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 2D80A35BDBA; Tue, 16 Dec 2025 12:05:30 +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=1765886731; cv=none; b=CnaBvxUSBY3OGMzFO7Dyfgymkk3QoXCoHOLhm2OLvwAx2vNg8MU6GHcMF6vGyzxKHOnbEndKndFjjN+eQMci87FrlpEqkXQ6St7K+oVYqlJr82CfHGOLwtxCa0W1mNW5MR7BTjEXCatbLNXnsNrrzr0kPc6qb44EI+L9MZrkXDo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765886731; c=relaxed/simple; bh=V5Fp7qyCjzGt+stkkj5KaGL2r0fferOvGqhXhNSRm0A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eJkE7FoChLUqhqaGM4NTmJrtpM6hGyUbGhsL73VTt7dKOSPFy7aZU3H/7p7z1wFpk7egvZIZEhUORXSMRiV9ngqhyfToUAm6QyACmR8GnKlq39vTjCFZIoll+SYoZAAu5qUw1mkBpct6Sr0Mp4WXeap+8ozO338H3OeimgQP1t4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gOkg22lg; 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="gOkg22lg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B5F0C4CEF1; Tue, 16 Dec 2025 12:05:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1765886730; bh=V5Fp7qyCjzGt+stkkj5KaGL2r0fferOvGqhXhNSRm0A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gOkg22lg4UcWj7WFSGCo6zqO2fFB9LCWsxbfr1vN3jI3F7mzGP75U6rYsuAPyTmhb hIT8otX72mnlCEmdlHC/ysMWFfv9Uir5qBhvHoqxgenwjTuoDwoD+0N6bVO7OusZwi 1wBX6GgCdlclyavaNtvZEG+xyXk6dBeSOIphrJQc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lizhi Hou , Karol Wachowski , Sasha Levin Subject: [PATCH 6.18 016/614] accel/ivpu: Fix DCT active percent format Date: Tue, 16 Dec 2025 12:06:23 +0100 Message-ID: <20251216111401.890721648@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251216111401.280873349@linuxfoundation.org> References: <20251216111401.280873349@linuxfoundation.org> User-Agent: quilt/0.69 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 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Karol Wachowski [ Upstream commit aa1c2b073ad23847dd2e7bdc7d30009f34ed7f59 ] The pcode MAILBOX STATUS register PARAM2 field expects DCT active percent in U1.7 value format. Convert percentage value to this format before writing to the register. Fixes: a19bffb10c46 ("accel/ivpu: Implement DCT handling") Reviewed-by: Lizhi Hou Signed-off-by: Karol Wachowski Link: https://lore.kernel.org/r/20251001104322.1249896-1-karol.wachowski@linux.intel.com Signed-off-by: Sasha Levin --- drivers/accel/ivpu/ivpu_hw_btrs.c | 2 +- drivers/accel/ivpu/ivpu_hw_btrs.h | 2 +- drivers/accel/ivpu/ivpu_pm.c | 9 +++++++-- 3 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/accel/ivpu/ivpu_hw_btrs.c b/drivers/accel/ivpu/ivpu_hw_btrs.c index afdb3b2aa72a7..aa33f562d29c1 100644 --- a/drivers/accel/ivpu/ivpu_hw_btrs.c +++ b/drivers/accel/ivpu/ivpu_hw_btrs.c @@ -752,7 +752,7 @@ int ivpu_hw_btrs_dct_get_request(struct ivpu_device *vdev, bool *enable) } } -void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u32 active_percent) +void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u8 active_percent) { u32 val = 0; u32 cmd = enable ? DCT_ENABLE : DCT_DISABLE; diff --git a/drivers/accel/ivpu/ivpu_hw_btrs.h b/drivers/accel/ivpu/ivpu_hw_btrs.h index 032c384ac3d4d..c4c10e22f30f3 100644 --- a/drivers/accel/ivpu/ivpu_hw_btrs.h +++ b/drivers/accel/ivpu/ivpu_hw_btrs.h @@ -36,7 +36,7 @@ u32 ivpu_hw_btrs_dpu_freq_get(struct ivpu_device *vdev); bool ivpu_hw_btrs_irq_handler_mtl(struct ivpu_device *vdev, int irq); bool ivpu_hw_btrs_irq_handler_lnl(struct ivpu_device *vdev, int irq); int ivpu_hw_btrs_dct_get_request(struct ivpu_device *vdev, bool *enable); -void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u32 active_percent); +void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u8 active_percent); u32 ivpu_hw_btrs_telemetry_offset_get(struct ivpu_device *vdev); u32 ivpu_hw_btrs_telemetry_size_get(struct ivpu_device *vdev); u32 ivpu_hw_btrs_telemetry_enable_get(struct ivpu_device *vdev); diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c index 475ddc94f1cfe..457ccf09df545 100644 --- a/drivers/accel/ivpu/ivpu_pm.c +++ b/drivers/accel/ivpu/ivpu_pm.c @@ -502,6 +502,11 @@ void ivpu_pm_irq_dct_work_fn(struct work_struct *work) else ret = ivpu_pm_dct_disable(vdev); - if (!ret) - ivpu_hw_btrs_dct_set_status(vdev, enable, vdev->pm->dct_active_percent); + if (!ret) { + /* Convert percent to U1.7 format */ + u8 val = DIV_ROUND_CLOSEST(vdev->pm->dct_active_percent * 128, 100); + + ivpu_hw_btrs_dct_set_status(vdev, enable, val); + } + } -- 2.51.0