diff options
author | Divya Singhatwaria <dsinghatwari@nvidia.com> | 2019-07-23 01:13:35 -0400 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2019-08-02 15:57:24 -0400 |
commit | ae175e45edc5807131dfb1b63d3e4795e96a3f86 (patch) | |
tree | c209caf5a5804f250be83e4a68295daa64d6cfb5 /drivers/gpu/nvgpu/os/linux/platform_gk20a.h | |
parent | 47f6bc0c2e85d0a8ff943b88c81108ca1bfc588e (diff) |
gpu: nvgpu: Use TPC_PG_MASK to powergate the TPC
- In GV11B, read fuse_status_opt_tpc_gpc register
to read which TPCs are floorswept.
- The driver will also read sysfs node: tpc_pg_mask
- Based on these two values "can_tpc_powergate" will
be set to true or false and mask will be used to write to
fuse_ctrl_opt_tpc_gpc register to powergate the TPC.
- can_tpc_powergate = true indicates that the mask value
sent from userspace is valid and can be used to power gate
the desired TPC
- can_tpc_powergate = false indicates that the mask value
sent from userspace is not valid and cannot be used to
power gate the desired TPC.
Bug 200532639
Change-Id: Ib0806e4c96305a13b3574e8063ad8e16770aa7cd
Signed-off-by: Divya Singhatwaria <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2159219
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/os/linux/platform_gk20a.h')
-rw-r--r-- | drivers/gpu/nvgpu/os/linux/platform_gk20a.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/nvgpu/os/linux/platform_gk20a.h b/drivers/gpu/nvgpu/os/linux/platform_gk20a.h index 2ddadd2e..adec8607 100644 --- a/drivers/gpu/nvgpu/os/linux/platform_gk20a.h +++ b/drivers/gpu/nvgpu/os/linux/platform_gk20a.h | |||
@@ -196,8 +196,8 @@ struct gk20a_platform { | |||
196 | /* Pre callback is called before frequency change */ | 196 | /* Pre callback is called before frequency change */ |
197 | void (*prescale)(struct device *dev); | 197 | void (*prescale)(struct device *dev); |
198 | 198 | ||
199 | /* Set TPC_PG during probe */ | 199 | /* Set TPC_PG_MASK during probe */ |
200 | void (*set_tpc_pg_mask)(struct device *dev, u32 tpc_mask); | 200 | void (*set_tpc_pg_mask)(struct device *dev, u32 tpc_pg_mask); |
201 | 201 | ||
202 | /* Devfreq governor name. If scaling is enabled, we request | 202 | /* Devfreq governor name. If scaling is enabled, we request |
203 | * this governor to be used in scaling */ | 203 | * this governor to be used in scaling */ |