diff options
| author | Peter Zu <pzu@nvidia.com> | 2012-07-04 18:56:48 -0700 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-07-20 17:52:56 -0700 |
| commit | 147bf262ca48438ec8dca6dcbeff3f1cc456a82c (patch) | |
| tree | 1d0e985c34fd59ef153879b4707aed7ab05854c7 /arch/arm/mach-tegra/tegra3_emc.c | |
| parent | 7427955efd983959109cbfb95ae9d6564329947c (diff) | |
ARM: tegra: clock: relax memory efficiency if 3d clock is off
Bug 1003509
Change-Id: I8fb2c0cff7106671f8470b836ea26c09350d6206
Signed-off-by: Peter Zu <pzu@nvidia.com>
(cherry picked from commit df2dda0438c2aed3a961d197dce7319fefdf5b30)
Reviewed-on: http://git-master/r/115468
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/tegra3_emc.c')
| -rw-r--r-- | arch/arm/mach-tegra/tegra3_emc.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/tegra3_emc.c b/arch/arm/mach-tegra/tegra3_emc.c index a138091d9197..57a673b4df8d 100644 --- a/arch/arm/mach-tegra/tegra3_emc.c +++ b/arch/arm/mach-tegra/tegra3_emc.c @@ -46,6 +46,7 @@ static bool emc_enable; module_param(emc_enable, bool, 0644); u8 tegra_emc_bw_efficiency = 35; +u8 tegra_emc_bw_efficiency_boost = 45; #define EMC_MIN_RATE_DDR3 25500000 #define EMC_STATUS_UPDATE_TIMEOUT 100 @@ -1379,6 +1380,22 @@ static int efficiency_set(void *data, u64 val) DEFINE_SIMPLE_ATTRIBUTE(efficiency_fops, efficiency_get, efficiency_set, "%llu\n"); +static int efficiency_boost_get(void *data, u64 *val) +{ + *val = tegra_emc_bw_efficiency_boost; + return 0; +} +static int efficiency_boost_set(void *data, u64 val) +{ + tegra_emc_bw_efficiency_boost = (val > 100) ? 100 : val; + if (emc) + tegra_clk_shared_bus_update(emc); + + return 0; +} +DEFINE_SIMPLE_ATTRIBUTE(efficiency_boost_fops, efficiency_boost_get, + efficiency_boost_set, "%llu\n"); + static int __init tegra_emc_debug_init(void) { if (!tegra_emc_table) @@ -1408,6 +1425,10 @@ static int __init tegra_emc_debug_init(void) emc_debugfs_root, NULL, &efficiency_fops)) goto err_out; + if (!debugfs_create_file("efficiency_boost", S_IRUGO | S_IWUSR, + emc_debugfs_root, NULL, &efficiency_boost_fops)) + goto err_out; + return 0; err_out: |