| #
0272359a
|
| 02-Mar-2026 |
Timo Völker <timo.voelker@fh-muenster.de> |
arm64/pmap: fix pmap_is_valid_memattr()
The function pmap_is_valid_memattr(pmap, mode) checks whether the
given variable mode is between the two constant values
VM_MEMATTR_DEVICE and VM_MEMATTR_WRIT
arm64/pmap: fix pmap_is_valid_memattr()
The function pmap_is_valid_memattr(pmap, mode) checks whether the
given variable mode is between the two constant values
VM_MEMATTR_DEVICE and VM_MEMATTR_WRITE_THROUGH.
After the code for this function was written, the value of
VM_MEMATTR_DEVICE changed from 0 to 4. Since VM_MEMATTR_WRITE_THROUGH
is still 3, the condition is always false.
This patch changes the condition to check whether mode is equal to any
of the VM_MEMATTR* constants.
Reviewed by: andrew, tuexen
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D55534
show more ...
|
| #
95ee2897
|
| 16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: two-line .h pattern
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
|
| #
3473f283
|
| 16-Mar-2023 |
Andrew Turner <andrew@FreeBSD.org> |
Switch the arm64 VM_MEMATTR_DEVICE to nGnRE
Move device memory to a weaker type. The new device memory type allows
the system to acknowledge a write to a device before the write has
completed. This
Switch the arm64 VM_MEMATTR_DEVICE to nGnRE
Move device memory to a weaker type. The new device memory type allows
the system to acknowledge a write to a device before the write has
completed. This is inline with VM_MEMATTR_DEVICE on armv6/armv7.
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D38945
show more ...
|
| #
2abd4f85
|
| 08-Apr-2021 |
Andrew Turner <andrew@FreeBSD.org> |
Add a way to map arm64 non-posted device memory
On arm64 we currently use a non-posted write for device memory, however
we should move to use posted writes. This is expected to work on most
hardware
Add a way to map arm64 non-posted device memory
On arm64 we currently use a non-posted write for device memory, however
we should move to use posted writes. This is expected to work on most
hardware, however we will need to support a non-posted option for some
broken hardware.
Reviewed by: imp, manu, bcr (manpage)
Differential Revision: https://reviews.freebsd.org/D29722
show more ...
|
| #
13ec5a6d
|
| 05-Feb-2021 |
Andrew Turner <andrew@FreeBSD.org> |
Add support for arm64 nGnRE device memory
On arm64 we can select how strongly we order device memory. Currently
we use the strongest type of non-Gathering, non-Reordering, no Early
write acknowledge
Add support for arm64 nGnRE device memory
On arm64 we can select how strongly we order device memory. Currently
we use the strongest type of non-Gathering, non-Reordering, no Early
write acknowledgement. This is equivalent to VM_MEMATTR_SO in the 32-bit
arm code.
Create a new memory type to remove the no Early write acknowledgement
option to create a memory attribute that is equivalent to the arm
VM_MEMATTR_DEVICE.
Keep the the old nGnRnE memory as what we provide for VM_MEMATTR_DEVICE
until we can test nGnRE on more hardware. A method for dynamically
switching back may be needed as at least one vendor is known to have
broken nGnRE memory.
Sponsored by: Innovate UK
show more ...
|
| #
95ee2897
|
| 16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: two-line .h pattern
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
|
| #
3473f283
|
| 16-Mar-2023 |
Andrew Turner <andrew@FreeBSD.org> |
Switch the arm64 VM_MEMATTR_DEVICE to nGnRE
Move device memory to a weaker type. The new device memory type allows
the system to acknowledge a write to a device before the write has
completed. This
Switch the arm64 VM_MEMATTR_DEVICE to nGnRE
Move device memory to a weaker type. The new device memory type allows
the system to acknowledge a write to a device before the write has
completed. This is inline with VM_MEMATTR_DEVICE on armv6/armv7.
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D38945
show more ...
|
| #
2abd4f85
|
| 08-Apr-2021 |
Andrew Turner <andrew@FreeBSD.org> |
Add a way to map arm64 non-posted device memory
On arm64 we currently use a non-posted write for device memory, however
we should move to use posted writes. This is expected to work on most
hardware
Add a way to map arm64 non-posted device memory
On arm64 we currently use a non-posted write for device memory, however
we should move to use posted writes. This is expected to work on most
hardware, however we will need to support a non-posted option for some
broken hardware.
Reviewed by: imp, manu, bcr (manpage)
Differential Revision: https://reviews.freebsd.org/D29722
show more ...
|
| #
13ec5a6d
|
| 05-Feb-2021 |
Andrew Turner <andrew@FreeBSD.org> |
Add support for arm64 nGnRE device memory
On arm64 we can select how strongly we order device memory. Currently
we use the strongest type of non-Gathering, non-Reordering, no Early
write acknowledge
Add support for arm64 nGnRE device memory
On arm64 we can select how strongly we order device memory. Currently
we use the strongest type of non-Gathering, non-Reordering, no Early
write acknowledgement. This is equivalent to VM_MEMATTR_SO in the 32-bit
arm code.
