It's true for depth HiZ clears because we only have HiZ on single-slice
images right now. However, for stencil-only clears there is no such
restriction.
Tested-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
If we don't have HiZ, then anv_layout_to_aux_usage will return NONE for
both layouts. If the two layouts are the same, they will get the aux
usage. In either case, the code below will give us ISL_AUX_OP_NONE and
we'll return without doing anything.
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
This is quite a bit cleaner because we now sync the clear values at the
same time as we do the fast clear. For loading the clear values into
the surface state, we now do it once when we handle the LOAD_OP_LOAD
instead of every subpass.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This requires us to ditch the VkAttachmentReference struct in favor of
an anv-specific struct. However, we can now easily identify from just
the subpass attachment what kind of an attachment it is. This will make
iteration over anv_subpass::attachments a little easier in some case.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This moves the decision out of begin_subpass and into BeginRenderPass
like the decision for color clears. We use a similar name for the
function for depth/stencil as for color even though no aux usage is
really getting computed.
v2 (Jason Ekstrand):
- Don't always disable HiZ clears by accident
- Use the initial layout to decide whether to do fast clears
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This doesn't really change much now but it will give us more/better
control over clears in the future. The one interesting functional
change here is that we are now re-emitting 3DSTATE_DEPTH_BUFFERS and
friends for each clear. However, this only happens at begin_subpass
time so it shouldn't be substantially more expensive.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This is a bit less awkward than passing in the subpass because it means
we don't have to extract the subpass id from the subpass.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This seems slightly more correct because it means that the flushes
happen before any clears or resolves implied by the subpass transition.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Previously, we just used all the channels regardless of the format.
This is less than ideal because some channels may have undefined values
and this should be ok from the client's perspective. Even though the
driver should do the correct thing regardless of what is in the
undefined value, it makes things less deterministic. In particular, the
driver may choose to fast-clear or not based on undefined values. This
level of nondeterminism is bad.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
The PIPE_CONTROL command description says:
"Whenever a Binding Table Index (BTI) used by a Render Taget Message
points to a different RENDER_SURFACE_STATE, SW must issue a Render
Target Cache Flush by enabling this bit. When render target flush
is set due to new association of BTI, PS Scoreboard Stall bit must
be set in this packet."
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
The previous code was trying to avoid non-existent layers by taking a
MAX with anv_image_aux_layers. Unfortunately, it wasn't taking into
account that layer_count starts at base_layer which may not be zero.
Instead, we need to subtract base_layer from anv_image_aux_layers with
a guard against roll-over.
Fixes: de3be61801 "anv/cmd_buffer: Rework aux tracking"
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Now that we're tracking aux properly per-slice, we can enable this for
applications which actually care.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This commit completely reworks aux tracking. This includes a number of
somewhat distinct changes:
1) Since we are no longer fast-clearing multiple slices, we only need
to track one fast clear color and one fast clear type.
2) We store two bits for fast clear instead of one to let us
distinguish between zero and non-zero fast clear colors. This is
needed so that we can do full resolves when transitioning to
PRESENT_SRC_KHR with gen9 CCS images where we allow zero clear
values in all sorts of places we wouldn't normally.
3) We now track compression state as a boolean separate from fast clear
type and this is tracked on a per-slice granularity.
The previous scheme had some issues when it came to individual slices of
a multi-LOD images. In particular, we only tracked "needs resolve"
per-LOD but you could do a vkCmdPipelineBarrier that would only resolve
a portion of the image and would set "needs resolve" to false anyway.
Also, any transition from an undefined layout would reset the clear
color for the entire LOD regardless of whether or not there was some
clear color on some other slice.
As far as full/partial resolves go, he assumptions of the previous
scheme held because the one case where we do need a full resolve when
CCS_E is enabled is for window-system images. Since we only ever
allowed X-tiled window-system images, CCS was entirely disabled on gen9+
and we never got CCS_E. With the advent of Y-tiled window-system
buffers, we now need to properly support doing a full resolve of images
marked CCS_E.
v2 (Jason Ekstrand):
- Fix an bug in the compressed flag offset calculation
- Treat 3D images as multi-slice for the purposes of resolve tracking
v3 (Jason Ekstrand):
- Set the compressed flag whenever we fast-clear
- Simplify the resolve predicate computation logic
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Even though the blorp pass looks a bit on the sketchy side, the end
result in the Vulkan driver is very nice. Instead of having this weird
case where you do a fast clear and then maybe have to resolve, we just
do the ambiguate and are done with it. The ambiguate does exactly what
we want of setting all the CCS values to 0 which puts it into the
pass-through state.
This should also improve performance a bit in certain cases. For
instance, if we did a transition from UNDEFINED to GENERAL for a surface
that doesn't have CCS enabled all the time, we would end up doing a
fast-clear and then a full resolve which ends up touching every byte in
the main surface as well as the CCS. With the ambiguate pass, that
transition only touches the CCS.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Now that this isn't a multi-case if and it's just the one case, it's a
bit clearer if the condition is just part of the if instead of being
pulled out into a boolean variable.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
The current strategy we use for managing resolves has an issues where we
track clear colors and the need for resolves per-LOD but we still allow
resolves of only a subset of the slices in any given LOD and doing so
sets the "needs resolve" flag for that LOD to false while leaving the
remaining layers unresolved. This patch is only the first step and does
not, by itself fix anything. However, it's fairly self-contained and
splitting it out means any performance regressions should bisect to this
nice obvious commit rather than to the giant "rework aux tracking"
commit.
