From patchwork Fri May 8 00:27:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Scott Branden X-Patchwork-Id: 11535189 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6BA8A913 for ; Fri, 8 May 2020 00:28:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53F4720CC7 for ; Fri, 8 May 2020 00:28:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="Jj5o2Eh+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726598AbgEHA1x (ORCPT ); Thu, 7 May 2020 20:27:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726509AbgEHA1w (ORCPT ); Thu, 7 May 2020 20:27:52 -0400 Received: from mail-pj1-x1044.google.com (mail-pj1-x1044.google.com [IPv6:2607:f8b0:4864:20::1044]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 221F5C05BD09 for ; Thu, 7 May 2020 17:27:52 -0700 (PDT) Received: by mail-pj1-x1044.google.com with SMTP id q24so3416877pjd.1 for ; Thu, 07 May 2020 17:27:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id; bh=V0C3bRiQIupjvnAB404TNg3msK2myuQCmZ2x7HRHG2I=; b=Jj5o2Eh+WgC06ImxPAdAiLKa43hIVr2SX7PjM5ta2/GY9A8rSs1GqK+RFCHZ9xbE0u Oj6CkcxAK/e5keveJNLW6FVl+GLxByi6cVM3Q1SDB3TlG+bD9rIluZ8RJ8OnPVjk1+MN Fn8EaOsdeA5cq27MGG/osiw6jB4oxDEZ8o+xM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=V0C3bRiQIupjvnAB404TNg3msK2myuQCmZ2x7HRHG2I=; b=MsNfnGZaYbfiDKHPcRasWPP2RMVIaWKgzsiTLEUwk8nTXrU7i5Yg5LYOwa+wtlay1i ZDKmCpnotgfysgUIxG7+T1+cPGxywHlF3x8/6yzzUOVfqf21wO5YwqettFpkXZPH/kjR O7hKZtmNigyks4+RaU36qO6Xr6WCA+XB6xlM8pLyJrkR1+5jMTcF8ySjvLHhpiFEXJHr Yx42v15cM8rEt83rwVvEIafrAScINKT+ri4DOflNF7ZUFKNPJin2FykoKrJ1jZPhQxDr bGIgGd49WYt29pt4vqUV26UfmIb6dURzl8e9DYNkWO2oQI0AIbIVs75ZRRF81vll3eC0 hFlA== X-Gm-Message-State: AGi0PuY7KiDqygLZtlaa9uDGBUCXlwPqfLa9CoNEOqZl8A2xN2llAeAA vnv3zDJSIAHrz3lFHCIA8BHohg== X-Google-Smtp-Source: APiQypIrISlpFBZ5rGaJiOwmwZHu5iw0N4E5PXxBU6UMHNreuj28ULfxOutLAPlluYPOfVW3wU/lww== X-Received: by 2002:a17:90a:3b0c:: with SMTP id d12mr2871289pjc.78.1588897671362; Thu, 07 May 2020 17:27:51 -0700 (PDT) Received: from lbrmn-lnxub113.broadcom.net ([192.19.228.250]) by smtp.gmail.com with ESMTPSA id gz14sm882677pjb.42.2020.05.07.17.27.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 May 2020 17:27:50 -0700 (PDT) From: Scott Branden To: Luis Chamberlain , Greg Kroah-Hartman , David Brown , Alexander Viro , Shuah Khan , bjorn.andersson@linaro.org, Shuah Khan , Arnd Bergmann Cc: "Rafael J . Wysocki" , linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-fsdevel@vger.kernel.org, BCM Kernel Feedback , Olof Johansson , Andrew Morton , Dan Carpenter , Colin Ian King , Kees Cook , Takashi Iwai , linux-kselftest@vger.kernel.org, Andy Gross , Scott Branden Subject: [PATCH v5 0/7] firmware: add partial read support in request_firmware_into_buf Date: Thu, 7 May 2020 17:27:32 -0700 Message-Id: <20200508002739.19360-1-scott.branden@broadcom.com> X-Mailer: git-send-email 2.17.1 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Please consider this version series ready for upstream acceptance. This patch series adds