mesa.git
7 years agomesa: remove unused _mesa_unmarshal_BindBufferBase()
Samuel Pitoiset [Tue, 11 Apr 2017 12:01:51 +0000 (14:01 +0200)]
mesa: remove unused _mesa_unmarshal_BindBufferBase()

Fixes the following Clang warning.

main/marshal.c:209:1: warning: unused function '_mesa_unmarshal_BindBufferBase' [-Wunused-function]
_mesa_unmarshal_BindBufferBase(struct gl_context *ctx, const struct marshal_cmd_BindBufferBase *cmd)
^
1 warning generated.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
7 years agovirgl: add missing PIPE_CAP_DOUBLES
Samuel Pitoiset [Tue, 11 Apr 2017 11:54:44 +0000 (13:54 +0200)]
virgl: add missing PIPE_CAP_DOUBLES

Fixes the following Clang warning.

virgl_screen.c:60:12: warning: enumeration value 'PIPE_CAP_DOUBLES' not handled in switch [-Wswitch]
   switch (param) {
           ^
1 warning generated.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
7 years agoglsl: simplify apply_image_qualifier_to_variable()
Samuel Pitoiset [Wed, 12 Apr 2017 12:36:32 +0000 (14:36 +0200)]
glsl: simplify apply_image_qualifier_to_variable()

This removes one level of indentation and will improve readability
for bindless images.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
7 years agoglsl: add validate_fragment_flat_interpolation_input()
Samuel Pitoiset [Wed, 12 Apr 2017 10:47:47 +0000 (12:47 +0200)]
glsl: add validate_fragment_flat_interpolation_input()

Requested by Timothy Arceri.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
7 years agonvc0: Enable ARB_shader_ballot on Kepler+
Boyan Ding [Mon, 10 Apr 2017 14:56:05 +0000 (22:56 +0800)]
nvc0: Enable ARB_shader_ballot on Kepler+

readInvocationARB() and readFirstInvocationARB() need SHFL.IDX
instruction which is introduced in Kepler.

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agonvc0/ir: Implement TGSI_OPCODE_BALLOT and TGSI_OPCODE_READ_*
Boyan Ding [Mon, 10 Apr 2017 14:56:04 +0000 (22:56 +0800)]
nvc0/ir: Implement TGSI_OPCODE_BALLOT and TGSI_OPCODE_READ_*

v2: Check if each channel is masked in TGSI_OPCODE_BALLOT (Ilia Mirkin)

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agonvc0/ir: Implement TGSI_SEMANTIC_SUBGROUP_*
Boyan Ding [Mon, 10 Apr 2017 14:56:03 +0000 (22:56 +0800)]
nvc0/ir: Implement TGSI_SEMANTIC_SUBGROUP_*

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agonvc0/ir: Add SV_LANEMASK_* system values.
Boyan Ding [Mon, 10 Apr 2017 14:56:02 +0000 (22:56 +0800)]
nvc0/ir: Add SV_LANEMASK_* system values.

v2: Add name strings in nv50_ir_print.cpp (Ilia Mirkin)

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agonvc0/ir: Allow 0/1 immediate value as source of OP_VOTE
Boyan Ding [Mon, 10 Apr 2017 14:56:01 +0000 (22:56 +0800)]
nvc0/ir: Allow 0/1 immediate value as source of OP_VOTE

Implementation of readFirstInvocationARB() on nvidia hardware needs a
ballotARB(true) used to decide the first active thread. This expressed
in gm107 asm as (supposing output is $r0):
vote any $r0 0x1 0x1

To model the always true input, which corresponds to the second 0x1
above, we make OP_VOTE accept immediate value 0/1 and emit "0x1" and
"not 0x1" in the src field respectively.

v2: Make sure that asImm() is not NULL (Samuel Pitoiset)

v3: (Ilia Mirkin)
Make the handling more symmetric with predicate version in gm107
Use i->getSrc(s)

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agogk110/ir: Emit OP_SHFL
Boyan Ding [Mon, 10 Apr 2017 14:56:00 +0000 (22:56 +0800)]
gk110/ir: Emit OP_SHFL

v2: Make sure that asImm() is not NULL (Samuel Pitoiset)

v3: Check the range of immediate in OP_SHFL (Ilia Mirkin)

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agonvc0/ir: Emit OP_SHFL
Boyan Ding [Mon, 10 Apr 2017 14:55:59 +0000 (22:55 +0800)]
nvc0/ir: Emit OP_SHFL

v2: (Samuel Pitoiset)
Add an assertion to check if the target is Kepler
Make sure that asImm() is not NULL

v3: (Ilia Mirkin)
Check the range of immediate value of OP_SHFL
Use the new setPDSTL API

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agonvc0/ir: Properly handle a "split form" of predicate destination
Boyan Ding [Mon, 10 Apr 2017 14:55:58 +0000 (22:55 +0800)]
nvc0/ir: Properly handle a "split form" of predicate destination

GF100's ISA encoding has a weird form of predicate destination where its
3 bits are split across whole the instruction. Use a dedicated setPDSTL
function instead of original defId which is incorrect in this case.

v2: (Ilia Mirkin)
Change API of setPDSTL() to handle cases of no output
Fix setting of the highest bit in setPDSTL()

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agogm107/ir: Emit third src 'bound' and optional predicate output of SHFL
Boyan Ding [Mon, 10 Apr 2017 14:55:57 +0000 (22:55 +0800)]
gm107/ir: Emit third src 'bound' and optional predicate output of SHFL

v2: Emit the original hard-coded 0x1c03 when OP_SHFL is used in gm107's
    lowering (Samuel Pitoiset)

