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drm/linux-core/xgi_drv.c

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/****************************************************************************
* Copyright (C) 2003-2006 by XGI Technology, Taiwan.
* *
* All Rights Reserved. *
* *
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation on the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
* *
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. IN NO EVENT SHALL XGI AND/OR
* ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
***************************************************************************/
#include "xgi_types.h"
#include "xgi_linux.h"
#include "xgi_drv.h"
#include "xgi_regs.h"
#include "xgi_pcie.h"
#include "xgi_misc.h"
#include "xgi_cmdlist.h"
/* for debug */
static int xgi_temp = 1;
/*
* global parameters
*/
static struct xgi_dev {
u16 vendor;
u16 device;
const char *name;
} xgidev_list[] = {
{
PCI_VENDOR_ID_XGI, PCI_DEVICE_ID_XP5, "XP5"}, {
PCI_VENDOR_ID_XGI, PCI_DEVICE_ID_XG47, "XG47"}, {
0, 0, NULL}
};
int xgi_major = XGI_DEV_MAJOR; /* xgi reserved major device number. */
static int xgi_num_devices = 0;
struct xgi_info xgi_devices[XGI_MAX_DEVICES];
#if defined(XGI_PM_SUPPORT_APM)
static struct pm_dev *apm_xgi_dev[XGI_MAX_DEVICES] = { 0 };
#endif
/* add one for the control device */
struct xgi_info xgi_ctl_device;
wait_queue_head_t xgi_ctl_waitqueue;
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *proc_xgi;
#endif
#ifdef CONFIG_DEVFS_FS
devfs_handle_t xgi_devfs_handles[XGI_MAX_DEVICES];
#endif
struct list_head xgi_mempid_list;
/* xgi_ functions.. do not take a state device parameter */
static int xgi_post_vbios(struct xgi_ioctl_post_vbios * info);
static void xgi_proc_create(void);
static void xgi_proc_remove_all(struct proc_dir_entry *);
static void xgi_proc_remove(void);
/* xgi_kern_ functions, interfaces used by linux kernel */
int xgi_kern_probe(struct pci_dev *, const struct pci_device_id *);
unsigned int xgi_kern_poll(struct file *, poll_table *);
int xgi_kern_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
int xgi_kern_mmap(struct file *, struct vm_area_struct *);
int xgi_kern_open(struct inode *, struct file *);
int xgi_kern_release(struct inode *inode, struct file *filp);
void xgi_kern_vma_open(struct vm_area_struct *vma);
void xgi_kern_vma_release(struct vm_area_struct *vma);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 1))
struct page *xgi_kern_vma_nopage(struct vm_area_struct *vma,
unsigned long address, int *type);
#else
struct page *xgi_kern_vma_nopage(struct vm_area_struct *vma,
unsigned long address, int write_access);
#endif
int xgi_kern_read_card_info(char *, char **, off_t off, int, int *, void *);
int xgi_kern_read_status(char *, char **, off_t off, int, int *, void *);
int xgi_kern_read_pcie_info(char *, char **, off_t off, int, int *, void *);
int xgi_kern_read_version(char *, char **, off_t off, int, int *, void *);
int xgi_kern_ctl_open(struct inode *, struct file *);
int xgi_kern_ctl_close(struct inode *, struct file *);
unsigned int xgi_kern_ctl_poll(struct file *, poll_table *);
void xgi_kern_isr_bh(unsigned long);
irqreturn_t xgi_kern_isr(int, void *, struct pt_regs *);
static void xgi_lock_init(struct xgi_info * info);
#if defined(XGI_PM_SUPPORT_ACPI)
int xgi_kern_acpi_standby(struct pci_dev *, u32);
int xgi_kern_acpi_resume(struct pci_dev *);
#endif
/*
* verify access to pci config space wasn't disabled behind our back
* unfortunately, XFree86 enables/disables memory access in pci config space at
* various times (such as restoring initial pci config space settings during vt
* switches or when doing mulicard). As a result, all of our register accesses
* are garbage at this point. add a check to see if access was disabled and
* reenable any such access.
*/
#define XGI_CHECK_PCI_CONFIG(xgi) \
xgi_check_pci_config(xgi, __LINE__)
static inline void xgi_check_pci_config(struct xgi_info * info, int line)
{
unsigned short cmd, flag = 0;
// don't do this on the control device, only the actual devices
if (info->flags & XGI_FLAG_CONTROL)
return;
pci_read_config_word(info->dev, PCI_COMMAND, &cmd);
if (!(cmd & PCI_COMMAND_MASTER)) {
XGI_INFO("restoring bus mastering! (%d)\n", line);
cmd |= PCI_COMMAND_MASTER;
flag = 1;
}
if (!(cmd & PCI_COMMAND_MEMORY)) {
XGI_INFO("restoring MEM access! (%d)\n", line);
cmd |= PCI_COMMAND_MEMORY;
flag = 1;
}
if (flag)
pci_write_config_word(info->dev, PCI_COMMAND, cmd);
}
/*
* struct pci_device_id {
* unsigned int vendor, device; // Vendor and device ID or PCI_ANY_ID
* unsigned int subvendor, subdevice; // Subsystem ID's or PCI_ANY_ID
* unsigned int class, class_mask; // (class,subclass,prog-if) triplet
* unsigned long driver_data; // Data private to the driver
* };
*/
static struct pci_device_id xgi_dev_table[] = {
{
.vendor = PCI_VENDOR_ID_XGI,
