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gpu: nvgpu: remove code for ch not bound to tsg

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- Remove handling for channels that are no more bound to tsg
  as channel could be referenceable but no more part of a tsg
- Use tsg_gk20a_from_ch to get pointer to tsg for a given channel
- Clear unhandled gr interrupts

Bug 2429295
JIRA NVGPU-1580

Change-Id: I9da43a2bc9a0282c793b9f301eaf8e8604f91d70
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1972492
(cherry picked from commit 013ca60edd
in dev-kernel)
Reviewed-on: https://git-master.nvidia.com/r/2018262
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Debarshi Dutta <ddutta@nvidia.com>
Tested-by: Debarshi Dutta <ddutta@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Seema Khowala
2018-12-13 11:02:11 -08:00
committed by mobile promotions
parent d975bda398
commit c9d4df288d
6 changed files with 110 additions and 124 deletions
Download Patch File Download Diff File Expand all files Collapse all files

88
drivers/gpu/nvgpu/gk20a/gr_gk20a.c
View File

@@ -3018,7 +3018,6 @@ static void gr_gk20a_free_channel_pm_ctx(struct gk20a *g,
int gk20a_alloc_obj_ctx(struct channel_gk20a *c, u32 class_num, u32 flags)
{
struct gk20a *g = c->g;
struct fifo_gk20a *f = &g->fifo;
struct nvgpu_gr_ctx *gr_ctx;
struct tsg_gk20a *tsg = NULL;
int err = 0;
@@ -3041,11 +3040,11 @@ int gk20a_alloc_obj_ctx(struct channel_gk20a *c, u32 class_num, u32 flags)
}
c->obj_class = class_num;
if (!gk20a_is_channel_marked_as_tsg(c)) {
tsg = tsg_gk20a_from_ch(c);
if (tsg == NULL) {
return -EINVAL;
}
tsg = &f->tsg[c->tsgid];
gr_ctx = &tsg->gr_ctx;
if (!nvgpu_mem_is_valid(&gr_ctx->mem)) {
@@ -5213,21 +5212,21 @@ static void gk20a_gr_set_error_notifier(struct gk20a *g,
return;
}
if (gk20a_is_channel_marked_as_tsg(ch)) {
tsg = &g->fifo.tsg[ch->tsgid];
tsg = tsg_gk20a_from_ch(ch);
if (tsg != NULL) {
nvgpu_rwsem_down_read(&tsg->ch_list_lock);
nvgpu_list_for_each_entry(ch_tsg, &tsg->ch_list,
channel_gk20a, ch_entry) {
if (gk20a_channel_get(ch_tsg)) {
g->ops.fifo.set_error_notifier(ch_tsg,
error_notifier);
error_notifier);
gk20a_channel_put(ch_tsg);
}
}
nvgpu_rwsem_up_read(&tsg->ch_list_lock);
} else {
g->ops.fifo.set_error_notifier(ch, error_notifier);
nvgpu_err(g, "chid: %d is not bound to tsg", ch->chid);
}
}
@@ -5394,12 +5393,21 @@ int gk20a_gr_handle_semaphore_pending(struct gk20a *g,
struct gr_gk20a_isr_data *isr_data)
{
struct channel_gk20a *ch = isr_data->ch;
struct tsg_gk20a *tsg = &g->fifo.tsg[ch->tsgid];
struct tsg_gk20a *tsg;
g->ops.fifo.post_event_id(tsg,
NVGPU_EVENT_ID_GR_SEMAPHORE_WRITE_AWAKEN);
if (ch == NULL) {
return 0;
}
nvgpu_cond_broadcast(&ch->semaphore_wq);
tsg = tsg_gk20a_from_ch(ch);
if (tsg != NULL) {
g->ops.fifo.post_event_id(tsg,
NVGPU_EVENT_ID_GR_SEMAPHORE_WRITE_AWAKEN);
nvgpu_cond_broadcast(&ch->semaphore_wq);
