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gpu: nvgpu: initialize gr struct in poweron path

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struct nvgpu_gr is right now initialized during probe and from OS
specific code. To support multiple instances of graphics engine,
nvgpu needs to initialize nvgpu_gr after number of engine instances
have been enumerated in poweron path.
Hence move nvgpu_gr_alloc() to poweron path and after gr manager has
been initialized.

Some of the members of nvgpu_gr are initialized in probe path and they
too are in OS specific code. Move them to common code in
nvgpu_gr_alloc()

Add field fecs_feature_override_ecc_val to struct gk20a to store the
override flag read from device tree. This flag is later copied to
nvgpu_gr in poweron path.

Update tpc_pg_mask_store() to check for g->gr being NULL before
accessing golden image pointer.
Update tpc_fs_mask_store() to return error if g->gr is not initialized.
This path needs nvgpu_gr struct initialized. Also fix the incorrect
NULL pointer check in tpc_fs_mask_store() which breaks the write path
to this sysfs.

Jira NVGPU-5648

Change-Id: Ifa2f66f3663dc2f7c8891cb03b25e997e148ab06
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2397259
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Lakshmanan M <lm@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Deepak Nibade
2020-08-10 18:04:47 +05:30
committed by Alex Waterman
parent a04525ece8
commit 010f818596
13 changed files with 40 additions and 54 deletions
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6
drivers/gpu/nvgpu/os/linux/driver_common.c
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@@ -109,10 +109,8 @@ static void nvgpu_init_vars(struct gk20a *g)
nvgpu_set_enabled(g, NVGPU_HAS_SYNCPOINTS, platform->has_syncpoints);
}
static void nvgpu_init_gr_vars(struct gk20a *g)
static void nvgpu_init_max_comptag(struct gk20a *g)
{
nvgpu_gr_init(g);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)
nvgpu_log_info(g, "total ram pages : %lu", totalram_pages());
#else
@@ -264,7 +262,7 @@ int nvgpu_probe(struct gk20a *g,
int err = 0;
nvgpu_init_vars(g);
nvgpu_init_gr_vars(g);
nvgpu_init_max_comptag(g);
nvgpu_init_timeout(g);
nvgpu_init_timeslice(g);
nvgpu_init_pm_vars(g);