docs: use code-tags for envvars and options

This makes it a bit easier to tell what's what.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: use dl instead of ul

A HTML definition-list is more semantically strong than just some
unordered list, and renders a bit cleaner by default. So let's use that
instead.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Acked-by: Eric Engestrom <eric.engestrom@intel.com>

docs: remove pointlessly repeated list

The examples listed above are exactly the same ones are we're about to
list, so let's just keep the list that defines what they do.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: remove stray whitespace

There's some stray whitespace in these files that doesn't do anything
useful. Let's get rid of if.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: use proper links instead of code-tags

These links are a bit odd in that the URLs are simply placed in
code-tags. This makes them harder to work with. Let's use proper
links instead.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: update doxygen-links

One of these URLs are dead these days, and the other one forwards to the
current one, doxygen.nl. Let's get these links up to date.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: remove some noisy spacing in pre-blocks

These newlines caused the blocks to have trailing newlines in them,
which renders a bit noisily.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: improve quoting slightly

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: do not use br-tag for non-significant breaks

According to the W3C, we shouldn't use the br-tag unless the line-break
is part of the content:

https://www.w3.org/TR/2011/WD-html5-author-20110809/the-br-element.html

All of these instances are for non-content usage, and is as such technically
out-of-spec. So let's either remove them, or split paragraphs, based on
how related the content are.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: remove pointless line-break

Line-breaks at the end of a paragraph doesn't do anything useful,
so let's just get rid of it.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: remove pointless trailing hard-breaks

Line-break at the end of an article is quite pointless, and doesn't do
much to increase the readability. Let's get rid of them.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: rewrite paragraph to be free-form

These half-way structured sections are needlessly problematic to
translate cleanly to other markup-languages, so let's just make this
into a free-form paragraph instead.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: use h4 instead of free-standing paragraphs and br-tags

This makes this document a bit more structured, which is generally
considered a good thing for HTML. It will also translate a bit better
into other markup-formats.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: slightly reword paragraph and tweak markup

This makes this paragraph a bit easier to digest.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: remove stray space in code-block

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: remove some pointless spacing

The different headers and header-sizes already convey the hierarchical
structure of this document, the unusual spacing arguably just looks a
bit inconsistent with the rest of the site. Let's remove it; it looks
fine without it, and will translate better to other markup languages.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: add more more code-tags

It's easier to read function-names, file-names and other
"machine"-related strings if they are formatted in a monospace font. So
let's mark these up with code-tags.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: use code instead of tt-tag

The tt-tag has been removed from HTML5, so let's normalize this to
code-tags intead. This just makes things a bit more consistent, as we've
mixed these left and right so far anyway.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: use paragraph instead of double newlines

This is a bit more semantically clean in HTML, and makes us keep
content and presentation a bit more separated.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

docs: use verbatim .plan quote

This quote is now verbatim, as archived here:

https://github.com/ESWAT/john-carmack-plan-archive/blob/master/by_year/johnc_plan_1999.txt

This makes it look a bit more consistent with the following news-entry,
and makes things IMO a bit more clear.

Signed-off-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

panfrost/midgard: Verify SSA claims when pipelining

The pipeline register creation algorithm is only valid for SSA indices;
NIR registers and such cannot be pipelined without more complex
analysis. However, there are the ocassional class of "liars" -- indices
that claim to be SSA but are not. This occurs in the blend shader
prologue, for example. Detect this and just bail quietly for now.

Eventually we need to rewrite the blend shader prologue to occur in NIR
anyway (which would mitigate the issue), but that's more involved and
depends on a better understanding of pixel formats in blend shaders (for
non-RGBA8888/UNORM cases).

