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authorDmitry Osipenko <digetx@gmail.com>2020-06-29 06:18:42 +0300
committerThierry Reding <treding@nvidia.com>2020-07-17 17:06:14 +0300
commit7c6b8cac8c19240f013a62f133e2dc8cfeb7a206 (patch)
tree845cf71da58c105d0b6059ebe3fb819a3b45669f /drivers/gpu/host1x
parent35681862808472a0a4b9a8817ae2789c0b5b3edc (diff)
downloadlinux-7c6b8cac8c19240f013a62f133e2dc8cfeb7a206.tar.xz
gpu: host1x: debug: Dump push buffer state
When job hangs and there is a memory error pointing at channel's push buffer, it is very handy to know the push buffer's state. This patch makes the push buffer's state to be dumped into KMSG in addition to the job's gathers. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/host1x')
-rw-r--r--drivers/gpu/host1x/hw/debug_hw.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/hw/debug_hw.c b/drivers/gpu/host1x/hw/debug_hw.c
index 02125842071c..f31bcfa1b837 100644
--- a/drivers/gpu/host1x/hw/debug_hw.c
+++ b/drivers/gpu/host1x/hw/debug_hw.c
@@ -192,8 +192,14 @@ static void show_gather(struct output *o, phys_addr_t phys_addr,
static void show_channel_gathers(struct output *o, struct host1x_cdma *cdma)
{
+ struct push_buffer *pb = &cdma->push_buffer;
struct host1x_job *job;
+ host1x_debug_output(o, "PUSHBUF at %pad, %u words\n",
+ &pb->dma, pb->size / 4);
+
+ show_gather(o, pb->dma, pb->size / 4, cdma, pb->dma, pb->mapped);
+
list_for_each_entry(job, &cdma->sync_queue, list) {
unsigned int i;