i965: Add #defines for Broadwell HiZ workarounds in CACHE_MODE_1.

This patch adds macros needed for the HiZ PMA stall optimization.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
i965: Implement the PMA stall fix.

Certain non-promoted depth cases typically incur stalls.  In very
specific cases, we can enable a workaround which improves performance.

Improves performance in GLBenchmark 2.7 TRex by 1.17762% +/- 0.448765%
(n=75) at 1280x720 on Broadwell GT3.

Haswell has this feature as well, but we can't currently write registers
from userspace batches (and we'd incur additional software batch
scanning overhead as well), so we haven't enabled it.  Broadwell allows
us to write CACHE_MODE_1.  Backporters beware: the formula and flushing
incantation differs between Haswell and Broadwell.

v2: Move pma_stall_bits from brw->state to brw itself (requested by
    Kristian Høgsberg).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
i965: Re-enable Z16 on Gen8+.

Improves performance in GLBenchmark 2.7 TRex by 3.88889% +/- 0.336383%
(n=80) at 1280x720 on Broadwell GT3.  Together with the previous patch,
it improves performance by 5.42738% +/- 0.541971% (n=10) at 1920x1080.

Note that without the PMA stall fix, this would instead decrease
performance by 22%.

v2: Update comment (noticed by Kristian Høgsberg).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
ilo: add drm_configuration for the pipe-target

Allows the driver to advertise DMA-BUF and throttling.
i965: Fix sampler state pointer adjustment for nonconst samplers

This started hitting an assertion recently. Only affects Haswell
(Ivybridge doesn't support this meddling with the sampler state pointer,
and ARB_gpu_shader5 is not enabled yet on Broadwell)

14 Piglits crash->pass.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
util: Implement unreachable for MSVC using __assume

Based on the description of __assume at:

http://msdn.microsoft.com/en-us/library/1b3fsfxw.aspx

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
mesa: Silence unused parameter warning in check_context_limits in non-debug builds

../../src/mesa/main/context.c: In function 'check_context_limits':
../../src/mesa/main/context.c:733:41: warning: unused parameter 'ctx' [-Wunused-parameter]

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
ilo: fix intel_bo_wait() on kernel 3.17

drm_intel_gem_bo_wait() with negative timeout is broken on kernel 3.17.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: add eu_count and thread_count to ilo_dev_info

They will be used to report compute params or program compute states.
thread_count can also be used for 3DSTATE_VS.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: fix compute params

Based on beignet, hardware capabilities, and OpenCL requirements.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: add kernel queries for compute shaders

We need to know the local/input/private sizes and others.  This is not
complete.  We need many others for CURBE setup.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: use a dynamic array for global bindings

Use util_dynarray in ilo_set_global_binding() to allow for unlimited number of
global bindings.  Add a comment for global bindings.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: add ilo_finalize_compute_states()

It updates the handles of the global bindings.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: update genhw headers for media pipeline

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: disassemble TS messages

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: disassemble DP DC messages

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: improve media command helpers

They were written for Gen6 but mostly untested.  Make them work for Gen7+.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: add ilo_render_emit_launch_grid()

ilo_render_emit_launch_grid() emits all the hardware states needed for a
launch_grid() call.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: hook up launch_grid()

All we need to do is to upload the input data and call
ilo_render_emit_launch_grid() with space checking.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
ilo: let ilo_shader_compile_cs() return a dummy shader

The dummy shader sends an EOT message to end itself.  There are many more
works need to be done on the compiler side before we can advertise
PIPE_CAP_COMPUTE.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>