Fixes some blend shader regressions.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost/midgard: Don't assign var locations ourselves

This piece of code was cargo-culted from the ir3 standalone compiler and
made sense when we were a standalone compiler ourselves. Unfortunately,
for the online compiler, mesa/st *already handles this for us* and if we
duplicate it here, we're duplicating it *incorrectly*. So just delete
these lines and fix a heck of a lot of tests.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Reload framebuffer contents if there's no clear

If by flush time the client hasn't submitted a clear, add jobs for
reloading the framebuffer contents as the first draw in the frame.

This is required by programs such as Weston which don't do clears and
rely on the previous contents of the framebuffer being there.

Reloading the whole framebuffer on every frame without regards to what
is needed or what is going to be covered is very inefficient, but future
work will introduce support for damage regions and partial updates so we
know what needs to be actually reloaded.

Fixes quite a few tests in dEQP-EGL.functional.buffer_age.*.

[Alyssa: The context is that tilers do an implicit glClear() on every
frame, whether you asked them to or not. If you want a clear, this is
very efficient. But if you don't, you have to explicitly blit the
backbuffer back into tile memory, accomplished by a dummy texturing
draw. This patch generates that draw via u_blitter, although we could do
a bit better ourselves by eliding the vertex job. This fixes "black
rectangles in Weston/sway" as well as "video not displaying when UI
visible in mpv"]

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost: Don't flip scanout

The mesa/st flips the viewport, so we respect that rather than
trying to flip the framebuffer itself and ignoring the viewport and
using a messy heuristic.

However, this brings an underlying disagreement about the interpretation
of winding order to light. The blob uses a different strategy than Mesa
for handling viewport Y flipping, so the meanings of the winding order
bit are flipped for it. To keep things clean on our end, we rename to
explicitly use Gallium (rather than flipped OpenGL) conventions.

Fixes upside-down Xwayland/egl windows.

v2: Adjust lowering configuration to correctly flip gl_PointCoord.y and
gl_FragCoord.y. v1 was R-b'd by Tomeu, but then retracted due to these
regressions which are not fixed.

Suggested-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Sort-of-reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>

st/nine: Use tgsi_to_nir when preferred IR is NIR.

This patch allows nine to read the preferred IR from pipe caps and use
NIR when that is preferred by the driver, by calling tgsi_to_nir. Also
adds some debug options that allow overriding it.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Axel Davy <davyaxel0@gmail.com>

intel/perf: improve dynamic loading config detection

We're currently trying to detect dynamic loading config support by
trying to remove to test config (hard coded in the i915 driver) and
checking we get ENOENT.

This can fail if the test config was updated in Mesa but not yet in
i915.

A better way to do this is to pick an invalid ID and check for ENOENT.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/nir: Take nir_shader*s in brw_nir_link_shaders

Since NIR_PASS no longer swaps out the NIR pointer when NIR_TEST_* is
enabled, we can just take a single pointer and not a pointer to pointer.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/nir: Stop returning the shader from helpers

Now that NIR_TEST_* doesn't swap the shader out from under us, it's
sufficient to just modify the shader rather than having to return in
case we're testing serialization or cloning.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

nir: Don't replace the nir_shader when NIR_TEST_SERIALIZE=1

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108957
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Rob Clark <robdclark@chromium.org>

nir: Don't replace the nir_shader when NIR_TEST_CLONE=1

Instead, we add a new helper which stomps one nir_shader and replaces it
with another.  The new helper effectively just changes which pointer
gets used for the base nir_shader.  It should be 99% as good at testing
cloning but without requiring that everything handle having the shader
swapped out from under it constantly.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108957
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Rob Clark <robdclark@chromium.org>

iris: Only recompile CS when needed

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>

intel/perf: fix EuThreadsCount value in performance equations

EuThreadsCount is supposed to be the number of threads per EU, not the
total number of threads in the whole device.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 1fc7b951278428 ("i965: Add Gen8+ INTEL_performance_query support")
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/tools: use C99 print conversion specifier for 32 bit builds

