diff options
author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-07-20 07:07:56 +0300 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-07-20 07:07:56 +0300 |
commit | c39f2d9db0fd81ea20bb5cce9b3f082ca63753e2 (patch) | |
tree | 8e80ed5601b4fb8880a2ca8e08802bc8b1f850bd /drivers/fpga | |
parent | Merge branch 'next' into for-linus (diff) | |
parent | Input: alps - fix a mismatch between a condition check and its comment (diff) | |
download | linux-dev-c39f2d9db0fd81ea20bb5cce9b3f082ca63753e2.tar.xz linux-dev-c39f2d9db0fd81ea20bb5cce9b3f082ca63753e2.zip |
Merge branch 'next' into for-linus
Prepare second round of input updates for 5.3 merge window.
Diffstat (limited to 'drivers/fpga')
-rw-r--r-- | drivers/fpga/Kconfig | 10 | ||||
-rw-r--r-- | drivers/fpga/Makefile | 1 | ||||
-rw-r--r-- | drivers/fpga/altera-cvp.c | 10 | ||||
-rw-r--r-- | drivers/fpga/altera-ps-spi.c | 5 | ||||
-rw-r--r-- | drivers/fpga/dfl-afu-dma-region.c | 4 | ||||
-rw-r--r-- | drivers/fpga/dfl.c | 22 | ||||
-rw-r--r-- | drivers/fpga/ice40-spi.c | 5 | ||||
-rw-r--r-- | drivers/fpga/stratix10-soc.c | 6 | ||||
-rw-r--r-- | drivers/fpga/ts73xx-fpga.c | 10 | ||||
-rw-r--r-- | drivers/fpga/xilinx-pr-decoupler.c | 10 | ||||
-rw-r--r-- | drivers/fpga/xilinx-spi.c | 5 | ||||
-rw-r--r-- | drivers/fpga/zynq-fpga.c | 10 | ||||
-rw-r--r-- | drivers/fpga/zynqmp-fpga.c | 159 |
13 files changed, 202 insertions, 55 deletions
diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig index c20445b867ae..8072c195d831 100644 --- a/drivers/fpga/Kconfig +++ b/drivers/fpga/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # FPGA framework configuration # @@ -204,4 +205,13 @@ config FPGA_DFL_PCI To compile this as a module, choose M here. +config FPGA_MGR_ZYNQMP_FPGA + tristate "Xilinx ZynqMP FPGA" + depends on ARCH_ZYNQMP || COMPILE_TEST + help + FPGA manager driver support for Xilinx ZynqMP FPGAs. + This driver uses the processor configuration port(PCAP) + to configure the programmable logic(PL) through PS + on ZynqMP SoC. + endif # FPGA diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile index c0dd4c82fbdb..312b9371742f 100644 --- a/drivers/fpga/Makefile +++ b/drivers/fpga/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_FPGA_MGR_STRATIX10_SOC) += stratix10-soc.o obj-$(CONFIG_FPGA_MGR_TS73XX) += ts73xx-fpga.o obj-$(CONFIG_FPGA_MGR_XILINX_SPI) += xilinx-spi.o obj-$(CONFIG_FPGA_MGR_ZYNQ_FPGA) += zynq-fpga.o +obj-$(CONFIG_FPGA_MGR_ZYNQMP_FPGA) += zynqmp-fpga.o obj-$(CONFIG_ALTERA_PR_IP_CORE) += altera-pr-ip-core.o obj-$(CONFIG_ALTERA_PR_IP_CORE_PLAT) += altera-pr-ip-core-plat.o diff --git a/drivers/fpga/altera-cvp.c b/drivers/fpga/altera-cvp.c index 35c3aa5792e2..770915fb97f9 100644 --- a/drivers/fpga/altera-cvp.c +++ b/drivers/fpga/altera-cvp.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * FPGA Manager Driver for Altera Arria/Cyclone/Stratix CvP * @@ -5,15 +6,6 @@ * * Anatolij Gustschin <agust@denx.de> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Manage Altera FPGA firmware using PCIe CvP. * Firmware must be in binary "rbf" format. */ diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c index 678d0115f840..a13f224303c6 100644 --- a/drivers/fpga/altera-ps-spi.c +++ b/drivers/fpga/altera-ps-spi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Altera Passive Serial SPI Driver * @@ -5,10 +6,6 @@ * * Joshua Clayton <stillcompiling@gmail.com> * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * * Manage Altera FPGA firmware that is loaded over SPI using the passive * serial configuration method. * Firmware must be in binary "rbf" format. diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c index e18a786fc943..dcd80b088c7b 100644 --- a/drivers/fpga/dfl-afu-dma-region.c +++ b/drivers/fpga/dfl-afu-dma-region.c @@ -102,7 +102,7 @@ static int afu_dma_pin_pages(struct dfl_feature_platform_data *pdata, goto unlock_vm; } - pinned = get_user_pages_fast(region->user_addr, npages, 1, + pinned = get_user_pages_fast(region->user_addr, npages, FOLL_WRITE, region->pages); if (pinned < 0) { ret = pinned; @@ -399,7 +399,7 @@ int afu_dma_map_region(struct dfl_feature_platform_data *pdata, region->pages[0], 0, region->length, DMA_BIDIRECTIONAL); - if (dma_mapping_error(&pdata->dev->dev, region->iova)) { + if (dma_mapping_error(dfl_fpga_pdata_to_parent(pdata), region->iova)) { dev_err(&pdata->dev->dev, "failed to map for dma\n"); ret = -EFAULT; goto unpin_pages; diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c index 2c09e502e721..4b66aaa32b5a 100644 --- a/drivers/fpga/dfl.c +++ b/drivers/fpga/dfl.c @@ -40,6 +40,13 @@ enum dfl_fpga_devt_type { DFL_FPGA_DEVT_MAX, }; +static struct lock_class_key dfl_pdata_keys[DFL_ID_MAX]; + +static const char *dfl_pdata_key_strings[DFL_ID_MAX] = { + "dfl-fme-pdata", + "dfl-port-pdata", +}; + /** * dfl_dev_info - dfl feature device information. * @name: name string of the feature platform device. @@ -315,7 +322,7 @@ static void dfl_chardev_uinit(void) for (i = 0; i < DFL_FPGA_DEVT_MAX; i++) if (MAJOR(dfl_chrdevs[i].devt)) { unregister_chrdev_region(dfl_chrdevs[i].devt, - MINORMASK); + MINORMASK + 1); dfl_chrdevs[i].devt = MKDEV(0, 0); } } @@ -325,8 +332,8 @@ static int dfl_chardev_init(void) int i, ret; for (i = 0; i < DFL_FPGA_DEVT_MAX; i++) { - ret = alloc_chrdev_region(&dfl_chrdevs[i].devt, 0, MINORMASK, - dfl_chrdevs[i].name); + ret = alloc_chrdev_region(&dfl_chrdevs[i].devt, 0, + MINORMASK + 1, dfl_chrdevs[i].name); if (ret) goto exit; } @@ -443,11 +450,16 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) struct platform_device *fdev = binfo->feature_dev; struct dfl_feature_platform_data *pdata; struct dfl_feature_info *finfo, *p; + enum dfl_id_type type; int ret, index = 0; if (!fdev) return 0; + type = feature_dev_id_type(fdev); + if (WARN_ON_ONCE(type >= DFL_ID_MAX)) + return -EINVAL; + /* * we do not need to care for the memory which is associated with * the platform device. After calling platform_device_unregister(), @@ -463,6 +475,8 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) pdata->num = binfo->feature_num; pdata->dfl_cdev = binfo->cdev; mutex_init(&pdata->lock); + lockdep_set_class_and_name(&pdata->lock, &dfl_pdata_keys[type], + dfl_pdata_key_strings[type]); /* * the count should be initialized to 0 to make sure @@ -497,7 +511,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo) ret = platform_device_add(binfo->feature_dev); if (!ret) { - if (feature_dev_id_type(binfo->feature_dev) == PORT_ID) + if (type == PORT_ID) dfl_fpga_cdev_add_port_dev(binfo->cdev, binfo->feature_dev); else diff --git a/drivers/fpga/ice40-spi.c b/drivers/fpga/ice40-spi.c index 6154661b8f76..56e112e14a10 100644 --- a/drivers/fpga/ice40-spi.c +++ b/drivers/fpga/ice40-spi.