.device = PCI_ANY_ID,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.class = (PCI_CLASS_DISPLAY_VGA << 8),
.class_mask = ~0,
},
{}
};
/*
* #define MODULE_DEVICE_TABLE(type,name) \
* MODULE_GENERIC_TABLE(type##_device,name)
*/
MODULE_DEVICE_TABLE(pci, xgi_dev_table);
/*
* struct pci_driver {
* struct list_head node;
* char *name;
* const struct pci_device_id *id_table; // NULL if wants all devices
* int (*probe)(struct pci_dev *dev, const struct pci_device_id *id); // New device inserted
* void (*remove)(struct pci_dev *dev); // Device removed (NULL if not a hot-plug capable driver)
* int (*save_state)(struct pci_dev *dev, u32 state); // Save Device Context
* int (*suspend)(struct pci_dev *dev, u32 state); // Device suspended
* int (*resume)(struct pci_dev *dev); // Device woken up
* int (*enable_wake)(struct pci_dev *dev, u32 state, int enable); // Enable wake event
* };
*/
static struct pci_driver xgi_pci_driver = {
.name = "xgi",
.id_table = xgi_dev_table,
.probe = xgi_kern_probe,
#if defined(XGI_SUPPORT_ACPI)
.suspend = xgi_kern_acpi_standby,
.resume = xgi_kern_acpi_resume,
#endif
};
/*
* find xgi devices and set initial state
*/
int xgi_kern_probe(struct pci_dev *dev, const struct pci_device_id *id_table)
{
struct xgi_info *info;
if ((dev->vendor != PCI_VENDOR_ID_XGI)
|| (dev->class != (PCI_CLASS_DISPLAY_VGA << 8))) {
return -1;
}
if (xgi_num_devices == XGI_MAX_DEVICES) {
XGI_INFO("maximum device number (%d) reached!\n",
xgi_num_devices);
return -1;
}
/* enable io, mem, and bus-mastering in pci config space */
if (pci_enable_device(dev) != 0) {
XGI_INFO("pci_enable_device failed, aborting\n");
return -1;
}
XGI_INFO("maximum device number (%d) reached \n", xgi_num_devices);
pci_set_master(dev);
info = &xgi_devices[xgi_num_devices];
info->dev = dev;
info->vendor_id = dev->vendor;
info->device_id = dev->device;
info->bus = dev->bus->number;
info->slot = PCI_SLOT((dev)->devfn);
xgi_lock_init(info);
info->mmio.base = XGI_PCI_RESOURCE_START(dev, 1);
info->mmio.size = XGI_PCI_RESOURCE_SIZE(dev, 1);
/* check IO region */
if (!request_mem_region(info->mmio.base, info->mmio.size, "xgi")) {
XGI_ERROR("cannot reserve MMIO memory\n");
goto error_disable_dev;
}
XGI_INFO("info->mmio.base: 0x%lx \n", info->mmio.base);
XGI_INFO("info->mmio.size: 0x%lx \n", info->mmio.size);
info->mmio.vbase = (unsigned char *)ioremap_nocache(info->mmio.base,
info->mmio.size);
if (!info->mmio.vbase) {
release_mem_region(info->mmio.base, info->mmio.size);
XGI_ERROR("info->mmio.vbase failed\n");
goto error_disable_dev;
}
xgi_enable_mmio(info);
//xgi_enable_ge(info);
XGI_INFO("info->mmio.vbase: 0x%p \n", info->mmio.vbase);
info->fb.base = XGI_PCI_RESOURCE_START(dev, 0);
info->fb.size = XGI_PCI_RESOURCE_SIZE(dev, 0);
XGI_INFO("info->fb.base: 0x%lx \n", info->fb.base);
XGI_INFO("info->fb.size: 0x%lx \n", info->fb.size);
info->fb.size = bIn3cf(0x54) * 8 * 1024 * 1024;
XGI_INFO("info->fb.size: 0x%lx \n", info->fb.size);
/* check frame buffer region
if (!request_mem_region(info->fb.base, info->fb.size, "xgi"))
{
release_mem_region(info->mmio.base, info->mmio.size);
XGI_ERROR("cannot reserve frame buffer memory\n");
goto error_disable_dev;
}
info->fb.vbase = (unsigned char *)ioremap_nocache(info->fb.base,
info->fb.size);
if (!info->fb.vbase)
{
release_mem_region(info->mmio.base, info->mmio.size);
release_mem_region(info->fb.base, info->fb.size);
XGI_ERROR("info->fb.vbase failed\n");
goto error_disable_dev;
}
*/
info->fb.vbase = NULL;
XGI_INFO("info->fb.vbase: 0x%p \n", info->fb.vbase);
info->irq = dev->irq;
/* check common error condition */
if (info->irq == 0) {
XGI_ERROR("Can't find an IRQ for your XGI card! \n");
goto error_zero_dev;
}
XGI_INFO("info->irq: %lx \n", info->irq);
//xgi_enable_dvi_interrupt(info);
/* sanity check the IO apertures */
if ((info->mmio.base == 0) || (info->mmio.size == 0)
|| (info->fb.base == 0) || (info->fb.size == 0)) {
XGI_ERROR("The IO regions for your XGI card are invalid.\n");
if ((info->mmio.base == 0) || (info->mmio.size == 0)) {
XGI_ERROR("mmio appears to be wrong: 0x%lx 0x%lx\n",
info->mmio.base, info->mmio.size);
}
if ((info->fb.base == 0) || (info->fb.size == 0)) {
XGI_ERROR
("frame buffer appears to be wrong: 0x%lx 0x%lx\n",
info->fb.base, info->fb.size);
}
goto error_zero_dev;
}
//xgi_num_devices++;
return 0;
error_zero_dev:
release_mem_region(info->fb.base, info->fb.size);
release_mem_region(info->mmio.base, info->mmio.size);
error_disable_dev:
pci_disable_device(dev);
return -1;
}
/*
* vma operations...
* this is only called when the vmas are duplicated. this
* appears to only happen when the process is cloned to create
* a new process, and not when the process is threaded.
*
* increment the usage count for the physical pages, so when
* this clone unmaps the mappings, the pages are not
* deallocated under the original process.
