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/*
* Copyright 2016 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.
*/
#include <stdint.h>
#define __gen_address_type uint64_t
#define __gen_user_data void
static inline uint64_t
__gen_combine_address(void *data, void *loc, uint64_t addr, uint32_t delta)
{
return addr + delta;
}
#include "genxml/gen_macros.h"
#include "genxml/genX_pack.h"
#include "isl_priv.h"
#define __PASTE2(x, y) x ## y
#define __PASTE(x, y) __PASTE2(x, y)
#define isl_genX(x) __PASTE(isl_, genX(x))
#if GEN_GEN >= 8
static const uint8_t isl_to_gen_halign[] = {
[4] = HALIGN4,
[8] = HALIGN8,
[16] = HALIGN16,
};
#elif GEN_GEN >= 7
static const uint8_t isl_to_gen_halign[] = {
[4] = HALIGN_4,
[8] = HALIGN_8,
};
#endif
#if GEN_GEN >= 8
static const uint8_t isl_to_gen_valign[] = {
[4] = VALIGN4,
[8] = VALIGN8,
[16] = VALIGN16,
};
#elif GEN_GEN >= 6
static const uint8_t isl_to_gen_valign[] = {
[2] = VALIGN_2,
[4] = VALIGN_4,
};
#endif
#if GEN_GEN >= 8
static const uint8_t isl_to_gen_tiling[] = {
[ISL_TILING_LINEAR] = LINEAR,
[ISL_TILING_X] = XMAJOR,
[ISL_TILING_Y0] = YMAJOR,
[ISL_TILING_Yf] = YMAJOR,
[ISL_TILING_Ys] = YMAJOR,
[ISL_TILING_W] = WMAJOR,
};
#endif
#if GEN_GEN >= 7
static const uint32_t isl_to_gen_multisample_layout[] = {
[ISL_MSAA_LAYOUT_NONE] = MSFMT_MSS,
[ISL_MSAA_LAYOUT_INTERLEAVED] = MSFMT_DEPTH_STENCIL,
[ISL_MSAA_LAYOUT_ARRAY] = MSFMT_MSS,
};
#endif
#if GEN_GEN >= 9
static const uint32_t isl_to_gen_aux_mode[] = {
[ISL_AUX_USAGE_NONE] = AUX_NONE,
[ISL_AUX_USAGE_HIZ] = AUX_HIZ,
[ISL_AUX_USAGE_MCS] = AUX_CCS_D,
[ISL_AUX_USAGE_CCS_D] = AUX_CCS_D,
[ISL_AUX_USAGE_CCS_E] = AUX_CCS_E,
};
#elif GEN_GEN >= 8
static const uint32_t isl_to_gen_aux_mode[] = {
[ISL_AUX_USAGE_NONE] = AUX_NONE,
[ISL_AUX_USAGE_HIZ] = AUX_HIZ,
[ISL_AUX_USAGE_MCS] = AUX_MCS,
[ISL_AUX_USAGE_CCS_D] = AUX_MCS,
};
#endif
static uint8_t
get_surftype(enum isl_surf_dim dim, isl_surf_usage_flags_t usage)
{
switch (dim) {
default:
unreachable("bad isl_surf_dim");
case ISL_SURF_DIM_1D:
assert(!(usage & ISL_SURF_USAGE_CUBE_BIT));
return SURFTYPE_1D;
case ISL_SURF_DIM_2D:
if (usage & ISL_SURF_USAGE_STORAGE_BIT) {
/* Storage images are always plain 2-D, not cube */
return SURFTYPE_2D;
} else if (usage & ISL_SURF_USAGE_CUBE_BIT) {
return SURFTYPE_CUBE;
} else {
return SURFTYPE_2D;
}
case ISL_SURF_DIM_3D:
assert(!(usage & ISL_SURF_USAGE_CUBE_BIT));
return SURFTYPE_3D;
}
}
/**
* Get the horizontal and vertical alignment in the units expected by the
* hardware. Note that this does NOT give you the actual hardware enum values
* but an index into the isl_to_gen_[hv]align arrays above.
