On Tue, May 16, 2017 at 03:44:54PM -0700, Jason Ekstrand wrote:
> When Sandy Bridge came out, surface state management suddenly became
> significantly more complicated because of HiZ, MSAA, and separate stencil.
> In order to deal with all of these complications, Paul Berry write BLORP
> which is a blit framework that's capable of handling all of the exotic
> cases we have to deal with in a modern Intel driver. As time went on,
> blorp was ported to Ivy Bridge and then Haswell. At Broadwell, we tried to
> get away from blorp but eventually decided that having one more copy of
> state setup wasn't so bad compared to dealing with meta so it was brought
> forward to gen8-9. However, it has never been back-ported to gen4-5...
> Until today!
>
> Why should we do this? For one thing, it's actually less code. The patch
> which actually adds gen4 support to blorp is around 300 LOC. If you add on
> the patch which adds SF program support, you get another 50. On the other
> hand, the meta PBO upload path is 450 lines of code all by itself and that
> doesn't include the DD table entry or the code we have to carry in i965 to
> support it. Secondly, it lets us unify a bunch of gen6 and gen4 stuff.
> You can already see in this series that I delete an entire blitframebuffers
> implementation because we were carrying 2 just so gen4-5 could have its
> own.
>
> This series doesn't actually get everything converted over but it does
> convert enough that I'm reasonably confident that it all works. In the
> process, this series fixes 12 tests: 2 on ILK, 2 on g45, and 8 on i965.
> I intentionally did most of the BLORP port in a single patch. This way
> it's easy for the reviewer to see both the new state setup code as well as
> the few modifications that have to be made to blorp_blit and blorp_clear to
> handle new cases created by gen4.
>
> The only thing I'm not entirely happy with is the way color write disables
> get plumbed through ISL. That said, I don't come up with a better
> mechanism so I'm fine with what I have.
>
> This series is available here:
>
> https://cgit.freedesktop.org/~jekstrand/mesa/log/?h=review/blorp-gen4
>
> Happy reviewing!
>
>
> Jason Ekstrand (43):
> i965/blorp: Do and end-of-pipe sync on both sides of fast-clear ops
> i965: Use blorp_copy for doing r8 stencil updates on HSW
> intel/blorp: Move the gen7 stencil format workaround to blorp_blit
> i965/miptree: Take first_level into account when converting to ISL
> i965/blorp: Properly handle mt->first_level
> intel/isl: Don't request space for stencil/hiz packets unless needed
Patches 2-6:
Reviewed-by: Topi Pohjolainen <topi.pohjolai...@intel.com>
> intel/isl: Add support for gen4 cube maps to get_image_offset_sa
> intel/isl: Add support for setting component write disables
> intel/isl: Add gen4_filter_tiling
Patches 8 and 9:
Reviewed-by: Topi Pohjolainen <topi.pohjolai...@intel.com>
> intel/genxml: Make a bunch of things offsets on gen4-5
> intel/gensml: Suffix KSP0 fields on Iron Lake
> intel/genxml: Sampler state is a pointer on gen4-5
> intel/genxml: Rename the CC_VIEWPORT pointer on gen4-5
> intel/genxml: Add SAMPLER_STATE to gen 4.5
> intel/genxml: Iron Lake doesn't support non-normalized sampler
> coordinates
> intel/genxml: Use the right subtype for VF_STATISTICS on gen4
> intel/genxml: Rename 3DSTATE_AA_LINE_PARAMS on gen5
> intel/decoder: Handle gen4 VF_STATISTICS and PIPELINE_SELECT
> intel/decoder: Handle the BLT ring in gen_group_get_length
> intel/compiler: Make brw_disasm take const assembly
> i965/sf: make brw_sf_prog_key::interp_mode an array
> i965/clip: Make brw_clip_prog_key::interp_mode an array
> i965: Move SF compilation to the compiler
> i965: Move clip program compilation to the compiler
> intel/blorp/blit: Add support for normalized coordinates
> intel/blorp: Pull the pipeline bits of blorp_exec into a helper
> intel/blorp: Delete isl_to_gen_ds_surfype
> intel/blorp: Don't use ffma directly
