balaji-ch

virt_to_phys_user to print a physical address for a mmap

6

Hi, **Thanks a lot for the codes that you are sharing. It is helping me to understand Linux better.** 🐧 **(All these experiments are on Ubuntu VM)** I have used...

Regarding Manual cache management with the CPU cache still being enabled

3

Do we need to call fd = open("/sys/class/u-dma-buf/udmabuf0/sync_for_device", O_WRONLY)) != -1) once before mmap ? or any special care need to be taken for manual cache management ?

Check for contiguity

4

Hi, Is there a way to check that memory allocated is contagious? For example, in Ubuntu VM (CMA enabled and disabled CONFIG_STRICT_DEVMEM) ``` dmesg | cma [ 0.068544] cma: Reserved...

Update read me for sizes more than 4MiB

1

Hi , I faced the same issue as stated in https://github.com/ikwzm/udmabuf/issues/25 and the solution given in the same link ``` insmod u-dma-buf.ko dma_mask_bit=64 udmabuf0=8388608 ``` solves the issue. Please update...

memory-region property how to use it?

1

It is mentioned in the readme that "By the memory-region property, it can be associated the reserved memory area with u-dma-buf." But I don't see of_property_read_ulong for it. Isn't it...

NNEF fails when compiled in debug mode but compiles in release mode. `\OpenVX-sample-impl\kernels\NNEF-Tools\parser\cpp\src\nnef.cpp : fatal error C1128: number of sections exceeded object file format limit: compile with /bigobj` **Fix** Append...

Build.py does not have the option of enabling the USER DATA OBJECT. Corrected Build.py (remove .txt exension) is attached for your reference. USER DATA OBJECT feature can be enabled using...

``` FIND_NUM_PROCESSORS() if ( ${PROCESSOR_COUNT} LESS "1" ) message(FATAL_ERROR "Num processors found is " ${PROCESSOR_COUNT}) endif ( ${PROCESSOR_COUNT} LESS "1" ) add_definitions( -DTARGET_NUM_CORES=${PROCESSOR_COUNT} ) ``` When cross compiling wouldn't this...

Does scatter/gather accept negative indices ?

5

For instance in `vsuxei16.v vs3, (rs1), vs2, vm # unordered 16-bit indexed store of SEW data` does vs2 accepts -ve indices like -1, 0, 1 ?

### Microsoft PowerToys version 0.84.1 ### Installation method PowerToys auto-update ### Running as admin None ### Area(s) with issue? Advanced Paste ### Steps to reproduce 1. Enable Advance Paste 2....