gpu: nvgpu: Return gr_ctx_resident from NVGPU_DBG_GPU_IOCTL_REG_OPS

NVGPU_DBG_GPU_IOCTL_REG_OPS currently doesn't return if the ctx was
resident in engine or not.

Regops are broken down into batches of 128 and each batch is executed
together. Since there only 32 bits were available in IOCTL args, returning
is ctx was resident isn't possible for all batches.
Hence return if the ctx was resident for the first batch.

Bug 200445575

Change-Id: Iff950be25893de0afadd523d4ea04842a8ddf2af
Signed-off-by: Anup Mahindre <amahindre@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1812975
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/ioctl_dbg.c b/drivers/gpu/nvgpu/os/linux/ioctl_dbg.c
index 9ea681b1..1eace94b 100644
--- a/drivers/gpu/nvgpu/os/linux/ioctl_dbg.c
+++ b/drivers/gpu/nvgpu/os/linux/ioctl_dbg.c
@@ -869,6 +869,9 @@ static int nvgpu_ioctl_channel_reg_ops(struct dbg_session_gk20a *dbg_s,
         struct gk20a *g = dbg_s->g;
         struct channel_gk20a *ch;
 
+        bool is_current_ctx;
+
+
         nvgpu_log_fn(g, "%d ops, max fragment %d", args->num_ops, g->dbg_regops_tmp_buf_ops);
 
         if (args->num_ops > NVGPU_IOCTL_DBG_REG_OPS_LIMIT) {
@@ -954,11 +957,15 @@ static int nvgpu_ioctl_channel_reg_ops(struct dbg_session_gk20a *dbg_s,
                                 break;
 
                         err = g->ops.regops.exec_regops(
-                                dbg_s, g->dbg_regops_tmp_buf, num_ops);
+                                dbg_s, g->dbg_regops_tmp_buf, num_ops, &is_current_ctx);
 
                         if (err) {
                                 break;
-                        }
+                        }
+
+                        if (ops_offset == 0) {
+                                args->gr_ctx_resident = is_current_ctx;
+                        }
 
                         err = nvgpu_get_regops_data_linux(g->dbg_regops_tmp_buf,
                                         linux_fragment, num_ops);