drm/i915: Don't use enums for hardware engine id
Generally we are using macros for any hardware identifiers as these
may change between Gens. Do the same with hardware engine ids.
v2: move hw engine defs to i915_reg.h (Chris)
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170301202615.118632-1-michal.wajdeczko@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 0d9ae27..243050e 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -77,7 +77,13 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
#define _MASKED_BIT_ENABLE(a) ({ typeof(a) _a = (a); _MASKED_FIELD(_a, _a); })
#define _MASKED_BIT_DISABLE(a) (_MASKED_FIELD((a), 0))
+/* Engine ID */
+#define RCS_HW 0
+#define VCS_HW 1
+#define BCS_HW 2
+#define VECS_HW 3
+#define VCS2_HW 4
/* PCI config space */