diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/gpu/drm/drm_pci.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/gpu/drm/drm_pci.c | 467 |
1 files changed, 0 insertions, 467 deletions
diff --git a/ANDROID_3.4.5/drivers/gpu/drm/drm_pci.c b/ANDROID_3.4.5/drivers/gpu/drm/drm_pci.c deleted file mode 100644 index 13f3d936..00000000 --- a/ANDROID_3.4.5/drivers/gpu/drm/drm_pci.c +++ /dev/null @@ -1,467 +0,0 @@ -/* drm_pci.h -- PCI DMA memory management wrappers for DRM -*- linux-c -*- */ -/** - * \file drm_pci.c - * \brief Functions and ioctls to manage PCI memory - * - * \warning These interfaces aren't stable yet. - * - * \todo Implement the remaining ioctl's for the PCI pools. - * \todo The wrappers here are so thin that they would be better off inlined.. - * - * \author José Fonseca <jrfonseca@tungstengraphics.com> - * \author Leif Delgass <ldelgass@retinalburn.net> - */ - -/* - * Copyright 2003 José Fonseca. - * Copyright 2003 Leif Delgass. - * 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 - * 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 NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS 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 <linux/pci.h> -#include <linux/slab.h> -#include <linux/dma-mapping.h> -#include <linux/export.h> -#include "drmP.h" - -/**********************************************************************/ -/** \name PCI memory */ -/*@{*/ - -/** - * \brief Allocate a PCI consistent memory block, for DMA. - */ -drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t align) -{ - drm_dma_handle_t *dmah; -#if 1 - unsigned long addr; - size_t sz; -#endif - - /* pci_alloc_consistent only guarantees alignment to the smallest - * PAGE_SIZE order which is greater than or equal to the requested size. - * Return NULL here for now to make sure nobody tries for larger alignment - */ - if (align > size) - return NULL; - - dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL); - if (!dmah) - return NULL; - - dmah->size = size; - dmah->vaddr = dma_alloc_coherent(&dev->pdev->dev, size, &dmah->busaddr, GFP_KERNEL | __GFP_COMP); - - if (dmah->vaddr == NULL) { - kfree(dmah); - return NULL; - } - - memset(dmah->vaddr, 0, size); - - /* XXX - Is virt_to_page() legal for consistent mem? */ - /* Reserve */ - for (addr = (unsigned long)dmah->vaddr, sz = size; - sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) { - SetPageReserved(virt_to_page(addr)); - } - - return dmah; -} - -EXPORT_SYMBOL(drm_pci_alloc); - -/** - * \brief Free a PCI consistent memory block without freeing its descriptor. - * - * This function is for internal use in the Linux-specific DRM core code. - */ -void __drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah) -{ -#if 1 - unsigned long addr; - size_t sz; -#endif - - if (dmah->vaddr) { - /* XXX - Is virt_to_page() legal for consistent mem? */ - /* Unreserve */ - for (addr = (unsigned long)dmah->vaddr, sz = dmah->size; - sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - } - dma_free_coherent(&dev->pdev->dev, dmah->size, dmah->vaddr, - dmah->busaddr); - } -} - -/** - * \brief Free a PCI consistent memory block - */ -void drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah) -{ - __drm_pci_free(dev, dmah); - kfree(dmah); -} - -EXPORT_SYMBOL(drm_pci_free); - -#ifdef CONFIG_PCI - -static int drm_get_pci_domain(struct drm_device *dev) -{ -#ifndef __alpha__ - /* For historical reasons, drm_get_pci_domain() is busticated - * on most archs and has to remain so for userspace interface - * < 1.4, except on alpha which was right from the beginning - */ - if (dev->if_version < 0x10004) - return 0; -#endif /* __alpha__ */ - - return pci_domain_nr(dev->pdev->bus); -} - -static int drm_pci_get_irq(struct drm_device *dev) -{ - return dev->pdev->irq; -} - -static const char *drm_pci_get_name(struct drm_device *dev) -{ - struct pci_driver *pdriver = dev->driver->kdriver.pci; - return pdriver->name; -} - -int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master) -{ - int len, ret; - struct pci_driver *pdriver = dev->driver->kdriver.pci; - master->unique_len = 40; - master->unique_size = master->unique_len; - master->unique = kmalloc(master->unique_size, GFP_KERNEL); - if (master->unique == NULL) - return -ENOMEM; - - - len = snprintf(master->unique, master->unique_len, - "pci:%04x:%02x:%02x.