drm/i915/gt: use engine instance directly for offset

To make it uniform across copy and clear, use the engine offset directly
to calculate the offset in the cmd forming for emit_clear.
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220405150840.29351-2-ramalingam.c@intel.com

drivers/gpu/drm/i915/gt/intel_migrate.c

@@ -613,15 +613,13 @@ intel_context_migrate_copy(struct intel_context *ce,
 	return err;
 }
 
-static int emit_clear(struct i915_request *rq, u64 offset, int size, u32 value)
+static int emit_clear(struct i915_request *rq, u32 offset, int size, u32 value)
 {
 	const int ver = GRAPHICS_VER(rq->engine->i915);
 	u32 *cs;
 
 	GEM_BUG_ON(size >> PAGE_SHIFT > S16_MAX);
 
-	offset += (u64)rq->engine->instance << 32;
-
 	cs = intel_ring_begin(rq, ver >= 8 ? 8 : 6);
 	if (IS_ERR(cs))
 		return PTR_ERR(cs);
@@ -631,17 +629,16 @@ static int emit_clear(struct i915_request *rq, u64 offset, int size, u32 value)
 		*cs++ = BLT_DEPTH_32 | BLT_ROP_COLOR_COPY | PAGE_SIZE;
 		*cs++ = 0;
 		*cs++ = size >> PAGE_SHIFT << 16 | PAGE_SIZE / 4;
-		*cs++ = lower_32_bits(offset);
-		*cs++ = upper_32_bits(offset);
+		*cs++ = offset;
+		*cs++ = rq->engine->instance;
 		*cs++ = value;
 		*cs++ = MI_NOOP;
 	} else {
-		GEM_BUG_ON(upper_32_bits(offset));
 		*cs++ = XY_COLOR_BLT_CMD | BLT_WRITE_RGBA | (6 - 2);
 		*cs++ = BLT_DEPTH_32 | BLT_ROP_COLOR_COPY | PAGE_SIZE;
 		*cs++ = 0;
 		*cs++ = size >> PAGE_SHIFT << 16 | PAGE_SIZE / 4;
-		*cs++ = lower_32_bits(offset);
+		*cs++ = offset;
 		*cs++ = value;
 	}