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r600g: rewrite FMASK allocation, fix FMASK texturing with 2 and 4 samples 

This fixes and enables texturing with compressed MSAA colorbuffers
on Evergreen and Cayman. For the first time, multisample textures work
on Cayman.

This requires the libdrm flag RADEON_SURF_FMASK.

v2: require libdrm_radeon 2.4.45

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Marek Olšák 2013-04-11 14:54:40 +02:00
parent 61506257f6
commit 61c995bc47
8 changed files with 43 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
configure.ac
View File

@ -31,7 +31,7 @@ AC_SUBST([OSMESA_VERSION])
dnl Versions for external dependencies
LIBDRM_REQUIRED=2.4.24
LIBDRM_RADEON_REQUIRED=2.4.44
LIBDRM_RADEON_REQUIRED=2.4.45
LIBDRM_INTEL_REQUIRED=2.4.38
LIBDRM_NVVIEUX_REQUIRED=2.4.33
LIBDRM_NOUVEAU_REQUIRED="2.4.33 libdrm >= 2.4.41"

17
src/gallium/drivers/r600/evergreen_state.c
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@ -1101,7 +1101,7 @@ evergreen_create_sampler_view_custom(struct pipe_context *ctx,
uint32_t word4 = 0, yuv_format = 0, pitch = 0;
unsigned char swizzle[4], array_mode = 0, non_disp_tiling = 0;
unsigned height, depth, width;
unsigned macro_aspect, tile_split, bankh, bankw, nbanks;
unsigned macro_aspect, tile_split, bankh, bankw, nbanks, fmask_bankh;
enum pipe_format pipe_format = state->format;
struct radeon_surface_level *surflevel;
@ -1188,6 +1188,7 @@ evergreen_create_sampler_view_custom(struct pipe_context *ctx,
macro_aspect = eg_macro_tile_aspect(macro_aspect);
bankw = eg_bank_wh(bankw);
bankh = eg_bank_wh(bankh);
fmask_bankh = eg_bank_wh(tmp->fmask_bank_height);
/* 128 bit formats require tile type = 1 */
if (rscreen->chip_class == CAYMAN) {
@ -1219,8 +1220,7 @@ evergreen_create_sampler_view_custom(struct pipe_context *ctx,
/* TEX_RESOURCE_WORD3.MIP_ADDRESS */
if (texture->nr_samples > 1 && rscreen->msaa_texture_support == MSAA_TEXTURE_COMPRESSED) {
/* XXX the 2x and 4x cases are broken. */
if (tmp->is_depth || tmp->resource.b.b.nr_samples != 8) {
if (tmp->is_depth) {
/* disable FMASK (0 = disabled) */
view->tex_resource_words[3] = 0;
view->skip_mip_address_reloc = true;
@ -1239,6 +1239,8 @@ evergreen_create_sampler_view_custom(struct pipe_context *ctx,
S_030010_ENDIAN_SWAP(endian));
view->tex_resource_words[5] = S_030014_BASE_ARRAY(state->u.tex.first_layer) |
S_030014_LAST_ARRAY(state->u.tex.last_layer);
view->tex_resource_words[6] = S_030018_TILE_SPLIT(tile_split);
if (texture->nr_samples > 1) {
unsigned log_samples = util_logbase2(texture->nr_samples);
if (rscreen->chip_class == CAYMAN) {
@ -1246,13 +1248,14 @@ evergreen_create_sampler_view_custom(struct pipe_context *ctx,
}
/* LAST_LEVEL holds log2(nr_samples) for multisample textures */
view->tex_resource_words[5] |= S_030014_LAST_LEVEL(log_samples);
view->tex_resource_words[6] |= S_030018_FMASK_BANK_HEIGHT(fmask_bankh);
} else {
view->tex_resource_words[4] |= S_030010_BASE_LEVEL(state->u.tex.first_level);
view->tex_resource_words[5] |= S_030014_LAST_LEVEL(state->u.tex.last_level);
/* aniso max 16 samples */
view->tex_resource_words[6] |= S_030018_MAX_ANISO(4);
}
/* aniso max 16 samples */
view->tex_resource_words[6] = (S_030018_MAX_ANISO(4)) |
(S_030018_TILE_SPLIT(tile_split));
view->tex_resource_words[7] = S_03001C_DATA_FORMAT(format) |
S_03001C_TYPE(V_03001C_SQ_TEX_VTX_VALID_TEXTURE) |
S_03001C_BANK_WIDTH(bankw) |
@ -1576,7 +1579,7 @@ void evergreen_init_color_surface(struct r600_context *rctx,
surf->cb_color_fmask = surf->cb_color_base;
surf->cb_color_cmask = surf->cb_color_base;
}
surf->cb_color_fmask_slice = S_028C88_TILE_MAX(slice);
surf->cb_color_fmask_slice = S_028C88_TILE_MAX(rtex->fmask_slice_tile_max);
surf->cb_color_cmask_slice = S_028C80_TILE_MAX(rtex->cmask_slice_tile_max);
surf->color_initialized = true;

