nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-24 10:34:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: Falcon controller wait for halt

Browse Source 
- Added nvgpu_flcn_wait_for_halt() interface to wait for
falcon halt, which block till falcon halt or timeout
expire for selected falcon controller

- Replaced falcon wait for halt code with method
nvgpu_flcn_wait_for_halt()

NVGPU JIRA-99

Change-Id: Ie1809dc29ff65bddc7ef2859a9ee9b4f0003b127
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master/r/1510201
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
This commit is contained in:
Mahantesh Kumbar
2017-06-28 16:53:41 +05:30
committed by mobile promotions
parent 2f712e2230
commit fbeca4a841
5 changed files with 27 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/gpu/nvgpu/common/falcon/falcon.c
View File

@@ -102,6 +102,26 @@ bool nvgpu_flcn_get_cpu_halted_status(struct nvgpu_falcon *flcn)
return status;
}
int nvgpu_flcn_wait_for_halt(struct nvgpu_falcon *flcn, unsigned int timeout)
{
struct gk20a *g = flcn->g;
struct nvgpu_timeout to;
int status = 0;
nvgpu_timeout_init(g, &to, timeout, NVGPU_TIMER_CPU_TIMER);
do {
if (nvgpu_flcn_get_cpu_halted_status(flcn))
break;
nvgpu_udelay(10);
} while (!nvgpu_timeout_expired(&to));
if (nvgpu_timeout_peek_expired(&to))
status = -EBUSY;
return status;
}
bool nvgpu_flcn_get_idle_status(struct nvgpu_falcon *flcn)
{
struct nvgpu_falcon_ops *flcn_ops = &flcn->flcn_ops;