disable pwm7

hc

2024-05-10 23fa18eaa71266feff7ba8d83022d9e1cc83c65a

 kernel/arch/powerpc/include/asm/plpar_wrappers.h
..
..
@@ -9,6 +9,7 @@
9
9
 
10
10
 #include <asm/hvcall.h>
11
11
 #include <asm/paca.h>
12
+#include <asm/lppaca.h>
12
13
 #include <asm/page.h>
13
14
 
14
15
 static inline long poll_pending(void)
..
..
@@ -312,7 +313,12 @@
312
313
 
313
314
 static inline long plpar_set_watchpoint0(unsigned long dawr0, unsigned long dawrx0)
314
315
 {
315
-	return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_DAWR, dawr0, dawrx0);
316
+	return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_DAWR0, dawr0, dawrx0);
317
+}
318
+
319
+static inline long plpar_set_watchpoint1(unsigned long dawr1, unsigned long dawrx1)
320
+{
321
+	return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_DAWR1, dawr1, dawrx1);
316
322
 }
317
323
 
318
324
 static inline long plpar_signal_sys_reset(long cpu)
..
..
@@ -334,12 +340,70 @@
334
340
 	return rc;
335
341
 }
336
342
 
343
+/*
344
+ * Wrapper to H_RPT_INVALIDATE hcall that handles return values appropriately
345
+ *
346
+ * - Returns H_SUCCESS on success
347
+ * - For H_BUSY return value, we retry the hcall.
348
+ * - For any other hcall failures, attempt a full flush once before
349
+ *   resorting to BUG().
350
+ *
351
+ * Note: This hcall is expected to fail only very rarely. The correct
352
+ * error recovery of killing the process/guest will be eventually
353
+ * needed.
354
+ */
355
+static inline long pseries_rpt_invalidate(u32 pid, u64 target, u64 type,
356
+					  u64 page_sizes, u64 start, u64 end)
357
+{
358
+	long rc;
359
+	unsigned long all;
360
+
361
+	while (true) {
362
+		rc = plpar_hcall_norets(H_RPT_INVALIDATE, pid, target, type,
363
+					page_sizes, start, end);
364
+		if (rc == H_BUSY) {
365
+			cpu_relax();
366
+			continue;
367
+		} else if (rc == H_SUCCESS)
368
+			return rc;
369
+
370
+		/* Flush request failed, try with a full flush once */
371
+		if (type & H_RPTI_TYPE_NESTED)
372
+			all = H_RPTI_TYPE_NESTED | H_RPTI_TYPE_NESTED_ALL;
373
+		else
374
+			all = H_RPTI_TYPE_ALL;
375
+retry:
376
+		rc = plpar_hcall_norets(H_RPT_INVALIDATE, pid, target,
377
+					all, page_sizes, 0, -1UL);
378
+		if (rc == H_BUSY) {
379
+			cpu_relax();
380
+			goto retry;
381
+		} else if (rc == H_SUCCESS)
382
+			return rc;
383
+
384
+		BUG();
385
+	}
386
+}
387
+
337
388
 #else /* !CONFIG_PPC_PSERIES */
338
389
 
339
390
 static inline long plpar_set_ciabr(unsigned long ciabr)
340
391
 {
341
392
 	return 0;
342
393
 }
394
+
395
+static inline long plpar_pte_read_4(unsigned long flags, unsigned long ptex,
396
+				    unsigned long *ptes)
397
+{
398
+	return 0;
399
+}
400
+
401
+static inline long pseries_rpt_invalidate(u32 pid, u64 target, u64 type,
402
+					  u64 page_sizes, u64 start, u64 end)
403
+{
404
+	return 0;
405
+}
406
+
343
407
 #endif /* CONFIG_PPC_PSERIES */
344
408
 
345
409
 #endif /* _ASM_POWERPC_PLPAR_WRAPPERS_H */