forked from Minki/linux
9b2e077c42
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIVAwUAUGsfSBOxKuMESys7AQIQug/+LyViiXFmCSlM+lCGkp64/BfUvy0QHqN4 K/dMvbZKOQbvmgps/xj8G+6diDzeO4hz8e1I3c/SEZ3M9TTz/Ppv1slfET9uUZ4X aLLHKqXihsxEOslw7mgp91KTd1Nr+e41f/5hr3j5Ap1HQB4yJa2mmj3reb48VfjD jmXo/dID66c2ExaVO7C8yyZXWgMGTfiy27qmEnMTxW7xQPt1oYsV2Bq0PCC/zEcq JgnwMatDVMy9en9wuEVMNelImE+XLm1T3XpLHL2WkV2JWSai98TcvGZnNKIxpFqu PueHWWCs5F5bZfn4bf6QOEstRTW76NL2qFNYrBPi0Zuq8Pm53ucnnzJUY8JFPPoR kXYmv8K73Jb10eHFuc3X4UyzvnhmJ7y3kG3jx7WoJVkW1KPgEFNmvMHkLyHgPZOU nT1tZiO0QHF4zi0JWMfK+7aeEY7EKfqRSce0F3Jw91vaIlEOIqgMgVJ1Y/nMhu3s 92mpg8JDoAcgCghok4m4Pc1qO06Fe8Iw5Qap5KMdPutp5Br2ebLL5NrwdAE8LNpR 7826r9RTMhyVRgNJ71JMFDY1IBeLeY0bxipN8dh6VYqMiKgClUeNwv7/tIgI4YS7 acQ+GdcsgTtg5qx3xwX5N2TSJVvdwnXdnWhAw7wN48tbzH8LvMV61Pq8Ytc7iK3M cAMgkbxdZRk= =VtEQ -----END PGP SIGNATURE----- Merge tag 'uapi-prep-20121002' of git://git.infradead.org/users/dhowells/linux-headers Pull preparatory patches for user API disintegration from David Howells: "The patches herein prepare for the extraction of the Userspace API bits from the various header files named in the Kbuild files. New subdirectories are created under either include/uapi/ or arch/x/include/uapi/ that correspond to the subdirectory containing that file under include/ or arch/x/include/. The new subdirs under the uapi/ directory are populated with Kbuild files that mostly do nothing at this time. Further patches will disintegrate the headers in each original directory and fill in the Kbuild files as they do it. These patches also: (1) fix up #inclusions of "foo.h" rather than <foo.h>. (2) Remove some redundant #includes from the DRM code. (3) Make the kernel build infrastructure handle Kbuild files both in the old places and the new UAPI place that both specify headers to be exported. (4) Fix some kernel tools that #include kernel headers during their build. I have compile tested this with allyesconfig against x86_64, allmodconfig against i386 and a scattering of additional defconfigs of other arches. Prepared for main script Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> Acked-by: H. Peter Anvin <hpa@zytor.com>" * tag 'uapi-prep-20121002' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: Plumb the UAPI Kbuilds into the user header installation and checking UAPI: x86: Differentiate the generated UAPI and internal headers UAPI: Remove the objhdr-y export list UAPI: Move linux/version.h UAPI: Set up uapi/asm/Kbuild.asm UAPI: x86: Fix insn_sanity build failure after UAPI split UAPI: x86: Fix the test_get_len tool UAPI: (Scripted) Set up UAPI Kbuild files UAPI: Partition the header include path sets and add uapi/ header directories UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ UAPI: (Scripted) Remove redundant DRM UAPI header #inclusions from drivers/gpu/. UAPI: Refer to the DRM UAPI headers with <...> and from certain headers only
491 lines
13 KiB
C
491 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 <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/radeon_drm.h>
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#include "radeon_reg.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(struct work_struct *work)
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{
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struct radeon_device *rdev = container_of(work, struct radeon_device,
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hotplug_work);
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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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spin_lock_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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rdev->irq.gui_idle = false;
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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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spin_unlock_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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spin_lock_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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rdev->irq.gui_idle = false;
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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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spin_unlock_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->pdev->device == 0x791f) &&
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(rdev->pdev->subsystem_vendor == 0x103c) &&
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(rdev->pdev->subsystem_device == 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->pdev->device == 0x791f) &&
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(rdev->pdev->subsystem_vendor == 0x1028) &&
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(rdev->pdev->subsystem_device == 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->pdev->device == 0x791f) &&
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(rdev->pdev->subsystem_vendor == 0x1028) &&
