diff options
Diffstat (limited to 'linux-core/xgi_linux.h')
| -rw-r--r-- | linux-core/xgi_linux.h | 490 |
1 files changed, 490 insertions, 0 deletions
diff --git a/linux-core/xgi_linux.h b/linux-core/xgi_linux.h new file mode 100644 index 00000000..99bf2d04 --- /dev/null +++ b/linux-core/xgi_linux.h @@ -0,0 +1,490 @@ + +/**************************************************************************** + * 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. + ***************************************************************************/ + +#ifndef _XGI_LINUX_H_ +#define _XGI_LINUX_H_ + +#ifndef LINUX_VERSION_CODE +#include <linux/version.h> +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0) +# error "This driver does not support pre-2.6 kernels!" +#endif + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10) +# define XGI_REMAP_PFN_RANGE_PRESENT +#else +# define XGI_REMAP_PAGE_RANGE_5 +#endif + +#if defined (CONFIG_SMP) && !defined (__SMP__) +#define __SMP__ +#endif + +#if defined (CONFIG_MODVERSIONS) && !defined (MODVERSIONS) +#define MODVERSIONS +#endif + +#include <linux/kernel.h> /* printk */ +#include <linux/module.h> + +#include <linux/init.h> /* module_init, module_exit */ +#include <linux/types.h> /* pic_t, size_t, __u32, etc */ +#include <linux/errno.h> /* error codes */ +#include <linux/list.h> /* circular linked list */ +#include <linux/stddef.h> /* NULL, offsetof */ +#include <linux/wait.h> /* wait queues */ + +#include <linux/slab.h> /* kmalloc, kfree, etc */ +#include <linux/vmalloc.h> /* vmalloc, vfree, etc */ + +#include <linux/poll.h> /* poll_wait */ +#include <linux/delay.h> /* mdelay, udelay */ +#include <asm/msr.h> /* rdtsc rdtscl */ + +#include <linux/sched.h> /* suser(), capable() replacement + for_each_task, for_each_process */ +#ifdef for_each_process +#define XGI_SCAN_PROCESS(p) for_each_process(p) +#else +#define XGI_SCAN_PROCESS(p) for_each_task(p) +#endif + +#include <linux/moduleparam.h> /* module_param() */ +#include <linux/smp_lock.h> /* kernel_locked */ +#include <asm/tlbflush.h> /* flush_tlb(), flush_tlb_all() */ +#include <asm/kmap_types.h> /* page table entry lookup */ + +#include <linux/pci.h> /* pci_find_class, etc */ +#include <linux/interrupt.h> /* tasklets, interrupt helpers */ +#include <linux/timer.h> + +#include <asm/system.h> /* cli, sli, save_flags */ +#include <asm/io.h> /* ioremap, virt_to_phys */ +#include <asm/uaccess.h> /* access_ok */ +#include <asm/page.h> /* PAGE_OFFSET */ +#include <asm/pgtable.h> /* pte bit definitions */ + +#include <linux/spinlock.h> +#include <asm/semaphore.h> +#include <linux/highmem.h> + +#ifdef CONFIG_PROC_FS +#include <linux/proc_fs.h> +#endif + +#ifdef CONFIG_DEVFS_FS +#include <linux/devfs_fs_kernel.h> +#endif + +#ifdef CONFIG_KMOD +#include <linux/kmod.h> +#endif + +#ifdef CONFIG_PM +#include <linux/pm.h> +#endif + +#ifdef CONFIG_MTRR +#include <asm/mtrr.h> +#endif + +#ifdef CONFIG_KDB +#include <linux/kdb.h> +#include <asm/kdb.h> +#endif + +#if defined (CONFIG_AGP) || defined (CONFIG_AGP_MODULE) +#define AGPGART +#include <linux/agp_backend.h> +#include <linux/agpgart.h> +#endif + +#ifndef MAX_ORDER +#define MAX_ORDER 11 +#endif + +#ifndef module_init +#define module_init(x) int init_module(void) { return x(); } +#define module_exit(x) void cleanup_module(void) { x(); } +#endif + +#ifndef minor +#define