455fa6518a
This update brings few features:
o Support for the setmaster/dropmaster ioctls. For instance, they
are used to run multiple X servers simultaneously.
o Support for minor devices. The only user-visible change is a new
entry in /dev/dri but it is useless at the moment. This is a
first step to support render nodes [1].
The main benefit is to greatly reduce the diff with Linux (at the
expense of an unreadable commit diff). Hopefully, next upgrades will be
easier.
No updates were made to the drivers, beside adapting them to API
changes.
[1] https://en.wikipedia.org/wiki/Direct_Rendering_Manager#Render_nodes
Tested by: Many people
MFC after: 1 month
Relnotes: yes
484 lines
13 KiB
C
484 lines
13 KiB
C
/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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* Copyright 2008 Red Hat Inc.
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* Copyright 2009 Jerome Glisse.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Dave Airlie
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* Alex Deucher
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* Jerome Glisse
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <dev/drm2/drmP.h>
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#include <dev/drm2/drm_crtc_helper.h>
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#include <dev/drm2/radeon/radeon_drm.h>
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#include "radeon_reg.h"
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#include "radeon_irq_kms.h"
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#include "radeon.h"
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#include "atom.h"
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#define RADEON_WAIT_IDLE_TIMEOUT 200
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/**
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* radeon_driver_irq_handler_kms - irq handler for KMS
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*
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* @DRM_IRQ_ARGS: args
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*
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* This is the irq handler for the radeon KMS driver (all asics).
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* radeon_irq_process is a macro that points to the per-asic
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* irq handler callback.
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*/
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irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS)
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{
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struct drm_device *dev = (struct drm_device *) arg;
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struct radeon_device *rdev = dev->dev_private;
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return radeon_irq_process(rdev);
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}
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/*
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* Handle hotplug events outside the interrupt handler proper.
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*/
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/**
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* radeon_hotplug_work_func - display hotplug work handler
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*
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* @work: work struct
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*
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* This is the hot plug event work handler (all asics).
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* The work gets scheduled from the irq handler if there
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* was a hot plug interrupt. It walks the connector table
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* and calls the hotplug handler for each one, then sends
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* a drm hotplug event to alert userspace.
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*/
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static void radeon_hotplug_work_func(void *arg, int pending)
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{
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struct radeon_device *rdev = arg;
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struct drm_device *dev = rdev->ddev;
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struct drm_mode_config *mode_config = &dev->mode_config;
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struct drm_connector *connector;
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if (mode_config->num_connector) {
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list_for_each_entry(connector, &mode_config->connector_list, head)
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radeon_connector_hotplug(connector);
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}
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/* Just fire off a uevent and let userspace tell us what to do */
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drm_helper_hpd_irq_event(dev);
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}
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/**
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* radeon_driver_irq_preinstall_kms - drm irq preinstall callback
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*
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* @dev: drm dev pointer
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*
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* Gets the hw ready to enable irqs (all asics).
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* This function disables all interrupt sources on the GPU.
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*/
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void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
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{
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struct radeon_device *rdev = dev->dev_private;
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unsigned long irqflags;
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unsigned i;
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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/* Disable *all* interrupts */
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for (i = 0; i < RADEON_NUM_RINGS; i++)
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atomic_set(&rdev->irq.ring_int[i], 0);
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for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
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rdev->irq.hpd[i] = false;
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for (i = 0; i < RADEON_MAX_CRTCS; i++) {
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rdev->irq.crtc_vblank_int[i] = false;
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atomic_set(&rdev->irq.pflip[i], 0);
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rdev->irq.afmt[i] = false;
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}
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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/* Clear bits */
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radeon_irq_process(rdev);
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}
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/**
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* radeon_driver_irq_postinstall_kms - drm irq preinstall callback
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*
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* @dev: drm dev pointer
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*
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* Handles stuff to be done after enabling irqs (all asics).
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* Returns 0 on success.
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*/
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int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
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{
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dev->max_vblank_count = 0x001fffff;
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return 0;
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}
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/**
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* radeon_driver_irq_uninstall_kms - drm irq uninstall callback
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*
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* @dev: drm dev pointer
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*
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* This function disables all interrupt sources on the GPU (all asics).
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*/
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void radeon_driver_irq_uninstall_kms(struct drm_device *dev)
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{
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struct radeon_device *rdev = dev->dev_private;
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unsigned long irqflags;
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unsigned i;
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if (rdev == NULL) {
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return;
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}
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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/* Disable *all* interrupts */
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for (i = 0; i < RADEON_NUM_RINGS; i++)
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atomic_set(&rdev->irq.ring_int[i], 0);
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for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
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rdev->irq.hpd[i] = false;
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for (i = 0; i < RADEON_MAX_CRTCS; i++) {
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rdev->irq.crtc_vblank_int[i] = false;
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atomic_set(&rdev->irq.pflip[i], 0);
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rdev->irq.afmt[i] = false;
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}
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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}
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/**
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* radeon_msi_ok - asic specific msi checks
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*
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* @rdev: radeon device pointer
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*
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* Handles asic specific MSI checks to determine if
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* MSIs should be enabled on a particular chip (all asics).
