WebSVN – Kolibri OS – Diff – /drivers/video/drm/radeon/radeon_irq_kms.c

 /*
  * Copyright 2008 Advanced Micro Devices, Inc.
  * Copyright 2008 Red Hat Inc.
  * Copyright 2009 Jerome Glisse.
+ *
  * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
  * Authors: Dave Airlie
  *          Alex Deucher
  *          Jerome Glisse
  */
-#include "drmP.h"
+#include
-#include "drm_crtc_helper.h"
+#include
-#include "radeon_drm.h"
+#include
 #include "radeon_reg.h"
 #include "radeon.h"
 #include "atom.h"
+#define RADEON_WAIT_IDLE_TIMEOUT 200
 struct radeon_device *main_device;
 extern int irq_override;
+/**
+ * radeon_driver_irq_handler_kms - irq handler for KMS
+ *
+ * @DRM_IRQ_ARGS: args
+ *
+ * This is the irq handler for the radeon KMS driver (all asics).
+ * radeon_irq_process is a macro that points to the per-asic
+ * irq handler callback.
  */
 void irq_handler_kms()
-{
 //    dbgprintf("%s\n",__FUNCTION__);
     radeon_irq_process(main_device);
+}
+/**
+ * radeon_driver_irq_preinstall_kms - drm irq preinstall callback
+ *
+ * @dev: drm dev pointer
+ *
+ * Gets the hw ready to enable irqs (all asics).
+ * This function disables all interrupt sources on the GPU.
+ */
-static void radeon_irq_preinstall(struct radeon_device *rdev)
+void radeon_irq_preinstall_kms(struct radeon_device *rdev)
+{
 	unsigned long irqflags;
+    unsigned i;
     unsigned i;
-    /* Disable *all* interrupts */
-    rdev->irq.sw_int = false;
+	spin_lock_irqsave(&rdev->irq.lock, irqflags);
-    rdev->irq.gui_idle = false;
+    /* Disable *all* interrupts */
-    for (i = 0; i < rdev->num_crtc; i++)
+	for (i = 0; i < RADEON_NUM_RINGS; i++)
-        rdev->irq.crtc_vblank_int[i] = false;
+		atomic_set(&rdev->irq.ring_int[i], 0);
+	for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
-    for (i = 0; i < 6; i++) {
+		rdev->irq.hpd[i] = false;
+	for (i = 0; i < RADEON_MAX_CRTCS; i++) {
+        rdev->irq.crtc_vblank_int[i] = false;
-        rdev->irq.hpd[i] = false;
+		atomic_set(&rdev->irq.pflip[i], 0);
-        rdev->irq.pflip[i] = false;
+		rdev->irq.afmt[i] = false;
+    }
     radeon_irq_set(rdev);
-    radeon_irq_set(rdev);
+	spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
     /* Clear bits */
     radeon_irq_process(rdev);
+}
+/**
+ * radeon_driver_irq_postinstall_kms - drm irq preinstall callback
+ *
+ * @dev: drm dev pointer
+ *
+ * Handles stuff to be done after enabling irqs (all asics).
+ * Returns 0 on success.
+ */
-int radeon_driver_irq_postinstall(struct radeon_device *rdev)
+int radeon_driver_irq_postinstall_kms(struct radeon_device *rdev)
+{
 //    struct radeon_device *rdev = dev->dev_private;
 //    dev->max_vblank_count = 0x001fffff;
-    rdev->irq.sw_int = true;
     radeon_irq_set(rdev);
     return 0;
+}
+/**
+ * radeon_irq_kms_init - init driver interrupt info
+ *
+ * @rdev: radeon device pointer
+ *
+ * Sets up the work irq handlers, vblank init, MSIs, etc. (all asics).
+ * Returns 0 for success, error for failure.
