kernel/git/stable/linux.git/drivers/misc/habanalabs/debugfs.c, branch master

habanalabs: create common folder

2020-07-24T17:31:37+00:00

For internal needs of our CI we need to move all the common code into a common folder instead of putting them in the root folder of the driver. Same applies to the common header files under include/ Signed-off-by: Oded Gabbay Reviewed-by: Omer Shpigelman

habanalabs: rename mmu_write() to mmu_asid_va_write()

2020-06-24T06:09:10+00:00

The function name conflicts with a static inline function in arch/m68k/include/asm/mcfmmu.h Reported-by: kernel test robot Reviewed-by: Tomer Tayar Signed-off-by: Oded Gabbay

habanalabs: support clock gating enable/disable

2020-05-19T11:48:41+00:00

In Gaudi there is a feature of clock gating certain engines. Therefore, add this property to the device structure. In addition, due to a limitation of this feature, the driver needs to dynamically enable or disable this feature during run-time. Therefore, add ASIC interface functions to enable/disable this function from the common code. Moreover, this feature must be turned off when the user wishes to debug the ASIC by reading/writing registers and/or memory through the driver's debugfs. Therefore, add an option to enable/disable clock gating via the debugfs interface. Signed-off-by: Oded Gabbay

habanalabs: remove stop-on-error flag from DMA

2020-05-17T09:06:22+00:00

Stop-on-error mode in DMA is useful as it stops the transaction immediately upon error e.g. page fault. But it may cause the next command submission to fail as is leaves the DMA in unstable state. Therefore we remove the stop-on-error configuration from the DMA. Stop-on-err is still available for debug. Signed-off-by: Omer Shpigelman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: add debugfs write64/read64

2020-03-24T08:54:16+00:00

Allow debug user to write/read 64-bit data through debugfs. This will expedite the dump process of the (large) internal memories of the device done during debug. Signed-off-by: Moti Haimovski Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: split the host MMU properties

2020-03-24T08:54:16+00:00

Host memory may be allocated with huge pages. A different virtual range may be used for mapping in this case. Add Huge PCI MMU (HPMMU) properties to support it. This patch is a prerequisite for future ASICs support and has no effect on Goya ASIC as currently a single virtual host range is used for all page sizes. Signed-off-by: Omer Shpigelman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: add more protection of device during reset

2019-11-21T09:35:47+00:00

Prevent accesses to the device (register read/write) from debugfs entries during reset as that can cause the device to get stuck. Signed-off-by: Oded Gabbay Reviewed-by: Tomer Tayar

habanalabs: split MMU properties to PCI/DRAM

2019-11-21T09:35:46+00:00

Split the properties used for MMU mappings to DRAM and PCI (host) types. This is a prerequisite for future ASICs support. Note that in Goya ASIC, the PMMU and DMMU are the same (except of page sizes) as only one MMU mechanism is used for both of the mapping types. Hence this patch should not have any effect on current behavior. Signed-off-by: Omer Shpigelman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: re-factor MMU masks and documentation

2019-11-21T09:35:46+00:00

Some cosmetics around the MMU code to make it more self-explanatory. Signed-off-by: Omer Shpigelman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64

2019-09-05T11:55:27+00:00

In some files the code use __cpu_to_le32/64 while in other it use cpu_to_le32/64. Replace all __cpu_to_le32/64 instances with cpu_to_le32/64 for consistency. Signed-off-by: Oded Gabbay