Age | Commit message (Collapse) | Author |
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If the ring is full, the engine will surely be running for more than 10ms.
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pread and pwrite must update the memory domains to ensure consistency with
the GPU. At some point, it should be possible to avoid clflush through this
path, but that isn't working for me.
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Rename 'validate_entry' to 'exec_object', then clean up some field names in
structures (renaming buffer_offset to just offset, for example).
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Now, the LRU list has objects that are completely done rendering and ready
to kick out, while the execution list has things with active rendering,
which have associated cookies and reference counts on them.
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Make the API names a bit more consistent.
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Domain information is about buffer relationships, not buffer contents. That
means a relocation contains the domain information as it knows how the
source buffer references the target buffer.
This also adds the set_domain ioctl so that user space can move buffers to
the cpu domain.
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One of our MI_FLUSH bits is reserved on 965, being always implied, and there's
a vertex cache that was forgotten.
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If objects on the lru aren't ref counted, they'll get pulled from the gtt as
soon as they are freed. This change does cause objects to get stuck in the
gtt until they're forced out by new requests. The lru should get cleaned
when the irq occurs.
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When batch buffers are executing, the ring may be stuck for a long time.
Monitor the ACTHD pointer which will show if the execution engine is
actually hung.
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This function submits a gem-based execbuffer to the ring.
It doesn't work yet.
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Names are just another unique integer set (from another idr object).
Names are removed when the user refernces (handles) are all destroyed --
this required that handles for objects be counted separately from
internal kernel references (so that we can tell when the handles are all
gone).
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Now that drm_gem_object has a drm_driver * in it, functions don't need both
parameters.
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When pinning buffers, or using execbuffer, allow the application to specify
the necessary aperture allocation alignment constraints.
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mixed 32/64 bit systems need 'special' help for ioctl where the user-space
and kernel-space datatypes differ. Fixing the datatypes to be the same size,
and align the same way for both 32 and 64-bit ppc and x86 environments will
elimiante the need to have magic 32/64-bit ioctl translation code.
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From Jesse and Zhenyu originally.
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The vblank tasklet update code must build 2D blt commands with the
appropriate tiled flags.
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The batchbuffer submission paths were fixed to use the 965-specific command,
but the vblank tasklet was not. When the older version is sent, the 965 will
lock up.
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dude kernel moduless use kernel errors :)
this fixes an oops on init when this codepath hits.
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- Note that this may not work for all nv86.
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This interface was defined completely wrong, however userspace has only
ever used 4 values from it (0x1, 0x2, 0x3 and 0x6), so fix the interface to do what userspace actually expected but define new defines for new users to use
it properly.
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Previously, the R300_CMD_WAIT command would write the passed directly to the
hardware. However this is incorrect because the R300_WAIT_* values used are
internal interface values that do not map directly to the hardware.
The new function I have added translates the R300_WAIT_* values into appropriate
values for the hardware before writing the register.
Thanks to John Bridgman for pointing this out. :-)
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The wait functions depend on PTIMER, so write the old (incorrect, but working) values for uninitialised hw
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Kernel bug 10289.
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More or less a workaround for issues on some chipsets where a context
switch results in critical data in PRAMIN being overwritten by the GPU.
The correct fix is known, but may take some time before it's a feasible
option.
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