1f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie/* 2f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * Copyright 2013 Red Hat Inc. 3f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * 4f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * Permission is hereby granted, free of charge, to any person obtaining a 5f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * copy of this software and associated documentation files (the "Software"), 6f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * to deal in the Software without restriction, including without limitation 7f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * and/or sell copies of the Software, and to permit persons to whom the 9f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * Software is furnished to do so, subject to the following conditions: 10f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * 11f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * The above copyright notice and this permission notice shall be included in 12f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * all copies or substantial portions of the Software. 13f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * 14f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * OTHER DEALINGS IN THE SOFTWARE. 21f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * 22f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * Authors: Dave Airlie 23f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * Alon Levy 24f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie */ 25f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 26f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie#include "qxl_drv.h" 27f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 28e9f0d76f3bcd4dda7136baaaaf45bda3b13ff40fDaniel Vetterirqreturn_t qxl_irq_handler(int irq, void *arg) 29f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie{ 30f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie struct drm_device *dev = (struct drm_device *) arg; 31f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie struct qxl_device *qdev = (struct qxl_device *)dev->dev_private; 32f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie uint32_t pending; 33f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 34f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie pending = xchg(&qdev->ram_header->int_pending, 0); 35f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 36fbb60fe35ad579b511de8604b06a30b43846473bJason Wang if (!pending) 37fbb60fe35ad579b511de8604b06a30b43846473bJason Wang return IRQ_NONE; 38fbb60fe35ad579b511de8604b06a30b43846473bJason Wang 39f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie atomic_inc(&qdev->irq_received); 40f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 41f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie if (pending & QXL_INTERRUPT_DISPLAY) { 42f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie atomic_inc(&qdev->irq_received_display); 43f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie wake_up_all(&qdev->display_event); 44f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qxl_queue_garbage_collect(qdev, false); 45f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie } 46f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie if (pending & QXL_INTERRUPT_CURSOR) { 47f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie atomic_inc(&qdev->irq_received_cursor); 48f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie wake_up_all(&qdev->cursor_event); 49f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie } 50f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie if (pending & QXL_INTERRUPT_IO_CMD) { 51f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie atomic_inc(&qdev->irq_received_io_cmd); 52f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie wake_up_all(&qdev->io_cmd_event); 53f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie } 54f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie if (pending & QXL_INTERRUPT_ERROR) { 55f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie /* TODO: log it, reset device (only way to exit this condition) 56f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * (do it a certain number of times, afterwards admit defeat, 57f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie * to avoid endless loops). 58f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie */ 59f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qdev->irq_received_error++; 60f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qxl_io_log(qdev, "%s: driver is in bug mode.\n", __func__); 61f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie } 62f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie if (pending & QXL_INTERRUPT_CLIENT_MONITORS_CONFIG) { 63f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qxl_io_log(qdev, "QXL_INTERRUPT_CLIENT_MONITORS_CONFIG\n"); 64f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie schedule_work(&qdev->client_monitors_config_work); 65f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie } 66f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qdev->ram_header->int_mask = QXL_INTERRUPT_MASK; 67f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie outb(0, qdev->io_base + QXL_IO_UPDATE_IRQ); 68f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie return IRQ_HANDLED; 69f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie} 70f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 71f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airliestatic void qxl_client_monitors_config_work_func(struct work_struct *work) 72f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie{ 73f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie struct qxl_device *qdev = container_of(work, struct qxl_device, 74f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie client_monitors_config_work); 75f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 76f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qxl_display_read_client_monitors_config(qdev); 77f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie} 78f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 79f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlieint qxl_irq_init(struct qxl_device *qdev) 80f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie{ 81f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie int ret; 82f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie 83f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie init_waitqueue_head(&qdev->display_event); 84f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie init_waitqueue_head(&qdev->cursor_event); 85f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie init_waitqueue_head(&qdev->io_cmd_event); 86f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie INIT_WORK(&qdev->client_monitors_config_work, 87f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qxl_client_monitors_config_work_func); 88f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie atomic_set(&qdev->irq_received, 0); 89f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie atomic_set(&qdev->irq_received_display, 0); 90f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie atomic_set(&qdev->irq_received_cursor, 0); 91f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie atomic_set(&qdev->irq_received_io_cmd, 0); 92f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qdev->irq_received_error = 0; 93bb0f1b5c1695b4399cfd2359c114ae63edbb3ad8Daniel Vetter ret = drm_irq_install(qdev->ddev, qdev->ddev->pdev->irq); 94f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie qdev->ram_header->int_mask = QXL_INTERRUPT_MASK; 95f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie if (unlikely(ret != 0)) { 96f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie DRM_ERROR("Failed installing irq: %d\n", ret); 97f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie return 1; 98f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie } 99f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie return 0; 100f64122c1f6ade301585569863b4b3b18f6e4e332Dave Airlie} 101