drivers: media: bcm2835_isp: Cache LS table dmabuf #6429
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6by9
reviewed
Oct 22, 2024
Clients such as libcamera do not change the LS table dmabuf on every frame. In such cases instead of mapping/remapping the same dmabuf on every frame to send to the firmware, cache the dmabuf once and only update and remap if the dmabuf has been changed by the userland client. Signed-off-by: Naushir Patuck <[email protected]>
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@6by9 I think this is ready to merge if you are happy with the changes. |
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Not the easiest to read on a phone, but it looks OK. |
popcornmix
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Nov 1, 2024
kernel: drivers: media: bcm2835_isp: Cache LS table dmabuf See: raspberrypi/linux#6429 kernel: arm64: dts: Sort out CM5 and I/O board I2C ports See: raspberrypi/linux#6441 kernel: cgroup: Use kernel command line to disable memory cgroup See: raspberrypi/linux#6439
popcornmix
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kernel: drivers: media: bcm2835_isp: Cache LS table dmabuf See: raspberrypi/linux#6429 kernel: arm64: dts: Sort out CM5 and I/O board I2C ports See: raspberrypi/linux#6441 kernel: cgroup: Use kernel command line to disable memory cgroup See: raspberrypi/linux#6439
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Clients such as libcamera do not change the LS table dmabuf on every frame. In such cases instead of mapping/remapping the same dmabuf on every frame to send to the firmware, cache the dmabuf once and only update and remap if the dmabuf has been changed by the userland client.