drm/panthor: Support 64-bit endpoint_req register for Mali-G1

Browse source

Add support for the 64-bit endpoint_req register introduced in CSF v4.0+
GPUs. Unlike a simple register widening, the 64-bit variant occupies the
next 64 bits after the original 32-bit field, requiring
version-dependent access.

This change introduces helper functions to read, write, and update the
endpoint_req register, ensuring correct handling on both pre-v4.0 and
v4.0+ firmwares.

Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Link: https://patch.msgid.link/20251125125548.3282320-8-karunika.choo@arm.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>

...

This commit is contained in:

Karunika Choo 2025-11-25 12:55:47 +00:00 • committed by Boris Brezillon

parent 5140725498

commit 2008f49a63

3 changed files with 72 additions and 10 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

36

drivers/gpu/drm/panthor/panthor_fw.c

View file

25

drivers/gpu/drm/panthor/panthor_fw.h

View file

21

drivers/gpu/drm/panthor/panthor_sched.c

View file