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2021-04-09staging: rtl8188eu: remove a dead assignmentMartin Kaiser
There's no need to set cmd_hdl to NULL after it's used. It will be set again before the next command is processed. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-11-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: remove duplicate if statementMartin Kaiser
There's two identical checks if the device was stopped or unplugged. Remove one of them. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-10-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: always free cmd_obj in the cmd threadMartin Kaiser
The rtl8188 driver starts a command thread that reads commands from a queue and processes them. Each command consists of a struct cmd_obj. The command thread may call a function to process the current command and optionally a post-processing function. Eventually, the command's cmd_obj must be freed. At the moment, if there's a post-processing function for the current command, this function has to free the cmd_obj. If there's no post-processing function, the command thread frees cmd_obj. It's much simpler if we always leave it to the command thread to free cmd_obj. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-9-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: move another static array from .h to .cMartin Kaiser
Move the declaration of the rtw_cmd_callback array from rtw_cmd.h to rtw_cmd.c. The _RTW_CMD_C_ symbol is now obsolete and can be removed. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-8-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: move static array from .h to .cMartin Kaiser
Declaring a static array in a header file is likely to cause name conflicts if the declaration is pulled in multiple times. The rtl8188 driver protects the declaration of the wlancmds array in rtw_mlme_ext.h with ifdef _RTW_CMD_C_, which is defined only in rtw_cmd.c. It makes more sense to declare the array in the .c file. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-7-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: remove a constant variableMartin Kaiser
enqueue is always 0. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-6-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: remove unused function parameterMartin Kaiser
The struct adapter parameter of rtw_os_recvbuf_resource_alloc is not used. Remove it. While at it, use the same parameter name in the prototype and the function definition. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-5-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: replace switch-case with ifMartin Kaiser
This switch has only one case. Replace it with an if statement. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-4-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: make ffaddr2pipehdl staticMartin Kaiser
This function is used only inside usb_ops_linux.c. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-3-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: remove prototype for non-existing functionMartin Kaiser
There's no usb_read_port_cancel function in this driver. Remove its prototype. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-2-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8188eu: remove the last urb callback macrosMartin Kaiser
Both usb_read_port_complete and usb_write_port_complete have a regs parameter that is not used. When this parameter is removed, the functions can be used as urb completion callbacks directly. There's no need for the macros that strip the second parameter. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Link: https://lore.kernel.org/r/20210408195601.4762-1-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: comedi: cb_pcidas64: remove useless functionJiapeng Chong
Fix the following gcc warning: drivers/staging/comedi/drivers/cb_pcidas64.c:232:19: warning: unused function 'analog_trig_low_threshold_bits' [-Wunused-function]. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/1617949425-105420-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8712: fix wrong function outputSergei Krainov
Return NULL from r8712_find_network() if no matched wlan_network was found. Code with a bug: while (plist != phead) { pnetwork = container_of(plist, struct wlan_network, list); plist = plist->next; if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN)) break; } spin_unlock_irqrestore(&scanned_queue->lock, irqL); return pnetwork; In this code last processed pnetwork returned if list end was reached and no pnetwork matched test condition. Signed-off-by: Sergei Krainov <sergei.krainov.lkd@gmail.com> Link: https://lore.kernel.org/r/20210409124611.GA3981@test-VirtualBox Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8723bs: remove unused variable pwrctlPu Lehui
