| Commit message (Collapse) | Author | Age | Files | Lines |
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Move pipe states in ilo_context to the new ilo_state_vector. The motivation
is that ilo_context consists of several loosely related things. When we need
an ilo_context somewhere, we usually need only one or two of the things in it.
This change makes ilo_state_vector one such thing.
An immediate result is that we no longer need ilo_context in 3D pipelines,
something we have planned for since early days.
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Move the #define's and struct's to ilo_state.h. Move the inline functions and
function declarations to ilo_state_gen.h.
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Rename them to ilo_state_gen*.[ch].
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It is manipulated only in ilo_screen.c.
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Tested on my snb-gt2:
4 tests skip->pass in spec/EXT_texture_array
51 tests skip->pass in spec.glsl-3.30
4 tests skip->pass in spec/!OpenGL 3.3
No regressions; no skip->fail changes.
Signed-off-by: Chris Forbes <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Useful to know in some cases.
Reviewed-by: Jose Fonseca <[email protected]>
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Signed-off-by: Emil Velikov <[email protected]>
(cherry picked from commit 18571edea8f444fc6b4ed2b38f945f0ac533f384)
Conflicts:
docs/index.html
docs/relnotes.html
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Signed-off-by: Emil Velikov <[email protected]>
(cherry picked from commit 1b12af300dfa77c24088780e88200703653293d3)
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Signed-off-by: Emil Velikov <[email protected]>
(cherry picked from commit f95fcb17163a47674a89d2ab58cd5b2547a94720)
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Signed-off-by: Emil Velikov <[email protected]>
(cherry picked from commit 1e2b4120f705b8258da8cbc31bdb9fbfcd118603)
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Some users don't understand that these variables can break OpenGL.
The general is rule is that if an app supports MSAA, you mustn't use
GALLIUM_MSAA.
For example, if an app has an 8xMSAA FBO and GALLIUM_MSAA=4
is set, resolving the FBO to the back buffer will be rejected which will look
like this on all gallium drivers:
http://www.phoronix.com/scan.php?page=article&item=amd_radeonsi_msaa
The environment variables also have no effect on modern apps like TF2, but
there is still a performance hit due to wasted bandwidth and VRAM.
In a nutshell, it does more harm than good.
Cc: 10.2 10.3 <[email protected]>
Reviewed-by: Michel Dänzer <[email protected]>
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Fixes the mesa reflect demo and 6 tests under interpolation/
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I need to get the non-reciprocal version of W for interpolation, anyway.
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These instructions only have vex encodings, thus they can't be used without
avx. (Technically, one can still use avx-128 if avx isn't available because
the environment doesn't store the ymm registers, however I don't think llvm
can.)
Reviewed-by: Jose Fonseca <[email protected]>
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Geometry shaders was the only thing we needed to enable GLSL 1.50 and
OpenGL 3.2 in gen6.
v2: Layered clears do not work properly in gen6 with OpenGL 3.2. Kenneth
and Jordan realized that for this to work we also need
GL_AMD_vertex_shader_layered (which requires OpenGL 3.2, so it could not be
enabled before this patch), so we agreed to enable this together with
OpenGL 3.2 in this patch.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
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In gen6 we will use the geometry shader implementation from gen6_gs_visitor.cpp
and keep the implementation in brw_vec4_gs_visitor.cpp for gen7+. Notice that
gen6_gs_visitor inherits from brw_vec4_gs_visitor so it is not a completely
seprate implementation of geometry shaders.
Also, gen6 does not support multiple dispatch modes, its default operation mode
is equivalent to gen7's SINGLE mode, so select that in gen6 for consistency.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Uniforms declared as uniform blocks are stored in ubo surfaces and need to
be pulled from the geometry shader program so make sure we upload them first
and do the same for pull constants.
This fixes all piglit tests that use uniform blocks:
bin/shader_runner tests/spec/glsl-1.50/uniform_buffer/gs-*
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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For gen6 geometry shaders we use the first BRW_MAX_SOL_BINDINGS entries of the
binding table for transform feedback surfaces. However, vec4_visitor will
setup the binding table so that textures use the same space in the binding
table. This is done when calling assign_common_binding_table_offsets(0) as
part if its run() method.
To fix this clash we add a virtual method to the vec4_visitor hierarchy to
assign the binding table offsets, so that we can change this behavior
specifically for gen6 geometry shaders by mapping textures right after the
first BRW_MAX_SOL_BINDINGS entries.
Also, when there is no user-provided geometry shader, we only need to upload
the binding table if we have transform feedback, however, in the case of a
user-provided geometry shader, we can't only look into transform feedback
to make that decision.
This fixes multiple piglit tests for textureSize() and texelFetch() when these
functions are called from a geometry shader in gen6, like these:
bin/textureSize gs sampler2D -fbo -auto
bin/texelFetch gs usampler2D -fbo -auto
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Currently we buffer transform feedack varyings separately. This patch makes
it so that we reuse the values we have already buffered for all the output
varyings of the geometry shader instead.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Since geometry shaders can alter the value of varyings packed in the first
output VUE slot (PSIZ), we need to buffer it together with all the other
vertex data so we can emit the right value for each vertex when we do the
URB writes.
This fixes the following piglit test in gen6:
tests/spec/glsl-1.50/execution/redeclare-pervertex-out-subset-gs.shader_test
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Update gen6_gs_binding_table and gen6_sol_surface to use user-provided
geometry program information when present. This is necessary to implement
transform feedback support.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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This takes care of generating code required to handle transform feedback.
