- 22 Sep, 2020 33 commits
-
-
Moti Haimovski authored
In the future we will have MMU v2 code, so we need to prepare the driver for it. The first step is to rename the current MMU file to mmu_v1.c. Signed-off-by:
Moti Haimovski <mhaimovski@habana.ai> Reviewed-by:
Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by:
-
Omer Shpigelman authored
Change the acquiring of a device virtual address for mapping by using the smallest possible alignment, rather than the biggest, depending on the page size used by the user for allocating the memory. This will lower the virtual space memory consumption. Signed-off-by:
Omer Shpigelman <oshpigelman@habana.ai> Reviewed-by:
-
Oded Gabbay authored
For consistency with GAUDI code, add check of the relevant flag in the device structure before resetting the GOYA device in case of firmware event. Reviewed-by:
Tomer Tayar <ttayar@habana.ai> Signed-off-by:
-
Oded Gabbay authored
For future ASICs, we increase this field by one nibble. This field was not used by the current ASICs so this change doesn't break anything. Signed-off-by: -
Ofir Bitton authored
Because the device CPU compiler aligns structures to 8 bytes, struct cpucp_info has an alignment issue as some parts in the structure are not aligned to 8 bytes. It is preferred that we explicitly insert placeholders inside the structure to avoid confusion in order to validate this scenario, we printed both pointers: __u8 cpucp_version[VERSION_MAX_LEN]; (0xffff899c67ed4cbc) __le64 dram_size; (0xffff899c67ed4d40) we see difference of 132 bytes although the first array is only 128 bytes long, Meaning compiler added a 4 byte padding. Signed-off-by:
Ofir Bitton <obitton@habana.ai> Reviewed-by:
-
Oded Gabbay authored
Cleanup the code. Signed-off-by: -
Oded Gabbay authored
Old function pointer that was left when the call to this function pointer was removed. Signed-off-by: -
Oded Gabbay authored
There were a couple of comments where the name ArmCP was still used. Rename it to CPU-CP. In addition, rename ArmCP or ARM in log messages to "device CPU". Signed-off-by: -
Oded Gabbay authored
There is a case where the user reaches the maximum number of CS in-flight. In that case, the driver rejects the new CS of the user with EAGAIN. Count that event so the user can query the driver later to see if it happened. Reviewed-by:
-
Hillf Danton authored
Add dma_mmap_coherent() for goya and gaudi to match their use of dma_alloc_coherent(), see the Link tag for why. Link: https://lore.kernel.org/lkml/20200609091727.GA23814@lst.de/ Cc: Christoph Hellwig <hch@lst.de> Cc: Zhang Li <li.zhang@bitmain.com> Cc: Ding Z Nan <oshack@hotmail.com> Signed-off-by:
Hillf Danton <hdanton@sina.com> Reviewed-by:
-
Oded Gabbay authored
The driver use vm_pgoff to hold the CB idr handle. Before we actually call the mapping function, we need to clear the handle so there won't be any garbage left in vm_pgoff. Signed-off-by: -
Oded Gabbay authored
Arrange the hl_mmap code to be more structured and expandable for the future. Add better defines that describe our usage of the vm_pgoff. Note that I shamelessly took the code and defines from the amdkfd driver (my previous driver). Signed-off-by: -
Oded Gabbay authored
When shifting a boolean variable by more than 31 bits and putting the result into a u64 variable, we need to cast the boolean into unsigned 64 bits to prevent possible overflow. Reported-by:
kernel test robot <lkp@intel.com> Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
-
Oded Gabbay authored
ArmCP mandates that the device CPU is always an ARM processor, which might be wrong in the future. Most of this change is an internal renaming of variables, functions and defines but there are two entries in sysfs which have armcp in their names. Add identical cpucp entries but don't remove yet the armcp entries. Those will be deprecated next year. Add the documentation about it in sysfs documentation. Signed-off-by:
-
Oded Gabbay authored
Add define for the 2 MME slave engines. Reviewed-by:
-
farah kassabri authored
Add driver implementation for reading the total energy consumption from the device ARM FW. Signed-off-by:
farah kassabri <fkassabri@habana.ai> Reviewed-by:
-
Tomer Tayar authored
Include linux/bitfield.h only in habanalabs.h, instead of in each and every file that needs it, as habanalabs.h is already included by all. Signed-off-by:
-
farah kassabri authored
change busy engines bitmask to 64 bits in order to represent more engines, needed for future ASIC support. Signed-off-by:
-
Oded Gabbay authored
Eliminate following warning: warning: Shifting signed 32-bit value by 31 bits is undefined behavior Reported-by:
-
Oded Gabbay authored
The driver waits for the TPC vector pipe to be empty before checking if the TPC kernel has finished executing, but the code doesn't validate that the pipe was indeed empty, it just wait for it without checking the return value. Reported-by:
-
Oded Gabbay authored
new_dma_pkt->ctl is assigned a value and then is reassigned a new value without the first value ever being used. Reported-by:
-
Oded Gabbay authored
Use the standard FIELD_PREP() macro instead of << operator to perform bitmask operations. This ensures type check safety and eliminate compiler warnings. Reported-by:
-
Oded Gabbay authored
Use the standard macros to define bitmasks. Reported-by:
-
Oded Gabbay authored
If both parts of if-else are goto statements, we can remove the else and put the else goto statement after the if statement. Reported-by:
-
Oded Gabbay authored
%u is used for unsigned so we need to cast the int variable to u32 to avoid compiler warning. Reported-by:
-
Oded Gabbay authored
Although the possible values for CB's ID are only 32 bits, there are a few places in the code where this field is shifted and passed into a function which expects 64 bits. Reported-by:
-
Dotan Barak authored
If there is a failure during the testing of a queue, to ease up debugging - print the queue id. Signed-off-by:
Dotan Barak <dbarak@habana.ai> Reviewed-by:
-
farah kassabri authored
Allow user application to write to this register in order to be able to configure the quiet period of the QMAN between grants. Signed-off-by:
-
Ofir Bitton authored
driver will now get notified upon any PCI error occurred and will respond according to the severity of the error. Signed-off-by:
-
Ofir Bitton authored
Although the driver defines the first user-available sync manager object and monitor in habanalabs.h, we would like to also expose this information via the INFO IOCTL so the runtime can get this information dynamically. This is because in future ASICs we won't need to define it statically. Signed-off-by:
-
Ofir Bitton authored
Update firmware header with new API for getting pcie info such as tx/rx throughput and replay counter. These counters are needed by customers for monitor and maintenance of multiple devices. Add new opcodes to the INFO ioctl to retrieve these counters. Signed-off-by:
-
Ofir Bitton authored
habanalabs driver uses dma-fence mechanism for synchronization. dma-fence mechanism was designed solely for GPUs, hence we purpose a simpler mechanism based on completions to replace current dma-fence objects. Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
-
Oded Gabbay authored
Future ASIC names are longer than 15 chars so increase the variable length to 32 chars. Signed-off-by:
-
- 17 Sep, 2020 7 commits
-
-
Lang Dai authored
uio_register_device() do two things. 1) get an uio id from a global pool, e.g. the id is <A> 2) create file nodes like /sys/class/uio/uio<A> uio_unregister_device() do two things. 1) free the uio id <A> and return it to the global pool 2) free the file node /sys/class/uio/uio<A> There is a situation is that one worker is calling uio_unregister_device(), and another worker is calling uio_register_device(). If the two workers are X and Y, they go as below sequence, 1) X free the uio id <AAA> 2) Y get an uio id <AAA> 3) Y create file node /sys/class/uio/uio<AAA> 4) X free the file note /sys/class/uio/uio<AAA> Then it will failed at the 3rd step and cause the phenomenon we saw as it is creating a duplicated file node. Failure reports as follows: sysfs: cannot create duplicate filename '/class/uio/uio10' Call Trace: sysfs_do_create_link_sd.isra.2+0x9e/0xb0 sysfs_create_link+0x25/0x40 device_add+0x2c4/0x640 __uio_register_device+0x1c5/0x576 [uio] adf_uio_init_bundle_dev+0x231/0x280 [intel_qat] adf_uio_register+0x1c0/0x340 [intel_qat] adf_dev_start+0x202/0x370 [intel_qat] adf_dev_start_async+0x40/0xa0 [intel_qat] process_one_work+0x14d/0x410 worker_thread+0x4b/0x460 kthread+0x105/0x140 ? process_one_work+0x410/0x410 ? kthread_bind+0x40/0x40 ret_from_fork+0x1f/0x40 Code: 85 c0 48 89 c3 74 12 b9 00 10 00 00 48 89 c2 31 f6 4c 89 ef e8 ec c4 ff ff 4c 89 e2 48 89 de 48 c7 c7 e8 b4 ee b4 e8 6a d4 d7 ff <0f> 0b 48 89 df e8 20 fa f3 ff 5b 41 5c 41 5d 5d c3 66 0f 1f 84 ---[ end trace a7531c1ed5269e84 ]--- c6xxvf b002:00:00.0: Failed to register UIO devices c6xxvf b002:00:00.0: Failed to register UIO devices Signed-off-by:
Lang Dai <lang.dai@intel.com> Link: https://lore.kernel.org/r/1600054002-17722-1-git-send-email-lang.dai@intel.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
Vadym Kochan authored
of_parse_phandle() returns device_node with incremented ref count which needs to be decremented by of_node_put() when device_node is not used. Fixes: e2a5402e ("nvmem: Add nvmem_device based consumer apis.") Signed-off-by:
Vadym Kochan <vadym.kochan@plvision.eu> Signed-off-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20200917134437.16637-5-srinivas.kandagatla@linaro.orgSigned-off-by:
-
Bartosz Golaszewski authored
We don't need to specify any ranges when allocating IDs so we can switch to ida_alloc() and ida_free() instead of the ida_simple_ counterparts. ida_simple_get(ida, 0, 0, gfp) is equivalent to ida_alloc_range(ida, 0, UINT_MAX, gfp) which is equivalent to ida_alloc(ida, gfp). Note: IDR will never actually allocate an ID larger than INT_MAX. Signed-off-by:
Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by:
-
Tian Tao authored
Use kobj_to_dev() instead of container_of() Signed-off-by:
Tian Tao <tiantao6@hisilicon.com> Signed-off-by:
-
Chih-En Hsu authored
This patch is to remove function "mtk_reg_write" since Mediatek EFUSE hardware only supports read functionality for NVMEM consumers. Fixes: ba360fd0 ("nvmem: mtk-efuse: remove nvmem regmap dependency") Acked-by:
Andrew-CT Chen <andrew-ct.chen@mediatek.com> Signed-off-by:
Chih-En Hsu <chih-en.hsu@mediatek.com> Signed-off-by:
-
Vadym Kochan authored
Set type as NVMEM_TYPE_EEPROM to expose this info via sysfs: $ cat /sys/bus/nvmem/devices/{DEVICE}/type EEPROM Signed-off-by: -
Vadym Kochan authored
Set type as NVMEM_TYPE_EEPROM to expose this info via sysfs: $ cat /sys/bus/nvmem/devices/{DEVICE}/type EEPROM Signed-off-by:
-