GCC reports the following warning with W=1: drivers/staging/rtl8723bs/hal/rtl8723b_cmd.c:532:23: warning: variable 'pwrctl' set but not used [-Wunused-but-set-variable] 532 | struct pwrctrl_priv *pwrctl; | ^~~~~~ This variable is not used so remove it to fix the warning. Signed-off-by: Pu Lehui <pulehui@huawei.com> Link: https://lore.kernel.org/r/20210409045728.125852-1-pulehui@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8723bs: Remove unnecessary codeMuhammad Usama Anjum
The same code is executed when the condition "!show_errors" is true or false. Remove the if condition from here. The original intension of this condition was to not to report any error logs if condition was true. But this driver doesn't has those logs added. So this if condition can be removed. Signed-off-by: Muhammad Usama Anjum <musamaanjum@gmail.com> Addresses-Coverity: ("Same code execution") Link: https://lore.kernel.org/r/20210408204457.GA3079308@LEGION Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8712: remove (most of) enum WIFI_FRAME_TYPEChristophe JAILLET
The values defined in enum WIFI_FRAME_TYPE are the same the #define IEEE80211_FTYPE_xxx from <linux/ieee80211.h> Use these values to avoid code duplication. WIFI_QOS_DATA_TYPE is a bit more tricky and doesn't have a direct equivalence in <linux/ieee80211.h>. So leave this one as-is for now. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/e009a4ee6429a3f79742f9a912e3f6a650fb33ed.1617911201.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8712: remove enum WIFI_FRAME_SUBTYPEChristophe JAILLET
The values defined in enum WIFI_FRAME_SUBTYPE are the same the #define IEEE80211_STYPE_xxx from <linux/ieee80211.h> Use theses values to avoid code duplication. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/5a6fdcf0b5eb43c3d5511b5badd60bfac9389628.1617911201.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8712: remove struct rtl_ieee80211_ht_cap and ieee80211_ht_addt_infoChristophe JAILLET
struct 'ieee80211_ht_addt_info' is unused and can be removed. struct 'rtl_ieee80211_ht_cap' can be replaced by 'ieee80211_ht_cap' defined in <linux/ieee80211.h> which has the same layout. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/4291cb10744457cc12c89fc9fd414c37d732bc9d.1617911201.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8723bs: remove unused including <linux/version.h>Tian Tao
Remove including <linux/version.h> that don't need it. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Zhiqi Song <songzhiqi1@huawei.com> Link: https://lore.kernel.org/r/1617869845-43046-1-git-send-email-tiantao6@hisilicon.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: rtl8712: add spaces around '+'Mitali Borkar
Added spaces around '+' to improve readability and adhere to linux kernel coding style. Reported by checkpatch Signed-off-by: Mitali Borkar <mitaliborkar810@gmail.com> Link: https://lore.kernel.org/r/YG7uLQLGmAh97xB1@kali Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09percpu: make pcpu_nr_empty_pop_pages per chunk typeRoman Gushchin
nr_empty_pop_pages is used to guarantee that there are some free populated pages to satisfy atomic allocations. Accounted and non-accounted allocations are using separate sets of chunks, so both need to have a surplus of empty pages. This commit makes pcpu_nr_empty_pop_pages and the corresponding logic per chunk type. [Dennis] This issue came up as I was reviewing [1] and realized I missed this. Simultaneously, it was reported btrfs was seeing failed atomic allocations in fsstress tests [2] and [3]. [1] https://lore.kernel.org/linux-mm/20210324190626.564297-1-guro@fb.com/ [2] https://lore.kernel.org/linux-mm/20210401185158.3275.409509F4@e16-tech.com/ [3] https://lore.kernel.org/linux-mm/CAL3q7H5RNBjCi708GH7jnczAOe0BLnacT9C+OBgA-Dx9jhB6SQ@mail.gmail.com/ Fixes: 3c7be18ac9a0 ("mm: memcg/percpu: account percpu memory to memory cgroups") Cc: stable@vger.kernel.org # 5.9+ Signed-off-by: Roman Gushchin <guro@fb.com> Tested-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Dennis Zhou <dennis@kernel.org>
2021-04-09bus: mhi: fix typo in comments for struct mhi_channel_configJarvis Jiang
The word 'rung' is a typo in below comment, fix it. * @event_ring: The event rung index that services this channel Signed-off-by: Jarvis Jiang <jarvis.w.jiang@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20210408100220.3853-1-jarvis.w.jiang@gmail.com Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2021-04-09staging: comedi: Kconfig: Fix COMEDI_TESTS_NI_ROUTES selectionsIan Abbott
