ACCESS_ONCE() is used for making sure that in a given place of code
access a variable exactly once. It prevents compiler rearranging the
read from happening earlier.
Remove its use from cases where rearranging of the read does not
create problems.
Change-Id: I340f375e8fecc31f3a3fab543256069cb4c682dc
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1531649
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
A negative value in the timeout duration does not have any special uses,
so change the duration type to u32 (from just int). Delete some
unnecessary typecasts to int.
Also change MAX_SCHEDULE_TIMEOUT to ULONG_MAX in default gr idle timeout
because the value is in milliseconds instead of scheduling units and to
drop unnecessary Linux dependency.
Change-Id: I5cf6febd4f1cb00c46fe159603436a9ac3b003ac
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master/r/1512565
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
- nvgpu_pmu_reset() as pmu reset for
all chips & removed gk20a_pmu_reset() &
gp106_pmu_reset() along with dependent
code.
- Created ops to do PMU engine reset & to
know the engine reset status
- Removed pmu.reset ops & replaced with
nvgpu_flcn_reset(pmu->flcn)
- Moved sec2 reset to sec2_gp106 from
pmu_gp106 & cleaned PMU code part of sec2.
JIRA NVGPU-99
Change-Id: I7575e4ca2b34922d73d171f6a41bfcdc2f40dc96
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master/r/1507881
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
msleep is not recommended for (1ms - 20ms). So use usleep_range
instead to have a more deterministic sleep time.
Also fix the print for target_ref_count that could either be 2 or
1 based on whether GPU rail-gating is enabled or not.
Bug 200294536
Change-Id: I26c9ed8a1badc84db5efa89347a227e6b46f603c
Signed-off-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-on: http://git-master/r/1500409
Reviewed-on: http://git-master/r/1503628
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
When the pmu reaches PMU_STATE_STARTED, exit from the nvgpu_pg_init_task
thread as it's no longer necessary. This prevents a possibly long wait
on the signaling condition, which would make Linux think that the thread
has been blocked and print a warning.
Bug 200317814
Change-Id: I4104896867ee13eb9d53b1b19b659a7839adb73f
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1501504
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
- moved pg related code to pmu_pg.c under common/pmu folder
PG state machine support methods
PG ACK handlers
AELPG methods
PG enable/disable methods
-prepended with nvgpu_ for elpg/aelpg global methods
by replacing gk20a_
JIRA NVGPU-97
Change-Id: I2148a69ff86b5c5d43c521ff6e241db84afafd82
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1498363
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
- Moved pmu f/w related support from pmu_gk20a.c
to "drivers/gpu/nvgpu/common/pmu/pmu_fw.c" file
- Prepended with nvgpu_ for global functions & replaced
wherever used
- Moved below list related to PMU f/w
init/remove,
PMU version specific ops,
non-secure ucode blob prepare,
JIRA NVGPU-56
Change-Id: Ifdad8c560bd233e98728717d5868119e9d8e8d90
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1480636
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
- Moved PMU IPC related code to
drivers/gpu/nvgpu/common/pmu/pmu_ipc.c file,
-Below is the list which are moved
seq
mutex
queue
cmd/msg post & process
event handling
NVGPU-56
Change-Id: Ic380faa27de4e5574d5b22500125e86027fd4b5d
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1478167
GVS: Gerrit_Virtual_Submit
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
