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path: root/drivers/misc/bcm-vk/bcm_vk_dev.c
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2022-09-01misc: bcm_vk: Remove usage of deprecated functionsBreno Leitao1-3/+3
ida_simple_get() and ida_simple_remove() functions are deprecated now. These functions were replaced by ida_alloc() and ida_free() respectively. This patch modernize bcm_vk to use the replacement functions. Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://lore.kernel.org/r/20220812094717.4097179-1-leitao@debian.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-01misc: bcm-vk: Specify the minimum number of IRQ vecsBreno Leitao1-1/+1
During bcm_vk_probe(), pci_alloc_irq_vectors() is called passing the number of IRQ vectors as 1, but, later, check how many IRQ vectors it got, and fails if it is smaller than VK_MSIX_IRQ_MIN_REQ. The most appropriated way to do it is setting the 'min_vecs' param as VK_MSIX_IRQ_MIN_REQ, instead of one. pci_alloc_irq_vectors() should know the requirements when called. The test was done by just loading this module on a machine with a Valkyrie offload engine hardware. Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://lore.kernel.org/r/20220812094011.4064729-1-leitao@debian.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-18misc: bcm-vk: Remove viper from device id tableDesmond Yan1-1/+0
As bcm_vk driver is not the production driver for viper, remove its pci device id from table. Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Link: https://lore.kernel.org/r/20220302025340.25602-1-desmond.yan@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-01kernel.h: split out panic and oops helpersAndy Shevchenko1-0/+1
kernel.h is being used as a dump for all kinds of stuff for a long time. Here is the attempt to start cleaning it up by splitting out panic and oops helpers. There are several purposes of doing this: - dropping dependency in bug.h - dropping a loop by moving out panic_notifier.h - unload kernel.h from something which has its own domain At the same time convert users tree-wide to use new headers, although for the time being include new header back to kernel.h to avoid twisted indirected includes for existing users. [akpm@linux-foundation.org: thread_info.h needs limits.h] [andriy.shevchenko@linux.intel.com: ia64 fix] Link: https://lkml.kernel.org/r/20210520130557.55277-1-andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20210511074137.33666-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Co-developed-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Corey Minyard <cminyard@mvista.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Wei Liu <wei.liu@kernel.org> Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Helge Deller <deller@gmx.de> # parisc Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-02-04misc: bcm-vk: only support ttyVK if CONFIG_TTY is setScott Branden1-3/+2
Correct compile issue if CONFIG_TTY is not set by only adding ttyVK devices if CONFIG_BCM_VK_TTY is set. Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210203223826.21674-1-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-04misc: bcm-vk: Fix a couple error codes in probe()Dan Carpenter1-1/+3
These errors should return negative error codes instead of returning success. Fixes: 064ffc7c3939 ("misc: bcm-vk: add autoload support") Fixes: 522f692686a7 ("misc: bcm-vk: add Broadcom VK driver") Acked-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YBpyEbmz00rjvT9S@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add ttyVK supportScott Branden1-1/+29
Add ttyVK support to driver to allow console access to VK card from host. Device node will be in the follow form /dev/bcm-vk.x_ttyVKy where: x is the instance of the VK card y is the tty device number on the VK card Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-14-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add mmap function for exposing BAR2Scott Branden1-0/+24
Add mmap function that allows host application to open up BAR2 memory for remote spooling out messages from the VK logger. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-12-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: reset_pid supportScott Branden1-6/+152
Add reset support via ioctl. Kill user processes that are open when VK card is reset. If a particular PID has issued the reset request do not kill that process as it issued the ioctl. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-11-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add VK messaging supportScott Branden1-2/+307
Add message support in order to be able to communicate to VK card via message queues. This info is used for debug purposes via collection of logs via direct read of BAR space and by sysfs access (in a follow on commit). Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-10-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add get_card_info, peerlog_info, and proc_mon_infoScott Branden1-0/+105
Add support to get card_info (details about card), peerlog_info (to get details of peerlog on card), and proc_mon_info (process monitoring on card). This info is used for collection of logs via direct read of BAR space and by sysfs access (in a follow on commit). Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-9-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add ioctl load_imageScott Branden1-0/+95
Add ioctl support to issue load_image operation to VK card. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Co-developed-by: James Hu <james.hu@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: James Hu <james.hu@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-8-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add open/releaseScott Branden1-0/+23
Add open/release to replace private data with context for other methods to use. Reason for the context is because it is allowed for multiple sessions to open sysfs. For each file open, when upper layer queries the response, only those that are tied to a specified open should be returned. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-7-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add triggers when host panic or reboots to notify cardScott Branden1-1/+28
Pass down an interrupt to card in case of panic or reboot so that card can take appropriate action to perform a clean reset. Uses kernel notifier block either directly (register on panic list), or implicitly (add shutdown method for PCI device). Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-6-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add misc device to Broadcom VK driverScott Branden1-1/+35
Add misc device base support to create and remove devnode. Additional misc functions for open/read/write/release/ioctl/sysfs, etc will be added in follow on commits to allow for individual review. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-5-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add autoload supportScott Branden1-0/+723
Add support to load and boot images on card automatically. The kernel module parameter auto_load can be passed in as false to disable such support on probe. As well, nr_scratch_pages can be specified to allocate more or less scratch memory on init as needed for desired card operation. Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Co-developed-by: James Hu <james.hu@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: James Hu <james.hu@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-4-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-25misc: bcm-vk: add Broadcom VK driverScott Branden1-0/+141
Add initial version of Broadcom VK driver to enumerate PCI device IDs of Valkyrie and Viper device IDs. VK based cards provide real-time high performance, high throughput, low latency offload compute engine operations. They are used for multiple parallel offload tasks as: audio, video and image processing and crypto operations. Further commits add additional features to driver beyond probe/remove. Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-3-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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