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gpu: nvgpu: Standardize HAS_SYNCPOINTs check

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Nvgpu uses many ways to check if sync points are enabled. The four
ways used to be:

  platform->has_syncpoints
  g->has_syncpoints
  nvgpu_is_enabled(g, NVPGU_HAS_SYNCPOINTS)
  gk20a_platform_has_syncpoints()

This patch standardizes all usage to now be nvgpu_has_syncpoints()
which is based on gk20a_platform_has_syncpoints() - just renamed to
be general to nvgpu.

All usage of the other forms have now been consolidated. However,
under the hood nvgpu_has_syncpoints() does check the is_enabled
flag. This flag is now set where g->has_syncpoints used to be set
based on the platform data.

The basic dependency chain is this:

  nvgpu_has_syncpoints -> NVGPU_HAS_SYNCPOINTS ->
    platform->has_syncpoints

However, note: there are several places where syncpoints can be
disabled if some other driver initialization fails (for ex. host1x).
Also note that nvgpu_has_syncpoints() also considers a disable
variable set by debugfs.

Bug 2327574

Change-Id: Ia2375a80f5f2e27285e6175568dd13e6bb25fd33
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1803975
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Alex Waterman
2018-08-21 10:35:06 -07:00
committed by Abdul Salam
parent ac87a707b3
commit 966d1a08be
11 changed files with 29 additions and 29 deletions
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3
drivers/gpu/nvgpu/os/linux/driver_common.c
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@@ -92,6 +92,8 @@ static void nvgpu_init_vars(struct gk20a *g)
nvgpu_init_list_node(&g->boardobj_head);
nvgpu_init_list_node(&g->boardobjgrp_head);
__nvgpu_set_enabled(g, NVGPU_HAS_SYNCPOINTS, platform->has_syncpoints);
}
static void nvgpu_init_gr_vars(struct gk20a *g)
@@ -165,7 +167,6 @@ static void nvgpu_init_pm_vars(struct gk20a *g)
g->aggressive_sync_destroy = platform->aggressive_sync_destroy;
g->aggressive_sync_destroy_thresh = platform->aggressive_sync_destroy_thresh;
g->has_syncpoints = platform->has_syncpoints;
#ifdef CONFIG_NVGPU_SUPPORT_CDE
g->has_cde = platform->has_cde;
#endif