- 04 Feb, 2021 8 commits
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Suzuki K Poulose authored
We are about to introduce support for sysreg access to ETMv4.4+ component. Since there are generic routines that access the registers (e.g, CS_LOCK/UNLOCK , claim/disclaim operations, timeout) and in order to preserve the logic of these operations at a single place we introduce an abstraction layer for the accesses to a given device. Link: https://lore.kernel.org/r/20210110224850.1880240-4-suzuki.poulose@arm.com Cc: Mike Leach <mike.leach@linaro.org> Signed-off-by:
Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by:
Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210201181351.1475223-6-mathieu.poirier@linaro.orgSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Suzuki K Poulose authored
When the ETM is affected by Qualcomm errata, modifying the TRCPDCR could cause the system hang. Even though this is taken care of during enable/disable ETM, the ETM state save/restore could still access the TRCPDCR. Make sure we skip the access during the save/restore. Found by code inspection. Link: https://lore.kernel.org/r/20210110224850.1880240-3-suzuki.poulose@arm.com Fixes: 02510a5a ("coresight: etm4x: Add support to skip trace unit power up") Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> Cc: Tingwei Zhang <tingwei@codeaurora.org> Tested-by:
Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> Reviewed-by:
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Suzuki K Poulose authored
TRCSSPCICR<n> is present only if all of the following are true: TRCIDR4.NUMSSCC > n. TRCIDR4.NUMPC > 0b0000 . TRCSSCSR<n>.PC == 0b1 Add a helper function to check all the conditions. Link: https://lore.kernel.org/r/20210110224850.1880240-2-suzuki.poulose@arm.com Cc: Mike Leach <mike.leach@linaro.org> Signed-off-by:
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Chunyan Zhang authored
Add AMBA UCI id to support Cortex-A55(Ananke) and Cortex-A75(Promethus). Reviewed by: Mike Leach <mike.leach@linaro.org> Link: https://lore.kernel.org/r/20210118065549.197489-1-zhang.lyra@gmail.comSigned-off-by:
Bin Ji <bin.ji@unisoc.com> Signed-off-by:
Chunyan Zhang <chunyan.zhang@unisoc.com> Signed-off-by:
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Markus Elfring authored
A local variable was used only within an else branch. Thus move the definition for the variable “cs_fwnode” into the corresponding code block. This issue was detected by using the Coccinelle software. Link: https://lore.kernel.org/r/c1b09b27-9012-324f-28d0-ba820dc468a5@web.deSigned-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
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Eric Biggers authored
The RNDRESEEDCRNG ioctl reseeds the primary_crng from itself, which doesn't make sense. Reseed it from the input_pool instead. Fixes: d848e5f8 ("random: add new ioctl RNDRESEEDCRNG") Cc: stable@vger.kernel.org Cc: linux-crypto@vger.kernel.org Cc: Andy Lutomirski <luto@kernel.org> Cc: Jann Horn <jannh@google.com> Cc: Theodore Ts'o <tytso@mit.edu> Reviewed-by:
Jann Horn <jannh@google.com> Acked-by:
Ard Biesheuvel <ardb@kernel.org> Signed-off-by:
Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20210112192818.69921-1-ebiggers@kernel.orgSigned-off-by:
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Joe Perches authored
Add newline terminations to the sysfs_emit uses added by -next commit 8d6da657 ("misc: pvpanic: introduce events device attribue") Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
zhenwei pi <pizhenwei@bytedance.com> Link: https://lore.kernel.org/r/13b1c892d52c27d4caeccc89506aadda74f61365.camel@perches.comSigned-off-by:
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Greg Kroah-Hartman authored
Merge tag 'misc-habanalabs-next-2021-01-27' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next Oded writes: This tag contains habanalabs driver changes for v5.12: - Add feature called "staged command submissions". In this feature, the driver allows the user to submit multiple command submissions that describe a single pass on the deep learning graph. The driver tracks the completion of the entire pass by the last stage CS. - Update code to support the latest firmware image - Optimizations and improvements to MMU code: - Support page size that is not power-of-2 - Make the locks scheme simpler - mmap areas in device configuration space to userspace - Security fixes: - Make ETR non-secured - Remove access to kernel memory through debug-fs interface - Remove access through PCI bar to SyncManager register block in Gaudi - Many small bug fixes * tag 'misc-habanalabs-next-2021-01-27' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (41 