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2020-04-29fpga: dfl: afu: support debug access to memory-mapped afu regionsDominic Chen1-0/+9
Allow debug access to memory-mapped regions using e.g. gdb. Signed-off-by: Dominic Chen <[email protected]> Acked-by: Wu Hao <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-04-29fpga: dfl.h: Replace zero-length array with flexible-array memberGustavo A. R. Silva1-1/+1
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-04-29fpga: stratix10-soc: add compatible property value for intel agilexRichard Gong1-1/+2
Add compatible property value so we can reuse FPGA manager driver on Intel Agilex SoC platform. Signed-off-by: Richard Gong <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-04-29fpga: machxo2-spi: Use new structure for SPI transfer delaysSergiu Cuciurean1-4/+8
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd272df6 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by: Sergiu Cuciurean <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-04-29fpga: ice40-spi: Use new structure for SPI transfer delaysSergiu Cuciurean1-2/+8
In a recent change to the SPI subsystem [1], a new `delay` struct was added to replace the `delay_usecs`. This change replaces the current `delay_usecs` with `delay` for this driver. The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure that both `delay_usecs` & `delay` are used (in this order to preserve backwards compatibility). [1] commit bebcfd272df6 ("spi: introduce `delay` field for `spi_transfer` + spi_transfer_delay_exec()") Signed-off-by: Sergiu Cuciurean <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-04-29fpga: dfl: support multiple opens on feature device node.Xu Yilun4-28/+67
Each DFL functional block, e.g. AFU (Accelerated Function Unit) and FME (FPGA Management Engine), could implement more than one function within its region, but current driver only allows one user application to access it by exclusive open on device node. So this is not convenient and flexible for userspace applications, as they have to combine lots of different functions into one single application. This patch removes the limitation here to allow multiple opens to each feature device node for AFU and FME from userspace applications. If user still needs exclusive access to these device node, O_EXCL flag must be issued together with open. Signed-off-by: Wu Hao <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-04-28fpga: dfl: fme: add performance reporting supportWu Hao6-1/+1030
This patch adds support for performance reporting private feature for FPGA Management Engine (FME). Now it supports several different performance counters, including 'basic', 'cache', 'fabric', 'vtd' and 'vtd_sip'. It allows user to use standard linux tools to access these performance counters. e.g. List all events by "perf list" perf list | grep fme dfl_fme0/cache_read_hit/ [Kernel PMU event] dfl_fme0/cache_read_miss/ [Kernel PMU event] ... dfl_fme0/fab_mmio_read/ [Kernel PMU event] dfl_fme0/fab_mmio_write/ [Kernel PMU event] ... dfl_fme0/fab_port_mmio_read,portid=?/ [Kernel PMU event] dfl_fme0/fab_port_mmio_write,portid=?/ [Kernel PMU event] ... dfl_fme0/vtd_port_devtlb_1g_fill,portid=?/ [Kernel PMU event] dfl_fme0/vtd_port_devtlb_2m_fill,portid=?/ [Kernel PMU event] ... dfl_fme0/vtd_sip_iotlb_1g_hit/ [Kernel PMU event] dfl_fme0/vtd_sip_iotlb_1g_miss/ [Kernel PMU event] ... dfl_fme0/clock [Kernel PMU event] ... e.g. check increased counter value after run one application using "perf stat" command. perf stat -e dfl_fme0/fab_mmio_read/,dfl_fme0/fab_mmio_write/ ./test Performance counter stats for './test': 1 dfl_fme0/fab_mmio_read/ 2 dfl_fme0/fab_mmio_write/ 1.009496520 seconds time elapsed Please note that fabric counters support both fab_* and fab_port_*, but actually they are sharing one set of performance counters in hardware. If user wants to monitor overall data events on fab_* then fab_port_* can't be supported at the same time, see example below: perf stat -e dfl_fme0/fab_mmio_read/,dfl_fme0/fab_port_mmio_write,portid=0/ Performance counter stats for 'system wide': 0 dfl_fme0/fab_mmio_read/ <not supported> dfl_fme0/fab_port_mmio_write,portid=0/ 2.141064085 seconds time elapsed Signed-off-by: Luwei Kang <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-04-28firmware: xilinx: Remove eemi ops for fpga related APIsRajan Vaja1-11/+3
Use direct function call instead of using eemi ops for fpga related APIs. Also remove eemi ops structure. Signed-off-by: Rajan Vaja <[email protected]> Signed-off-by: Jolly Shah <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-04-28firmware: fpga: replace the error codes with the standard onesRichard Gong1-15/+10