Nanley and I did some testing and none of the applications we tested
even tried to fast-clear anything other than the first slice of an
image. The test was done by adding a printf right before we call
blorp_fast_clear if we were every going to touch any slice other than
the first with a fast-clear. Due to the way the original code was
structured, this would not have included applications which only cleared
a subset of layers. The applications tested were:
* All Sascha Willems demos
* Aztec Ruins
* Dota 2
* The Talos Principle
* Mad Max
* Warhammer 40,000: Dawn of War III
* Serious Sam Fusion 2017: BFE
While not the full list of shipping applications, it's a pretty good
spread and covers most of the engines we've seen running on our driver.
If this is ever shown to be a performance problem in the future, we can
reconsider our strategy.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Currently, this helper does nothing but we call it every place where an
image is written through the render pipeline. This will allow us to
properly mark the aux state so that we can handle resolves correctly.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This moves it to being based on layout_to_aux_usage instead of being
hard-coded based on bits of a priori knowledge of how transitions
interact with layouts. This conceptually simplifies things because
we're now using layout_to_aux_usage and layout_supports_fast_clear to
make resolve decisions so changes to those functions will do what one
expects.
There is a potential bug with window system integration on gen9+ where
we wouldn't do a resolve when transitioning to the PRESENT_SRC layout
because we just assume that everything that handles CCS_E can handle it
all the time. When handing a CCS_E image off to the window system, we
may need to do a full resolve if the window system does not support the
CCS_E modifier. The only reason why this hasn't been a problem yet is
because we don't support modifiers in Vulkan WSI and so we always get X
tiling which implies no CCS on gen9+. This patch doesn't actually fix
that bug yet but it takes us the first step in that direction by making
us actually pick the correct resolve op. In order to handle all of the
cases, we need more detailed aux tracking.
v2 (Jason Ekstrand):
- Make a few more things const
- Use the anv_fast_clear_support enum
v3 (Jason Ekstrand):
- Move an assert and add a better comment
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This replaces image_fast_clear and ccs_resolve with two new helpers that
simply perform an isl_aux_op whatever that may be on CCS or MCS. This
is a bit cleaner as it separates performing the aux operation from which
blorp helper we have to call to do it.
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
If we ever hit this edge-case, it can theoretically cause problem for
CNL because we could end up changing render targets without re-emitting
3DSTATE_MULTISAMPLE which is part of the pipeline. Just get rid of the
edge case.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
I got reviews and fixed the patches locally, but ended up merging the
ones that I sent originally to the list. This patch fixes those
mistakes.
Fixes: 78c125af39
Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Similar to the GL driver, ignore 3DSTATE_CONSTANT_* packets when doing a
context restore.
Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: "18.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
We need to access the pipeline layout to compute correct dynamic
offsets for dyamic UBO/SSBO descriptors when we emit draw commands.
Instead of taking it from the pipeline object, store the layout
in the command buffer pipeline state.
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
While we're here, make it an anv_address.
Tested-by: Józef Kucia <joseph.kucia@gmail.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Cc: "18.0" <mesa-stable@lists.freedesktop.org>
The Vulkan spec says:
"pipelineBindPoint is a VkPipelineBindPoint indicating whether the
descriptors will be used by graphics pipelines or compute pipelines.
There is a separate set of bind points for each of graphics and
compute, so binding one does not disturb the other."
Up until now, we've been ignoring the pipeline bind point and had just
one bind point for everything. This commit separates things out into
separate bind points.
Tested-by: Józef Kucia <joseph.kucia@gmail.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102897
Cc: "18.0" <mesa-stable@lists.freedesktop.org>
Initially, these just contain the pipeline in a base struct.
Tested-by: Józef Kucia <joseph.kucia@gmail.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Cc: "18.0" <mesa-stable@lists.freedesktop.org>
There are several places where we'd already saved the pipeline off to a
temporary variable but, due to an artifact of history, weren't actually
using that temporary everywhere. No functional change.
Tested-by: Józef Kucia <joseph.kucia@gmail.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Cc: "18.0" <mesa-stable@lists.freedesktop.org>
After executing a secondary command buffer, we need to update certain
state on the primary command buffer to reflect changes by the secondary.
Otherwise subsequent commands may not have the correct state set.
This fixes various issues (rendering errors, GPU hangs) seen after
executing secondary command buffers in some cases.
v2 (Jason Ekstrand):
- Reset to invalid values instead of pulling from the secondary
- Change the comment to be more descriptive
Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: mesa-stable@lists.freedesktop.org
Apparently, Geminilake requires you to whack a chicken bit to select
either compute or tessellation mode for barriers. The recommendation
is to switch between them at PIPELINE_SELECT time.
We may not need to do this all the time, but I don't know that it hurts
either. PIPELINE_SELECT is already a pretty giant stall.
This appears to fix hangs in tessellation control shaders with barriers
on Geminilake. Note that this requires a corresponding kernel change,
drm/i915: Whitelist SLICE_COMMON_ECO_CHICKEN1 on Geminilake.
in order for the register write to actually happen. Without an updated
kernel, this register write will be noop'd and the fix will not work.
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
This was never enabled in secondary buffers because hiz_enabled was
never set to true for those.
If the app provides a framebuffer in the inheritance info when beginning
a secondary buffer, we can determine if HiZ is enabled and therefore
allow the PMA optimization to be enabled within the command buffer.
This improves performance by ~13% on an internal benchmark on Skylake.
v2: Use anv_cmd_buffer_get_depth_stencil_view().
Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
In order to do this we have to modify push constant set up to handle
ranges. We also have to tweak the way we handle dirty bits a bit so
that we re-push whenever a descriptor set changes.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
There are several places where we look up opcodes in an array of stages.
Assert that the we don't end up going out-of-bounds.
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Jason Ekstrand
Anuj Phogat
Rafael Antognolli
Iago Toral Quiroga
Alex Smith
Kenneth Graunke