Commit graph

2298 commits

Author SHA1 Message Date
Jason Ekstrand
add373f7dd intel/nir: Use the correct indirect lowering masks in link_shaders
Previously, if we were linking a vec4 VS with a SIMD8/16 FS, we wouldn't
lower indirects on the fragment shader which is wrong.  Instead of using
a single indirect mask, take advantage of our new little helper.

Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 951a5dc4cc)
2017-11-10 19:17:21 +00:00
Jason Ekstrand
b4cc8b9b12 intel/nir: Break the linking code into a helper in brw_nir.c
Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 3e63cf893f)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
c40cf117ee intel/nir: Add a helper for getting the NoIndirect mask
Reviewed-by: Timothy Arceri <tarceri at itsqueeze.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 7364f080f9)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
2c6986c3b5 intel/fs: Rework zero-length URB write handling
Originally we tried to handle this case based on slots_valid.  However,
there are a number of ways that this can go wrong.  For one, we throw
away any trailing slots which either aren't written or are set to
VARYING_SLOT_PAD.  Second, even if PSIZ is a valid slot, we may not
actually write anything there.  Between the lot of these, it was
possible to end up in a case where we tried to do a regular URB write
but ended up with a length of 1 which is invalid.  This commit moves it
to the end and makes it based on a new boolean flag urb_written.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 7a82ad54bb)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
844b437034 intel/fs: Mark 64-bit values as being contiguous
This isn't often a problem , when we're in a compute shader, we must
push the thread local ID so we decrement the amount of available push
space by 1 and it's no longer even and 64-bit data can, in theory, span
it.  By marking those uniforms contiguous, we ensure that they never get
split in half between push and pull constants.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 25f7453c9e)
2017-11-10 19:17:20 +00:00
Jason Ekstrand
e759beb906 intel/fs: Fix integer multiplication lowering for src/dst hazards
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit d54f8ec744)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
bd5db7af2a intel/fs: Fix MOV_INDIRECT for 64-bit values on little-core
The same workaround we need for 64-bit values on little core also takes
care of the Ivy Bridge problem and does so a bit more efficiently so we
can drop that code while we're here.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit fd1bcccc2d)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
b9ddb51c19 intel/eu/reg: Add a subscript() helper
This is similar to the identically named fs_reg helper.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 10e4feed39)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
d1060ba31f intel/fs: Use a pair of 1-wide MOVs instead of SEL for any/all
For some reason, the any/all predicates don't work properly with SIMD32.
In particular, it appears that a SEL with a QtrCtrl of 2H doesn't read
the correct subset of the flag register and you end up getting garbage
in the second half.  Work around this by using a pair of 1-wide MOVs and
scattering the result.  This fixes the any/all instructions for SIMD32.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 1b8ef49f48)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
7db7159536 intel/fs: Use an explicit D type for vote any/all/eq intrinsics
The any/all intrinsics return a boolean value so D or UD is the correct
type.  Unfortunately, get_nir_dest has the annoying behavior of
returnning a float type by default.  This causes format conversion which
gives us -1.0f or 0.0f in the register.  If the consumer of the result
does an integer comparison to zero, it will give you the right boolean
value but if we do something more clever based on the 0/~0 assumption
for booleans, this will give the wrong value.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 1f41663007)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
a44f33f740 intel/fs: Don't stomp f0.1 in SIMD16 ballot
In fragment shaders f0.1 is used for discards so doing ballot after a
discard can potentially cause the discard to not happen.  However, we
don't support SIMD32 fragment shaders yet so this isn't a problem.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 6c00240bc6)
2017-11-10 16:29:27 +00:00
Jason Ekstrand
5cd286710e intel/fs: Use ANY/ALL32 predicates in SIMD32
We have ANY/ALL32 predicates and, for the most part, they work just
fine.  (See the next commit for more details.)  Also, due to the way
that flag registers are handled in hardware, instruction splitting is
able to split the CMP correctly.  Specifically, that hardware looks at
the execution group and knows to shift it's flag usage up correctly so a
2H instruction will write to f0.1 instead of f0.0.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit def013a863)
2017-11-10 16:29:26 +00:00
Jason Ekstrand
e012ec8775 intel/fs: Be more explicit about our placement of [un]zip
Before, we were careful to place the zip after the last of the split
instructions but did unzip on-demand.  This changes things so that the
unzips go before all of the split instructions and the unzip comes
explicitly after all the split instructions.  As a side-effect of this
change, we now emit the split instruction from highest SIMD group to
lowest instead of low to high.  We could have kept the old behavior, but
it shouldn't matter and this made the code easier.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 0d905597fe)
2017-11-10 16:29:26 +00:00
Jason Ekstrand
b0b9db69d8 intel/fs: Pass builders instead of blocks into emit_[un]zip
This makes it far more explicit where we're inserting the instructions
rather than the magic "before and after" stuff that the emit_[un]zip
helpers did based on block and inst.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit fcd4adb9d0)
2017-11-10 16:29:26 +00:00
Jason Ekstrand
9db1478039 intel/fs: Use a pure vertical stride for large register strides
Register strides higher than 4 are uncommon but they can happen.  For
instance, if you have a 64-bit extract_u8 operation, we turn that into
UB -> UQ MOV with a source stride of 8.  Our previous calculation would
try to generate a stride of <32;8,8>:ub which is invalid because the
maximum horizontal stride is 4.  To solve this problem, we instead use a
stride of <8;1,0>.  As noted in the comment, this does not work as a
destination but that's ok as very few things actually generate that
stride.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit e8c9e65185)
2017-11-10 16:29:26 +00:00
Jason Ekstrand
383b360348 intel/fs: Alloc pull constants off mem_ctx
It doesn't actually matter since the only user of push constants, i965,
ralloc_steals it back to NULL but it's more consistent and probably
fixes memory leaks in some error cases.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 7b4387519c)
2017-11-03 18:20:04 +00:00
Tapani Pälli
7826bc9538 i965: fix blorp stage_prog_data->param leak
Patch uses mem_ctx for allocation to ensure param array gets freed
later.

