linux-kernel - linux-next: manual merge of the rr tree with the cpufreq-current tree

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Date:	Fri, 12 Jun 2009 13:47:17 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Naga Chumbalkar <nagananda.chumbalkar@...com>,
	Dave Jones <davej@...hat.com>
Subject: linux-next: manual merge of the rr tree with the cpufreq-current
 tree

Hi Rusty,

Today's linux-next merge of the rr tree got a conflict in
arch/x86/kernel/cpu/cpufreq/powernow-k8.c between commits
ec50b17b706931fb5d2854893cfa4b3f96f19276 ("[CPUFREQ] reduce scope of
ACPI_PSS_BIOS_BUG_MSG[]") and 97f1bb65966b4276581988755238a1b326fce475
("[CPUFREQ] powernow-k8: get drv data for correct CPU") from the
cpufreq-current tree and commit fd9641cb9b0cd9296a83242164d53517351b6aaa
("cpumask: avoid playing with cpus_allowed in powernow-k8.c") from the rr
tree.

Just context changes.  I fixed it up (see below) and can carry the fix as
necessary.
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

diff --cc arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 20c7b99,0e1f6c4..0000000
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@@ -1247,14 -1224,41 +1236,40 @@@ static int powernowk8_verify(struct cpu
  	return cpufreq_frequency_table_verify(pol, data->powernow_table);
  }
  
+ struct init_on_cpu {
+ 	struct powernow_k8_data *data;
+ 	int rc;
+ };
+ 
+ static void __cpuinit powernowk8_cpu_init_on_cpu(void *_init_on_cpu)
+ {
+ 	struct init_on_cpu *init_on_cpu = _init_on_cpu;
+ 
+ 	if (pending_bit_stuck()) {
+ 		printk(KERN_ERR PFX "failing init, change pending bit set\n");
+ 		init_on_cpu->rc = -ENODEV;
+ 		return;
+ 	}
+ 
+ 	if (query_current_values_with_pending_wait(init_on_cpu->data)) {
+ 		init_on_cpu->rc = -ENODEV;
+ 		return;
+ 	}
+ 
+ 	if (cpu_family == CPU_OPTERON)
+ 		fidvid_msr_init();
+ 
+ 	init_on_cpu->rc = 0;
+ }
+ 
  /* per CPU init entry point to the driver */
  static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
  {
 +	static const char ACPI_PSS_BIOS_BUG_MSG[] =
 +		KERN_ERR FW_BUG PFX "No compatible ACPI _PSS objects found.\n"
 +		KERN_ERR FW_BUG PFX "Try again with latest BIOS.\n";
  	struct powernow_k8_data *data;
- 	cpumask_t oldmask;
+ 	struct init_on_cpu init_on_cpu;
  	int rc;
  
  	if (!cpu_online(pol->cpu))
@@@ -1383,11 -1372,23 +1383,21 @@@ static int __devexit powernowk8_cpu_exi
  	return 0;
  }
  
+ static void query_values_on_cpu(void *_err)
+ {
+ 	int *err = _err;
+ 	struct powernow_k8_data *data = __get_cpu_var(powernow_data);
+ 
+ 	*err = query_current_values_with_pending_wait(data);
+ }
+ 
  static unsigned int powernowk8_get(unsigned int cpu)
  {
 -	struct powernow_k8_data *data;
 +	struct powernow_k8_data *data = per_cpu(powernow_data, cpu);
- 	cpumask_t oldmask = current->cpus_allowed;
  	unsigned int khz = 0;
+ 	unsigned int first;
+ 	int err;
+ 
 -	first = cpumask_first(cpu_core_mask(cpu));
 -	data = per_cpu(powernow_data, first);
  
  	if (!data)
  		return -EINVAL;
--
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