Oded Gabbay 639781dcab habanalabs/gaudi: add debugfs to DMA from the device ... 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>		2021-04-09 14:09:24 +03:00
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ABI	habanalabs/gaudi: add debugfs to DMA from the device	2021-04-09 14:09:24 +03:00
PCI	Documentation: PCI: Add PCI endpoint NTB function user guide	2021-02-23 14:15:45 -06:00
RCU	It has been a relatively quiet cycle in docsland.	2021-02-22 10:57:46 -08:00
accounting	…
admin-guide	More new code for 5.12:	2021-02-28 11:45:25 -08:00
arm	Documentation: ARM: fix reference to DT format documentation	2021-01-28 15:37:43 -07:00
arm64	arm64: kernel: disable CNP on Carmel	2021-03-25 10:00:23 +00:00
block	block/bfq: update comments and default value in docs for fifo_expire	2021-03-02 11:25:38 -07:00
bpf	bpf, docs: Update build procedure for manually compiling LLVM and Clang	2021-01-23 00:09:03 +01:00
cdrom	…
core-api	Merge branch 'akpm' (patches from Andrew)	2021-02-24 16:20:38 -08:00
cpu-freq	…
crypto	…
dev-tools	kasan: clarify that only first bug is reported in HW_TAGS	2021-02-26 09:41:03 -08:00
devicetree	Update extcon next for v5.13	2021-04-08 08:45:30 +02:00
doc-guide	docs: Document cross-referencing using relative path	2021-02-04 16:24:12 -07:00
driver-api	Char/Misc driver patches for 5.12-rc1	2021-02-24 10:25:37 -08:00
fault-injection	…
fb	…
features	Documentation: features: refresh feature list	2021-02-25 11:25:57 -07:00
filesystems	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-02-27 08:07:12 -08:00
firmware-guide	Merge branch 'acpi-messages'	2021-02-15 17:04:53 +01:00
firmware_class	…
fpga	Documentation: fpga: dfl: Add description for DFL UIO support	2021-03-28 14:58:18 +02:00
gpu	drm: Use USB controller's DMA mask when importing dmabufs	2021-03-11 11:11:33 +01:00
hid	…
hwmon	hwmon: add Texas Instruments TPS23861 driver	2021-02-12 07:02:55 -08:00
i2c	i2c: testunit: add support for block process calls	2021-02-12 11:11:04 +01:00
ia64	…
ide	…
iio	docs: iio: Correct a typo	2021-01-21 14:06:00 -07:00
infiniband	…
input	Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams	2021-01-28 16:43:04 -07:00
isdn	…
kbuild	Kbuild updates for v5.12	2021-02-25 10:17:31 -08:00
kernel-hacking	docs: kernel-hacking: be more civil	2021-02-11 10:00:40 -07:00
leds	…
litmus-tests	…
livepatch	Documentation: livepatch: document reliable stacktrace	2021-01-26 11:50:00 +01:00
locking	…
m68k	…
maintainer	…
mhi	…
mips	…
misc-devices	Documentation: misc-devices: Add Documentation for dw-xdata-pcie driver	2021-04-05 13:15:52 +02:00
netlabel	…
networking	docs: networking: Fix a typo	2021-03-20 19:02:42 -07:00
nios2	…
nvdimm	…
openrisc	…
parisc	…
pcmcia	…
power	It has been a relatively quiet cycle in docsland.	2021-02-22 10:57:46 -08:00
powerpc	docs: powerpc: Fix tables in syscall64-abi.rst	2021-02-25 13:04:24 -07:00
process	Merge git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2021-03-09 17:15:56 -08:00
riscv	…
s390	…
scheduler	It has been a relatively quiet cycle in docsland.	2021-02-22 10:57:46 -08:00
scsi	SCSI misc on 20210219	2021-02-22 10:24:58 -08:00
security	Keyrings miscellany	2021-02-23 16:09:23 -08:00
sh	…
sound	ALSA: jack: implement software jack injection via debugfs	2021-02-02 10:37:07 +01:00
sparc	…
sphinx	docs: Enable usage of relative paths to docs on automarkup	2021-02-04 16:23:43 -07:00
sphinx-static	…
spi	…
staging	…
target	…
timers	…
trace	Char/Misc driver patches for 5.12-rc1	2021-02-24 10:25:37 -08:00
translations	A handful of late-arriving documentation fixes, nothing all that notable.	2021-02-26 14:21:18 -08:00
usb	usb: raw-gadget: update documentation and Kconfig	2021-01-26 18:38:45 +01:00
userspace-api	Char/Misc driver patches for 5.12-rc1	2021-02-24 10:25:37 -08:00
virt	documentation/kvm: additional explanations on KVM_SET_BOOT_CPU_ID	2021-03-19 05:31:32 -04:00
vm	mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect	2021-02-24 13:38:27 -08:00
w1	…
watchdog	…
x86	Documentation/x86/boot.rst: Correct the example of SETUP_INDIRECT	2021-01-28 15:25:31 -07:00
xtensa	…
.gitignore	…
COPYING-logo	…
Changes	…
CodingStyle	…
Kconfig	…
Makefile	kbuild: remove PYTHON variable	2021-02-01 10:37:19 +09:00
SubmittingPatches	…
asm-annotations.rst	x86/entry: Emit a symbol for register restoring thunk	2021-01-14 17:18:25 +01:00
atomic_bitops.txt	…
atomic_t.txt	…
conf.py	Fix unaesthetic indentation	2021-02-22 14:35:04 -07:00
docutils.conf	…
dontdiff	…
index.rst	…
logo.gif	…
memory-barriers.txt	…
watch_queue.rst	…