The Intel service layer driver has defined error codes for the specific services, which started from FPGA configuration then RSU (Remote Status Update). Intel service layer driver should define the standard error codes rather than keep adding more error codes for the new services. The standard error codes will be used by all the clients of Intel service layer driver. Replace FPGA and RSU specific error codes with Intel service layer’s Common error codes. Signed-off-by: Richard Gong <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-03-30fpga: dfl: pci: fix return value of cci_pci_sriov_configureXu Yilun1-2/+4
pci_driver.sriov_configure should return negative value on error and number of enabled VFs on success. But now the driver returns 0 on success. The sriov configure still works but will cause a warning message: XX VFs requested; only 0 enabled This patch changes the return value accordingly. Cc: [email protected] Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-03-30fpga: zynq: Remove clk_get error message for probe deferShubhrajyoti Datta1-1/+2
In probe, the driver checks for devm_clk_get return and print error message in the failing case. However for -EPROBE_DEFER this message is confusing so avoid it. The similar change was done also by commit 28910cee898c ("fpga: xilinx-pr-decoupler: Remove clk_get error message for probe defer") Signed-off-by: Shubhrajyoti Datta <[email protected]> Signed-off-by: Michal Simek <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-01-10fpga: xilinx-pr-decoupler: Remove clk_get error message for probe deferShubhrajyoti Datta1-1/+2
In probe, the driver checks for devm_clk_get return and print error message in the failing case. However for -EPROBE_DEFER this message is confusing so avoid it. Signed-off-by: Shubhrajyoti Datta <[email protected]> Signed-off-by: Michal Simek <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-01-02fpga: remove redundant dev_err messageDing Xiang1-3/+1
devm_ioremap_resource already contains error message, so remove the redundant dev_err message Signed-off-by: Ding Xiang <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-01-02fpga: dfl: afu: remove set but not used variable 'afu'yu kuai1-2/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/fpga/dfl-afu-main.c: In function ‘afu_dev_destroy’: drivers/fpga/dfl-afu-main.c:816:18: warning: variable ‘afu’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Acked-by: Wu Hao <[email protected]> Signed-off-by: yu kuai <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2020-01-02fpga: dfl: fme: remove set but not used variable 'fme'yu kuai1-2/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/fpga/dfl-fme-main.c: In function ‘fme_dev_destroy’: drivers/fpga/dfl-fme-main.c:678:18: warning: variable ‘fme’ set but not used [-Wunused-but-set-variable] It is never used and so can be removed. Acked-by: Wu Hao <[email protected]> Signed-off-by: yu kuai <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-10-16fpga: dfl: fme: add power management supportWu Hao1-0/+207
This patch adds support for power management private feature under FPGA Management Engine (FME). This private feature driver registers a hwmon for power (power1_input), thresholds information, e.g. (power1_max / crit / max_alarm / crit_alarm) and also read-only sysfs interfaces for other power management information. For configuration, user could write threshold values via above power1_max / crit sysfs interface under hwmon too. Signed-off-by: Luwei Kang <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Guenter Roeck <[email protected]> Reviewed-by: Moritz Fischer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-10-16fpga: dfl: fme: add thermal management supportWu Hao2-1/+179
This patch adds support to thermal management private feature for DFL FPGA Management Engine (FME). This private feature driver registers a hwmon for thermal/temperature monitoring (hwmon temp1_input). If hardware automatic throttling is supported by this hardware, then driver also exposes sysfs interfaces under hwmon for thresholds (temp1_max/ crit/ emergency), threshold alarms (temp1_max_alarm/ temp1_crit_alarm) and throttling policy (temp1_max_policy). Signed-off-by: Luwei Kang <[email protected]> Signed-off-by: Russ Weight <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Guenter Roeck <[email protected]> Reviewed-by: Moritz Fischer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-10-04fpga: Remove dev_err() usage after platform_get_irq()Stephen Boyd1-3/+1
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Moritz Fischer <[email protected]> Cc: [email protected] Cc: Greg Kroah-Hartman <[email protected]> Signed-off-by: Stephen Boyd <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-18Merge tag 'char-misc-5.4-rc1' of ↵Linus Torvalds15-172/+1621
