 +912,7 @@ submit_async (
int epnum;
unsigned long flags;
struct ehci_qh *qh = NULL;
int rc = 0;
qtd = list_entry (qtd_list->next, struct ehci_qtd, qtd_list);
epnum = ep->desc.bEndpointAddress;
@ -926,21 +927,28 @@ submit_async (
#endif
spin_lock_irqsave (&ehci->lock, flags);
if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
&ehci_to_hcd(ehci)->flags))) {
rc = -ESHUTDOWN;
goto done;
}
qh = qh_append_tds (ehci, urb, qtd_list, epnum, &ep->hcpriv);
if (unlikely(qh == NULL)) {
rc = -ENOMEM;
goto done;
}
/* Control/bulk operations through TTs don't need scheduling,
* the HC and TT handle it when the TT has a buffer ready.
*/
if (likely (qh != NULL)) {
if (likely (qh->qh_state == QH_STATE_IDLE))
qh_link_async (ehci, qh_get (qh));
}
if (likely (qh->qh_state == QH_STATE_IDLE))
qh_link_async (ehci, qh_get (qh));
done:
spin_unlock_irqrestore (&ehci->lock, flags);
if (unlikely (qh == NULL)) {
if (unlikely (qh == NULL))
qtd_list_free (ehci, urb, qtd_list);
return -ENOMEM;
}
return 0;
return rc;
}
/*-------------------------------------------------------------------------*/

18
drivers/usb/host/ehci-sched.c
View File

@ -602,6 +602,12 @@ static int intr_submit (
spin_lock_irqsave (&ehci->lock, flags);
if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
&ehci_to_hcd(ehci)->flags))) {
status = -ESHUTDOWN;
goto done;
}
/* get qh and force any scheduling errors */
INIT_LIST_HEAD (&empty);
qh = qh_append_tds (ehci, urb, &empty, epnum, &ep->hcpriv);
@ -1456,7 +1462,11 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb,
/* schedule ... need to lock */
spin_lock_irqsave (&ehci->lock, flags);
status = iso_stream_schedule (ehci, urb, stream);
if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
&ehci_to_hcd(ehci)->flags)))
status = -ESHUTDOWN;
else
status = iso_stream_schedule (ehci, urb, stream);
if (likely (status == 0))
itd_link_urb (ehci, urb, ehci->periodic_size << 3, stream);
spin_unlock_irqrestore (&ehci->lock, flags);
@ -1815,7 +1825,11 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb,
/* schedule ... need to lock */
spin_lock_irqsave (&ehci->lock, flags);
status = iso_stream_schedule (ehci, urb, stream);
if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE,
&ehci_to_hcd(ehci)->flags)))
status = -ESHUTDOWN;
else
status = iso_stream_schedule (ehci, urb, stream);
if (status == 0)
sitd_link_urb (ehci, urb, ehci->periodic_size << 3, stream);
spin_unlock_irqrestore (&ehci->lock, flags);

6
drivers/usb/host/ohci-hcd.c
View File

@ -115,7 +115,7 @@
/*-------------------------------------------------------------------------*/
// #define OHCI_VERBOSE_DEBUG /* not always helpful */
#undef OHCI_VERBOSE_DEBUG /* not always helpful */
/* For initializing controller (mask in an HCFS mode too) */
#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
@ -253,6 +253,10 @@ static int ohci_urb_enqueue (
spin_lock_irqsave (&ohci->lock, flags);
/* don't submit to a dead HC */
if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
retval = -ENODEV;
goto fail;
}
if (!HC_IS_RUNNING(hcd->state)) {
retval = -ENODEV;
goto fail;

24
drivers/usb/host/ohci-hub.c
View File

@ -53,6 +53,11 @@ static int ohci_bus_suspend (struct usb_hcd *hcd)
spin_lock_irqsave (&ohci->lock, flags);
if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) {
spin_unlock_irqrestore (&ohci->lock, flags);
return -ESHUTDOWN;
}
ohci->hc_control = ohci_readl (ohci, &ohci->regs->control);
switch (ohci->hc_control & OHCI_CTRL_HCFS) {
case OHCI_USB_RESUME:
@ -140,11 +145,19 @@ static int ohci_bus_resume (struct usb_hcd *hcd)
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
u32 temp, enables;
int status = -EINPROGRESS;
unsigned long flags;
if (time_before (jiffies, ohci->next_statechange))
msleep(5);
spin_lock_irq (&ohci->lock);
spin_lock_irqsave (&ohci->lock, flags);
if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) {
spin_unlock_irqrestore (&ohci->lock, flags);
return -ESHUTDOWN;
}
ohci->hc_control = ohci_readl (ohci, &ohci->regs->control);
if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
@ -179,7 +192,7 @@ static int ohci_bus_resume (struct usb_hcd *hcd)
ohci_dbg (ohci, "lost power\n");
status = -EBUSY;
}
spin_unlock_irq (&ohci->lock);
spin_unlock_irqrestore (&ohci->lock, flags);
if (status == -EBUSY) {
(void) ohci_init (ohci);
return ohci_restart (ohci);
@ -297,8 +310,8 @@ ohci_hub_status_data (struct usb_hcd *hcd, char *buf)
/* handle autosuspended root: finish resuming before
* letting khubd or root hub timer see state changes.
*/
if ((ohci->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_OPER
|| !HC_IS_RUNNING(hcd->state)) {
if (unlikely((ohci->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_OPER
|| !HC_IS_RUNNING(hcd->state))) {
can_suspend = 0;
goto done;
}
@ -508,6 +521,9 @@ static int ohci_hub_control (
u32 temp;
int retval = 0;
if (unlikely(!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)))
return -ESHUTDOWN;
switch (typeReq) {
case ClearHubFeature:
switch (wValue) {

