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authorStefan Reinauer <reinauer@chromium.org>2012-04-03 16:07:56 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2012-04-06 02:13:12 +0200
commit6293d307684215a040bef54f1fb8479bfec0755c (patch)
tree34f740a1fe90882bbf849ddd0c99a95509d2c33f
parent61f4a744c0df43dbce816195b0e8ae12fc7b2479 (diff)
downloadcoreboot-6293d307684215a040bef54f1fb8479bfec0755c.tar.xz
Factor out function to find driver for a CPU
This function can be used outside of the normal CPU setup Change-Id: I810c63b8aff868a6f69d5b992bea1cfae5a5996b Signed-off-by: Duncan Laurie <dlaurie@google.com> Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/868 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
-rw-r--r--src/arch/x86/include/arch/cpu.h3
-rw-r--r--src/arch/x86/lib/cpu.c18
2 files changed, 14 insertions, 7 deletions
diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h
index 891e62bbcb..604abde861 100644
--- a/src/arch/x86/include/arch/cpu.h
+++ b/src/arch/x86/include/arch/cpu.h
@@ -154,6 +154,9 @@ struct cpu_driver {
struct cpu_device_id *id_table;
};
+struct device;
+struct cpu_driver *find_cpu_driver(struct device *cpu);
+
struct cpu_info {
device_t cpu;
unsigned long index;
diff --git a/src/arch/x86/lib/cpu.c b/src/arch/x86/lib/cpu.c
index fac523f902..98ede068ef 100644
--- a/src/arch/x86/lib/cpu.c
+++ b/src/arch/x86/lib/cpu.c
@@ -211,23 +211,27 @@ static void identify_cpu(struct device *cpu)
}
}
-static void set_cpu_ops(struct device *cpu)
+struct cpu_driver *find_cpu_driver(struct device *cpu)
{
struct cpu_driver *driver;
- cpu->ops = 0;
for (driver = cpu_drivers; driver < ecpu_drivers; driver++) {
struct cpu_device_id *id;
- for(id = driver->id_table; id->vendor != X86_VENDOR_INVALID; id++) {
+ for (id = driver->id_table;
+ id->vendor != X86_VENDOR_INVALID; id++) {
if ((cpu->vendor == id->vendor) &&
(cpu->device == id->device))
{
- goto found;
+ return driver;
}
}
}
- return;
-found:
- cpu->ops = driver->ops;
+ return NULL;
+}
+
+static void set_cpu_ops(struct device *cpu)
+{
+ struct cpu_driver *driver = find_cpu_driver(cpu);
+ cpu->ops = driver ? driver->ops : NULL;
}
void cpu_initialize(void)