*/
struct vm_operations_struct xgi_vm_ops = {
.open = xgi_kern_vma_open,
.close = xgi_kern_vma_release,
.nopage = xgi_kern_vma_nopage,
};
void xgi_kern_vma_open(struct vm_area_struct *vma)
{
XGI_INFO("VM: vma_open for 0x%lx - 0x%lx, offset 0x%lx\n",
vma->vm_start, vma->vm_end, XGI_VMA_OFFSET(vma));
if (XGI_VMA_PRIVATE(vma)) {
struct xgi_pcie_block *block =
(struct xgi_pcie_block *) XGI_VMA_PRIVATE(vma);
XGI_ATOMIC_INC(block->use_count);
}
}
void xgi_kern_vma_release(struct vm_area_struct *vma)
{
XGI_INFO("VM: vma_release for 0x%lx - 0x%lx, offset 0x%lx\n",
vma->vm_start, vma->vm_end, XGI_VMA_OFFSET(vma));
if (XGI_VMA_PRIVATE(vma)) {
struct xgi_pcie_block *block =
(struct xgi_pcie_block *) XGI_VMA_PRIVATE(vma);
XGI_ATOMIC_DEC(block->use_count);
/*
* if use_count is down to 0, the kernel virtual mapping was freed
* but the underlying physical pages were not, we need to clear the
* bit and free the physical pages.
*/
if (XGI_ATOMIC_READ(block->use_count) == 0) {
// Need TO Finish
XGI_VMA_PRIVATE(vma) = NULL;
}
}
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 1))
struct page *xgi_kern_vma_nopage(struct vm_area_struct *vma,
unsigned long address, int *type)
{
struct xgi_pcie_block *block = (struct xgi_pcie_block *) XGI_VMA_PRIVATE(vma);
struct page *page = NOPAGE_SIGBUS;
unsigned long offset = 0;
unsigned long page_addr = 0;
/*
XGI_INFO("VM: mmap([0x%lx-0x%lx] off=0x%lx) address: 0x%lx \n",
vma->vm_start,
vma->vm_end,
XGI_VMA_OFFSET(vma),
address);
*/
offset = (address - vma->vm_start) + XGI_VMA_OFFSET(vma);
offset = offset - block->bus_addr;
offset >>= PAGE_SHIFT;
page_addr = block->page_table[offset].virt_addr;
if (xgi_temp) {
XGI_INFO("block->bus_addr: 0x%lx block->hw_addr: 0x%lx"
"block->page_count: 0x%lx block->page_order: 0x%lx"
"block->page_table[0x%lx].virt_addr: 0x%lx\n",
block->bus_addr, block->hw_addr,
block->page_count, block->page_order,
offset, block->page_table[offset].virt_addr);
xgi_temp = 0;
}
if (!page_addr)
goto out; /* hole or end-of-file */
page = virt_to_page(page_addr);
/* got it, now increment the count */
get_page(page);
out:
return page;
}
#else
struct page *xgi_kern_vma_nopage(struct vm_area_struct *vma,
unsigned long address, int write_access)
{
struct xgi_pcie_block *block = (struct xgi_pcie_block *) XGI_VMA_PRIVATE(vma);
struct page *page = NOPAGE_SIGBUS;
unsigned long offset = 0;
unsigned long page_addr = 0;
/*
XGI_INFO("VM: mmap([0x%lx-0x%lx] off=0x%lx) address: 0x%lx \n",
vma->vm_start,
vma->vm_end,
XGI_VMA_OFFSET(vma),
address);
*/
offset = (address - vma->vm_start) + XGI_VMA_OFFSET(vma);
offset = offset - block->bus_addr;
offset >>= PAGE_SHIFT;
page_addr = block->page_table[offset].virt_addr;
if (xgi_temp) {
XGI_INFO("block->bus_addr: 0x%lx block->hw_addr: 0x%lx"
"block->page_count: 0x%lx block->page_order: 0x%lx"
"block->page_table[0x%lx].virt_addr: 0x%lx\n",
block->bus_addr, block->hw_addr,
block->page_count, block->page_order,
offset, block->page_table[offset].virt_addr);
xgi_temp = 0;
}
if (!page_addr)
goto out; /* hole or end-of-file */
page = virt_to_page(page_addr);
/* got it, now increment the count */
get_page(page);
out:
return page;
}
#endif
#if 0
static struct file_operations xgi_fops = {
/* owner: THIS_MODULE, */
poll:xgi_kern_poll,
ioctl:xgi_kern_ioctl,
mmap:xgi_kern_mmap,
open:xgi_kern_open,
release:xgi_kern_release,
};
#endif
static struct file_operations xgi_fops = {
.owner = THIS_MODULE,
.poll = xgi_kern_poll,
.ioctl = xgi_kern_ioctl,
.mmap = xgi_kern_mmap,
.open = xgi_kern_open,
.release = xgi_kern_release,
};
static struct xgi_file_private *xgi_alloc_file_private(void)
{
struct xgi_file_private *fp;
XGI_KMALLOC(fp, sizeof(struct xgi_file_private));
if (!fp)
return NULL;
memset(fp, 0, sizeof(struct xgi_file_private));
/* initialize this file's event queue */
init_waitqueue_head(&fp->wait_queue);
xgi_init_lock(fp->fp_lock);
return fp;
}
static void xgi_free_file_private(struct xgi_file_private * fp)
{
if (fp == NULL)
return;
XGI_KFREE(fp, sizeof(struct xgi_file_private));
}
int xgi_kern_open(struct inode *inode, struct file *filp)
{
struct xgi_info *info = NULL;
int dev_num;
int result = 0, status;
/*
* the type and num values are only valid if we are not using devfs.