Fixes formatting errors for 32 bit compilations, eg:

  error: format ‘%lx’ expects argument of type ‘long unsigned int’,
  but argument 5 has type ‘uint64_t’ {aka ‘long long unsigned int’}
  [-Werror=format=]

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

radv: use only one descriptor in the fmask expand pass

This removes one useless SMEM load operations which pointed to
the same descriptor anyway.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-By: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

radv: set ACCESS_NON_READABLE on the fmask expand pass output image

The driver will emit GLC=1.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-By: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

radv: remove one useless image type in the fmask expand shader

Both input and output images use the same type.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-By: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

freedreno/ir3: Extend debug helpers to support TCS/TES/GS

Reviewed-by: Rob Clark <robdclark@gmail.com>

freedreno/a6xx: Use VALIDREG in next_regid() helper

Reviewed-by: Rob Clark <robdclark@gmail.com>

freedreno/a6xx: Remove dead code from a5xx

Reviewed-by: Rob Clark <robdclark@gmail.com>

freedreno/ir3: Generalize ir3_shader_disasm()

Use a helper function to get the sysval/attribute/varying/output name
and make the disam debug output independent of shader stage.

Reviewed-by: Rob Clark <robdclark@gmail.com>

panfrost/midgard: Always break up fragment writeout

In a fragment shader, r0 is written out with a special branch sequence.
r0 is not a real register here, but essentially a pipeline register --
as such, it needs to be written out in full and on time, with hanging
dependencies in the bundle. Otherwise, we break up the bundle, which
costs an extra ALU cycle and adds a move.

When the scheduler ran last thing, we could do this analysis within the
scheduler. Now that RA can run after scheduling, that's no longer valid,
so we remove the analysis and always break it up (at a performance
penalty). Future work can add a post-RA/post-schedule pass to merge
writeout blocks if possible. It's a bit of a low-priority next to fixing
conformance regressions, of course.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

panfrost/midgard: Fix cubemap regression

Fixes: 2d9802233 ("panfrost/midgard: Extend RA to non-vec4 sources")
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

winsys/drm: Fix out of scope variable usage

In this particular instance, struct member were used outside of the
block where it was defined. Fix this by moving the definition outside of
block.

Signed-off-by: Deepak Rawat <drawat@vmware.com>
Fixes: 569f83898768 ("winsys/svga: Add support for new surface ioctl, multisample pattern")
Reviewed-by: Brian Paul <brianp@vmware.com>

panfrost/midgard: Lower integer division

We use the shared nir_lower_idiv pass to lower integer division, fixing
144 dEQP tests. This pass was not applied in the past due to breakage
from iabs fixed earlier in the series.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-By: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Fix 1-arg ALU memory corruption

Certain ops that only take one argument have an imaginary "zero"
constant for their second argument. For instance, conversions:

   i2f [dest], [source], #0

Memory corruption meant that #0 was instead random noise. For some ops,
that doesn't matter (manifested as abnormally large code size and poor
scheduling due to extra constants in random places). But for others,
where a 1-op is emulated by a 2-op with an implicit 0 second argument,
that broke things.

Fixes iabs (emulated by iabsdiff).

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-By: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Add a bunch of new ALU ops

These ops are used to accelerate various functions exposed in OpenCL.
This commit only includes the routine additions to the table. They are
not wired through the compiler; rather, they are just here to keep a
reference for the disassembler.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-By: Ryan Houdek <Sonicadvance1@gmail.com>

egl: add EGL_platform_device support

This new 'platform' is added by default with no guards.

It is effectively a copy of the surfaceless one, with updated function
names and brand new probe function.

Due to the reuse, some of the ifdef HAVE_SURFACELESS_PLATFORM guards
have been dropped.

A worthy mention are the changes in _egFindDisplay, since the original
and dup'd fd are required, we make use of the plat_opt argument.

