diff options
| author | Varun Wadekar <vwadekar@nvidia.com> | 2017-03-23 17:32:20 -0700 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2017-03-30 15:32:09 -0700 |
| commit | 87a1df73619e9031c970ea5e0813a3040cc80992 (patch) | |
| tree | 924e29f662375ff08d02a5a86f5d11ec10732107 /plat/nvidia/tegra/soc | |
| parent | ddc1c56f0b12af6171c11a5a8073c34becfedde2 (diff) | |
Tegra186: mce: add the mce_update_cstate_info() helper function
This patch adds a helper function to the MCE driver to allow its
clients to issue UPDATE_CSTATE_INFO requests, without having to
setup the CPU context struct.
We introduced a struct to encapsulate the request parameters, that
clients can pass on to the MCE driver. The MCE driver gets the
parameters from the struct and programs the hardware accordingly.
Change-Id: I02bce57506c4ccd90da82127805d6b564375cbf1
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Diffstat (limited to 'plat/nvidia/tegra/soc')
| -rw-r--r-- | plat/nvidia/tegra/soc/t186/drivers/include/mce.h | 19 | ||||
| -rw-r--r-- | plat/nvidia/tegra/soc/t186/drivers/mce/mce.c | 13 |
2 files changed, 32 insertions, 0 deletions
diff --git a/plat/nvidia/tegra/soc/t186/drivers/include/mce.h b/plat/nvidia/tegra/soc/t186/drivers/include/mce.h index 60656923..38ca32c3 100644 --- a/plat/nvidia/tegra/soc/t186/drivers/include/mce.h +++ b/plat/nvidia/tegra/soc/t186/drivers/include/mce.h @@ -102,6 +102,24 @@ typedef enum mce_cmd { #define MCE_CMD_MASK 0xFF /******************************************************************************* + * Struct to prepare UPDATE_CSTATE_INFO request + ******************************************************************************/ +typedef struct mce_cstate_info { + /* cluster cstate value */ + uint32_t cluster; + /* ccplex cstate value */ + uint32_t ccplex; + /* system cstate value */ + uint32_t system; + /* force system state? */ + uint8_t system_state_force; + /* wake mask value */ + uint32_t wake_mask; + /* update the wake mask? */ + uint8_t update_wake_mask; +} mce_cstate_info_t; + +/******************************************************************************* * Macros to prepare CSTATE info request ******************************************************************************/ /* Description of the parameters for UPDATE_CSTATE_INFO request */ @@ -322,6 +340,7 @@ int mce_update_gsc_videomem(void); int mce_update_gsc_tzdram(void); int mce_update_gsc_tzram(void); __dead2 void mce_enter_ccplex_state(uint32_t state_idx); +void mce_update_cstate_info(mce_cstate_info_t *cstate); void mce_verify_firmware_version(void); /* declarations for ARI/NVG handler functions */ diff --git a/plat/nvidia/tegra/soc/t186/drivers/mce/mce.c b/plat/nvidia/tegra/soc/t186/drivers/mce/mce.c index 9d0d71fd..1a712dcc 100644 --- a/plat/nvidia/tegra/soc/t186/drivers/mce/mce.c +++ b/plat/nvidia/tegra/soc/t186/drivers/mce/mce.c @@ -449,6 +449,19 @@ __dead2 void mce_enter_ccplex_state(uint32_t state_idx) } /******************************************************************************* + * Handler to issue the UPDATE_CSTATE_INFO request + ******************************************************************************/ +void mce_update_cstate_info(mce_cstate_info_t *cstate) +{ + arch_mce_ops_t *ops = mce_get_curr_cpu_ops(); + + /* issue the UPDATE_CSTATE_INFO request */ + ops->update_cstate_info(mce_get_curr_cpu_ari_base(), cstate->cluster, + cstate->ccplex, cstate->system, cstate->system_state_force, + cstate->wake_mask, cstate->update_wake_mask); +} + +/******************************************************************************* * Handler to read the MCE firmware version and check if it is compatible * with interface header the BL3-1 was compiled against ******************************************************************************/ |