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(rdev->pdev->subsystem_device == 0x01fd))
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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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INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
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INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi);
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spin_lock_init(&rdev->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 = pci_enable_msi(rdev->pdev);
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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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pci_disable_msi(rdev->pdev);
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}
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flush_work(&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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spin_lock_irqsave(&rdev->irq.lock, irqflags);
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radeon_irq_set(rdev);
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spin_unlock_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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spin_lock_irqsave(&rdev->irq.lock, irqflags);
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radeon_irq_set(rdev);
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spin_unlock_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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spin_lock_irqsave(&rdev->irq.lock, irqflags);
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radeon_irq_set(rdev);
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spin_unlock_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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spin_lock_irqsave(&rdev->irq.lock, irqflags);
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radeon_irq_set(rdev);
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spin_unlock_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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spin_lock_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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spin_unlock_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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spin_lock_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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spin_unlock_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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*
|
|
* @rdev: radeon device pointer
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|
* @hpd_mask: mask of hpd pins you want to enable.
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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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|
{
|
|
unsigned long irqflags;
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|
int i;
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|
|
|
spin_lock_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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|
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
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|
}
|
|
|
|
/**
|
|
* radeon_irq_kms_disable_hpd - disable hotplug detect interrupt
|
|
*
|
|
* @rdev: radeon device pointer
|
|
* @hpd_mask: mask of hpd pins you want to disable.
|
|
*
|
|
* Disables the hotplug detect interrupt for a specific hpd pin (all asics).
|
|
*/
|
|
void radeon_irq_kms_disable_hpd(struct radeon_device *rdev, unsigned hpd_mask)
|
|
{
|
|
unsigned long irqflags;
|
|
int i;
|
|
|
|
spin_lock_irqsave(&rdev->irq.lock, irqflags);
|
|
for (i = 0; i < RADEON_MAX_HPD_PINS; ++i)
|
|
rdev->irq.hpd[i] &= !(hpd_mask & (1 << i));
|
|
radeon_irq_set(rdev);
|
|
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
|
|
}
|
|
|
|
/**
|
|
* radeon_irq_kms_wait_gui_idle - waits for drawing engine to be idle
|
|
*
|
|
* @rdev: radeon device pointer
|
|
*
|
|
* Enabled the GUI idle interrupt and waits for it to fire (r6xx+).
|
|
* This is currently used to make sure the 3D engine is idle for power
|
|
* management, but should be replaces with proper fence waits.
|
|
* GUI idle interrupts don't work very well on pre-r6xx hw and it also
|
|
* does not take into account other aspects of the chip that may be busy.
|
|
* DO NOT USE GOING FORWARD.
|
|
*/
|
|
int radeon_irq_kms_wait_gui_idle(struct radeon_device *rdev)
|
|
{
|
|
unsigned long irqflags;
|
|
int r;
|
|
|
|
spin_lock_irqsave(&rdev->irq.lock, irqflags);
|
|
rdev->irq.gui_idle = true;
|
|
radeon_irq_set(rdev);
|
|
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
|
|
|
|
r = wait_event_timeout(rdev->irq.idle_queue, radeon_gui_idle(rdev),
|
|
msecs_to_jiffies(RADEON_WAIT_IDLE_TIMEOUT));
|
|
|
|
spin_lock_irqsave(&rdev->irq.lock, irqflags);
|
|
rdev->irq.gui_idle = false;
|
|
radeon_irq_set(rdev);
|
|
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
|
|
return r;
|
|
}
|