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(parent: 973deea) | patch
drm/i915/psr: Block PKG C-State when enabling PSR
authorJouni Högander <jouni.hogander@intel.com>
Mon, 14 Apr 2025 10:05:01 +0000 (13:05 +0300)
committerJouni Högander <jouni.hogander@intel.com>
Wed, 23 Apr 2025 09:16:28 +0000 (12:16 +0300)
commit0de99007c7dfd247e39e7d5bb63cb8ee2974973c
tree80de29b32433bc1382d18421862e5c21fd1dad26tree
parent973deeada07079fb1590dbdc378a48df8ac8befacommit | diff
drm/i915/psr: Block PKG C-State when enabling PSR

Block PKG C-State when enabling PSR when enabling PSR as described in
workaround for underrun on idle PSR HW issue (Wa_16025596647).

v2: use intel_dmc_block_pkgc instead of directly writing dmc register

Bspec: 74151
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://lore.kernel.org/r/20250414100508.1208774-7-jouni.hogander@intel.com
drivers/gpu/drm/i915/display/intel_psr.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)