#include "compiler/shader_enums.h"
#include "compiler/nir/nir.h"
#include "util/bitscan.h"
+#include "util/disk_cache.h"
-#include "ir3.h"
+#include "ir3_compiler.h"
struct glsl_type;
IR3_DP_CS_COUNT = 8, /* must be aligned to vec4 */
/* vertex shader driver params: */
- IR3_DP_VTXID_BASE = 0,
- IR3_DP_VTXCNT_MAX = 1,
+ IR3_DP_DRAWID = 0,
+ IR3_DP_VTXID_BASE = 1,
IR3_DP_INSTID_BASE = 2,
+ IR3_DP_VTXCNT_MAX = 3,
/* user-clip-plane components, up to 8x vec4's: */
IR3_DP_UCP0_X = 4,
/* .... */
#define IR3_MAX_SO_BUFFERS 4
#define IR3_MAX_SO_STREAMS 4
#define IR3_MAX_SO_OUTPUTS 64
-#define IR3_MAX_CONSTANT_BUFFERS 32
+#define IR3_MAX_UBO_PUSH_RANGES 32
+
+/* mirrors SYSTEM_VALUE_BARYCENTRIC_ but starting from 0 */
+enum ir3_bary {
+ IJ_PERSP_PIXEL,
+ IJ_PERSP_SAMPLE,
+ IJ_PERSP_CENTROID,
+ IJ_PERSP_SIZE,
+ IJ_LINEAR_PIXEL,
+ IJ_LINEAR_CENTROID,
+ IJ_LINEAR_SAMPLE,
+ IJ_COUNT,
+};
+/**
+ * Description of a lowered UBO.
+ */
+struct ir3_ubo_info {
+ uint32_t block; /* Which constant block */
+ uint16_t bindless_base; /* For bindless, which base register is used */
+ bool bindless;
+};
+
+/**
+ * Description of a range of a lowered UBO access.
+ *
+ * Drivers should not assume that there are not multiple disjoint
+ * lowered ranges of a single UBO.
+ */
+struct ir3_ubo_range {
+ struct ir3_ubo_info ubo;
+ uint32_t offset; /* start offset to push in the const register file */
+ uint32_t start, end; /* range of block that's actually used */
+};
+
+struct ir3_ubo_analysis_state {
+ struct ir3_ubo_range range[IR3_MAX_UBO_PUSH_RANGES];
+ uint32_t num_enabled;
+ uint32_t size;
+ uint32_t cmdstream_size; /* for per-gen backend to stash required cmdstream size */
+};
/**
* Describes the layout of shader consts. This includes:
*/
struct ir3_const_state {
unsigned num_ubos;
- unsigned num_reserved_user_consts;
unsigned num_driver_params; /* scalar */
struct {
uint32_t off[IR3_MAX_SHADER_IMAGES];
} image_dims;
- unsigned immediate_idx;
unsigned immediates_count;
unsigned immediates_size;
- struct {
- uint32_t val[4];
- } *immediates;
+ uint32_t *immediates;
+
+ /* State of ubo access lowered to push consts: */
+ struct ir3_ubo_analysis_state ubo_state;
};
/**
/* Configuration key used to identify a shader variant.. different
* shader variants can be used to implement features not supported
* in hw (two sided color), binning-pass vertex shader, etc.
+ *
+ * When adding to this struct, please update ir3_shader_variant()'s debug
+ * output.
