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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c
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2022-03-11drm/vmwgfx: Implement MSI/MSI-X support for IRQsZack Rusin1-6/+49
SVGAv3 deprecates legacy interrupts and adds support for MSI/MSI-X. With MSI the driver visible side remains largely unchanged but with MSI-X each interrupt gets delivered on its own vector. Add support for MSI/MSI-X while preserving the old functionality for SVGAv2. Code between the SVGAv2 and SVGAv3 is exactly the same, only the number of available vectors changes, in particular between legacy and MSI-X interrupts. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Martin Krastev <krastevm@vmware.com> Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220307162412.1183049-1-zack@kde.org
2022-03-11drm/vmwgfx: Fix fencing on SVGAv3Zack Rusin1-8/+18
Port of the vmwgfx to SVGAv3 lacked support for fencing. SVGAv3 removed FIFO's and replaced them with command buffers and extra registers. The initial version of SVGAv3 lacked support for most advanced features (e.g. 3D) which made fences unnecessary. That is no longer the case, especially as 3D support is being turned on. Switch from FIFO commands and capabilities to command buffers and extra registers to enable fences on SVGAv3. Fixes: 2cd80dbd3551 ("drm/vmwgfx: Add basic support for SVGA3") Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Martin Krastev <krastevm@vmware.com> Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220302152426.885214-5-zack@kde.org
2021-07-08drm/vmwgfx: Convert to Linux IRQ interfacesThomas Zimmermann1-11/+5
Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers don't benefit from using it. Vmwgfx already uses Linux IRQ functions. All that's left to replace is the reference to struct drm_device.irq. Use irq value of struct pci_dev instead. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Zack Rusin <zackr@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210706072253.6844-1-tzimmermann@suse.de
2021-06-29drm/vmwgfx: Don't set struct drm_device.irq_enabledThomas Zimmermann1-8/+0
The field drm_device.irq_enabled is only used by legacy drivers with userspace modesetting. Don't set it in vmxgfx. All usage of the field within vmwgfx can safely be removed. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210625082222.3845-26-tzimmermann@suse.de
2021-05-11drm/vmwgfx: Add basic support for SVGA3Zack Rusin1-63/+14
SVGA3 is the next version of our PCI device. Some of the changes include using MMIO for register accesses instead of ioports, deprecating the FIFO MMIO and removing a lot of the old and legacy functionality. SVGA3 doesn't support guest backed objects right now so everything except 3D is working. v2: Fixes all the static analyzer warnings Signed-off-by: Zack Rusin <zackr@vmware.com> Cc: Martin Krastev <krastevm@vmware.com> Reviewed-by: Roland Scheidegger <sroland@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210505191007.305872-1-zackr@vmware.com
2021-01-14drm/vmwgfx: Remove the throttling codeZack Rusin1-1/+0
Throttling was used before fencing to implement early vsync support in the xorg state tracker a long time ago. The xorg state tracker has been removed years ago and no one else has ever used throttling. It's time to remove this code, it hasn't been used or tested in years. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Martin Krastev <krastevm@vmware.com> Reviewed-by: Roland Scheidegger <sroland@vmware.com> Link: https://patchwork.freedesktop.org/patch/414042/?series=85516&rev=2
2021-01-14drm/vmwgfx: Cleanup fifo mmio handlingZack Rusin1-6/+3
Going forward the svga device might reuse mmio for general register accesses, in order to prepare for that we need to cleanup our naming and handling of fifo specific mmio reads and writes. As part of this work lets switch to managed mapping of the fifo mmio to make the error handling cleaner. Signed-off-by: Zack Rusin <zackr@vmware.com> Reviewed-by: Martin Krastev <krastevm@vmware.com> Reviewed-by: Roland Scheidegger <sroland@vmware.com> Link: https://patchwork.freedesktop.org/patch/414045/?series=85516&rev=2
2019-08-15drm/vmwgfx: drop reminaing users of drmP.hSam Ravnborg1-1/+2
Drop use of the deprecated drmP.h file from the remaining files. In several cases the drmP.h include could be removed without furter fixes. Other files required a few header files to be added. In all files divided includes files in blocks and sort them. v2: - fix warning in i386 build wiht HIGHMEM disabled Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reported-by: kbuild test robot <lkp@intel.com> [warning in i386 build] Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Reviewed-by: Deepak Rawat <drawat@vmware.com> Signed-off-by: Deepak Rawat <drawat@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
2018-06-29drm/vmwgfx: add SPDX idenitifier and clarify licenseDirk Hohndel (VMware)1-2/+2
This is dual licensed under GPL-2.0 or MIT. vmwgfx_msg.h is the odd one out that is GPL-2.0+ or MIT. Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Dirk Hohndel (VMware) <dirk@hohndel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180506231626.115996-9-dirk@hohndel.org
2017-08-28drm/vmwgfx: Move irq bottom half processing to threadsThomas Hellstrom1-11/+57
This gets rid of the irq bottom half tasklets and instead performs the work needed in process context. We also convert irq-disabling spinlocks to ordinary spinlocks. This should decrease system latency for other system components, like sound for example but has the potential to increase latency for processes that wait on the GPU. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2017-08-28drm/vmwgfx: Don't use drm_irq_[un]installThomas Hellstrom1-10/+35