* However, since we use them to retrieve the device pointer, we
* don't need them with devfs as filp->private_data is already
* initialized
*/
filp->private_data = xgi_alloc_file_private();
if (filp->private_data == NULL)
return -ENOMEM;
XGI_INFO("filp->private_data %p\n", filp->private_data);
/*
* for control device, just jump to its open routine
* after setting up the private data
*/
if (XGI_IS_CONTROL_DEVICE(inode))
return xgi_kern_ctl_open(inode, filp);
/* what device are we talking about? */
dev_num = XGI_DEVICE_NUMBER(inode);
if (dev_num >= XGI_MAX_DEVICES) {
xgi_free_file_private(filp->private_data);
filp->private_data = NULL;
return -ENODEV;
}
info = &xgi_devices[dev_num];
XGI_INFO("Jong-xgi_kern_open on device %d\n", dev_num);
xgi_down(info->info_sem);
XGI_CHECK_PCI_CONFIG(info);
XGI_INFO_FROM_FP(filp) = info;
/*
* map the memory and allocate isr on first open
*/
if (!(info->flags & XGI_FLAG_OPEN)) {
XGI_INFO("info->flags & XGI_FLAG_OPEN \n");
if (info->device_id == 0) {
XGI_INFO("open of nonexistent device %d\n", dev_num);
result = -ENXIO;
goto failed;
}
/* initialize struct irqaction */
status = request_irq(info->irq, xgi_kern_isr,
SA_INTERRUPT | SA_SHIRQ, "xgi",
(void *)info);
if (status != 0) {
if (info->irq && (status == -EBUSY)) {
XGI_ERROR
("Tried to get irq %d, but another driver",
(unsigned int)info->irq);
XGI_ERROR("has it and is not sharing it.\n");
}
XGI_ERROR("isr request failed 0x%x\n", status);
result = -EIO;
goto failed;
}
/*
* #define DECLARE_TASKLET(name, func, data) \
* struct tasklet_struct name = { NULL, 0, ATOMIC_INIT(0), func, data }
*/
info->tasklet.func = xgi_kern_isr_bh;
info->tasklet.data = (unsigned long)info;
tasklet_enable(&info->tasklet);
/* Alloc 1M bytes for cmdbuffer which is flush2D batch array */
xgi_cmdlist_initialize(info, 0x100000);
info->flags |= XGI_FLAG_OPEN;
}
XGI_ATOMIC_INC(info->use_count);
failed:
xgi_up(info->info_sem);
if ((result) && filp->private_data) {
xgi_free_file_private(filp->private_data);
filp->private_data = NULL;
}
return result;
}
int xgi_kern_release(struct inode *inode, struct file *filp)
{
struct xgi_info *info = XGI_INFO_FROM_FP(filp);
XGI_CHECK_PCI_CONFIG(info);
/*
* for control device, just jump to its open routine
* after setting up the private data
*/
if (XGI_IS_CONTROL_DEVICE(inode))
return xgi_kern_ctl_close(inode, filp);
XGI_INFO("Jong-xgi_kern_release on device %d\n",
XGI_DEVICE_NUMBER(inode));
xgi_down(info->info_sem);
if (XGI_ATOMIC_DEC_AND_TEST(info->use_count)) {
/*
* The usage count for this device has dropped to zero, it can be shut
* down safely; disable its interrupts.
*/
/*
* Disable this device's tasklet to make sure that no bottom half will
* run with undefined device state.
*/
tasklet_disable(&info->tasklet);
/*
* Free the IRQ, which may block until all pending interrupt processing
* has completed.
*/
free_irq(info->irq, (void *)info);
xgi_cmdlist_cleanup(info);
/* leave INIT flag alone so we don't reinit every time */
info->flags &= ~XGI_FLAG_OPEN;
}
xgi_up(info->info_sem);
if (FILE_PRIVATE(filp)) {
xgi_free_file_private(FILE_PRIVATE(filp));
FILE_PRIVATE(filp) = NULL;
}
return 0;
}
int xgi_kern_mmap(struct file *filp, struct vm_area_struct *vma)
{
//struct inode *inode = INODE_FROM_FP(filp);
struct xgi_info *info = XGI_INFO_FROM_FP(filp);
struct xgi_pcie_block *block;
int pages = 0;
unsigned long prot;
XGI_INFO("Jong-VM: mmap([0x%lx-0x%lx] off=0x%lx)\n",
vma->vm_start, vma->vm_end, XGI_VMA_OFFSET(vma));
XGI_CHECK_PCI_CONFIG(info);
if (XGI_MASK_OFFSET(vma->vm_start)
|| XGI_MASK_OFFSET(vma->vm_end)) {
XGI_ERROR("VM: bad mmap range: %lx - %lx\n",
vma->vm_start, vma->vm_end);
return -ENXIO;
}
pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
vma->vm_ops = &xgi_vm_ops;
/* XGI IO(reg) space */
if (IS_IO_OFFSET
(info, XGI_VMA_OFFSET(vma), vma->vm_end - vma->vm_start)) {
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (XGI_REMAP_PAGE_RANGE(vma->vm_start,
XGI_VMA_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
/* mark it as IO so that we don't dump it on core dump */
vma->vm_flags |= VM_IO;
XGI_INFO("VM: mmap io space \n");
}
/* XGI fb space */
/* Jong 06/14/2006; moved behind PCIE or modify IS_FB_OFFSET */
else if (IS_FB_OFFSET
(info, XGI_VMA_OFFSET(vma), vma->vm_end - vma->vm_start)) {
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (XGI_REMAP_PAGE_RANGE(vma->vm_start,
XGI_VMA_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
// mark it as IO so that we don't dump it on core dump
vma->vm_flags |= VM_IO;
XGI_INFO("VM: mmap fb space \n");
}
/* PCIE allocator */
/* XGI_VMA_OFFSET(vma) is offset based on pcie.base (HW address space) */
else if (IS_PCIE_OFFSET
(info, XGI_VMA_OFFSET(vma), vma->vm_end - vma->vm_start)) {
xgi_down(info->pcie_sem);
block = xgi_find_pcie_block(info, XGI_VMA_OFFSET(vma));
if (block == NULL) {
XGI_ERROR("couldn't find pre-allocated PCIE memory!\n");
xgi_up(info->pcie_sem);
return -EAGAIN;
