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path: root/drivers/gpu/drm/i915/i915_drv.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c148
1 files changed, 81 insertions, 67 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index bfb2efd8d4d4..912d5348e3e7 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -114,7 +114,7 @@ static bool i915_error_injected(struct drm_i915_private *dev_priv)
fmt, ##__VA_ARGS__)
-static enum intel_pch intel_virt_detect_pch(struct drm_device *dev)
+static enum intel_pch intel_virt_detect_pch(struct drm_i915_private *dev_priv)
{
enum intel_pch ret = PCH_NOP;
@@ -125,16 +125,16 @@ static enum intel_pch intel_virt_detect_pch(struct drm_device *dev)
* make an educated guess as to which PCH is really there.
*/
- if (IS_GEN5(dev)) {
+ if (IS_GEN5(dev_priv)) {
ret = PCH_IBX;
DRM_DEBUG_KMS("Assuming Ibex Peak PCH\n");
- } else if (IS_GEN6(dev) || IS_IVYBRIDGE(dev)) {
+ } else if (IS_GEN6(dev_priv) || IS_IVYBRIDGE(dev_priv)) {
ret = PCH_CPT;
DRM_DEBUG_KMS("Assuming CouarPoint PCH\n");
- } else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
+ } else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
ret = PCH_LPT;
DRM_DEBUG_KMS("Assuming LynxPoint PCH\n");
- } else if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev)) {
+ } else if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
ret = PCH_SPT;
DRM_DEBUG_KMS("Assuming SunrisePoint PCH\n");
}
@@ -174,40 +174,46 @@ static void intel_detect_pch(struct drm_device *dev)
if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_IBX;
DRM_DEBUG_KMS("Found Ibex Peak PCH\n");
- WARN_ON(!IS_GEN5(dev));
+ WARN_ON(!IS_GEN5(dev_priv));
} else if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_CPT;
DRM_DEBUG_KMS("Found CougarPoint PCH\n");
- WARN_ON(!(IS_GEN6(dev) || IS_IVYBRIDGE(dev)));
+ WARN_ON(!(IS_GEN6(dev_priv) ||
+ IS_IVYBRIDGE(dev_priv)));
} else if (id == INTEL_PCH_PPT_DEVICE_ID_TYPE) {
/* PantherPoint is CPT compatible */
dev_priv->pch_type = PCH_CPT;
DRM_DEBUG_KMS("Found PantherPoint PCH\n");
- WARN_ON(!(IS_GEN6(dev) || IS_IVYBRIDGE(dev)));
+ WARN_ON(!(IS_GEN6(dev_priv) ||
+ IS_IVYBRIDGE(dev_priv)));
} else if (id == INTEL_PCH_LPT_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_LPT;
DRM_DEBUG_KMS("Found LynxPoint PCH\n");
- WARN_ON(!IS_HASWELL(dev) && !IS_BROADWELL(dev));
- WARN_ON(IS_HSW_ULT(dev) || IS_BDW_ULT(dev));
+ WARN_ON(!IS_HASWELL(dev_priv) &&
+ !IS_BROADWELL(dev_priv));
+ WARN_ON(IS_HSW_ULT(dev_priv) ||
+ IS_BDW_ULT(dev_priv));
} else if (id == INTEL_PCH_LPT_LP_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_LPT;
DRM_DEBUG_KMS("Found LynxPoint LP PCH\n");
- WARN_ON(!IS_HASWELL(dev) && !IS_BROADWELL(dev));
- WARN_ON(!IS_HSW_ULT(dev) && !IS_BDW_ULT(dev));
+ WARN_ON(!IS_HASWELL(dev_priv) &&
+ !IS_BROADWELL(dev_priv));
+ WARN_ON(!IS_HSW_ULT(dev_priv) &&
+ !IS_BDW_ULT(dev_priv));
} else if (id == INTEL_PCH_SPT_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_SPT;
DRM_DEBUG_KMS("Found SunrisePoint PCH\n");
- WARN_ON(!IS_SKYLAKE(dev) &&
- !IS_KABYLAKE(dev));
+ WARN_ON(!IS_SKYLAKE(dev_priv) &&
+ !IS_KABYLAKE(dev_priv));
} else if (id == INTEL_PCH_SPT_LP_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_SPT;
DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n");
- WARN_ON(!IS_SKYLAKE(dev) &&
- !IS_KABYLAKE(dev));
+ WARN_ON(!IS_SKYLAKE(dev_priv) &&
+ !IS_KABYLAKE(dev_priv));
} else if (id == INTEL_PCH_KBP_DEVICE_ID_TYPE) {
dev_priv->pch_type = PCH_KBP;
DRM_DEBUG_KMS("Found KabyPoint PCH\n");
- WARN_ON(!IS_KABYLAKE(dev));
+ WARN_ON(!IS_KABYLAKE(dev_priv));
} else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) ||
(id == INTEL_PCH_P3X_DEVICE_ID_TYPE) ||
((id == INTEL_PCH_QEMU_DEVICE_ID_TYPE) &&
@@ -215,7 +221,8 @@ static void intel_detect_pch(struct drm_device *dev)
PCI_SUBVENDOR_ID_REDHAT_QUMRANET &&
pch->subsystem_device ==
PCI_SUBDEVICE_ID_QEMU)) {