*/
struct ir3_shader_key {
union {
unsigned sample_shading : 1;
unsigned msaa : 1;
unsigned color_two_side : 1;
- unsigned half_precision : 1;
/* used when shader needs to handle flat varyings (a4xx)
* for front/back color inputs to frag shader:
*/
unsigned tessellation : 2;
unsigned has_gs : 1;
+
+ /* Whether this variant sticks to the "safe" maximum constlen,
+ * which guarantees that the combined stages will never go over
+ * the limit:
+ */
+ unsigned safe_constlen : 1;
+
+ /* Whether gl_Layer must be forced to 0 because it isn't written. */
+ unsigned layer_zero : 1;
};
uint32_t global;
};
uint16_t vastc_srgb, fastc_srgb;
};
+static inline unsigned
+ir3_tess_mode(unsigned gl_tess_mode)
+{
+ switch (gl_tess_mode) {
+ case GL_ISOLINES:
+ return IR3_TESS_ISOLINES;
+ case GL_TRIANGLES:
+ return IR3_TESS_TRIANGLES;
+ case GL_QUADS:
+ return IR3_TESS_QUADS;
+ default:
+ unreachable("bad tessmode");
+ }
+}
+
static inline bool
-ir3_shader_key_equal(struct ir3_shader_key *a, struct ir3_shader_key *b)
+ir3_shader_key_equal(const struct ir3_shader_key *a, const struct ir3_shader_key *b)
{
/* slow-path if we need to check {v,f}saturate_{s,t,r} */
if (a->has_per_samp || b->has_per_samp)
if (last_key->color_two_side != key->color_two_side)
return true;
- if (last_key->half_precision != key->half_precision)
+ if (last_key->rasterflat != key->rasterflat)
return true;
- if (last_key->rasterflat != key->rasterflat)
+ if (last_key->layer_zero != key->layer_zero)
return true;
if (last_key->ucp_enables != key->ucp_enables)
return true;
+ if (last_key->safe_constlen != key->safe_constlen)
+ return true;
+
return false;
}
if (last_key->ucp_enables != key->ucp_enables)
return true;
- return false;
-}
-
-/* clears shader-key flags which don't apply to the given shader
- * stage
- */
-static inline void
-ir3_normalize_key(struct ir3_shader_key *key, gl_shader_stage type)
-{
- switch (type) {
- case MESA_SHADER_FRAGMENT:
- if (key->has_per_samp) {
- key->vsaturate_s = 0;
- key->vsaturate_t = 0;
- key->vsaturate_r = 0;
- key->vastc_srgb = 0;
- key->vsamples = 0;
- key->has_gs = false; /* FS doesn't care */
- key->tessellation = IR3_TESS_NONE;
- }
- break;
- case MESA_SHADER_VERTEX:
- case MESA_SHADER_GEOMETRY:
- key->color_two_side = false;
- key->half_precision = false;
- key->rasterflat = false;
- if (key->has_per_samp) {
- key->fsaturate_s = 0;
- key->fsaturate_t = 0;
- key->fsaturate_r = 0;
- key->fastc_srgb = 0;
- key->fsamples = 0;
- }
+ if (last_key->safe_constlen != key->safe_constlen)
+ return true;
- /* VS and GS only care about whether or not we're tessellating. */
- key->tessellation = !!key->tessellation;
- break;
- case MESA_SHADER_TESS_CTRL:
- case MESA_SHADER_TESS_EVAL:
- key->color_two_side = false;
- key->half_precision = false;
- key->rasterflat = false;
- if (key->has_per_samp) {
- key->fsaturate_s = 0;
- key->fsaturate_t = 0;
- key->fsaturate_r = 0;
- key->fastc_srgb = 0;
- key->fsamples = 0;
- key->vsaturate_s = 0;
- key->vsaturate_t = 0;
- key->vsaturate_r = 0;
- key->vastc_srgb = 0;
- key->vsamples = 0;
- }
- break;
- default:
- /* TODO */
- break;
- }
+ return false;
}
/**
/* Represents half register in regid */
#define HALF_REG_ID 0x100
+/**
+ * Shader variant which contains the actual hw shader instructions,
+ * and necessary info for shader state setup.