Notice that transform feedback isn't enabled yet, since that requires
additional setups in other parts of the code that will come in later patches.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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We will use this parameter in later patches to provide information relevant
to transform feedback that needs to be set as part of the FF_SYNC message.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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This opcode will be used when filling FF_SYNC header before
emitting vertices and their data.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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This opcode generates code to copy the specified destination index
into subregister 5 of the MRF message header.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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This opcode will be used when sending SVB WRITE messages to save
transform feedback outputs into Streamed Vertex Buffers.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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So far in gen6 we only used geometry shaders to implement transform feedback
in vertex shaders, so we assumed that the VUE map for the geometry shader
stage was always the same as for the vertex shader stage. This is no longer
true now that we support user provided geometry shaders in gen6 too.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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For this we will need to move PrimitiveID information, delivered in the thread
payload in r0.1, to a separate register (we use GS_OPCODE_SET_PRIMITIVE_ID
for this), then map the corresponding varying slot to that register in the
setup_payload() method.
Notice that we cannot use a virtual register as the destination for the
PrimitiveID because we need to map all input attributes to hardware registers
in setup_payload(), which happens before virtual registers are mapped to
hardware registers. We could work around that issue if we were able to compute
the first non-payload register in emit_prolog() and move the PrimitiveID
information to that register, but we can't because at that point we still
don't know the final number uniforms that will be included in the payload.
So, what we do is to place PrimitiveID information in r1, which is always
delivered as part of the payload but its only populated with data
relevant for transform feedback when we set GEN6_GS_SVBI_PAYLOAD_ENABLE
in the 3DSTATE_GS state packet.
When we implement transform feedback, we wil make sure to move the value of r1
to another register before we overwrite it with the PrimitiveID.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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In gen6 the geometry shader payload includes the PrimitiveID information in
r0.1. When the shader code uses glPimitiveIdIn we will have to move this to
a separate hardware register where we can map this attribute. This opcode
takes the selected destination register and moves r0.1 there.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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In gen6 we need to end the thread differently depending on whether we have
emitted at least one vertex or not. In case we did, the EOT message must
always include the COMPLETE flag or else the GPU hangs. If we have not
produced any output, however, we can't use the COMPLETE flag.
This would lead us to end the program with an ENDIF opcode, which we want
to avoid (and actually is not permitted since it hits an assertion), so
instead what we do is that we always request a new VUE handle every time we do
an URB WRITE, even for the last vertex we emit. With this we make sure that
whether we have emitted at least one vertex or none at all we have to finish the
thread without writing to the URB, which works for both cases by setting the
COMPLETE and UNUSED flags in the EOT message.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Just in case the GS algorithm does not call EndPrimitive() for the last
primitive produced. This is relevant only for non point outputs, since for
this we are already setting the PrimEnd flag on each vertex we emit.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Geometry shaders in gen6 are significantly different from gen7+ so it is better
to have them implemented in a different file rather than adding gen6 branching
paths all over brw_vec4_gs_visitor.cpp.
This commit adds an initial implementation that only handles point output, which
is the simplest case.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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In gen7+ we emit vertices as they come, however in gen6 geometry shaders we
have to buffer vertex data for all vertices and then emit it all in one go
at the end. To achieve this we need to generalize emit_urb_slot() to store
vertex data in general purpose registers and not only MRF registers.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Implemented by Ilia Mirkin <[email protected]>.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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We had GS_OPCODE_SET_DWORD_2_IMMED but this required its source argument to be
an immediate. In gen6 we need to set dword 2 of the URB write message header
from values stored in separate register, so we need something more flexible.
This change replaces GS_OPCODE_SET_DWORD_2_IMMED with GS_OPCODE_SET_DWORD_2.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Gen6 seems to require that EOT messages include the complete flag too or else
the GPU hangs. We add will this flag to the instruction when we emit the
thread end opcode.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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Gen6 geometry shaders need to allocate URB handles for each new vertex they
emit after the first (the URB handle for the first vertex is obtained via the
FF_SYNC message).
This opcode adds the URB allocation mechanism to regular URB writes.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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This implements the FF_SYNC message required in gen6 geometry shaders to
get the initial URB handle.
Acked-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
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The code required for gen6 and gen7+ is almost the same, so reuse it.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Jordan Justen <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
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See 7dfb4b2d00ddb8e5ee24d4c58eb9415dc4ccc21c for more details.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
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This is needed to support user-provided geometry shaders, since the
brw_ff_gs_prog atom in gen6 only takes care of implementing transform feedback
for vertex shaders.
If there is no user-provided geometry shader the implementation falls back to
the original code.
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
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Currently, gen6 only uses geometry shaders for transform feedback so the state
we emit is not suitable to accomodate general purpose, user-provided geometry
shaders. This patch paves the way to add these support and the needed
3DSTATE_GS packet modifications for it.
Previous code that emitted state to implement transform feedback in gen6 goes
to upload_gs_state_adhoc_tf().
Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
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Currently, when a geometry shader can't use dual object mode we fall back to
dual instance mode, however, when invocations == 1, single dispatch mode is
more performant and equally efficient in terms of register pressure.
Single dispatch mode requires that the driver can handle interleaving of
input registers, but this is already supported (dual instance mode has
the same requirement). However, to take full advantage of single dispatch mode
to reduce register pressure we would also need the ability to store two
separate vec4 output values into vec8 registers, which would approximately
double our capacity to store temporary values, but currently the vec4 visitor
and generator classes do not support this, so at the moment register pressure
in single and dual instance modes is the same.
Reviewed-by: Jordan Justen <[email protected]>
Acked-by: Kenneth Graunke <[email protected]>
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