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firmware: qcom: scm: Clean cold boot entry to export only the API

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We dont need to export the SCM specific cold boot flags to the platform
code. Export only a function to set the cold boot address.

Signed-off-by: Lina Iyer <[email protected]>
Signed-off-by: Kumar Gala <[email protected]>
This commit is contained in:
Lina Iyer 2015-03-02 16:30:28 -07:00 • committed by Kumar Gala
commit a353e4a06f
3 changed files with 43 additions and 24 deletions
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41
drivers/firmware/qcom_scm.c
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@ -34,6 +34,11 @@
#define QCOM_SCM_ERROR -1
#define QCOM_SCM_INTERRUPTED 1
#define QCOM_SCM_FLAG_COLDBOOT_CPU0 0x00
#define QCOM_SCM_FLAG_COLDBOOT_CPU1 0x01
#define QCOM_SCM_FLAG_COLDBOOT_CPU2 0x08
#define QCOM_SCM_FLAG_COLDBOOT_CPU3 0x20
static DEFINE_MUTEX(qcom_scm_lock);
/**
@ -329,7 +334,7 @@ EXPORT_SYMBOL(qcom_scm_get_version);
/*
* Set the cold/warm boot address for one of the CPU cores.
*/
int qcom_scm_set_boot_addr(u32 addr, int flags)
static int qcom_scm_set_boot_addr(u32 addr, int flags)
{
struct {
__le32 flags;
@ -341,4 +346,36 @@ int qcom_scm_set_boot_addr(u32 addr, int flags)
return qcom_scm_call(QCOM_SCM_SVC_BOOT, QCOM_SCM_BOOT_ADDR,
&cmd, sizeof(cmd), NULL, 0);
}
EXPORT_SYMBOL(qcom_scm_set_boot_addr);
/**
* qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus
* @entry: Entry point function for the cpus
* @cpus: The cpumask of cpus that will use the entry point
*
* Set the cold boot address of the cpus. Any cpu outside the supported
* range would be removed from the cpu present mask.
*/
int qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
{
int flags = 0;
int cpu;
int scm_cb_flags[] = {
QCOM_SCM_FLAG_COLDBOOT_CPU0,
QCOM_SCM_FLAG_COLDBOOT_CPU1,
QCOM_SCM_FLAG_COLDBOOT_CPU2,
QCOM_SCM_FLAG_COLDBOOT_CPU3,
};
if (!cpus || (cpus && cpumask_empty(cpus)))
return -EINVAL;
for_each_cpu(cpu, cpus) {
if (cpu < ARRAY_SIZE(scm_cb_flags))
flags |= scm_cb_flags[cpu];
else
set_cpu_present(cpu, false);
}
return qcom_scm_set_boot_addr(virt_to_phys(entry), flags);
}
EXPORT_SYMBOL(qcom_scm_set_cold_boot_addr);