While enumerating devices on a system with multiple implementations,
unnecessary ioctls will be issued before a driver checks if it supports a
given device.
This patch makes the driver fail early based on a intel_device_info.ver
check with 2 new parameters added to intel_get_device_info_from_fd.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27166>
This sets up the PS dispatch controls to a supported combination of
Kernel0/Kernel1 dispatch modes, initializing the polygon packing
controls to use a multipolygon dispatch mode if one was provided.
Rework:
* Jordan: Move into intel_update_ps_state()
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26606>
A "dance" is required with this uAPI, first we need to ask KMD what is
the size of the giving query id, then memory needs to be allocated to
match that size and then query again with the memory address set and
at this time Xe KMD will copy the query data to memory.
This dance was being duplicated in xe_engine_get_info() and
anv_xe_physical_device_get_parameters() and the next patch will also
use it in Iris, so here adding it common/xe and re-using as much
as possible.
There is one more implementation of this function in intel/dev but
due to how libs are linked intel/dev can't depend on to intel/common.
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26325>
To implement this feature, we need to do CPU side tracking of all
L3/L2/L1 entries. This does add a little bit of CPU allocations, but
the advantage is that the traversal of the page table tree is faster.
No more need for the linear seach of find_buffer().
With this feature, we can have multiple VkImage bind to the same main
memory address, as long as they share exact same mapping parameters.
The AUX mapping will be removed when the last VkImage is destroyed.
As previously, if the L1 mapping entry parameters don't match, the
mapping fails. Anv handles this nicely by just disabling AUX on the
image.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26335>
This reworks the intel_compute_pixel_hash_table_nway() pixel pipe
hashing table computation helper to handle cases where some pixel
pipes have processing power different from the others, this is helpful
for Gfx12.7+ platforms where there are pixel pipes with 1 DSS as well
as pixel pipes with 2 DSSes, which currently can lead to a serious
performance bottleneck in the pixel pipes with lower processing power.
In order to avoid such a load imbalance the
intel_compute_pixel_hash_table_nway() function will now take two pixel
pipe bitsets instead of one: Pixel pipes enabled on both bitsets will
appear with twice the frequency on the table as pixel pipes which only
appear on one bitset. See the comments below for more details on the
algorithm used to construct a pixel hashing table with the desired
properties.
With this change rendering performance improves by about 25% on a
fused MTL platform -- The list of specific configs this is expected to
show an improvement on is not included here since the list is rather
long and some of the configs may still be embargoed or may never be
productized, but in order to find out whether your Gfx12.7+ device
could be affected by this you can check the output of the
intel_dev_info tool from the Mesa tree and see if there are multiple
"pixel pipe" entries with different DSS count. That isn't expected to
occur on any DG2 configuration, only on MTL+ platforms, so this change
should have no effect at all on DG2 (it's easy to convince oneself
that it won't since for DG2 mask1 should equal mask2 so mask2 will be
set to zero at the beginning of intel_compute_pixel_hash_table_nway()
and the new swzx[] permutation will be set to the identity).
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26266>
With the removal of DRM_IOCTL_XE_MMIO xe_gem_read_render_timestamp()
was always returning false but with DRM_XE_DEVICE_QUERY_ENGINE_CYCLES
it can be re implemented making use of
xe_gem_read_correlate_cpu_gpu_timestamp().
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24591>
This implements a minimalistic algorithm that can be used to obtain an
approximate solution for the integer programming problem of finding
the optimal tile dimensions based on an estimate of the tile cache
consumption per pixel of the current graphics pipeline -- Including
the TC footprint of render targets, depth and stencil buffers and
their auxiliary surfaces. Considering other (less local) memory
accesses performed by the pipeline (like texturing and shader storage)
would be useful (and could be considered by this algorithm with little
modification), but it would be pretty difficult to estimate the L3
cache consumption per pixel of such accesses based on static analysis
of the pipeline state alone without some sort of dynamic feedback.
The present algorithm returns a config with tile area large enough to
utilize a target fraction of the L3, which can be adjusted to obtain
greater/lower utilization of the L3 at the cost of higher/lower risk
of L3 cache thrashing respectively. The aspect ratio of the tile
layout returned attempts to minimize the number of poorly utilized
tiles around the boundaries of the framebuffer (due to partial
coverage), since having the tile sequencer process additional tiles
comes at a cost due to the latency of the additional passes, even if
they're mostly empty. Finally, among the solutions with satisfactory
cache footprint and tile count, the tile aspect ratio closest to 1 is
returned where possible, since tiles with very high aspect ratios can
have a negative impact on cache locality.
The algorithm is primarily intended for TBIMR, but it could be used
for PTBR as well with little modifications, since the TBIMR-specific
assumptions are few and noted in comments below.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25493>
Sync xe_drm.h with commit xxxxx ("drm/xe/uapi: Fix naming of XE_QUERY_CONFIG_MAX_EXEC_QUEUE_PRIORITY").
One not so straght forward change is that sync VM binds now don't
require a syncobj anymore, the uAPI will return as soon the VM bind
operations are done.
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25300>
Make intel_aux_map_add_mapping return false if a mapping is attempted
that would conflict with an existing one. If this function doesn't
return false, it will either fail to return or return true.
The Vulkan driver will make use of this feature to opportunistically
enable CCS if a BO's VMA range has not been already mapped.
Reviewed-by: Jianxun Zhang <jianxun.zhang@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25003>
In future patches, we will be creating a separate companion RCS engine
and each engine is created with it's own address space, and we really
don't want. CCS and RCS engine writes should be visible to each other in
order to get the wait/signal mechanism working.
v2:
- Move drm_i915_gem_context_create_ext_setparam out of if block (Lionel)
Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23661>
