aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i915/i915_drv.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c108
1 files changed, 93 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f737960712e6..0ad533f06af9 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -46,15 +46,24 @@ module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
unsigned int i915_powersave = 1;
module_param_named(powersave, i915_powersave, int, 0600);
+unsigned int i915_enable_rc6 = 0;
+module_param_named(i915_enable_rc6, i915_enable_rc6, int, 0600);
+
unsigned int i915_lvds_downclock = 0;
module_param_named(lvds_downclock, i915_lvds_downclock, int, 0400);
+unsigned int i915_panel_use_ssc = 1;
+module_param_named(lvds_use_ssc, i915_panel_use_ssc, int, 0600);
+
+bool i915_try_reset = true;
+module_param_named(reset, i915_try_reset, bool, 0600);
+
static struct drm_driver driver;
extern int intel_agp_enabled;
#define INTEL_VGA_DEVICE(id, info) { \
.class = PCI_CLASS_DISPLAY_VGA << 8, \
- .class_mask = 0xffff00, \
+ .class_mask = 0xff0000, \
.vendor = 0x8086, \
.device = id, \
.subvendor = PCI_ANY_ID, \
@@ -111,7 +120,7 @@ static const struct intel_device_info intel_i965g_info = {
static const struct intel_device_info intel_i965gm_info = {
.gen = 4, .is_crestline = 1,
- .is_mobile = 1, .has_fbc = 1, .has_rc6 = 1, .has_hotplug = 1,
+ .is_mobile = 1, .has_fbc = 1, .has_hotplug = 1,
.has_overlay = 1,
.supports_tv = 1,
};
@@ -130,7 +139,7 @@ static const struct intel_device_info intel_g45_info = {
static const struct intel_device_info intel_gm45_info = {
.gen = 4, .is_g4x = 1,
- .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1,
+ .is_mobile = 1, .need_gfx_hws = 1, .has_fbc = 1,
.has_pipe_cxsr = 1, .has_hotplug = 1,
.supports_tv = 1,
.has_bsd_ring = 1,
@@ -150,7 +159,7 @@ static const struct intel_device_info intel_ironlake_d_info = {
static const struct intel_device_info intel_ironlake_m_info = {
.gen = 5, .is_mobile = 1,
- .need_gfx_hws = 1, .has_rc6 = 1, .has_hotplug = 1,
+ .need_gfx_hws = 1, .has_hotplug = 1,
.has_fbc = 0, /* disabled due to buggy hardware */
.has_bsd_ring = 1,
};
@@ -165,6 +174,7 @@ static const struct intel_device_info intel_sandybridge_d_info = {
static const struct intel_device_info intel_sandybridge_m_info = {
.gen = 6, .is_mobile = 1,
.need_gfx_hws = 1, .has_hotplug = 1,
+ .has_fbc = 1,
.has_bsd_ring = 1,
.has_blt_ring = 1,
};
@@ -244,10 +254,34 @@ void intel_detect_pch (struct drm_device *dev)
}
}
+void __gen6_force_wake_get(struct drm_i915_private *dev_priv)
+{
+ int count;
+
+ count = 0;
+ while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
+ udelay(10);
+
+ I915_WRITE_NOTRACE(FORCEWAKE, 1);
+ POSTING_READ(FORCEWAKE);
+
+ count = 0;
+ while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1) == 0)
+ udelay(10);
+}
+
+void __gen6_force_wake_put(struct drm_i915_private *dev_priv)
+{
+ I915_WRITE_NOTRACE(FORCEWAKE, 0);
+ POSTING_READ(FORCEWAKE);
+}
+
static int i915_drm_freeze(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ drm_kms_helper_poll_disable(dev);
+
pci_save_state(dev->pdev);
/* If KMS is active, we do the leavevt stuff here */
@@ -284,7 +318,9 @@ int i915_suspend(struct drm_device *dev, pm_message_t state)
if (state.event == PM_EVENT_PRETHAW)
return 0;
- drm_kms_helper_poll_disable(dev);
+
+ if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ return 0;
error = i915_drm_freeze(dev);
if (error)
@@ -304,6 +340,12 @@ static int i915_drm_thaw(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
int error = 0;
+ if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+ mutex_lock(&dev->struct_mutex);
+ i915_gem_restore_gtt_mappings(dev);
+ mutex_unlock(&dev->struct_mutex);
+ }
+
i915_restore_state(dev);
intel_opregion_setup(dev);
@@ -315,10 +357,14 @@ static int i915_drm_thaw(struct drm_device *dev)