We're not allowed to change the upstream version of the drm_irq_install function to be able to incorporate threaded irqs. So roll our own irq install- and uninstall functions instead of relying on the drm core ones. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
2015-11-06drm/vmwgfx: Relax irq locking somewhatThomas Hellstrom1-74/+30
Relax locking with the goal of reducing the number of locking cycles and time spent with irqs disabled. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2015-11-02drm/vmwgfx: Replace iowrite/ioread with volatile memory accessesThomas Hellstrom1-4/+5
Now that we use memremap instead of ioremap, Use WRITE_ONCE / READ_ONCE instead of iowrite / ioread. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2015-08-12drm/vmwgfx: Fix copyright headersSinclair Yeh1-1/+1
Updating and fixing copyright headers. Bump version minor to signal vgpu10 support. Signed-off-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
2015-08-05drm/vmwgfx: Kill a bunch of sparse warningsThomas Hellstrom1-2/+2
We're giving up all attempts to keep cpu- and device byte ordering separate. This silences sparse when compiled using make C=2 CF="-D__CHECK_ENDIAN__" Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
2015-08-05drm/vmwgfx: Add command buffer support v3Thomas Hellstrom1-1/+40
Add command buffer support. Currently we don't implement preemption or fancy error handling. Tested with a couple of mesa-demos, compiz/unity and viewperf maya-03. v2: - Synchronize with pending work at command buffer manager takedown. - Add an interface to flush the current command buffer for latency-critical command batches and apply it to framebuffer dirtying. v3: - Minor fixes of definitions and typos to address reviews. - Removed new or moved branch predictor hints. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2015-01-19drm/vmwgfx: Replace the hw mutex with a hw spinlockThomas Hellstrom1-16/+9
Fixes a case where we call vmw_fifo_idle() from within a wait function with task state !TASK_RUNNING, which is illegal. In addition, make the locking fine-grained, so that it is performed once for every read- and write operation. This is of course more costly, but we don't perform much register access in the timing critical paths anyway. Instead we have the extra benefit of being sure that we don't forget the hw lock around register accesses. I think currently the kms code was quite buggy w r t this. This fixes Red Hat Bugzilla Bug 1180796 Cc: stable@vger.kernel.org Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2013-12-18drm: Kill DRM_IRQ_ARGSDaniel Vetter1-1/+1
I've killed them a long time ago in drm/i915, let's get rid of this remnant of shared drm core days for good. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-10-02UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/David Howells1-1/+1
Convert #include "..." to #include <path/...> in drivers/gpu/. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2011-10-10vmwgfx: Add fence eventsThomas Hellstrom1-18/+49
Add a way to send DRM events down the gpu fifo by attaching them to fence objects. This may be useful for Xserver swapbuffer throttling and page-flip done notifications. Bump version to 2.2 to signal the availability of the FENCE_EVENT ioctl. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-09-06vmwgfx: Implement fence objectsThomas Hellstrom1-26/+9
Will be needed for queries and drm event-driven throttling. As a benefit, they help avoid stale user-space fence handles. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-09-06vmwgfx: Make vmw_wait_seqno a bit more readableThomas Hellstrom1-22/+35
Break out on-demand enabling and disabling of fence irqs to make the function more readable. Also make dev_priv->fence_queue_waiters an int instead of an atomic_t since we only manipulate it with dev_priv->hw_mutex held. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-09-06vmwgfx: Fix confusion caused by using "fence" in various placesThomas Hellstrom1-28/+28
This is needed before we introduce the fence objects. Otherwise this will be even more confusing. The plan is to use the following: seqno: A 32-bit sequence number that may be passed in the fifo. marker: Objects, carrying a seqno, that track fifo submission time. They are used for fifo lag based throttling. fence objects: Kernel space objects, possibly accessible from user-space and carrying a 32-bit seqno together with signaled status. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-06-01drm/vmwgfx: Add kernel throttling support. Bump minor.Thomas Hellstrom1-3/+14
The throttle_us member in the execbuf argument is now honored. If the member is 0, no waiting for lag will occur, which guarantees backwards compatibility with well-behaved clients. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-02-11drm/vmwgfx: Fix a circular locking dependency bug.Thomas Hellstrom1-10/+3
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-23drm/vmwgfx: Return -ERESTARTSYS when interrupted by a signal.Thomas Hellstrom1-4/+2
Fixes for TTM API change. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-12-15drm/vmwgfx: Add DRM driver for VMware Virtual GPUJakob Bornecrantz1-0/+295
This commit adds the vmwgfx driver for the VWware Virtual GPU aka SVGA. The driver is under staging the same as Nouveau and Radeon KMS. Hopefully the 2D ioctls are bug free and don't need changing, so that part of the API should be stable. But there there is a pretty big chance that the 3D API will change in the future. Signed-off-by: Thomas Hellström <thellstrom@vmware.com> Signed-off-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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