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agoclover: Fix build against clang SVN >= r299965
Michel Dänzer [Wed, 12 Apr 2017 08:17:34 +0000 (17:17 +0900)]
clover: Fix build against clang SVN >= r299965

clang::LangAS::Offset is gone, the behaviour is as if it was 0.

v2: Introduce and use clover::llvm::compat::lang_as_offset (Francisco
    Jerez)

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
7 years agost/mesa: add some _mesa_is_winsys_fbo() assertions
Brian Paul [Tue, 11 Apr 2017 03:11:55 +0000 (21:11 -0600)]
st/mesa: add some _mesa_is_winsys_fbo() assertions

A few functions related to FBOs/renderbuffers should only be used with
window-system buffers, not user-created FBOs.  Assert for that.
Add additional comments.  No piglit regressions.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
7 years agost/mesa: minor optimization in st_DrawBuffers()
Brian Paul [Tue, 11 Apr 2017 03:09:41 +0000 (21:09 -0600)]
st/mesa: minor optimization in st_DrawBuffers()

We only do on-demand renderbuffer allocation for window-system FBOs,
not user-created FBOs.  So put the loop inside a conditional.

Plus, add some comments.  No piglit regressions.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
7 years agomesa/st: only update samplers for stages that have changed
Timothy Arceri [Tue, 11 Apr 2017 01:05:22 +0000 (11:05 +1000)]
mesa/st: only update samplers for stages that have changed

Might help reduce cpu for some apps that use sso.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
7 years agost/mesa: Fix missing-braces warning.
Vinson Lee [Wed, 22 Mar 2017 23:21:41 +0000 (16:21 -0700)]
st/mesa: Fix missing-braces warning.

  CXX      state_tracker/st_glsl_to_nir.lo
state_tracker/st_glsl_to_nir.cpp:250:57: warning: suggest braces around initialization of subobject [-Wmissing-braces]
      nir_lower_wpos_ytransform_options wpos_options = {0};
                                                        ^
                                                        {}

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
7 years agoradv: Disable primitive restart for non-indexed draws
Alex Smith [Wed, 12 Apr 2017 08:20:42 +0000 (09:20 +0100)]
radv: Disable primitive restart for non-indexed draws

According to the Vulkan spec, VkPipelineInputAssemblyStateCreateInfo's
primitiveRestartEnable flag should only apply to indexed draws, however
it was being enabled regardless of the type of draw. This could cause
problems for non-indexed draws with >=65535 vertices if the previous
indexed draw used 16-bit indices.

Fixes corruption of the credits text in Mad Max.

v2: Reset primitive restart state after executing a secondary command
    buffer.

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
7 years agoanv: Only define wsi_cbs when VK_USE_PLATFORM_WAYLAND_KHR defined
Matt Turner [Wed, 12 Apr 2017 18:00:39 +0000 (11:00 -0700)]
anv: Only define wsi_cbs when VK_USE_PLATFORM_WAYLAND_KHR defined

7 years agoRevert "r600g: get rid of dummy pixel shader"
Marek Olšák [Wed, 12 Apr 2017 15:45:30 +0000 (17:45 +0200)]
Revert "r600g: get rid of dummy pixel shader"

This reverts commit 61e47d92c5196bf0240e322bb1b9d305836559e3.

It causes a hang on RS780.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100663

7 years agomesa: fix memory leak in arb_fragment_program
Bartosz Tomczyk [Sun, 9 Apr 2017 16:37:13 +0000 (18:37 +0200)]
mesa: fix memory leak in arb_fragment_program

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
7 years agoradv: Hash the immutable samplers.
Bas Nieuwenhuizen [Tue, 11 Apr 2017 22:40:36 +0000 (00:40 +0200)]
radv: Hash the immutable samplers.

Since the shader code can include them.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoradv: Use an offset instead of pointers for immutable samplers.
Bas Nieuwenhuizen [Tue, 11 Apr 2017 22:37:06 +0000 (00:37 +0200)]
radv: Use an offset instead of pointers for immutable samplers.

Makes more sense when we hash the layout for the pipeline cache.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoradv: Stop shadowing the result in radv_GetQueryPoolResults.
Bas Nieuwenhuizen [Tue, 11 Apr 2017 22:45:51 +0000 (00:45 +0200)]
radv: Stop shadowing the result in radv_GetQueryPoolResults.

The outer result was referred to, which meant bugs.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoradv: Return VK_NOT_READY if the query results are not available.
Bas Nieuwenhuizen [Tue, 11 Apr 2017 21:56:42 +0000 (23:56 +0200)]
radv: Return VK_NOT_READY if the query results are not available.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Fixes: 8475a14302e ("radv: Implement pipeline statistics queries.")
Reviewed-by: Fredrik Höglund <fredrik@kde.org>
7 years agoradv: Set query availability bit even if we don't wait.
Bas Nieuwenhuizen [Tue, 11 Apr 2017 21:54:58 +0000 (23:54 +0200)]
radv: Set query availability bit even if we don't wait.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Fixes: 8475a14302e ("radv: Implement pipeline statistics queries.")
Reviewed-by: Fredrik Höglund <fredrik@kde.org>
7 years agomesa: avoid NULL ptr in prog parameter name
Gregory Hainaut [Tue, 11 Apr 2017 20:29:17 +0000 (22:29 +0200)]
mesa: avoid NULL ptr in prog parameter name

Context: _mesa_add_parameter is sometimes[0] called with a
NULL name as a mean of an unnamed parameter.

Allowing NULL pointer as a name means that it must be NULL checked
each access. So far it isn't always[1] true.

Parameter name is only used for debug purpose (printf) and
to lookup the index/location of the program by the application.