}
if (block->page_count != pages) {
XGI_ERROR
("pre-allocated PCIE memory has wrong number of pages!\n");
xgi_up(info->pcie_sem);
return -EAGAIN;
}
vma->vm_private_data = block;
XGI_ATOMIC_INC(block->use_count);
xgi_up(info->pcie_sem);
/*
* prevent the swapper from swapping it out
* mark the memory i/o so the buffers aren't
* dumped on core dumps */
vma->vm_flags |= (VM_LOCKED | VM_IO);
/* un-cached */
prot = pgprot_val(vma->vm_page_prot);
/*
if (boot_cpu_data.x86 > 3)
prot |= _PAGE_PCD | _PAGE_PWT;
*/
vma->vm_page_prot = __pgprot(prot);
XGI_INFO("VM: mmap pcie space \n");
}
#if 0
else if (IS_FB_OFFSET
(info, XGI_VMA_OFFSET(vma), vma->vm_end - vma->vm_start)) {
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (XGI_REMAP_PAGE_RANGE(vma->vm_start,
XGI_VMA_OFFSET(vma),
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
// mark it as IO so that we don't dump it on core dump
vma->vm_flags |= VM_IO;
XGI_INFO("VM: mmap fb space \n");
}
#endif
else {
vma->vm_flags |= (VM_IO | VM_LOCKED);
XGI_ERROR("VM: mmap wrong range \n");
}
vma->vm_file = filp;
return 0;
}
unsigned int xgi_kern_poll(struct file *filp, struct poll_table_struct *wait)
{
struct xgi_file_private *fp;
struct xgi_info *info;
unsigned int mask = 0;
unsigned long eflags;
info = XGI_INFO_FROM_FP(filp);
if (info->device_number == XGI_CONTROL_DEVICE_NUMBER)
return xgi_kern_ctl_poll(filp, wait);
fp = XGI_GET_FP(filp);
if (!(filp->f_flags & O_NONBLOCK)) {
/* add us to the list */
poll_wait(filp, &fp->wait_queue, wait);
}
xgi_lock_irqsave(fp->fp_lock, eflags);
/* wake the user on any event */
if (fp->num_events) {
XGI_INFO("Hey, an event occured!\n");
/*
* trigger the client, when they grab the event,
* we'll decrement the event count
*/
mask |= (POLLPRI | POLLIN);
}
xgi_unlock_irqsave(fp->fp_lock, eflags);
return mask;
}
int xgi_kern_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
struct xgi_info *info;
struct xgi_mem_alloc *alloc = NULL;
int status = 0;
void *arg_copy;
int arg_size;
int err = 0;
info = XGI_INFO_FROM_FP(filp);
XGI_INFO("Jong-ioctl(0x%x, 0x%x, 0x%lx, 0x%x)\n", _IOC_TYPE(cmd),
_IOC_NR(cmd), arg, _IOC_SIZE(cmd));
/*
* extract the type and number bitfields, and don't decode
* wrong cmds: return ENOTTY (inappropriate ioctl) before access_ok()
*/
if (_IOC_TYPE(cmd) != XGI_IOCTL_MAGIC)
return -ENOTTY;
if (_IOC_NR(cmd) > XGI_IOCTL_MAXNR)
return -ENOTTY;
/*
* the direction is a bitmask, and VERIFY_WRITE catches R/W
* transfers. `Type' is user-oriented, while
* access_ok is kernel-oriented, so the concept of "read" and
* "write" is reversed
*/
if (_IOC_DIR(cmd) & _IOC_READ) {
err = !access_ok(VERIFY_WRITE, (void *)arg, _IOC_SIZE(cmd));
} else if (_IOC_DIR(cmd) & _IOC_WRITE) {
err = !access_ok(VERIFY_READ, (void *)arg, _IOC_SIZE(cmd));
}
if (err)
return -EFAULT;
XGI_CHECK_PCI_CONFIG(info);
arg_size = _IOC_SIZE(cmd);
XGI_KMALLOC(arg_copy, arg_size);
if (arg_copy == NULL) {
XGI_ERROR("failed to allocate ioctl memory\n");
return -ENOMEM;
}
/* Jong 05/25/2006 */
/* copy_from_user(arg_copy, (void *)arg, arg_size); */
if (copy_from_user(arg_copy, (void *)arg, arg_size)) {
XGI_ERROR("failed to copyin ioctl data\n");
XGI_INFO("Jong-copy_from_user-fail! \n");
} else
XGI_INFO("Jong-copy_from_user-OK! \n");
alloc = (struct xgi_mem_alloc *) arg_copy;
XGI_INFO("Jong-succeeded in copy_from_user 0x%lx, 0x%x bytes.\n", arg,
arg_size);
switch (_IOC_NR(cmd)) {
case XGI_ESC_DEVICE_INFO:
XGI_INFO("Jong-xgi_ioctl_get_device_info \n");
xgi_get_device_info(info, (struct xgi_chip_info *)arg_copy);
break;
case XGI_ESC_POST_VBIOS:
XGI_INFO("Jong-xgi_ioctl_post_vbios \n");
break;
case XGI_ESC_FB_ALLOC:
XGI_INFO("Jong-xgi_ioctl_fb_alloc \n");
xgi_fb_alloc(info, (struct xgi_mem_req *)arg_copy, alloc);
break;
case XGI_ESC_FB_FREE:
XGI_INFO("Jong-xgi_ioctl_fb_free \n");
xgi_fb_free(info, *(unsigned long *)arg_copy);
break;
case XGI_ESC_MEM_COLLECT:
XGI_INFO("Jong-xgi_ioctl_mem_collect \n");
xgi_mem_collect(info, (unsigned int *)arg_copy);
break;
case XGI_ESC_PCIE_ALLOC:
XGI_INFO("Jong-xgi_ioctl_pcie_alloc \n");
xgi_pcie_alloc(info, ((struct xgi_mem_req *) arg_copy)->size,
((struct xgi_mem_req *) arg_copy)->owner, alloc);
break;
case XGI_ESC_PCIE_FREE:
XGI_INFO("Jong-xgi_ioctl_pcie_free: bus_addr = 0x%lx \n",
*((unsigned long *)arg_copy));
xgi_pcie_free(info, *((unsigned long *)arg_copy));
break;
case XGI_ESC_PCIE_CHECK:
XGI_INFO("Jong-xgi_pcie_heap_check \n");
xgi_pcie_heap_check();
break;
case XGI_ESC_GET_SCREEN_INFO:
XGI_INFO("Jong-xgi_get_screen_info \n");
xgi_get_screen_info(info, (struct xgi_screen_info *)arg_copy);
break;
case XGI_ESC_PUT_SCREEN_INFO:
XGI_INFO("Jong-xgi_put_screen_info \n");
xgi_put_screen_info(info, (struct xgi_screen_info *)arg_copy);
break;
case XGI_ESC_MMIO_INFO:
XGI_INFO("Jong-xgi_ioctl_get_mmio_info \n");
xgi_get_mmio_info(info, (struct xgi_mmio_info *)arg_copy);
break;
case XGI_ESC_GE_RESET:
XGI_INFO("Jong-xgi_ioctl_ge_reset \n");
xgi_ge_reset(info);