==6164== 48 bytes in 1 blocks are definitely lost in loss record 61 of 193
==6164==    at 0x4C2EB6B: malloc (vg_replace_malloc.c:299)
==6164==    by 0x12E31C6C: ralloc_size (ralloc.c:121)
==6164==    by 0x130189F1: fs_visitor::assign_constant_locations() (brw_fs.cpp:2095)
==6164==    by 0x13022D32: fs_visitor::optimize() (brw_fs.cpp:5715)
==6164==    by 0x13024D5A: fs_visitor::run_fs(bool, bool) (brw_fs.cpp:6229)
==6164==    by 0x1302549A: brw_compile_fs (brw_fs.cpp:6570)
==6164==    by 0x130C4B07: blorp_compile_fs (blorp.c:194)
==6164==    by 0x130D384B: blorp_params_get_clear_kernel (blorp_clear.c:79)
==6164==    by 0x130D3C56: blorp_fast_clear (blorp_clear.c:332)
==6164==    by 0x12EFA439: do_single_blorp_clear (brw_blorp.c:1261)
==6164==    by 0x12EFC4AF: brw_blorp_clear_color (brw_blorp.c:1326)
==6164==    by 0x12EFF72B: brw_clear (brw_clear.c:297)

Fixes: 8d90e28839 ("intel/compiler: Allocate pull_param in assign_constant_locations")
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 446c5726ec)
2017-11-03 18:19:39 +00:00
Topi Pohjolainen
f0951a6aa9 intel/compiler/gen9: Pixel shader header only workaround
Fixes intermittent GPU hangs on Broxton with an Intel internal
test case.

There are plenty of similar fragment shaders in piglit that do
not use any varyings and any uniforms. According to the
documentation special timing is needed between pipeline stages.
Apparently we just don't hit that with piglit. Even with the
failing test case one doesn't always get the hang.

Moreover, according to the error states the hang happens
significantly later than the execution of the problematic shader.
There are multiple render cycles (primitive submissions) in between.
I've also seen error states where the ACTHD points outside the
batch. Almost as if the hardware writes somewhere that gets used
later on. That would also explain why piglit doesn't suffer from
this - most tests kick off one render cycle and any corruption
is left unseen.

v2 (Ken): Instead of enabling push constants, enable one of the
          inputs (PSIZ).
v3 (Ken, Jason): Use LAYER instead making vulkan emit_3dstate_sbe()
                 happy.