%d", - drm_get_pci_domain(dev), - dev->pdev->bus->number, - PCI_SLOT(dev->pdev->devfn), - PCI_FUNC(dev->pdev->devfn)); - - if (len >= master->unique_len) { - DRM_ERROR("buffer overflow"); - ret = -EINVAL; - goto err; - } else - master->unique_len = len; - - dev->devname = - kmalloc(strlen(pdriver->name) + - master->unique_len + 2, GFP_KERNEL); - - if (dev->devname == NULL) { - ret = -ENOMEM; - goto err; - } - - sprintf(dev->devname, "%s@%s", pdriver->name, - master->unique); - - return 0; -err: - return ret; -} - -int drm_pci_set_unique(struct drm_device *dev, - struct drm_master *master, - struct drm_unique *u) -{ - int domain, bus, slot, func, ret; - const char *bus_name; - - master->unique_len = u->unique_len; - master->unique_size = u->unique_len + 1; - master->unique = kmalloc(master->unique_size, GFP_KERNEL); - if (!master->unique) { - ret = -ENOMEM; - goto err; - } - - if (copy_from_user(master->unique, u->unique, master->unique_len)) { - ret = -EFAULT; - goto err; - } - - master->unique[master->unique_len] = '\0'; - - bus_name = dev->driver->bus->get_name(dev); - dev->devname = kmalloc(strlen(bus_name) + - strlen(master->unique) + 2, GFP_KERNEL); - if (!dev->devname) { - ret = -ENOMEM; - goto err; - } - - sprintf(dev->devname, "%s@%s", bus_name, - master->unique); - - /* Return error if the busid submitted doesn't match the device's actual - * busid. - */ - ret = sscanf(master->unique, "PCI:%d:%d:%d", &bus, &slot, &func); - if (ret != 3) { - ret = -EINVAL; - goto err; - } - - domain = bus >> 8; - bus &= 0xff; - - if ((domain != drm_get_pci_domain(dev)) || - (bus != dev->pdev->bus->number) || - (slot != PCI_SLOT(dev->pdev->devfn)) || - (func != PCI_FUNC(dev->pdev->devfn))) { - ret = -EINVAL; - goto err; - } - return 0; -err: - return ret; -} - - -static int drm_pci_irq_by_busid(struct drm_device *dev, struct drm_irq_busid *p) -{ - if ((p->busnum >> 8) != drm_get_pci_domain(dev) || - (p->busnum & 0xff) != dev->pdev->bus->number || - p->devnum != PCI_SLOT(dev->pdev->devfn) || p->funcnum != PCI_FUNC(dev->pdev->devfn)) - return -EINVAL; - - p->irq = dev->pdev->irq; - - DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum, - p->irq); - return 0; -} - -int drm_pci_agp_init(struct drm_device *dev) -{ - if (drm_core_has_AGP(dev)) { - if (drm_pci_device_is_agp(dev)) - dev->agp = drm_agp_init(dev); - if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) - && (dev->agp == NULL)) { - DRM_ERROR("Cannot initialize the agpgart module.\n"); - return -EINVAL; - } - if (drm_core_has_MTRR(dev)) { - if (dev->agp) - dev->agp->agp_mtrr = - mtrr_add(dev->agp->agp_info.aper_base, - dev->agp->agp_info.aper_size * - 1024 * 1024, MTRR_TYPE_WRCOMB, 1); - } - } - return 0; -} - -static struct drm_bus drm_pci_bus = { - .bus_type = DRIVER_BUS_PCI, - .get_irq = drm_pci_get_irq, - .get_name = drm_pci_get_name, - .set_busid = drm_pci_set_busid, - .set_unique = drm_pci_set_unique, - .irq_by_busid = drm_pci_irq_by_busid, - .agp_init = drm_pci_agp_init, -}; - -/** - * Register. - * - * \param pdev - PCI device structure - * \param ent entry from the PCI ID table with device type flags - * \return zero on success or a negative number on failure. - * - * Attempt to gets inter module "drm" information. If we are first - * then register the character device and inter module information. - * Try