- dev_priv->pch_type = intel_virt_detect_pch(dev);
+ dev_priv->pch_type =
+ intel_virt_detect_pch(dev_priv);
} else
continue;
@@ -255,16 +262,16 @@ static int i915_getparam(struct drm_device *dev, void *data,
value = dev_priv->overlay ? 1 : 0;
break;
case I915_PARAM_HAS_BSD:
- value = intel_engine_initialized(&dev_priv->engine[VCS]);
+ value = !!dev_priv->engine[VCS];
break;
case I915_PARAM_HAS_BLT:
- value = intel_engine_initialized(&dev_priv->engine[BCS]);
+ value = !!dev_priv->engine[BCS];
break;
case I915_PARAM_HAS_VEBOX:
- value = intel_engine_initialized(&dev_priv->engine[VECS]);
+ value = !!dev_priv->engine[VECS];
break;
case I915_PARAM_HAS_BSD2:
- value = intel_engine_initialized(&dev_priv->engine[VCS2]);
+ value = !!dev_priv->engine[VCS2];
break;
case I915_PARAM_HAS_EXEC_CONSTANTS:
value = INTEL_GEN(dev_priv) >= 4;
@@ -417,12 +424,12 @@ intel_setup_mchbar(struct drm_device *dev)
u32 temp;
bool enabled;
- if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev))
+ if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
return;
dev_priv->mchbar_need_disable = false;
- if (IS_I915G(dev) || IS_I915GM(dev)) {
+ if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) {
pci_read_config_dword(dev_priv->bridge_dev, DEVEN, &temp);
enabled = !!(temp & DEVEN_MCHBAR_EN);
} else {
@@ -440,7 +447,7 @@ intel_setup_mchbar(struct drm_device *dev)
dev_priv->mchbar_need_disable = true;
/* Space is allocated or reserved, so enable it. */
- if (IS_I915G(dev) || IS_I915GM(dev)) {
+ if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) {
pci_write_config_dword(dev_priv->bridge_dev, DEVEN,
temp | DEVEN_MCHBAR_EN);
} else {
@@ -456,7 +463,7 @@ intel_teardown_mchbar(struct drm_device *dev)
int mchbar_reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915;
if (dev_priv->mchbar_need_disable) {
- if (IS_I915G(dev) || IS_I915GM(dev)) {
+ if (IS_I915G(dev_priv) || IS_I915GM(dev_priv)) {
u32 deven_val;
pci_read_config_dword(dev_priv->bridge_dev, DEVEN,
@@ -532,32 +539,6 @@ static const struct vga_switcheroo_client_ops i915_switcheroo_ops = {
static void i915_gem_fini(struct drm_device *dev)
{
- struct drm_i915_private *dev_priv = to_i915(dev);
-
- /*
- * Neither the BIOS, ourselves or any other kernel
- * expects the system to be in execlists mode on startup,
- * so we need to reset the GPU back to legacy mode. And the only
- * known way to disable logical contexts is through a GPU reset.
- *
- * So in order to leave the system in a known default configuration,
- * always reset the GPU upon unload. Afterwards we then clean up the
- * GEM state tracking, flushing off the requests and leaving the
- * system in a known idle state.
- *
- * Note that is of the upmost importance that the GPU is idle and
- * all stray writes are flushed *before* we dismantle the backing
- * storage for the pinned objects.
- *
- * However, since we are uncertain that reseting the GPU on older
- * machines is a good idea, we don't - just in case it leaves the
- * machine in an unusable condition.
- */
- if (HAS_HW_CONTEXTS(dev)) {
- int reset = intel_gpu_reset(dev_priv, ALL_ENGINES);
- WARN_ON(reset && reset != -ENODEV);
- }
-
mutex_lock(&dev->struct_mutex);
i915_gem_cleanup_engines(dev);
i915_gem_context_fini(dev);
@@ -636,6 +617,8 @@ static int i915_load_modeset_init(struct drm_device *dev)
return 0;
cleanup_gem:
+ if (i915_gem_suspend(dev))
+ DRM_ERROR("failed to idle hardware; continuing to unload!\n");
i915_gem_fini(dev);
cleanup_irq:
intel_guc_fini(dev);
@@ -771,6 +754,19 @@ static void i915_workqueues_cleanup(struct drm_i915_private *dev_priv)
destroy_workqueue(dev_priv->wq);
}
+/*
+ * We don't keep the workarounds for pre-production hardware, so we expect our
+ * driver to fail on these machines in one way or another. A little warning on
+ * dmesg may help both the user and the bug triagers.
