leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
b6862193ca
linux/drivers/fpga
History
Xu Yilun b6862193ca fpga: dfl: support multiple opens on feature device node. 
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 <hao.wu@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
2020-04-29 20:37:07 -07:00
..
altera-cvp.c fpga: altera-cvp: Add Stratix10 (V2) Support 2019-08-24 11:38:29 -07:00
altera-fpga2sdram.c fpga: bridge: add devm_fpga_bridge_create 2018-10-16 11:13:50 +02:00
altera-freeze-bridge.c fpga: bridge: add devm_fpga_bridge_create 2018-10-16 11:13:50 +02:00
altera-hps2fpga.c fpga: bridge: add devm_fpga_bridge_create 2018-10-16 11:13:50 +02:00
altera-pr-ip-core-plat.c fpga: altera-pr-ip: Make alt_pr_unregister function void 2019-07-24 14:11:52 -07:00
altera-pr-ip-core.c fpga: altera-pr-ip: Make alt_pr_unregister function void 2019-07-24 14:11:52 -07:00
altera-ps-spi.c fpga: altera-ps-spi: Fix getting of optional confd gpio 2019-08-18 17:40:02 -07:00
dfl-afu-dma-region.c mm: add account_locked_vm utility function 2019-07-16 19:23:25 -07:00
dfl-afu-error.c fpga: dfl: afu: add error reporting support. 2019-09-03 19:35:41 -07:00
dfl-afu-main.c fpga: dfl: support multiple opens on feature device node. 2020-04-29 20:37:07 -07:00
dfl-afu-region.c fpga: dfl: afu: add afu sub feature support 2018-07-15 13:55:47 +02:00
dfl-afu.h fpga: dfl: afu: add error reporting support. 2019-09-03 19:35:41 -07:00
dfl-fme-br.c fpga: bridge: add devm_fpga_bridge_create 2018-10-16 11:13:50 +02:00
dfl-fme-error.c fpga: dfl: fme: add global error reporting support 2019-09-03 19:35:41 -07:00
dfl-fme-main.c fpga: dfl: support multiple opens on feature device node. 2020-04-29 20:37:07 -07:00
dfl-fme-mgr.c fpga: dfl-fme-mgr: fix FME_PR_INTFC_ID register address. 2019-07-03 19:58:58 +02:00
dfl-fme-pr.c fpga: dfl: add id_table for dfl private feature driver 2019-08-05 18:01:24 +02:00
dfl-fme-pr.h fpga: dfl: fme: add partial reconfiguration sub feature support 2018-07-15 13:55:46 +02:00
dfl-fme-region.c fpga: dfl-fme-region: Use platform_get_drvdata() 2018-11-26 20:47:10 +01:00
dfl-fme.h fpga: dfl: fme: add global error reporting support 2019-09-03 19:35:41 -07:00
dfl-pci.c fpga: dfl: pci: enable SRIOV support. 2019-08-05 17:56:46 +02:00
dfl.c fpga: dfl: support multiple opens on feature device node. 2020-04-29 20:37:07 -07:00
dfl.h fpga: dfl: support multiple opens on feature device node. 2020-04-29 20:37:07 -07:00
fpga-bridge.c drivers: Introduce device lookup variants by of_node 2019-07-30 13:07:41 +02:00
fpga-mgr.c drivers: Introduce device lookup variants by of_node 2019-07-30 13:07:41 +02:00
fpga-region.c fpga: add devm_fpga_region_create 2018-10-16 11:13:50 +02:00
ice40-spi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
Kconfig fpga: dfl: fme: add thermal management support 2019-10-16 19:18:27 -07:00
machxo2-spi.c fpga: mgr: add devm_fpga_mgr_create 2018-10-16 11:13:50 +02:00
Makefile fpga: dfl: fme: add global error reporting support 2019-09-03 19:35:41 -07:00
of-fpga-region.c drivers: Add generic helper to match by of_node 2019-06-24 05:22:31 +02:00
socfpga-a10.c fpga: mgr: add devm_fpga_mgr_create 2018-10-16 11:13:50 +02:00
socfpga.c fpga: mgr: add devm_fpga_mgr_create 2018-10-16 11:13:50 +02:00
stratix10-soc.c fpga: stratix10-soc: fix use-after-free on s10_init() 2019-05-24 20:32:12 +02:00
ts73xx-fpga.c fpga: remove redundant dev_err message 2020-01-02 20:57:34 -08:00
xilinx-pr-decoupler.c fpga: xilinx-pr-decoupler: Remove clk_get error message for probe defer 2020-01-10 12:51:56 -08:00
xilinx-spi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
zynq-fpga.c fpga: Remove dev_err() usage after platform_get_irq() 2019-10-04 18:57:16 -07:00
zynqmp-fpga.c fpga: zynqmp-fpga: Correctly handle error pointer 2019-05-30 07:56:11 -07:00