From 228e98e2021cef1b4f5f0d8614b4371e05d9098d Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 27 Mar 2025 17:33:49 -0400 Subject: [PATCH] drm/amdgpu/mes11: optimize MES pipe FW version fetching commit b71a2bb0ce07f40f92f59ed7f283068e41b10075 upstream. Don't fetch it again if we already have it. It seems the registers don't reliably have the value at resume in some cases. Fixes: 028c3fb37e70 ("drm/amdgpu/mes11: initiate mes v11 support") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4083 Reviewed-by: Mario Limonciello Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/mes_v11_0.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c index 231a3d490ea8e..7a773fcd7752c 100644 --- a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c @@ -859,6 +859,10 @@ static void mes_v11_0_get_fw_version(struct amdgpu_device *adev) { int pipe; + /* return early if we have already fetched these */ + if (adev->mes.sched_version && adev->mes.kiq_version) + return; + /* get MES scheduler/KIQ versions */ mutex_lock(&adev->srbm_mutex);