+ */
+static void intel_detect_preproduction_hw(struct drm_i915_private *dev_priv)
+{
+ if (IS_HSW_EARLY_SDV(dev_priv) ||
+ IS_SKL_REVID(dev_priv, 0, SKL_REVID_F0))
+ DRM_ERROR("This is a pre-production stepping. "
+ "It may not be fully functional.\n");
+}
+
/**
* i915_driver_init_early - setup state not requiring device access
* @dev_priv: device private
@@ -838,13 +834,7 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv,
intel_device_info_dump(dev_priv);
- /* Not all pre-production machines fall into this category, only the
- * very first ones. Almost everything should work, except for maybe
- * suspend/resume. And we don't implement workarounds that affect only
- * pre-production machines. */
- if (IS_HSW_EARLY_SDV(dev_priv))
- DRM_INFO("This is an early pre-production Haswell machine. "
- "It may not be fully functional.\n");
+ intel_detect_preproduction_hw(dev_priv);
return 0;
@@ -870,7 +860,7 @@ static int i915_mmio_setup(struct drm_device *dev)
int mmio_bar;
int mmio_size;
- mmio_bar = IS_GEN2(dev) ? 1 : 0;
+ mmio_bar = IS_GEN2(dev_priv) ? 1 : 0;
/*
* Before gen4, the registers and the GTT are behind different BARs.
* However, from gen4 onwards, the registers and the GTT are shared
@@ -1023,7 +1013,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
pci_set_master(pdev);
/* overlay on gen2 is broken and can't address above 1G */
- if (IS_GEN2(dev)) {
+ if (IS_GEN2(dev_priv)) {
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(30));
if (ret) {
DRM_ERROR("failed to set DMA mask\n");
@@ -1070,7 +1060,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
* be lost or delayed, but we use them anyways to avoid
* stuck interrupts on some machines.
*/
- if (!IS_I945G(dev) && !IS_I945GM(dev)) {
+ if (!IS_I945G(dev_priv) && !IS_I945GM(dev_priv)) {
if (pci_enable_msi(pdev) < 0)
DRM_DEBUG_DRIVER("can't enable MSI");
}
@@ -1242,6 +1232,10 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)
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_priv->drm.primary->index);
+ if (IS_ENABLED(CONFIG_DRM_I915_DEBUG))
+ DRM_INFO("DRM_I915_DEBUG enabled\n");
+ if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM))
+ DRM_INFO("DRM_I915_DEBUG_GEM enabled\n");
intel_runtime_pm_put(dev_priv);
@@ -1447,8 +1441,6 @@ static int i915_drm_suspend(struct drm_device *dev)
dev_priv->suspend_count++;
- intel_display_set_init_power(dev_priv, false);
-
intel_csr_ucode_suspend(dev_priv);
out:
@@ -1466,6 +1458,8 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation)
disable_rpm_wakeref_asserts(dev_priv);
+ intel_display_set_init_power(dev_priv, false);
+
fw_csr = !IS_BROXTON(dev_priv) &&
suspend_to_idle(dev_priv) && dev_priv->csr.dmc_payload;
/*
@@ -1721,6 +1715,22 @@ int i915_resume_switcheroo(struct drm_device *dev)
return i915_drm_resume(dev);
}
+static void disable_engines_irq(struct drm_i915_private *dev_priv)
+{
+ struct intel_engine_cs *engine;
+ enum intel_engine_id id;
+
+ /* Ensure irq handler finishes, and not run again. */
+ disable_irq(dev_priv->drm.irq);
+ for_each_engine(engine, dev_priv, id)
+ tasklet_kill(&engine->irq_tasklet);
+}
+
+static void enable_engines_irq(struct drm_i915_private *dev_priv)
+{
+ enable_irq(dev_priv->drm.irq);
+}
+
/**
* i915_reset - reset chip after a hang
* @dev: drm device to reset
@@ -1754,7 +1764,11 @@ void i915_reset(struct drm_i915_private *dev_priv)
error->reset_count++;
pr_notice("drm/i915: Resetting chip after gpu hang\n");
+
+ disable_engines_irq(dev_priv);
ret = intel_gpu_reset(dev_priv, ALL_ENGINES);
+ enable_engines_irq(dev_priv);
+
if (ret) {
if (ret != -ENODEV)
DRM_ERROR("Failed to reset chip: %i\n", ret);
@@ -2282,7 +2296,7 @@ static int intel_runtime_suspend(struct device *kdev)
if (WARN_ON_ONCE(!(dev_priv->rps.enabled && intel_enable_rc6())))
return -ENODEV;
- if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev)))
+ if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev_priv)))
return -ENODEV;
DRM_DEBUG_KMS("Suspending device\n");
@@ -2386,7 +2400,7 @@ static int intel_runtime_resume(struct device *kdev)
struct drm_i915_private *dev_priv = to_i915(dev);
int ret = 0;
- if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev)))
+ if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev_priv)))
return -ENODEV;
DRM_DEBUG_KMS("Resuming device\n");
@@ -2404,7 +2418,7 @@ static int intel_runtime_resume(struct device *kdev)
if (IS_GEN6(dev_priv))
intel_init_pch_refclk(dev);
- if (IS_BROXTON(dev)) {
+ if (IS_BROXTON(dev_priv)) {
bxt_disable_dc9(dev_priv);
bxt_display_core_init(dev_priv, true);
if (dev_priv->csr.dmc_payload &&
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