In the case where we're rendering on the Intel GPU, but displaying
on an AMD and NVIDIA GPU, we need to follow their pitch requirements
for our linear scanout buffers.
Based on a patch by Lionel Landwerlin.
Closes: #4706
Reviewed-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10895>
One exception is src/amd/addrlib/, for which -Wimplicit-fallthrough is
explicitly disabled.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Reviewed-by: Juan A. Suarez <jasuarez@igalia.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10220>
Thanks to Felix Degrood for discovering that we missed enabling this
additional caching on Tigerlake! Felix also benchmarked the changes.
We now use MOCS 48 (HDC:L1 + L3 + LLC) for render targets, textures,
and pull constant buffers. We leave storage buffers & images, as well
as stateless messages, using the previous MOCS 2 value. We can't use
HDC:L1 with atomics, and we don't know a priori whether storage buffers
will be used with atomics or not. Similarly, the Vulkan buffer device
address feature allows atomics to be performed on buffers via stateless
messages, and we only can control MOCS at the base address level, so
we can't do much there.
This is closer to what the Windows Vulkan and OpenGL drivers do,
though it isn't quite the same - they also disable LLC in some cases,
but we observed this to have noticable performance regressions when
we tried (though a couple titles benefited). We may try experiment
with that in the future.
Improves performance in a number of titles:
- Unreal Engine 4 Shooter Demo [VK]: 11.8%
- Witcher 3 [DXVK]: 3.9%
- Rise of the Tomb Raider [VK]: 1.5%
- Shadow of the Tomb Raider [VK]: 1.0%
- Grand Theft Auto V [DXVK]: 0.8%
We did not observe any performance regressions.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7104>
On Gen12+, we can enable additional caches in certain usage situations.
This routes that decision making to a central place in ISL, based on
surface usage flags, and updates both drivers to use it. (i965 doesn't
need to change because it doesn't support Gen12.)
We continue handling the "external" decision via an anv_mocs() wrapper
for now, since we store that flag in anv_bo, which isl doesn't know
about. (We could introduce an ISL_SURF_USAGE_EXTERNAL, but I'm not
actually sure that would be cleaner.)
This patch should not have any functional nor performance effects, as
we continue selecting the exact same MOCS values for now.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7104>
I can't find a restriction for enabling CCS on these surfaces in recent
versions of the Bspec. Since I didn't cite my source, I'm not even sure
such a restriction existed in the first place.
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7085>
* Define ISL equivalents for the P010, P012, and P016 formats.
* Add aux-map encodings for the YUV formats iris will soon support.
v2. Replace &&'s with ||'s in isl_format_is_planar() (Lionel)
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6486>
Drop unnecessary check which allows enabling of lossless write through
compression (HiZ + CCS) for D16_UNORM format on Gen12+.
We had misleading HSD information previously which used to claim that
compression can not be supported for 16bpp format. Although BSpec does
not have any restriction for D16_UNORM format.
Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6485>
This refactor breaks out a new isl_surf_supports_ccs function which does
most of the validity checking. The isl_surf_get_ccs_surf function calls
this function and then dives right into constructing the CCS aux_surf.
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4100>
Untyped messages are only use on Gen9+ for UBOs and SSBOs. They will
never be used on anything using an isl_surf.
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4100>
Those format have correct descriptions already with the exception of
the planar format. In that case we introduce an assert.
This fine because we don't use the planar format in any of our
drivers. There are restrictions on how the addresses of the 2 planes
are relative to one another which make this annoying. The sampler is
also more limited than what we can do with a shader snippet.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2999>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2999>
When the caller of the isl_surf_init() specifies a row pitch, do not
consider the minimum CCS requirement if it's incompatible with the
caller's value.
isl_surf_get_ccs_surf() will check that the main surface alignment
matches CCS expectations.
v2: Simplify checks (Nanley)
v3: Add Comment about isl_surf_get_ccs_surf() (Jason)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
Fixes: a3f6db2c4e ("isl: drop CCS row pitch requirement for linear surfaces")
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4243>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4243>
We could be creating a Y-tiled surface that isn't going to use CCS
(this could be the case when clearly indicated through modifiers).
Don't apply the main surface pitch alignment constraint in that case.
v2: Use logical NOT (Sagar)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: a3f6db2c4e ("isl: drop CCS row pitch requirement for linear surfaces")
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4243>
We're missing a requirement for alignment of row pitch for the display
HW. In linear tiling, the row pitch must be a 64bytes aligned.
v2: Use correct formula to align to 64bytes (Chad)
v3: Matching {} (Jason)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4243>
We also delete the badly named isl_surf_supports_hiz_ccs_wt. The name
is misleading because it doesn't return whether or not the surface
supports HiZ+CCS in write-through mode (any single-sampled HiZ+CCS
capable surface does) but rather a heuristic decision about whether or
not we want to enable write-through mode based on the usage flags in the
isl_surf.
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4056>
GEN:BUG:14010455700 (lineage 1808121037):
"To avoid sporadic corruptions “Set 0x7010[9] when Depth Buffer
Surface Format is D16_UNORM , surface type is not NULL & 1X_MSAA"
Required for fixing ttps://gitlab.freedesktop.org/mesa/mesa/issues/2501.
GEN:BUG:1806527549:
"Set HIZ_CHICKEN (7018h) bit 13 = 1 when depth buffer is D16_UNORM."
This one could fix a GPU hang in some workloads.
v2: Implement WA in isl and add another similar WA (Jason).
v3: Add flushes before changing chicken registers (Jason)
v4: Depth flush and stall + end of pipe sync when changing registers
(Jason).
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3801>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3801>
We were applying row pitch constraint of CCS surfaces to linear
surfaces. But CCS is only supported in linear tiling under some
condition (more on that in the following commit). So let's drop that
requirement for now.
Fixes a bunch of crucible assert where the byte size of a linear image
is expected to be similar to the byte size of buffer for the same
extent in the following category :
func.miptree.r8g8b8a8-unorm.aspect-color.view-2d.*download-copy-with-draw.*
v2: Move restriction to isl_calc_tiled_min_row_pitch()
v3: Move restrinction to isl_calc_row_pitch_alignment() (Jason)
v4: Update message (Lionel)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 07e16221d9 ("isl: Round up some pitches to 512B for Gen12's CCS")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3551>
If aux for MCS is already configured, don't configure again.
v2: Fix missing period in commit message (Nanley Chery)
Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Add a helper to determine if an ISL surface supports the write-through
mode of HIZ_CCS.
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Add an extra aux parameter which will be filled out with CCS if the
first two isl_surf parameters fit the requirements for HiZ_CCS.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