Note that no hacks for eglGetDisplay are added - the API works only with
the eglGetPlatformDisplay* API.

v2:
 - s/_eglCompareDeviceDisplay/_eglSameDeviceDisplay/ (Eric)
 - let ^^ return bool (Eric)
 - fixup meson build, move files() further up (Eric)
 - copy from plat. surfaceless w/o the visual cleanups
 - close and free when destroying the dpy
 - sprinkle a few _eglDeviceSupports
 - split fd handling into separate function
 - use directly the render node if no FD is given (Mathias)

v3:
 - s/dpy/disp/g
 - drop swap_buffers* callbacks
 - drop loader_set_logger()
 - drop local define
 - re-introduce _eglGetDRMDeviceRenderNode()
 - EGL_WARN on ForceSoftware with HW device - continue using the HW device
 - bail out for "EGL_MESA_device_software" until it's fixed
 - wire-up the Android build

v4:
 - use new style _eglFindDisplay()
 - split hw vs sw code paths
 - don't close the internal fd (already handled in FiniDisplay())
 - make swrast work (bit hacky bit will do for now)
 - Android for real, drop autotools
 - Correct HW + LIBGL_ALWAYS_SOFTWARE check
 - use the dri2_create_drawable() helper

v5:
 - enhance comment around fd checks (Mathias)
 - rebase for dri2_init_surface() changes

Cc: Mathias Fröhlich <Mathias.Froehlich@gmx.net>
Acked-by: Marek Olšák <marek.olsak@amd.com> (v4)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl: keep the software device at the end of the list

By default, the user is likely to pick the first device so it should
not be the least performant (aka software) one.

v2: Drop odd comment (Marek)

Suggested-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de> (v1)
Reviewed-by: Marek Olšák <marek.olsak@amd.com> (v1)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl/dri: flesh out and use dri2_create_drawable()

Wrap the loader->createNewDrawable() dance into a helper and use it
throughout the codebase.

This addresses a cases like surfaceless (SL) on swrast (SL on kms_swrast
is fine) where we'd attempt using the wrong driver and crash out.

v2: fixup quirky GBM (Mathias)
v3: fixup GBM for real (Marek)

Cc: mesa-stable@lists.freedesktop.org
Cc: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de> (v1)
Reviewed-by: Marek Olšák <marek.olsak@amd.com> (v1)
Signed-off-by: Emil Velikov <emil.velikov@collabora.com> (v2)
Signed-off-by: Marek Olšák <marek.olsak@amd.com> (v2)
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

egl: fold X11 attrib handling like other platforms

Since we no longer need special handling for X11, refactor the code to
follow the style used by all other platforms.

Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl: remove Options::Platform handling

The full set of attributes is already handled with previous patches.
Thus all this is not dead code.

v2 (Emil) - split from a larger patch.

Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl/x11: pick the user requested screen

At the moment the user will pass the screen number via attribs, yet we
would throw that away. Reason being that the int *screen passed to
xcb_connect() is output only.

v2 (Emil):
 - split from a larger patch
 - use xcb_connect() returned screen, as fallback
 - use helper function only as needed

Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl: handle the full attrib list in display::options

Earlier spec is vague, although EGL 1.5 makes it clear:

     Multiple calls made to eglGetPlatformDisplay with the same
     parameters will return the same EGLDisplay handle.

With this commit we store and compare the full attrib list.

v2 (Emil):
 - Split into separate patches
 - Use EGLBoolean over int masked as such
 - Don't return free'd pointed on calloc failure

Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl: flesh out a _eglNumAttribs() helper

Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

swr: fix support for GL_ARB_copy_image extension

This commit fix support and adjusts the capabilities
returned by the SWR driver and the documentation
to correctly report the GL_ARB_copy_image extension.

Reviewed-by: Alok Hota <alok.hota@intel.com>

etnaviv: etnaviv_bo_cache_test: Use /dev/dri/renderD128 by default

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

build: Build etnaviv drm tests

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm tests: Use mesa header locations

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: Add libdrm tests as of 922d92994267743266024ecceb734ce0ebbca808

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

build: Build etnaviv drm

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: gallium: Use internal etnaviv_drmif.h

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: s/bo_del/_etna_bo_del/

This avoids a conflict with freedreno's bo_del().