Cc: "17.3 17.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
(cherry picked from commit 97e01adfd5)
2017-11-03 18:19:36 +00:00
Jason Ekstrand
5addf041ef intel/eu: Use EXECUTE_1 for JMPI
The PRM says "The execution size must be 1."  In 73137997e2, the
execution size was set to 1 when it should have been BRW_EXECUTE_1
(which maps to 0).  Later, in dc2d3a7f5c, JMPI was used for
line AA on gen6 and earlier and we started manually stomping the
exeution size to BRW_EXECUTE_1 in the generator.  This commit fixes the
original bug and makes brw_JMPI just do the right thing.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Fixes: 73137997e2
(cherry picked from commit 562b8d458c)
2017-10-27 21:33:04 +01:00
Eric Anholt
70ee0a4525 i965: Fix memmem compiler warnings.
gcc is throwing this warning in my meson build:

../src/intel/compiler/brw_eu_validate.c:50:11: warning
argument 1 null where non-null expected [-Wnonnull]
    return memmem(haystack.str, haystack.len,
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                  needle.str, needle.len) != NULL;
                                  ~~~~~~~~~~~~~~~~~~~~~~~

The first check for CONTAINS has a NULL error_msg.str and 0 len.  The
glibc implementation will exit without looking at any haystack bytes if
haystack.len < needle.len, so this was safe, but silence the warning
anyway by guarding against implementation variablility.

Fixes: 122ef3799d ("i965: Only insert error message if not already present")
Reviewed-by: Matt Turner <mattst88@gmail.com>
(cherry picked from commit e91c3540fc)
2017-10-27 21:33:04 +01:00
Jason Ekstrand
2e33d68046 anv/pipeline: Call nir_lower_system_valaues after brw_preprocess_nir
We currently have a bug where nir_lower_system_values gets called before
nir_lower_var_copies so it will miss any system value uses which come
from a copy_var intrinsic.  Moving it to after brw_preprocess_nir fixes
this problem.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 279f8fb69c)
2017-10-27 18:55:38 +01:00
Jason Ekstrand
3b699fdd19 anv/pipeline: Drop nir_lower_clip_cull_distance_arrays
We already handle it in brw_preprocess_nir

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
(cherry picked from commit afa0ddb81e)
2017-10-27 18:55:24 +01:00
Jason Ekstrand
a2123968fa intel/fs: Handle flag read/write aliasing in needs_src_copy
In order to implement the ballot intrinsic, we do a MOV from flag
register to some GRF.  If that GRF is used in a SEL, cmod propagation
helpfully changes it into a MOV from the flag register with a cmod.
This is perfectly valid but when lower_simd_width comes along, it simply
splits into two instructions which both have conditional modifiers.
This is a problem since we're reading the flag register.  This commit
makes us check whether or not flags_written() overlaps with the flag
values that we are reading via the instruction source and, if we have
any interference, will force us to emit a copy of the source.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit fa6e74e33e)
2017-10-27 18:50:27 +01:00
Lionel Landwerlin
c71d44c7f8 anv: don't assert on device init on Cannonlake
v2: Warn that support is still in alpha (Jason)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-10-21 02:37:33 +01:00
Lionel Landwerlin
0c95adaf9e anv: disable stencil pma fix on Gen > 9
This workaround isn't listed on Gen10.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-10-21 02:37:33 +01:00
Lionel Landwerlin
0c92651a3b blorp: enable R32G32B32X32 blorp ccs copies
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-10-21 02:37:33 +01:00
Matt Turner
9cd60fce9c i965/fs: Use align1 mode on ternary instructions on Gen10+
Align1 mode offers some nice features over align16, like access to more
data types and the ability to use a 16-bit immediate. This patch does
not start using any new features. It just emits ternary instructions in
align1 mode.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:17 -07:00
Matt Turner
8c16c9c677 i965: Add align1 ternary instruction emission support
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:17 -07:00
Matt Turner
f11fa5ac6c i965: Add align1 ternary instruction disassembler support
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:17 -07:00
Matt Turner
6c7fc9b73a i965: Add align1 ternary instruction-word support
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:17 -07:00
Matt Turner
3b2c868848 i965: Add align1 ternary instruction support to conversion functions
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:17 -07:00
Matt Turner
281e8b8f27 i965: Add align1 ternary instruction field encodings
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:17 -07:00
Matt Turner
5f6ee55e68 i965: Add functions to abstract access to 3src register types
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:17 -07:00
Matt Turner
e15dac319b i965: Rename brw_inst's functions that access the 3src register type
Put hw_ in the name so that it's clear these are the hardware encodings.

