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The data is now in kernel space, copied in/out as appropriate according to the
This results in DRM_COPY_{TO,FROM}_USER going away, and error paths to deal
with those failures. This also means that XFree86 4.2.0 support for i810 DRM
is lost.
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As a fallout, replace filp storage with file_priv storage for "unique
identifier of a client" all over the DRM. There is a 1:1 mapping, so this
should be a noop. This could be a minor performance improvement, as everything
on Linux dereferenced filp to get file_priv anyway, while only the mmap ioctls
went the other direction.
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This was used to make all ioctl handlers return -errno on linux and errno on
*BSD. Instead, just return -errno in shared code, and flip sign on return from
shared code to *BSD code.
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With this, all modules build again.
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ioctl wrapper
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Tested on r200/r300. i915 updates still remain to be done.
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The current version didn't build on BSD, where the new functionality isn't used
yet anyway. Whoever changes that will hopefully be able to make the OSes share
this file as well.
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Actually make the existing ioctls for adding and removing drawables do
something useful, and add another ioctl for the X server to update drawable
information. The only kind of drawable information tracked so far is cliprects.
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This helps us unbreak FreeBSD DRM from the 965 changes.
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Sort the merged file, remove the redundant explicit .ko lines and add
some generated symlinks.
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PR: kern/97056 Submitted by: Stanislav Sedov <ssedov@mbsd.msk.ru>
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chasing a NULL pointer at the first 3d app invocation.
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refusal to inline functions that (in some cases, at least) aren't that
large.
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attachment. Make our mga_drv.c use them, while I'm here.
Submitted by: Jonathan Fosburgh <jonathan@fosburgh.org>
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changes.
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when it really wanted to live in drm_device_is_agp.
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Submitted by: Alexey Popov <llp@iteranet.com>
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DRM_DEBUG kernel option. It remains controlled by hw.dri.*.debug no
matter what.
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driver as Linux uses, and actually use the driver's device_is_agp if
available (hopefully fixing i915).
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mapped.
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drm_get_resource_* resource allocation a little racy, but they're
getting called at either X Server startup or driver load, so it's
serialized anyway.
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drm_mtrr_{add,del} for handling the MTRR setup. Still has a LOR issue
with DRM_VERIFYAREA_READ/DRM_COPY_FROM_USER_UNCHECKED in savage_bci.c
-- this won't work with the fine-grained locking in use, and just doing
a single copyin to a temporary will probably work fine. Also note that
the module leaks approximately 4 kb on unload.
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uninit to unload time rather than lastclose.
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up a good bit, I think. Also, remove the agp_uninit() function which
has lain around as a noop for years now. The FreeBSD DRM is now all
compiling, with the exception of via. One known sleeping-with-lock-held
issue remains.
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radeon_cp.c to use a drm_local_map_t-type mapping (drm_core_ioremap
rather than drm_ioremap), which contains private device mapping
information on BSD. I also changed the ati_pcigart interface to use
"void *" for pointers to kva rather than "unsigned long". While PCIGART
support appears to be broken on FreeBSD currently, I think this is not
new, and BusType PCI remains working on my r100 in Linux.
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firstopen, by making drm_addmap require the drm device lock to be held.
Also, make matching of kernel maps match linux by requiring shm matches
to have the contains_lock flag set if the offset doesn't match.
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up is pcigart.
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- Comment out the "is this mapping/bufs in allocated AGP" bits in BSD
because they break mga (which uses AGP allocation that doesn't track
entries). It's not a security issue when we still have the related
ioctls marked root-only.
- Apply some power-of-two alignment restrictions to hopefully avoid some
panicing in bad cases of drm_pci_alloc() on FreeBSD.
- Add verbosity to some error handling that I found useful while debugging.
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allocate the resource RF_ACTIVE, pull out the appropriate value, and
return it. However, allocating large framebuffers RF_ACTIVE would run
the system out of KVA, and this also left open the possibility of the
resource getting moved after getting the offset. Instead, when either
of these are called, allocate the resource if it isn't allocated
already (non-RF_ACTIVE) and store it in the DRM device, to be cleaned
up on lastclose.
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turned on, i.e. in a kernel build.
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DMA lock in a non-DMA driver, as it will be uninitialized.
Submitted by: [1] jkim (minor changes by me)
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me to match other drivers and avoid ifdeffing. The linux via_drv.c will
be moved from shared-core to linux-core soon by repocopy.
Submitted by: Jake Burkholder <jake@FreeBSD.org> Tested by: unichrome
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cares about root on the BSD side, but should be secure.
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understandable: preinit -> load postinit -> (removed) presetup ->
firstopen postsetup -> (removed) open_helper -> open prerelease ->
preclose free_filp_priv -> postclose pretakedown -> lastclose
postcleanup -> unload release -> reclaim_buffers_locked version ->
(removed)
postinit and version were replaced with generic code in the Linux DRM
(drivers now set their version numbers and description in the driver
structure, like on BSD). postsetup wasn't used at all. Fixes the savage
hooks for initializing and tearing down mappings at the right times.
Testing involved at least starting X, running glxgears, killing
glxgears, exiting X, and repeating.
Tested on: FreeBSD (g200, g400, r200, r128) Linux (r200, savage4)
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