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * FPGA Manager Driver for Lattice iCE40. * * Copyright (c) 2016 Joel Holdsworth * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * * This driver adds support to the FPGA manager for configuring the SRAM of * Lattice iCE40 FPGAs through slave SPI. */ diff --git a/drivers/fpga/stratix10-soc.c b/drivers/fpga/stratix10-soc.c index 13851b3d1c56..215d33789c74 100644 --- a/drivers/fpga/stratix10-soc.c +++ b/drivers/fpga/stratix10-soc.c @@ -507,12 +507,16 @@ static int __init s10_init(void) if (!fw_np) return -ENODEV; + of_node_get(fw_np); np = of_find_matching_node(fw_np, s10_of_match); - if (!np) + if (!np) { + of_node_put(fw_np); return -ENODEV; + } of_node_put(np); ret = of_platform_populate(fw_np, s10_of_match, NULL, NULL); + of_node_put(fw_np); if (ret) return ret; diff --git a/drivers/fpga/ts73xx-fpga.c b/drivers/fpga/ts73xx-fpga.c index dc22a5842609..9a17fe98c1b0 100644 --- a/drivers/fpga/ts73xx-fpga.c +++ b/drivers/fpga/ts73xx-fpga.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Technologic Systems TS-73xx SBC FPGA loader * @@ -5,15 +6,6 @@ * * FPGA Manager Driver for the on-board Altera Cyclone II FPGA found on * TS-7300, heavily based on load_fpga.c in their vendor tree. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/delay.h> diff --git a/drivers/fpga/xilinx-pr-decoupler.c b/drivers/fpga/xilinx-pr-decoupler.c index 641036135207..af9b387c56d3 100644 --- a/drivers/fpga/xilinx-pr-decoupler.c +++ b/drivers/fpga/xilinx-pr-decoupler.c @@ -1,18 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2017, National Instruments Corp. * Copyright (c) 2017, Xilix Inc * * FPGA Bridge Driver for the Xilinx LogiCORE Partial Reconfiguration * Decoupler IP Core. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/clk.h> diff --git a/drivers/fpga/xilinx-spi.c b/drivers/fpga/xilinx-spi.c index 469486be20c4..272ee0c22822 100644 --- a/drivers/fpga/xilinx-spi.c +++ b/drivers/fpga/xilinx-spi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Xilinx Spartan6 Slave Serial SPI Driver * @@ -5,10 +6,6 @@ * * Anatolij Gustschin <agust@denx.de> * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * * Manage Xilinx FPGA firmware that is loaded over SPI using * the slave serial configuration interface. */ diff --git a/drivers/fpga/zynq-fpga.c b/drivers/fpga/zynq-fpga.c index 57b0e6775958..31ef38e38537 100644 --- a/drivers/fpga/zynq-fpga.c +++ b/drivers/fpga/zynq-fpga.c @@ -1,18 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2011-2015 Xilinx Inc. * Copyright (c) 2015, National Instruments Corp. * * FPGA Manager Driver for Xilinx Zynq, heavily based on xdevcfg driver * in their vendor tree. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/clk.h> diff --git a/drivers/fpga/zynqmp-fpga.c b/drivers/fpga/zynqmp-fpga.c new file mode 100644 index 000000000000..b8a88d21d038 --- /dev/null +++ b/drivers/fpga/zynqmp-fpga.c @@ -0,0 +1,159 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Xilinx, Inc. + */ + +#include <linux/dma-mapping.h> +#include <linux/fpga/fpga-mgr.