} else {
nvgpu_err(g, "chid: %d is not bound to tsg", ch->chid);
}
return 0;
}
@@ -5434,7 +5442,12 @@ int gk20a_gr_handle_notify_pending(struct gk20a *g,
u32 buffer_size;
u32 offset;
bool exit;
#endif
if (ch == NULL || tsg_gk20a_from_ch(ch) == NULL) {
return 0;
}
#if defined(CONFIG_GK20A_CYCLE_STATS)
/* GL will never use payload 0 for cycle state */
if ((ch->cyclestate.cyclestate_buffer == NULL) || (isr_data->data_lo == 0))
return 0;
@@ -5975,7 +5988,7 @@ int gk20a_gr_isr(struct gk20a *g)
u32 chid;
nvgpu_log_fn(g, " ");
nvgpu_log(g, gpu_dbg_intr, "pgraph intr %08x", gr_intr);
nvgpu_log(g, gpu_dbg_intr, "pgraph intr 0x%08x", gr_intr);
if (gr_intr == 0U) {
return 0;
@@ -6009,11 +6022,13 @@ int gk20a_gr_isr(struct gk20a *g)
chid = ch != NULL ? ch->chid : FIFO_INVAL_CHANNEL_ID;
if (ch == NULL) {
nvgpu_err(g, "ch id is INVALID 0xffffffff");
}
if ((ch != NULL) && gk20a_is_channel_marked_as_tsg(ch)) {
tsg = &g->fifo.tsg[ch->tsgid];
nvgpu_err(g, "pgraph intr: 0x%08x, chid: INVALID", gr_intr);
} else {
tsg = tsg_gk20a_from_ch(ch);
if (tsg == NULL) {
nvgpu_err(g, "pgraph intr: 0x%08x, chid: %d "
"not bound to tsg", gr_intr, chid);
}
}
nvgpu_log(g, gpu_dbg_intr | gpu_dbg_gpu_dbg,
@@ -6198,7 +6213,9 @@ int gk20a_gr_isr(struct gk20a *g)
nvgpu_log(g, gpu_dbg_intr | gpu_dbg_gpu_dbg,
"GPC exception pending");
fault_ch = isr_data.ch;
if (tsg != NULL) {
fault_ch = isr_data.ch;
}
/* fault_ch can be NULL */
/* check if any gpc has an exception */
@@ -6225,39 +6242,42 @@ int gk20a_gr_isr(struct gk20a *g)
}
if (need_reset) {
if (tsgid != NVGPU_INVALID_TSG_ID) {
if (tsg != NULL) {
gk20a_fifo_recover(g, gr_engine_id,
tsgid, true, true, true,
RC_TYPE_GR_FAULT);
} else if (ch) {
gk20a_fifo_recover(g, gr_engine_id,
ch->chid, false, true, true,
RC_TYPE_GR_FAULT);
} else {
if (ch != NULL) {
nvgpu_err(g, "chid: %d referenceable but not "
"bound to tsg", chid);
}
gk20a_fifo_recover(g, gr_engine_id,
0, false, false, true,
RC_TYPE_GR_FAULT);
}
}
if ((gr_intr != 0U) && (ch == NULL)) {
/* Clear interrupts for unused channel. This is
probably an interrupt during gk20a_free_channel() */
nvgpu_err(g,
"unhandled gr interrupt 0x%08x for unreferenceable channel, clearing",
gr_intr);
if (gr_intr != 0U) {
/* clear unhandled interrupts */
if (ch == NULL) {
/*
* This is probably an interrupt during
* gk20a_free_channel()
*/
nvgpu_err(g, "unhandled gr intr 0x%08x for "
"unreferenceable channel, clearing",
gr_intr);
} else {
nvgpu_err(g, "unhandled gr intr 0x%08x for chid: %d",
gr_intr, chid);
}
gk20a_writel(g, gr_intr_r(), gr_intr);
gr_intr = 0;
}
gk20a_writel(g, gr_gpfifo_ctl_r(),
grfifo_ctl | gr_gpfifo_ctl_access_f(1) |
gr_gpfifo_ctl_semaphore_access_f(1));
if (gr_intr) {
nvgpu_err(g,
"unhandled gr interrupt 0x%08x", gr_intr);
}
/* Posting of BPT events should be the last thing in this function */
if ((global_esr != 0U) && (tsg != NULL)) {