[Bug 94139] [regression, HSW, IVB] piglit.spec.arb_compute_shader.minmax

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94139

            Bug ID: 94139
           Summary: [regression, HSW, IVB]
                    piglit.spec.arb_compute_shader.minmax
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Haswell and Ivybridge systems running stock linux 4.4 began failing this test,
bisected to:

be27f772e8b97031bf5177523a74ff8738d5adee
Author:     Samuel Pitoiset <samuel.pitoiset at gmail.com>
mesa: do not use a constant for MAX_COMPUTE_SHARED_SIZE

This will allow to query the underlying drivers for the maximum
total storage size of all variables declared as <shared> with
PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>

standard out from the test:
/tmp/build_root/m64/lib/piglit/bin/arb_compute_shader-minmax -auto -fbo
piglit: debug: Requested an OpenGL 3.1 Forward-Compatible Core Context, and
received a matching 3.3 context

token                                               minimum    value
GL_MAX_COMPUTE_WORK_GROUP_COUNT[0]                    65535    65535
GL_MAX_COMPUTE_WORK_GROUP_COUNT[1]                    65535    65535
GL_MAX_COMPUTE_WORK_GROUP_COUNT[2]                    65535    65535
GL_MAX_COMPUTE_WORK_GROUP_SIZE[0]                      1024     1120
GL_MAX_COMPUTE_WORK_GROUP_SIZE[1]                      1024     1120
GL_MAX_COMPUTE_WORK_GROUP_SIZE[2]                        64     1120
GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS                  1024     1120
GL_MAX_COMPUTE_UNIFORM_BLOCKS                            12       14
GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS                       16       32
GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS                     8       16
GL_MAX_COMPUTE_ATOMIC_COUNTERS                            8     4096
GL_MAX_COMPUTE_UNIFORM_COMPONENTS                       512    16384
GL_MAX_COMPUTE_IMAGE_UNIFORMS                             8       32

Standard Error

GL_MAX_COMPUTE_SHARED_MEMORY_SIZE                     32768        0 (ERROR)

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