Conclusion, there is no valid reason to use a NULL pointer instead of
an empty string. So it was decided to use an empty string which avoid all
issues related to NULL pointer

[0]: texture gather offsets glsl opcode and st_init_atifs_prog
[1]: at least shader cache, st_nir_lookup_parameter_index and some printfs

Issue found by piglit 'texturegatheroffsets' tests on Nouveau

v4: new patch based on Nicolai/Timothy/ilia discussion
Signed-off-by: Gregory Hainaut <gregory.hainaut@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
7 years agoi965/drm: Use bools for a few flags.
Kenneth Graunke [Tue, 11 Apr 2017 07:04:29 +0000 (00:04 -0700)]
i965/drm: Use bools for a few flags.

These one bit values are booleans.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
7 years agoi965/drm: Make brw_bo_alloc_tiled flags parameter 32-bit.
Kenneth Graunke [Tue, 11 Apr 2017 07:02:35 +0000 (00:02 -0700)]
i965/drm: Make brw_bo_alloc_tiled flags parameter 32-bit.

unsigned long is a terrible type for a bitfield - if you need fewer
than 32 bits, it wastes 4 bytes.  If you need more, things break on
32-bit builds.  Just use unsigned.

Even that's a bit ridiculous as we only have one flag today.
Still, it's at least somewhat better.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
7 years agoi965/drm: Make BO size a uint64_t rather than unsigned long.
Kenneth Graunke [Tue, 11 Apr 2017 06:10:04 +0000 (23:10 -0700)]
i965/drm: Make BO size a uint64_t rather than unsigned long.

The drm_i915_gem_create ioctl structure uses a __u64 for the size,
so we should probably use uint64_t to match.  In theory, we could
probably have a BO larger than 4GB, using a 48-bit PPGTT - it just
wouldn't be mappable in the CPU's 32-bit address space.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
7 years agoi965/drm: Make alignment parameter a uint64_t.
Kenneth Graunke [Tue, 11 Apr 2017 06:55:21 +0000 (23:55 -0700)]
i965/drm: Make alignment parameter a uint64_t.

Theoretically, with a 48-bit address space, we could have buffers
with an alignment of >= 4GB.  It's a bit silly, but the exec_object
structs (drm_i915_gem_exec_object2) use a __u64 for this, so we may
as well use the same type as the kernel API.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
7 years agoi965/drm: Make stride/pitch a uint32_t.
Kenneth Graunke [Tue, 11 Apr 2017 06:08:23 +0000 (23:08 -0700)]
i965/drm: Make stride/pitch a uint32_t.

struct drm_i915_gem_set_tiling's stride field is a __u32.
intel_mipmap_tree::stride is a uint32_t.  Using unsigned long just
doesn't make sense.  Switching also lets us drop many pointless
locals that only existed to deal with the type mismatch.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
7 years agoi965/drm: Fix types for pwrite/pread fields.
Kenneth Graunke [Tue, 11 Apr 2017 06:00:24 +0000 (23:00 -0700)]
i965/drm: Fix types for pwrite/pread fields.

The ioctl structs contain __u64 offset and size fields, so make them
uint64_t rather than unsigned long.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
7 years agoi965/drm: Make brw_bo_alloc_tiled take tiling by value, not pointer.
Kenneth Graunke [Tue, 11 Apr 2017 06:31:20 +0000 (23:31 -0700)]
i965/drm: Make brw_bo_alloc_tiled take tiling by value, not pointer.

For some reason we passed tiling by pointer, through several layers,
even though the functions only read the initial value, and never
actually change it.  We even had a do-while loop that executed until
the tiling mode matched - except it always did, so it only ran once.
We then had bogus error handling in case it changed the tiling mode
to something nonsensical...which it never did.

Drop all this nonsense.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
7 years agomesa/st: remove _mesa_get_fallback_texture() calls
Timothy Arceri [Tue, 11 Apr 2017 04:30:15 +0000 (14:30 +1000)]
mesa/st: remove _mesa_get_fallback_texture() calls

These calls look like leftover from fallback texture support first
being added to the st in 8f6d9e12be0be and then later being added
to core mesa in 00e203fe17cbf21.

The piglit test fp-incomplete-tex continues to work with this
change.

Reviewed-by: Brian Paul <brianp@vmware.com>
7 years agomesa: use pre_hashed version of search for the mesa hash table
Timothy Arceri [Mon, 10 Apr 2017 12:21:37 +0000 (22:21 +1000)]
mesa: use pre_hashed version of search for the mesa hash table

The key is just an unsigned int so there is never any real hashing
done.

Reviewed-by: Eric Anholt <eric@anholt.net>
7 years agoswr: [rasterizer core] Disable 8x2 tile backend
Tim Rowley [Fri, 7 Apr 2017 21:51:42 +0000 (16:51 -0500)]
swr: [rasterizer core] Disable 8x2 tile backend

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer common] Add _simd_testz_si alias
Tim Rowley [Fri, 7 Apr 2017 21:31:36 +0000 (16:31 -0500)]
swr: [rasterizer common] Add _simd_testz_si alias

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer archrast] Fix archrast for MSVC 2017 compiler
Tim Rowley [Fri, 7 Apr 2017 16:41:25 +0000 (11:41 -0500)]
swr: [rasterizer archrast] Fix archrast for MSVC 2017 compiler

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer jitter] Remove unused function
Tim Rowley [Fri, 7 Apr 2017 15:58:38 +0000 (10:58 -0500)]
swr: [rasterizer jitter] Remove unused function

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer jitter] Remove HAVE_LLVM tests supporting llvm < 3.8
Tim Rowley [Fri, 7 Apr 2017 12:57:11 +0000 (07:57 -0500)]
swr: [rasterizer jitter] Remove HAVE_LLVM tests supporting llvm < 3.8

