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| author | Shubhankar Milind Sardeshpande <Shubhankar.MilindSardeshpande@amd.com> | 2026-05-21 10:55:18 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-06-17 18:07:31 -0400 |
| commit | 76589bcc73f477ef2b3b90e4fae6a7a4dfd925af (patch) | |
| tree | f2b05efa411296aaa022cc10aca98e66757d22ee /include/linux/device-id/git@git.tavy.me:linux-stable.git | |
| parent | 1c2d7a656655a50bd1b7227fb26d173959a1955d (diff) | |
drm/amd/pm: re-enable MC access after PrepareMp1ForUnload on SMU V15 APUs
During smu_v15_0_0_system_features_control(), the driver sends a
PrepareMp1ForUnload message to PMFW. PMFW then performs nBIF and SYSHUB
function-level resets (FLR), disabling PCIe CFG space reset, which
clears the framebuffer enable bit to zero and disables MC (memory controller)
access from the host.
Re-enable MC access via the nbio mc_access_enable callback right after
PrepareMp1ForUnload completes in smu_v15_0_0_system_features_control().
Signed-off-by: Shubhankar Milind Sardeshpande <Shubhankar.MilindSardeshpande@amd.com>
Signed-off-by: Suresh Guttula <Suresh.Guttula@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 840a3c5aeae779a3bc75d7f747c3ed18b1af6507)
Cc: stable@vger.kernel.org
Diffstat (limited to 'include/linux/device-id/git@git.tavy.me:linux-stable.git')
0 files changed, 0 insertions, 0 deletions