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PCI/vgaarb: cleanup some warnings + cleanup some comments. 

Fix some warnings reported in linux-next + also cleanup some
comment errors noticed by Pekka Paalanen.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
hifive-unleashed-5.1
Dave Airlie 2009-08-19 15:21:57 +10:00 committed by Jesse Barnes
parent 6e19314cc9
commit 6ac3bd5270
2 changed files with 30 additions and 26 deletions
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11
drivers/gpu/vga/vgaarb.c
View File

@ -609,7 +609,6 @@ void vga_set_legacy_decoding(struct pci_dev *pdev, unsigned int decodes)
}
EXPORT_SYMBOL(vga_set_legacy_decoding);
/* return number of active VGA devices */
/* call with NULL to unregister */
int vga_client_register(struct pci_dev *pdev, void *cookie,
void (*irq_set_state)(void *cookie, bool state),
@ -831,7 +830,7 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
curr_pos += 5;
remaining -= 5;
pr_devel("client 0x%X called 'lock'\n", (int)priv);
pr_devel("client 0x%p called 'lock'\n", priv);
if (!vga_str_to_iostate(curr_pos, remaining, &io_state)) {
ret_val = -EPROTO;
@ -867,7 +866,7 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
curr_pos += 7;
remaining -= 7;
pr_devel("client 0x%X called 'unlock'\n", (int)priv);
pr_devel("client 0x%p called 'unlock'\n", priv);
if (strncmp(curr_pos, "all", 3) == 0)
io_state = VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM;
@ -917,7 +916,7 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
curr_pos += 8;
remaining -= 8;
pr_devel("client 0x%X called 'trylock'\n", (int)priv);
pr_devel("client 0x%p called 'trylock'\n", priv);
if (!vga_str_to_iostate(curr_pos, remaining, &io_state)) {
ret_val = -EPROTO;
@ -960,7 +959,7 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
curr_pos += 7;
remaining -= 7;
pr_devel("client 0x%X called 'target'\n", (int)priv);
pr_devel("client 0x%p called 'target'\n", priv);
/* if target is default */
if (!strncmp(buf, "default", 7))
pdev = pci_dev_get(vga_default_device());
@ -1014,7 +1013,7 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
} else if (strncmp(curr_pos, "decodes ", 8) == 0) {
curr_pos += 8;
remaining -= 8;
pr_devel("vgaarb: client 0x%X called 'decodes'\n", (int)priv);
pr_devel("vgaarb: client 0x%p called 'decodes'\n", priv);
if (!vga_str_to_iostate(curr_pos, remaining, &io_state)) {
ret_val = -EPROTO;

45
include/linux/vgaarb.h
View File

@ -46,9 +46,9 @@ extern void vga_set_legacy_decoding(struct pci_dev *pdev,
/**
* vga_get - acquire & locks VGA resources
*
* pdev: pci device of the VGA card or NULL for the system default
* rsrc: bit mask of resources to acquire and lock
* interruptible: blocking should be interruptible by signals ?
* @pdev: pci device of the VGA card or NULL for the system default
* @rsrc: bit mask of resources to acquire and lock
* @interruptible: blocking should be interruptible by signals ?
*
* This function acquires VGA resources for the given
* card and mark those resources locked. If the resource requested
@ -81,19 +81,19 @@ extern int vga_get(struct pci_dev *pdev, unsigned int rsrc,
*/
static inline int vga_get_interruptible(struct pci_dev *pdev,
unsigned int rsrc)
unsigned int rsrc)
{
return vga_get(pdev, rsrc, 1);
}
/**
* vga_get_interruptible
* vga_get_uninterruptible
*
* Shortcut to vga_get
*/
static inline int vga_get_uninterruptible(struct pci_dev *pdev,
unsigned int rsrc)
unsigned int rsrc)
{
return vga_get(pdev, rsrc, 0);
}
@ -165,28 +165,33 @@ static inline int vga_conflicts(struct pci_dev *p1, struct pci_dev *p2)
}
#endif
/*
* Register a client with the VGA arbitration logic
* return value: number of VGA devices in system.
/**
* vga_client_register
*
* Clients have two callback mechanisms they can use.
* irq enable/disable callback -
* If a client can't disable its GPUs VGA resources, then we
* need to be able to ask it to turn off its irqs when we
* turn off its mem and io decoding.
* set_vga_decode
* If a client can disable its GPU VGA resource, it will
* get a callback from this to set the encode/decode state
* @pdev: pci device of the VGA client
* @cookie: client cookie to be used in callbacks
* @irq_set_state: irq state change callback
* @set_vga_decode: vga decode change callback
*
* Clients with disable abilities should check the return value
* of this function and if the VGA device count is > 1, should
* disable VGA decoding resources.
* return value: 0 on success, -1 on failure
* Register a client with the VGA arbitration logic
*
* Clients have two callback mechanisms they can use.
* irq enable/disable callback -
* If a client can't disable its GPUs VGA resources, then we
* need to be able to ask it to turn off its irqs when we
* turn off its mem and io decoding.
* set_vga_decode
* If a client can disable its GPU VGA resource, it will
* get a callback from this to set the encode/decode state
*
* Rationale: we cannot disable VGA decode resources unconditionally
* some single GPU laptops seem to require ACPI or BIOS access to the
* VGA registers to control things like backlights etc.
* Hopefully newer multi-GPU laptops do something saner, and desktops
* won't have any special ACPI for this.
* They driver will get a callback when VGA arbitration is first used
* by userspace since we some older X servers have issues.
*/
int vga_client_register(struct pci_dev *pdev, void *cookie,
void (*irq_set_state)(void *cookie, bool state),