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: s/table_lock/etna_table_lock/

This avoids a conflict with freedreno's table_lock

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: Move uapi header

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: Drop excessive debugging in perfmon

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

entaviv: drm: Don't use drmMsg()

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: Use _mesa_hash_table instead of drmHash

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: Use mesa's ARRAY_SIZE

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: Use mesa's os_m{un,}map

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: Use mesa's atomic definitions

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: Drop drm_{public,private}

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: drm: Drop inexistent headers

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: Add libdrm code as of 922d92994267743266024ecceb734ce0ebbca808

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

etnaviv: untabify

Two driver files had tabs mixed with spaces. Remove the tabs.

Signed-off-by: Guido Günther <guido.gunther@puri.sm>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

panfrost: bifrost: Fix format string in disassembler

The compiler configuration was hardened to fail on format warnings and
things stopped building.

Fixes: c9c1e2610647 ("mesa: prevent common string formatting security issues")
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-By: Ryan Houdek <Sonicadvance1@gmail.com>

iris: Free the buffer when reading from the disk cache.

panfrost/midgard: Don't promote non-SSA to pipeline registers

Fixes: 33800f4612 ("panfrost/midgard: Implement "pipeline register"
prepass")

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

freedreno: Drop invalid scissor optimization.

We do support TF now, so it's no longer valid.  Besides, if we want this
optimization, we should probably have mesa/st doing it right for everyone.

Reviewed-by: Rob Clark <robdclark@gmail.com>

freedreno: Reuse glsl_get_sampler_coordinate_components().

We have the GLSL type, so we can just ask it how many coordinates there
are.  The GLSL function already has Vulkan cases that we'd probably want
eventually.

Reviewed-by: Rob Clark <robdclark@gmail.com>

freedreno: Improve the pi approximations in trig lowering.

When comparing our sin/cos behavior to the closed source driver, I
noticed that we were off by a bit (or, in the case of 1/2pi, 3 bits).

Fixes:
dEQP-GLES3.functional.shaders.random.trigonometric.vertex.52
dEQP-GLES3.functional.shaders.random.all_features.vertex.0

Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>

ac: rename LLVM <= 7 helpers for readability

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

ac: fix a typo in ac_build_wg_scan_bottom

Cc: 19.1 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

glx: Fix error message when no driverName is available

Just provide a "(null)" literal in case driverName is NULL.

  In file included from ../src/glx/dri3_glx.c:76:
  ../src/glx/dri3_glx.c: In function ‘dri3_create_screen’:
  ../src/glx/dri_common.h:70:36: error: ‘%s’ directive argument is null [-Werror=format-overflow=]
     70 | #define CriticalErrorMessageF(...) dri_message(_LOADER_FATAL, __VA_ARGS__)
        |                                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ../src/glx/dri3_glx.c:1002:4: note: in expansion of macro ‘CriticalErrorMessageF’
   1002 |    CriticalErrorMessageF("failed to load driver: %s\n", driverName);
        |    ^~~~~~~~~~~~~~~~~~~~~
  ../src/glx/dri3_glx.c:1002:50: note: format string is defined here
   1002 |    CriticalErrorMessageF("failed to load driver: %s\n", driverName);
        |                                                  ^~
  cc1: some warnings being treated as errors

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

virgl: resolve to correct level during texture read

When PIPE_TRANSFER_READ requires a resolve, we blit from the host
storage to a temporary storage, and do a format conversion from the
temporary storage to the guest storage.  This change makes sure we
convert to the correct level of the guest storage.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>

virgl: fix texture resolving with compressed formats

util_format_translate_3d expects the source box to be aligned to the
block size.  When resolving, make sure the size of the staging
buffer is aligned to the block size.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>

freedreno: Add printf pattern string.

