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intel_batch_start_atomic takes an argument in 32-bit units, and so it must
multiply that by 4 before passing it to intel_batch_require_space, which
takes an argument in bytes.
We should figure out what units we want to use and use the same everywhere...
Signed-off-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit 1142353b487c155a31011923fbd08ec67e60f505)
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This also introduces tests to make sure that we asked for enough reserved space
and that we don't allow wrapping at the wrong time.
This fixes a hang during text rendering with DRI2 and a GL client running,
but could potentially affect text rendering with GEM in general with an
exceptional batchbuffer setup.
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This tracks whether the last command in each batch is an MI_FLUSH command
and avoids appending another MI_FLUSH in the non-GEM cases.
Signed-off-by: Keith Packard <keithp@keithp.com>
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Needed for proper acceleration & batch buffer handling.
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This is based on airlied's RING->BATCH commit. The 965 code still needs to
be fixed up for relocations.
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The batchbuffers are managed using libdrm and bufmgr_fake, and dispatched from
the ring from userland.
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