*/
static inline struct isl_extent3d
get_image_alignment(const struct isl_surf *surf)
{
if (GEN_GEN >= 9) {
if (isl_tiling_is_std_y(surf->tiling) ||
surf->dim_layout == ISL_DIM_LAYOUT_GEN9_1D) {
/* The hardware ignores the alignment values. Anyway, the surface's
* true alignment is likely outside the enum range of HALIGN* and
* VALIGN*.
*/
return isl_extent3d(4, 4, 1);
} else {
/* In Skylake, RENDER_SUFFACE_STATE.SurfaceVerticalAlignment is in units
* of surface elements (not pixels nor samples). For compressed formats,
* a "surface element" is defined as a compression block. For example,
* if SurfaceVerticalAlignment is VALIGN_4 and SurfaceFormat is an ETC2
* format (ETC2 has a block height of 4), then the vertical alignment is
* 4 compression blocks or, equivalently, 16 pixels.
*/
return isl_surf_get_image_alignment_el(surf);
}
} else {
/* Pre-Skylake, RENDER_SUFFACE_STATE.SurfaceVerticalAlignment is in
* units of surface samples. For example, if SurfaceVerticalAlignment
* is VALIGN_4 and the surface is singlesampled, then for any surface
* format (compressed or not) the vertical alignment is
* 4 pixels.
*/
return isl_surf_get_image_alignment_sa(surf);
}
}
#if GEN_GEN >= 8
static uint32_t
get_qpitch(const struct isl_surf *surf)
{
switch (surf->dim_layout) {
default:
unreachable("Bad isl_surf_dim");
case ISL_DIM_LAYOUT_GEN4_2D:
case ISL_DIM_LAYOUT_GEN4_3D:
if (GEN_GEN >= 9) {
return isl_surf_get_array_pitch_el_rows(surf);
} else {
/* From the Broadwell PRM for RENDER_SURFACE_STATE.QPitch
*
* "This field must be set to an integer multiple of the Surface
* Vertical Alignment. For compressed textures (BC*, FXT1,
* ETC*, and EAC* Surface Formats), this field is in units of
* rows in the uncompressed surface, and must be set to an
* integer multiple of the vertical alignment parameter "j"
* defined in the Common Surface Formats section."
*/
return isl_surf_get_array_pitch_sa_rows(surf);
}
case ISL_DIM_LAYOUT_GEN9_1D:
/* QPitch is usually expressed as rows of surface elements (where
* a surface element is an compression block or a single surface
* sample). Skylake 1D is an outlier.
*
* From the Skylake BSpec >> Memory Views >> Common Surface
* Formats >> Surface Layout and Tiling >> 1D Surfaces:
*
* Surface QPitch specifies the distance in pixels between array
* slices.
*/
return isl_surf_get_array_pitch_el(surf);
}
}
#endif /* GEN_GEN >= 8 */
void
isl_genX(surf_fill_state_s)(const struct isl_device *dev, void *state,
const struct isl_surf_fill_state_info *restrict info)
{
struct GENX(RENDER_SURFACE_STATE) s = { 0 };
s.SurfaceType = get_surftype(info->surf->dim, info->view->usage);
s.SurfaceFormat = info->view->format;
#if GEN_IS_HASWELL
s.IntegerSurfaceFormat = isl_format_has_int_channel(s.SurfaceFormat);
#endif
s.Width = info->surf->logical_level0_px.width - 1;
s.Height = info->surf->logical_level0_px.height - 1;
/* In the gen6 PRM Volume 1 Part 1: Graphics Core, Section 7.18.3.7.1
* (Surface Arrays For all surfaces other than separate stencil buffer):
*
* "[DevSNB] Errata: Sampler MSAA Qpitch will be 4 greater than the value
* calculated in the equation above , for every other odd Surface Height
* starting from 1 i.e. 1,5,9,13"
*
* Since this Qpitch errata only impacts the sampler, we have to adjust the
* input for the rendering surface to achieve the same qpitch. For the
* affected heights, we increment the height by 1 for the rendering
* surface.
