X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fi915%2Fi915_drv.c;h=2fa217862058d849fe3b5723cf578297777cbe53;hb=c9a9c5e02aedc1a2815877b0268f886d2640b771;hp=e0d996ed90264290f00178956057fb282baa9cbc;hpb=de151cf67ce52ed2d88083daa5e60c7858947329;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index e0d996e..2fa2178 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -27,24 +27,42 @@ * */ +#include #include "drmP.h" #include "drm.h" #include "i915_drm.h" #include "i915_drv.h" #include "drm_pciids.h" +#include +#include "drm_crtc_helper.h" + +static int i915_modeset = -1; +module_param_named(modeset, i915_modeset, int, 0400); + +unsigned int i915_fbpercrtc = 0; +module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400); + +unsigned int i915_powersave = 1; +module_param_named(powersave, i915_powersave, int, 0400); + +static struct drm_driver driver; static struct pci_device_id pciidlist[] = { i915_PCI_IDS }; +#if defined(CONFIG_DRM_I915_KMS) +MODULE_DEVICE_TABLE(pci, pciidlist); +#endif + static int i915_suspend(struct drm_device *dev, pm_message_t state) { struct drm_i915_private *dev_priv = dev->dev_private; if (!dev || !dev_priv) { - printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv); - printk(KERN_ERR "DRM not initialized, aborting suspend.\n"); + DRM_ERROR("dev: %p, dev_priv: %p\n", dev, dev_priv); + DRM_ERROR("DRM not initialized, aborting suspend.\n"); return -ENODEV; } @@ -53,9 +71,17 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) pci_save_state(dev->pdev); + /* If KMS is active, we do the leavevt stuff here */ + if (drm_core_check_feature(dev, DRIVER_MODESET)) { + if (i915_gem_idle(dev)) + dev_err(&dev->pdev->dev, + "GEM idle failed, resume may fail\n"); + drm_irq_uninstall(dev); + } + i915_save_state(dev); - intel_opregion_free(dev); + intel_opregion_free(dev, 1); if (state.event == PM_EVENT_SUSPEND) { /* Shut down the device */ @@ -63,26 +89,205 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state) pci_set_power_state(dev->pdev, PCI_D3hot); } + /* Modeset on resume, not lid events */ + dev_priv->modeset_on_lid = 0; + return 0; } static int i915_resume(struct drm_device *dev) { - pci_set_power_state(dev->pdev, PCI_D0); - pci_restore_state(dev->pdev); + struct drm_i915_private *dev_priv = dev->dev_private; + int ret = 0; + if (pci_enable_device(dev->pdev)) return -1; pci_set_master(dev->pdev); i915_restore_state(dev); - intel_opregion_init(dev); + intel_opregion_init(dev, 1); + + /* KMS EnterVT equivalent */ + if (drm_core_check_feature(dev, DRIVER_MODESET)) { + mutex_lock(&dev->struct_mutex); + dev_priv->mm.suspended = 0; + + ret = i915_gem_init_ringbuffer(dev); + if (ret != 0) + ret = -1; + mutex_unlock(&dev->struct_mutex); + + drm_irq_install(dev); + } + if (drm_core_check_feature(dev, DRIVER_MODESET)) { + /* Resume the modeset for every activated CRTC */ + drm_helper_resume_force_mode(dev); + } + + dev_priv->modeset_on_lid = 0; + + return ret; +} + +/** + * i965_reset - reset chip after a hang + * @dev: drm device to reset + * @flags: reset domains + * + * Reset the chip. Useful if a hang is detected. Returns zero on successful + * reset or otherwise an error code. + * + * Procedure is fairly simple: + * - reset the chip using the reset reg + * - re-init context state + * - re-init hardware status page + * - re-init ring buffer + * - re-init interrupt state + * - re-init display + */ +int i965_reset(struct drm_device *dev, u8 flags) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + unsigned long timeout; + u8 gdrst; + /* + * We really should only reset the display subsystem if we actually + * need to + */ + bool need_display = true; + + mutex_lock(&dev->struct_mutex); + + /* + * Clear request list + */ + i915_gem_retire_requests(dev); + + if (need_display) + i915_save_display(dev); + + if (IS_I965G(dev) || IS_G4X(dev)) { + /* + * Set the domains we want to reset, then the reset bit (bit 0). + * Clear the reset bit after a while and wait for hardware status + * bit (bit 1) to be set + */ + pci_read_config_byte(dev->pdev, GDRST, &gdrst); + pci_write_config_byte(dev->pdev, GDRST, gdrst | flags | ((flags == GDRST_FULL) ? 0x1 : 0x0)); + udelay(50); + pci_write_config_byte(dev->pdev, GDRST, gdrst & 0xfe); + + /* ...we don't want to loop forever though, 500ms should be plenty */ + timeout = jiffies + msecs_to_jiffies(500); + do { + udelay(100); + pci_read_config_byte(dev->pdev, GDRST, &gdrst); + } while ((gdrst & 0x1) && time_after(timeout, jiffies)); + + if (gdrst & 0x1) { + WARN(true, "i915: Failed to reset chip\n"); + mutex_unlock(&dev->struct_mutex); + return -EIO; + } + } else { + DRM_ERROR("Error occurred. Don't know how to reset this chip.