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver pull request for 5.4-rc1. As has been happening in previous releases, more and more individual driver subsystem trees are ending up in here. Now if that is good or bad I can't tell, but hopefully it makes your life easier as it's more of an aggregation of trees together to one merge point for you. Anyway, lots of stuff in here: - habanalabs driver updates - thunderbolt driver updates - misc driver updates - coresight and intel_th hwtracing driver updates - fpga driver updates - extcon driver updates - some dma driver updates - char driver updates - android binder driver updates - nvmem driver updates - phy driver updates - parport driver fixes - pcmcia driver fix - uio driver updates - w1 driver updates - configfs fixes - other assorted driver updates All of these have been in linux-next for a long time with no reported issues" * tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits) misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation habanalabs: correctly cast variable to __le32 habanalabs: show correct id in error print habanalabs: stop using the acronym KMD habanalabs: display card name as sensors header habanalabs: add uapi to retrieve aggregate H/W events habanalabs: add uapi to retrieve device utilization habanalabs: Make the Coresight timestamp perpetual habanalabs: explicitly set the queue-id enumerated numbers habanalabs: print to kernel log when reset is finished habanalabs: replace __le32_to_cpu with le32_to_cpu habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64 habanalabs: Handle HW_IP_INFO if device disabled or in reset habanalabs: Expose devices after initialization is done habanalabs: improve security in Debug IOCTL habanalabs: use default structure for user input in Debug IOCTL habanalabs: Add descriptive name to PSOC app status register habanalabs: Add descriptive names to PSOC scratch-pad registers habanalabs: create two char devices per ASIC habanalabs: change device_setup_cdev() to be more generic ...
2019-09-17Merge tag 'leds-for-5.4-rc1' of ↵Linus Torvalds2-14/+2
git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED updates from Jacek Anaszewski: "In this cycle we've finally managed to contribute the patch set sorting out LED naming issues. Besides that there are many changes scattered among various LED class drivers and triggers. LED naming related improvements: - add new 'function' and 'color' fwnode properties and deprecate 'label' property which has been frequently abused for conveying vendor specific names that have been available in sysfs anyway - introduce a set of standard LED_FUNCTION* definitions - introduce a set of standard LED_COLOR_ID* definitions - add a new {devm_}led_classdev_register_ext() API with the capability of automatic LED name composition basing on the properties available in the passed fwnode; the function is backwards compatible in a sense that it uses 'label' data, if present in the fwnode, for creating LED name - add tools/leds/get_led_device_info.sh script for retrieving LED vendor, product and bus names, if applicable; it also performs basic validation of an LED name - update following drivers and their DT bindings to use the new LED registration API: - leds-an30259a, leds-gpio, leds-as3645a, leds-aat1290, leds-cr0014114, leds-lm3601x, leds-lm3692x, leds-lp8860, leds-lt3593, leds-sc27xx-blt Other LED class improvements: - replace {devm_}led_classdev_register() macros with inlines - allow to call led_classdev_unregister() unconditionally - switch to use fwnode instead of be stuck with OF one LED triggers improvements: - led-triggers: - fix dereferencing of null pointer - fix a memory leak bug - ledtrig-gpio: - GPIO 0 is valid Drop superseeded apu2/3 support from leds-apu since for apu2+ a newer, more complete driver exists, based on a generic driver for the AMD SOCs gpio-controller, supporting LEDs as well other devices: - drop profile field from priv data - drop iosize field from priv data - drop enum_apu_led_platform_types - drop superseeded apu2/3 led support - add pr_fmt prefix for better log output - fix error message on probing failure Other misc fixes and improvements to existing LED class drivers: - leds-ns2, leds-max77650: - add of_node_put() before return - leds-pwm, leds-is31fl32xx: - use struct_size() helper - leds-lm3697, leds-lm36274, leds-lm3532: - switch to use fwnode_property_count_uXX() - leds-lm3532: - fix brightness control for i2c mode - change the define for the fs current register - fixes for the driver for stability - add full scale current configuration - dt: Add property for full scale current. - avoid potentially unpaired regulator calls - move static keyword to the front of declarations - fix optional led-max-microamp prop error handling - leds-max77650: - add of_node_put() before return - add MODULE_ALIAS() - Switch to fwnode property API - leds-as3645a: - fix misuse of strlcpy - leds-netxbig: - add of_node_put() in netxbig_leds_get_of_pdata() - remove legacy board-file support - leds-is31fl319x: - simplify getting the adapter of a client - leds-ti-lmu-common: - fix coccinelle issue - move static keyword to the front of declaration - leds-syscon: - use resource managed variant of device register - leds-ktd2692: - fix a typo in the name of a constant - leds-lp5562: - allow firmware files up to the maximum length - leds-an30259a: - fix typo - leds-pca953x: - include the right header" * tag 'leds-for-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: (72 commits) leds: lm3532: Fix optional led-max-microamp prop error handling led: triggers: Fix dereferencing of null pointer leds: ti-lmu-common: Move static keyword to the front of declaration leds: lm3532: Move static keyword to the front of declarations leds: trigger: gpio: GPIO 0 is valid leds: pwm: Use struct_size() helper leds: is31fl32xx: Use struct_size() helper leds: ti-lmu-common: Fix coccinelle issue in TI LMU leds: lm3532: Avoid potentially unpaired regulator calls leds: syscon: Use resource managed variant of device register leds: Replace {devm_}led_classdev_register() macros with inlines leds: Allow to call led_classdev_unregister() unconditionally leds: lm3532: Add full scale current configuration dt: lm3532: Add property for full scale current. leds: lm3532: Fixes for the driver for stability leds: lm3532: Change the define for the fs current register leds: lm3532: Fix brightness control for i2c mode leds: Switch to use fwnode instead of be stuck with OF one leds: max77650: Switch to fwnode property API led: triggers: Fix a memory leak bug ...
2019-09-03fpga: dfl: fme: add global error reporting supportWu Hao4-3/+378
This patch adds support for global error reporting for FPGA Management Engine (FME), it introduces sysfs interfaces to report different error detected by the hardware, and allow user to clear errors or inject error for testing purpose. Signed-off-by: Luwei Kang <[email protected]> Signed-off-by: Ananda Ravuri <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Alan Tull <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-03fpga: dfl: afu: add STP (SignalTap) supportWu Hao1-0/+25
STP (SignalTap) is one of the private features under the port for debugging. This patch adds private feature driver support for it to allow userspace applications to mmap related mmio region and provide STP service. Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Moritz Fischer <[email protected]> Acked-by: Alan Tull <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-03fpga: dfl: afu: add error reporting support.Wu Hao4-0/+241
Error reporting is one important private feature, it reports error detected on port and accelerated function unit (AFU). It introduces several sysfs interfaces to allow userspace to check and clear errors detected by hardware. Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Alan Tull <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-03fpga: dfl: afu: expose __afu_port_enable/disable function.Wu Hao2-11/+19
As these two functions are used by other private features within the same driver module but different driver files. e.g. in error reporting private feature, it requires to clear errors when port is in reset. Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Moritz Fischer <[email protected]> Acked-by: Alan Tull <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-03fpga: dfl: afu: add userclock sysfs interfaces.Wu Hao2-1/+119
This patch introduces userclock sysfs interfaces for AFU, user could use these interfaces for clock setting to AFU. Please note that, this is only working for port header feature with revision 0, for later revisions, userclock setting is moved to a separated private feature, so one revision sysfs interface is exposed to userspace application for this purpose too. Signed-off-by: Ananda Ravuri <[email protected]> Signed-off-by: Russ Weight <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Alan Tull <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-03fpga: dfl: afu: convert platform_driver to use dev_groupsWu Hao1-33/+36
This patch takes advantage of driver core which helps to create and remove sysfs attribute files, so there is no need to register sysfs entries manually in dfl-afu platform river code. Signed-off-by: Wu Hao <[email protected]> Acked-by: Moritz Fischer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-03fpga: dfl: fme: convert platform_driver to use dev_groupsWu Hao1-27/+2
