Zink on Anv running Gfxbench gl_driver2 is significantly slower than
Iris.
The reason is simple, whereas Iris implements uniform updates using
push constants and only has to emit 3DSTATE_CONSTANT_* packets, Zink
uses push descriptors with a uniform buffer, which on our
implementation use both push constants & binding tables.
Anv ends up doing the following for each uniform update :
- allocate 2 surface states :
- one for the uniform buffer as the offset specify by zink
- one for the descriptor set buffer
- pack the 2 RENDER_SURFACE_STATE
- re-emit binding tables
- re-emit push constants
Of all of those operations, only the last one ends up being useful in
this benchmark because all the uniforms have been promoted to push
constants.
This change defers the 3 first operations at draw time and executes
them only if the pipeline needs them.
Vkoverhead before / after :
descriptor_template_1ubo_push: 40670 / 85786
descriptor_template_12ubo_push: 4050 / 13820
descriptor_template_1combined_sampler_push, 34410 / 34043
descriptor_template_16combined_sampler_push, 2746 / 2711
descriptor_template_1sampled_image_push, 34765 / 34089
descriptor_template_16sampled_image_push, 2794 / 2649
descriptor_template_1texelbuffer_push, 108537 / 111342
descriptor_template_16texelbuffer_push, 20619 / 20166
descriptor_template_1ssbo_push, 41506 / 85976
descriptor_template_8ssbo_push, 6036 / 18703
descriptor_template_1image_push, 88932 / 89610
descriptor_template_16image_push, 20937 / 20959
descriptor_template_1imagebuffer_push, 108407 / 113240
descriptor_template_16imagebuffer_push, 32661 / 34651
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19050>
VUID-VkPipelineLayoutCreateInfo-pSetLayouts-00293
pSetLayouts must not contain more than one descriptor set layout
that was created with
VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT_KHR set
There is only one push descriptor set with all the descriptor sets, so
no need to have an array.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19050>
This change implements 3 states in one go:
- depth clamp enable
- depth clip enable
- depth clip negative one to one
This affects following packets:
3DSTATE_CLIP
3DSTATE_VIEWPORT_STATE_POINTERS_CC
3DSTATE_RASTER
v2: remove clip enable bit check from viewport emit (Lionel)
v3: use helper function from runtime to get depth clip (Lionel)
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18879>
Timestamp read is not in any hot path so there is no down-sides in
share the same function between iris, crocus, anv and hasvk.
Also while at it also dropping the functions to read MMIO from kernel,
the only use is read render timestamp so we don't need it.
v2:
- fix compilaton of ds
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18920>
Things are a bit confusing because we use the term "scratch" for 2
different things :
* the buffer for register allocation spilling
* the buffer for storing live values between splitted shaders around shader calls
Here we're fixing the missing register allocation spilling buffer.
v2: update comments (Caio)
fix scratch bo size computation with pipeline libraries (Lionel)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16970>
Intel has different Z interpolation float point rounding
than other mesa gpus
For example gl_Position.z = 0.0 will be interpolated to
gl_FragCoord.z = 0.5 for all gpus
gl_FragCoord = -0.00000001 will be interpolated to
gl_FragCoord.z = 0.4999999702 for Intel
and rounded to gl_FragCoord.z = 0.5 for other gpus
Games with LEQUAL depth func will fail depth test on Intel
and will pass it on other gpus in such case
This workaround lowers translated depth range
and several gl_FragCoord.z coords with extra small difference
will be translated to the same UINT16\UINT24\UINT32
value of an integer depth buffer
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/7199
Signed-off-by: Illia Polishchuk <illia.a.polishchuk@globallogic.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18412>
We found a perf regression with 9027c5df4c ("anv: remove the
LOCAL_MEM allocation bit") which seems to be that we over subscribe
local memory, leading i915 to swap things in/out too much.
This change avoid putting buffers in local memory if they are not
allocated from a DEVICE_LOCAL heap.
Maybe we can revisit this later if i915 is better able to deal with
more buffers in local memory.
v2: Remove implicit_css from anv_bo when not in lmem (Ivan)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 9027c5df4c ("anv: remove the LOCAL_MEM allocation bit")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/7188
Reviewed-by: Ivan Briano <ivan.briano@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18395>
