linux.git/drivers/misc, branch v5.8-rc4

habanalabs: increase h/w timer when checking idle

2020-06-24T09:35:23+00:00

In GAUDI the current timer value for the hardware to check if it is
in IDLE state is too low. As a result, there are occasions where the H/W
wrongly reports it is not IDLE. The driver checks that before submitting
work on behalf of the driver during initialization, so a false report might
cause the driver to fail during device initialization.

Signed-off-by: Omer Shpigelman 
Signed-off-by: Oded Gabbay

habanalabs: Correct handling when failing to enqueue CB

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

The fence release flow is different if the CS was never submitted. In that
case, we don't have an hw_sob object attached that we need to "put". While
if the CS was aborted, we do need to "put" the hw_sob.

Signed-off-by: Ofir Bitton 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

habanalabs: increase GAUDI QMAN ARB WDT timeout

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

The current timeout is too low for some of the workloads and we see false
errors as a result.

Reviewed-by: Tomer Tayar 
Signed-off-by: Oded Gabbay

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: use PI in MMU cache invalidation

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

The PS flow for MMU cache invalidation caused timeouts in stress tests.
Use PS + PI flow so no timeouts should happen whatsoever.

Signed-off-by: Omer Shpigelman 
Reviewed-by: Oded Gabbay 
Signed-off-by: Oded Gabbay

habanalabs: block scalar load_and_exe on external queue

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

In Gaudi, the user can't execute scalar load_and_exe on external queue
because it can be a security hole. The driver doesn't parse the commands
being loaded and it can be msg_prot, which the user isn't allowed to use.

Reviewed-by: Tomer Tayar 
Signed-off-by: Oded Gabbay

mei: me: add tiger lake point device ids for H platforms.

2020-06-23T05:55:47+00:00

Add Tiger Lake device ids H for HECI1.
TGH_H is also used in Tatlow SPS platform we need to
disable the mei interface there.

Cc: 
Signed-off-by: Alexander Usyskin 
Signed-off-by: Tomas Winkler 
Link: https://lore.kernel.org/r/20200619165121.2145330-7-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman

mei: me: disable mei interface on Mehlow server platforms

2020-06-23T05:55:47+00:00

For SPS firmware versions 5.0 and newer the way detection has changed.
The detection is done now via PCI_CFG_HFS_3 register.
To prevent conflict the previous method will get sps_4 suffix
Disable both CNP_H and CNP_H_3 interfaces. CNP_H_3 requires
a separate configuration as it doesn't support DMA.

Cc: 
Signed-off-by: Tomas Winkler 
Link: https://lore.kernel.org/r/20200619165121.2145330-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman

maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault

2020-06-17T17:57:41+00:00

Better describe what these functions do.

Suggested-by: Linus Torvalds 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Linus Torvalds

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-13T16:57:21+00:00

Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

  a) 4 spaces + '---help---'
  b) 7 spaces + '---help---'
  c) 8 spaces + '---help---'
  d) 1 space + 1 tab + '---help---'
  e) 1 tab + '---help---'    (correct indentation)
  f) 1 tab + 1 space + '---help---'
  g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

  $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada