From: Rob Clark <robclark@freedesktop.org>
Date: Mon, 1 Jun 2015 16:35:19 +0000 (-0400)
Subject: freedreno/ir3: a4xx encodes larger immed offset
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=660d5c1646f5d63f9626b24beabc9cfc318849d4;p=mesa.git

freedreno/ir3: a4xx encodes larger immed offset

Without this, negative branch/jump offsets look like very large positive
offsets.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
---

diff --git a/src/gallium/drivers/freedreno/ir3/disasm-a3xx.c b/src/gallium/drivers/freedreno/ir3/disasm-a3xx.c
index a5136c6bd3d..48ae7c71b9f 100644
--- a/src/gallium/drivers/freedreno/ir3/disasm-a3xx.c
+++ b/src/gallium/drivers/freedreno/ir3/disasm-a3xx.c
@@ -133,16 +133,16 @@ static void print_instr_cat0(instr_t *instr)
 		break;
 	case OPC_BR:
 		printf(" %sp0.%c, #%d", cat0->inv ? "!" : "",
-				component[cat0->comp], cat0->immed);
+				component[cat0->comp], cat0->a3xx.immed);
 		break;
 	case OPC_JUMP:
 	case OPC_CALL:
-		printf(" #%d", cat0->immed);
+		printf(" #%d", cat0->a3xx.immed);
 		break;
 	}
 
-	if ((debug & PRINT_VERBOSE) && (cat0->dummy1|cat0->dummy2|cat0->dummy3|cat0->dummy4))
-		printf("\t{0: %x,%x,%x,%x}", cat0->dummy1, cat0->dummy2, cat0->dummy3, cat0->dummy4);
+	if ((debug & PRINT_VERBOSE) && (cat0->a3xx.dummy1|cat0->dummy2|cat0->dummy3|cat0->dummy4))
+		printf("\t{0: %x,%x,%x,%x}", cat0->a3xx.dummy1, cat0->dummy2, cat0->dummy3, cat0->dummy4);
 }
 
 static void print_instr_cat1(instr_t *instr)
diff --git a/src/gallium/drivers/freedreno/ir3/instr-a3xx.h b/src/gallium/drivers/freedreno/ir3/instr-a3xx.h
index 5ead0c86999..efb07ea479e 100644
--- a/src/gallium/drivers/freedreno/ir3/instr-a3xx.h
+++ b/src/gallium/drivers/freedreno/ir3/instr-a3xx.h
@@ -278,8 +278,16 @@ static inline int reg_special(reg_t reg)
 
 typedef struct PACKED {
 	/* dword0: */
-	int16_t  immed    : 16;
-	uint32_t dummy1   : 16;
+	union PACKED {
+		struct PACKED {
+			int16_t  immed    : 16;
+			uint32_t dummy1   : 16;
+		} a3xx;
+		struct PACKED {
+			int32_t  immed    : 20;
+			uint32_t dummy1   : 12;
+		} a4xx;
+	};
 
 	/* dword1: */
 	uint32_t dummy2   : 8;
diff --git a/src/gallium/drivers/freedreno/ir3/ir3.c b/src/gallium/drivers/freedreno/ir3/ir3.c
index 7515b79b0c9..ba5851c6c82 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3.c
@@ -152,7 +152,11 @@ static int emit_cat0(struct ir3_instruction *instr, void *ptr,
 {
 	instr_cat0_t *cat0 = ptr;
 
-	cat0->immed    = instr->cat0.immed;
+	if (info->gpu_id >= 400) {
+		cat0->a4xx.immed = instr->cat0.immed;
+	} else {
+		cat0->a3xx.immed = instr->cat0.immed;
+	}
 	cat0->repeat   = instr->repeat;
 	cat0->ss       = !!(instr->flags & IR3_INSTR_SS);
 	cat0->inv      = instr->cat0.inv;
@@ -547,6 +551,7 @@ void * ir3_assemble(struct ir3 *shader, struct ir3_info *info,
 	struct ir3_block *block = shader->block;
 	uint32_t *ptr, *dwords;
 
+	info->gpu_id        = gpu_id;
 	info->max_reg       = -1;
 	info->max_half_reg  = -1;
 	info->max_const     = -1;
diff --git a/src/gallium/drivers/freedreno/ir3/ir3.h b/src/gallium/drivers/freedreno/ir3/ir3.h
index 38912aa3bd4..95b866988b8 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3.h
+++ b/src/gallium/drivers/freedreno/ir3/ir3.h
@@ -41,6 +41,7 @@ struct ir3_instruction;
 struct ir3_block;
 
 struct ir3_info {
+	uint32_t gpu_id;
 	uint16_t sizedwords;
 	uint16_t instrs_count;   /* expanded to account for rpt's */
 	/* NOTE: max_reg, etc, does not include registers not touched