[PATCH 04/14] drm/i915: Move out non-display related calls from display/modeset init/cleanup
José Roberto de Souza
jose.souza at intel.com
Fri Jul 27 20:41:20 UTC 2018
i915_load_modeset_init() and intel_modeset_cleanup() was initializing
and cleaning up things that is not display only.
This will make easy initialize driver without display block.
Also moving VLV/CHV/BYT czclk as it is a core clock used as base by
several other GPU blocks not only display, including gem/GT.
Spec: 14370
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
drivers/gpu/drm/i915/i915_drv.c | 86 ++++++++++++++++++----------
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/intel_display.c | 28 ++-------
drivers/gpu/drm/i915/intel_pm.c | 10 ++++
4 files changed, 72 insertions(+), 53 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 62f34f8aa02b..3ca30b9f2096 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -665,28 +665,15 @@ static int i915_load_modeset_init(struct drm_device *dev)
if (ret)
goto cleanup_vga_client;
- /* must happen before intel_power_domains_init_hw() on VLV/CHV */
- intel_update_rawclk(dev_priv);
-
- intel_power_domains_init_hw(dev_priv, false);
-
intel_csr_ucode_init(dev_priv);
- ret = intel_irq_install(dev_priv);
- if (ret)
- goto cleanup_csr;
-
intel_setup_gmbus(dev_priv);
/* Important: The output setup functions called by modeset_init need
* working irqs for e.g. gmbus and dp aux transfers. */
ret = intel_modeset_init(dev);
if (ret)
- goto cleanup_irq;
-
- ret = i915_gem_init(dev_priv);
- if (ret)
- goto cleanup_modeset;
+ goto cleanup_gmbus;
intel_setup_overlay(dev_priv);
@@ -695,25 +682,18 @@ static int i915_load_modeset_init(struct drm_device *dev)
ret = intel_fbdev_init(dev);
if (ret)
- goto cleanup_gem;
+ goto cleanup_modeset;
/* Only enable hotplug handling once the fbdev is fully set up. */
intel_hpd_init(dev_priv);
return 0;
-cleanup_gem:
- if (i915_gem_suspend(dev_priv))
- DRM_ERROR("failed to idle hardware; continuing to unload!\n");
- i915_gem_fini(dev_priv);
cleanup_modeset:
intel_modeset_cleanup(dev);
-cleanup_irq:
- drm_irq_uninstall(dev);
+cleanup_gmbus:
intel_teardown_gmbus(dev_priv);
-cleanup_csr:
intel_csr_ucode_fini(dev_priv);
- intel_power_domains_fini(dev_priv);
vga_switcheroo_unregister_client(pdev);
cleanup_vga_client:
vga_client_register(pdev, NULL, NULL, NULL);
@@ -1397,9 +1377,25 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out_cleanup_hw;
}
+ /* must happen before intel_power_domains_init_hw() on VLV/CHV */
+ intel_update_rawclk(dev_priv);
+
+ /* i915_gem_init() call chain will call
+ * intel_display_power_put(i915, POWER_DOMAIN_GT_IRQ);
+ */
+ intel_power_domains_init_hw(dev_priv, false);
+
+ ret = intel_irq_install(dev_priv);
+ if (ret)
+ goto out_cleanup_power;
+
+ ret = i915_gem_init(dev_priv);
+ if (ret)
+ goto cleanup_irq;
+
ret = i915_load_modeset_init(&dev_priv->drm);
if (ret < 0)
- goto out_cleanup_hw;
+ goto cleanup_gem;
i915_driver_register(dev_priv);
@@ -1413,6 +1409,15 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)
return 0;
+cleanup_gem:
+ if (i915_gem_suspend(dev_priv))
+ DRM_ERROR("failed to idle hardware; continuing to unload!\n");
+ intel_cleanup_gt_powersave(dev_priv);
+ i915_gem_fini(dev_priv);
+cleanup_irq:
+ drm_irq_uninstall(&dev_priv->drm);
+out_cleanup_power:
+ intel_power_domains_fini(dev_priv);
out_cleanup_hw:
i915_driver_cleanup_hw(dev_priv);
out_cleanup_mmio:
@@ -1431,11 +1436,24 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)
return ret;
}
-void i915_driver_unload(struct drm_device *dev)
+/* unload/cleanup the leftover of i915_load_modeset_init() */
+static void i915_modeset_unload(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct pci_dev *pdev = dev_priv->drm.pdev;
+ intel_bios_cleanup(dev_priv);
+
+ vga_switcheroo_unregister_client(pdev);
+ vga_client_register(pdev, NULL, NULL, NULL);
+
+ intel_csr_ucode_fini(dev_priv);
+}
+
+void i915_driver_unload(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = to_i915(dev);
+
i915_driver_unregister(dev_priv);
if (i915_gem_suspend(dev_priv))
@@ -1447,14 +1465,22 @@ void i915_driver_unload(struct drm_device *dev)
intel_gvt_cleanup(dev_priv);
- intel_modeset_cleanup(dev);
+ intel_modeset_cleanup_prepare(dev);
- intel_bios_cleanup(dev_priv);
+ intel_disable_gt_powersave(dev_priv);
- vga_switcheroo_unregister_client(pdev);
- vga_client_register(pdev, NULL, NULL, NULL);
+ /*
+ * Interrupts and polling as the first thing to avoid creating havoc.