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* Returns true if MSIs should be enabled, false if MSIs
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* should not be enabled.
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*/
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static bool radeon_msi_ok(struct radeon_device *rdev)
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{
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/* RV370/RV380 was first asic with MSI support */
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if (rdev->family < CHIP_RV380)
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return false;
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/* MSIs don't work on AGP */
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if (rdev->flags & RADEON_IS_AGP)
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return false;
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/* force MSI on */
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if (radeon_msi == 1)
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return true;
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else if (radeon_msi == 0)
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return false;
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/* Quirks */
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/* HP RS690 only seems to work with MSIs. */
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if ((rdev->ddev->pci_device == 0x791f) &&
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(rdev->ddev->pci_subvendor == 0x103c) &&
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(rdev->ddev->pci_subdevice == 0x30c2))
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return true;
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/* Dell RS690 only seems to work with MSIs. */
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if ((rdev->ddev->pci_device == 0x791f) &&
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(rdev->ddev->pci_subvendor == 0x1028) &&
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(rdev->ddev->pci_subdevice == 0x01fc))
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return true;
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/* Dell RS690 only seems to work with MSIs. */
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if ((rdev->ddev->pci_device == 0x791f) &&
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(rdev->ddev->pci_subvendor == 0x1028) &&
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(rdev->ddev->pci_subdevice == 0x01fd))
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return true;
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/* Gateway RS690 only seems to work with MSIs. */
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if ((rdev->ddev->pci_device == 0x791f) &&
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(rdev->ddev->pci_subvendor == 0x107b) &&
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(rdev->ddev->pci_subdevice == 0x0185))
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return true;
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/* try and enable MSIs by default on all RS690s */
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if (rdev->family == CHIP_RS690)
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return true;
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/* RV515 seems to have MSI issues where it loses
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* MSI rearms occasionally. This leads to lockups and freezes.
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* disable it by default.
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*/
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if (rdev->family == CHIP_RV515)
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return false;
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if (rdev->flags & RADEON_IS_IGP) {
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/* APUs work fine with MSIs */
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if (rdev->family >= CHIP_PALM)
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return true;
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/* lots of IGPs have problems with MSIs */
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return false;
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}
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return true;
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}
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/**
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* radeon_irq_kms_init - init driver interrupt info
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*
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* @rdev: radeon device pointer
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*
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* Sets up the work irq handlers, vblank init, MSIs, etc. (all asics).
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* Returns 0 for success, error for failure.
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*/
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int radeon_irq_kms_init(struct radeon_device *rdev)
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{
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int r = 0;
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TASK_INIT(&rdev->hotplug_work, 0, radeon_hotplug_work_func, rdev);
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TASK_INIT(&rdev->audio_work, 0, r600_audio_update_hdmi, rdev);
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DRM_SPININIT(&rdev->irq.lock, "drm__radeon_device__irq__lock");
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r = drm_vblank_init(rdev->ddev, rdev->num_crtc);
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if (r) {
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return r;
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}
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/* enable msi */
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rdev->msi_enabled = 0;
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if (radeon_msi_ok(rdev)) {
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int ret = drm_pci_enable_msi(rdev->ddev);
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if (!ret) {
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rdev->msi_enabled = 1;
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dev_info(rdev->dev, "radeon: using MSI.\n");
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}
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}
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rdev->irq.installed = true;
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r = drm_irq_install(rdev->ddev);
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if (r) {
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rdev->irq.installed = false;
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return r;
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}
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DRM_INFO("radeon: irq initialized.\n");
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return 0;
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}
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/**
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* radeon_irq_kms_fini - tear down driver interrrupt info
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*
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* @rdev: radeon device pointer
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*
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* Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics).
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*/
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void radeon_irq_kms_fini(struct radeon_device *rdev)
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{
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drm_vblank_cleanup(rdev->ddev);
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if (rdev->irq.installed) {
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drm_irq_uninstall(rdev->ddev);
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rdev->irq.installed = false;
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if (rdev->msi_enabled)
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drm_pci_disable_msi(rdev->ddev);
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}
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taskqueue_drain(rdev->tq, &rdev->hotplug_work);
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}
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/**
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* radeon_irq_kms_sw_irq_get - enable software interrupt
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*
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* @rdev: radeon device pointer
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* @ring: ring whose interrupt you want to enable
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*
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* Enables the software interrupt for a specific ring (all asics).
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* The software interrupt is generally used to signal a fence on
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* a particular ring.