Similar to commit 9fb8323328 ("i965: Rename brw_inst's functions that
access the register type")

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:16 -07:00
Matt Turner
e7f3b82e03 i965: Rename brw_inst 3src functions in preparation for align1
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:16 -07:00
Matt Turner
ba50b538af i965: Print subreg in units of type-size on ternary instructions
The instruction word contains SubRegNum[4:2] so it's in units of dwords
(hence the * 4 to get it in terms of bytes). Before this patch, the
subreg would have been wrong for DF arguments.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:16 -07:00
Matt Turner
3f14150e9a i965: Add functions for brw_reg_type <-> hw 3src type
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:16 -07:00
Matt Turner
4c857d1f3b i965: Move brw_reg_type_is_floating_point to brw_reg_type.h
I'm going to call this from brw_inst.h, and I don't want to have to
include all of brw_reg.h.

Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
2017-10-20 15:00:16 -07:00
Jason Ekstrand
59fb59ad54 nir: Get rid of nir_shader::stage
It's redundant with nir_shader::info::stage.

Acked-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2017-10-20 12:49:17 -07:00
Samuel Iglesias Gonsálvez
9e515cf381 i965/vec4: remove setting default LOD in the backend
It is already done in NIR.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-10-20 08:29:53 +02:00
Samuel Iglesias Gonsálvez
c6d7d09bd0 i965/fs: remove setting default LOD in the backend
It is already done in NIR.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-10-20 08:29:53 +02:00
Kenneth Graunke
113a6a639f isl: Fix width check in isl_gen7_choose_msaa_layout.
The restriction is supposed to apply if the width *field* is >= 8192,
meaning the actual width *value* is >= 8193.

The code also incorrectly used == for some reason.

Reviewed-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-10-19 10:21:45 -07:00
Kenneth Graunke
68f69ebdcc i965: Use is_scheduling_barrier instead of schedule_node::is_barrier.
Commit a73116ecc6 tried to make add_barrier_deps()
walk to the next barrier, and stop.  To accomplish that, it added an
is_barrier flag.  Unfortunately, this only works half of the time.

The issue is that add_barrier_deps() walks both backward (to the
previous barrier), and forward (to the next barrier).  It also sets
is_barrier.  Assuming that we're processing instructions in forward
order, this means that is_barrier will be set for previous instructions,
but not future ones.  So we'll never see it, and walk further than we
need to.

dEQP-GLES31.functional.ssbo.layout.random.all_shared_buffer.23
now compiles its shaders in 3.6 seconds instead of 3.3 minutes.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Tested-by: Pallavi G <pallavi.g@intel.com>
2017-10-19 10:19:20 -07:00
Kenneth Graunke
3d112a7cd4 i965: Move fs_inst::has_side_effects()'s eot check to the parent class.
This eliminates a layer of wrapping, and makes a backend_instruction
sufficient.  The downside is that it exposes 'eot' to the vec4 backend,
which it doesn't need, but can basically happily ignore.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Tested-by: Pallavi G <pallavi.g@intel.com>
2017-10-19 10:19:20 -07:00
Vinson Lee
c5124fbc74 anv: Fix instance typos.
Fix build error.