+ * Too much stuff here (turning of connectors, ...) would
+ * experience fancy races otherwise.
+ */
+ intel_irq_uninstall(dev_priv);
- intel_csr_ucode_fini(dev_priv);
+ intel_modeset_cleanup(dev);
+
+ intel_cleanup_gt_powersave(dev_priv);
+
+ i915_modeset_unload(dev);
/* Free error state after interrupts are fully disabled. */
cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0f49f9988dfa..d50fd9825b10 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3411,6 +3411,7 @@ mkwrite_device_info(struct drm_i915_private *dev_priv)
/* modesetting */
extern void intel_modeset_init_hw(struct drm_device *dev);
extern int intel_modeset_init(struct drm_device *dev);
+void intel_modeset_cleanup_prepare(struct drm_device *dev);
extern void intel_modeset_cleanup(struct drm_device *dev);
extern int intel_connector_register(struct drm_connector *);
extern void intel_connector_unregister(struct drm_connector *);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 577b30dde45b..1b0ee796f697 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -218,17 +218,6 @@ int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv,
dev_priv->hpll_freq);
}
-static void intel_update_czclk(struct drm_i915_private *dev_priv)
-{
- if (!(IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)))
- return;
-
- dev_priv->czclk_freq = vlv_get_cck_clock_hpll(dev_priv, "czclk",
- CCK_CZ_CLOCK_CONTROL);
-
- DRM_DEBUG_DRIVER("CZ clock rate: %d kHz\n", dev_priv->czclk_freq);
-}
-
static inline u32 /* units of 100MHz */
intel_fdi_link_freq(struct drm_i915_private *dev_priv,
const struct intel_crtc_state *pipe_config)
@@ -15247,7 +15236,6 @@ int intel_modeset_init(struct drm_device *dev)
intel_shared_dpll_init(dev);
intel_update_fdi_pll_freq(dev_priv);
- intel_update_czclk(dev_priv);
intel_modeset_init_hw(dev);
if (dev_priv->max_cdclk_freq == 0)
@@ -15962,7 +15950,7 @@ static void intel_hpd_poll_fini(struct drm_device *dev)
drm_connector_list_iter_end(&conn_iter);
}
-void intel_modeset_cleanup(struct drm_device *dev)
+void intel_modeset_cleanup_prepare(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -15970,15 +15958,11 @@ void intel_modeset_cleanup(struct drm_device *dev)
flush_work(&dev_priv->atomic_helper.free_work);
WARN_ON(!llist_empty(&dev_priv->atomic_helper.free_list));
+}
- intel_disable_gt_powersave(dev_priv);
-
- /*
- * Interrupts and polling as the first thing to avoid creating havoc.
- * Too much stuff here (turning of connectors, ...) would
- * experience fancy races otherwise.
- */
- intel_irq_uninstall(dev_priv);
+void intel_modeset_cleanup(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = to_i915(dev);
/*
* Due to the hpd irq storm handling the hotplug work can re-arm the
@@ -16000,8 +15984,6 @@ void intel_modeset_cleanup(struct drm_device *dev)
intel_cleanup_overlay(dev_priv);
- intel_cleanup_gt_powersave(dev_priv);
-
intel_teardown_gmbus(dev_priv);
destroy_workqueue(dev_priv->modeset_wq);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 7312ecb73415..e54a65405448 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7365,6 +7365,14 @@ static void vlv_init_gpll_ref_freq(struct drm_i915_private *dev_priv)
dev_priv->gt_pm.rps.gpll_ref_freq);
}
+static void valleyview_update_czclk(struct drm_i915_private *dev_priv)
+{
+ dev_priv->czclk_freq = vlv_get_cck_clock_hpll(dev_priv, "czclk",
+ CCK_CZ_CLOCK_CONTROL);
+
+ DRM_DEBUG_DRIVER("CZ clock rate: %d kHz\n", dev_priv->czclk_freq);
+}
+
static void valleyview_init_gt_powersave(struct drm_i915_private *dev_priv)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
@@ -7372,6 +7380,7 @@ static void valleyview_init_gt_powersave(struct drm_i915_private *dev_priv)
valleyview_setup_pctx(dev_priv);
+ valleyview_update_czclk(dev_priv);
vlv_init_gpll_ref_freq(dev_priv);
val = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
@@ -7418,6 +7427,7 @@ static void cherryview_init_gt_powersave(struct drm_i915_private *dev_priv)
cherryview_setup_pctx(dev_priv);
+ valleyview_update_czclk(dev_priv);
vlv_init_gpll_ref_freq(dev_priv);
mutex_lock(&dev_priv->sb_lock);
--
2.18.0
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