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer common/core] Fix 32-bit windows build
Tim Rowley [Fri, 7 Apr 2017 09:37:25 +0000 (04:37 -0500)]
swr: [rasterizer common/core] Fix 32-bit windows build

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer core] Fix unused variable warnings
Tim Rowley [Fri, 7 Apr 2017 03:11:45 +0000 (22:11 -0500)]
swr: [rasterizer core] Fix unused variable warnings

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer core] Code formating change
Tim Rowley [Thu, 6 Apr 2017 23:21:54 +0000 (18:21 -0500)]
swr: [rasterizer core] Code formating change

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer core] SIMD16 Frontend WIP - PA
Tim Rowley [Thu, 6 Apr 2017 21:37:03 +0000 (16:37 -0500)]
swr: [rasterizer core] SIMD16 Frontend WIP - PA

Fix PA NextPrim for SIMD8 on SIMD16.

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer core] SIMD16 Frontend WIP - Clipper
Tim Rowley [Thu, 6 Apr 2017 20:22:55 +0000 (15:22 -0500)]
swr: [rasterizer core] SIMD16 Frontend WIP - Clipper

Implement widened clipper for SIMD16.

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer core] Multisample sample position setup change
Tim Rowley [Sat, 1 Apr 2017 01:33:43 +0000 (20:33 -0500)]
swr: [rasterizer core] Multisample sample position setup change

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoswr: [rasterizer core] Reduce templates to speed compile
Tim Rowley [Fri, 31 Mar 2017 21:50:40 +0000 (16:50 -0500)]
swr: [rasterizer core] Reduce templates to speed compile

Quick patch to remove some unused template params to cut down
rasterizer compile time.

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
7 years agoi965/fs: Take into account lower frequency of conditional blocks in spilling cost...
Francisco Jerez [Mon, 10 Apr 2017 00:28:58 +0000 (17:28 -0700)]
i965/fs: Take into account lower frequency of conditional blocks in spilling cost heuristic.

The individual branches of an if/else/endif construct will be executed
some unknown number of times between 0 and 1 relative to the parent
block.  Use some factor in between as weight while approximating the
cost of spill/fill instructions within a conditional if-else branch.
This favors spilling registers used within conditional branches which
are likely to be executed less frequently than registers used at the
top level.

Improves the framerate of the SynMark2 OglCSDof benchmark by ~1.9x on
my SKL GT4e.  Should have a comparable effect on other platforms.  No
significant regressions.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
7 years agoswr: return true for PIPE_CAP_DOUBLES
Tim Rowley [Tue, 11 Apr 2017 16:50:23 +0000 (11:50 -0500)]
swr: return true for PIPE_CAP_DOUBLES

Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
7 years agoi965: Set kernel features before computing max GL version.
Kenneth Graunke [Tue, 11 Apr 2017 15:33:20 +0000 (08:33 -0700)]
i965: Set kernel features before computing max GL version.

We check these bitfields when computing the Haswell max GL version.
We need to set them ahead of time, or they won't exist, and all our
checks will fail.  That sets the max core profile GL version to 4.2.

This introduces the bizarre situation where asking for a GL context
with version 4.3+ fails, but asking for a GL core profile context
with version <= 4.2 actually promotes you a 4.5 context.

GLX_MESA_query_renderer also reported the bogus 4.2 value.
Now it shows 4.5.

Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Reported-and-tested-by: Rafael Ristovski <rafael.ristovski@gmail.com>
7 years agoanv: remove needless VALGRIND_MAKE_MEM_DEFINED
Juan A. Suarez Romero [Tue, 11 Apr 2017 11:15:31 +0000 (13:15 +0200)]
anv: remove needless VALGRIND_MAKE_MEM_DEFINED

This is already invoked in the following VG_NOACCESS_READ() call.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoetnaviv: enable TS, but disable autodisable
Lucas Stach [Mon, 21 Nov 2016 11:32:15 +0000 (12:32 +0100)]
etnaviv: enable TS, but disable autodisable

Autodisable seems to cause missed rendering in some cases, but
otherwise TS seems to work properly.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
7 years agoetnaviv: enable TS also on sampler resources
Lucas Stach [Mon, 21 Nov 2016 11:29:04 +0000 (12:29 +0100)]
etnaviv: enable TS also on sampler resources

Fixes a performance issue with imported winsys buffers as those are
marked with binding sampler view.

This might require a TS flush on single pipe chips that directly
sample from the rendered buffer, but otherwise seems to work fine.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
7 years agoetnaviv: align TS surface size to number of pixel pipes
Lucas Stach [Mon, 21 Nov 2016 11:27:47 +0000 (12:27 +0100)]
etnaviv: align TS surface size to number of pixel pipes

The TS surface gets cleared by a tiled RS fill. If the chip has
more than 1 pixel pipe the size of the TS surface needs to be
aligned so that each pipe address matches a tile start, otherwise
the RS will hang.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
7 years agoetnaviv: avoid using invalid TS
Lucas Stach [Mon, 21 Nov 2016 11:25:29 +0000 (12:25 +0100)]
etnaviv: avoid using invalid TS

The TS is only valid after it has been initialized by a fast
clear, so it should not be taken into account when blitting
resources that haven't been cleared. Also the blit itself
invalidates the destination TS, as it's not updated and will
retain data from the previous rendering after the blit.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
7 years agoglsl: use the BA1 macro for textureQueryLevels()
Samuel Pitoiset [Mon, 10 Apr 2017 17:23:17 +0000 (19:23 +0200)]
glsl: use the BA1 macro for textureQueryLevels()

For both consistency and new bindless sampler types.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
7 years agoglsl: use the BA1 macro for textureSamples()
Samuel Pitoiset [Mon, 10 Apr 2017 17:23:16 +0000 (19:23 +0200)]
glsl: use the BA1 macro for textureSamples()

For both consistency and new bindless sampler types.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
7 years agoglsl: use the BA1 macro for textureCubeArrayShadow()
Samuel Pitoiset [Mon, 10 Apr 2017 17:23:15 +0000 (19:23 +0200)]
glsl: use the BA1 macro for textureCubeArrayShadow()

For both consistency and new bindless sampler types.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
7 years agoradv: Implement pipeline statistics queries.
Bas Nieuwenhuizen [Mon, 10 Apr 2017 20:20:19 +0000 (22:20 +0200)]
radv: Implement pipeline statistics queries.

