From patchwork Thu Apr 4 08:46:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Milan Zamazal X-Patchwork-Id: 19822 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 66A74C327C for ; Thu, 4 Apr 2024 08:47:38 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 7FBD96337E; Thu, 4 Apr 2024 10:47:37 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="FZrkD/52"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 7AB9463373 for ; Thu, 4 Apr 2024 10:47:34 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1712220453; 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=zHWYHQ7jsPzl6n/6LYUiH/DkKCivo5ni/Q8HyVC7sVY=; b=FZrkD/52zUoB/9KNvaQOP5hz3t+Z81bNHAVGCMwDPx0g0F8JyQBdbewM5WrIqKPenO/erK jb9eHlptyVjZNFQe4ZMtJ5Mnwm/a16bQdhDiO0XMYRTR1SPH9bF3MI2IvkrnJc+S+065AG TKqS0rpjsQa1iD9qLMjIOztTmnYDpy0= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-375-zblL_6FxNQKWWCf17ekWsA-1; Thu, 04 Apr 2024 04:47:29 -0400 X-MC-Unique: zblL_6FxNQKWWCf17ekWsA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (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 mimecast-mx02.redhat.com (Postfix) with ESMTPS id 11C161C07825; Thu, 4 Apr 2024 08:47:29 +0000 (UTC) Received: from nuthatch.brq.redhat.com (unknown [10.43.17.39]) by smtp.corp.redhat.com (Postfix) with ESMTP id 802118173; Thu, 4 Apr 2024 08:47:27 +0000 (UTC) From: Milan Zamazal To: libcamera-devel@lists.libcamera.org Cc: Andrey Konovalov , Andrei Konovalov , Bryan O'Donoghue , Maxime Ripard , Milan Zamazal , Pavel Machek , Hans de Goede , Kieran Bingham , Laurent Pinchart , Naushir Patuck Subject: [PATCH v7 02/18] libcamera: internal: Move dma_heaps.[h, cpp] to common directories Date: Thu, 4 Apr 2024 10:46:39 +0200 Message-ID: <20240404084657.353464-3-mzamazal@redhat.com> In-Reply-To: <20240404084657.353464-1-mzamazal@redhat.com> References: <20240404084657.353464-1-mzamazal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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" From: Andrey Konovalov DmaHeap class is useful outside the RPi pipeline handler too. Move dma_heaps.h and dma_heaps.cpp to common directories. Update the build files and RPi vc4 pipeline handler accordingly. Tested-by: Bryan O'Donoghue # sc8280xp Lenovo x13s Tested-by: Pavel Machek Reviewed-by: Kieran Bingham Reviewed-by: Naushir Patuck Reviewed-by: Pavel Machek Signed-off-by: Andrey Konovalov Signed-off-by: Hans de Goede Reviewed-by: Milan Zamazal Reviewed-by: Laurent Pinchart --- .../libcamera/internal}/dma_heaps.h | 4 -- include/libcamera/internal/meson.build | 1 + .../{pipeline/rpi/vc4 => }/dma_heaps.cpp | 63 ++++++++++++++----- src/libcamera/meson.build | 1 + src/libcamera/pipeline/rpi/vc4/meson.build | 1 - src/libcamera/pipeline/rpi/vc4/vc4.cpp | 5 +- 6 files changed, 52 insertions(+), 23 deletions(-) rename {src/libcamera/pipeline/rpi/vc4 => include/libcamera/internal}/dma_heaps.h (92%) rename src/libcamera/{pipeline/rpi/vc4 => }/dma_heaps.cpp (51%) diff --git a/src/libcamera/pipeline/rpi/vc4/dma_heaps.h b/include/libcamera/internal/dma_heaps.h similarity index 92% rename from src/libcamera/pipeline/rpi/vc4/dma_heaps.h rename to include/libcamera/internal/dma_heaps.h index 0a4a8d86..cff8f140 100644 --- a/src/libcamera/pipeline/rpi/vc4/dma_heaps.h +++ b/include/libcamera/internal/dma_heaps.h @@ -13,8 +13,6 @@ namespace libcamera { -namespace RPi { - class DmaHeap { public: @@ -27,6 +25,4 @@ private: UniqueFD dmaHeapHandle_; }; -} /* namespace RPi */ - } /* namespace libcamera */ diff --git a/include/libcamera/internal/meson.build b/include/libcamera/internal/meson.build index 7f1f3440..33eb0fb3 100644 --- a/include/libcamera/internal/meson.build +++ b/include/libcamera/internal/meson.build @@ -25,6 +25,7 @@ libcamera_internal_headers = files([ 'device_enumerator.h', 'device_enumerator_sysfs.h', 'device_enumerator_udev.h', + 'dma_heaps.h', 'formats.h', 'framebuffer.h', 'ipa_manager.h', diff --git a/src/libcamera/pipeline/rpi/vc4/dma_heaps.cpp b/src/libcamera/dma_heaps.cpp similarity index 51% rename from src/libcamera/pipeline/rpi/vc4/dma_heaps.cpp rename to src/libcamera/dma_heaps.cpp index 317b1fc1..70da6f3a 100644 --- a/src/libcamera/pipeline/rpi/vc4/dma_heaps.cpp +++ b/src/libcamera/dma_heaps.cpp @@ -5,19 +5,25 @@ * dma_heaps.h - Helper class for dma-heap allocations. */ -#include "dma_heaps.h" +#include "libcamera/internal/dma_heaps.h" #include #include -#include -#include #include #include +#include +#include + #include +/** + * \file dma_heaps.cpp + * \brief CMA dma-heap allocator + */ + /* - * /dev/dma-heap/linux,cma is the dma-heap allocator, which allows dmaheap-cma + * /dev/dma_heap/linux,cma is the dma-heap allocator, which allows dmaheap-cma * to only have to worry about importing. * * Annoyingly, should the cma heap size be specified on the kernel command line @@ -30,18 +36,30 @@ static constexpr std::array heapNames = { namespace libcamera { -LOG_DECLARE_CATEGORY(RPI) +LOG_DEFINE_CATEGORY(DmaHeap) -namespace RPi { +/** + * \class DmaHeap + * \brief Helper class for CMA dma-heap allocations + */ +/** + * \brief Construct a DmaHeap that owns a CMA dma-heap file descriptor + * + * Looks for a CMA dma-heap device to use. If it fails to open any dma-heap + * device, an invalid DmaHeap object is constructed. + * + * Check the new DmaHeap object with DmaHeap::isValid before using it. + */ DmaHeap::DmaHeap() { for (const char *name : heapNames) { int ret = ::open(name, O_RDWR | O_CLOEXEC, 0); if (ret < 0) { ret = errno; - LOG(RPI, Debug) << "Failed to open " << name << ": " - << strerror(ret); + LOG(DmaHeap, Debug) + << "Failed to open " << name << ": " + << strerror(ret); continue; } @@ -50,11 +68,30 @@ DmaHeap::DmaHeap() } if (!dmaHeapHandle_.isValid()) - LOG(RPI, Error) << "Could not open any dmaHeap device"; + LOG(DmaHeap, Error) << "Could not open any dmaHeap device"; } +/** + * \brief Destroy the DmaHeap instance + */ DmaHeap::~DmaHeap() = default; +/** + * \fn DmaHeap::isValid() + * \brief Check if the DmaHeap instance is valid + * \return True if the DmaHeap is valid, false otherwise + */ + +/** + * \brief Allocate a dma-buf from the DmaHeap + * \param [in] name The name to set for the allocated buffer + * \param [in] size The size of the buffer to allocate + * + * Allocates a dma-buf with read/write access. + * If the allocation fails returns invalid UniqueFD. + * + * \return The UniqueFD of the allocated buffer + */ UniqueFD DmaHeap::alloc(const char *name, std::size_t size) { int ret; @@ -69,22 +106,18 @@ UniqueFD DmaHeap::alloc(const char *name, std::size_t size) ret = ::ioctl(dmaHeapHandle_.get(), DMA_HEAP_IOCTL_ALLOC, &alloc); if (ret < 0) { - LOG(RPI, Error) << "dmaHeap allocation failure for " - << name; + LOG(DmaHeap, Error) << "dmaHeap allocation failure for " << name; return {}; } UniqueFD allocFd(alloc.fd); ret = ::ioctl(allocFd.get(), DMA_BUF_SET_NAME, name); if (ret < 0) { - LOG(RPI, Error) << "dmaHeap naming failure for " - << name; + LOG(DmaHeap, Error) << "dmaHeap naming failure for " << name; return {}; } return allocFd; } -} /* namespace RPi */ - } /* namespace libcamera */ diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build index 2e7b0c77..dd8107fa 100644 --- a/src/libcamera/meson.build +++ b/src/libcamera/meson.build @@ -15,6 +15,7 @@ libcamera_sources = files([ 'delayed_controls.cpp', 'device_enumerator.cpp', 'device_enumerator_sysfs.cpp', + 'dma_heaps.cpp', 'fence.cpp', 'formats.cpp', 'framebuffer.cpp', diff --git a/src/libcamera/pipeline/rpi/vc4/meson.build b/src/libcamera/pipeline/rpi/vc4/meson.build index cdb049c5..386e2296 100644 --- a/src/libcamera/pipeline/rpi/vc4/meson.build +++ b/src/libcamera/pipeline/rpi/vc4/meson.build @@ -1,7 +1,6 @@ # SPDX-License-Identifier: CC0-1.0 libcamera_sources += files([ - 'dma_heaps.cpp', 'vc4.cpp', ]) diff --git a/src/libcamera/pipeline/rpi/vc4/vc4.cpp b/src/libcamera/pipeline/rpi/vc4/vc4.cpp index ad7dddde..947b1e73 100644 --- a/src/libcamera/pipeline/rpi/vc4/vc4.cpp +++ b/src/libcamera/pipeline/rpi/vc4/vc4.cpp @@ -12,12 +12,11 @@ #include #include "libcamera/internal/device_enumerator.h" +#include "libcamera/internal/dma_heaps.h" #include "../common/pipeline_base.h" #include "../common/rpi_stream.h" -#include "dma_heaps.h" - using namespace std::chrono_literals; namespace libcamera { @@ -87,7 +86,7 @@ public: RPi::Device isp_; /* DMAHEAP allocation helper. */ - RPi::DmaHeap dmaHeap_; + DmaHeap dmaHeap_; SharedFD lsTable_; struct Config {