[Mesa-dev] [PATCH v03 12/38] i965: Split out enum from brw_eu_defines.h

Rafael Antognolli rafael.antognolli at intel.com
Tue May 2 15:55:11 UTC 2017


On Tue, May 02, 2017 at 08:44:05AM -0700, Jason Ekstrand wrote:
> On Tue, May 2, 2017 at 8:28 AM, Rafael Antognolli <rafael.antognolli at intel.com>
> wrote:
> 
>     On Tue, May 02, 2017 at 07:26:53AM -0700, Jason Ekstrand wrote:
>     > On Mon, May 1, 2017 at 6:43 PM, Rafael Antognolli <
>     rafael.antognolli at intel.com>
>     > wrote:
>     >
>     >     We need to use some enums inside genX_state_upload.c, but including
>     the
>     >     whole header will cause several conflicts between things defined in
>     this
>     >     header and the genxml auto-generated headers.
>     >
>     >     So create a separate header that is included both by brw_eu_defines.h
>     >     and genX_state_upload.c.
>     >
>     >     Signed-off-by: Rafael Antognolli <rafael.antognolli at intel.com>
>     >     Acked-by: Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
>     >     ---
>     >      src/intel/Makefile.sources              |  1 +-
>     >      src/intel/compiler/brw_defines_common.h | 46
>     ++++++++++++++++++++++++++-
>     >      src/intel/compiler/brw_eu_defines.h     | 22 +------------
>     >      3 files changed, 48 insertions(+), 21 deletions(-)
>     >      create mode 100644 src/intel/compiler/brw_defines_common.h
>     >
>     >     diff --git a/src/intel/Makefile.sources b/src/intel/Makefile.sources
>     >     index e9a39a6..652f376 100644
>     >     --- a/src/intel/Makefile.sources
>     >     +++ b/src/intel/Makefile.sources
>     >     @@ -27,6 +27,7 @@ COMPILER_FILES = \
>     >             compiler/brw_compiler.h \
>     >             compiler/brw_dead_control_flow.cpp \
>     >             compiler/brw_dead_control_flow.h \
>     >     +       compiler/brw_defines_common.h \
>     >             compiler/brw_disasm.c \
>     >             compiler/brw_eu.c \
>     >             compiler/brw_eu_compact.c \
>     >     diff --git a/src/intel/compiler/brw_defines_common.h b/src/intel/
>     compiler/
>     >     brw_defines_common.h
>     >     new file mode 100644
>     >     index 0000000..fdae125
>     >     --- /dev/null
>     >     +++ b/src/intel/compiler/brw_defines_common.h
>     >     @@ -0,0 +1,46 @@
>     >     +/*
>     >     + * Copyright © 2017 Intel Corporation
>     >     + *
>     >     + * Permission is hereby granted, free of charge, to any person
>     obtaining a
>     >     + * copy of this software and associated documentation files (the
>     >     "Software"),
>     >     + * to deal in the Software without restriction, including without
>     >     limitation
>     >     + * the rights to use, copy, modify, merge, publish, distribute,
>     >     sublicense,
>     >     + * and/or sell copies of the Software, and to permit persons to whom
>     the
>     >     + * Software is furnished to do so, subject to the following
>     conditions:
>     >     + *
>     >     + * The above copyright notice and this permission notice (including
>     the
>     >     next
>     >     + * paragraph) shall be included in all copies or substantial
>     portions of
>     >     the
>     >     + * Software.
>     >     + *
>     >     + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
>     EXPRESS
>     >     OR
>     >     + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
>     >     MERCHANTABILITY,
>     >     + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO
>     EVENT
>     >     SHALL
>     >     + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
>     OR
>     >     OTHER
>     >     + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
>     ARISING
>     >     + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
>     OTHER
>     >     DEALINGS
>     >     + * IN THE SOFTWARE.
>     >     + */
>     >     +
>     >     +#ifndef BRW_DEFINES_COMMON_H
>     >     +#endif // BRW_DEFINES_COMMON_H
>     >     +
>     >     +enum brw_pixel_shader_computed_depth_mode {
>     >     +   BRW_PSCDEPTH_OFF   = 0, /* PS does not compute depth */
>     >     +   BRW_PSCDEPTH_ON    = 1, /* PS computes depth; no guarantee about
>     value
>     >     */
>     >     +   BRW_PSCDEPTH_ON_GE = 2, /* PS guarantees output depth >= source
>     depth *
>     >     /
>     >     +   BRW_PSCDEPTH_ON_LE = 3, /* PS guarantees output depth <= source
>     depth *
>     >     /
>     >
>     >
>     > These are provided by the pack header at least on gen8.  If they're not
>     > available elsewhere, we should just add them.
> 
>     Hmm... good point. They are values to "Pixel Shader Computed Depth Mode"
>     in 3DSTATE_PS_EXTRA, which is only available in gen7+, so where would be
>     a good place for gen6?
> 
> 
> 3DSTATE_WM::PixelShaderComputedDepthMode is a boolean so it doesn't have actual
> enum values.  That said, do we need the enum values for gen6?