The devil is in the shader again, otherwise this is
fairly straightforward.

The CTS contains no pipeline statistics copy to buffer
testcases, so I did a basic smoketest.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoradv: Let count be dynamic in radv_break_on_count.
Bas Nieuwenhuizen [Mon, 10 Apr 2017 21:54:51 +0000 (23:54 +0200)]
radv: Let count be dynamic in radv_break_on_count.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoradv: Rename query pipeline/set layout.
Bas Nieuwenhuizen [Mon, 10 Apr 2017 19:49:48 +0000 (21:49 +0200)]
radv: Rename query pipeline/set layout.

For using them with both occlusion and pipeline statistics queries.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoradv: Use VK_WHOLE_SIZE for the query buffer bindings.
Bas Nieuwenhuizen [Mon, 10 Apr 2017 19:46:07 +0000 (21:46 +0200)]
radv: Use VK_WHOLE_SIZE for the query buffer bindings.

The buffer sizes are specified just a few lines earlier, so don't
repeat ourselves.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoradv: Use a shader for occlusion CmdCopyQueryPoolResults.
Bas Nieuwenhuizen [Sun, 9 Apr 2017 20:35:32 +0000 (22:35 +0200)]
radv: Use a shader for occlusion CmdCopyQueryPoolResults.

Use the new occlusion query copy shader.

We don't use the shader for the waiting as a polling loop ineracts badly
with having caching enabled. I noticed on my GPU (Tonga) that the values
are written out in order, so I just use a WAIT_REG_MEM on the last value.

If it turns out other chips don't do that we may need to look a bit more
into this. Having 8 WAIT_REG_MEM packets per query doesn't sound ideal.

This also restricts the availability word in the pool to timestamp queries
only, as occlusion queries don't use it, and pipeline statistic queries
likely won't either.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoradv: Add occlusion query shader.
Bas Nieuwenhuizen [Sun, 26 Feb 2017 17:21:01 +0000 (18:21 +0100)]
radv: Add occlusion query shader.

Adds a shader for writing occlusion query results to a buffer, as the
CP packet isn't support on SI or secondary buffers, and doesn't handle
the availability bit (or partial results) nor truncation to 32-bit.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
7 years agoi965: Fix wonky indentation left by brw_bo_alloc_tiled rename.
Kenneth Graunke [Tue, 11 Apr 2017 06:23:13 +0000 (23:23 -0700)]
i965: Fix wonky indentation left by brw_bo_alloc_tiled rename.

7 years agonouveau: when mapping a persistent buffer, synchronize on former xfers
Ilia Mirkin [Sat, 8 Apr 2017 22:31:35 +0000 (18:31 -0400)]
nouveau: when mapping a persistent buffer, synchronize on former xfers

If the buffer is being used, we should wait for those uses to be
complete before returning the map.

Fixes: GL45-CTS.direct_state_access.buffers_functional
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org
7 years agonvc0: increase texture buffer object alignment to 256 for pre-GM107
Ilia Mirkin [Sat, 8 Apr 2017 18:56:16 +0000 (14:56 -0400)]
nvc0: increase texture buffer object alignment to 256 for pre-GM107

We currently don't pass the low byte of the address via the surface
info, so in order to work with images, these have to implicitly be
aligned to 256. The proprietary driver also doesn't go out of its way to
provide lower alignment.

Fixes GL45-CTS.texture_buffer.texture_buffer_texture_buffer_range

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
7 years agomesa: fix typo and add assert() to _mesa_attach_renderbuffer_without_ref()
Timothy Arceri [Mon, 10 Apr 2017 23:57:45 +0000 (09:57 +1000)]
mesa: fix typo and add assert() to _mesa_attach_renderbuffer_without_ref()

This function should only be used with a "freshly created" renderbuffer
so assert RefCount is 1.

7 years agoi965/drm: Add stall warnings when mapping or waiting on BOs.
Kenneth Graunke [Mon, 10 Apr 2017 06:14:56 +0000 (23:14 -0700)]
i965/drm: Add stall warnings when mapping or waiting on BOs.

This restores the performance warnings removed in:

    i965: Drop brw_bo_map[_gtt] wrappers which issue perf warnings.

but adds them for nearly all BO mapping, and also for wait_rendering.

Because we add this to the core bufmgr, we automatically get stall
warnings in all callers, unlike before where only a few callsites used
the wrappers that gave stall warnings.

We also do it a bit differently: we simply measure how long set_domain
takes (the part that stalls), and complain if it's more than 0.01 ms.
We don't bother calling brw_bo_busy(), and we don't measure the mmap
time (which doesn't stall).  This should be more accurate.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
7 years agoi965/drm: Make a set_domain() helper function.
Kenneth Graunke [Mon, 10 Apr 2017 05:58:57 +0000 (22:58 -0700)]
i965/drm: Make a set_domain() helper function.