*/
if (GEN_GEN == 6 && (info->view->usage & ISL_SURF_USAGE_RENDER_TARGET_BIT) &&
info->surf->samples > 1 &&
(info->surf->logical_level0_px.height % 4) == 1)
s.Height++;
switch (s.SurfaceType) {
case SURFTYPE_1D:
case SURFTYPE_2D:
/* From the Ivy Bridge PRM >> RENDER_SURFACE_STATE::MinimumArrayElement:
*
* "If Number of Multisamples is not MULTISAMPLECOUNT_1, this field
* must be set to zero if this surface is used with sampling engine
* messages."
*
* This restriction appears to exist only on Ivy Bridge.
*/
if (GEN_GEN == 7 && !GEN_IS_HASWELL && !ISL_DEV_IS_BAYTRAIL(dev) &&
(info->view->usage & ISL_SURF_USAGE_TEXTURE_BIT) &&
info->surf->samples > 1)
assert(info->view->base_array_layer == 0);
s.MinimumArrayElement = info->view->base_array_layer;
/* From the Broadwell PRM >> RENDER_SURFACE_STATE::Depth:
*
* For SURFTYPE_1D, 2D, and CUBE: The range of this field is reduced
* by one for each increase from zero of Minimum Array Element. For
* example, if Minimum Array Element is set to 1024 on a 2D surface,
* the range of this field is reduced to [0,1023].
*
* In other words, 'Depth' is the number of array layers.
*/
s.Depth = info->view->array_len - 1;
/* From the Broadwell PRM >> RENDER_SURFACE_STATE::RenderTargetViewExtent:
*
* For Render Target and Typed Dataport 1D and 2D Surfaces:
* This field must be set to the same value as the Depth field.
*/
if (info->view->usage & (ISL_SURF_USAGE_RENDER_TARGET_BIT |
ISL_SURF_USAGE_STORAGE_BIT))
s.RenderTargetViewExtent = s.Depth;
break;
case SURFTYPE_CUBE:
s.MinimumArrayElement = info->view->base_array_layer;
/* Same as SURFTYPE_2D, but divided by 6 */
s.Depth = info->view->array_len / 6 - 1;
if (info->view->usage & (ISL_SURF_USAGE_RENDER_TARGET_BIT |
ISL_SURF_USAGE_STORAGE_BIT))
s.RenderTargetViewExtent = s.Depth;
break;
case SURFTYPE_3D:
s.MinimumArrayElement = info->view->base_array_layer;
/* From the Broadwell PRM >> RENDER_SURFACE_STATE::Depth:
*
* If the volume texture is MIP-mapped, this field specifies the
* depth of the base MIP level.
*/
s.Depth = info->surf->logical_level0_px.depth - 1;
/* From the Broadwell PRM >> RENDER_SURFACE_STATE::RenderTargetViewExtent:
*
* For Render Target and Typed Dataport 3D Surfaces: This field
* indicates the extent of the accessible 'R' coordinates minus 1 on
* the LOD currently being rendered to.
*
* The docs specify that this only matters for render targets and
* surfaces used with typed dataport messages. Prior to Ivy Bridge, the
* Depth field has more bits than RenderTargetViewExtent so we can have
* textures with more levels than we can render to. In order to prevent
* assert-failures in the packing function below, we only set the field
* when it's actually going to be used by the hardware.
*/
if (info->view->usage & (ISL_SURF_USAGE_RENDER_TARGET_BIT |
ISL_SURF_USAGE_STORAGE_BIT)) {
s.RenderTargetViewExtent = isl_minify(info->surf->logical_level0_px.depth,
info->view->base_level) - 1;
}
break;
default:
unreachable("bad SurfaceType");
}
#if GEN_GEN >= 7
s.SurfaceArray = info->surf->dim != ISL_SURF_DIM_3D;
#endif
if (info->view->usage & ISL_SURF_USAGE_RENDER_TARGET_BIT) {
/* For render target surfaces, the hardware interprets field
* MIPCount/LOD as LOD. The Broadwell PRM says:
*
* MIPCountLOD defines the LOD that will be rendered into.