  */
 int radeon_irq_kms_init(struct radeon_device *rdev)
-{
 	int i;
     int irq_line;
 	int r = 0;
     ENTER();
-//   INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
+//    INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
+//	INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi);
-	spin_lock_init(&rdev->irq.sw_lock);
-	for (i = 0; i < rdev->num_crtc; i++)
-		spin_lock_init(&rdev->irq.pflip_lock[i]);
+	spin_lock_init(&rdev->irq.lock);
 //   r = drm_vblank_init(rdev->ddev, rdev->num_crtc);
 //   if (r) {
 //       return r;
 //   }
+	/* enable msi */
 	rdev->msi_enabled = 0;
+//	if (radeon_msi_ok(rdev)) {
+//		int ret = pci_enable_msi(rdev->pdev);
+//		if (!ret) {
+//			rdev->msi_enabled = 1;
+//			dev_info(rdev->dev, "radeon: using MSI.\n");
+//		}
+//	}
     rdev->irq.installed = true;
     main_device = rdev;
-    radeon_irq_preinstall(rdev);
+    radeon_irq_preinstall_kms(rdev);
     if (irq_override)
         irq_line = irq_override;
     else
         irq_line = rdev->pdev->irq;
     dbgprintf("%s install irq %d\n", __FUNCTION__, irq_line);
     AttachIntHandler(irq_line, irq_handler_kms, 2);
 //   r = drm_irq_install(rdev->ddev);
-    r = radeon_driver_irq_postinstall(rdev);
+    r = radeon_driver_irq_postinstall_kms(rdev);
     if (r) {
        rdev->irq.installed = false;
         LEAVE();
        return r;
+   }
 	DRM_INFO("radeon: irq initialized.\n");
 	return 0;
+}
+/**
+ * radeon_irq_kms_fini - tear down driver interrrupt info
+ *
+ * @rdev: radeon device pointer
+ *
+ * Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics).
+ */
+void radeon_irq_kms_fini(struct radeon_device *rdev)
+{
+//	drm_vblank_cleanup(rdev->ddev);
+	if (rdev->irq.installed) {
+//		drm_irq_uninstall(rdev->ddev);
+		rdev->irq.installed = false;
+//       if (rdev->msi_enabled)
+//			pci_disable_msi(rdev->pdev);
+	}
+//	flush_work(&rdev->hotplug_work);
+}
+/**
+ * radeon_irq_kms_sw_irq_get - enable software interrupt
+ *
+ * @rdev: radeon device pointer
+ * @ring: ring whose interrupt you want to enable
+ *
+ * Enables the software interrupt for a specific ring (all asics).
+ * The software interrupt is generally used to signal a fence on
+ * a particular ring.
  */
-void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev)
+void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev, int ring)
+{
 	unsigned long irqflags;
+	if (!rdev->ddev->irq_enabled)
+		return;
-	spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);
-	if (rdev->ddev->irq_enabled && (++rdev->irq.sw_refcount == 1)) {
+	if (atomic_inc_return(&rdev->irq.ring_int[ring]) == 1) {
-		rdev->irq.sw_int = true;
+		spin_lock_irqsave(&rdev->irq.lock, irqflags);
+		radeon_irq_set(rdev);
-		radeon_irq_set(rdev);
+		spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
-	}
 	spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);
+}
+/**
+ * radeon_irq_kms_sw_irq_put - disable software interrupt
+ *
+ * @rdev: radeon device pointer
+ * @ring: ring whose interrupt you want to disable
+ *
+ * Disables the software interrupt for a specific ring (all asics).
+ * The software interrupt is generally used to signal a fence on
-}
+ * a particular ring.
  */
-void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev)
+void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev, int ring)
+{
 	unsigned long irqflags;
-	spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);
+	if (!rdev->ddev->irq_enabled)
+		return;
-	BUG_ON(rdev->ddev->irq_enabled && rdev->irq.sw_refcount <= 0);
-	if (rdev->ddev->irq_enabled && (--rdev->irq.sw_refcount == 0)) {
+	if (atomic_dec_and_test(&rdev->irq.ring_int[ring])) {
-		rdev->irq.sw_int = false;
+		spin_lock_irqsave(&rdev->irq.lock, irqflags);
+		radeon_irq_set(rdev);
-		radeon_irq_set(rdev);
+		spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
-	}
 	spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);
+}

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/radeon/radeon_irq_kms.c – Rev 2160 → 2997