From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3AC1C245012; Tue, 26 Aug 2025 11:23:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756207413; cv=none; b=AaLM7xWHdI/heZOKws1ZkR7Hp9TZRUBwW6ycBFiENdhpQDUTIa2ypp+nUvwmoenTfy+s+Lo1UJa9aq0MzIEYMxt6j3u0XMCTTAiNE0DapXmLRyEp7haYQh6OCBucWn91X6hbnkKTgIQu3/kGEnZX7unU1uvzO6ru//9wBvXaSZY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756207413; c=relaxed/simple; bh=NXoFARUjflh7aMqkKVlWDBbgnBNDDtomCWHeeEq/s6U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LVLWVbiaxdb3MyexRvtQgG/ch/ZybLkhxtQg633nptEth0MMfxkT0oiz2otbaXAa/5cfl5/PiIvXvcRb7Mx41jVUKUA4h7ZEe2Jctd3Op7D0VnWH4b1cGFtKkLcRBOipLdg8FtXAfRAU2LEuKx4Gb52NbjyiYI9I0mLi4CkLHnw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=IE688jYU; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="IE688jYU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79484C4CEF1; Tue, 26 Aug 2025 11:23:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756207412; bh=NXoFARUjflh7aMqkKVlWDBbgnBNDDtomCWHeeEq/s6U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IE688jYUnN1Dr134c/cKdqbO1OFlZpNX80tZaRAIfI0kKPQArgtYgHojEhXbguaXh NnftHPEVK5TxU929az4YiEzYSPDmNCwNF2su7tQIuMxdI3JGKpaqAD0gbO+O+D/ygk HHkVeMGeA+PSKPYLaDW05Q8ZpnaW85xnRyyLUSlA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alex Deucher , Mario Limonciello Subject: [PATCH 6.16 172/457] drm/amd: Restore cached power limit during resume Date: Tue, 26 Aug 2025 13:07:36 +0200 Message-ID: <20250826110941.627201471@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110937.289866482@linuxfoundation.org> References: <20250826110937.289866482@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.16-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mario Limonciello commit ed4efe426a49729952b3dc05d20e33b94409bdd1 upstream. The power limit will be cached in smu->current_power_limit but if the ASIC goes into S3 this value won't be restored. Restore the value during SMU resume. Acked-by: Alex Deucher Link: https://lore.kernel.org/r/20250725031222.3015095-2-superm1@kernel.org Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher (cherry picked from commit 26a609e053a6fc494403e95403bc6a2470383bec) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -2175,6 +2175,12 @@ static int smu_resume(struct amdgpu_ip_b adev->pm.dpm_enabled = true; + if (smu->current_power_limit) { + ret = smu_set_power_limit(smu, smu->current_power_limit); + if (ret && ret != -EOPNOTSUPP) + return ret; + } + dev_info(adev->dev, "SMU is resumed successfully!\n"); return 0;