native.c (79e24da00b1137031245f3341828e4215b1b5b59) native.c (8633186209e35dfafc27c3d0f0d5e702ab47265f)
1/*
2 * Copyright 2014 IBM Corp.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */

--- 251 unchanged lines hidden (view full) ---

260 }
261 if (!cxl_adapter_link_ok(adapter))
262 return -EIO;
263 cpu_relax();
264 }
265 return 0;
266}
267
1/*
2 * Copyright 2014 IBM Corp.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */

--- 251 unchanged lines hidden (view full) ---

260 }
261 if (!cxl_adapter_link_ok(adapter))
262 return -EIO;
263 cpu_relax();
264 }
265 return 0;
266}
267
268int cxl_afu_slbia(struct cxl_afu *afu)
269{
270 unsigned long timeout = jiffies + (HZ * CXL_TIMEOUT);
271
272 pr_devel("cxl_afu_slbia issuing SLBIA command\n");
273 cxl_p2n_write(afu, CXL_SLBIA_An, CXL_TLB_SLB_IQ_ALL);
274 while (cxl_p2n_read(afu, CXL_SLBIA_An) & CXL_TLB_SLB_P) {
275 if (time_after_eq(jiffies, timeout)) {
276 dev_warn(&afu->dev, "WARNING: CXL AFU SLBIA timed out!\n");
277 return -EBUSY;
278 }
279 /* If the adapter has gone down, we can assume that we
280 * will PERST it and that will invalidate everything.
281 */
282 if (!cxl_adapter_link_ok(afu->adapter))
283 return -EIO;
284 cpu_relax();
285 }
286 return 0;
287}
288
289static int cxl_write_sstp(struct cxl_afu *afu, u64 sstp0, u64 sstp1)
290{
291 int rc;
292
293 /* 1. Disable SSTP by writing 0 to SSTP1[V] */
294 cxl_p2n_write(afu, CXL_SSTP1_An, 0);
295
296 /* 2. Invalidate all SLB entries */

--- 490 unchanged lines hidden --- 		268static int cxl_write_sstp(struct cxl_afu *afu, u64 sstp0, u64 sstp1)
269{
270 int rc;
271
272 /* 1. Disable SSTP by writing 0 to SSTP1[V] */
273 cxl_p2n_write(afu, CXL_SSTP1_An, 0);
274
275 /* 2. Invalidate all SLB entries */

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