error = i915_gem_init_ringbuffer(dev);
mutex_unlock(&dev->struct_mutex);
+ drm_mode_config_reset(dev);
drm_irq_install(dev);
/* Resume the modeset for every activated CRTC */
drm_helper_resume_force_mode(dev);
+
+ if (IS_IRONLAKE_M(dev))
+ ironlake_enable_rc6(dev);
}
intel_opregion_init(dev);
@@ -332,6 +378,9 @@ int i915_resume(struct drm_device *dev)
{
int ret;
+ if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ return 0;
+
if (pci_enable_device(dev->pdev))
return -EIO;
@@ -405,6 +454,14 @@ static int ironlake_do_reset(struct drm_device *dev, u8 flags)
return wait_for(I915_READ(MCHBAR_MIRROR_BASE + ILK_GDSR) & 0x1, 500);
}
+static int gen6_do_reset(struct drm_device *dev, u8 flags)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ I915_WRITE(GEN6_GDRST, GEN6_GRDOM_FULL);
+ return wait_for((I915_READ(GEN6_GDRST) & GEN6_GRDOM_FULL) == 0, 500);
+}
+
/**
* i965_reset - reset chip after a hang
* @dev: drm device to reset
@@ -431,7 +488,11 @@ int i915_reset(struct drm_device *dev, u8 flags)
bool need_display = true;
int ret;
- mutex_lock(&dev->struct_mutex);
+ if (!i915_try_reset)
+ return 0;
+
+ if (!mutex_trylock(&dev->struct_mutex))
+ return -EBUSY;
i915_gem_reset(dev);
@@ -439,6 +500,9 @@ int i915_reset(struct drm_device *dev, u8 flags)
if (get_seconds() - dev_priv->last_gpu_reset < 5) {
DRM_ERROR("GPU hanging too fast, declaring wedged!\n");
} else switch (INTEL_INFO(dev)->gen) {
+ case 6:
+ ret = gen6_do_reset(dev, flags);
+ break;
case 5:
ret = ironlake_do_reset(dev, flags);
break;
@@ -472,11 +536,17 @@ int i915_reset(struct drm_device *dev, u8 flags)
*/
if (drm_core_check_feature(dev, DRIVER_MODESET) ||
!dev_priv->mm.suspended) {
- struct intel_ring_buffer *ring = &dev_priv->render_ring;
dev_priv->mm.suspended = 0;
- ring->init(dev, ring);
+
+ dev_priv->ring[RCS].init(&dev_priv->ring[RCS]);
+ if (HAS_BSD(dev))
+ dev_priv->ring[VCS].init(&dev_priv->ring[VCS]);
+ if (HAS_BLT(dev))
+ dev_priv->ring[BCS].init(&dev_priv->ring[BCS]);
+
mutex_unlock(&dev->struct_mutex);
drm_irq_uninstall(dev);
+ drm_mode_config_reset(dev);
drm_irq_install(dev);
mutex_lock(&dev->struct_mutex);
}
@@ -501,6 +571,14 @@ int i915_reset(struct drm_device *dev, u8 flags)
static int __devinit
i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
+ /* Only bind to function 0 of the device. Early generations
+ * used function 1 as a placeholder for multi-head. This causes
+ * us confusion instead, especially on the systems where both
+ * functions have the same PCI-ID!
+ */
+ if (PCI_FUNC(pdev->devfn))
+ return -ENODEV;
+
return drm_get_pci_dev(pdev, ent, &driver);
}
@@ -523,6 +601,9 @@ static int i915_pm_suspend(struct device *dev)
return -ENODEV;
}
+ if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ return 0;
+
error = i915_drm_freeze(drm_dev);
if (error)
return error;
@@ -606,6 +687,8 @@ static struct drm_driver driver = {
.device_is_agp = i915_driver_device_is_agp,
.enable_vblank = i915_enable_vblank,
.disable_vblank = i915_disable_vblank,
+ .get_vblank_timestamp = i915_get_vblank_timestamp,
+ .get_scanout_position = i915_get_crtc_scanoutpos,
.irq_preinstall = i915_driver_irq_preinstall,
.irq_postinstall = i915_driver_irq_postinstall,
.irq_uninstall = i915_driver_irq_uninstall,
@@ -661,8 +744,6 @@ 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.
@@ -684,17 +765,14 @@ static int __init i915_init(void)
driver.driver_features &= ~DRIVER_MODESET;
#endif
- if (!(driver.driver_features & DRIVER_MODESET)) {
- driver.suspend = i915_suspend;
- driver.resume = i915_resume;
- }
+ if (!(driver.driver_features & DRIVER_MODESET))
+ driver.get_vblank_timestamp = NULL;
return drm_init(&driver);
}
static void __exit i915_exit(void)
{
- i915_gem_shrinker_exit();
drm_exit(&driver);
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.