[linux-2.6-block.git] / drivers / gpu / 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 "radeon_drm.h"
#include "radeon_reg.h"
#include "radeon_microcode.h"
#include "radeon.h"
#include "atom.h"

irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS)
{
	struct drm_device *dev = (struct drm_device *) arg;
	struct radeon_device *rdev = dev->dev_private;

	return radeon_irq_process(rdev);
}

void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;
	unsigned i;

	/* Disable *all* interrupts */
	rdev->irq.sw_int = false;
	for (i = 0; i < 2; i++) {
		rdev->irq.crtc_vblank_int[i] = false;
	}
	radeon_irq_set(rdev);
	/* Clear bits */
	radeon_irq_process(rdev);
}

int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;

	dev->max_vblank_count = 0x001fffff;
	rdev->irq.sw_int = true;
	radeon_irq_set(rdev);
	return 0;
}

void radeon_driver_irq_uninstall_kms(struct drm_device *dev)
{
	struct radeon_device *rdev = dev->dev_private;
	unsigned i;

	if (rdev == NULL) {
		return;
	}
	/* Disable *all* interrupts */
	rdev->irq.sw_int = false;
	for (i = 0; i < 2; i++) {
		rdev->irq.crtc_vblank_int[i] = false;
	}
	radeon_irq_set(rdev);
}

int radeon_irq_kms_init(struct radeon_device *rdev)
{
	int r = 0;

	r = drm_vblank_init(rdev->ddev, 2);
	if (r) {
		return r;
	}
	drm_irq_install(rdev->ddev);
	rdev->irq.installed = true;
	DRM_INFO("radeon: irq initialized.\n");
	return 0;
}

void radeon_irq_kms_fini(struct radeon_device *rdev)
{
	if (rdev->irq.installed) {
		rdev->irq.installed = false;
		drm_irq_uninstall(rdev->ddev);
	}
}
Commit	Line	Data
771fe6b9 JG	1	/*
	2	* Copyright 2008 Advanced Micro Devices, Inc.
	3	* Copyright 2008 Red Hat Inc.
	4	* Copyright 2009 Jerome Glisse.
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a
	7	* copy of this software and associated documentation files (the "Software"),
	8	* to deal in the Software without restriction, including without limitation
	9	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	10	* and/or sell copies of the Software, and to permit persons to whom the
	11	* Software is furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	20	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	21	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	22	* OTHER DEALINGS IN THE SOFTWARE.
	23	*
	24	* Authors: Dave Airlie
	25	* Alex Deucher
	26	* Jerome Glisse
	27	*/
	28	#include "drmP.h"
	29	#include "radeon_drm.h"
	30	#include "radeon_reg.h"
	31	#include "radeon_microcode.h"
	32	#include "radeon.h"
	33	#include "atom.h"
	34
771fe6b9 JG	35	irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS)
	36	{
	37	struct drm_device dev = (struct drm_device ) arg;
	38	struct radeon_device *rdev = dev->dev_private;
	39
	40	return radeon_irq_process(rdev);
	41	}
	42
	43	void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
	44	{
	45	struct radeon_device *rdev = dev->dev_private;
	46	unsigned i;
	47
	48	/* Disable all interrupts */
	49	rdev->irq.sw_int = false;
	50	for (i = 0; i < 2; i++) {
	51	rdev->irq.crtc_vblank_int[i] = false;
	52	}
	53	radeon_irq_set(rdev);
	54	/* Clear bits */
	55	radeon_irq_process(rdev);
	56	}
	57
	58	int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
	59	{
	60	struct radeon_device *rdev = dev->dev_private;
	61
	62	dev->max_vblank_count = 0x001fffff;
	63	rdev->irq.sw_int = true;
	64	radeon_irq_set(rdev);
	65	return 0;
	66	}
	67
	68	void radeon_driver_irq_uninstall_kms(struct drm_device *dev)
	69	{
	70	struct radeon_device *rdev = dev->dev_private;
	71	unsigned i;
	72
	73	if (rdev == NULL) {
	74	return;
	75	}
	76	/* Disable all interrupts */
	77	rdev->irq.sw_int = false;
	78	for (i = 0; i < 2; i++) {
	79	rdev->irq.crtc_vblank_int[i] = false;
	80	}
	81	radeon_irq_set(rdev);
	82	}
	83
	84	int radeon_irq_kms_init(struct radeon_device *rdev)
	85	{
	86	int r = 0;
	87
	88	r = drm_vblank_init(rdev->ddev, 2);
	89	if (r) {
	90	return r;
	91	}
	92	drm_irq_install(rdev->ddev);
	93	rdev->irq.installed = true;
	94	DRM_INFO("radeon: irq initialized.\n");
	95	return 0;
	96	}
	97
	98	void radeon_irq_kms_fini(struct radeon_device *rdev)
99	{
100	if (rdev->irq.installed) {
101	rdev->irq.installed = false;
102	drm_irq_uninstall(rdev->ddev);
103	}
104	}