This fixes a pile of hangs caused by the recent shuffling of resolves
and transitions. The particularly problematic case is when you have at
least three attachments with load ops of CLEAR, LOAD, CLEAR. In this
case, we execute the first CLEAR followed by a MI memcpy to copy the
clear values over for the LOAD followed by a second CLEAR. The MI
commands cause the first CLEAR to hang which causes us to get stuck on
the 3DSTATE_MULTISAMPLE in the second CLEAR.
We also add guards for BLORP to fix the same issue. These shouldn't
actually do anything right now because the only use of indirect clears
in BLORP today is for resolves which are already guarded by a render
cache flush and CS stall. However, this will guard us against potential
issues in the future.
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Nanley Chery <nanley.g.chery@intel.com>
Fixes warnings like
warning: implicit conversion from enumeration type 'enum isl_format' to
different enumeration type 'enum GEN10_SURFACE_FORMAT'
[-Wenum-conversion]
.SourceElementFormat = ISL_FORMAT_R32_UINT,
^~~~~~~~~~~~~~~~~~~
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Unless you have data, the compiler knows better than you whether a
function should be inlined.
No difference in the resulting binary with gcc-6.3.0 or clang-4.0.
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
We'll be performing a GPU memcpy in more places to copy small amounts of
data. Add an alternate function that thrashes less state.
v2:
- Make a new function (Jason Ekstrand).
- Move the #define into the function.
v3:
- Update the function name (Jason).
- Update comments.
v4: Use an indirect drawing register as TEMP_REG (Jason Ekstrand).
Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
A GPU memcpy function could alternatively be implemented using MI_*
commands. Provide more detail into how this one operates in case another
memcpy function is created.
v2:
- Update the commit message.
v3:
- Use 'memcpy' instead of 'cpy' (Jason Ekstrand)
- Shorten 'streamout' to 'so'
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com> (v2)
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
In order to get accurate statistics, we need to disable statistics for
blits, clears, and the surface state memcpy at the top of each secondary
command buffer. There are two possible approaches to this:
1) Disable before the blit/memcpy and re-enable afterwards
2) Move emitting 3DSTATE_VF_STATISTICS from initialization and make it
part of pipeline state and then just disabale statistics before
blits and memcpy operations.
Emitting 3DSTATE_VF_STATISTICS should be fairly cheap so it doesn't
really matter which path we take. We choose the second option as it's
more consistent with the way the rest of the statistics are enabled and
disabled.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
This code is far too complicated to cut and paste.
v2: Update the newly added genX_gpu_memcpy.c; const a few things.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This method of doing copies has the advantage of touching very little of
the GPU state. While it does disable all the shader stages, it doesn't
have to blow away binding tables, viewports, scissors, or any other bits of
dynamic state other than VBO 32 which is already reserved. All of the
state that it does touch is contained within a pipeline anyway so that's
the only thing that has to be dirtied.
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
