Bifrost has a new type of job called 'index-driven vertex', which takes
in two shaders. The primary shader, called for all values, performs
position shading to a cacheline-aligned attribute buffer. The secondary
shader, called for values still live after culling, performs varying
shading.
It is the responsiblilty of the implementation to ensure that vertices
from different instances do not share a cacheline.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11413>
We can actually create array surfaces instead of requiring single-slice
in a few cases. This does require us to be very careful about our
checks, though.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11647>
It doesn't matter for the actual copy rectangle and this makes the
asserts a bit nicer as we don't need to bother with the intratile
offsets because there aren't any yet.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11647>
This adds a helper isl_surf_get_uncompressed_surf for creating a surface
which provides an uncompressed view into a compressed surface. The code
is basically a direct port of the uncompressed surface code from the
Vulkan driver which, in turn, was a port from BLORP.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11647>
Mirroring a change in iris; see the previous commit for rationale.
One difference is that crocus does sometimes use CPU maps on Atoms
for *reads*...but writes don't go through CPU caches. Should be OK.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11727>
Back when SSBOs were first enabled in i965, we tried to work around
issues where the CPU and GPU were incoherently writing to the same
cacheline by forcing an alignment such that different sections of
data would fall in different cachelines. This seems wrong.
On integrated GPUs with LLC, CPU and GPU writes should be coherent.
On integrated GPUs without LLC, we either enable snooping (so they
are again coherent), or we use WC maps (so the CPU cache isn't used).
Discrete GPUs always use WC maps (so the CPU cache isn't used).
This should work. In other words, I think the increased alignment
was just working around coherency problems on atoms that have been
fixed in the intervening 6 year time period.
Untyped surface messages require 4B alignment.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5016
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11727>
Since writers are counted in the accessor set, the old implementation
had a redundant flush in the "flush accessing" case. To fix, split the
two modes into separate functions, removing the redundancy and offering
a much more ergonomic API.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11077>
Squashed together with commits from Boris's original dependency tracking
cleanup series.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11077>
Reduces the work that other shader passes have to do to look at dead code,
and possibly extra rounds around the optimization loop if dce wasn't the
last pass in it.
shader-db runtime -1.12919% +/- 0.264337% (n=49) on SKL.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11628>
if shaders aren't being shared between programs, they can instead directly
assign io between the shader stages such that only the producer and consumer
pair need to have their slots match up
this requires that each gfx program struct stores base nir for a given shader
in order to avoid breaking io for other programs which reuse shader states
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11691>
the base shader states will never change for a program, and tcs will never
change its io, so there's no point in having this in the shader update hotpath
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11691>
After attempting to use the GBM backend specified by the user
via an environment variable, if any, but before falling back
to the built-in GBM backends, attempt to dlopen
libg<DRM driver name>_gbm.so in the GBM backend library search
path (Defaults to "$libdir/gbm") and initialize a device using
it. This enables automatic backend discovery for devices that
do not provide a DRI driver.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
If the user specifies a backend name explicitly
via an environment variable and it is not in the
list of built-in backends, attempt to load it at
runtime.
runtime-loaded backends get a new gbm_backend_desc
struct instance for each device using them (A
small increase in memory usage to eliminate the
need for the locking and bookkeeping sharing them
would require), so these structures need to be
freed when destroying devices using runtime-loaded
backends.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
Subsequent changes will use this same logic to
instantiate devices with the correct version and
set up their backend reference.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
A subsequent change will allow loading backends
from DSOs specified by the GBM_BACKEND environment
variable. The exact DSO name and path are derived
by the common loader code and will be of the form:
<gbm_backend_path>/<GBM_BACKEND>_gbm.so
E.g., a user would set the environment variable to
"external" to load "external_gbm.so". Users will
also still be able to explicitly request any
builtin backends by name as well, so this change
helps keep the environment variable syntax
consistent between internal and external backends.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
This is the list of locations where GBM will look
for alternate backend implementations based on the
DRM driver name. It defaults to $libdir/gbm.
On Android, this path is currently hard-coded to
/vendor/lib[64]/gbm.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
Separate the path-building and dlopen() portion of
loader_open_driver() from the DRI extension
loading logic. The former will be shared by the
GBM backend loading logic in a subsequent change.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
This just makes it clearer the array isn't a global
list of all backends in use.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
This is based on the wayland EGL library ABI test
framework. The helper macros were copied from
there and expanded to support more than one
struct/type, and to additionally check member
type compatibility by default.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
Define a version number for the interface GBM uses
to offload work to its backends/drivers. Store the
version in the backend interface structs provided
to the loader by backends, as well as in the core
interface struct provided to backends by the GBM
loader code to backends.
The backend can create structures of any version
it supports, which can be greater or less than the
interface version specified by GBM in the core
interface structure. Hence, GBM will need to take
care to check the backend version before accessing
any members added to structs defined in
gbm_backend_abi.h after this change.
Similarly, the backend may need to check the
interface version supported by the GBM library
before passing back data in any structure members
that require the GBM library to interact with
them for correct operation. For example, if for
some reason a structure defined in
gbm_backend_abi.h gained a field which was a
pointer to memory allocated by the backend and
freed by GBM, the backend should avoid allocating
this memory if the GBM library did not specify an
interface version new enough to indicate that it
was aware of the new structure member.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
The content of gbm_backend_abi.h are nearly an
identical copy of the old gbmint.h. Only minimal
modifications have been made to ease history
tracking. Subsequent changes will further
formalize the ABI structures in gbm_backend_abi.h
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
The GBM core/loader code defines one helper
function used by both itself and the built-in DRI
backend. Presumably, external backend authors
would want to use such functions as well, so
package them into a single struct that will be
passed explicitly to externally loaded backends in
subsequent changes.
Another option considered was to simply export
the gbm_format_canonicalize() function directly,
optionally renaming it to better indicate it is
intended only for "internal" use first. However,
even with a rename, this would expose it to
potential use by applications as well, which is
not ideal, as it is not intended to be part of
the application-facing GBM ABI.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
This will be used for looking up the backend
again at destruction time to perform any backend-
agnostic cleanup. To facilitate that, also
dispatch device destruction to the backend manager
code.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
It was a functional no-op with the currently
available backends (Only DRI), and its implied
intended functionality is implemented elsewhere
in subsequent patches.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902>
Mike Blumenkrantz
Alyssa Rosenzweig
Daniel Stone
Jason Ekstrand
Jason Ekstrand
Kenneth Graunke
Boris Brezillon
Alyssa Rosenzweig
Emma Anholt
James Jones