\n"); + return -ENODEV; + } + + /* Ok, now get things going again... */ + + /* + * Everything depends on having the GTT running, so we need to start + * there. Fortunately we don't need to do this unless we reset the + * chip at a PCI level. + * + * Next we need to restore the context, but we don't use those + * yet either... + * + * Ring buffer needs to be re-initialized in the KMS case, or if X + * was running at the time of the reset (i.e. we weren't VT + * switched away). + */ + if (drm_core_check_feature(dev, DRIVER_MODESET) || + !dev_priv->mm.suspended) { + drm_i915_ring_buffer_t *ring = &dev_priv->ring; + struct drm_gem_object *obj = ring->ring_obj; + struct drm_i915_gem_object *obj_priv = obj->driver_private; + dev_priv->mm.suspended = 0; + + /* Stop the ring if it's running. */ + I915_WRITE(PRB0_CTL, 0); + I915_WRITE(PRB0_TAIL, 0); + I915_WRITE(PRB0_HEAD, 0); + + /* Initialize the ring. */ + I915_WRITE(PRB0_START, obj_priv->gtt_offset); + I915_WRITE(PRB0_CTL, + ((obj->size - 4096) & RING_NR_PAGES) | + RING_NO_REPORT | + RING_VALID); + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + i915_kernel_lost_context(dev); + else { + ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR; + ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR; + ring->space = ring->head - (ring->tail + 8); + if (ring->space < 0) + ring->space += ring->Size; + } + + mutex_unlock(&dev->struct_mutex); + drm_irq_uninstall(dev); + drm_irq_install(dev); + mutex_lock(&dev->struct_mutex); + } + + /* + * Display needs restore too... + */ + if (need_display) + i915_restore_display(dev); + mutex_unlock(&dev->struct_mutex); return 0; } + +static int __devinit +i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + return drm_get_dev(pdev, ent, &driver); +} + +static void +i915_pci_remove(struct pci_dev *pdev) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + + drm_put_dev(dev); +} + +static int +i915_pci_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + + return i915_suspend(dev, state); +} + +static int +i915_pci_resume(struct pci_dev *pdev) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + + return i915_resume(dev); +} + static struct vm_operations_struct i915_gem_vm_ops = { .fault = i915_gem_fault, + .open = drm_gem_vm_open, + .close = drm_gem_vm_close, }; static struct drm_driver driver = { @@ -101,7 +306,6 @@ static struct drm_driver driver = { .suspend = i915_suspend, .resume = i915_resume, .device_is_agp = i915_driver_device_is_agp, - .get_vblank_counter = i915_get_vblank_counter, .enable_vblank = i915_enable_vblank, .disable_vblank = i915_disable_vblank, .irq_preinstall = i915_driver_irq_preinstall, @@ -113,8 +317,10 @@ static struct drm_driver driver = { .get_reg_ofs = drm_core_get_reg_ofs, .master_create = i915_master_create, .master_destroy = i915_master_destroy, - .proc_init = i915_gem_proc_init, - .proc_cleanup = i915_gem_proc_cleanup, +#if defined(CONFIG_DEBUG_FS) + .debugfs_init = i915_debugfs_init, + .debugfs_cleanup = i915_debugfs_cleanup, +#endif .gem_init_object = i915_gem_init_object, .gem_free_object = i915_gem_free_object, .gem_vm_ops = &i915_gem_vm_ops, @@ -127,6 +333,7 @@ static struct drm_driver driver = { .mmap = drm_gem_mmap, .poll = drm_poll, .fasync = drm_fasync, + .read = drm_read, #ifdef CONFIG_COMPAT .compat_ioctl = i915_compat_ioctl, #endif @@ -135,6 +342,12 @@ static struct drm_driver driver = { .pci_driver = { .name = DRIVER_NAME, .id_table = pciidlist, + .probe = i915_pci_probe, + .remove = i915_pci_remove, +#ifdef CONFIG_PM + .resume = i915_pci_resume, + .suspend = i915_pci_suspend, +#endif }, .name = DRIVER_NAME, @@ -148,11 +361,36 @@ static struct drm_driver driver = { static int __init i915_init(void) { driver.num_ioctls = i915_max_ioctl; + + i915_gem_shrinker_init(); + + /* + * If CONFIG_DRM_I915_KMS is set, default to KMS unless + * explicitly disabled with the module pararmeter. + * + * Otherwise, just follow the parameter (defaulting to off). + * + * Allow optional vga_text_mode_force boot option to override + * the default behavior. + */ +#if defined(CONFIG_DRM_I915_KMS) + if (i915_modeset != 0) + driver.driver_features |= DRIVER_MODESET; +#endif + if (i915_modeset == 1) + driver.driver_features |= DRIVER_MODESET; + +#ifdef CONFIG_VGA_CONSOLE + if (vgacon_text_force() && i915_modeset == -1) + driver.driver_features &= ~DRIVER_MODESET; +#endif + return drm_init(&driver); } static void __exit i915_exit(void) { + i915_gem_shrinker_exit(); drm_exit(&driver); }