The COMEDI_TESTS_NI_ROUTES option currently selects NI_ROUTING, which doesn't exist. It should be selecting COMEDI_NI_ROUTING. Fix it. Selecting COMEDI_TESTS_NI_ROUTES without COMEDI_NI_ROUTING resulted in the following build errors: ERROR: modpost: "ni_lookup_route_register" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_is_cmd_dest" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_find_route_source" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_get_valid_routes" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_count_valid_routes" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_sort_device_routes" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_assign_device_routes" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_find_route_set" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_route_set_has_source" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_route_to_register" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! Reported-by: kernel test robot <lkp@intel.com> Fixes: c82b130616e3 ("staging: comedi: Add Kconfig options to build unit test modules") Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210409110844.148378-1-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09x86/traps: Correct exc_general_protection() and math_error() return pathsThomas Tai
Commit 334872a09198 ("x86/traps: Attempt to fixup exceptions in vDSO before signaling") added return statements which bypass calling cond_local_irq_disable(). According to ca4c6a9858c2 ("x86/traps: Make interrupt enable/disable symmetric in C code"), cond_local_irq_disable() is needed because the asm return code no longer disables interrupts. Follow the existing code as an example to use "goto exit" instead of "return" statement. [ bp: Massage commit message. ] Fixes: 334872a09198 ("x86/traps: Attempt to fixup exceptions in vDSO before signaling") Signed-off-by: Thomas Tai <thomas.tai@oracle.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Link: https://lkml.kernel.org/r/1617902914-83245-1-git-send-email-thomas.tai@oracle.com
2021-04-09habanalabs: print f/w boot unknown errorOded Gabbay
We need to print a message to the kernel log in case we encounter an unknown error in the f/w boot to help the user understand what happened. In addition, we shouldn't print unknown error in case of known errors. Moreover, in case of warnings/info, we shouldn't return -EIO that will fail the initialization and mark the device as disabled Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: update to latest F/W communication headerOhad Sharabi
update files to latest version from F/W team. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: skip iATU if F/W security is enabledOfir Bitton
As part of the securing GAUDI, the F/W will configure the PCI iATU regions. If the driver identifies a secured PCI ID, it will know to skip iATU configuration in a very early stage. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: derive security status from pci idOfir Bitton
As F/ security indication must be available before driver approaches PCI bus, F/W security should be derived from PCI id rather than be fetched during boot handshake with F/W. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: move dram scrub to free sequenceBharat Jauhari
DRAM scrubbing can take time hence it adds to latency during allocation. To minimize latency during initialization, scrubbing is moved to release call. In case scrubbing fails it means the device is in a bad state, hence HARD reset is initiated. Signed-off-by: Bharat Jauhari <bjauhari@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: send dynamic msi-x indexes to f/wOhad Sharabi
In order to minimize hard coded values between F/W and the driver, we send msi-x indexes dynamically to the F/W. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: clear QM errors only if not in stop_on_err modeTomer Tayar
Clearing QM errors by the driver will prevent these H/W blocks from stopping in case they are configured to stop on errors, so perform this clearing only if this mode is not in use. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: support DEVICE_UNUSABLE error indication from FWKoby Elbaz
In case of multiple ECC errors, FW will set the DEVICE_UNUSABLE bit. On boot-up, the driver will therefore fail inserting the device. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: use strscpy instead of sprintf and strlcpyOded Gabbay
Prefer the use of strscpy when copying the ASIC name into a char array, to prevent accidentally exceeding the array's length. In addition, strlcpy is frowned upon so replace it. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: remove the store jobs array from CS IOCTLOded Gabbay
The store part was never implemented in the code and never been used by the userspace applications. We currently use the related parameters to a different purpose with a defined union. However, there is no point in that and it is better to just remove the union and the store parameters. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: add debugfs to DMA from the deviceOded Gabbay