commits) habanalabs: update to latest hl_boot_if.h spec from F/W habanalabs/gaudi: unmask HBM interrupts after handling habanalabs: update SyncManager interrupt handling habanalabs: fix ETR security issue habanalabs: staged submission support habanalabs: modify device_idle interface habanalabs: add CS completion and timeout properties habanalabs: add new mem ioctl op for mapping hw blocks habanalabs: fix MMU debugfs related nodes habanalabs: add user available interrupt to hw_ip habanalabs: always try to use the hint address CREDITS: update email address and home address habanalabs: update email address in sysfs/debugfs docs habanalabs: add security violations dump to debugfs habanalabs: ignore F/W BMC errors in case no BMC present habanalabs/gaudi: print sync manager SEI interrupt info habanalabs: Use 'dma_set_mask_and_coherent()' habanalabs/gaudi: remove PCI access to SM block habanalabs: add driver support for internal cb scheduling habanalabs: increment ctx ref from within a cs allocation ...
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- 03 Feb, 2021 4 commits
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Scott Branden authored
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.comSigned-off-by:
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Dan Carpenter authored
These errors should return negative error codes instead of returning success. Fixes: 064ffc7c ("misc: bcm-vk: add autoload support") Fixes: 522f6926 ("misc: bcm-vk: add Broadcom VK driver") Acked-by:
Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YBpyEbmz00rjvT9S@mwandaSigned-off-by:
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Yang Li authored
This patch removes unneeded return variables, using only '0' instead. It fixes the following warning detected by coccinelle: ./drivers/misc/cardreader/rtsx_pcr.c:1808:5-8: Unneeded variable: "ret". Return "0" on line 1833. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/1612164640-84541-1-git-send-email-yang.lee@linux.alibaba.comSigned-off-by:
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Dan Carpenter authored
Unlock before returning on this error path. Fixes: 111d746b ("misc: bcm-vk: add VK messaging support") Acked-by:
Desmond Yan <desmond.yan@broadcom.com> Acked-by:
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- 29 Jan, 2021 9 commits
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Alexander Usyskin authored
Add Adler Lake LP device id. Cc: <stable@vger.kernel.org> Signed-off-by:
Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by:
Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-7-tomas.winkler@intel.comSigned-off-by:
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Alexander Usyskin authored
Add Adler Lake S device id. Cc: <stable@vger.kernel.org> Signed-off-by:
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Tomas Winkler authored
Add Emmitsburg workstation DID. Cc: <stable@vger.kernel.org> Signed-off-by:
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Alexander Usyskin authored
Ignore and drop HBM responses from init phase in shutdown phase. Fixes stall if driver starting to stop in the middle of link init. Signed-off-by:
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Alexander Usyskin authored
Use mei_set_devstate() wrapper upon hbm stop command response, to trigger sysfs event. Fixes: 43b8a7ed ("mei: expose device state in sysfs") Signed-off-by:
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Tomas Winkler authored
Document that mei_msg_hdr_init returns ERR_PTR. Signed-off-by:
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Alexander Usyskin authored
The size in header field for packet transferred over DMA includes size of the extended header. Include extended header in size check. Add size and sanity checks on extended header. Cc: <stable@vger.kernel.org> # v5.10+ Signed-off-by:
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Desmond Yan authored
Change set_q_num API to use if-else to make it more explicit, and avoid a precedence rule issue. Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
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Andy Shevchenko authored
Driver is gone, so is the documentation. Remove a leftover in documentation. Fixes: 8ba59e9d ("misc: pti: Remove driver for deprecated platform") Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210129112729.65363-1-andriy.shevchenko@linux.intel.comSigned-off-by:
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- 27 Jan, 2021 19 commits
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Oded Gabbay authored
It adds the definition for indication that the F/W handles HBM ECC events. Signed-off-by:Oded Gabbay <ogabbay@kernel.org>