* SurfaceMinLOD is ignored.
*/
s.MIPCountLOD = info->view->base_level;
s.SurfaceMinLOD = 0;
} else {
/* For non render target surfaces, the hardware interprets field
* MIPCount/LOD as MIPCount. The range of levels accessible by the
* sampler engine is [SurfaceMinLOD, SurfaceMinLOD + MIPCountLOD].
*/
s.SurfaceMinLOD = info->view->base_level;
s.MIPCountLOD = MAX(info->view->levels, 1) - 1;
}
#if GEN_GEN >= 9
/* We don't use miptails yet. The PRM recommends that you set "Mip Tail
* Start LOD" to 15 to prevent the hardware from trying to use them.
*/
s.TiledResourceMode = NONE;
s.MipTailStartLOD = 15;
#endif
#if GEN_GEN >= 6
const struct isl_extent3d image_align = get_image_alignment(info->surf);
s.SurfaceVerticalAlignment = isl_to_gen_valign[image_align.height];
#if GEN_GEN >= 7
s.SurfaceHorizontalAlignment = isl_to_gen_halign[image_align.width];
#endif
#endif
if (info->surf->dim_layout == ISL_DIM_LAYOUT_GEN9_1D) {
/* For gen9 1-D textures, surface pitch is ignored */
s.SurfacePitch = 0;
} else {
s.SurfacePitch = info->surf->row_pitch - 1;
}
#if GEN_GEN >= 8
s.SurfaceQPitch = get_qpitch(info->surf) >> 2;
#elif GEN_GEN == 7
s.SurfaceArraySpacing = info->surf->array_pitch_span ==
ISL_ARRAY_PITCH_SPAN_COMPACT;
#endif
#if GEN_GEN >= 8
s.TileMode = isl_to_gen_tiling[info->surf->tiling];
#else
s.TiledSurface = info->surf->tiling != ISL_TILING_LINEAR,
s.TileWalk = info->surf->tiling == ISL_TILING_Y0 ? TILEWALK_YMAJOR :
TILEWALK_XMAJOR,
#endif
#if GEN_GEN >= 8
s.RenderCacheReadWriteMode = WriteOnlyCache;
#else
s.RenderCacheReadWriteMode = 0;
#endif
if (info->view->usage & ISL_SURF_USAGE_CUBE_BIT) {
#if GEN_GEN >= 8
s.CubeFaceEnablePositiveZ = 1;
s.CubeFaceEnableNegativeZ = 1;
s.CubeFaceEnablePositiveY = 1;
s.CubeFaceEnableNegativeY = 1;
s.CubeFaceEnablePositiveX = 1;
s.CubeFaceEnableNegativeX = 1;
#else
s.CubeFaceEnables = 0x3f;
#endif
}
#if GEN_GEN >= 6
s.NumberofMultisamples = ffs(info->surf->samples) - 1;
#if GEN_GEN >= 7
s.MultisampledSurfaceStorageFormat =
isl_to_gen_multisample_layout[info->surf->msaa_layout];
#endif
#endif
#if (GEN_GEN >= 8 || GEN_IS_HASWELL)
s.ShaderChannelSelectRed = info->view->channel_select[0];
s.ShaderChannelSelectGreen = info->view->channel_select[1];
s.ShaderChannelSelectBlue = info->view->channel_select[2];
s.ShaderChannelSelectAlpha = info->view->channel_select[3];
#endif
s.SurfaceBaseAddress = info->address;
#if GEN_GEN >= 6
s.MOCS = info->mocs;
#endif
#if GEN_GEN > 4 || GEN_IS_G4X
if (info->x_offset_sa != 0 || info->y_offset_sa != 0) {
/* There are fairly strict rules about when the offsets can be used.
