gpu: nvgpu: Add LDIV slowdown factor in INIT cmd.

PMU ucode is updated to include LDIV slowdown factor in gr_init_param command.
- Defined a new version gr_init_param_v2.
- Updated the PMU FW version code.
- Set the LDIV slowdown factor to 0x1e by default.
- Added sysfs entry to program ldiv_slowdown factor at runtime.

Bug 200391931

Change-Id: Ic66049588c3b20e934faff3f29283f66c30303e4
Signed-off-by: Deepak Goyal <dgoyal@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1674208
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/driver_common.c b/drivers/gpu/nvgpu/common/linux/driver_common.c
index c3663117..53789423 100644
--- a/drivers/gpu/nvgpu/common/linux/driver_common.c
+++ b/drivers/gpu/nvgpu/common/linux/driver_common.c
@@ -159,6 +159,7 @@ static void nvgpu_init_pm_vars(struct gk20a *g)
         g->support_pmu = support_gk20a_pmu(dev_from_gk20a(g));
         g->can_railgate = platform->can_railgate_init;
         g->railgate_delay = platform->railgate_delay_init;
+        g->ldiv_slowdown_factor = platform->ldiv_slowdown_factor_init;
         __nvgpu_set_enabled(g, NVGPU_PMU_PERFMON, platform->enable_perfmon);
 
         /* set default values to aelpg parameters */