Revert "gpu: nvgpu: Dump offending push buffer fragment"

Channel and gpfifo allocations are entirely separated from each
other, however, the code here assumes that active channel means
that the channel also has a gpfifo.

This reverts commit a24602f094380539788696d1b1567a4f4d914b17 which
added gpfifo dump. Changing debug dumping to be safe requires
refactoring the channel release code to use proper locking.

Bug 1530226

Change-Id: I2fb02542a17dd56a0a9ce732b327e34b85ade8b9
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/434038
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 0 insertions, 15 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index b4d9c785..78e52c62 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -933,21 +933,6 @@ static void channel_gk20a_free_priv_cmdbuf(struct channel_gk20a *c)
         memset(q, 0, sizeof(struct priv_cmd_queue));
 }
 
-int gk20a_find_from_priv_cmdbuf(struct channel_gk20a *c,
-                                u64 gpu_va, u32 **cpu_va)
-{
-        struct priv_cmd_queue *q = &c->priv_cmd_q;
-        int ret;
-
-        if (gpu_va >= q->base_gpuva && gpu_va < (q->base_gpuva + q->size)) {
-                *cpu_va = gpu_va - q->base_gpuva + q->mem.base_cpuva;
-                ret = 0;
-        } else
-                ret = -EINVAL;
-
-        return ret;
-}
-
 /* allocate a cmd buffer with given size. size is number of u32 entries */
 int gk20a_channel_alloc_priv_cmdbuf(struct channel_gk20a *c, u32 orig_size,
                              struct priv_cmd_entry **entry)