Less boilerplate.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
7 years agoi965/batch: Ensure we use a consistent offset in relocs
Daniel Vetter [Thu, 6 Apr 2017 07:13:47 +0000 (09:13 +0200)]
i965/batch: Ensure we use a consistent offset in relocs

In theory gcc is free to re-load them, and if a concurrent
execbuf races and updates bo->offset64 then we have a problem:
execbuffer api requires that the ->presumed_offset and the one
we used for the reloc matches. It does not require that the value
is sensible, which means no locks needed, just a consistent load.

Ken said his next series will nuke this, so just hand-roll the
kernel's READ_ONCE idea inline.

FIXME: Most callers of brw_emit_reloc recompute the relocation
themselves, which means this doesn't really fix the race. But the long
term plan is to move to per-context relocation handling, which will
fix this all properly. So leave this for now as just a reminder.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
7 years agoi965/bufmgr: Garbage-collect vma cache/pruning
Daniel Vetter [Thu, 6 Apr 2017 06:48:08 +0000 (08:48 +0200)]
i965/bufmgr: Garbage-collect vma cache/pruning

This was done because the kernel has 1 global address space, shared
with all render clients, for gtt mmap offsets, and that address space
was only 32bit on 32bit kernels.

This was fixed  in

commit 440fd5283a87345cdd4237bdf45fb01130ea0056
Author: Thierry Reding <treding@nvidia.com>
Date:   Fri Jan 23 09:05:06 2015 +0100

    drm/mm: Support 4 GiB and larger ranges

which shipped in 4.0. Of course you still want to limit the bo cache
to a reasonable size on 32bit apps to avoid ENOMEM, but that's better
solved by tuning the cache a bit. On 64bit, this was never an issue.

On top, mesa never set this, so it's all dead code. Collect an trash it.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
7 years agoi965/bufmgr: Remove some reuse functions
Daniel Vetter [Thu, 6 Apr 2017 06:28:51 +0000 (08:28 +0200)]
i965/bufmgr: Remove some reuse functions

is_reusable was needed by uxa because it couldn't keep track of its
scanout buffers and used this as a proxy. Disabling reuse is a silly
idea, we set this once at start. Remove both.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
7 years agoi965/bufmgr: remove start_gtt_access
Daniel Vetter [Thu, 6 Apr 2017 06:27:47 +0000 (08:27 +0200)]
i965/bufmgr: remove start_gtt_access

Iirc this was used by uxa for persistent mmpas of the frontbuffer. For
mesa all the set_domain stuff needed before a synchronized mmap is handled
within the bufmgr, so no reason ever to call this.

Inline the implementation into its only internal user.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
7 years agoi965/bufmgr: Delete set_tiling
Daniel Vetter [Thu, 6 Apr 2017 06:25:50 +0000 (08:25 +0200)]
i965/bufmgr: Delete set_tiling

Entirely unused, and really shouldn't be used. The alloc functions already
take care of this. And even in a future where we're not going to
h/v-align tiled buffers in the bufmgr, but only in isl, I think we
still want to adjust the tiling mode in the bufmgr, since that ties in
closely to mmaps and stuff like that.

get_tiling is still needed for the import paths (until we have modifiers
everywhere).

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
7 years agoi965/bufmgr: Delete alloc_for_render
Daniel Vetter [Thu, 6 Apr 2017 06:23:28 +0000 (08:23 +0200)]
i965/bufmgr: Delete alloc_for_render

Entirely unused, mesa instead used the BO_ALLOC_FOR_RENDER flag.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
7 years agoi965/drm: Use list_for_each_entry_safe in a couple of cases.
Kenneth Graunke [Wed, 5 Apr 2017 21:10:36 +0000 (14:10 -0700)]
i965/drm: Use list_for_each_entry_safe in a couple of cases.

Suggested by Chris Wilson.  A tiny bit simpler.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
7 years agoi965/drm: Rename intel_bufmgr_gem.c to brw_bufmgr.c.
Kenneth Graunke [Tue, 4 Apr 2017 04:01:51 +0000 (21:01 -0700)]
i965/drm: Rename intel_bufmgr_gem.c to brw_bufmgr.c.

Matches the class name and the header file name.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Reindent intel_bufmgr_gem.c and brw_bufmgr.h.
Kenneth Graunke [Tue, 4 Apr 2017 03:54:16 +0000 (20:54 -0700)]
i965/drm: Reindent intel_bufmgr_gem.c and brw_bufmgr.h.

indent -i3 -nut -br -brs -npcs -ce --no-tabs -Tuint32_t -Tuint64_t
plus some manual fixes because those aren't quite the right settings.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Rename drm_bacon_bo to brw_bo.
Kenneth Graunke [Tue, 4 Apr 2017 03:13:08 +0000 (20:13 -0700)]
i965/drm: Rename drm_bacon_bo to brw_bo.

The bacon is all gone.

This renames both the class and the related functions.  We're about to
run indent on the bufmgr code, so no need to worry about fixing bad
indentation.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965: Drop brw_bo_map[_gtt] wrappers which issue perf warnings.
Kenneth Graunke [Tue, 4 Apr 2017 03:22:59 +0000 (20:22 -0700)]
i965: Drop brw_bo_map[_gtt] wrappers which issue perf warnings.

The stupid reason for eliminating these functions is that I'm about
to rename drm_bacon_bo_map() to brw_bo_map(), which makes the real
function have the short name, rather than the wrapper.

I'm also planning on reworking our mapping code soon, so we use WC
mappings and proper unsynchronized mappings on non-LLC platforms.
It will be easier to do that without thinking about the stall
warnings and wrappers.

