diff options
| author | Sivaram Nair <sivaramn@nvidia.com> | 2013-03-05 01:57:52 +0200 |
|---|---|---|
| committer | Mandar Padmawar <mpadmawar@nvidia.com> | 2013-03-06 03:02:23 -0800 |
| commit | bb36790494c382ec26250f351c8cea76613f0f02 (patch) | |
| tree | 742b5c6320775beb675ad3342472ae72be5f4f57 /drivers/edp | |
| parent | cf9a8fe7eaa00708939e7299b1a33236f43d783d (diff) | |
edp: tegra: adding gain factor debug knob
Added a gain factor debugfs node to scale the EDP budget that is
allocated to the core client.
Change-Id: Ic8cf6c50b66d8876b23845fcc76bdde3e4305518
Signed-off-by: Sivaram Nair <sivaramn@nvidia.com>
Reviewed-on: http://git-master/r/206097
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
Diffstat (limited to 'drivers/edp')
| -rw-r--r-- | drivers/edp/tegra_edp.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/edp/tegra_edp.c b/drivers/edp/tegra_edp.c index 5fe9083fef23..332eb74155d1 100644 --- a/drivers/edp/tegra_edp.c +++ b/drivers/edp/tegra_edp.c @@ -34,6 +34,7 @@ struct freqcap { static unsigned int gpu_high_threshold = 500; static unsigned int gpu_window = 2000; +static unsigned int gain_factor = 100; static unsigned int online_cpu_count; static bool gpu_busy; static unsigned int core_state; @@ -175,7 +176,7 @@ static void update_cur_corecap(void) if (!core_platdata) return; - power = core_edp_states[core_state]; + power = core_edp_states[core_state] * gain_factor / 100; i = core_platdata->corecap_size - 1; cap = core_platdata->corecap + i; @@ -279,8 +280,13 @@ static int core_set(void *data, u64 val) old = *pdata; *pdata = val; - if (old != *pdata) + + if (old != *pdata) { + if (pdata == &gain_factor) + update_cur_corecap(); do_cap_control(); + } + return 0; } @@ -317,6 +323,7 @@ static __devinit void init_debug(void) create_attr("force_gpu", core_client.dentry, &forced_caps.gpu); create_attr("force_emc", core_client.dentry, &forced_caps.emc); create_attr("gpu_window", core_client.dentry, &gpu_window); + create_attr("gain", core_client.dentry, &gain_factor); } #else static inline void init_debug(void) {} |