break;
case XGI_ESC_SAREA_INFO:
XGI_INFO("Jong-xgi_ioctl_sarea_info \n");
xgi_sarea_info(info, (struct xgi_sarea_info *)arg_copy);
break;
case XGI_ESC_DUMP_REGISTER:
XGI_INFO("Jong-xgi_ioctl_dump_register \n");
xgi_dump_register(info);
break;
case XGI_ESC_DEBUG_INFO:
XGI_INFO("Jong-xgi_ioctl_restore_registers \n");
xgi_restore_registers(info);
//xgi_write_pcie_mem(info, (struct xgi_mem_req *) arg_copy);
//xgi_read_pcie_mem(info, (struct xgi_mem_req *) arg_copy);
break;
case XGI_ESC_SUBMIT_CMDLIST:
XGI_INFO("Jong-xgi_ioctl_submit_cmdlist \n");
xgi_submit_cmdlist(info, (struct xgi_cmd_info *) arg_copy);
break;
case XGI_ESC_TEST_RWINKERNEL:
XGI_INFO("Jong-xgi_test_rwinkernel \n");
xgi_test_rwinkernel(info, *(unsigned long *)arg_copy);
break;
case XGI_ESC_STATE_CHANGE:
XGI_INFO("Jong-xgi_state_change \n");
xgi_state_change(info, (struct xgi_state_info *) arg_copy);
break;
case XGI_ESC_CPUID:
XGI_INFO("Jong-XGI_ESC_CPUID \n");
xgi_get_cpu_id((struct cpu_info *)arg_copy);
break;
default:
XGI_INFO("Jong-xgi_ioctl_default \n");
status = -EINVAL;
break;
}
if (copy_to_user((void *)arg, arg_copy, arg_size)) {
XGI_ERROR("failed to copyout ioctl data\n");
XGI_INFO("Jong-copy_to_user-fail! \n");
} else
XGI_INFO("Jong-copy_to_user-OK! \n");
XGI_KFREE(arg_copy, arg_size);
return status;
}
/*
* xgi control driver operations defined here
*/
int xgi_kern_ctl_open(struct inode *inode, struct file *filp)
{
struct xgi_info *info = &xgi_ctl_device;
int rc = 0;
XGI_INFO("Jong-xgi_kern_ctl_open\n");
xgi_down(info->info_sem);
info->device_number = XGI_CONTROL_DEVICE_NUMBER;
/* save the xgi info in file->private_data */
filp->private_data = info;
if (XGI_ATOMIC_READ(info->use_count) == 0) {
init_waitqueue_head(&xgi_ctl_waitqueue);
}
info->flags |= XGI_FLAG_OPEN + XGI_FLAG_CONTROL;
XGI_ATOMIC_INC(info->use_count);
xgi_up(info->info_sem);
return rc;
}
int xgi_kern_ctl_close(struct inode *inode, struct file *filp)
{
struct xgi_info *info = XGI_INFO_FROM_FP(filp);
XGI_INFO("Jong-xgi_kern_ctl_close\n");
xgi_down(info->info_sem);
if (XGI_ATOMIC_DEC_AND_TEST(info->use_count)) {
info->flags = 0;
}
xgi_up(info->info_sem);
if (FILE_PRIVATE(filp)) {
xgi_free_file_private(FILE_PRIVATE(filp));
FILE_PRIVATE(filp) = NULL;
}
return 0;
}
unsigned int xgi_kern_ctl_poll(struct file *filp, poll_table * wait)
{
//struct xgi_info *info = XGI_INFO_FROM_FP(filp);;
unsigned int ret = 0;
if (!(filp->f_flags & O_NONBLOCK)) {
poll_wait(filp, &xgi_ctl_waitqueue, wait);
}
return ret;
}
/*
* xgi proc system
*/
static u8 xgi_find_pcie_capability(struct pci_dev *dev)
{
u16 status;
u8 cap_ptr, cap_id;
pci_read_config_word(dev, PCI_STATUS, &status);
status &= PCI_STATUS_CAP_LIST;
if (!status)
return 0;
switch (dev->hdr_type) {
case PCI_HEADER_TYPE_NORMAL:
case PCI_HEADER_TYPE_BRIDGE:
pci_read_config_byte(dev, PCI_CAPABILITY_LIST, &cap_ptr);
break;
default:
return 0;
}
do {
cap_ptr &= 0xFC;
pci_read_config_byte(dev, cap_ptr + PCI_CAP_LIST_ID, &cap_id);
pci_read_config_byte(dev, cap_ptr + PCI_CAP_LIST_NEXT,
&cap_ptr);
} while (cap_ptr && cap_id != 0xFF);
return 0;
}
static struct pci_dev *xgi_get_pci_device(struct xgi_info * info)
{
struct pci_dev *dev;
dev = XGI_PCI_GET_DEVICE(info->vendor_id, info->device_id, NULL);
while (dev) {
if (XGI_PCI_SLOT_NUMBER(dev) == info->slot
&& XGI_PCI_BUS_NUMBER(dev) == info->bus)
return dev;
dev = XGI_PCI_GET_DEVICE(info->vendor_id, info->device_id, dev);
}
return NULL;
}
int xgi_kern_read_card_info(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
struct pci_dev *dev;
char *type;
int len = 0;
struct xgi_info *info;
info = (struct xgi_info *) data;
dev = xgi_get_pci_device(info);
if (!dev)
return 0;
type = xgi_find_pcie_capability(dev) ? "PCIE" : "PCI";
len += sprintf(page + len, "Card Type: \t %s\n", type);
XGI_PCI_DEV_PUT(dev);
return len;
}
int xgi_kern_read_version(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
int len = 0;
len += sprintf(page + len, "XGI version: %s\n", "1.0");
len += sprintf(page + len, "GCC version: %s\n", "3.0");
return len;
}
int xgi_kern_read_pcie_info(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
return 0;
}
int xgi_kern_read_status(char *page, char **start, off_t off,
int count, int *eof, void *data)
{
return 0;
}
static void xgi_proc_create(void)
{
#ifdef CONFIG_PROC_FS
struct pci_dev *dev;
int i = 0;
char name[6];
struct proc_dir_entry *entry;
struct proc_dir_entry *proc_xgi_pcie, *proc_xgi_cards;
struct xgi_info *info;
struct xgi_info *xgi_max_devices;
/* world readable directory */
int flags = S_IFDIR | S_IRUGO | S_IXUGO;
proc_xgi = create_proc_entry("xgi", flags, proc_root_driver);
if (!proc_xgi)
goto failed;
proc_xgi_cards = create_proc_entry("cards", flags, proc_xgi);
if (!proc_xgi_cards)
goto failed;
proc_xgi_pcie = create_proc_entry("pcie", flags, proc_xgi);
if (!proc_xgi_pcie)
goto failed;
/*
* Set the module owner to ensure that the reference
* count reflects accesses to the proc files.
