x86, apic: refactor ->cpu_mask_to_apicid*()

- spread out the namespace on a per driver basis

 - clean up the functions

 - get rid of macros

Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/include/asm/bigsmp/apic.h

@@ -105,28 +105,25 @@ static inline int bigsmp_check_phys_apicid_present(int boot_cpu_physical_apicid)
 }
 
 /* As we are using single CPU as destination, pick only one CPU here */
-static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
+static inline unsigned int bigsmp_cpu_mask_to_apicid(const cpumask_t *cpumask)
 {
-	int cpu;
-	int apicid;	
-
-	cpu = first_cpu(*cpumask);
-	apicid = bigsmp_cpu_to_logical_apicid(cpu);
-	return apicid;
+	return bigsmp_cpu_to_logical_apicid(first_cpu(*cpumask));
 }
 
-static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-						  const struct cpumask *andmask)
+static inline unsigned int
+bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+			      const struct cpumask *andmask)
 {
 	int cpu;
 
 	/*
 	 * We're using fixed IRQ delivery, can only return one phys APIC ID.
 	 * May as well be the first.
 	 */
-	for_each_cpu_and(cpu, cpumask, andmask)
+	for_each_cpu_and(cpu, cpumask, andmask) {
 		if (cpumask_test_cpu(cpu, cpu_online_mask))
 			break;
+	}
 	if (cpu < nr_cpu_ids)
 		return bigsmp_cpu_to_logical_apicid(cpu);
 

arch/x86/include/asm/es7000/apic.h

@@ -137,12 +137,12 @@ static inline int es7000_check_phys_apicid_present(int cpu_physical_apicid)
 }
 
 static inline unsigned int
-cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
+es7000_cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
 {
-	int num_bits_set;
 	int cpus_found = 0;
-	int cpu;
+	int num_bits_set;
 	int apicid;
+	int cpu;
 
 	num_bits_set = cpumask_weight(cpumask);
 	/* Return id to all */
@@ -154,12 +154,15 @@ cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
 	 */
 	cpu = cpumask_first(cpumask);
 	apicid = es7000_cpu_to_logical_apicid(cpu);
+
 	while (cpus_found < num_bits_set) {
 		if (cpumask_test_cpu(cpu, cpumask)) {
 			int new_apicid = es7000_cpu_to_logical_apicid(cpu);
+
 			if (apicid_cluster(apicid) !=
-					apicid_cluster(new_apicid)){
+					apicid_cluster(new_apicid)) {
 				printk ("%s: Not a valid mask!\n", __func__);
+
 				return 0xFF;
 			}
 			apicid = new_apicid;
@@ -170,12 +173,12 @@ cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
 	return apicid;
 }
 
-static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
+static inline unsigned int es7000_cpu_mask_to_apicid(const cpumask_t *cpumask)
 {
-	int num_bits_set;
 	int cpus_found = 0;
-	int cpu;
+	int num_bits_set;
 	int apicid;
+	int cpu;
 
 	num_bits_set = cpus_weight(*cpumask);
 	/* Return id to all */
@@ -190,9 +193,11 @@ static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
 	while (cpus_found < num_bits_set) {
 		if (cpu_isset(cpu, *cpumask)) {
 			int new_apicid = es7000_cpu_to_logical_apicid(cpu);
+
 			if (apicid_cluster(apicid) !=
-					apicid_cluster(new_apicid)){
+					apicid_cluster(new_apicid)) {
 				printk ("%s: Not a valid mask!\n", __func__);
+
 				return es7000_cpu_to_logical_apicid(0);
 			}
 			apicid = new_apicid;
@@ -204,8 +209,9 @@ static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
 }
 
 
-static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *inmask,
-						  const struct cpumask *andmask)
+static inline unsigned int
+es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask,
+			      const struct cpumask *andmask)
 {
 	int apicid = es7000_cpu_to_logical_apicid(0);
 	cpumask_var_t cpumask;
@@ -215,9 +221,10 @@ static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *inmask,
 
 	cpumask_and(cpumask, inmask, andmask);
 	cpumask_and(cpumask, cpumask, cpu_online_mask);
-	apicid = cpu_mask_to_apicid(cpumask);
+	apicid = es7000_cpu_mask_to_apicid(cpumask);
 
 	free_cpumask_var(cpumask);
+
 	return apicid;
 }
 

arch/x86/include/asm/mach-default/mach_apic.h

@@ -19,8 +19,6 @@ static inline const struct cpumask *default_target_cpus(void)
 
