From nobody Mon Feb 9 00:02:53 2026 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 E76B21FD10E; Sun, 24 Mar 2024 23:02:07 +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=1711321329; cv=none; b=PA4b1BcFvD1/qJedS21khZCZsXOwDnsb6Hln4ldyRpCKBHC9UJpmPxEdkTn1spQBHA1orQ3IFVP1Zg4phJ+w4LpV+XSyYF7uosuDMMDh8xBS5QQDKg5JmKAKuTAw3qmvUGFjaFUOlurTTJJkX/Xxwi8bxfyBi5qjyWXEMkc99r0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711321329; c=relaxed/simple; bh=Em+y3OczuTBhg6IrRilmQsX+jlGDdnBmeK0jNqSWFp8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KHSwRTJowe5NElVxmRIB70r744b3O4vba3gU91eWHKEy5ogrDAvZy46dW2fIJZkuOxN8FgybOfKgZxstRuFaQe2cn0jlTR1iiqZ+D1nLF+ER2Zs2rINM3SurDXyl7is5/Yq3ftr44lxvdOkEoSx0bAAMDYtdcZtvPJGtfd2Z50s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nEyofUal; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nEyofUal" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2DA2FC433F1; Sun, 24 Mar 2024 23:02:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711321327; bh=Em+y3OczuTBhg6IrRilmQsX+jlGDdnBmeK0jNqSWFp8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nEyofUalN9WyVaZfWmBCFJ6dwvG2nJ+ShT0OU59r28SmMk0hmQtLig0d+vTr9eARa 54kcb8xdAOkFZWxvhwPmywB27MNmYT+DPsLatw7Vs9TZXrVGBkTKfaUkZdKiiaktTm RCAMd/ote7Nx8IDnExUagtgQvqrW1dtTGIAiNx0drNLAAs4dPmHNg6HfqzCmjEsJ2E bNnw/wKJPlLRpHhoTQF/U/bJvOS67Q91+FLjsB/JBH7GPkKd170R+hJBPOIiJP34+y kTdfJoHlm4GE+/LwWHQjc1/8H6IexDr2XVi4jb9UfzEMjjdL3Bbh48inqOp8kGAs/G XW31IJb9yfJNw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Prike Liang , Alex Deucher , Sasha Levin Subject: [PATCH 6.6 051/638] drm/amdgpu: Enable gpu reset for S3 abort cases on Raven series Date: Sun, 24 Mar 2024 18:51:28 -0400 Message-ID: <20240324230116.1348576-52-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324230116.1348576-1-sashal@kernel.org> References: <20240324230116.1348576-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Prike Liang [ Upstream commit c671ec01311b4744b377f98b0b4c6d033fe569b3 ] Currently, GPU resets can now be performed successfully on the Raven series. While GPU reset is required for the S3 suspend abort case. So now can enable gpu reset for S3 abort cases on the Raven series. Signed-off-by: Prike Liang Acked-by: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/soc15.c | 45 +++++++++++++++++------------- 1 file changed, 25 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgp= u/soc15.c index 2a7c606d1d191..a41ed67ea9fea 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -574,11 +574,34 @@ soc15_asic_reset_method(struct amdgpu_device *adev) return AMD_RESET_METHOD_MODE1; } =20 +static bool soc15_need_reset_on_resume(struct amdgpu_device *adev) +{ + u32 sol_reg; + + sol_reg =3D RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); + + /* Will reset for the following suspend abort cases. + * 1) Only reset limit on APU side, dGPU hasn't checked yet. + * 2) S3 suspend abort and TOS already launched. + */ + if (adev->flags & AMD_IS_APU && adev->in_s3 && + !adev->suspend_complete && + sol_reg) + return true; + + return false; +} + static int soc15_asic_reset(struct amdgpu_device *adev) { /* original raven doesn't have full asic reset */ - if ((adev->apu_flags & AMD_APU_IS_RAVEN) || - (adev->apu_flags & AMD_APU_IS_RAVEN2)) + /* On the latest Raven, the GPU reset can be performed + * successfully. So now, temporarily enable it for the + * S3 suspend abort case. + */ + if (((adev->apu_flags & AMD_APU_IS_RAVEN) || + (adev->apu_flags & AMD_APU_IS_RAVEN2)) && + !soc15_need_reset_on_resume(adev)) return 0; =20 switch (soc15_asic_reset_method(adev)) { @@ -1296,24 +1319,6 @@ static int soc15_common_suspend(void *handle) return soc15_common_hw_fini(adev); } =20 -static bool soc15_need_reset_on_resume(struct amdgpu_device *adev) -{ - u32 sol_reg; - - sol_reg =3D RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); - - /* Will reset for the following suspend abort cases. - * 1) Only reset limit on APU side, dGPU hasn't checked yet. - * 2) S3 suspend abort and TOS already launched. - */ - if (adev->flags & AMD_IS_APU && adev->in_s3 && - !adev->suspend_complete && - sol_reg) - return true; - - return false; -} - static int soc15_common_resume(void *handle) { struct amdgpu_device *adev =3D (struct amdgpu_device *)handle; --=20 2.43.0