Quantum
5774e21965
[module] implement mmap on PCI kvmfr devices
...
This allows PCI kvmfr devices to be directly mmap'd just like in-memory
ones. Also, the more efficient mmap implementation is used for mapping
the dmabuf, avoiding the faulting code entirely.
2021-02-21 10:31:48 +11:00
Quantum
2c909f0af7
[module] improve dmabuf mmap logic for vmalloc'd memory
...
Instead of faulting the pages in one by one when mmaping on the dma fd,
we could instead use remap_vmalloc_range to map in all the memory at
once.
2021-02-21 10:31:48 +11:00
Quantum
b447b78b17
[module] support in-memory kvmfr devices
...
Added an array option static_size_mb to the kvmfr module to create a
list of in-memory kvmfr devices. These devices support dmabuf just like
normal kvmfr devices. Additionally, they can be mmap'd, which allows
them to be passed to qemu as ivshmem devices.
2021-02-21 10:31:48 +11:00
Geoffrey McRae
1313858889
[module] fix loading on 5.10, new member nr_range must be specified
2021-01-03 23:41:59 +11:00
aspen
69b8c4b4eb
module: fix kernel module compilation on Linux 5.10+
...
linux@a4574f63 caused the kernel module to fail to compile, due to
changing the dev_pagemap->res field to dev_pagemap->range.
Closes #328
2020-12-03 02:18:59 +11:00
Geoffrey McRae
87a2fc2c9e
[module] updated description, copyright and author
2020-11-02 13:12:48 +11:00
four0four
c0acfd1228
[module] fix integer overflow in kvmfr_dmabuf_create
2020-10-30 18:24:02 +11:00
Geoffrey McRae
3de2641d92
[module] fix compile on >= 5.9.0
...
fixes #314
2020-10-30 16:14:06 +11:00
Geoffrey McRae
fd2801a670
[module] remove now deprecated uio support
2020-10-30 16:02:31 +11:00
Geoffrey McRae
1ac13658e1
[module] fix compilation for linux 5.6
2020-03-11 00:28:44 +11:00
Geoffrey McRae
687eddcc63
[kvmfr] fixed incorrect buffer size calculation
2020-01-24 17:07:09 +11:00
Geoffrey McRae
7a96c9fe24
[kvmfr] don't recreate the pages for each map
2020-01-13 15:42:45 +11:00
Geoffrey McRae
788f885759
[kvmfr] added the ability to obtain a dmabuf of the ivshmem memory
...
This is to enable the ability to use dri3 to create dmabuf backed
pixmaps directly.
2020-01-13 13:39:24 +11:00
Geoffrey McRae
08bf01b649
[all] update copyright dates
2019-02-22 22:16:14 +11:00
Geoffrey McRae
116926f7c0
[module] enable write-through mapping for the device
...
This is the magic I have been looking for the last few weeks, with
this change VM->VM is now useful at 60+fps :D
2018-05-21 21:56:53 +10:00
Geoffrey McRae
da2bcfdf9a
[module] rename defines from LG to KVMFR
2018-05-15 20:53:10 +10:00
Geoffrey McRae
7f81d21aaa
[module] added kvmfr kernel module for VM->VM shared memory
2018-05-15 20:50:52 +10:00
