misc/cxl/hcalls.c

49 #define _CXL_LOOP_HCALL(call, rc, retbuf, fn, ...)			\
56 			rc = call(fn, retbuf, __VA_ARGS__, token);	\
58 			if (rc != H_BUSY && !H_IS_LONG_BUSY(rc))	\
61 			if (rc == H_BUSY)				\
64 				delay = get_longbusy_msecs(rc);		\
70 				rc = H_BUSY;				\
79 #define _PRINT_MSG(rc, format, ...)					\
81 		if ((rc != H_SUCCESS) && (rc != H_CONTINUE))		\
136 	long rc;
138 	CXL_H_WAIT_UNTIL_DONE(rc, retbuf, H_ATTACH_CA_PROCESS, unit_address, virt_to_phys(element));
139 	_PRINT_MSG(rc, "cxl_h_attach_process(%#.16llx, %#.16lx): %li\n",
140 		unit_address, virt_to_phys(element), rc);
141 	trace_cxl_hcall_attach(unit_address, virt_to_phys(element), retbuf[0], retbuf[1], retbuf[2], rc);
147 	switch (rc) {
165 		WARN(1, "Unexpected return code: %lx", rc);
177 	long rc;
179 	CXL_H_WAIT_UNTIL_DONE(rc, retbuf, H_DETACH_CA_PROCESS, unit_address, process_token);
180 	_PRINT_MSG(rc, "cxl_h_detach_process(%#.16llx, 0x%.8llx): %li\n", unit_address, process_token, rc);
181 	trace_cxl_hcall_detach(unit_address, process_token, rc);
183 	switch (rc) {
195 		WARN(1, "Unexpected return code: %lx", rc);
209 	long rc;
211 	CXL_H9_WAIT_UNTIL_DONE(rc, retbuf, H_CONTROL_CA_FUNCTION, unit_address, op, p1, p2, p3, p4);
212 	_PRINT_MSG(rc, "cxl_h_control_function(%#.16llx, %s(%#llx, %#llx, %#llx, %#llx, R4: %#lx)): %li\n",
213 		unit_address, OP_STR_AFU(op), p1, p2, p3, p4, retbuf[0], rc);
214 	trace_cxl_hcall_control_function(unit_address, OP_STR_AFU(op), p1, p2, p3, p4, retbuf[0], rc);
216 	switch (rc) {
236 		WARN(1, "Unexpected return code: %lx", rc);
400 	long rc;
404 	rc = plpar_hcall9(H_COLLECT_CA_INT_INFO, (unsigned long *) info,
406 	_PRINT_MSG(rc, "cxl_h_collect_int_info(%#.16llx, 0x%llx): %li\n",
407 		unit_address, process_token, rc);
408 	trace_cxl_hcall_collect_int_info(unit_address, process_token, rc);
410 	switch (rc) {
423 		WARN(1, "Unexpected return code: %lx", rc);
442 	long rc;
446 	rc = plpar_hcall(H_CONTROL_CA_FAULTS, retbuf, unit_address,
449 	_PRINT_MSG(rc, "cxl_h_control_faults(%#.16llx, 0x%llx, %#llx, %#llx): %li (%#lx)\n",
451 		rc, retbuf[0]);
453 				control_mask, reset_mask, retbuf[0], rc);
455 	switch (rc) {
468 		WARN(1, "Unexpected return code: %lx", rc);
482 	long rc;
484 	CXL_H9_WAIT_UNTIL_DONE(rc, retbuf, H_CONTROL_CA_FACILITY, unit_address, op, p1, p2, p3, p4);
485 	_PRINT_MSG(rc, "cxl_h_control_facility(%#.16llx, %s(%#llx, %#llx, %#llx, %#llx, R4: %#lx)): %li\n",
486 		unit_address, OP_STR_CONTROL_ADAPTER(op), p1, p2, p3, p4, retbuf[0], rc);
487 	trace_cxl_hcall_control_facility(unit_address, OP_STR_CONTROL_ADAPTER(op), p1, p2, p3, p4, retbuf[0], rc);
489 	switch (rc) {
507 		WARN(1, "Unexpected return code: %lx", rc);
565 	long rc;
572 		rc = plpar_hcall(H_DOWNLOAD_CA_FACILITY, retbuf,
576 		if (rc != H_BUSY && !H_IS_LONG_BUSY(rc))
579 		if (rc != H_BUSY) {
580 			delay = get_longbusy_msecs(rc);
586 				rc = H_BUSY;
592 	_PRINT_MSG(rc, "cxl_h_download_facility(%#.16llx, %s(%#llx, %#llx), %#lx): %li\n",
593 		 unit_address, OP_STR_DOWNLOAD_ADAPTER(op), list_address, num, retbuf[0], rc);
594 	trace_cxl_hcall_download_facility(unit_address, OP_STR_DOWNLOAD_ADAPTER(op), list_address, num, retbuf[0], rc);
596 	switch (rc) {
614 		WARN(1, "Unexpected return code: %lx", rc);