drm/i915/icl: Add Indirect Context Offset for Gen11

v2: rebased to intel_lr_indirect_ctx_offset
v3: rebase, move define to intel_lrc_reg.h

BSpec: 11740
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Oscar Mateo <oscar.mateo@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302161501.28594-5-mika.kuoppala@linux.intel.comSigned-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>

drivers/gpu/drm/i915/intel_lrc.c

@@ -2272,6 +2272,10 @@ static u32 intel_lr_indirect_ctx_offset(struct intel_engine_cs *engine)
 	default:
 		MISSING_CASE(INTEL_GEN(engine->i915));
 		/* fall through */
+	case 11:
+		indirect_ctx_offset =
+			GEN11_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT;
+		break;
 	case 10:
 		indirect_ctx_offset =
 			GEN10_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT;

drivers/gpu/drm/i915/intel_lrc_reg.h

@@ -63,5 +63,6 @@
 #define GEN8_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT	0x17
 #define GEN9_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT	0x26
 #define GEN10_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT	0x19
+#define GEN11_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT	0x1A
 
 #endif /* _INTEL_LRC_REG_H_ */