 #ifdef CONFIG_X86_64
 #include <asm/genapic.h>
-#define cpu_mask_to_apicid (apic->cpu_mask_to_apicid)
-#define cpu_mask_to_apicid_and (apic->cpu_mask_to_apicid_and)
 #define read_apic_id()  (apic->get_apic_id(apic_read(APIC_ID)))
 #define send_IPI_self (apic->send_IPI_self)
 #define wakeup_secondary_cpu (apic->wakeup_cpu)
@@ -49,13 +47,15 @@ static inline int default_apic_id_registered(void)
 	return physid_isset(read_apic_id(), phys_cpu_present_map);
 }
 
-static inline unsigned int cpu_mask_to_apicid(const struct cpumask *cpumask)
+static inline unsigned int
+default_cpu_mask_to_apicid(const struct cpumask *cpumask)
 {
 	return cpumask_bits(cpumask)[0];
 }
 
-static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-						  const struct cpumask *andmask)
+static inline unsigned int
+default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+			       const struct cpumask *andmask)
 {
 	unsigned long mask1 = cpumask_bits(cpumask)[0];
 	unsigned long mask2 = cpumask_bits(andmask)[0];

arch/x86/include/asm/mach-generic/mach_apic.h

@@ -3,8 +3,6 @@
 
 #include <asm/genapic.h>
 
-#define cpu_mask_to_apicid (apic->cpu_mask_to_apicid)
-#define cpu_mask_to_apicid_and (apic->cpu_mask_to_apicid_and)
 #define wakeup_secondary_cpu (apic->wakeup_cpu)
 
 extern void generic_bigsmp_probe(void);

arch/x86/include/asm/numaq/apic.h

@@ -101,15 +101,16 @@ static inline int numaq_check_phys_apicid_present(int boot_cpu_physical_apicid)
  * We use physical apicids here, not logical, so just return the default
  * physical broadcast to stop people from breaking us
  */
-static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
+static inline unsigned int numaq_cpu_mask_to_apicid(const cpumask_t *cpumask)
 {
-	return (int) 0xF;
+	return 0x0F;
 }
 
-static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-						  const struct cpumask *andmask)
+static inline unsigned int
+numaq_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+			     const struct cpumask *andmask)
 {
-	return (int) 0xF;
+	return 0x0F;
 }
 
 /* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */

arch/x86/include/asm/summit/apic.h

@@ -125,29 +125,32 @@ static inline int summit_check_phys_apicid_present(int boot_cpu_physical_apicid)
 	return 1;
 }
 
-static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
+static inline unsigned int summit_cpu_mask_to_apicid(const cpumask_t *cpumask)
 {
-	int num_bits_set;
 	int cpus_found = 0;
-	int cpu;
+	int num_bits_set;
 	int apicid;
+	int cpu;
 
 	num_bits_set = cpus_weight(*cpumask);
 	/* Return id to all */
 	if (num_bits_set >= nr_cpu_ids)
-		return (int) 0xFF;
+		return 0xFF;
 	/*
 	 * The cpus in the mask must all be on the apic cluster.  If are not
 	 * on the same apicid cluster return default value of target_cpus():
 	 */
 	cpu = first_cpu(*cpumask);
 	apicid = summit_cpu_to_logical_apicid(cpu);
+
 	while (cpus_found < num_bits_set) {
 		if (cpu_isset(cpu, *cpumask)) {
 			int new_apicid = summit_cpu_to_logical_apicid(cpu);
+
 			if (apicid_cluster(apicid) !=
-					apicid_cluster(new_apicid)){
+					apicid_cluster(new_apicid)) {
 				printk ("%s: Not a valid mask!\n", __func__);
+
 				return 0xFF;
 			}
 			apicid = apicid | new_apicid;
@@ -158,8 +161,9 @@ static inline unsigned int cpu_mask_to_apicid(const cpumask_t *cpumask)
 	return apicid;
 }
 
-static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *inmask,
-						  const struct cpumask *andmask)
+static inline unsigned int
+summit_cpu_mask_to_apicid_and(const struct cpumask *inmask,
+			      const struct cpumask *andmask)
 {
 	int apicid = summit_cpu_to_logical_apicid(0);
 	cpumask_var_t cpumask;
@@ -169,9 +173,10 @@ static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *inmask,
 
 	cpumask_and(cpumask, inmask, andmask);
 	cpumask_and(cpumask, cpumask, cpu_online_mask);
-	apicid = cpu_mask_to_apicid(cpumask);
+	apicid = summit_cpu_mask_to_apicid(cpumask);
 