When trying to debug program, the user often needs to dump large parts of the device's DRAM, which can reach to tens of GBs. Because reading from the device's internal memory through the PCI BAR is extremely slow, the debug can take hours. Instead, we can provide the user to copy data through one of the DMA engines. This will make the operation much faster. Currently, only GAUDI is supported. In GAUDI, we need to find a PCI DMA engine that is IDLE and set the DMA as secured to be able to bypass our MMU as we currently don't map the temporary buffer to the MMU. Example bash one-line to dump entire HBM to file (~2 minutes): for (( i=0x0; i < 0x800000000; i+=0x8000000 )); do \ printf '0x%x\n' $i | sudo tee /sys/kernel/debug/habanalabs/hl0/addr ; \ echo 0x8000000 | sudo tee /sys/kernel/debug/habanalabs/hl0/dma_size ; \ sudo cat /sys/kernel/debug/habanalabs/hl0/data_dma >> hbm.txt ; done Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: sync stream add protection to SOB reset flowfarah kassabri
Since we moved the SOB reset flow to workqueue and not part of the fence release flow, we might reach a scenario where new context is created while we in the middle of resetting the SOB. in such cases the reset may fail due to idle check. This will mess up the streams sync since the SOB value is invalid. so we protect this area with a mutex, to delay context creation. Signed-off-by: farah kassabri <fkassabri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: add custom timeout flag per csAlon Mizrahi
There is a need to allow to user to send command submissions with custom timeout as some CS take longer than the max timeout that is used by default. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: improve utilization calculationKoby Elbaz
The new approach is based on the notion that the relative current power consumption is in relation of proportionality to device's true utilization. Utilization info ranges between [0,100]% Currently, dc_power values are hard-coded. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: support legacy and new pll indexesOhad Sharabi
In order to use minimum of hard coded values common to LKD and F/W a dynamic method to work with PLLs is introduced in this patch. Formerly asic specific PLL numbering is now common for all asics. To be backward compatible a bit in dev status is defined, if the bit is not set LKD will keep working with old PLL numbering. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: move relevant datapath work outside cs lockOfir Bitton
In order to shorten the time cs lock is being held, we move any possible work outside of the cs lock. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: avoid soft lockup bug upon mapping errorfarah kassabri
Add a little sleep between page unmappings in case mapping of large number of host pages failed, in order to avoid soft lockup bug during the rollback. Signed-off-by: farah kassabri <fkassabri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: Update async events headerOfir Bitton
Update with latest version from the Firmware team. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: unsecure TPC cfg status registersOfir Bitton
Unsecure relevant registers as TPC engine need access to TPC status. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: always use single-msi modeOded Gabbay
The device can get into deadlock in case it use indirect mode for MSI interrupts (multi-msi) and have hard-reset during interrupt storm. To prevent that, always use direct mode which means single-msi mode. The F/W will prevent the host from writing to the indirect MSI registers to prevent any malicious user from causing this scenario. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: reset device upon BMC requestOfir Bitton
In case the BMC of the devices' box wants to initiate a reset of a specific device, it must go through driver. Once driver will receive the request it will initiate a hard reset flow. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: debugfs access to user mapped host addressesOfir Bitton
In order to have a better debuggability we allow debugfs access to user mmu mapped host memory. Non-user host memory access will be rejected. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: Switch to using the new API kobj_to_dev()Yang Li
fixed the following coccicheck: ./drivers/misc/habanalabs/common/sysfs.c:347:60-61: WARNING opportunity for kobj_to_dev() Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: update hl_boot_if.hOhad Sharabi
Update to the latest version of the file as supplied by the F/W. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: skip DISABLE PCI packet to FW on heartbeatOhad Sharabi
if reset is due to heartbeat, device CPU is no responsive in which case no point sending PCI disable message to it. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: replace GFP_ATOMIC with GFP_KERNELOfir Bitton
As there are incorrect assumptions in which some of the initialization and data path flows cannot sleep, most allocations are being done using GFP_ATOMIC. We modify the code to use GFP_ATOMIC only when realy needed, as sleepable flow should use GFP_KERNEL. In addition add a fallback to allocate memory using GFP_KERNEL, once ATOMIC allocation fails. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-12 22:45:52 +0000