drm/i915/tgl: stop using ERROR_GEN6 and DONE_REG

These registers have been removed on gen12.

v2: merge common branch for IS_GEN_RANGE(i915, 6, 11)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190730180407.5993-3-lucas.demarchi@intel.com

drivers/gpu/drm/i915/i915_gpu_error.c

@@ -745,16 +745,15 @@ static void __err_print_to_sgl(struct drm_i915_error_state_buf *m,
 	for (i = 0; i < error->nfence; i++)
 		err_printf(m, "  fence[%d] = %08llx\n", i, error->fence[i]);
 
-	if (INTEL_GEN(m->i915) >= 6) {
+	if (IS_GEN_RANGE(m->i915, 6, 11)) {
 		err_printf(m, "ERROR: 0x%08x\n", error->error);
+		err_printf(m, "DONE_REG: 0x%08x\n", error->done_reg);
+	}
 
 	if (INTEL_GEN(m->i915) >= 8)
 		err_printf(m, "FAULT_TLB_DATA: 0x%08x 0x%08x\n",
 			   error->fault_data1, error->fault_data0);
 
-		err_printf(m, "DONE_REG: 0x%08x\n", error->done_reg);
-	}
-
 	if (IS_GEN(m->i915, 7))
 		err_printf(m, "ERR_INT: 0x%08x\n", error->err_int);
 
@@ -1568,9 +1567,11 @@ static void capture_reg_state(struct i915_gpu_state *error)
 
 	if (INTEL_GEN(i915) >= 6) {
 		error->derrmr = intel_uncore_read(uncore, DERRMR);
+		if (INTEL_GEN(i915) < 12) {
 			error->error = intel_uncore_read(uncore, ERROR_GEN6);
 			error->done_reg = intel_uncore_read(uncore, DONE_REG);
 		}
+	}
 
 	if (INTEL_GEN(i915) >= 5)
 		error->ccid = intel_uncore_read(uncore, CCID(RENDER_RING_BASE));