My eventual hope is to put the performance warnings in the BO map
function itself, so all callers gain the warning.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Rename drm_bacon_reg_read() to brw_reg_read().
Kenneth Graunke [Tue, 4 Apr 2017 03:14:11 +0000 (20:14 -0700)]
i965/drm: Rename drm_bacon_reg_read() to brw_reg_read().

Less bacon.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Rename drm_bacon_bufmgr to struct brw_bufmgr.
Kenneth Graunke [Tue, 4 Apr 2017 01:10:23 +0000 (18:10 -0700)]
i965/drm: Rename drm_bacon_bufmgr to struct brw_bufmgr.

Also stop using typedefs, per Mesa coding style.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965: Just use a uint32_t context handle rather than a malloc'd wrapper.
Kenneth Graunke [Tue, 4 Apr 2017 00:32:19 +0000 (17:32 -0700)]
i965: Just use a uint32_t context handle rather than a malloc'd wrapper.

drm_bacon_context is a malloc'd struct containing a uint32_t context ID
and a pointer back to the bufmgr.  The bufmgr pointer is pretty useless,
as everybody already has brw->bufmgr.  At that point...we may as well
just use the ctx_id handle directly.  A number of places already had to
call drm_bacon_gem_context_get_id() to extract the ID anyway.  Now they
just have it.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Fold drm_bacon_gem_reset_stats into the callers.
Kenneth Graunke [Tue, 4 Apr 2017 00:44:57 +0000 (17:44 -0700)]
i965/drm: Fold drm_bacon_gem_reset_stats into the callers.

We're going to get rid of drm_bacon_context shortly, so we'd have to
change the interface slightly.  It's basically just an ioctl wrapper
that isn't terribly bufmgr-related, so We may as well just combine it
with the code in brw_reset.c that actually uses it.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Rename drm_bacon_gem_bo_bucket to bo_cache_bucket.
Kenneth Graunke [Tue, 4 Apr 2017 00:17:36 +0000 (17:17 -0700)]
i965/drm: Rename drm_bacon_gem_bo_bucket to bo_cache_bucket.

No need for a prefix as this struct is local to the .c file.

Less bacon.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Drop drm_bacon_* from static functions.
Kenneth Graunke [Mon, 3 Apr 2017 23:57:44 +0000 (16:57 -0700)]
i965/drm: Drop drm_bacon_* from static functions.

Mesa style is to not use lengthy prefixes for static functions.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Drop drm_bacon_gem_bo_madvise_internal().
Kenneth Graunke [Mon, 3 Apr 2017 23:55:06 +0000 (16:55 -0700)]
i965/drm: Drop drm_bacon_gem_bo_madvise_internal().

The only difference is that it takes an explicit bufmgr rather than
using bo->bufmgr, but there is only one bufmgr per screen so they
should be identical anyway.

Chris says this was added primarly to avoid bo/bo_gem casting,
which was inconvenient.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Merge drm_bacon_bo_gem into drm_bacon_bo.
Kenneth Graunke [Mon, 3 Apr 2017 22:55:16 +0000 (15:55 -0700)]
i965/drm: Merge drm_bacon_bo_gem into drm_bacon_bo.

The separate class gives us a bit of extra encapsulation, but I don't
know that it's really worth the boilerplate.  I think we can reasonably
expect the rest of the driver to be responsible.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Merge bo->handle and bo_gem->gem_handle.
Kenneth Graunke [Mon, 3 Apr 2017 22:39:09 +0000 (15:39 -0700)]
i965/drm: Merge bo->handle and bo_gem->gem_handle.

These fields are the same value.  In the bad old days, bo->handle could
have been an identifier from the pre-GEM fake bufmgr, but that's long
gone.  Keep the "gem_handle" name for clarity.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Rewrite relocation handling.
Kenneth Graunke [Wed, 29 Mar 2017 03:20:00 +0000 (20:20 -0700)]
i965/drm: Rewrite relocation handling.

The execbuf2 kernel API requires us to construct two kinds of lists.
First is a "validation list" (struct drm_i915_gem_exec_object2[])
containing each BO referenced by the batch.  (The batch buffer itself
must be the last entry in this list.)  Each validation list entry
contains a pointer to the second kind of list: a relocation list.
The relocation list contains information about pointers to BOs that
the kernel may need to patch up if it relocates objects within the VMA.

This is a very general mechanism, allowing every BO to contain pointers
to other BOs.  libdrm_intel models this by giving each drm_intel_bo a
list of relocations to other BOs.  Together, these form "reloc trees".

Processing relocations involves a depth-first-search of the relocation
trees, starting from the batch buffer.  Care has to be taken not to
double-visit buffers.  Creating the validation list has to be deferred
until the last minute, after all relocations are emitted, so we have the
full tree present.  Calculating the amount of aperture space required to
pin those BOs also involves tree walking, which is expensive, so libdrm
has hacks to try and perform less expensive estimates.

For some reason, it also stored the validation list in the global
(per-screen) bufmgr structure, rather than as an local variable in the
execbuffer function, requiring locking for no good reason.

It also assumed that the batch would probably contain a relocation
every 2 DWords - which is absurdly high - and simply aborted if there
were more relocations than the max.  This meant the first relocation
from a BO would allocate 180kB of data structures!

This is way too complicated for our needs.  i965 only emits relocations
from the batchbuffer - all GPU commands and state such as SURFACE_STATE
live in the batch BO.  No other buffer uses relocations.  This means we
can have a single relocation list for the batchbuffer.  We can add a BO
to the validation list (set) the first time we emit a relocation to it.
We can easily keep a running tally of the aperture space required for
that list by adding the BO size when we add it to the validation list.