3
src/gallium/drivers/r600/evergreend.h
View File

@ -1140,9 +1140,12 @@
#define G_030014_LAST_ARRAY(x) (((x) >> 17) & 0x1FFF)
#define C_030014_LAST_ARRAY 0xC001FFFF
#define R_030018_SQ_TEX_RESOURCE_WORD6_0 0x030018
/* FMASK_BANK_HEIGHT and MAX_ANISO share the first two bits.
* The former is only used with MSAA textures. */
#define S_030018_MAX_ANISO(x) (((x) & 0x7) << 0)
#define G_030018_MAX_ANISO(x) (((x) >> 0) & 0x7)
#define C_030018_MAX_ANISO 0xFFFFFFF8
#define S_030018_FMASK_BANK_HEIGHT(x) (((x) & 0x3) << 0)
#define S_030018_PERF_MODULATION(x) (((x) & 0x7) << 3)
#define G_030018_PERF_MODULATION(x) (((x) >> 3) & 0x7)
#define C_030018_PERF_MODULATION 0xFFFFFFC7

6
src/gallium/drivers/r600/r600_blit.c
View File

@ -300,11 +300,7 @@ static void r600_blit_decompress_color(struct pipe_context *ctx,
blend_decompress = rctx->custom_blend_decompress;
break;
case MSAA_TEXTURE_COMPRESSED:
/* XXX the 2x and 4x cases are broken. */
if (rtex->resource.b.b.nr_samples == 8)
blend_decompress = rctx->custom_blend_fmask_decompress;
else
blend_decompress = rctx->custom_blend_decompress;
blend_decompress = rctx->custom_blend_fmask_decompress;
break;
case MSAA_TEXTURE_SAMPLE_ZERO:
default:

3
src/gallium/drivers/r600/r600_pipe.c
View File

@ -1271,8 +1271,7 @@ struct pipe_screen *r600_screen_create(struct radeon_winsys *ws)
break;
case CAYMAN:
rscreen->has_msaa = rscreen->info.drm_minor >= 19;
/* We should be able to read compressed MSAA textures, but it doesn't work. */
rscreen->msaa_texture_support = MSAA_TEXTURE_SAMPLE_ZERO;
rscreen->msaa_texture_support = MSAA_TEXTURE_COMPRESSED;
break;
default:
rscreen->has_msaa = FALSE;

5
src/gallium/drivers/r600/r600_resource.h
View File

@ -84,7 +84,9 @@ struct r600_texture {
/* FMASK and CMASK can only be used with MSAA textures for now.
* MSAA textures cannot have mipmaps. */
unsigned fmask_offset, fmask_size, fmask_bank_height;
unsigned cmask_offset, cmask_size, cmask_slice_tile_max;
unsigned fmask_slice_tile_max;
unsigned cmask_offset, cmask_size;
unsigned cmask_slice_tile_max;
struct r600_resource *htile;
/* use htile only for first level */
@ -97,6 +99,7 @@ struct r600_fmask_info {
unsigned size;
unsigned alignment;
unsigned bank_height;
unsigned slice_tile_max;
};
struct r600_cmask_info {