and register, if we fail to register, backout previous work. - */ -int drm_get_pci_dev(struct pci_dev *pdev, const struct pci_device_id *ent, - struct drm_driver *driver) -{ - struct drm_device *dev; - int ret; - - DRM_DEBUG("\n"); - - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) - return -ENOMEM; - - ret = pci_enable_device(pdev); - if (ret) - goto err_g1; - - dev->pdev = pdev; - dev->dev = &pdev->dev; - - dev->pci_device = pdev->device; - dev->pci_vendor = pdev->vendor; - -#ifdef __alpha__ - dev->hose = pdev->sysdata; -#endif - - mutex_lock(&drm_global_mutex); - - if ((ret = drm_fill_in_dev(dev, ent, driver))) { - printk(KERN_ERR "DRM: Fill_in_dev failed.\n"); - goto err_g2; - } - - if (drm_core_check_feature(dev, DRIVER_MODESET)) { - pci_set_drvdata(pdev, dev); - ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL); - if (ret) - goto err_g2; - } - - if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY))) - goto err_g3; - - if (dev->driver->load) { - ret = dev->driver->load(dev, ent->driver_data); - if (ret) - goto err_g4; - } - - /* setup the grouping for the legacy output */ - if (drm_core_check_feature(dev, DRIVER_MODESET)) { - ret = drm_mode_group_init_legacy_group(dev, - &dev->primary->mode_group); - if (ret) - goto err_g4; - } - - list_add_tail(&dev->driver_item, &driver->device_list); - - DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n", - driver->name, driver->major, driver->minor, driver->patchlevel, - driver->date, pci_name(pdev), dev->primary->index); - - mutex_unlock(&drm_global_mutex); - return 0; - -err_g4: - drm_put_minor(&dev->primary); -err_g3: - if (drm_core_check_feature(dev, DRIVER_MODESET)) - drm_put_minor(&dev->control); -err_g2: - pci_disable_device(pdev); -err_g1: - kfree(dev); - mutex_unlock(&drm_global_mutex); - return ret; -} -EXPORT_SYMBOL(drm_get_pci_dev); - -/** - * PCI device initialization. Called direct from modules at load time. - * - * \return zero on success or a negative number on failure. - * - * Initializes a drm_device structures,registering the - * stubs and initializing the AGP device. - * - * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and - * after the initialization for driver customization. - */ -int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver) -{ - struct pci_dev *pdev = NULL; - const struct pci_device_id *pid; - int i; - - DRM_DEBUG("\n"); - - INIT_LIST_HEAD(&driver->device_list); - driver->kdriver.pci = pdriver; - driver->bus = &drm_pci_bus; - - if (driver->driver_features & DRIVER_MODESET) - return pci_register_driver(pdriver); - - /* If not using KMS, fall back to stealth mode manual scanning. */ - for (i = 0; pdriver->id_table[i].vendor != 0; i++) { - pid = &pdriver->id_table[i]; - - /* Loop around setting up a DRM device for each PCI device - * matching our ID and device class. If we had the internal - * function that pci_get_subsys and pci_get_class used, we'd - * be able to just pass pid in instead of doing a two-stage - * thing. - */ - pdev = NULL; - while ((pdev = - pci_get_subsys(pid->vendor, pid->device, pid->subvendor, - pid->subdevice, pdev)) != NULL) { - if ((pdev->class & pid->class_mask) != pid->class) - continue; - - /* stealth mode requires a manual probe */ - pci_dev_get(pdev); - drm_get_pci_dev(pdev, pid, driver); - } - } - return 0; -} - -#else - -int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver) -{ - return -1; -} - -#endif - -EXPORT_SYMBOL(drm_pci_init); - -/*@}*/ -void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver) -{ - struct drm_device *dev, *tmp; - DRM_DEBUG("\n"); - - if (driver->driver_features & DRIVER_MODESET) { - pci_unregister_driver(pdriver); - } else { - list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item) - drm_put_dev(dev); - } - DRM_INFO("Module unloaded\n"); -} -EXPORT_SYMBOL(drm_pci_exit); |