This patch overhauls the relocation system to do exactly that.  There
are many nice benefits:

- We have a flat relocation list instead of trees.
- We can produce the validation list up front.
- We can allocate smaller arrays and dynamically grow them.
- Aperture space checks are now (a + b <= c) instead of a tree walk.
- brw_batch_references() is a trivial validation list walk.
  It should be straightforward to make it O(1) in the future.
- We don't need to bloat each drm_bacon_bo with 32B of reloc data.
- We don't need to lock in execbuffer, as the data structures are
  context-local, and not per-screen.
- Significantly less code and a better match for what we're doing.
- The simpler system should make it easier to take advantage of
  I915_EXEC_NO_RELOC in a future patch.

Improves performance in Synmark 7.0's OglBatch7:

    - Skylake GT4e: 12.1499% +/- 2.29531%  (n=130)
    - Apollolake:   3.89245% +/- 0.598945% (n=35)

Improves performance in GFXBench4's gl_driver2 test:

    - Skylake GT4e: 3.18616% +/- 0.867791% (n=229)
    - Apollolake:   4.1776%  +/- 0.240847% (n=120)

v2: Feedback from Chris Wilson:
    - Omit explicit zero initializers for garbage execbuf fields.
    - Use .rsvd1 = ctx_id rather than i915_execbuffer2_set_context_id
    - Drop unnecessary fencing assertions.
    - Only use _WR variant of execbuf ioctl when necessary.
    - Shrink the arrays to be smaller by default.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Make register write check handle execbuffer directly.
Kenneth Graunke [Tue, 28 Mar 2017 23:13:41 +0000 (16:13 -0700)]
i965/drm: Make register write check handle execbuffer directly.

I'm about to rewrite how relocation handling works, at which point
drm_bacon_bo_emit_reloc() and drm_bacon_bo_mrb_exec() won't exist
anymore.  This code is already largely not using the batchbuffer
infrastructure, so just go all the way and handle relocations, the
validation list, and execbuffer ourselves.  That way, we don't have
to think the weird case where we only have a screen, and no context,
when redesigning the relocation handling.

v2: Write reloc.presumed_offset + reloc.delta into the batch, rather
    than duplicating the comment, so it's obvious that they match
    (suggested by Chris).  Also add a comment about why we don't do
    any error checking.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965: Make a screen::aperture_threshold field.
Kenneth Graunke [Fri, 31 Mar 2017 05:27:42 +0000 (22:27 -0700)]
i965: Make a screen::aperture_threshold field.

This is the threshold after which drm_intel_bufmgr_check_aperture_space
returns -ENOSPC, signalling that it thinks an execbuf is likely to fail
and we need to roll back and flush the batch.

We'll need this when we rewrite aperture space checking, shortly.
In the meantime, we can also use it in GLX_MESA_query_renderer.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965: Make/use a brw_batch_references() wrapper.
Kenneth Graunke [Tue, 28 Mar 2017 23:49:35 +0000 (16:49 -0700)]
i965: Make/use a brw_batch_references() wrapper.

We'll want to change the implementation of this shortly.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965: Use brw_emit_reloc() instead of drm_bacon_bo_emit_reloc().
Kenneth Graunke [Tue, 28 Mar 2017 21:41:39 +0000 (14:41 -0700)]
i965: Use brw_emit_reloc() instead of drm_bacon_bo_emit_reloc().

I'm about to make brw_emit_reloc do actual work, so everybody needs
to start using it and not the raw drm_bacon function.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965: Change intel_batchbuffer_reloc() into brw_emit_reloc().
Kenneth Graunke [Tue, 28 Mar 2017 22:03:49 +0000 (15:03 -0700)]
i965: Change intel_batchbuffer_reloc() into brw_emit_reloc().

This renames intel_batchbuffer_reloc to brw_emit_reloc and changes the
parameter naming and ordering to match drm_intel_bo_emit_reloc().

For now, it's a trivial wrapper that accesses batch->bo.  When we
rework relocations, it will start doing actual work.

target_offset should be expanded to a uint64_t to match the kernel,
but for now we leave it as its original 32-bit type.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Drop GEM_SW_FINISH stuff.
Kenneth Graunke [Mon, 3 Apr 2017 06:35:27 +0000 (23:35 -0700)]
i965/drm: Drop GEM_SW_FINISH stuff.

This is only useful when doing an incoherent CPU mapping of the current
scanout buffer.  That's a terrible plan, so we never do it.  We always
use an uncached GTT map.

So, this is useless.  Drop the code.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
7 years agoi965/drm: Drop code to search for an existing bufmgr.
Kenneth Graunke [Fri, 31 Mar 2017 16:44:54 +0000 (09:44 -0700)]
i965/drm: Drop code to search for an existing bufmgr.

This functionality was added by libdrm commit
743af59669386cb6e063fa4bd85f0a0b2da86295 (intel: make bufmgr_gem
shareable from different API) in an attempt to solve libva/mesa buffer
sharing problems.  Specifically, this was working around an issue hit
by Chromium, which used the same drm_fd for multiple APIs, and shared
buffers between them.

This code attempted to work around that issue by using the same bufmgr
for both libva and Mesa.  It worked because libdrm_intel was loaded by
both libraries.  However, now that Mesa has forked, we don't have a
common library, and this code cannot work.

The correct solution is to have each API open its own file descriptor
(and get a corresponding buffer manager), and then use PRIME export
and import to share BOs across those APIs.  Then the kernel can manage
those shared resources.  According to Chris, the kernel will pass back
the same handle for a prime FD if the lookup is from the same device FD.

We believe Chromium has since moved to this model.

In Mesa, there is already only one screen per FD, and so there will
only be one bufmgr per FD.  We don't need any of this code.

v2: Add a big warning comment written by Chris Wilson.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>