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{ "id": 13505, "url": "https://patchwork.libcamera.org/api/patches/13505/?format=api", "web_url": "https://patchwork.libcamera.org/patch/13505/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20210826112539.170694-5-hiroh@chromium.org>", "date": "2021-08-26T11:25:34", "name": "[libcamera-devel,v3,4/9] ipa: rkisp1: Use offset in mapping IPABuffer", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "eafe6bb939dd24b11a790de4e95e73db77eecfdf", "submitter": { "id": 63, "url": "https://patchwork.libcamera.org/api/people/63/?format=api", "name": "Hirokazu Honda", "email": "hiroh@chromium.org" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/13505/mbox/", "series": [ { "id": 2398, "url": "https://patchwork.libcamera.org/api/series/2398/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=2398", "date": "2021-08-26T11:25:30", "name": "Add offset to FrameBuffer::Plane", "version": 3, "mbox": "https://patchwork.libcamera.org/series/2398/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/13505/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/13505/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 62040BD87C\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 26 Aug 2021 11:25:57 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 14FC2688E5;\n\tThu, 26 Aug 2021 13:25:57 +0200 (CEST)", "from mail-pg1-x52a.google.com (mail-pg1-x52a.google.com\n\t[IPv6:2607:f8b0:4864:20::52a])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 7E0A268919\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 26 Aug 2021 13:25:54 +0200 (CEST)", "by mail-pg1-x52a.google.com with SMTP id x4so2823140pgh.1\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 26 Aug 2021 04:25:54 -0700 (PDT)", "from hiroh2.tok.corp.google.com\n\t([2401:fa00:8f:203:a5bc:b3dd:7208:bec1])\n\tby smtp.gmail.com with ESMTPSA id\n\ts29sm3472057pgl.38.2021.08.26.04.25.51\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tThu, 26 Aug 2021 04:25:52 -0700 (PDT)" ], "Authentication-Results": "lancelot.ideasonboard.com;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=chromium.org header.i=@chromium.org\n\theader.b=\"dDT5kqFK\"; 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\n\tThu, 26 Aug 2021 04:25:52 -0700 (PDT)", "From": "Hirokazu Honda <hiroh@chromium.org>", "To": "libcamera-devel@lists.libcamera.org", "Date": "Thu, 26 Aug 2021 20:25:34 +0900", "Message-Id": "<20210826112539.170694-5-hiroh@chromium.org>", "X-Mailer": "git-send-email 2.33.0.rc2.250.ged5fa647cd-goog", "In-Reply-To": "<20210826112539.170694-1-hiroh@chromium.org>", "References": "<20210826112539.170694-1-hiroh@chromium.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v3 4/9] ipa: rkisp1: Use offset in mapping\n\tIPABuffer", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "IPABuffer is represented by FrameBuffer. FrameBuffer::Plane has\nnow an offset. This uses the offset variable to map the IPABuffer.\nThe mapped IPABuffer is represented and managed as MappedFrameBuffer.\n\nSigned-off-by: Hirokazu Honda <hiroh@chromium.org>\nReviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n src/ipa/rkisp1/rkisp1.cpp | 33 +++++++++++++--------------------\n 1 file changed, 13 insertions(+), 20 deletions(-)", "diff": "diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp\nindex 06fb9640..046816e0 100644\n--- a/src/ipa/rkisp1/rkisp1.cpp\n+++ b/src/ipa/rkisp1/rkisp1.cpp\n@@ -10,7 +10,6 @@\n #include <queue>\n #include <stdint.h>\n #include <string.h>\n-#include <sys/mman.h>\n \n #include <linux/rkisp1-config.h>\n #include <linux/v4l2-controls.h>\n@@ -24,6 +23,8 @@\n #include <libcamera/ipa/rkisp1_ipa_interface.h>\n #include <libcamera/request.h>\n \n+#include <libcamera/internal/mapped_framebuffer.h>\n+\n namespace libcamera {\n \n LOG_DEFINE_CATEGORY(IPARkISP1)\n@@ -54,7 +55,7 @@ private:\n \tvoid metadataReady(unsigned int frame, unsigned int aeState);\n \n \tstd::map<unsigned int, FrameBuffer> buffers_;\n-\tstd::map<unsigned int, void *> buffersMemory_;\n+\tstd::map<unsigned int, MappedFrameBuffer> mappedBuffers_;\n \n \tControlInfoMap ctrls_;\n \n@@ -160,22 +161,13 @@ void IPARkISP1::mapBuffers(const std::vector<IPABuffer> &buffers)\n \t\t\t\t\t std::forward_as_tuple(buffer.planes));\n \t\tconst FrameBuffer &fb = elem.first->second;\n \n-\t\t/*\n-\t\t * \\todo Provide a helper to mmap() buffers (possibly exposed\n-\t\t * to applications).\n-\t\t */\n-\t\tbuffersMemory_[buffer.id] = mmap(NULL,\n-\t\t\t\t\t\t fb.planes()[0].length,\n-\t\t\t\t\t\t PROT_READ | PROT_WRITE,\n-\t\t\t\t\t\t MAP_SHARED,\n-\t\t\t\t\t\t fb.planes()[0].fd.fd(),\n-\t\t\t\t\t\t 0);\n-\n-\t\tif (buffersMemory_[buffer.id] == MAP_FAILED) {\n-\t\t\tint ret = -errno;\n+\t\tMappedFrameBuffer mappedBuffer(&fb, MappedFrameBuffer::MapFlag::ReadWrite);\n+\t\tif (!mappedBuffer.isValid()) {\n \t\t\tLOG(IPARkISP1, Fatal) << \"Failed to mmap buffer: \"\n-\t\t\t\t\t << strerror(-ret);\n+\t\t\t\t\t << strerror(mappedBuffer.error());\n \t\t}\n+\n+\t\tmappedBuffers_.emplace(buffer.id, std::move(mappedBuffer));\n \t}\n }\n \n@@ -186,8 +178,7 @@ void IPARkISP1::unmapBuffers(const std::vector<unsigned int> &ids)\n \t\tif (fb == buffers_.end())\n \t\t\tcontinue;\n \n-\t\tmunmap(buffersMemory_[id], fb->second.planes()[0].length);\n-\t\tbuffersMemory_.erase(id);\n+\t\tmappedBuffers_.erase(id);\n \t\tbuffers_.erase(id);\n \t}\n }\n@@ -200,7 +191,8 @@ void IPARkISP1::processEvent(const RkISP1Event &event)\n \t\tunsigned int bufferId = event.bufferId;\n \n \t\tconst rkisp1_stat_buffer *stats =\n-\t\t\tstatic_cast<rkisp1_stat_buffer *>(buffersMemory_[bufferId]);\n+\t\t\treinterpret_cast<rkisp1_stat_buffer *>(\n+\t\t\t\tmappedBuffers_.at(bufferId).maps()[0].data());\n \n \t\tupdateStatistics(frame, stats);\n \t\tbreak;\n@@ -210,7 +202,8 @@ void IPARkISP1::processEvent(const RkISP1Event &event)\n \t\tunsigned int bufferId = event.bufferId;\n \n \t\trkisp1_params_cfg *params =\n-\t\t\tstatic_cast<rkisp1_params_cfg *>(buffersMemory_[bufferId]);\n+\t\t\treinterpret_cast<rkisp1_params_cfg *>(\n+\t\t\t\tmappedBuffers_.at(bufferId).maps()[0].data());\n \n \t\tqueueRequest(frame, params, event.controls);\n \t\tbreak;\n", "prefixes": [ "libcamera-devel", "v3", "4/9" ] }