+ */
struct ir3_shader_variant {
struct fd_bo *bo;
struct ir3_shader_variant *nonbinning;
// };
+ struct ir3 *ir; /* freed after assembling machine instructions */
+
+ /* shader variants form a linked list: */
+ struct ir3_shader_variant *next;
+
+ /* replicated here to avoid passing extra ptrs everywhere: */
+ gl_shader_stage type;
+ struct ir3_shader *shader;
+
+ /*
+ * Below here is serialized when written to disk cache:
+ */
+
+ /* The actual binary shader instructions, size given by info.sizedwords: */
+ uint32_t *bin;
+
+ struct ir3_const_state *const_state;
+
+ /*
+ * The following macros are used by the shader disk cache save/
+ * restore paths to serialize/deserialize the variant. Any
+ * pointers that require special handling in store_variant()
+ * and retrieve_variant() should go above here.
+ */
+#define VARIANT_CACHE_START offsetof(struct ir3_shader_variant, info)
+#define VARIANT_CACHE_PTR(v) (((char *)v) + VARIANT_CACHE_START)
+#define VARIANT_CACHE_SIZE (sizeof(struct ir3_shader_variant) - VARIANT_CACHE_START)
+
struct ir3_info info;
- struct ir3 *ir;
/* Levels of nesting of flow control:
*/
* + From the vert shader, we only need the output regid
*/
- bool frag_coord, frag_face, color0_mrt;
+ bool frag_face, color0_mrt;
+ uint8_t fragcoord_compmask;
/* NOTE: for input/outputs, slot is:
* gl_vert_attrib - for VS inputs
uint8_t regid;
bool half : 1;
} outputs[32 + 2]; /* +POSITION +PSIZE */
- bool writes_pos, writes_smask, writes_psize;
+ bool writes_pos, writes_smask, writes_psize, writes_stencilref;
+
+ /* Size in dwords of all outputs for VS, size of entire patch for HS. */
+ uint32_t output_size;
+
+ /* Map from driver_location to byte offset in per-primitive storage */
+ unsigned output_loc[32];
/* attributes (VS) / varyings (FS):
* Note that sysval's should come *after* normal inputs.
bool need_fine_derivatives;
- /* do we have kill, image write, etc (which prevents early-z): */
+ /* do we have image write, etc (which prevents early-z): */
bool no_earlyz;
+ /* do we have kill, which also prevents early-z, but not necessarily
+ * early-lrz (as long as lrz-write is disabled, which must be handled
+ * outside of ir3. Unlike other no_earlyz cases, kill doesn't have
+ * side effects that prevent early-lrz discard.
+ */
+ bool has_kill;
+
bool per_samp;
+ /* Are we using split or merged register file? */
+ bool mergedregs;
+
/* for astc srgb workaround, the number/base of additional
* alpha tex states we need, and index of original tex states
*/
unsigned orig_idx[16];
} astc_srgb;
- /* shader variants form a linked list: */
- struct ir3_shader_variant *next;
-
- /* replicated here to avoid passing extra ptrs everywhere: */
- gl_shader_stage type;
- struct ir3_shader *shader;
-
/* texture sampler pre-dispatches */
uint32_t num_sampler_prefetch;
struct ir3_sampler_prefetch sampler_prefetch[IR3_MAX_SAMPLER_PREFETCH];
}
}
-struct ir3_ubo_range {
- uint32_t offset; /* start offset of this block in const register file */
- uint32_t start, end; /* range of block that's actually used */
-};
-
-struct ir3_ubo_analysis_state {
- struct ir3_ubo_range range[IR3_MAX_CONSTANT_BUFFERS];
- uint32_t enabled;
- uint32_t size;
- uint32_t lower_count;
- uint32_t cmdstream_size; /* for per-gen backend to stash required cmdstream size */
-};
-
+/* Currently we do not do binning for tess. And for GS there is no
+ * cross-stage VS+GS optimization, so the full VS+GS is used in
+ * the binning pass.
+ */
+static inline bool
+ir3_has_binning_vs(const struct ir3_shader_key *key)
+{
+ if (key->tessellation || key->has_gs)
+ return false;
+ return true;
+}
+/**
+ * Represents a shader at the API level, before state-specific variants are
+ * generated.