* These are mostly taken from the Sky Lake PRM documentation for
* RENDER_SURFACE_STATE.
*/
assert(info->surf->tiling != ISL_TILING_LINEAR);
assert(info->surf->dim == ISL_SURF_DIM_2D);
assert(isl_is_pow2(isl_format_get_layout(info->view->format)->bpb));
assert(info->surf->levels == 1);
assert(info->surf->logical_level0_px.array_len == 1);
assert(info->aux_usage == ISL_AUX_USAGE_NONE);
if (GEN_GEN >= 8) {
/* Broadwell added more rules. */
assert(info->surf->samples == 1);
if (isl_format_get_layout(info->view->format)->bpb == 8)
assert(info->x_offset_sa % 16 == 0);
if (isl_format_get_layout(info->view->format)->bpb == 16)
assert(info->x_offset_sa % 8 == 0);
}
#if GEN_GEN >= 7
s.SurfaceArray = false;
#endif
}
const unsigned x_div = 4;
const unsigned y_div = GEN_GEN >= 8 ? 4 : 2;
assert(info->x_offset_sa % x_div == 0);
assert(info->y_offset_sa % y_div == 0);
s.XOffset = info->x_offset_sa / x_div;
s.YOffset = info->y_offset_sa / y_div;
#else
assert(info->x_offset_sa == 0);
assert(info->y_offset_sa == 0);
#endif
#if GEN_GEN >= 7
if (info->aux_surf && info->aux_usage != ISL_AUX_USAGE_NONE) {
struct isl_tile_info tile_info;
isl_surf_get_tile_info(dev, info->aux_surf, &tile_info);
uint32_t pitch_in_tiles =
info->aux_surf->row_pitch / tile_info.phys_extent_B.width;
#if GEN_GEN >= 8
assert(GEN_GEN >= 9 || info->aux_usage != ISL_AUX_USAGE_CCS_E);
s.AuxiliarySurfacePitch = pitch_in_tiles - 1;
/* Auxiliary surfaces in ISL have compressed formats but the hardware
* doesn't expect our definition of the compression, it expects qpitch
* in units of samples on the main surface.
*/
s.AuxiliarySurfaceQPitch =
isl_surf_get_array_pitch_sa_rows(info->aux_surf) >> 2;
s.AuxiliarySurfaceBaseAddress = info->aux_address;
s.AuxiliarySurfaceMode = isl_to_gen_aux_mode[info->aux_usage];
#else
assert(info->aux_usage == ISL_AUX_USAGE_MCS ||
info->aux_usage == ISL_AUX_USAGE_CCS_D);
s.MCSBaseAddress = info->aux_address,
s.MCSSurfacePitch = pitch_in_tiles - 1;
s.MCSEnable = true;
#endif
}
#endif
#if GEN_GEN >= 8
/* From the CHV PRM, Volume 2d, page 321 (RENDER_SURFACE_STATE dword 0
* bit 9 "Sampler L2 Bypass Mode Disable" Programming Notes):
*
* This bit must be set for the following surface types: BC2_UNORM
* BC3_UNORM BC5_UNORM BC5_SNORM BC7_UNORM
*/
if (GEN_GEN >= 9 || dev->info->is_cherryview) {
switch (info->view->format) {
case ISL_FORMAT_BC2_UNORM:
case ISL_FORMAT_BC3_UNORM:
case ISL_FORMAT_BC5_UNORM:
case ISL_FORMAT_BC5_SNORM:
case ISL_FORMAT_BC7_UNORM:
s.SamplerL2BypassModeDisable = true;
break;
default:
break;
}
}
#endif
if (info->aux_usage != ISL_AUX_USAGE_NONE) {
#if GEN_GEN >= 9
s.RedClearColor = info->clear_color.u32[0];
s.GreenClearColor = info->clear_color.u32[1];
s.BlueClearColor = info->clear_color.u32[2];
s.AlphaClearColor = info->clear_color.u32[3];
#elif GEN_GEN >= 7
/* Prior to Sky Lake, we only have one bit for the clear color which
* gives us 0 or 1 in whatever the surface's format happens to be.