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*/
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void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev, int ring)
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{
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unsigned long irqflags;
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if (!rdev->ddev->irq_enabled)
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return;
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if (atomic_inc_return(&rdev->irq.ring_int[ring]) == 1) {
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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}
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}
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/**
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* radeon_irq_kms_sw_irq_put - disable software interrupt
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*
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* @rdev: radeon device pointer
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* @ring: ring whose interrupt you want to disable
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*
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* Disables the software interrupt for a specific ring (all asics).
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* The software interrupt is generally used to signal a fence on
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* a particular ring.
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*/
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void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev, int ring)
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{
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unsigned long irqflags;
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if (!rdev->ddev->irq_enabled)
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return;
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if (atomic_dec_and_test(&rdev->irq.ring_int[ring])) {
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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}
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}
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/**
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* radeon_irq_kms_pflip_irq_get - enable pageflip interrupt
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*
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* @rdev: radeon device pointer
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* @crtc: crtc whose interrupt you want to enable
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*
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* Enables the pageflip interrupt for a specific crtc (all asics).
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* For pageflips we use the vblank interrupt source.
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*/
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void radeon_irq_kms_pflip_irq_get(struct radeon_device *rdev, int crtc)
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{
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unsigned long irqflags;
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if (crtc < 0 || crtc >= rdev->num_crtc)
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return;
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if (!rdev->ddev->irq_enabled)
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return;
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if (atomic_inc_return(&rdev->irq.pflip[crtc]) == 1) {
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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}
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}
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/**
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* radeon_irq_kms_pflip_irq_put - disable pageflip interrupt
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*
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* @rdev: radeon device pointer
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* @crtc: crtc whose interrupt you want to disable
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*
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* Disables the pageflip interrupt for a specific crtc (all asics).
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* For pageflips we use the vblank interrupt source.
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*/
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void radeon_irq_kms_pflip_irq_put(struct radeon_device *rdev, int crtc)
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{
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unsigned long irqflags;
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if (crtc < 0 || crtc >= rdev->num_crtc)
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return;
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if (!rdev->ddev->irq_enabled)
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return;
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if (atomic_dec_and_test(&rdev->irq.pflip[crtc])) {
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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}
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}
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/**
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* radeon_irq_kms_enable_afmt - enable audio format change interrupt
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*
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* @rdev: radeon device pointer
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* @block: afmt block whose interrupt you want to enable
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*
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* Enables the afmt change interrupt for a specific afmt block (all asics).
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*/
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void radeon_irq_kms_enable_afmt(struct radeon_device *rdev, int block)
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{
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unsigned long irqflags;
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if (!rdev->ddev->irq_enabled)
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return;
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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rdev->irq.afmt[block] = true;
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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}
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/**
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* radeon_irq_kms_disable_afmt - disable audio format change interrupt
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*
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* @rdev: radeon device pointer
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* @block: afmt block whose interrupt you want to disable
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*
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* Disables the afmt change interrupt for a specific afmt block (all asics).
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*/
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void radeon_irq_kms_disable_afmt(struct radeon_device *rdev, int block)
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{
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unsigned long irqflags;
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if (!rdev->ddev->irq_enabled)
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return;
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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rdev->irq.afmt[block] = false;
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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}
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/**
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* radeon_irq_kms_enable_hpd - enable hotplug detect interrupt
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*
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* @rdev: radeon device pointer
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* @hpd_mask: mask of hpd pins you want to enable.
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*
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* Enables the hotplug detect interrupt for a specific hpd pin (all asics).
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*/
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void radeon_irq_kms_enable_hpd(struct radeon_device *rdev, unsigned hpd_mask)
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{
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unsigned long irqflags;
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int i;
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if (!rdev->ddev->irq_enabled)
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return;
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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for (i = 0; i < RADEON_MAX_HPD_PINS; ++i)
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rdev->irq.hpd[i] |= !!(hpd_mask & (1 << i));
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radeon_irq_set(rdev);
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DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
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}
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/**
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* radeon_irq_kms_disable_hpd - disable hotplug detect interrupt
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*
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* @rdev: radeon device pointer
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* @hpd_mask: mask of hpd pins you want to disable.
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*
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* Disables the hotplug detect interrupt for a specific hpd pin (all asics).
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*/
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void radeon_irq_kms_disable_hpd(struct radeon_device *rdev, unsigned hpd_mask)
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{
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unsigned long irqflags;
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int i;
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if (!rdev->ddev->irq_enabled)
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return;
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DRM_SPINLOCK_IRQSAVE(&rdev->irq.lock, irqflags);
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for (i = 0; i < RADEON_MAX_HPD_PINS; ++i)
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rdev->irq.hpd[i] &= !(hpd_mask & (1 << i));
|
|
radeon_irq_set(rdev);
|
|
DRM_SPINUNLOCK_IRQRESTORE(&rdev->irq.lock, irqflags);
|
|
}
|
|
|