> intel/blorp: Re-arrange blorp_genX_exec.h
> intel/blorp: Make the common genX_blorp_exec code gen4-safe
> intel/blorp: Rename emit_viewport_state to emit_cc_viewport
> intel/blorp: Use designated initializers to set up VERTEX_ELEMENTS
> intel/blorp: Make convert_to_single_slice available outside blorp_blit
> intel/blorp: Add support for gen4-5 SF programs
> i965/gen4: Expose the guts of URB recalculation as a helper
> intel/blorp: Set additional brw_wm_prog_key fields on gen4-5
> i965: Add blorp support for gen4-5
> intel/blorp: Assert that no one tries to blit combined depth stencil
> i965: Use blorp for color blits on gen4-5
> i965: Use BLORP for color clears on gen4-5
> i965: Round copy size to the nearest block in intel_miptree_copy
> i965: Use blorp for CopyImageSubData on gen4-5
> i965/blorp: Support copyteximage on gen4-5
>
> src/intel/Makefile.sources | 8 +
> src/intel/blorp/blorp.c | 82 ++-
> src/intel/blorp/blorp_blit.c | 75 ++-
> src/intel/blorp/blorp_clear.c | 33 +-
> src/intel/blorp/blorp_genX_exec.h | 651
> ++++++++++++---------
> src/intel/blorp/blorp_priv.h | 18 +-
> src/intel/common/gen_decoder.c | 13 +-
> .../drivers/dri/i965 => intel/compiler}/brw_clip.h | 38 +-
> .../dri/i965 => intel/compiler}/brw_clip_line.c | 6 -
> .../dri/i965 => intel/compiler}/brw_clip_point.c | 4 -
> .../dri/i965 => intel/compiler}/brw_clip_tri.c | 8 +-
> .../i965 => intel/compiler}/brw_clip_unfilled.c | 39 +-
> .../dri/i965 => intel/compiler}/brw_clip_util.c | 6 -
> src/intel/compiler/brw_compile_clip.c | 96 +++
> .../compiler/brw_compile_sf.c} | 185 ++++--
> src/intel/compiler/brw_compiler.h | 114 ++++
> src/intel/compiler/brw_disasm.c | 20 +-
> src/intel/compiler/brw_eu.c | 4 +-
> src/intel/compiler/brw_eu.h | 6 +-
> src/intel/compiler/brw_eu_defines.h | 2 +
> src/intel/genxml/gen4.xml | 20 +-
> src/intel/genxml/gen45.xml | 79 ++-
> src/intel/genxml/gen5.xml | 25 +-
> src/intel/isl/isl.c | 39 +-
> src/intel/isl/isl.h | 20 +
> src/intel/isl/isl_gen4.c | 51 ++
> src/intel/isl/isl_gen4.h | 5 +
> src/intel/isl/isl_surface_state.c | 6 +
> src/intel/vulkan/genX_blorp_exec.c | 5 +-
> src/mesa/drivers/dri/i965/Makefile.sources | 11 +-
> src/mesa/drivers/dri/i965/brw_blorp.c | 97 ++-
> src/mesa/drivers/dri/i965/brw_blorp.h | 6 +
> src/mesa/drivers/dri/i965/brw_clear.c | 3 +-
> src/mesa/drivers/dri/i965/brw_clip.c | 110 +---
> src/mesa/drivers/dri/i965/brw_context.c | 3 +-
> src/mesa/drivers/dri/i965/brw_context.h | 23 +-
> src/mesa/drivers/dri/i965/brw_defines.h | 9 -
> src/mesa/drivers/dri/i965/brw_sf.c | 93 +--
> src/mesa/drivers/dri/i965/brw_sf.h | 111 ----
> src/mesa/drivers/dri/i965/brw_sf_state.c | 1 -
> src/mesa/drivers/dri/i965/brw_urb.c | 15 +-
> src/mesa/drivers/dri/i965/gen4_blorp_exec.h | 197 +++++++
> src/mesa/drivers/dri/i965/genX_blorp_exec.c | 14 +-
> src/mesa/drivers/dri/i965/genX_state_upload.c | 2 +-
> src/mesa/drivers/dri/i965/intel_blit.c | 4 +-
> src/mesa/drivers/dri/i965/intel_copy_image.c | 140 +----
> src/mesa/drivers/dri/i965/intel_fbo.c | 66 +--
> src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 21 +-
> 48 files changed, 1551 insertions(+), 1033 deletions(-)
> rename src/{mesa/drivers/dri/i965 => intel/compiler}/brw_clip.h (86%)
> rename src/{mesa/drivers/dri/i965 => intel/compiler}/brw_clip_line.c (99%)
> rename src/{mesa/drivers/dri/i965 => intel/compiler}/brw_clip_point.c (95%)
> rename src/{mesa/drivers/dri/i965 => intel/compiler}/brw_clip_tri.c (99%)
> rename src/{mesa/drivers/dri/i965 => intel/compiler}/brw_clip_unfilled.c
> (94%)
> rename src/{mesa/drivers/dri/i965 => intel/compiler}/brw_clip_util.c (99%)
> create mode 100644 src/intel/compiler/brw_compile_clip.c
> rename src/{mesa/drivers/dri/i965/brw_sf_emit.c =>
> intel/compiler/brw_compile_sf.c} (79%)
> delete mode 100644 src/mesa/drivers/dri/i965/brw_sf.h
> create mode 100644 src/mesa/drivers/dri/i965/gen4_blorp_exec.h
>
> --
> 2.5.0.400.gff86faf
>
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