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authorPrakash, Prashanth <pprakash@codeaurora.org>2016-08-16 14:39:41 -0600
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-08-31 01:02:33 +0200
commitbe8b88d7d9877114172b32817d8eb3e85d3d8f99 (patch)
tree46cfd3c473ffcf900680952a437d137355eef6a2 /include/acpi
parent80b8286aeec056d21bffed2d1ece3904516e9c91 (diff)
downloadlinux-be8b88d7d9877114172b32817d8eb3e85d3d8f99.tar.bz2
ACPI / CPPC: set a non-zero value for transition_latency
Compute the expected transition latency for frequency transitions using the values from the PCCT tables when the desired perf register is in PCC. Signed-off-by: Prashanth Prakash <pprakash@codeaurora.org> Reviewed-by: Alexey Klimov <alexey.klimov@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/cppc_acpi.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/acpi/cppc_acpi.h b/include/acpi/cppc_acpi.h
index d2101bcea013..42cbeb93ea32 100644
--- a/include/acpi/cppc_acpi.h
+++ b/include/acpi/cppc_acpi.h
@@ -131,5 +131,6 @@ extern int cppc_get_perf_ctrs(int cpu, struct cppc_perf_fb_ctrs *perf_fb_ctrs);
extern int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls);
extern int cppc_get_perf_caps(int cpu, struct cppc_perf_caps *caps);
extern int acpi_get_psd_map(struct cpudata **);
+extern unsigned int cppc_get_transition_latency(int cpu);
#endif /* _CPPC_ACPI_H*/