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/*
* Copyright (C) 2019 Collabora, Ltd.
*
* 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 __PANFROST_QUIRKS_H
#define __PANFROST_QUIRKS_H
/* Model-specific quirks requiring workarounds/etc. Quirks may be errata
* requiring a workaround, or features. We're trying to be quirk-positive
* here; quirky is the best! */
/* Whether the GPU lacks the capability for hierarchical tiling, without an
* "Advanced Tiling Unit", instead requiring a single bin size for the entire
* framebuffer be selected by the driver */
#define MIDGARD_NO_HIER_TILING (1 << 0)
/* Whether this GPU lacks native multiple render target support and accordingly
* needs SFBDs instead, with complex lowering with ES3 */
#define MIDGARD_SFBD (1 << 1)
/* Whether fp16 is broken in the compiler. Hopefully this quirk will go away
* over time */
#define MIDGARD_BROKEN_FP16 (1 << 2)
/* What it says on the tin */
#define IS_BIFROST (1 << 3)
/* What it says on the tin */
#define HAS_SWIZZLES (1 << 4)
/* Support for setting shader to NULL for masking out colour (while allowing
* Z/S updates to proceed) */
#define MIDGARD_SHADERLESS (1 << 5)
/* Whether this GPU lacks support for any typed stores in blend shader,
* requiring packing instead */
#define MIDGARD_NO_TYPED_BLEND_STORES (1 << 6)
/* Whether this GPU lacks support for any typed loads, requiring packing */
#define MIDGARD_NO_TYPED_BLEND_LOADS (1 << 7)
/* Lack support for colour pack/unpack opcodes */
#define NO_BLEND_PACKS (1 << 8)
/* Has some missing formats for typed loads */
#define MIDGARD_MISSING_LOADS (1 << 9)
/* Quirk collections common to particular uarchs */
#define MIDGARD_QUIRKS (MIDGARD_BROKEN_FP16 | HAS_SWIZZLES \
| MIDGARD_NO_TYPED_BLEND_STORES \
| MIDGARD_MISSING_LOADS)
#define BIFROST_QUIRKS (IS_BIFROST | NO_BLEND_PACKS)
static inline unsigned
panfrost_get_quirks(unsigned gpu_id)
{
switch (gpu_id) {
case 0x600:
case 0x620:
return MIDGARD_QUIRKS | MIDGARD_SFBD
| MIDGARD_NO_TYPED_BLEND_LOADS
| NO_BLEND_PACKS;
case 0x720:
return MIDGARD_QUIRKS | MIDGARD_SFBD | MIDGARD_NO_HIER_TILING;
case 0x820:
case 0x830:
return MIDGARD_QUIRKS | MIDGARD_NO_HIER_TILING;
case 0x750:
/* Someone should investigate the broken loads? */
return MIDGARD_QUIRKS | MIDGARD_NO_TYPED_BLEND_LOADS
| NO_BLEND_PACKS | MIDGARD_SHADERLESS;
case 0x860:
case 0x880:
return MIDGARD_QUIRKS | MIDGARD_SHADERLESS;
case 0x6000: /* G71 */
return BIFROST_QUIRKS | HAS_SWIZZLES;
case 0x7093: /* G31 */
case 0x7212: /* G52 */
return BIFROST_QUIRKS;
default:
unreachable("Unknown Panfrost GPU ID");
}
}
#endif
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