+ */
struct ir3_shader {
gl_shader_stage type;
uint32_t id;
uint32_t variant_count;
+ /* Set by freedreno after shader_state_create, so we can emit debug info
+ * when recompiling a shader at draw time.
+ */
+ bool initial_variants_done;
+
struct ir3_compiler *compiler;
- struct ir3_ubo_analysis_state ubo_state;
- struct ir3_const_state const_state;
+ unsigned num_reserved_user_consts;
+ bool nir_finalized;
struct nir_shader *nir;
struct ir3_stream_output_info stream_output;
struct ir3_shader_variant *variants;
mtx_t variants_lock;
- uint32_t output_size; /* Size in dwords of all outputs for VS, size of entire patch for HS. */
+ cache_key cache_key; /* shader disk-cache key */
- /* Map from driver_location to byte offset in per-primitive storage */
- unsigned output_loc[32];
+ /* Bitmask of bits of the shader key used by this shader. Used to avoid
+ * recompiles for GL NOS that doesn't actually apply to the shader.
+ */
+ struct ir3_shader_key key_mask;
};
-void * ir3_shader_assemble(struct ir3_shader_variant *v, uint32_t gpu_id);
+/**
+ * In order to use the same cmdstream, in particular constlen setup and const
+ * emit, for both binning and draw pass (a6xx+), the binning pass re-uses it's
+ * corresponding draw pass shaders const_state.
+ */
+static inline struct ir3_const_state *
+ir3_const_state(const struct ir3_shader_variant *v)
+{
+ if (v->binning_pass)
+ return v->nonbinning->const_state;
+ return v->const_state;
+}
+
+/* Given a variant, calculate the maximum constlen it can have.
+ */
+
+static inline unsigned
+ir3_max_const(const struct ir3_shader_variant *v)
+{
+ const struct ir3_compiler *compiler = v->shader->compiler;
+
+ if (v->shader->type == MESA_SHADER_COMPUTE) {
+ return compiler->max_const_compute;
+ } else if (v->key.safe_constlen) {
+ return compiler->max_const_safe;
+ } else if (v->shader->type == MESA_SHADER_FRAGMENT) {
+ return compiler->max_const_frag;
+ } else {
+ return compiler->max_const_geom;
+ }
+}
+
+void * ir3_shader_assemble(struct ir3_shader_variant *v);
struct ir3_shader_variant * ir3_shader_get_variant(struct ir3_shader *shader,
- struct ir3_shader_key *key, bool binning_pass, bool *created);
-struct ir3_shader * ir3_shader_from_nir(struct ir3_compiler *compiler, nir_shader *nir);
+ const struct ir3_shader_key *key, bool binning_pass, bool *created);
+struct ir3_shader * ir3_shader_from_nir(struct ir3_compiler *compiler, nir_shader *nir,
+ unsigned reserved_user_consts, struct ir3_stream_output_info *stream_output);
+uint32_t ir3_trim_constlen(struct ir3_shader_variant **variants,
+ const struct ir3_compiler *compiler);
void ir3_shader_destroy(struct ir3_shader *shader);
void ir3_shader_disasm(struct ir3_shader_variant *so, uint32_t *bin, FILE *out);
uint64_t ir3_shader_outputs(const struct ir3_shader *so);
* Helper/util:
*/
+/* clears shader-key flags which don't apply to the given shader.