This patch takes advantage of driver core which helps to create and remove sysfs attribute files, so there is no need to register sysfs entries manually in dfl-fme platform river code. Signed-off-by: Wu Hao <[email protected]> Acked-by: Moritz Fischer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-03fpga: dfl: make init callback optionalWu Hao1-4/+6
This patch makes init callback of sub features optional. With this change, people don't need to prepare any empty init callback. Signed-off-by: Wu Hao <[email protected]> Acked-by: Moritz Fischer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-09-03Merge branch 'char-misc-next' of ↵Moritz Fischer9-41/+549
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into fpga-dfl-for-5.4
2019-09-02Merge 5.3-rc7 into char-misc-nextGreg Kroah-Hartman1-4/+7
We need the fixes in here as well for testing and merges Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-08-28Merge tag 'fpga-fixes-for-5.3' of ↵Greg Kroah-Hartman1-4/+7
git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-linus Moritz writes: FPGA Manager fixes for 5.3 A single fix for the altera-ps-spi driver that fixes the behavior when the driver receives -EPROBE_DEFER when trying to obtain a GPIO desc. Signed-off-by: Moritz Fischer <[email protected]> * tag 'fpga-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga: fpga: altera-ps-spi: Fix getting of optional confd gpio
2019-08-24fpga: altera-cvp: Add Stratix10 (V2) SupportThor Thayer2-17/+176
Add Stratix10 specific functions that use a credit mechanism to throttle data to the CvP FIFOs. Add a private structure with function pointers for V1 vs V2 functions. Signed-off-by: Thor Thayer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-08-24fpga: altera-cvp: Preparation for V2 parts.Thor Thayer1-26/+43
In preparation for adding newer V2 parts that use a FIFO, reorganize altera_cvp_chk_error() and change the write function to block based. V2 parts have a block size matching the FIFO while older V1 parts write a 32 bit word at a time. Signed-off-by: Thor Thayer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-08-24fpga: altera-cvp: Discover Vendor Specific offsetThor Thayer1-37/+58
Newer Intel FPGAs have different Vendor Specific offsets than legacy parts. Use PCI discovery to find the CvP registers. Since the register positions remain the same, change the hard coded address to a more flexible way of indexing registers from the offset. Adding new PCI read and write abstraction functions to handle the offset (altera_read_config_dword() and altera_write_config_dword()). Signed-off-by: Thor Thayer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-08-18fpga: altera-ps-spi: Fix getting of optional confd gpioPhil Reid1-4/+7
Currently the driver does not handle EPROBE_DEFER for the confd gpio. Use devm_gpiod_get_optional() instead of devm_gpiod_get() and return error codes from altera_ps_probe(). Fixes: 5692fae0742d ("fpga manager: Add altera-ps-spi driver for Altera FPGAs") Signed-off-by: Phil Reid <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-08-09Merge tag 'fpga-for-5.4' of ↵Greg Kroah-Hartman3-5/+6
git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga into char-misc-next Moritz writes: FPGA Manager changes for 5.4-rc1 Here is the first set of changes for the 5.4-rc1 merge window. They're all more or less cleanup patches: - Carlos' patch addresses a checkpatch warning - My first patch changes the return type of a function to align it with the fact that nothing checks the return value and it uncoditionally returned 0 anyways - My second patch somehow fell through the cracks before and cleans up the FPGA bridge bindings by consolidating them instead of repeating the same paragraph over and over again. All of these patches have been in the last few linux-next releases without issues. Signed-off-by: Moritz Fischer <[email protected]> * tag 'fpga-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga: dt-bindings: fpga: Consolidate bridge properties fpga: altera-pr-ip: Make alt_pr_unregister function void fpga: altera-cvp: Fix function definition argument
2019-08-05fpga: dfl: fme: add capability sysfs interfacesWu Hao1-0/+48
This patch adds 3 read-only sysfs interfaces for FPGA Management Engine (FME) block for capabilities including cache_size, fabric_version and socket_id. Signed-off-by: Luwei Kang <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Alan Tull <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-08-05fpga: dfl: make uinit callback optionalWu Hao1-1/+2