 	free_cpumask_var(cpumask);
+
 	return apicid;
 }
 

arch/x86/kernel/genapic_flat_64.c

@@ -309,11 +309,13 @@ physflat_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
 	 * We're using fixed IRQ delivery, can only return one phys APIC ID.
 	 * May as well be the first.
 	 */
-	for_each_cpu_and(cpu, cpumask, andmask)
+	for_each_cpu_and(cpu, cpumask, andmask) {
 		if (cpumask_test_cpu(cpu, cpu_online_mask))
 			break;
+	}
 	if (cpu < nr_cpu_ids)
 		return per_cpu(x86_cpu_to_apicid, cpu);
+
 	return BAD_APICID;
 }
 

arch/x86/kernel/genx2apic_cluster.c

@@ -111,33 +111,36 @@ static int x2apic_apic_id_registered(void)
 
 static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
 {
-	int cpu;
-
 	/*
 	 * We're using fixed IRQ delivery, can only return one logical APIC ID.
 	 * May as well be the first.
 	 */
-	cpu = cpumask_first(cpumask);
+	int cpu = cpumask_first(cpumask);
+
 	if ((unsigned)cpu < nr_cpu_ids)
 		return per_cpu(x86_cpu_to_logical_apicid, cpu);
 	else
 		return BAD_APICID;
 }
 
-static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-						  const struct cpumask *andmask)
+static unsigned int
+x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+			      const struct cpumask *andmask)
 {
 	int cpu;
 
 	/*
 	 * We're using fixed IRQ delivery, can only return one logical APIC ID.
 	 * May as well be the first.
 	 */
-	for_each_cpu_and(cpu, cpumask, andmask)
+	for_each_cpu_and(cpu, cpumask, andmask) {
 		if (cpumask_test_cpu(cpu, cpu_online_mask))
 			break;
+	}
+
 	if (cpu < nr_cpu_ids)
 		return per_cpu(x86_cpu_to_logical_apicid, cpu);
+
 	return BAD_APICID;
 }
 

arch/x86/kernel/genx2apic_phys.c

@@ -110,33 +110,36 @@ static int x2apic_apic_id_registered(void)
 
 static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
 {
-	int cpu;
-
 	/*
 	 * We're using fixed IRQ delivery, can only return one phys APIC ID.
 	 * May as well be the first.
 	 */
-	cpu = cpumask_first(cpumask);
+	int cpu = cpumask_first(cpumask);
+
 	if ((unsigned)cpu < nr_cpu_ids)
 		return per_cpu(x86_cpu_to_apicid, cpu);
 	else
 		return BAD_APICID;
 }
 
-static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-						  const struct cpumask *andmask)
+static unsigned int
+x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+			      const struct cpumask *andmask)
 {
 	int cpu;
 
 	/*
 	 * We're using fixed IRQ delivery, can only return one phys APIC ID.
 	 * May as well be the first.
 	 */
-	for_each_cpu_and(cpu, cpumask, andmask)
+	for_each_cpu_and(cpu, cpumask, andmask) {
 		if (cpumask_test_cpu(cpu, cpu_online_mask))
 			break;
+	}
+
 	if (cpu < nr_cpu_ids)
 		return per_cpu(x86_cpu_to_apicid, cpu);
+
 	return BAD_APICID;
 }
 

arch/x86/kernel/genx2apic_uv_x.c

@@ -171,33 +171,35 @@ static void uv_init_apic_ldr(void)
 
 static unsigned int uv_cpu_mask_to_apicid(const struct cpumask *cpumask)
 {
-	int cpu;
-
 	/*
 	 * We're using fixed IRQ delivery, can only return one phys APIC ID.
 	 * May as well be the first.
 	 */
-	cpu = cpumask_first(cpumask);
+	int cpu = cpumask_first(cpumask);
+
 	if ((unsigned)cpu < nr_cpu_ids)
 		return per_cpu(x86_cpu_to_apicid, cpu);
 	else
 		return BAD_APICID;
 }
 
-static unsigned int uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
-					      const struct cpumask *andmask)
+static unsigned int
+uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
+			  const struct cpumask *andmask)
 {
 	int cpu;
 
 	/*
 	 * We're using fixed IRQ delivery, can only return one phys APIC ID.
 	 * May as well be the first.
 	 */
-	for_each_cpu_and(cpu, cpumask, andmask)
+	for_each_cpu_and(cpu, cpumask, andmask) {
 		if (cpumask_test_cpu(cpu, cpu_online_mask))
 			break;
+	}
 	if (cpu < nr_cpu_ids)
 		return per_cpu(x86_cpu_to_apicid, cpu);
+
 	return BAD_APICID;
 }