*/
proc_xgi->owner = THIS_MODULE;
proc_xgi_cards->owner = THIS_MODULE;
proc_xgi_pcie->owner = THIS_MODULE;
xgi_max_devices = xgi_devices + XGI_MAX_DEVICES;
for (info = xgi_devices; info < xgi_max_devices; info++) {
if (info->device_id == 0)
break;
/* world readable file */
flags = S_IFREG | S_IRUGO;
dev = xgi_get_pci_device(info);
if (!dev)
break;
sprintf(name, "%d", i++);
entry = create_proc_entry(name, flags, proc_xgi_cards);
if (!entry) {
XGI_PCI_DEV_PUT(dev);
goto failed;
}
entry->data = info;
entry->read_proc = xgi_kern_read_card_info;
entry->owner = THIS_MODULE;
if (xgi_find_pcie_capability(dev)) {
entry =
create_proc_entry("status", flags, proc_xgi_pcie);
if (!entry) {
XGI_PCI_DEV_PUT(dev);
goto failed;
}
entry->data = info;
entry->read_proc = xgi_kern_read_status;
entry->owner = THIS_MODULE;
entry = create_proc_entry("card", flags, proc_xgi_pcie);
if (!entry) {
XGI_PCI_DEV_PUT(dev);
goto failed;
}
entry->data = info;
entry->read_proc = xgi_kern_read_pcie_info;
entry->owner = THIS_MODULE;
}
XGI_PCI_DEV_PUT(dev);
}
entry = create_proc_entry("version", flags, proc_xgi);
if (!entry)
goto failed;
entry->read_proc = xgi_kern_read_version;
entry->owner = THIS_MODULE;
entry = create_proc_entry("host-bridge", flags, proc_xgi_pcie);
if (!entry)
goto failed;
entry->data = NULL;
entry->read_proc = xgi_kern_read_pcie_info;
entry->owner = THIS_MODULE;
return;
failed:
XGI_ERROR("failed to create /proc entries!\n");
xgi_proc_remove_all(proc_xgi);
#endif
}
#ifdef CONFIG_PROC_FS
static void xgi_proc_remove_all(struct proc_dir_entry *entry)
{
while (entry) {
struct proc_dir_entry *next = entry->next;
if (entry->subdir)
xgi_proc_remove_all(entry->subdir);
remove_proc_entry(entry->name, entry->parent);
if (entry == proc_xgi)
break;
entry = next;
}
}
#endif
static void xgi_proc_remove(void)
{
#ifdef CONFIG_PROC_FS
xgi_proc_remove_all(proc_xgi);
#endif
}
/*
* driver receives an interrupt if someone waiting, then hand it off.
*/
irqreturn_t xgi_kern_isr(int irq, void *dev_id, struct pt_regs *regs)
{
struct xgi_info *info = (struct xgi_info *) dev_id;
u32 need_to_run_bottom_half = 0;
//XGI_INFO("xgi_kern_isr \n");
//XGI_CHECK_PCI_CONFIG(info);
//xgi_dvi_irq_handler(info);
if (need_to_run_bottom_half) {
tasklet_schedule(&info->tasklet);
}
return IRQ_HANDLED;
}
void xgi_kern_isr_bh(unsigned long data)
{
struct xgi_info *info = (struct xgi_info *) data;
XGI_INFO("xgi_kern_isr_bh \n");
//xgi_dvi_irq_handler(info);
XGI_CHECK_PCI_CONFIG(info);
}
static void xgi_lock_init(struct xgi_info * info)
{
if (info == NULL)
return;
spin_lock_init(&info->info_lock);
sema_init(&info->info_sem, 1);
sema_init(&info->fb_sem, 1);
sema_init(&info->pcie_sem, 1);
XGI_ATOMIC_SET(info->use_count, 0);
}
static void xgi_dev_init(struct xgi_info * info)
{
struct pci_dev *pdev = NULL;
struct xgi_dev *dev;
int found = 0;
u16 pci_cmd;
XGI_INFO("Enter xgi_dev_init \n");
//XGI_PCI_FOR_EACH_DEV(pdev)
{
for (dev = xgidev_list; dev->vendor; dev++) {
if ((dev->vendor == pdev->vendor)
&& (dev->device == pdev->device)) {
XGI_INFO("dev->vendor = pdev->vendor= %x \n",
dev->vendor);
XGI_INFO("dev->device = pdev->device= %x \n",
dev->device);
xgi_devices[found].device_id = pdev->device;
pci_read_config_byte(pdev, PCI_REVISION_ID,
&xgi_devices[found].