*/
if (isl_format_has_int_channel(info->view->format)) {
for (unsigned i = 0; i < 4; i++) {
assert(info->clear_color.u32[i] == 0 ||
info->clear_color.u32[i] == 1);
}
s.RedClearColor = info->clear_color.u32[0] != 0;
s.GreenClearColor = info->clear_color.u32[1] != 0;
s.BlueClearColor = info->clear_color.u32[2] != 0;
s.AlphaClearColor = info->clear_color.u32[3] != 0;
} else {
for (unsigned i = 0; i < 4; i++) {
assert(info->clear_color.f32[i] == 0.0f ||
info->clear_color.f32[i] == 1.0f);
}
s.RedClearColor = info->clear_color.f32[0] != 0.0f;
s.GreenClearColor = info->clear_color.f32[1] != 0.0f;
s.BlueClearColor = info->clear_color.f32[2] != 0.0f;
s.AlphaClearColor = info->clear_color.f32[3] != 0.0f;
}
#endif
}
GENX(RENDER_SURFACE_STATE_pack)(NULL, state, &s);
}
void
isl_genX(buffer_fill_state_s)(void *state,
const struct isl_buffer_fill_state_info *restrict info)
{
uint32_t num_elements = info->size / info->stride;
if (GEN_GEN >= 7) {
/* From the IVB PRM, SURFACE_STATE::Height,
*
* For typed buffer and structured buffer surfaces, the number
* of entries in the buffer ranges from 1 to 2^27. For raw buffer
* surfaces, the number of entries in the buffer is the number of bytes
* which can range from 1 to 2^30.
*/
if (info->format == ISL_FORMAT_RAW) {
assert(num_elements <= (1ull << 30));
assert((num_elements & 3) == 0);
} else {
assert(num_elements <= (1ull << 27));
}
} else {
assert(num_elements <= (1ull << 27));
}
struct GENX(RENDER_SURFACE_STATE) s = { 0, };
s.SurfaceType = SURFTYPE_BUFFER;
s.SurfaceFormat = info->format;
#if GEN_GEN >= 6
s.SurfaceVerticalAlignment = isl_to_gen_valign[4];
#if GEN_GEN >= 7
s.SurfaceHorizontalAlignment = isl_to_gen_halign[4];
s.SurfaceArray = false;
#endif
#endif
#if GEN_GEN >= 7
s.Height = ((num_elements - 1) >> 7) & 0x3fff;
s.Width = (num_elements - 1) & 0x7f;
s.Depth = ((num_elements - 1) >> 21) & 0x3ff;
#else
s.Height = ((num_elements - 1) >> 7) & 0x1fff;
s.Width = (num_elements - 1) & 0x7f;
s.Depth = ((num_elements - 1) >> 20) & 0x7f;
#endif
s.SurfacePitch = info->stride - 1;
#if GEN_GEN >= 6
s.NumberofMultisamples = MULTISAMPLECOUNT_1;
#endif
#if (GEN_GEN >= 8)
s.TileMode = LINEAR;
#else
s.TiledSurface = false;
#endif
#if (GEN_GEN >= 8)
s.RenderCacheReadWriteMode = WriteOnlyCache;
#else
s.RenderCacheReadWriteMode = 0;
#endif
s.SurfaceBaseAddress = info->address;
#if GEN_GEN >= 6
s.MOCS = info->mocs;
#endif
#if (GEN_GEN >= 8 || GEN_IS_HASWELL)
s.ShaderChannelSelectRed = SCS_RED;
s.ShaderChannelSelectGreen = SCS_GREEN;
s.ShaderChannelSelectBlue = SCS_BLUE;
s.ShaderChannelSelectAlpha = SCS_ALPHA;
#endif
GENX(RENDER_SURFACE_STATE_pack)(NULL, state, &s);
}
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