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 EFF1E2C08AC; Wed, 4 Feb 2026 15:21:12 +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=1770218473; cv=none; b=T399+ycl1wLRI7F6LGmLRz1Dg9Fu33dxakA+7NqRwgo053SKEwZJUZP79WpqVdMjuIt3a7dikrc7VgTxyeoM6dABlliBeJ5Bw3Czu0DJO+XwfM6PVjcibekdp/i7722kG6s3KVqciP227x0dBG9bAxB7IZKf0zcLMVyO3ZEFzPw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770218473; c=relaxed/simple; bh=IvAZDp7R4+Xsf7bFwWVCTirHuOk+ja6Llf/Dyz7u1D4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QGYv+nx5P2hMtLcDL/697m7V4shltuXgKbuVexe71wVER2h0U2gU/pLoa764IuWOxtsmbe6TW3RK8bC5Xa/HNpCvCoIEejW9BZJStQ661vYjM5GbnINz/7JXd+7L9hluvSHP/q4pujVWFXQ3nEi2CKmuRNeSJrcOSTVrSG0J1Dw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=K37M/pOH; 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="K37M/pOH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7064DC4CEF7; Wed, 4 Feb 2026 15:21:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1770218472; bh=IvAZDp7R4+Xsf7bFwWVCTirHuOk+ja6Llf/Dyz7u1D4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=K37M/pOHiOxGOyXfY+irPTjfWmi9KNshLx2QJoWhFNP/kigHJmXDUO8EgGP+QOVIt 82Ru08Q7khAhTGotgbzBsYm1yq5aVj61ZuEEHq7P+C7EVLYMJLAK1WJXchOFe3qEV8 a2uK78zSXDz+fiPbKH7Iako0lihi9oCJCZ8f9eZw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jesse Zhang , Alex Deucher Subject: [PATCH 6.6 39/72] drm/amdgpu/soc21: fix xclk for APUs Date: Wed, 4 Feb 2026 15:40:42 +0100 Message-ID: <20260204143847.043345495@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260204143845.603454952@linuxfoundation.org> References: <20260204143845.603454952@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit e7fbff9e7622a00c2b53cb14df481916f0019742 upstream. The reference clock is supposed to be 100Mhz, but it appears to actually be slightly lower (99.81Mhz). Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/14451 Reviewed-by: Jesse Zhang Signed-off-by: Alex Deucher (cherry picked from commit 637fee3954d4bd509ea9d95ad1780fc174489860) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/soc21.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/amdgpu/soc21.c +++ b/drivers/gpu/drm/amd/amdgpu/soc21.c @@ -218,7 +218,13 @@ static u32 soc21_get_config_memsize(stru static u32 soc21_get_xclk(struct amdgpu_device *adev) { - return adev->clock.spll.reference_freq; + u32 reference_clock = adev->clock.spll.reference_freq; + + /* reference clock is actually 99.81 Mhz rather than 100 Mhz */ + if ((adev->flags & AMD_IS_APU) && reference_clock == 10000) + return 9981; + + return reference_clock; }