With SGX1 an enclave needs to be created with its maximum memory demands
pre-allocated. Pages cannot be added to an enclave after it is initialized.
SGX2 introduces a new function, ENCLS[EAUG] for adding pages to an
initialized enclave.
Add support for dynamically adding pages to an initialized en
Move sgx_encl_page_alloc() to encl.c and export it so that it can be
used in the implementation for MAP_POPULATE, which requires to allocate
new enclave pages.
Signed-off-by: Jarkko Sakkinen
---
arch/x86/kernel/cpu/sgx/encl.c | 38 +
arch/x86/kernel/cpu/sgx/encl.
Sometimes you might want to use MAP_POPULATE to ask a device driver to
initialize the device memory in some specific manner. SGX driver can use
this to request more memory by issuing ENCLS[EAUG] x86 opcode for each
page in the address range.
Add f_ops->populate() with the same parameters as f_ops-
For device memory (aka VM_IO | VM_PFNMAP) MAP_POPULATE does nothing. Allow
to use that for initializing the device memory by providing a new callback
f_ops->populate() for the purpose.
SGX patches are provided to show the callback in context.
An obvious alternative is a ioctl but it is less elega
On Sun, Mar 06, 2022 at 06:25:52AM +0200, Jarkko Sakkinen wrote:
> > Are you deliberately avoiding the question? I'm not asking about
> > implementation. I'm asking about the semantics of MAP_POPULATE with
> > your driver.
>
> No. I just noticed a bug in the guard from your comment that I wanted
On Sun, Mar 06, 2022 at 04:19:26AM +, Matthew Wilcox wrote:
> On Sun, Mar 06, 2022 at 06:11:21AM +0200, Jarkko Sakkinen wrote:
> > On Sun, Mar 06, 2022 at 03:52:12AM +, Matthew Wilcox wrote:
> > > On Sun, Mar 06, 2022 at 05:21:11AM +0200, Jarkko Sakkinen wrote:
> > > > On Sun, Mar 06, 2022
On Sun, Mar 06, 2022 at 06:11:21AM +0200, Jarkko Sakkinen wrote:
> On Sun, Mar 06, 2022 at 03:52:12AM +, Matthew Wilcox wrote:
> > On Sun, Mar 06, 2022 at 05:21:11AM +0200, Jarkko Sakkinen wrote:
> > > On Sun, Mar 06, 2022 at 02:57:55AM +, Matthew Wilcox wrote:
> > > > On Sun, Mar 06, 2022
On Sun, Mar 06, 2022 at 03:52:12AM +, Matthew Wilcox wrote:
> On Sun, Mar 06, 2022 at 05:21:11AM +0200, Jarkko Sakkinen wrote:
> > On Sun, Mar 06, 2022 at 02:57:55AM +, Matthew Wilcox wrote:
> > > On Sun, Mar 06, 2022 at 04:15:33AM +0200, Jarkko Sakkinen wrote:
> > > > Sometimes you might w
On Sun, Mar 06, 2022 at 05:21:11AM +0200, Jarkko Sakkinen wrote:
> On Sun, Mar 06, 2022 at 02:57:55AM +, Matthew Wilcox wrote:
> > On Sun, Mar 06, 2022 at 04:15:33AM +0200, Jarkko Sakkinen wrote:
> > > Sometimes you might want to use MAP_POPULATE to ask a device driver to
> > > initialize the d
On Sat, Mar 05, 2022 at 11:55:34PM +0900, Byungchul Park wrote:
> > that is why some of the DEPT reports were completely incomprehensible
>
> It's because you are blinded to blame at it without understanding how
> Dept works at all. I will fix those that must be fixed. Don't worry.
Users of DEPT
Sometimes you might want to use MAP_POPULATE to ask a device driver to
initialize the device memory in some specific manner. SGX driver can use
this to request more memory by issuing ENCLS[EAUG] x86 opcode for each
page in the address range.