This patch makes uinit callback of sub features optional. With this change, people don't need to prepare any empty uinit callback. Signed-off-by: Wu Hao <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-08-05fpga: dfl: add id_table for dfl private feature driverWu Hao6-15/+59
This patch adds id_table for each dfl private feature driver, it allows to reuse same private feature driver to match and support multiple dfl private features. Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Moritz Fischer <[email protected]> Acked-by: Alan Tull <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-08-05fpga: dfl: afu: add AFU state related sysfs interfacesWu Hao2-0/+148
This patch introduces more sysfs interfaces for Accelerated Function Unit (AFU). These interfaces allow users to read current AFU Power State (APx), read / clear AFU Power (APx) events which are sticky to identify transient APx state, and manage AFU's LTR (latency tolerance reporting). Signed-off-by: Ananda Ravuri <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Alan Tull <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-08-05fpga: dfl: pci: enable SRIOV support.Wu Hao3-1/+120
This patch enables the standard sriov support. It allows user to enable SRIOV (and VFs), then user could pass through accelerators (VFs) into virtual machine or use VFs directly in host. Signed-off-by: Zhang Yi Z <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Alan Tull <[email protected]> Acked-by: Moritz Fischer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-08-05fpga: dfl: fme: add DFL_FPGA_FME_PORT_RELEASE/ASSIGN ioctl support.Wu Hao3-12/+153
In order to support virtualization usage via PCIe SRIOV, this patch adds two ioctls under FPGA Management Engine (FME) to release and assign back the port device. In order to safely turn Port from PF into VF and enable PCIe SRIOV, it requires user to invoke this PORT_RELEASE ioctl to release port firstly to remove userspace interfaces, and then configure the PF/VF access register in FME. After disable SRIOV, it requires user to invoke this PORT_ASSIGN ioctl to attach the port back to PF. Ioctl interfaces: * DFL_FPGA_FME_PORT_RELEASE Release platform device of given port, it deletes port platform device to remove related userspace interfaces on PF. After this function, then it's safe to configure PF/VF access mode to VF, and enable VFs via SRIOV. * DFL_FPGA_FME_PORT_ASSIGN Assign platform device of given port back to PF. After configure PF/VF access mode to PF, this ioctl adds port platform device back to re-enable related userspace interfaces on PF. Signed-off-by: Zhang Yi Z <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Wu Hao <[email protected]> Acked-by: Alan Tull <[email protected]> Acked-by: Moritz Fischer <[email protected]> Signed-off-by: Moritz Fischer <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-07-30drivers: Introduce device lookup variants by of_nodeSuzuki K Poulose2-14/+2
Introduce wrappers for {bus/driver/class}_find_device() to locate devices by its of_node. Cc: Maarten Lankhorst <[email protected]> Cc: Maxime Ripard <[email protected]> Cc: [email protected] Cc: David Airlie <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: [email protected] Cc: Florian Fainelli <[email protected]> Cc: Frank Rowand <[email protected]> Cc: Heiko Stuebner <[email protected]> Cc: Liam Girdwood <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: Mathieu Poirier <[email protected]> Cc: Rob Herring <[email protected]> Cc: Srinivas Kandagatla <[email protected]> Cc: Takashi Iwai <[email protected]> Cc: Alan Tull <[email protected]> Cc: [email protected] Cc: Peter Rosin <[email protected]> Cc: Florian Fainelli <[email protected]> Cc: Heiner Kallweit <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Andrew Lunn <[email protected]> Cc: Liam Girdwood <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Cc: Thor Thayer <[email protected]> Cc: Jiri Slaby <[email protected]> Cc: Andrew Lunn <[email protected]> Cc: Peter Rosin <[email protected]> Signed-off-by: Suzuki K Poulose <[email protected]> Acked-by: Lee Jones <[email protected]> Acked-by: Wolfram Sang <[email protected]> # I2C part Acked-by: Moritz Fischer <[email protected]> # For FPGA part Acked-by: Mark Brown <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-07-29Merge 5.3-rc2 into char-misc-nextGreg Kroah-Hartman1-0/+1
We want the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-07-25fpga: dfl: use driver core functions, not sysfs ones.Greg Kroah-Hartman2-9/+12
This is a driver, do not call "raw" sysfs functions, instead call driver core ones. Specifically convert the use of sysfs_create_files() and sysfs_remove_files() to use device_add_groups() and device_remove_groups() Cc: Wu Hao <[email protected]> Cc: Alan Tull <[email protected]> Cc: Moritz Fischer <[email protected]> Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-07-24fpga: altera-pr-ip: Make alt_pr_unregister function voidMoritz Fischer2-4/+4
Make alt_pr_unregister function void, since it always returns 0, and nothing would act on the value anyways. Signed-off-by: Moritz Fischer <[email protected]>
2019-07-24fpga: altera-cvp: Fix function definition argumentCarlos A Petry1-1/+2
Fix the following checkpatch warning: WARNING: function definition argument 'struct altera_cvp_conf *' Signed-off-by: Carlos A Petry <[email protected]> Signed-off-by: Moritz Fischer <[email protected]>
2019-07-24fpga-manager: altera-ps-spi: Fix build errorYueHaibing1-0/+1
If BITREVERSE is m and FPGA_MGR_ALTERA_PS_SPI is y, build fails: drivers/fpga/altera-ps-spi.o: In function `altera_ps_write': altera-ps-spi.c:(.text+0x4ec): undefined reference to `byte_rev_table' Select BITREVERSE to fix this. Reported-by: Hulk Robot <[email protected]> Fixes: fcfe18f885f6 ("fpga-manager: altera-ps-spi: use bitrev8x4") Signed-off-by: YueHaibing <[email protected]> Cc: stable <[email protected]> Acked-by: Moritz Fischer <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-07-16mm: add account_locked_vm utility functionDaniel Jordan1-49/+4
locked_vm accounting is done roughly the same way in five places, so unify them in a helper. Include the helper's caller in the debug print to distinguish between callsites. Error codes stay the same, so user-visible behavior does too. The one exception is that the -EPERM case in tce_account_locked_vm is removed because Alexey has never seen it triggered. [[email protected]: v3] Link: http://lkml.kernel.org/r/[email protected] [[email protected]: fix mm/util.c] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Daniel Jordan <[email protected]> Signed-off-by: Stephen Rothwell <[email protected]> Tested-by: Alexey Kardashevskiy <[email protected]> Acked-by: Alex Williamson <[email protected]> Cc: Alan Tull <[email protected]> Cc: Alex Williamson <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Christophe Leroy <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Jason Gunthorpe <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Moritz Fischer <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Steve Sistare <[email protected]> Cc: Wu Hao <[email protected]> Cc: Ira Weiny <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2019-07-12Merge tag 'driver-core-5.3-rc1' of ↵Linus Torvalds1-6/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core and debugfs updates from Greg KH: "Here is the "big" driver core and debugfs changes for 5.3-rc1 It's a lot of different patches, all across the tree due to some api changes and lots of debugfs cleanups. Other than the debugfs cleanups, in this set of changes we have: - bus iteration function cleanups - scripts/get_abi.pl tool to display and parse Documentation/ABI entries in a simple way - cleanups to Documenatation/ABI/ entries to make them parse easier due to typos and other minor things - default_attrs use for some ktype users - driver model documentation file conversions to .rst - compressed firmware file loading - deferred probe fixes All of these have been in linux-next for a while, with a bunch of merge issues that Stephen has been patient with me for" * tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits) debugfs: make error message a bit more verbose orangefs: fix build warning from debugfs cleanup patch ubifs: fix build warning after debugfs cleanup patch driver: core: Allow subsystems to continue deferring probe drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT arch_topology: Remove error messages on out-of-memory conditions lib: notifier-error-inject: no need to check return value of debugfs_create functions swiotlb: no need to check return value of debugfs_create functions ceph: no need to check return value of debugfs_create functions sunrpc: no need to check return value of debugfs_create functions ubifs: no need to check return value of debugfs_create functions orangefs: no need to check return value of debugfs_create functions nfsd: no need to check return value of debugfs_create functions lib: 842: no need to check return value of debugfs_create functions debugfs: provide pr_fmt() macro debugfs: log errors when something goes wrong drivers: s390/cio: Fix compilation warning about const qualifiers drivers: Add generic helper to match by of_node driver_find_device: Unify the match function with class_find_device() bus_find_device: Unify the match callback with class_find_device ...
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