nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-24 18:21:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

platform: nvadsp: dfs: update freq table

Browse Source 
Update adsp cpu frequency table to be specific to
a chip to reflect supported frequencies.

Bug 200295526
Bug 200322504

Change-Id: I538cbe5280212cc6cd54198d2f3d8e4f78664045
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1526341
(cherry picked from commit ae50e01f2e14c9b9280c4d8d9ef712ef6f38add4)
Reviewed-on: https://git-master.nvidia.com/r/1527566
Reviewed-on: https://git-master.nvidia.com/r/1537338
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Nitin Kumbhar
2017-07-25 07:50:28 -07:00
committed by Laxman Dewangan
parent 0081a6e97c
commit a82a2e94de
1 changed files with 43 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/platform/tegra/nvadsp/adsp_dfs.c
View File

@@ -47,7 +47,7 @@ enum adsp_dfs_reply {
* Freqency in Hz.The frequency always needs to be a multiple of 12.8 Mhz and
* should be extended with a slab 38.4 Mhz.
*/
static unsigned long adsp_cpu_freq_table[] = {
static unsigned long adsp_cpu_freq_table_t21x[] = {
MIN_ADSP_FREQ,
MIN_ADSP_FREQ * 2,
MIN_ADSP_FREQ * 3,
@@ -71,6 +71,18 @@ static unsigned long adsp_cpu_freq_table[] = {
MIN_ADSP_FREQ * 21,
};
/*
* Frequency in Hz.
*/
static unsigned long adsp_cpu_freq_table_t18x[] = {
150000000lu,
300000000lu,
600000000lu,
};
static unsigned long *adsp_cpu_freq_table;
static int adsp_cpu_freq_table_size;
struct adsp_dfs_policy {
bool enable;
/* update_freq_flag = TRUE, ADSP ACKed the new freq
@@ -96,12 +108,17 @@ struct adsp_dfs_policy {
unsigned long ovr_freq;
};
#define MAX_SIZE(x, y) (x > y ? x : y)
#define TIME_IN_STATE_SIZE MAX_SIZE(ARRAY_SIZE(adsp_cpu_freq_table_t21x), \
ARRAY_SIZE(adsp_cpu_freq_table_t18x))
struct adsp_freq_stats {
struct device *dev;
unsigned long long last_time;
int last_index;
u64 time_in_state[sizeof(adsp_cpu_freq_table) \
/ sizeof(adsp_cpu_freq_table[0])];
u64 time_in_state[TIME_IN_STATE_SIZE];
int state_num;
};
@@ -190,11 +207,28 @@ static unsigned long adsp_clk_get_rate(struct adsp_dfs_policy *policy)
return clk_get_rate(policy->adsp_clk);
}
static void adsp_cpu_freq_table_setup(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
if (adsp_cpu_freq_table)
return;
if (of_device_is_compatible(node, "nvidia,tegra210-adsp")) {
adsp_cpu_freq_table = adsp_cpu_freq_table_t21x;
adsp_cpu_freq_table_size = ARRAY_SIZE(adsp_cpu_freq_table_t21x);
} else {
adsp_cpu_freq_table = adsp_cpu_freq_table_t18x;
adsp_cpu_freq_table_size = ARRAY_SIZE(adsp_cpu_freq_table_t18x);
}
}
/* Expects and returns freq in Hz as table is formmed in terms of Hz */
static unsigned long adsp_get_target_freq(unsigned long tfreq, int *index)
{
int i;
int size = sizeof(adsp_cpu_freq_table) / sizeof(adsp_cpu_freq_table[0]);
int size = adsp_cpu_freq_table_size;
if (tfreq <= adsp_cpu_freq_table[0]) {
*index = 0;
@@ -795,7 +829,7 @@ void adsp_update_dfs(bool val)
/* Should be called after ADSP os is loaded */
int adsp_dfs_core_init(struct platform_device *pdev)
{
int size = sizeof(adsp_cpu_freq_table) / sizeof(adsp_cpu_freq_table[0]);
int size = adsp_cpu_freq_table_size;
struct nvadsp_drv_data *drv = platform_get_drvdata(pdev);
uint16_t mid = HOST_ADSP_DFS_MBOX_ID;
int ret = 0;
@@ -807,6 +841,10 @@ int adsp_dfs_core_init(struct platform_device *pdev)
device = &pdev->dev;
policy = &dfs_policy;
/* Set up adsp cpu freq table as per chip */
if (!adsp_cpu_freq_table)
adsp_cpu_freq_table_setup(pdev);
ret = adsp_clk_get(policy);
if (ret)
goto end;