We need writes_depth on gen6 too.

So, I can just compare it to 0:
bool writes_depth = wm_prog_data->computed_depth_mode != 0;

Is that fine?

>     >     +};
>     >     +
>     >     +enum brw_barycentric_mode {
>     >     +   BRW_BARYCENTRIC_PERSPECTIVE_PIXEL       = 0,
>     >     +   BRW_BARYCENTRIC_PERSPECTIVE_CENTROID    = 1,
>     >     +   BRW_BARYCENTRIC_PERSPECTIVE_SAMPLE      = 2,
>     >     +   BRW_BARYCENTRIC_NONPERSPECTIVE_PIXEL    = 3,
>     >     +   BRW_BARYCENTRIC_NONPERSPECTIVE_CENTROID = 4,
>     >     +   BRW_BARYCENTRIC_NONPERSPECTIVE_SAMPLE   = 5,
>     >
>     >
>     > These are also in the pack header.
> 
>     OK.
>    
>     >
>     >     +   BRW_BARYCENTRIC_MODE_COUNT              = 6
>     >     +};
>     >     +#define BRW_BARYCENTRIC_NONPERSPECTIVE_BITS \
>     >     +   ((1 << BRW_BARYCENTRIC_NONPERSPECTIVE_PIXEL) | \
>     >     +    (1 << BRW_BARYCENTRIC_NONPERSPECTIVE_CENTROID) | \
>     >     +    (1 << BRW_BARYCENTRIC_NONPERSPECTIVE_SAMPLE))
>     >
>     >
> 
>     I think I can just define in genX_state_upload.c something like:
> 
>     #define BARYCENTRYC_NONPERSPECTIVE_BITS \
>        BIM_PERSPECTIVE_PIXEL | \
>        BIM_PERSPECTIVE_CENTROID | \
>        BIM_PERSPECTIVE_SAMPLE
> 
>     And then I don't have to include that file.
> 
>     >
>     >     diff --git a/src/intel/compiler/brw_eu_defines.h b/src/intel/compiler
>     /
>     >     brw_eu_defines.h
>     >     index 13a70f6..51f9cbc 100644
>     >     --- a/src/intel/compiler/brw_eu_defines.h
>     >     +++ b/src/intel/compiler/brw_eu_defines.h
>     >     @@ -33,6 +33,7 @@
>     >      #define BRW_EU_DEFINES_H
>     >
>     >      #include "util/macros.h"
>     >     +#include "brw_defines_common.h"
>     >
>     >      /* The following hunk, up-to "Execution Unit" is used by both the
>     >       * intel/compiler and i965 codebase. */
>     >     @@ -72,27 +73,6 @@
>     >      #define _3DPRIM_TRIFAN_NOSTIPPLE  0x16
>     >      #define _3DPRIM_PATCHLIST(n) ({ assert(n > 0 && n <= 32); 0x20 + (n
>     - 1);
>     >     })
>     >
>     >     -enum brw_barycentric_mode {
>     >     -   BRW_BARYCENTRIC_PERSPECTIVE_PIXEL       = 0,
>     >     -   BRW_BARYCENTRIC_PERSPECTIVE_CENTROID    = 1,
>     >     -   BRW_BARYCENTRIC_PERSPECTIVE_SAMPLE      = 2,
>     >     -   BRW_BARYCENTRIC_NONPERSPECTIVE_PIXEL    = 3,
>     >     -   BRW_BARYCENTRIC_NONPERSPECTIVE_CENTROID = 4,
>     >     -   BRW_BARYCENTRIC_NONPERSPECTIVE_SAMPLE   = 5,
>     >     -   BRW_BARYCENTRIC_MODE_COUNT              = 6
>     >     -};
>     >     -#define BRW_BARYCENTRIC_NONPERSPECTIVE_BITS \
>     >     -   ((1 << BRW_BARYCENTRIC_NONPERSPECTIVE_PIXEL) | \
>     >     -    (1 << BRW_BARYCENTRIC_NONPERSPECTIVE_CENTROID) | \
>     >     -    (1 << BRW_BARYCENTRIC_NONPERSPECTIVE_SAMPLE))
>     >     -
>     >     -enum brw_pixel_shader_computed_depth_mode {
>     >     -   BRW_PSCDEPTH_OFF   = 0, /* PS does not compute depth */
>     >     -   BRW_PSCDEPTH_ON    = 1, /* PS computes depth; no guarantee about
>     value
>     >     */
>     >     -   BRW_PSCDEPTH_ON_GE = 2, /* PS guarantees output depth >= source
>     depth *
>     >     /
>     >     -   BRW_PSCDEPTH_ON_LE = 3, /* PS guarantees output depth <= source
>     depth *
>     >     /
>     >     -};
>     >     -
>     >      /* Bitfields for the URB_WRITE message, DW2 of message header: */
>     >      #define URB_WRITE_PRIM_END             0x1
>     >      #define URB_WRITE_PRIM_START           0x2
>     >     --
>     >     git-series 0.9.1
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>     >
>     >
> 
> 


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