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Since the TTM type isn't upstream yet, we need to make sure libdrm uses
what the kernel uses, which is _DRM_GEM = 6.
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Cast a couple of %llx args to unsigned long long.
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Add a drm_intel_gem_bo_map_gtt() function for mapping a buffer object
through the aperture rather than directly to its CPU cacheable memory.
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The set_page_locked() function has changed its name again.
2.6.28 offers __set_page_locked() instead, which uses non-atomic
__set_bit() to do the work. In this case, offer our own
set_page_locked() using the atomic set_bit(), because I do not know
if atomic access is really necessary. Atomic behaviour is the one
previously expected.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
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I wanted to avoid doing this, as it's a bunch of churn, but there was a
conflict between the dri_ symbols in libdrm and the symbols that were in
Mesa in 7.2, which broke Mesa 7.2 AIGLX when the 2D driver had loaded new
libdrm symbols. The new naming was recommended by cworth for giving the
code a unique prefix identifying where the code lives.
Additionally, take the opportunity to fix up two API mistakes: emit_reloc's
arguments were in a nonsensical order, and set_tiling lacked the stride
argument that the kernel will want to use soon. API compatibility with
released code is maintained using #defines.
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This relies on a new kernel ioctl to get the available aperture size.
In order to provide reasonable performance from dri_bufmgr_check_aperture, we
now require that once a buffer has been used as the target of a relocation,
it gets no further relocations added to it. This cuts the cost of
check_aperture from 10% to 1% in the 3D driver with no code changes, but
slightly complicates our plans for the 2D driver.
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This turns the various nvXX_graph_init_ctxvals() methods into tables,
and speeds up compliation of nv50_graph.c quite a bit. This has bothered
me for a while, but others are complaining now so it's time to fix it :)
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The drm_compat.c version of kmap_atomic_prot_pfn() uses the macro
pgd_offset_k(), which references the symbol init_mm.
Starting in 2.6.25, init_mm is no longer exported by default.
The only user of kmap_atomic_prot_pfn() is i915, so this should
not hurt anyone, and it allows people to load drm.ko.
Signed-off-by: Pekka Paalanen <pq@iki.fi>
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This allows us to not crash X when using newer Intel ddx drivers.
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- logic was wrong. rs400/rs480 should clear the RADEON_BUS_MASTER_DIS bit
- should fix kernel bug 11798
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rs400 is just like rs480. I mixed up the internal
chipset names for rs600 and rs400.
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Olaf Kirch noticed that the i915_set_status_page() function of the i915
kernel driver calls ioremap with an address offset that is supplied by
userspace via ioctl. The function zeroes the mapped memory via memset
and tells the hardware about the address. Turns out that access to that
ioctl is not restricted to root so users could probably exploit that to
do nasty things. We haven't tried to write actual exploit code though.
It only affects the Intel G33 series and newer.
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Don't count on ioctl returning -errno; use errno directly.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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libdrm_intel needs symbols from libdrm, so link against it.
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Bug #18035. Fixes deadlock in glean texCube testcase.
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Allocate memory from different pools. This allows the OS to track memory
allocations for us, much like the linux memory debugging. This will ease
tracking down memory leaks since the OS can track the number of allocations
from each pool and help to point us in the right direction. Also replace
drm_alloc and friends with static __inline__ versions while we are here.
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linux_for_each_safe would not handle lists with a single entry.
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When using bufmgr_fake without DRM, the X server idles the ring whenever it
wants to wait for something to complete (brutal, but effective). In this
case, bufmgr_fake must treat the pending fence as having passed. However, it
wasn't recording the fences as it emitted them, nor cleaning buffers as they
passed.
Signed-off-by: Keith Packard <keithp@keithp.com>
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We want to be able to use the bufmgr from multiple threads for GL, and thus
we need to protect the internal structures.
The pthread-stubs package is used so that programs not linked against
pthreads get weak symbols to stubs and don't eat most of the cost.
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http://bugs.freedesktop.org/show_bug.cgi?id=17705
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That's what I get for committing at 3 AM.
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See bug 17908
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This is already handled for us.
Suggested by John Baldwin
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We don't explicitly check for error here and M_WAITOK will just put the
process to sleep waiting on resources to become available.
Suggested by John Baldwin
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d_mmap gets called twice and we are only able to associate the file_priv
during the first call. The second call will return EBADF and we need to
assume that the call was succesful. d_mmap will not tolerate having an
error returned for the second call.
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Fixes http://bugs.freedesktop.org/show_bug.cgi?id=17705
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The gltestperf demo in some cases took over seven seconds to make it through
one batchbuffer on a GM965.
Bug #17004.
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I'd swapped the operands, so if we weren't in lockstep with the hardware we
said the sequence was always passed. Additionally, a race was available that
we might have failed at recovering from. Instead, I've replaced the logic
with new stuff that should be more robust and not rely on all the parties in
userland following the same IRQ_EMIT() == 1 protocol. Also, in a radical
departure from past efforts, include a long comment describing the failure
modes and how we're working around them.
Thanks to haihao for catching the original issue.
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