[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 15:28:46 UTC 2017


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?

>     +};
>     +
>     +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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