We want to replace ilo_zs_surface with ilo_state_zs. One noteworthy
difference is that ilo_state_zs always aligns level 0 to 8x4 when HiZ is
enabled. HiZ will not be enabled for 1D surfaces as a result.
It needs be set to R/W only when using certain messages via DP render cache.
Since we only use RT wrties with the render cache, we never need to set it.
The only use of lp_profile() is wrapped in #if defined(PROFILE),
so there is no reason to build it unless this macro is defined.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This helped find the incorrect HALIGN values from the previous patches.
v2: Add PRM references for assertions (Chad)
v3: Remove duplicated part of commit message, assert num_samples > 1, instead of
num_samples > 0. (Chad)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chad Versace <chad.versace@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Just like the previous patch, but for the GEN9 constraints.
v2:
bugfix: Gen9 HALIGN was being set for all miptree buffers (Chad). To address
this, move the check to where the gen8 check is, and do the appropriate
conditional there.
v3:
Remove stray whitespace introduced in v2 (Chad)
Rework comment to show AUX_CCS and AUX_MCS specifically. Remove misworded part
about gen7 (Chad).
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com> (v1)
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> (v1)
Reviewed-by: Chad Versace <chad.versace@intel.com>
This restriction was attempted in this commit:
commit 4705346463
Author: Anuj Phogat <anuj.phogat@gmail.com>
Date: Fri Feb 13 11:21:21 2015 -0800
i965/gen8: Use HALIGN_16 if MCS is enabled for non-MSRT
However, the commit itself doesn't achieve the desired goal as determined by the
asserts which the next patch adds. mcs_mt is NULL (never set) we're in the
process of allocating the mcs_mt miptree when we get to this function. I didn't
check, but perhaps this would work with blorp, however, meta clears allocate the
miptree structure (which AFAICT needs the alignment also) way before it
allocates using meta clears where the renderbuffer is allocated way before the
aux buffer.
The restriction is referenced in a few places, but the most concise one [IMO]
from the spec is for Gen9. Gen8 loosens the restriction in that it only requires
this for non-msrt surface.
When Auxiliary Surface Mode is set to AUX_CCS_D or AUX_CCS_E, HALIGN 16 must
be used.
With the code before the miptree layout flag rework (patches preceding this),
accomplishing this workaround is very difficult.
v2:
bugfix: Don't set HALIGN16 for gens before 8 (Chad)
v3:
non-trivial rebase
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Cc: Neil Roberts <neil@linux.intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>
There are several constraints when determining if one can fast clear a surface.
Some of these are alignment, pixel density, tiling formats, and others that vary
by generation. The helper function which exists today does a suitable job,
however it conflates "BO properties" with "Miptree properties" when using
tiling. I consider the former to be attributes of the physical surface, things
which are determined through BO allocation, and the latter being attributes
which are derived from the API, and having nothing to do with the underlying
surface.
Determining tiling properties and creating miptrees are related operations
(when we allocate a BO for a miptree) with some disjoint constraints. By
extracting the decisions into two distinct choices (tiling vs. miptree
properties), we gain flexibility throughout the code to make determinations
about when we can or cannot fast clear strictly on the miptree.
To signify this change, I've also renamed the function to indicate it is a
distinction made on the miptree. I am torn as to whether or not it was a good
idea to remove "non_msrt" since it's a really nice thing for grep.
v2:
Reword some comments (Chad)
intel_is_non_msrt_mcs_tile_supported->intel_tiling_supports_non_msrt_mcs (Chad)
Make full if ladder for gens in above function (Chad)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Cc: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
For GEN9, much of the logic to use X-Tiled buffers has been stripped out. It is
still supported in some places, but it's never desirable. Unfortunately we don't
yet have the ability to have Y-Tiled scanout (see:
http://patchwork.freedesktop.org/patch/46984/),
NOTE: This patch shouldn't actually do anything since SKL doesn't yet use fast
clears (they are disabled because they are causing regressions). THerefore, the
only case we can get to this function on SKL is by way of
intel_update_winsys_renderbuffer_miptree.
v2: Update commit message to be more clear that the NOTE is for SKL only.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chad Versace <chad.versace@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
I think pretty much everyone agrees that having more than a single bool as a
function argument is bordering on a bad idea. What sucks about the current
code is in several instances it's necessary to propagate these boolean
selections down to lower layers of the code. This requires plumbing (mechanical,
but still churn) pretty much all of the miptree functions each time. By
introducing the flags paramater, it is possible to add miptree constraints very
easily.
The use of this, as is already the case, is sometimes we have some information
at the time we create the miptree that needs to be known all the way at the
lowest levels of the create/allocation, disable_aux_buffers is currently one
such example. There will be another example coming up in a few patches.
v2:
Tab fix. (Ben)
Long line fixes (Topi)
Use anonymous enum instead of #define for layout flags (Chad)
Use 'X != 0' instead of !!X (everyone except Chad)
v3:
Some non-trivial conflict resolution on top of Anuj's patches.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Cc: "Pohjolainen, Topi" <topi.pohjolainen@intel.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This will be used to implement the Gateway Barrier SEND needed to implement
the barrier function.
v2:
* notify => gateway_notify (Ken)
* combine short lines of brw_barrier proto/decl (mattst88)
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Marek Olšák
Chia-I Wu
Tom Stellard
Timothy Arceri
Ben Widawsky
Jordan Justen