+ */
+static inline void
+ir3_key_clear_unused(struct ir3_shader_key *key, struct ir3_shader *shader)
+{
+ uint32_t *key_bits = (uint32_t *)key;
+ uint32_t *key_mask = (uint32_t *)&shader->key_mask;
+ STATIC_ASSERT(sizeof(*key) % 4 == 0);
+ for (int i = 0; i < sizeof(*key) >> 2; i++)
+ key_bits[i] &= key_mask[i];
+}
+
static inline int
ir3_find_output(const struct ir3_shader_variant *so, gl_varying_slot slot)
{
} else if (slot == VARYING_SLOT_COL1) {
slot = VARYING_SLOT_BFC1;
} else {
- return 0;
+ return -1;
}
for (j = 0; j < so->outputs_count; j++)
debug_assert(0);
- return 0;
+ return -1;
}
static inline int
}
struct ir3_shader_linkage {
+ /* Maximum location either consumed by the fragment shader or produced by
+ * the last geometry stage, i.e. the size required for each vertex in the
+ * VPC in DWORD's.
+ */
uint8_t max_loc;
+
+ /* Number of entries in var. */
uint8_t cnt;
+
+ /* Bitset of locations used, including ones which are only used by the FS.
+ */
+ uint32_t varmask[4];
+
+ /* Map from VS output to location. */
struct {
uint8_t regid;
uint8_t compmask;
uint8_t loc;
} var[32];
+
+ /* location for fixed-function gl_PrimitiveID passthrough */
+ uint8_t primid_loc;
+
+ /* location for fixed-function gl_ViewIndex passthrough */
+ uint8_t viewid_loc;
};
static inline void
-ir3_link_add(struct ir3_shader_linkage *l, uint8_t regid, uint8_t compmask, uint8_t loc)
+ir3_link_add(struct ir3_shader_linkage *l, uint8_t regid_, uint8_t compmask, uint8_t loc)
{
- int i = l->cnt++;
-
- debug_assert(i < ARRAY_SIZE(l->var));
+ for (int j = 0; j < util_last_bit(compmask); j++) {
+ uint8_t comploc = loc + j;
+ l->varmask[comploc / 32] |= 1 << (comploc % 32);
+ }
- l->var[i].regid = regid;
- l->var[i].compmask = compmask;
- l->var[i].loc = loc;
l->max_loc = MAX2(l->max_loc, loc + util_last_bit(compmask));
+
+ if (regid_ != regid(63, 0)) {
+ int i = l->cnt++;
+ debug_assert(i < ARRAY_SIZE(l->var));
+
+ l->var[i].regid = regid_;
+ l->var[i].compmask = compmask;
+ l->var[i].loc = loc;
+ }
}
static inline void
ir3_link_shaders(struct ir3_shader_linkage *l,
const struct ir3_shader_variant *vs,
- const struct ir3_shader_variant *fs)
+ const struct ir3_shader_variant *fs,
+ bool pack_vs_out)
{
+ /* On older platforms, varmask isn't programmed at all, and it appears
+ * that the hardware generates a mask of used VPC locations using the VS
+ * output map, and hangs if a FS bary instruction references a location
+ * not in the list. This means that we need to have a dummy entry in the
+ * VS out map for things like gl_PointCoord which aren't written by the
+ * VS. Furthermore we can't use r63.x, so just pick a random register to
+ * use if there is no VS output.
+ */
+ const unsigned default_regid = pack_vs_out ? regid(63, 0) : regid(0, 0);
int j = -1, k;
+ l->primid_loc = 0xff;
+ l->viewid_loc = 0xff;
+
while (l->cnt < ARRAY_SIZE(l->var)) {
j = ir3_next_varying(fs, j);
k = ir3_find_output(vs, fs->inputs[j].slot);
- ir3_link_add(l, vs->outputs[k].regid,
+ if (k < 0 && fs->inputs[j].slot == VARYING_SLOT_PRIMITIVE_ID) {
+ l->primid_loc = fs->inputs[j].inloc;
+ }
+
+ if (fs->inputs[j].slot == VARYING_SLOT_VIEW_INDEX) {
+ assert(k < 0);
+ l->viewid_loc = fs->inputs[j].inloc;
+ }
+
+ ir3_link_add(l, k >= 0 ? vs->outputs[k].regid : default_regid,
fs->inputs[j].compmask, fs->inputs[j].inloc);
}
}
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