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gpu: nvgpu: always handle gr exception

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Always handle gr exception regardless of whether the SM debugger is
attached or not.

Bug 1699676

Change-Id: If98ab6948c42d3fb1e4f02d54db12745485b0607
Signed-off-by: Adeel Raza <araza@nvidia.com>
Reviewed-on: http://git-master/r/1013164
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Adeel Raza
2016-02-17 19:48:49 -08:00
committed by Terje Bergstrom
parent 21605d09a5
commit d3bd5adfca
1 changed files with 9 additions and 16 deletions
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25
drivers/gpu/nvgpu/gk20a/gr_gk20a.c
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@@ -5571,28 +5571,21 @@ int gk20a_gr_isr(struct gk20a *g)
/* check if a gpc exception has occurred */ /* check if a gpc exception has occurred */
if (exception & gr_exception_gpc_m() && need_reset == 0) { if (exception & gr_exception_gpc_m() && need_reset == 0) {
struct channel_gk20a *fault_ch; struct channel_gk20a *fault_ch;
bool post_event = false;
gk20a_dbg(gpu_dbg_intr | gpu_dbg_gpu_dbg, "GPC exception pending"); gk20a_dbg(gpu_dbg_intr | gpu_dbg_gpu_dbg, "GPC exception pending");
/* if no sm debugger is present, clean up the channel */
if (!gk20a_gr_sm_debugger_attached(g)) {
gk20a_dbg(gpu_dbg_intr | gpu_dbg_gpu_dbg,
"SM debugger not attached, clearing interrupt");
need_reset |= -EFAULT;
} else {
bool post_event = false;
fault_ch = gk20a_fifo_channel_from_hw_chid(g, fault_ch = gk20a_fifo_channel_from_hw_chid(g,
isr_data.chid); isr_data.chid);
/* check if any gpc has an exception */ /* check if any gpc has an exception */
need_reset |= gk20a_gr_handle_gpc_exception(g, need_reset |= gk20a_gr_handle_gpc_exception(g,
&post_event, fault_ch); &post_event, fault_ch);
/* signal clients waiting on an event */ /* signal clients waiting on an event */
if (post_event && fault_ch) if (gk20a_gr_sm_debugger_attached(g) && post_event && fault_ch)
gk20a_dbg_gpu_post_events(fault_ch); gk20a_dbg_gpu_post_events(fault_ch);
}
if (need_reset && ch) if (need_reset && ch)
gk20a_set_error_notifier(ch, gk20a_set_error_notifier(ch,