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of_address.h> +#include <linux/string.h> +#include <linux/firmware/xlnx-zynqmp.h> + +/* Constant Definitions */ +#define IXR_FPGA_DONE_MASK BIT(3) + +/** + * struct zynqmp_fpga_priv - Private data structure + * @dev: Device data structure + * @flags: flags which is used to identify the bitfile type + */ +struct zynqmp_fpga_priv { + struct device *dev; + u32 flags; +}; + +static int zynqmp_fpga_ops_write_init(struct fpga_manager *mgr, + struct fpga_image_info *info, + const char *buf, size_t size) +{ + struct zynqmp_fpga_priv *priv; + + priv = mgr->priv; + priv->flags = info->flags; + + return 0; +} + +static int zynqmp_fpga_ops_write(struct fpga_manager *mgr, + const char *buf, size_t size) +{ + const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops(); + struct zynqmp_fpga_priv *priv; + dma_addr_t dma_addr; + u32 eemi_flags = 0; + char *kbuf; + int ret; + + if (IS_ERR_OR_NULL(eemi_ops) || !eemi_ops->fpga_load) + return -ENXIO; + + priv = mgr->priv; + + kbuf = dma_alloc_coherent(priv->dev, size, &dma_addr, GFP_KERNEL); + if (!kbuf) + return -ENOMEM; + + memcpy(kbuf, buf, size); + + wmb(); /* ensure all writes are done before initiate FW call */ + + if (priv->flags & FPGA_MGR_PARTIAL_RECONFIG) + eemi_flags |= XILINX_ZYNQMP_PM_FPGA_PARTIAL; + + ret = eemi_ops->fpga_load(dma_addr, size, eemi_flags); + + dma_free_coherent(priv->dev, size, kbuf, dma_addr); + + return ret; +} + +static int zynqmp_fpga_ops_write_complete(struct fpga_manager *mgr, + struct fpga_image_info *info) +{ + return 0; +} + +static enum fpga_mgr_states zynqmp_fpga_ops_state(struct fpga_manager *mgr) +{ + const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops(); + u32 status; + + if (IS_ERR_OR_NULL(eemi_ops) || !eemi_ops->fpga_get_status) + return FPGA_MGR_STATE_UNKNOWN; + + eemi_ops->fpga_get_status(&status); + if (status & IXR_FPGA_DONE_MASK) + return FPGA_MGR_STATE_OPERATING; + + return FPGA_MGR_STATE_UNKNOWN; +} + +static const struct fpga_manager_ops zynqmp_fpga_ops = { + .state = zynqmp_fpga_ops_state, + .write_init = zynqmp_fpga_ops_write_init, + .write = zynqmp_fpga_ops_write, + .write_complete = zynqmp_fpga_ops_write_complete, +}; + +static int zynqmp_fpga_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct zynqmp_fpga_priv *priv; + struct fpga_manager *mgr; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->dev = dev; + + mgr = devm_fpga_mgr_create(dev, "Xilinx ZynqMP FPGA Manager", + &zynqmp_fpga_ops, priv); + if (!mgr) + return -ENOMEM; + + platform_set_drvdata(pdev, mgr); + + ret = fpga_mgr_register(mgr); + if (ret) { + dev_err(dev, "unable to register FPGA manager"); + return ret; + } + + return 0; +} + +static int zynqmp_fpga_remove(struct platform_device *pdev) +{ + struct fpga_manager *mgr = platform_get_drvdata(pdev); + + fpga_mgr_unregister(mgr); + + return 0; +} + +static const struct of_device_id zynqmp_fpga_of_match[] = { + { .compatible = "xlnx,zynqmp-pcap-fpga", }, + {}, +}; + +MODULE_DEVICE_TABLE(of, zynqmp_fpga_of_match); + +static struct platform_driver zynqmp_fpga_driver = { + .probe = zynqmp_fpga_probe, + .remove = zynqmp_fpga_remove, + .driver = { + .name = "zynqmp_fpga_manager", + .of_match_table = of_match_ptr(zynqmp_fpga_of_match), + }, +}; + +module_platform_driver(zynqmp_fpga_driver); + +MODULE_AUTHOR("Nava kishore Manne <navam@xilinx.com>"); +MODULE_DESCRIPTION("Xilinx ZynqMp FPGA Manager"); +MODULE_LICENSE("GPL"); |