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2008-06-22NV50: A few minor added safeties + cleanup.Maarten Maathuis
2008-06-22Undo something i didn't want to change.Maarten Maathuis
- I made it consistent with recent kernel fb code (maybe this is older bugged code?) - Still i don't use this and i should leave it to others.
2008-06-22NV50: Initial import of kernel modesetting.Maarten Maathuis
2008-06-21[intel] Use IMR instead of IER to pend interrupts during ISRKeith Packard
Noting that the interrupt mask register was more reliable than the interrupt enable register for managing interrupts in user_irq_on/user_irq_off, this patch replaces the remaining IER frobbing with IMR instead. The test which exposes IER related failures is: $ glxgears & glxgears & glxgears (reposition the glxgears windows away from the upper left corner) $ while :; do x11perf -rect100 -reps 800 -repeat 1; sleep 1; done & $ while :; do runoa; runet; done &
2008-06-21[intel-gem] Add /proc/dri/*/i915_gem_interruptKeith Packard
This tracks most of the interrupt-related status, including the interrupt registers in the chip and the sequence number variables.
2008-06-21[intel] Count received interruptsKeith Packard
Another patch adds this to a /proc/dri file for debugging and monitoring.
2008-06-21[intel-gem] Remove unused variable.Keith Packard
2008-06-20[intel-gem] Use polling in i915_gem_idle instead of interrupts.Keith Packard
While waiting for the hardware to idle on leavevt or lastclose, poll for the sync sequence number instead of waiting for an interrupt. This allows the code to bail if the hardware hangs for some reason. Also, this avoids issues with signals as the exisiting wait function is interruptible.
2008-06-20[intel-gem] Add intel-specific /proc entries to help monitor gem operationKeith Packard
This adds gem_active, gem_flushing, gem_inactive, gem_request and gem_seqno entries to monitor gem operation and help debug issues.
2008-06-20Add device-specific proc_init and proc_cleanup hooksKeith Packard
This allows device drivers to add proc files
2008-06-20[intel-gem] Use shmem_getpage instead of find_or_create_pageKeith Packard
find_or_create_page doesn't quite set up pages correctly; any newly created pages aren't hooked into the shmem object quite right; user space mmaps of those pages end up mapping pages full of zeros which then get written to the real pages inappropriately. This patch requires that the kernel export shmem_getpage.
2008-06-20[intel-gem] Add DRM_IOCTL_I915_GEM_SW_FINISH to flag CPU writesKeith Packard
When a software fallback has completed, usermode must notify the kernel so that any scanout buffers can be synchronized. This ioctl should be called whenever a fallback completes to flush CPU and chipset caches.
2008-06-18i915: add blanking support to intelfbJesse Barnes
Got tired of not having my LCD actually turn off when I left the machine at the console.
2008-06-18i915: cleanup PCI state before disabling MSIJesse Barnes
Core MSI code will BUG() if an interrupt handler is still registered when pci_disable_msi() is called.
2008-06-18Merge commit 'origin/drm-gem' into modesetting-gemJesse Barnes
Lots of conflicts, seems to load ok, but I'm sure some bugs snuck in. Conflicts: linux-core/drmP.h linux-core/drm_lock.c linux-core/i915_gem.c shared-core/drm.h shared-core/i915_dma.c shared-core/i915_drv.h shared-core/i915_irq.c
2008-06-18i915: use WC mapping for framebuffer screen_baseJesse Barnes
2008-06-18Merge branch 'modesetting-101' into modesetting-gemJesse Barnes
2008-06-18i915: switch back to fbcon on panicJesse Barnes
Normally when X is running, panic messages will be invisible and the machine will just appear to hard hang. This patch adds support for switching back to the fbcon framebuffer on panic (through the use of a panic notifier registration) so we can see what happened. Note that in order to be really useful, X will have to run its VT in something other than KD_GRAPHICS mode. Also, not all kernel errors result in panics, some go through BUG() which may trigger another type of event, not resulting in a switch.
2008-06-16[intel] Quirk away MSI support on 945G/GM.Eric Anholt
The PCI caps register reports MSI support even though it isn't really there.
2008-06-16[linux] Use the device's irq for handler setup instead of stale dev->irq.Eric Anholt
This fixes registration when MSI is set up after the stub function fills in dev->irq. Otherwise /proc/interrupts would report attachment to the fasteoi interrupt. dev->irq is still exposed (and updated at IRQ setup) for the drivers that use it for whatever reason.
2008-06-13[intel-gem] Execute MI_FLUSH in leavevt_ioctlKeith Packard
In leavevt_ioctl, queue an MI_FLUSH and then block waiting for it to complete. This will empty the active and flushing lists. That leaves only the inactive list to evict.
2008-06-13[intel-gem] inactive list may contain objects in CPU write domainKeith Packard
Pin/unpin need to know whether to remove/add objects from the inactive list, inactive objects cannot be in any GPU write domain as those would be on the flushing list instead. However, inactive objects may be in the CPU write domain.
2008-06-13[intel-gem] BUG_ON active objects in gem_object_unbindKeith Packard
Now that gem_object_unbind waits for rendering to complete, objects should not be active when they are being pulled from the GTT. BUG_ON if this is broken.
2008-06-13[intel-gem] Debugging -- verify inactive list invariantsKeith Packard
Inactive list elements may not be pinned, active or have non-CPU write domains.