4
src/gallium/drivers/r600/r600_state.c
View File

@ -1404,7 +1404,7 @@ static void r600_init_color_surface(struct r600_context *rctx,
if (rtex->fmask_size) {
color_info |= S_0280A0_TILE_MODE(V_0280A0_FRAG_ENABLE);
surf->cb_color_fmask = rtex->fmask_offset >> 8;
surf->cb_color_mask |= S_028100_FMASK_TILE_MAX(slice);
surf->cb_color_mask |= S_028100_FMASK_TILE_MAX(rtex->fmask_slice_tile_max);
} else { /* cmask only */
color_info |= S_0280A0_TILE_MODE(V_0280A0_CLEAR_ENABLE);
}
@ -1455,7 +1455,7 @@ static void r600_init_color_surface(struct r600_context *rctx,
surf->cb_color_cmask = 0;
surf->cb_color_fmask = 0;
surf->cb_color_mask = S_028100_CMASK_BLOCK_MAX(cmask.slice_tile_max) |
S_028100_FMASK_TILE_MAX(slice);
S_028100_FMASK_TILE_MAX(fmask.slice_tile_max);
}
surf->cb_color_info = color_info;

40
src/gallium/drivers/r600/r600_texture.c
View File

@ -284,50 +284,51 @@ void r600_texture_get_fmask_info(struct r600_screen *rscreen,
unsigned nr_samples,
struct r600_fmask_info *out)
{
/* FMASK is allocated pretty much like an ordinary texture.
* Here we use bpe in the units of bits, not bytes. */
/* FMASK is allocated like an ordinary texture. */
struct radeon_surface fmask = rtex->surface;
memset(out, 0, sizeof(*out));
fmask.bo_alignment = 0;
fmask.bo_size = 0;
fmask.nsamples = 1;
fmask.flags |= RADEON_SURF_FMASK;
switch (nr_samples) {
case 2:
/* This should be 8,1, but we should set nsamples > 1
* for the allocator to treat it as a multisample surface.
* Let's set 4,2 then. */
case 4:
fmask.bpe = 4;
fmask.nsamples = 2;
fmask.bpe = 1;
fmask.bankh = 4;
break;
case 8:
fmask.bpe = 8;
fmask.nsamples = 4;
break;
case 16:
fmask.bpe = 16;
fmask.nsamples = 4;
fmask.bpe = 4;
break;
default:
R600_ERR("Invalid sample count for FMASK allocation.\n");
return;
}
/* R600-R700 errata? Anyway, this fixes colorbuffer corruption. */
/* Overallocate FMASK on R600-R700 to fix colorbuffer corruption.
* This can be fixed by writing a separate FMASK allocator specifically
* for R600-R700 asics. */
if (rscreen->chip_class <= R700) {
fmask.bpe *= 2;
}
if (rscreen->chip_class >= EVERGREEN) {
fmask.bankh = nr_samples <= 4 ? 4 : 1;
}
if (rscreen->ws->surface_init(rscreen->ws, &fmask)) {
R600_ERR("Got error in surface_init while allocating FMASK.\n");
return;
}
assert(fmask.level[0].mode == RADEON_SURF_MODE_2D);
out->slice_tile_max = (fmask.level[0].nblk_x * fmask.level[0].nblk_y) / 64;
if (out->slice_tile_max)
out->slice_tile_max -= 1;
out->bank_height = fmask.bankh;
out->alignment = MAX2(256, fmask.bo_alignment);
out->size = (fmask.bo_size + 7) / 8;
out->size = fmask.bo_size;
}
static void r600_texture_allocate_fmask(struct r600_screen *rscreen,
@ -339,6 +340,7 @@ static void r600_texture_allocate_fmask(struct r600_screen *rscreen,
rtex->resource.b.b.nr_samples, &fmask);
rtex->fmask_bank_height = fmask.bank_height;
rtex->fmask_slice_tile_max = fmask.slice_tile_max;
rtex->fmask_offset = align(rtex->size, fmask.alignment);
rtex->fmask_size = fmask.size;
rtex->size = rtex->fmask_offset + rtex->fmask_size;