Some new flag setting disallows it due to being a security risk.

Fixes: c9c1e261064 "mesa: prevent common string formatting security issues"
Reviewed-by: Rob Clark <robdclark@gmail.com>

Revert "vl: Enable DRM by default."

Reason:

meson.build:586:7: ERROR: Unknown variable "dep_libdrm".

if building without x11 platform.

This reverts commit 392c60928a5debbe6782ed1aa136597504bfbc5b.

panfrost/midgard: .pos propagation

A previous optimization converts fmax(x, 0.0) instructions to fmov.pos.
This pass then propagates the .pos from the move up to the source
instruction (when possible). From there, copy propagation will eliminate
the move.

In the future, we might prefer to do this in common NIR code like we do
for saturate, as Bifrost can also benefit.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Cleanup copy propagation

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Implement "pipeline register" prepass

This prepass, run after scheduling but before RA, specializes to
pipeline registers where possible. It walks the IR, checking whether
sources are ever used outside of the immediate bundle in which they are
written. If they are not, they are rewritten to a pipeline register (r24
or r25), valid only within the bundle itself. This has theoretical
benefits for power consumption and register pressure (and performance by
extension). While this is tested to work, it's not clear how much of a
win it really is, especially without an out-of-order scheduler (yet!).

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Helpers for pipeline

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Refactor schedule/emit pipeline

First, this moves the scheduler and emitter out of midgard_compile.c
into their own dedicated files.

More interestingly, this slims down midgard_bundle to be essentially an
array of _pointers_ to midgard_instructions (plus some bundling
metadata), rather than the instructions and packing themselves. The
difference is critical, as it means that (within reason, i.e. as long as
it doesn't affect the schedule) midgard_instrucitons can now be modified
_after_ scheduling while having changes updated in the final binary.

On a more philosophical level, this removes an IR. Previously, the IR
before scheduling (MIR) was separate from the IR after scheduling
(post-schedule MIR), requiring a separate set of utilities to traverse,
using different idioms. There was no good reason for this, and it
restricts our flexibility with the RA. So unify all the things!

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Cleanup RA (stylistic changes)

Trivial.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Share MIR utilities

These are more generally useful than the files they were constrained to.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Misc. cleanup for readibility

Mostly, this fixes a number of instances of lines >> 80 chars,
refactoring them into something legible.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Extend RA to non-vec4 sources

This represents a major break with the former RA design. We now use
conflicting register classes to represent the subdivision of Midgard's
128-bit registers into varying sizes and arrangement. We determine class
based on the number of components in the instructions' masks. To support
this, we include a number of helpers in the RA to allow composing
swizzles and masks, such that MIR written implicitly assuming .xyzw
sources can be transformed to use actual (non-aligned) sources.

The net result is a marked decrease in register pressure on
non-vec4-exclusive shaders. We could still be doing much better. Not
implemented yet are:

   - Register spilling
   - Per-component liveness

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Set masks on ld_vary

These masks distinguish scalar/vec2/vec3 loads from the default vec4,
which helps with assembly readability (since it's immediately obvious
how many components are _actually_ affected, rather than doing
mysterious things to an unknown number of unused components). Later in
the series, this will enable smarter register allocation, as the unused
components will not be interpreted abnormally.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Fix liveness analysis bugs

This fixes liveness analysis with respect to inline constants and
branching. in practice, the symptom is abnormally high register
pressure.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Set int outmod for "pasted" code

These snippets of integer assembly are injected for various purposes.
Eventually, we'll want to implement these in NIR directly. Regardless,
the "default" output modifier is different between floats and ints, so
let's set the right one.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>

panfrost/midgard: Hoist some utility functions

These were static to midgard_compile.c but are more generally useful
across the compiler.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ryan Houdek <Sonicadvance1@gmail.com>