2008-06-13[intel-gem] whitespace fixesKeith Packard
2008-06-13[intel-gem] show total GTT space in /proc/dri/*/gem_objectsKeith Packard
2008-06-13[intel-gem] Wait for rendering to complete before unbinding.Keith Packard
Moving to the CPU domain doesn't ensure that rendering is finished, the buffer may still be in use as a texture or other data source.
2008-06-13[libdrm] Restart all ioctls on signal receiptKeith Packard
Receiving a signal should be ignored by the library, so just restart any ioctl which returns EINTR or EAGAIN.
2008-06-13[intel-gem] add gtt and pin counts to /proc/dri/*/gem_objectsKeith Packard
Not quite portable, but these are useful for intel. Some more general mechanism could be done...
2008-06-13[intel-gem] Left the last exec buffer pinned. oops.Keith Packard
Loop end variable 'pinned' was set one too low.
2008-06-13[intel-gem] Pin objects during execbufferKeith Packard
Pinning the objects avoids accidentally evicting them while binding other objects.
2008-06-13[intel-gem] throttle based on frames rather than time. Reduces jitter.Keith Packard
Record the last execbuffer sequence for each client. Record that sequence in the throttle ioctl as the 'throttle sequence'. Wait for the last throttle sequence in the throttle ioctl.
2008-06-13[intel-gem] evict_something was failing when wait_request freed objectsKeith Packard
When i915_wait_request clears object from the active list, it may end up freeing them and not moving them to the inactive list. This ends up unbinding objects from the GTT without there ever being new objects visible to i915_gem_evict_something on the inactive list. As the only success condition required the presence of objects on the inactive list, this would falsely assume that no GTT space had been made available, and end up returning -ENOMEM to the application.
2008-06-13[intel] Enable MSI for i915 IRQKeith Packard
2008-06-13[intel] Restructure irq to pend all work until after iir write.Keith Packard
The interrupt identity register must be writen before any work occurs lest we drop an interrupt on the floor. This patch just shuffles code around to make sure that IIR is written as early as possible.
2008-06-13[intel-gem] Use a delayed_work instead of a timer + work_structKeith Packard
We want request retirement to occur about once a second when the request queue is non-empty. This was done with a timer that queued a work_struct, using a delayed_work instead makes a lot more sense.
2008-06-13[intel-gem] Reorder i915_add_request to schedule work lastKeith Packard
i915_add_request was calling schedule_delayed_work before adding the request to the list; it makes more sense to do that last.
2008-06-13Use /bin/pwd instead of trusting shell built-inKeith Packard
2008-06-13Fix i915_wait_irq in the presence of interrupt masking.Eric Anholt
In the short-circuit code for the breadcrumb already being new enough, we need to update the sarea_priv copy of the breadcrumb just as if we had waited. Otherwise userland error checking will notice that we returned too early based on its wrong information, and call wait_irq again (leading to spinning until someone else comes along and updates the sarea_priv). This bug was hidden when we had interrupt masking disabled, such as in master, since the interrupt handler would update sarea_priv.
2008-06-13[gem] Catch -EINTR from blocking ioctls and restart them.Eric Anholt
Thanks to Thomas Hellstrom for catching the issue, no thanks to the kernel developer who authoritatively told me that they would get restarted on their own.
2008-06-13[gem] Remove the interrupt handler for retiring requests.Eric Anholt
This was insufficient once we started masking interrupts to only when someone was waiting for them (and would thus retire requests themselves). It was replaced by the retire_timer.
2008-06-13[gem] Don't require the lock in execbuf now that it's not needed for the ring.Eric Anholt
2008-06-12Bump libdrm version to 2.4.0.Eric Anholt
We need a version to depend on from the other components that require GEM and the bufmgr code. Some interfaces will be removed before the 2.4.0 release.
2008-06-12Don't clear USER_INTERRUPT if we're not handling it.Eric Anholt
This fixes a regression from commit d434b64f6a760d85295e32298a9a1f3624ee1b69 which could cause us to fail to wake up for user interrupts if we lost a race.
2008-06-11[gem] Remove the drm_client_lock_take in set_domain.Eric Anholt
We no longer need to use it to protect against shared ringbuffer access.
2008-06-11Use GEM in modesettingJesse Barnes
Use GEM for ring buffer setup and framebuffer allocation. This means reworking the hardware status page stuff a bit (just use the basic range allocator for vram for now) and #ifdef'ing out the TTM & DRI2 code. Works well enough to load/unload several times and display fbcon on my T61 (though there's still some unexplained console corruption).
2008-06-11Move the renaming of mm.c symbols to #defines in the header.Eric Anholt
This reduces the diff from Mesa and reduces the illegibility of what I did.
2008-06-11[gem] Another round of cleanups from checkpatch.plEric Anholt
2008-06-11[gem] Move potentially device-specific ioctls to the intel driver.Eric Anholt
This is the create (may want location flags), pread/pwrite/mmap (performance tuning hints), and set_domain (will 32 bits be enough for everyone?) ioctls. Left in the generic set are just flink/open/close. The 2D driver must be updated for this change, and API but not ABI is broken for 3D. The driver version is bumped to mark this.
2008-06-11Remove override of drm module list in preparation for merge.Eric Anholt