diff options
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 54ea4e26c7a9..0788de9a5407 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -690,9 +690,9 @@ static void its_flush_cmd(struct its_node *its, struct its_cmd_block *cmd) dsb(ishst); } -static void its_wait_for_range_completion(struct its_node *its, - struct its_cmd_block *from, - struct its_cmd_block *to) +static int its_wait_for_range_completion(struct its_node *its, + struct its_cmd_block *from, + struct its_cmd_block *to) { u64 rd_idx, from_idx, to_idx; u32 count = 1000000; /* 1s! */ @@ -713,12 +713,15 @@ static void its_wait_for_range_completion(struct its_node *its, count--; if (!count) { - pr_err_ratelimited("ITS queue timeout\n"); - return; + pr_err_ratelimited("ITS queue timeout (%llu %llu %llu)\n", + from_idx, to_idx, rd_idx); + return -1; } cpu_relax(); udelay(1); } + + return 0; } /* Warning, macro hell follows */ @@ -754,7 +757,8 @@ post: \ next_cmd = its_post_commands(its); \ raw_spin_unlock_irqrestore(&its->lock, flags); \ \ - its_wait_for_range_completion(its, cmd, next_cmd); \ + if (its_wait_for_range_completion(its, cmd, next_cmd)) \ + pr_err_ratelimited("ITS cmd %ps failed\n", builder); \ } static void its_build_sync_cmd(struct its_cmd_block *sync_cmd, |