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-rw-r--r--src/mesa/drivers/dri/i965/brw_clip.c2
-rw-r--r--src/mesa/drivers/dri/i965/brw_eu.h1
-rw-r--r--src/mesa/drivers/dri/i965/brw_eu_emit.c155
-rw-r--r--src/mesa/drivers/dri/i965/brw_gs.c4
-rw-r--r--src/mesa/drivers/dri/i965/brw_structs.h22
5 files changed, 125 insertions, 59 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_clip.c b/src/mesa/drivers/dri/i965/brw_clip.c
index 0e8591aaa8d..3bec153075a 100644
--- a/src/mesa/drivers/dri/i965/brw_clip.c
+++ b/src/mesa/drivers/dri/i965/brw_clip.c
@@ -62,6 +62,8 @@ static void compile_clip_prog( struct brw_context *brw,
*/
brw_init_compile(&c.func);
+ c.func.single_program_flow = 1;
+
c.key = *key;
diff --git a/src/mesa/drivers/dri/i965/brw_eu.h b/src/mesa/drivers/dri/i965/brw_eu.h
index 1afa0f816b8..d4dbcf38a7a 100644
--- a/src/mesa/drivers/dri/i965/brw_eu.h
+++ b/src/mesa/drivers/dri/i965/brw_eu.h
@@ -104,6 +104,7 @@ struct brw_compile {
struct brw_instruction *current;
GLuint flag_value;
+ GLboolean single_program_flow;
};
diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c
index 6425c91450c..9992b47d8ae 100644
--- a/src/mesa/drivers/dri/i965/brw_eu_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c
@@ -464,7 +464,6 @@ struct brw_instruction *brw_JMPI(struct brw_compile *p,
return insn;
}
-
/* EU takes the value from the flag register and pushes it onto some
* sort of a stack (presumably merging with any flag value already on
* the stack). Within an if block, the flags at the top of the stack
@@ -482,7 +481,16 @@ struct brw_instruction *brw_JMPI(struct brw_compile *p,
*/
struct brw_instruction *brw_IF(struct brw_compile *p, GLuint execute_size)
{
- struct brw_instruction *insn = next_insn(p, BRW_OPCODE_IF);
+ struct brw_instruction *insn;
+
+ if (p->single_program_flow) {
+ assert(execute_size == BRW_EXECUTE_1);
+
+ insn = next_insn(p, BRW_OPCODE_ADD);
+ insn->header.predicate_inverse = 1;
+ } else {
+ insn = next_insn(p, BRW_OPCODE_IF);
+ }
/* Override the defaults for this instruction:
*/
@@ -504,7 +512,13 @@ struct brw_instruction *brw_IF(struct brw_compile *p, GLuint execute_size)
struct brw_instruction *brw_ELSE(struct brw_compile *p,
struct brw_instruction *if_insn)
{
- struct brw_instruction *insn = next_insn(p, BRW_OPCODE_ELSE);
+ struct brw_instruction *insn;
+
+ if (p->single_program_flow) {
+ insn = next_insn(p, BRW_OPCODE_ADD);
+ } else {
+ insn = next_insn(p, BRW_OPCODE_ELSE);
+ }
brw_set_dest(insn, brw_ip_reg());
brw_set_src0(insn, brw_ip_reg());
@@ -516,11 +530,17 @@ struct brw_instruction *brw_ELSE(struct brw_compile *p,
/* Patch the if instruction to point at this instruction.
*/
- assert(if_insn->header.opcode == BRW_OPCODE_IF);
+ if (p->single_program_flow) {
+ assert(if_insn->header.opcode == BRW_OPCODE_ADD);
- if_insn->bits3.if_else.jump_count = insn - if_insn;
- if_insn->bits3.if_else.pop_count = 1;
- if_insn->bits3.if_else.pad0 = 0;
+ if_insn->bits3.ud = (insn - if_insn + 1) * 16;
+ } else {
+ assert(if_insn->header.opcode == BRW_OPCODE_IF);
+
+ if_insn->bits3.if_else.jump_count = insn - if_insn;
+ if_insn->bits3.if_else.pop_count = 1;
+ if_insn->bits3.if_else.pad0 = 0;
+ }
return insn;
}
@@ -528,63 +548,76 @@ struct brw_instruction *brw_ELSE(struct brw_compile *p,
void brw_ENDIF(struct brw_compile *p,
struct brw_instruction *patch_insn)
{
- struct brw_instruction *insn = next_insn(p, BRW_OPCODE_ENDIF);
+ if (p->single_program_flow) {
+ /* In single program flow mode, there's no need to execute an ENDIF,
+ * since we don't need to do any stack operations, and if we're executing
+ * currently, we want to just continue executing.
+ */
+ struct brw_instruction *next = &p->store[p->nr_insn];
- brw_set_dest(insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD));
- brw_set_src0(insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD));
- brw_set_src1(insn, brw_imm_d(0x0));
+ assert(patch_insn->header.opcode == BRW_OPCODE_ADD);
- insn->header.compression_control = BRW_COMPRESSION_NONE;
- insn->header.execution_size = patch_insn->header.execution_size;
- insn->header.mask_control = BRW_MASK_ENABLE;
+ patch_insn->bits3.ud = (next - patch_insn) * 16;
+ } else {
+ struct brw_instruction *insn = next_insn(p, BRW_OPCODE_ENDIF);
- assert(patch_insn->bits3.if_else.jump_count == 0);
-
- /* Patch the if or else instructions to point at this or the next
- * instruction respectively.
- */
- if (patch_insn->header.opcode == BRW_OPCODE_IF) {
- /* Automagically turn it into an IFF:
+ brw_set_dest(insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD));
+ brw_set_src0(insn, retype(brw_vec4_grf(0,0), BRW_REGISTER_TYPE_UD));
+ brw_set_src1(insn, brw_imm_d(0x0));
+
+ insn->header.compression_control = BRW_COMPRESSION_NONE;
+ insn->header.execution_size = patch_insn->header.execution_size;
+ insn->header.mask_control = BRW_MASK_ENABLE;
+
+ assert(patch_insn->bits3.if_else.jump_count == 0);
+
+ /* Patch the if or else instructions to point at this or the next
+ * instruction respectively.
*/
- patch_insn->header.opcode = BRW_OPCODE_IFF;
- patch_insn->bits3.if_else.jump_count = insn - patch_insn + 1;
- patch_insn->bits3.if_else.pop_count = 0;
- patch_insn->bits3.if_else.pad0 = 0;
+ if (patch_insn->header.opcode == BRW_OPCODE_IF) {
+ /* Automagically turn it into an IFF:
+ */
+ patch_insn->header.opcode = BRW_OPCODE_IFF;
+ patch_insn->bits3.if_else.jump_count = insn - patch_insn + 1;
+ patch_insn->bits3.if_else.pop_count = 0;
+ patch_insn->bits3.if_else.pad0 = 0;
+ } else if (patch_insn->header.opcode == BRW_OPCODE_ELSE) {
+ patch_insn->bits3.if_else.jump_count = insn - patch_insn + 1;
+ patch_insn->bits3.if_else.pop_count = 1;
+ patch_insn->bits3.if_else.pad0 = 0;
+ } else {
+ assert(0);
+ }
+ /* Also pop item off the stack in the endif instruction:
+ */
+ insn->bits3.if_else.jump_count = 0;
+ insn->bits3.if_else.pop_count = 1;
+ insn->bits3.if_else.pad0 = 0;
}
- else if (patch_insn->header.opcode == BRW_OPCODE_ELSE) {
- patch_insn->bits3.if_else.jump_count = insn - patch_insn + 1;
- patch_insn->bits3.if_else.pop_count = 1;
- patch_insn->bits3.if_else.pad0 = 0;
- }
- else {
- assert(0);
- }
-
- /* Also pop item off the stack in the endif instruction:
- */
- insn->bits3.if_else.jump_count = 0;
- insn->bits3.if_else.pop_count = 1;
- insn->bits3.if_else.pad0 = 0;
}
/* DO/WHILE loop:
*/
struct brw_instruction *brw_DO(struct brw_compile *p, GLuint execute_size)
{
- struct brw_instruction *insn = next_insn(p, BRW_OPCODE_DO);
+ if (p->single_program_flow) {
+ return &p->store[p->nr_insn];
+ } else {
+ struct brw_instruction *insn = next_insn(p, BRW_OPCODE_DO);
- /* Override the defaults for this instruction:
- */
- brw_set_dest(insn, retype(brw_vec1_grf(0,0), BRW_REGISTER_TYPE_UD));
- brw_set_src0(insn, retype(brw_vec1_grf(0,0), BRW_REGISTER_TYPE_UD));
- brw_set_src1(insn, retype(brw_vec1_grf(0,0), BRW_REGISTER_TYPE_UD));
+ /* Override the defaults for this instruction:
+ */
+ brw_set_dest(insn, retype(brw_vec1_grf(0,0), BRW_REGISTER_TYPE_UD));
+ brw_set_src0(insn, retype(brw_vec1_grf(0,0), BRW_REGISTER_TYPE_UD));
+ brw_set_src1(insn, retype(brw_vec1_grf(0,0), BRW_REGISTER_TYPE_UD));
- insn->header.compression_control = BRW_COMPRESSION_NONE;
- insn->header.execution_size = execute_size;
-/* insn->header.mask_control = BRW_MASK_ENABLE; */
+ insn->header.compression_control = BRW_COMPRESSION_NONE;
+ insn->header.execution_size = execute_size;
+ /* insn->header.mask_control = BRW_MASK_ENABLE; */
- return insn;
+ return insn;
+ }
}
@@ -592,19 +625,31 @@ struct brw_instruction *brw_DO(struct brw_compile *p, GLuint execute_size)
void brw_WHILE(struct brw_compile *p,
struct brw_instruction *do_insn)
{
- struct brw_instruction *insn = next_insn(p, BRW_OPCODE_WHILE);
+ struct brw_instruction *insn;
+
+ if (p->single_program_flow)
+ insn = next_insn(p, BRW_OPCODE_ADD);
+ else
+ insn = next_insn(p, BRW_OPCODE_WHILE);
brw_set_dest(insn, brw_ip_reg());
brw_set_src0(insn, brw_ip_reg());
brw_set_src1(insn, brw_imm_d(0x0));
insn->header.compression_control = BRW_COMPRESSION_NONE;
- insn->header.execution_size = do_insn->header.execution_size;
- assert(do_insn->header.opcode == BRW_OPCODE_DO);
- insn->bits3.if_else.jump_count = do_insn - insn;
- insn->bits3.if_else.pop_count = 0;
- insn->bits3.if_else.pad0 = 0;
+ if (p->single_program_flow) {
+ insn->header.execution_size = BRW_EXECUTE_1;
+
+ insn->bits3.d = (do_insn - insn) * 16;
+ } else {
+ insn->header.execution_size = do_insn->header.execution_size;
+
+ assert(do_insn->header.opcode == BRW_OPCODE_DO);
+ insn->bits3.if_else.jump_count = do_insn - insn;
+ insn->bits3.if_else.pop_count = 0;
+ insn->bits3.if_else.pad0 = 0;
+ }
/* insn->header.mask_control = BRW_MASK_ENABLE; */
diff --git a/src/mesa/drivers/dri/i965/brw_gs.c b/src/mesa/drivers/dri/i965/brw_gs.c
index 7d3f9dd5e3b..9066e42252d 100644
--- a/src/mesa/drivers/dri/i965/brw_gs.c
+++ b/src/mesa/drivers/dri/i965/brw_gs.c
@@ -66,7 +66,9 @@ static void compile_gs_prog( struct brw_context *brw,
/* Begin the compilation:
*/
brw_init_compile(&c.func);
-
+
+ c.func.single_program_flow = 1;
+
/* For some reason the thread is spawned with only 4 channels
* unmasked.
*/
diff --git a/src/mesa/drivers/dri/i965/brw_structs.h b/src/mesa/drivers/dri/i965/brw_structs.h
index 25acdcfe947..10fee944e8d 100644
--- a/src/mesa/drivers/dri/i965/brw_structs.h
+++ b/src/mesa/drivers/dri/i965/brw_structs.h
@@ -519,7 +519,22 @@ struct thread3
struct brw_clip_unit_state
{
struct thread0 thread0;
- struct thread1 thread1;
+ struct
+ {
+ GLuint pad0:7;
+ GLuint sw_exception_enable:1;
+ GLuint pad1:3;
+ GLuint mask_stack_exception_enable:1;
+ GLuint pad2:1;
+ GLuint illegal_op_exception_enable:1;
+ GLuint pad3:2;
+ GLuint floating_point_mode:1;
+ GLuint thread_priority:1;
+ GLuint binding_table_entry_count:8;
+ GLuint pad4:5;
+ GLuint single_program_flow:1;
+ } thread1;
+
struct thread2 thread2;
struct thread3 thread3;
@@ -532,8 +547,8 @@ struct brw_clip_unit_state
GLuint pad1:1;
GLuint urb_entry_allocation_size:5;
GLuint pad2:1;
- GLuint max_threads:6; /* may be less */
- GLuint pad3:1;
+ GLuint max_threads:1; /* may be less */
+ GLuint pad3:6;
} thread4;
struct
@@ -1322,6 +1337,7 @@ struct brw_instruction
GLuint end_of_thread:1;
} generic;
+ GLint d;
GLuint ud;
} bits3;
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 00:48:06 +0000