27
drivers/usb/host/ohci-pci.c
View File

@ -105,13 +105,36 @@ ohci_pci_start (struct usb_hcd *hcd)
static int ohci_pci_suspend (struct usb_hcd *hcd, pm_message_t message)
{
/* root hub was already suspended */
return 0;
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
unsigned long flags;
int rc = 0;
/* Root hub was already suspended. Disable irq emission and
* mark HW unaccessible, bail out if RH has been resumed. Use
* the spinlock to properly synchronize with possible pending
* RH suspend or resume activity.
*
* This is still racy as hcd->state is manipulated outside of
* any locks =P But that will be a different fix.
*/
spin_lock_irqsave (&ohci->lock, flags);
if (hcd->state != HC_STATE_SUSPENDED) {
rc = -EINVAL;
goto bail;
}
ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
(void)ohci_readl(ohci, &ohci->regs->intrdisable);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
bail:
spin_unlock_irqrestore (&ohci->lock, flags);
return rc;
}
static int ohci_pci_resume (struct usb_hcd *hcd)
{
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
usb_hcd_resume_root_hub(hcd);
return 0;
}

6
drivers/usb/host/uhci-hcd.c
View File

@ -717,6 +717,7 @@ static int uhci_suspend(struct usb_hcd *hcd, pm_message_t message)
* at the source, so we must turn off PIRQ.
*/
pci_write_config_word(to_pci_dev(uhci_dev(uhci)), USBLEGSUP, 0);
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
uhci->hc_inaccessible = 1;
hcd->poll_rh = 0;
@ -733,6 +734,11 @@ static int uhci_resume(struct usb_hcd *hcd)
dev_dbg(uhci_dev(uhci), "%s\n", __FUNCTION__);
/* We aren't in D3 state anymore, we do that even if dead as I
* really don't want to keep a stale HCD_FLAG_HW_ACCESSIBLE=0
*/
set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
if (uhci->rh_state == UHCI_RH_RESET) /* Dead */
return 0;
spin_lock_irq(&uhci->lock);

1
include/linux/mm.h
View File

@ -956,6 +956,7 @@ struct page *vmalloc_to_page(void *addr);
unsigned long vmalloc_to_pfn(void *addr);
int remap_pfn_range(struct vm_area_struct *, unsigned long addr,
unsigned long pfn, unsigned long size, pgprot_t);
int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *);
struct page *follow_page(struct vm_area_struct *, unsigned long address,
unsigned int foll_flags);

36
mm/memory.c
View File

@ -1172,7 +1172,7 @@ static int insert_page(struct mm_struct *mm, unsigned long addr, struct page *pa
spinlock_t *ptl;
retval = -EINVAL;
if (PageAnon(page) || !PageReserved(page))
if (PageAnon(page))
goto out;
retval = -ENOMEM;
flush_dcache_page(page);
@ -1196,6 +1196,35 @@ out:
return retval;
}
/*
* This allows drivers to insert individual pages they've allocated
* into a user vma.
*
* The page has to be a nice clean _individual_ kernel allocation.
* If you allocate a compound page, you need to have marked it as
* such (__GFP_COMP), or manually just split the page up yourself
* (which is mainly an issue of doing "set_page_count(page, 1)" for
* each sub-page, and then freeing them one by one when you free
* them rather than freeing it as a compound page).
*
* NOTE! Traditionally this was done with "remap_pfn_range()" which
* took an arbitrary page protection parameter. This doesn't allow
* that. Your vma protection will have to be set up correctly, which
* means that if you want a shared writable mapping, you'd better
* ask for a shared writable mapping!
*
* The page does not need to be reserved.
*/
int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, struct page *page)
{
if (addr < vma->vm_start || addr >= vma->vm_end)
return -EFAULT;
if (!page_count(page))
return -EINVAL;
return insert_page(vma->vm_mm, addr, page, vma->vm_page_prot);
}
EXPORT_SYMBOL_GPL(vm_insert_page);
/*
* Somebody does a pfn remapping that doesn't actually work as a vma.
*
@ -1225,8 +1254,11 @@ static int incomplete_pfn_remap(struct vm_area_struct *vma,
if (!pfn_valid(pfn))
return -EINVAL;
retval = 0;
page = pfn_to_page(pfn);
if (!PageReserved(page))
return -EINVAL;
retval = 0;
while (start < end) {
retval = insert_page(vma->vm_mm, start, page, prot);
if (retval < 0)