partial read support in request_firmware_into_buf. In order to accept the enhanced API it has been requested that kernel selftests and upstreamed driver utilize the API enhancement and so are included in this patch series. Also in this patch series is the addition of a new Broadcom VK driver utilizing the new request_firmware_into_buf enhanced API. Changes from v4: - handle reset issues if card crashes - allow driver to have min required msix - add card utilization information Changes from v3: - fix sparse warnings - fix printf format specifiers for size_t - fix 32-bit cross-compiling reports 32-bit shifts - use readl/writel,_relaxed to access pci ioremap memory, removed memory barriers and volatile keyword with such change - driver optimizations for interrupt/poll functionalities Changes from v2: - remove unnecessary code and mutex locks in lib/test_firmware.c - remove VK_IOCTL_ACCESS_BAR support from driver and use pci sysfs instead - remove bitfields - remove Kconfig default m - adjust formatting and some naming based on feedback - fix error handling conditions - use appropriate return codes - use memcpy_toio instead of direct access to PCIE bar Scott Branden (7): fs: introduce kernel_pread_file* support firmware: add offset to request_firmware_into_buf test_firmware: add partial read support for request_firmware_into_buf firmware: test partial file reads of request_firmware_into_buf bcm-vk: add bcm_vk UAPI misc: bcm-vk: add Broadcom VK driver MAINTAINERS: bcm-vk: add maintainer for Broadcom VK Driver MAINTAINERS | 7 + drivers/base/firmware_loader/firmware.h | 5 + drivers/base/firmware_loader/main.c | 52 +- drivers/misc/Kconfig | 1 + drivers/misc/Makefile | 1 + drivers/misc/bcm-vk/Kconfig | 29 + drivers/misc/bcm-vk/Makefile | 12 + drivers/misc/bcm-vk/bcm_vk.h | 435 +++++ drivers/misc/bcm-vk/bcm_vk_dev.c | 1256 +++++++++++++++ drivers/misc/bcm-vk/bcm_vk_legacy.c | 89 + drivers/misc/bcm-vk/bcm_vk_msg.c | 1425 +++++++++++++++++ drivers/misc/bcm-vk/bcm_vk_msg.h | 196 +++ drivers/misc/bcm-vk/bcm_vk_sg.c | 271 ++++ drivers/misc/bcm-vk/bcm_vk_sg.h | 60 + drivers/misc/bcm-vk/bcm_vk_tty.c | 352 ++++ drivers/soc/qcom/mdt_loader.c | 7 +- fs/exec.c | 96 +- include/linux/firmware.h | 8 +- include/linux/fs.h | 20 + include/uapi/linux/misc/bcm_vk.h | 99 ++ lib/test_firmware.c | 144 +- .../selftests/firmware/fw_filesystem.sh | 80 + 22 files changed, 4596 insertions(+), 49 deletions(-) create mode 100644 drivers/misc/bcm-vk/Kconfig create mode 100644 drivers/misc/bcm-vk/Makefile create mode 100644 drivers/misc/bcm-vk/bcm_vk.h create mode 100644 drivers/misc/bcm-vk/bcm_vk_dev.c create mode 100644 drivers/misc/bcm-vk/bcm_vk_legacy.c create mode 100644 drivers/misc/bcm-vk/bcm_vk_msg.c create mode 100644 drivers/misc/bcm-vk/bcm_vk_msg.h create mode 100644 drivers/misc/bcm-vk/bcm_vk_sg.c create mode 100644 drivers/misc/bcm-vk/bcm_vk_sg.h create mode 100644 drivers/misc/bcm-vk/bcm_vk_tty.c create mode 100644 include/uapi/linux/misc/bcm_vk.h