media: venus: vdec: decoded picture buffer handling during reconfig sequence

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In existing implementation, driver is freeing and un-mapping all the
decoded picture buffers(DPB) as part of dynamic resolution change(DRC)
handling. As a result, when firmware try to access the DPB buffer, from
previous sequence, SMMU context fault is seen due to the buffer being
already unmapped.

With this change, driver defines ownership of each DPB buffer. If a buffer
is owned by firmware, driver would skip from un-mapping the same.

Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

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This commit is contained in:

Mansur Alisha Shaik 2021-10-20 07:44:08 +01:00 • committed by Mauro Carvalho Chehab

parent 3227a8f7cf

commit 40d87aafee

4 changed files with 60 additions and 2 deletions

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1

drivers/media/platform/qcom/venus/core.h

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51

drivers/media/platform/qcom/venus/helpers.c

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3

drivers/media/platform/qcom/venus/helpers.h

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7

drivers/media/platform/qcom/venus/vdec.c

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