Create a new memory type to remove the no Early write acknowledgement
option to create a memory attribute that is equivalent to the arm
VM_MEMATTR_DEVICE.
Keep the the old nGnRnE memory as what we provide for VM_MEMATTR_DEVICE
until we can test nGnRE on more hardware. A method for dynamically
switching back may be needed as at least one vendor is known to have
broken nGnRE memory.
Sponsored by: Innovate UK
show more ...
|
| #
209be205
|
| 16-May-2017 |
Dimitry Andric <dim@FreeBSD.org> |
Merge ^/head r317971 through r318379.
|
| #
c031b4b0
|
| 13-May-2017 |
Andrew Turner <andrew@FreeBSD.org> |
Add the VM_MEMATTR_WRITE_THROUGH memory type to arm64 and use it to support
VM_MEMATTR_WRITE_COMBINING in the kernel. This fixes a bug where Xorg would
use write back cached memory for its graphics b
Add the VM_MEMATTR_WRITE_THROUGH memory type to arm64 and use it to support
VM_MEMATTR_WRITE_COMBINING in the kernel. This fixes a bug where Xorg would
use write back cached memory for its graphics buffers. This would produce
artifacts on the screen as cachelines were written to memory.
MFC after: 1 week
Sponsored by: DARPA, AFRL
show more ...
|
| #
416ba5c7
|
| 22-Jun-2015 |
Navdeep Parhar <np@FreeBSD.org> |
Catch up with HEAD (r280229-r284686).
|
| #
98e0ffae
|
| 27-May-2015 |
Simon J. Gerraty <sjg@FreeBSD.org> |
Merge sync of head
|
| #
4bf53d0b
|
| 03-Apr-2015 |
Baptiste Daroussin <bapt@FreeBSD.org> |
Merge from HEAD
|
| #
e6e746bf
|
| 25-Mar-2015 |
Glen Barber <gjb@FreeBSD.org> |
MFH: r278968-r280640
Sponsored by: The FreeBSD Foundation
|
| #
412042e2
|
| 23-Mar-2015 |
Andrew Turner <andrew@FreeBSD.org> |
Add the start of the arm64 machine headers. This is the subset needed to
start getting userland libraries building.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
|
| #
209be205
|
| 16-May-2017 |
Dimitry Andric <dim@FreeBSD.org> |
Merge ^/head r317971 through r318379.
|
| #
c031b4b0
|
| 13-May-2017 |
Andrew Turner <andrew@FreeBSD.org> |
Add the VM_MEMATTR_WRITE_THROUGH memory type to arm64 and use it to support
VM_MEMATTR_WRITE_COMBINING in the kernel. This fixes a bug where Xorg would
use write back cached memory for its graphics b
Add the VM_MEMATTR_WRITE_THROUGH memory type to arm64 and use it to support
VM_MEMATTR_WRITE_COMBINING in the kernel. This fixes a bug where Xorg would
use write back cached memory for its graphics buffers. This would produce
artifacts on the screen as cachelines were written to memory.
MFC after: 1 week
Sponsored by: DARPA, AFRL
show more ...
|
| #
416ba5c7
|
| 22-Jun-2015 |
Navdeep Parhar <np@FreeBSD.org> |
Catch up with HEAD (r280229-r284686).
|
| #
98e0ffae
|
| 27-May-2015 |
Simon J. Gerraty <sjg@FreeBSD.org> |
Merge sync of head
|
| #
4bf53d0b
|
| 03-Apr-2015 |
Baptiste Daroussin <bapt@FreeBSD.org> |
Merge from HEAD
|
| #
e6e746bf
|
| 25-Mar-2015 |
Glen Barber <gjb@FreeBSD.org> |
MFH: r278968-r280640
Sponsored by: The FreeBSD Foundation
|
| #
412042e2
|
| 23-Mar-2015 |
Andrew Turner <andrew@FreeBSD.org> |
Add the start of the arm64 machine headers. This is the subset needed to
start getting userland libraries building.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
|
| #
95ee2897
|
| 16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: two-line .h pattern
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
|
| #
3473f283
|
| 16-Mar-2023 |
Andrew Turner <andrew@FreeBSD.org> |
Switch the arm64 VM_MEMATTR_DEVICE to nGnRE
Move device memory to a weaker type. The new device memory type allows
the system to acknowledge a write to a device before the write has
completed. This
Switch the arm64 VM_MEMATTR_DEVICE to nGnRE
Move device memory to a weaker type. The new device memory type allows
the system to acknowledge a write to a device before the write has
completed. This is inline with VM_MEMATTR_DEVICE on armv6/armv7.
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D38945
show more ...
|