minor(x) MINOR(x) +#endif + +#ifndef IRQ_HANDLED +typedef void irqreturn_t; +#define IRQ_NONE +#define IRQ_HANDLED +#define IRQ_RETVAL(x) +#endif + +#if !defined (list_for_each) +#define list_for_each(pos, head) \ + for (pos = (head)->next, prefetch(pos->next); pos != (head); \ + pos = pos->next, prefetch(pos->next)) +#endif + +extern struct list_head pci_devices; /* list of all devices */ +#define XGI_PCI_FOR_EACH_DEV(dev) \ + for(dev = pci_dev_g(pci_devices.next); dev != pci_dev_g(&pci_devices); dev = pci_dev_g(dev->global_list.next)) + +/* + * the following macro causes problems when used in the same module + * as module_param(); undef it so we don't accidentally mix the two + */ +#undef MODULE_PARM + +#ifdef EXPORT_NO_SYMBOLS +EXPORT_NO_SYMBOLS; +#endif + +#define XGI_IS_SUSER() capable(CAP_SYS_ADMIN) +#define XGI_PCI_DEVICE_NAME(dev) ((dev)->pretty_name) +#define XGI_NUM_CPUS() num_online_cpus() +#define XGI_CLI() local_irq_disable() +#define XGI_SAVE_FLAGS(eflags) local_save_flags(eflags) +#define XGI_RESTORE_FLAGS(eflags) local_irq_restore(eflags) +#define XGI_MAY_SLEEP() (!in_interrupt() && !in_atomic()) +#define XGI_MODULE_PARAMETER(x) module_param(x, int, 0) + + +#define XGI_PCI_DISABLE_DEVICE(dev) pci_disable_device(dev) + +/* common defines */ +#define GET_MODULE_SYMBOL(mod,sym) (const void *) inter_module_get(sym) +#define PUT_MODULE_SYMBOL(sym) inter_module_put((char *) sym) + +#define XGI_GET_PAGE_STRUCT(phys_page) virt_to_page(__va(phys_page)) +#define XGI_VMA_OFFSET(vma) (((vma)->vm_pgoff) << PAGE_SHIFT) +#define XGI_VMA_PRIVATE(vma) ((vma)->vm_private_data) + +#define XGI_DEVICE_NUMBER(x) minor((x)->i_rdev) +#define XGI_IS_CONTROL_DEVICE(x) (minor((x)->i_rdev) == 255) + +#define XGI_PCI_RESOURCE_START(dev, bar) ((dev)->resource[bar].start) +#define XGI_PCI_RESOURCE_SIZE(dev, bar) ((dev)->resource[bar].end - (dev)->resource[bar].start + 1) + +#define XGI_PCI_BUS_NUMBER(dev) (dev)->bus->number +#define XGI_PCI_SLOT_NUMBER(dev) PCI_SLOT((dev)->devfn) + +#define XGI_PCI_GET_CLASS_PRESENT +#ifdef XGI_PCI_GET_CLASS_PRESENT +#define XGI_PCI_DEV_PUT(dev) pci_dev_put(dev) +#define XGI_PCI_GET_DEVICE(vendor,device,from) pci_get_device(vendor,device,from) +#else +#define XGI_PCI_DEV_PUT(dev) +#define XGI_PCI_GET_DEVICE(vendor,device,from) pci_find_device(vendor,device,from) +#endif + +/* + * acpi support has been back-ported to the 2.4 kernel, but the 2.4 driver + * model is not sufficient for full acpi support. it may work in some cases, + * but not enough for us to officially support this configuration. + */ +#if defined(CONFIG_ACPI) +#define XGI_PM_SUPPORT_ACPI +#endif + +#if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE) +#define XGI_PM_SUPPORT_APM +#endif + +#if defined(CONFIG_DEVFS_FS) +typedef void *devfs_handle_t; +#define XGI_DEVFS_REGISTER(_name, _minor) \ + ({ \ + devfs_handle_t __handle = NULL; \ + if (devfs_mk_cdev(MKDEV(XGI_DEV_MAJOR, _minor), \ + S_IFCHR | S_IRUGO | S_IWUGO, _name) == 0) \ + { \ + __handle = (void *) 1; /* XXX Fix me! (boolean) */ \ + } \ + __handle; \ + }) +/* +#define XGI_DEVFS_REMOVE_DEVICE(i) devfs_remove("xgi%d", i) +*/ +#define XGI_DEVFS_REMOVE_CONTROL() devfs_remove("xgi_ctl") +#define XGI_DEVFS_REMOVE_DEVICE(i) devfs_remove("xgi") +#endif /* defined(CONFIG_DEVFS_FS) */ + +#define XGI_REGISTER_CHRDEV(x...) register_chrdev(x) +#define XGI_UNREGISTER_CHRDEV(x...) unregister_chrdev(x) + +#if defined(XGI_REMAP_PFN_RANGE_PRESENT) +#define XGI_REMAP_PAGE_RANGE(from, offset, x...) \ + remap_pfn_range(vma, from, ((offset) >> PAGE_SHIFT), x) +#elif defined(XGI_REMAP_PAGE_RANGE_5) +#define XGI_REMAP_PAGE_RANGE(x...) remap_page_range(vma, x) +#elif defined(XGI_REMAP_PAGE_RANGE_4) +#define XGI_REMAP_PAGE_RANGE(x...) remap_page_range(x) +#else +#warning "xgi_configure.sh failed, assuming remap_page_range(5)!" +#define XGI_REMAP_PAGE_RANGE(x...) remap_page_range(vma, x) +#endif + +#if defined(pmd_offset_map) +#define XGI_PMD_OFFSET(addres, pg_dir, pg_mid_dir) \ + { \ + pg_mid_dir = pmd_offset_map(pg_dir, address); \ + } +#define XGI_PMD_UNMAP(pg_mid_dir) \ + { \ + pmd_unmap(pg_mid_dir); \ + } +#else +#define XGI_PMD_OFFSET(addres, pg_dir, pg_mid_dir) \ + { \ + pg_mid_dir = pmd_offset(pg_dir, address); \ + } +#define XGI_PMD_UNMAP(pg_mid_dir) +#endif + +#define XGI_PMD_PRESENT(pg_mid_dir) \ + ({ \ + if ((pg_mid_dir) && (pmd_none(*pg_mid_dir))) \ + { \ + XGI_PMD_UNMAP(pg_mid_dir); \ + pg_mid_dir = NULL; \ + } \ + pg_mid_dir != NULL; \ + }) + +#if defined(pte_offset_atomic) +#define XGI_PTE_OFFSET(addres, pg_mid_dir, pte) \ + { \ + pte = pte_offset_atomic(pg_mid_dir, address); \ + XGI_PMD_UNMAP(pg_mid_dir); \ + } +#define XGI_PTE_UNMAP(pte) \ + { \ + pte_kunmap(pte); \ + } +#elif defined(pte_offset) +#define XGI_PTE_OFFSET(addres, pg_mid_dir, pte) \ + { \ + pte = pte_offset(pg_mid_dir, address); \ + XGI_PMD_UNMAP(pg_mid_dir); \ + } +#define XGI_PTE_UNMAP(pte) +#else +#define XGI_PTE_OFFSET(addres, pg_mid_dir, pte) \ + { \ + pte = pte_offset_map(pg_mid_dir, address); \ + XGI_PMD_UNMAP(pg_mid_dir); \ + } +#define XGI_PTE_UNMAP(pte) \ + { \ + pte_unmap(pte); \ + } +#endif + +#define XGI_PTE_PRESENT(pte) \ + ({ \ + if (pte) \ + { \ + if (!pte_present(*pte)) \ + { \ + XGI_PTE_UNMAP(pte); pte = NULL; \ + } \ + } \ + pte != NULL; \ + }) + +#define XGI_PTE_VALUE(pte) \ + ({ \ + unsigned long __pte_value = pte_val(*pte); \ + XGI_PTE_UNMAP(pte); \ + __pte_value; \ + }) + +#define XGI_PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) / PAGE_SIZE) +#define XGI_MASK_OFFSET(addr) ((addr) & (PAGE_SIZE - 1)) + +#if !defined (pgprot_noncached) +static inline pgprot_t pgprot_noncached(pgprot_t old_prot) +{ + pgprot_t new_prot = old_prot; + if (boot_cpu_data.x86 > 3) + new_prot = __pgprot(pgprot_val(old_prot) | _PAGE_PCD); + return new_prot; +} +#endif + +#if defined(XGI_BUILD_XGI_PAT_SUPPORT) && !defined (pgprot_writecombined) +/* Added define for write combining page, only valid if pat enabled. */ +#define _PAGE_WRTCOMB _PAGE_PWT +#define __PAGE_KERNEL_WRTCOMB \ + (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_WRTCOMB | _PAGE_ACCESSED) +#define PAGE_KERNEL_WRTCOMB MAKE_GLOBAL(__PAGE_KERNEL_WRTCOMB) + +static inline pgprot_t pgprot_writecombined(pgprot_t old_prot) +{ + pgprot_t new_prot = old_prot; + if (boot_cpu_data.x86 > 3) { + pgprot_val(old_prot) &= ~(_PAGE_PCD | _PAGE_PWT); + new_prot = __pgprot(pgprot_val(old_prot) | _PAGE_WRTCOMB); + } + return new_prot; +} +#endif + +#if !defined(page_to_pfn) +#define page_to_pfn(page) ((page) - mem_map) +#endif + +#define XGI_VMALLOC(ptr, size) \ + { \ + (ptr) = vmalloc_32(size); \ + } + +#define XGI_VFREE(ptr, size) \ + { \ + vfree((void *) (ptr)); \ + } + +#define XGI_IOREMAP(ptr, physaddr, size) \ + { \ + (ptr) = ioremap(physaddr, size); \ + } + +#define XGI_IOREMAP_NOCACHE(ptr, physaddr, size) \ + { \ + (ptr) = ioremap_nocache(physaddr, size); \ + } + +#define XGI_IOUNMAP(ptr, size) \ + { \ + iounmap(ptr); \ + } + +/* + * only use this because GFP_KERNEL may sleep.. + * GFP_ATOMIC is ok, it won't sleep + */ +#define XGI_KMALLOC(ptr, size) \ + { \ + (ptr) = kmalloc(size, GFP_KERNEL); \ + } + +#define XGI_KMALLOC_ATOMIC(ptr, size) \ + { \ + (ptr) = kmalloc(size, GFP_ATOMIC); \ + } + +#define XGI_KFREE(ptr, size) \ + { \ + kfree((void *) (ptr)); \ + } + +#define XGI_GET_FREE_PAGES(ptr, order) \ + { \ + (ptr) = __get_free_pages(GFP_KERNEL, order); \ + } + +#define XGI_FREE_PAGES(ptr, order) \ + { \ + free_pages(ptr, order); \ + } + +struct xgi_pte { + unsigned long phys_addr; + unsigned long virt_addr; +}; + +/* + * AMD Athlon processors expose a subtle bug in the Linux + * kernel, that may lead to AGP memory corruption. Recent + * kernel versions had a workaround for this problem, but + * 2.4.20 is the first kernel to address it properly. The + * page_attr API provides the means to solve the problem. + */ +static inline void XGI_SET_PAGE_ATTRIB_UNCACHED(struct xgi_pte * page_ptr) +{ + struct page *page = virt_to_page(__va(page_ptr->phys_addr)); + change_page_attr(page, 1, PAGE_KERNEL_NOCACHE); +} +static inline void XGI_SET_PAGE_ATTRIB_CACHED(struct xgi_pte * page_ptr) +{ + struct page *page = virt_to_page(__va(page_ptr->phys_addr)); + change_page_attr(page, 1, PAGE_KERNEL); +} + +/* add for SUSE 9, Jill*/ +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 4) +#define XGI_INC_PAGE_COUNT(page) atomic_inc(&(page)->count) +#define XGI_DEC_PAGE_COUNT(page) atomic_dec(&(page)->count) +#define XGI_PAGE_COUNT(page) atomic_read(&(page)->count) +#define XGI_SET_PAGE_COUNT(page,v) atomic_set(&(page)->count, v) +#else +#define XGI_INC_PAGE_COUNT(page) atomic_inc(&(page)->_count) +#define XGI_DEC_PAGE_COUNT(page) atomic_dec(&(page)->_count) +#define XGI_PAGE_COUNT(page) atomic_read(&(page)->_count) +#define XGI_SET_PAGE_COUNT(page,v) atomic_set(&(page)->_count, v) +#endif +#define XGILockPage(page) SetPageLocked(page) +#define XGIUnlockPage(page) ClearPageLocked(page) + +struct xgi_file_private { + struct xgi_info *info; + unsigned int num_events; + spinlock_t fp_lock; + wait_queue_head_t wait_queue; +}; + +#define FILE_PRIVATE(filp) ((filp)->private_data) + +#define XGI_GET_FP(filp) ((struct xgi_file_private *) FILE_PRIVATE(filp)) + +/* for the card devices */ +#define XGI_INFO_FROM_FP(filp) (XGI_GET_FP(filp)->info) + +#define INODE_FROM_FP(filp) ((filp)->f_dentry->d_inode) + +#define XGI_ATOMIC_SET(data,val) atomic_set(&(data), (val)) +#define XGI_ATOMIC_INC(data) atomic_inc(&(data)) +#define XGI_ATOMIC_DEC(data) atomic_dec(&(data)) +#define XGI_ATOMIC_DEC_AND_TEST(data) atomic_dec_and_test(&(data)) +#define XGI_ATOMIC_READ(data) atomic_read(&(data)) + +/* + * lock-related functions that should only be called from this file + */ +#define xgi_init_lock(lock) spin_lock_init(&lock) +#define xgi_lock(lock) spin_lock(&lock) +#define xgi_unlock(lock) spin_unlock(&lock) +#define xgi_down(lock) down(&lock) +#define xgi_up(lock) up(&lock) + +#define xgi_lock_irqsave(lock,flags) spin_lock_irqsave(&lock,flags) +#define xgi_unlock_irqsave(lock,flags) spin_unlock_irqrestore(&lock,flags) + +#endif |