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Oded Gabbay authored
As the driver does with all interrupts, we need to tell F/W to unmask the HBM interrupts after the driver handled them. Signed-off-by: -
Oded Gabbay authored
The firmware provides more information about SyncManager events. Adjust the code to the latest firmware interface file. Signed-off-by: -
Ohad Sharabi authored
ETR should always be non-secured as it is used by the users to record profiling/trace data. This patch fixes the configuration to match those requirements. Signed-off-by:
Ohad Sharabi <osharabi@habana.ai> Reviewed-by:
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Ofir Bitton authored
We introduce a new mechanism named Staged Submission. This mechanism allows the user to send a whole CS in pieces. Each CS will not require completion rather than the last CS. Timeout timer will be triggered upon reception of the first CS in group. Signed-off-by:
Ofir Bitton <obitton@habana.ai> Reviewed-by:
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Ohad Sharabi authored
Currently this API uses single 64 bits mask for engines idle indication. Recently, it was observed that more bits are needed for some ASICs. This patch modifies the use of the idle mask and the idle_extensions mask. Signed-off-by:
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Ofir Bitton authored
In order to support staged submission feature, we need to distinguish on which command submission we want to receive timeout and for which we want to receive completion. Signed-off-by:
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Ofir Bitton authored
For future ASIC support the driver allows user to map certain regions in the device's configuration space for direct access from userspace. Signed-off-by:
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farah kassabri authored
In mmu debugfs node show un-scrambled physical addresses. before read/write through data nodes, need to unscramble the physical address before using it for pci transaction. Signed-off-by:
farah kassabri <fkassabri@habana.ai> Reviewed-by:
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Ofir Bitton authored
In order to support completions that arrive directly to the user, the driver needs to supply the user with the first available msix interrupt available. Signed-off-by:
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farah kassabri authored
Currently hint address is ignored in case va block page size is not power of 2. We need to support th user hint address also in this case, but only if the hint address is aligned to page size. Signed-off-by:
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Oded Gabbay authored
Update my email address to kernel.org account and my home address to my new house. Signed-off-by: -
Oded Gabbay authored
Use my kernel.org address for contact point instead of my private email address. Signed-off-by: -
Ofir Bitton authored
In order to improve driver security debuggability, we add security violations dump to debugfs. Signed-off-by:
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Ofir Bitton authored
In order to support operation mode in which BMC is not active, driver must not take BMC errors into consideration. Signed-off-by:
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Ofir Bitton authored
Driver must print sync manager SEI information upon receiving interrupt from FW. Signed-off-by:
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Christophe JAILLET authored
Axe 'hl_pci_set_dma_mask()' and replace it with an equivalent 'dma_set_mask_and_coherent()' call. This makes the code a bit less verbose. It also removes an erroneous comment, because 'hl_pci_set_dma_mask()' does not try to use a fall-back value. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by:
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Ofir Bitton authored
Due to HW limitation we must remove all direct access to SM registers, in order to do that we will access SM registers using the HW QMANS. When possible and no user context is present, we can directly access the HW QMANS. Whenever there is an active user, driver will prepare a pending command buffer list which will be sent upon user submissions. Signed-off-by:
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Ofir Bitton authored
In order to support scnenarios in which driver needs access to HW components but it cannot access them directly, we add support for scheduling command buffers internally. These command buffers will be transmitted upon next user command submission context. Signed-off-by:
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