  CC       vulkan/vulkan_libvulkan_common_la-anv_device.lo
In file included from vulkan/anv_device.c:33:0:
vulkan/anv_device.c: In function ‘anv_AllocateMemory’:
vulkan/anv_device.c:1562:37: error: ‘struct anv_device’ has no member named ‘instace’; did you mean ‘instance’?
          result = vk_errorf(device->instace, device,
                                     ^
vulkan/anv_private.h:317:17: note: in definition of macro ‘vk_errorf’
     __vk_errorf(instance, obj, REPORT_OBJECT_TYPE(obj), error,\
                 ^~~~~~~~

Fixes: 9775894f10 ("anv: Move size check from anv_bo_cache_import() to caller (v2)")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2017-10-18 09:08:08 -07:00
Eric Engestrom
2515eb63f8 meson: move expat dependency where it's needed
Suggested-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
2017-10-18 14:27:20 +01:00
Hongxu Jia
05fc62d89f automake: intel: move expat handling where it's used
Linking libvulkan_intel.so can fail, due to unresolved references to
libexpat.so.

EXPAT_CFLAGS should be moved as well.

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-10-18 14:27:20 +01:00
Tapani Pälli
6ef9bea734 anv: Install as Vulkan HAL module in Android.mk build
Now that anvil fully implements the Vulkan HAL interface, we can install
it as the vendor HAL module at /vendor/lib/hw/vulkan.${board}.so. To do
so:

  - Rename LOCAL_MODULE to vulkan.$(TARGET_BOARD_PLATFORM).
  - Use LOCAL_PROPRIETARY_MODULE to install under vendor path.

Tested by running different Sascha Williams demos on Android-IA.

Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
[chadv: Extract this hunk from Tapani's patch, and embed it as
 stand-alone patch in my arc-vulkan series].
Signed-off-by: Chad Versace <chadversary@chromium.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
2017-10-18 00:23:38 -07:00
Chad Versace
053d4c328f anv: Implement VK_ANDROID_native_buffer (v9)
This implementation is correct (afaict), but takes two shortcuts
regarding the import/export of Android sync fds.

  Shortcut 1. When Android calls vkAcquireImageANDROID to import a sync
  fd into a VkSemaphore or VkFence, the driver instead simply blocks on
  the sync fd, then puts the VkSemaphore or VkFence into the signalled
  state. Thanks to implicit sync, this produces correct behavior (with
  extra latency overhead, perhaps) despite its ugliness.

  Shortcut 2. When Android calls vkQueueSignalReleaseImageANDROID to export
  a collection of wait semaphores as a sync fd, the driver instead
  submits the semaphores to the queue, then returns sync fd -1, which
  informs the caller that no additional synchronization is needed.
  Again, thanks to implicit sync, this produces correct behavior (with
  extra batch submission overhead) despite its ugliness.

I chose to take the shortcuts instead of properly importing/exporting
the sync fds for two reasons:

  Reason 1. I've already tested this patch with dEQP and with demos
  apps. It works. I wanted to get the tested patches into the tree now,
  and polish the implementation afterwards.

  Reason 2. I want to run this on a 3.18 kernel (gasp!). In 3.18, i915
  supports neither Android's sync_fence, nor upstream's sync_file, nor
  drm_syncobj. Again, I tested these patches on Android with a 3.18
  kernel and they work.

I plan to quickly follow-up with patches that remove the shortcuts and
properly import/export the sync fds.

Non-Testing
===========
I did not test at all using the Android.mk buildsystem. I may have broke
it. Please test and review that.

Testing
=======
I tested with 64-bit ARC++ on a Skylake Chromebook and a 3.18 kernel.
The following pass (as of patchset v9):

  - a little spinning cube demo APK
  - several Sascha demos
  - dEQP-VK.info.*
  - dEQP-VK.api.wsi.android.*
      (except dEQP-VK.api.wsi.android.swapchain.*.image_usage, because
      dEQP wants to create swapchains with VK_IMAGE_USAGE_STORAGE_BIT)
  - dEQP-VK.api.smoke.*
  - dEQP-VK.api.info.instance.*
  - dEQP-VK.api.info.device.*

v2:
  - Reject VkNativeBufferANDROID if the dma-buf's size is too small for
    the VkImage.
  - Stop abusing VkNativeBufferANDROID by passing it to vkAllocateMemory
    during vkCreateImage. Instead, directly import its dma-buf during
    vkCreateImage with anv_bo_cache_import(). [for jekstrand]
  - Rebase onto Tapani's VK_EXT_debug_report changes.
  - Drop `CPPFLAGS += $(top_srcdir)/include/android`. The dir does not
    exist.