Add f_ops->populate() with the same parameters as f_ops-
On Sun, Mar 06, 2022 at 02:57:55AM +, Matthew Wilcox wrote:
> On Sun, Mar 06, 2022 at 04:15:33AM +0200, Jarkko Sakkinen wrote:
> > Sometimes you might want to use MAP_POPULATE to ask a device driver to
> > initialize the device memory in some specific manner. SGX driver can use
> > this to requ
On Sun, Mar 06, 2022 at 04:15:33AM +0200, Jarkko Sakkinen wrote:
> Sometimes you might want to use MAP_POPULATE to ask a device driver to
> initialize the device memory in some specific manner. SGX driver can use
> this to request more memory by issuing ENCLS[EAUG] x86 opcode for each
> page in the
Sometimes you might want to use MAP_POPULATE to ask a device driver to
initialize the device memory in some specific manner. SGX driver can use
this to request more memory by issuing ENCLS[EAUG] x86 opcode for each
page in the address range.
Add f_ops->populate() with the same parameters as f_ops-
On platforms capable of allowing 8K (7680 x 4320) modes, pinning 2 or
more framebuffers/scanout buffers results in only one that is mappable/
fenceable. Therefore, pageflipping between these 2 FBs where only one
is mappable/fenceable creates latencies large enough to miss alternate
vblanks thereby
The first patch is a drm core patch that replaces the for loop in
drm_mm_insert_node_in_range() with the iterator and would not
cause any functional changes. The second patch is a i915 driver
specific patch that also uses the iterator but solves a different
problem.
v2:
- Added a new patch to this
This iterator relies on drm_mm_first_hole() and drm_mm_next_hole()
functions to identify suitable holes for an allocation of a given
size by efficiently traversing the rbtree associated with the given
allocator.
It replaces the for loop in drm_mm_insert_node_in_range() and can
also be used by drm
On 04/03/2022 01:03, Joel Stanley wrote:
> Convert the bindings to yaml and add the ast2600 compatible string.
>
> The legacy mfd description was put in place before the gfx bindings
> existed, to document the compatible that is used in the pinctrl
> bindings.
>
> Signed-off-by: Joel Stanley
> -
From: Rob Clark
Fixes: f6d62d091cfd ("drm/msm/a6xx: add support for Adreno 660 GPU")
Signed-off-by: Rob Clark
Reviewed-by: Dmitry Baryshkov
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 12
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx
From: Daniel Vetter
Hi Daniel, everyone,
Ive substantially updated this patchset,
and I thought it useful to reply here.
Im noting the biggest changes in context below, trimming heavily otherwize.
Also, Ive lost the msg in my gmail-cloud, so this lacks
the usual "Daniel said: " attribution, a
On Fri, Mar 04, 2022 at 10:40:35PM -0500, Theodore Ts'o wrote:
> On Fri, Mar 04, 2022 at 12:20:02PM +0900, Byungchul Park wrote:
> >
> > I found a point that the two wait channels don't lead a deadlock in
> > some cases thanks to Jan Kara. I will fix it so that Dept won't
> > complain it.
>
> I s
On Fri, Mar 04, 2022 at 10:26:23PM -0500, Theodore Ts'o wrote:
> On Fri, Mar 04, 2022 at 09:42:37AM +0900, Byungchul Park wrote:
> >
> > All contexts waiting for any of the events in the circular dependency
> > chain will be definitely stuck if there is a circular dependency as I
> > explained. So
On Sat, 5 Mar 2022 at 00:57, Rob Clark wrote:
>
> On Fri, Mar 4, 2022 at 1:47 PM Dmitry Baryshkov
> wrote:
> >
> > On Fri, 4 Mar 2022 at 23:23, Rob Clark wrote:
> > >
> > > From: Rob Clark
> > >
> > > Fixes: f6d62d091cfd ("drm/msm/a6xx: add support for Adreno 660 GPU")
> > > Signed-off-by: Rob
Le 05/03/2022 à 08:38, Christophe Leroy a écrit :
Le 04/03/2022 à 21:24, Lyude Paul a écrit :
This mostly looks good to me. Just one question (and one comment down
below
that needs addressing). Is this with ppc32? (I ask because ppc64le
doesn't
seem to hit this compilation error).
That'
24 matches
Mail list logo
