修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/powerpc/platforms/pseries/lparcfg.c
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@@ -205,7 +205,7 @@
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 	           ppp_data.active_system_procs);
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 	/* pool related entries are appropriate for shared configs */
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-	if (lppaca_shared_proc(get_lppaca())) {
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+	if (lppaca_shared_proc()) {
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 		unsigned long pool_idle_time, pool_procs;
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 		seq_printf(m, "pool=%d\n", ppp_data.pool_num);
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@@ -322,6 +322,7 @@
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  */
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 static void parse_system_parameter_string(struct seq_file *m)
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 {
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+	const s32 token = rtas_token("ibm,get-system-parameter");
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 	int call_status;
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 	unsigned char *local_buffer = kmalloc(SPLPAR_MAXLENGTH, GFP_KERNEL);
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@@ -331,16 +332,15 @@
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 		return;
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 	}
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-	spin_lock(&rtas_data_buf_lock);
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-	memset(rtas_data_buf, 0, SPLPAR_MAXLENGTH);
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-	call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
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-				NULL,
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-				SPLPAR_CHARACTERISTICS_TOKEN,
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-				__pa(rtas_data_buf),
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-				RTAS_DATA_BUF_SIZE);
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-	memcpy(local_buffer, rtas_data_buf, SPLPAR_MAXLENGTH);
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-	local_buffer[SPLPAR_MAXLENGTH - 1] = '\0';
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-	spin_unlock(&rtas_data_buf_lock);
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+	do {
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+		spin_lock(&rtas_data_buf_lock);
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+		memset(rtas_data_buf, 0, SPLPAR_MAXLENGTH);
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+		call_status = rtas_call(token, 3, 1, NULL, SPLPAR_CHARACTERISTICS_TOKEN,
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+					__pa(rtas_data_buf), RTAS_DATA_BUF_SIZE);
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+		memcpy(local_buffer, rtas_data_buf, SPLPAR_MAXLENGTH);
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+		local_buffer[SPLPAR_MAXLENGTH - 1] = '\0';
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+		spin_unlock(&rtas_data_buf_lock);
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+	} while (rtas_busy_delay(call_status));
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 	if (call_status != 0) {
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 		printk(KERN_INFO
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@@ -529,7 +529,7 @@
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 		   partition_potential_processors);
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 	seq_printf(m, "shared_processor_mode=%d\n",
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-		   lppaca_shared_proc(get_lppaca()));
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+		   lppaca_shared_proc());
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 #ifdef CONFIG_PPC_BOOK3S_64
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 	seq_printf(m, "slb_size=%d\n", mmu_slb_size);