revision_id);
XGI_INFO("PCI_REVISION_ID= %x \n",
xgi_devices[found].revision_id);
pci_read_config_word(pdev, PCI_COMMAND,
&pci_cmd);
XGI_INFO("PCI_COMMAND = %x \n", pci_cmd);
break;
}
}
}
}
/*
* Export to Linux Kernel
*/
static int __init xgi_init_module(void)
{
struct xgi_info *info = &xgi_devices[xgi_num_devices];
int i, result;
XGI_INFO("Jong-xgi kernel driver %s initializing\n", XGI_DRV_VERSION);
//SET_MODULE_OWNER(&xgi_fops);
memset(xgi_devices, 0, sizeof(xgi_devices));
if (pci_register_driver(&xgi_pci_driver) < 0) {
pci_unregister_driver(&xgi_pci_driver);
XGI_ERROR("no XGI graphics adapter found\n");
return -ENODEV;
}
XGI_INFO("Jong-xgi_devices[%d].fb.base.: 0x%lx \n", xgi_num_devices,
xgi_devices[xgi_num_devices].fb.base);
XGI_INFO("Jong-xgi_devices[%d].fb.size.: 0x%lx \n", xgi_num_devices,
xgi_devices[xgi_num_devices].fb.size);
/* Jong 07/27/2006; test for ubuntu */
/*
#ifdef CONFIG_DEVFS_FS
XGI_INFO("Jong-Use devfs \n");
do
{
xgi_devfs_handles[0] = XGI_DEVFS_REGISTER("xgi", 0);
if (xgi_devfs_handles[0] == NULL)
{
result = -ENOMEM;
XGI_ERROR("devfs register failed\n");
goto failed;
}
} while(0);
#else *//* no devfs, do it the "classic" way */
XGI_INFO("Jong-Use non-devfs \n");
/*
* Register your major, and accept a dynamic number. This is the
* first thing to do, in order to avoid releasing other module's
* fops in scull_cleanup_module()
*/
result = XGI_REGISTER_CHRDEV(xgi_major, "xgi", &xgi_fops);
if (result < 0) {
XGI_ERROR("register chrdev failed\n");
pci_unregister_driver(&xgi_pci_driver);
return result;
}
if (xgi_major == 0)
xgi_major = result; /* dynamic */
/* #endif *//* CONFIG_DEVFS_FS */
XGI_INFO("Jong-major number %d\n", xgi_major);
/* instantiate tasklets */
for (i = 0; i < XGI_MAX_DEVICES; i++) {
/*
* We keep one tasklet per card to avoid latency issues with more
* than one device; no two instances of a single tasklet are ever
* executed concurrently.
*/
XGI_ATOMIC_SET(xgi_devices[i].tasklet.count, 1);
}
/* init the xgi control device */
{
struct xgi_info *info_ctl = &xgi_ctl_device;
xgi_lock_init(info_ctl);
}
/* Init the resource manager */
INIT_LIST_HEAD(&xgi_mempid_list);
if (!xgi_fb_heap_init(info)) {
XGI_ERROR("xgi_fb_heap_init() failed\n");
result = -EIO;
goto failed;
}
/* Init the resource manager */
if (!xgi_pcie_heap_init(info)) {
XGI_ERROR("xgi_pcie_heap_init() failed\n");
result = -EIO;
goto failed;
}
/* create /proc/driver/xgi */
xgi_proc_create();
#if defined(DEBUG)
inter_module_register("xgi_devices", THIS_MODULE, xgi_devices);
#endif
return 0;
failed:
#ifdef CONFIG_DEVFS_FS
XGI_DEVFS_REMOVE_CONTROL();
XGI_DEVFS_REMOVE_DEVICE(xgi_num_devices);
#endif
if (XGI_UNREGISTER_CHRDEV(xgi_major, "xgi") < 0)
XGI_ERROR("unregister xgi chrdev failed\n");
for (i = 0; i < xgi_num_devices; i++) {
if (xgi_devices[i].dev) {
release_mem_region(xgi_devices[i].fb.base,
xgi_devices[i].fb.size);
release_mem_region(xgi_devices[i].mmio.base,
xgi_devices[i].mmio.size);
}
}
pci_unregister_driver(&xgi_pci_driver);
return result;
return 1;
}
void __exit xgi_exit_module(void)
{
int i;
#ifdef CONFIG_DEVFS_FS
XGI_DEVFS_REMOVE_DEVICE(xgi_num_devices);
#endif
if (XGI_UNREGISTER_CHRDEV(xgi_major, "xgi") < 0)
XGI_ERROR("unregister xgi chrdev failed\n");
XGI_INFO("Jong-unregister xgi chrdev scceeded\n");
for (i = 0; i < XGI_MAX_DEVICES; i++) {
if (xgi_devices[i].dev) {
/* clean up the flush2D batch array */
xgi_cmdlist_cleanup(&xgi_devices[i]);
if (xgi_devices[i].fb.vbase != NULL) {
iounmap((void *)xgi_devices[i].fb.vbase);
xgi_devices[i].fb.vbase = NULL;
}
if (xgi_devices[i].mmio.vbase != NULL) {
iounmap((void *)xgi_devices[i].mmio.vbase);
xgi_devices[i].mmio.vbase = NULL;
}
//release_mem_region(xgi_devices[i].fb.base, xgi_devices[i].fb.size);
//XGI_INFO("release frame buffer mem region scceeded\n");
release_mem_region(xgi_devices[i].mmio.base,
xgi_devices[i].mmio.size);
XGI_INFO("release MMIO mem region scceeded\n");
xgi_fb_heap_cleanup(&xgi_devices[i]);
XGI_INFO("xgi_fb_heap_cleanup scceeded\n");
xgi_pcie_heap_cleanup(&xgi_devices[i]);
XGI_INFO("xgi_pcie_heap_cleanup scceeded\n");
XGI_PCI_DISABLE_DEVICE(xgi_devices[i].dev);
}
}
pci_unregister_driver(&xgi_pci_driver);
/* remove /proc/driver/xgi */
xgi_proc_remove();
#if defined(DEBUG)
inter_module_unregister("xgi_devices");
#endif
}
module_init(xgi_init_module);
module_exit(xgi_exit_module);
#if defined(XGI_PM_SUPPORT_ACPI)
int xgi_acpi_event(struct pci_dev *dev, u32 state)
{
return 1;
}
int xgi_kern_acpi_standby(struct pci_dev *dev, u32 state)
{
return 1;
}
int xgi_kern_acpi_resume(struct pci_dev *dev)
{
return 1;
}
#endif
MODULE_AUTHOR("Andrea Zhang <andrea_zhang@macrosynergy.com>");
MODULE_DESCRIPTION("xgi kernel driver for xgi cards");
MODULE_LICENSE("GPL");
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