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gpu: nvgpu: Add debugging to the semaphore code

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Add GPU debugging to the semaphore code.

Bug 1732449
JIRA DNVGPU-12

Change-Id: I98466570cf8d234b49a7f85d88c834648ddaaaee
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1198594
(cherry picked from commit 420809cc31fcdddde32b8e59721676c67b45f592)
Reviewed-on: http://git-master/r/1153671
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Alex Waterman
2016-04-29 17:03:03 -07:00
committed by mobile promotions
parent 0e69c6707b
commit 9eac0fd849
4 changed files with 59 additions and 2 deletions
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18
drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
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@@ -428,9 +428,12 @@ static void add_sema_cmd(struct gk20a *g, struct channel_gk20a *c,
struct gk20a_semaphore *s, struct priv_cmd_entry *cmd,
int cmd_size, bool acquire, bool wfi)
{
u32 off = cmd->off;
int ch = c->hw_chid;
u32 ob, off = cmd->off;
u64 va;
ob = off;
/*
* RO for acquire (since we just need to read the mem) and RW for
* release since we will need to write back to the semaphore memory.
@@ -480,6 +483,19 @@ static void add_sema_cmd(struct gk20a *g, struct channel_gk20a *c,
/* ignored */
gk20a_mem_wr32(g, cmd->mem, off++, 0);
}
if (acquire)
gpu_sema_verbose_dbg("(A) c=%d ACQ_GE %-4u owner=%-3d"
"va=0x%llx cmd_mem=0x%llx b=0x%llx off=%u",
ch, gk20a_semaphore_get_value(s),
s->hw_sema->ch->hw_chid, va, cmd->gva,
cmd->mem->gpu_va, ob);
else
gpu_sema_verbose_dbg("(R) c=%d INCR %u (%u) va=0x%llx "
"cmd_mem=0x%llx b=0x%llx off=%u",
ch, gk20a_semaphore_get_value(s),
readl(s->hw_sema->value), va, cmd->gva,
cmd->mem->gpu_va, ob);
}
static int gk20a_channel_semaphore_wait_syncpt(