v3:
  - Delete duplicate #include "anv_private.h". [per Tapani]
  - Try to fix the Android-IA build in Android.vulkan.mk by following
    Tapani's example.

v4:
  - Unset EXEC_OBJECT_ASYNC and set EXEC_OBJECT_WRITE on the imported
    gralloc buffer, just as we do for all other winsys buffers in
    anv_wsi.c. [found by Tapani]

v5:
  - Really fix the Android-IA build by ensuring that Android.vulkan.mk
    uses Mesa' vulkan.h and not Android's.  Insert -I$(MESA_TOP)/include
    before -Iframeworks/native/vulkan/include. [for Tapani]
  - In vkAcquireImageANDROID, submit signal operations to the
    VkSemaphore and VkFence. [for zhou]

v6:
  - Drop copy-paste duplication in vkGetSwapchainGrallocUsageANDROID().
    [found by zhou]
  - Improve comments in vkGetSwapchainGrallocUsageANDROID().

v7:
  - Fix vkGetSwapchainGrallocUsageANDROID() to inspect its
    VkImageUsageFlags parameter. [for tfiga]
  - This fix regresses dEQP-VK.api.wsi.android.swapchain.*.image_usage
    because dEQP wants to create swapchains with
    VK_IMAGE_USAGE_STORAGE_BIT.

v8:
  - Drop unneeded goto in vkAcquireImageANDROID. [for tfiga]

v8.1: (minor changes)
  - Drop errant hunks added by rerere in anv_device.c.
  - Drop explicit mention of VK_ANDROID_native_buffer in
    anv_entrypoints_gen.py. [for jekstrand]

v9:
  - Isolate as much Android code as possible, moving it from anv_image.c
    to anv_android.c. Connect the files with anv_image_from_gralloc().
    Remove VkNativeBufferANDROID params from all anv_image.c
    funcs. [for krh]
  - Replace some intel_loge() with vk_errorf() in anv_android.c.
  - Use © in copyright line. [for krh]

Reviewed-by: Tapani Pälli <tapani.palli@intel.com> (v5)
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com> (v9)
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> (v9)
Cc: zhoucm1 <david1.zhou@amd.com>
Cc: Tomasz Figa <tfiga@chromium.org>
2017-10-18 00:23:38 -07:00
Chad Versace
9775894f10 anv: Move size check from anv_bo_cache_import() to caller (v2)
This change prepares for VK_ANDROID_native_buffer. When the user imports
a gralloc hande into a VkImage using VK_ANDROID_native_buffer, the user
provides no size. The driver must infer the size from the internals of
the gralloc buffer.

The patch is essentially a refactor patch, but it does change behavior
in some edge cases, described below. In what follows, the "nominal size"
of the bo refers to anv_bo::size, which may not match the bo's "actual
size" according to the kernel.

Post-patch, the nominal size of the bo returned from
anv_bo_cache_import() is always the size of imported dma-buf according
to lseek(). Pre-patch, the bo's nominal size was difficult to predict.
If the imported dma-buf's gem handle was not resident in the cache, then
the bo's nominal size was align(VkMemoryAllocateInfo::allocationSize,
4096).  If it *was* resident, then the bo's nominal size was whatever
the cache returned. As a consequence, the first cache insert decided the
bo's nominal size, which could be significantly smaller compared to the
dma-buf's actual size, as the nominal size was determined by
VkMemoryAllocationInfo::allocationSize and not lseek().

I believe this patch cleans up that messy behavior. For an imported or
exported VkDeviceMemory, anv_bo::size should now be the true size of the
bo, if I correctly understand the problem (which I possibly don't).

v2:
  - Preserve behavior of aligning size to 4096 before checking. [for
    jekstrand]
  - Check size with < instead of <=, to match behavior of commit c0a4f56
    "anv: bo_cache: allow importing a BO larger than needed". [for
    chadv]
2017-10-17 23:46:06 -07:00