From patchwork Thu Feb 6 16:16:03 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Milan Zamazal X-Patchwork-Id: 22757 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 8C894C32EF for ; Thu, 6 Feb 2025 16:16:52 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 15D2268617; Thu, 6 Feb 2025 17:16:52 +0100 (CET) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="HgCVEcyp"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id E3B3E68612 for ; Thu, 6 Feb 2025 17:16:48 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1738858607; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5/m5xTaK6/3YYWZ+U2XkwQS8U3VY00KKXkXf1enOZBs=; b=HgCVEcypte95Qc26wb5XbM1RyinMmvDZ2TBDkLVrZgyKwoP1S9UNdertlJNXiRaTM/9Hh7 6lO/9+6aXjtVx/1xGpf6CW0kB1nT5NeXLqdQ08gcOnwwAnHtladFvt93phpvpWLjJlgwtj XxGHaLomHIqGotWeaNaN+r5nsB2a4VA= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-346-EiTDc-ypOI-n-kwkQxM46w-1; Thu, 06 Feb 2025 11:16:45 -0500 X-MC-Unique: EiTDc-ypOI-n-kwkQxM46w-1 X-Mimecast-MFC-AGG-ID: EiTDc-ypOI-n-kwkQxM46w Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 42DFE195604F; Thu, 6 Feb 2025 16:16:44 +0000 (UTC) Received: from mzamazal-thinkpadp1gen3.tpbc.com (unknown [10.43.17.31]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 6DF20180035E; Thu, 6 Feb 2025 16:16:42 +0000 (UTC) From: Milan Zamazal To: libcamera-devel@lists.libcamera.org Cc: Milan Zamazal , Kieran Bingham , Naushir Patuck , =?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= , Laurent Pinchart Subject: [PATCH v7 12/15] libcamera: software_isp: Make input buffer copying configurable Date: Thu, 6 Feb 2025 17:16:03 +0100 Message-ID: <20250206161607.50738-13-mzamazal@redhat.com> In-Reply-To: <20250206161607.50738-1-mzamazal@redhat.com> References: <20250206161607.50738-1-mzamazal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: uBDQoSBB56SvJv8tpsurQ4LNEhRZm0yFCIUHVqdfEc4_1738858604 X-Mimecast-Originator: redhat.com content-type: text/plain; charset="US-ASCII"; x-default=true X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" On some platforms, working directly on the input buffer is very slow due to disabled caching. This is why we copy the input buffer into standard (cached) memory. This is an unnecessary overhead on platforms with cached buffers. Let's make input buffer copying configurable. The default is still copying, as it's overhead is much lower than contingent operations on non-cached memory. Ideally, we should improve this in future to set the default to non-copying if we can be sure under observable circumstances that we are working with cached buffers. Completes software ISP TODO #6. Signed-off-by: Milan Zamazal --- Documentation/runtime_configuration.rst | 2 ++ src/libcamera/software_isp/TODO | 11 ----------- src/libcamera/software_isp/debayer_cpu.cpp | 5 ++++- 3 files changed, 6 insertions(+), 12 deletions(-) diff --git a/Documentation/runtime_configuration.rst b/Documentation/runtime_configuration.rst index a3812d44..d439fa21 100644 --- a/Documentation/runtime_configuration.rst +++ b/Documentation/runtime_configuration.rst @@ -53,6 +53,7 @@ file structure: rpi: config_file: # full path simple: + copy_input_buffer: # true/false supported_devices: - driver: # driver name, e.g. `mxc-isi` software_isp: # true/false @@ -88,6 +89,7 @@ Configuration file example rpi: config_file: /usr/local/share/libcamera/pipeline/rpi/vc4/minimal_mem.yaml simple: + copy_input_buffer: false supported_devices: - driver: mxc-isi software_isp: true diff --git a/src/libcamera/software_isp/TODO b/src/libcamera/software_isp/TODO index a50db668..2c919f44 100644 --- a/src/libcamera/software_isp/TODO +++ b/src/libcamera/software_isp/TODO @@ -71,17 +71,6 @@ per-frame buffers like we do for hardware ISPs. --- -6. Input buffer copying configuration - -> DebayerCpu::DebayerCpu(std::unique_ptr stats) -> : stats_(std::move(stats)), gammaCorrection_(1.0) -> { -> enableInputMemcpy_ = true; - -Set this appropriately and/or make it configurable. - ---- - 7. Performance measurement configuration > void DebayerCpu::process(FrameBuffer *input, FrameBuffer *output, DebayerParams params) diff --git a/src/libcamera/software_isp/debayer_cpu.cpp b/src/libcamera/software_isp/debayer_cpu.cpp index 31ab96ab..ce5141e8 100644 --- a/src/libcamera/software_isp/debayer_cpu.cpp +++ b/src/libcamera/software_isp/debayer_cpu.cpp @@ -22,6 +22,7 @@ #include "libcamera/internal/bayer_format.h" #include "libcamera/internal/dma_buf_allocator.h" #include "libcamera/internal/framebuffer.h" +#include "libcamera/internal/global_configuration.h" #include "libcamera/internal/mapped_framebuffer.h" namespace libcamera { @@ -48,7 +49,9 @@ DebayerCpu::DebayerCpu(std::unique_ptr stats) * always set it to true as the safer choice but this should be changed in * future. */ - enableInputMemcpy_ = true; + enableInputMemcpy_ = GlobalConfiguration::option( + "pipelines.simple.copy_input_buffer") + .value_or(true); /* Initialize color lookup tables */ for (unsigned int i = 0; i < DebayerParams::kRGBLookupSize; i++)