gpu: nvgpu: Deprecate NVGPU_GPU_IOCTL_INVAL_ICACHE

Deprecate NVGPU_GPU_IOCTL_INVAL_ICACHE as it is unused and has
a broken implementation.

Bug 200439908

Change-Id: Iab6f08cf3dd4853ba6c95cbc8443331bf505e514
Signed-off-by: Anup Mahindre <amahindre@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1800797
GVS: Gerrit_Virtual_Submit
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 0 insertions, 25 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c b/drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
index 8130b7d0..fc1f7011 100644
--- a/drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
+++ b/drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
@@ -578,27 +578,6 @@ static int nvgpu_gpu_ioctl_l2_fb_ops(struct gk20a *g,
         return err;
 }
 
-/* Invalidate i-cache for kepler & maxwell */
-static int nvgpu_gpu_ioctl_inval_icache(
-                struct gk20a *g,
-                struct nvgpu_gpu_inval_icache_args *args)
-{
-        struct channel_gk20a *ch;
-        int err;
-
-        ch = gk20a_get_channel_from_file(args->channel_fd);
-        if (!ch)
-                return -EINVAL;
-
-        /* Take the global lock, since we'll be doing global regops */
-        nvgpu_mutex_acquire(&g->dbg_sessions_lock);
-        err = g->ops.gr.inval_icache(g, ch);
-        nvgpu_mutex_release(&g->dbg_sessions_lock);
-
-        gk20a_channel_put(ch);
-        return err;
-}
-
 static int nvgpu_gpu_ioctl_set_mmu_debug_mode(
                 struct gk20a *g,
                 struct nvgpu_gpu_mmu_debug_mode_args *args)
@@ -1824,10 +1803,6 @@ long gk20a_ctrl_dev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg
                 err = nvgpu_gpu_ioctl_l2_fb_ops(g,
                            (struct nvgpu_gpu_l2_fb_args *)buf);
                 break;
-        case NVGPU_GPU_IOCTL_INVAL_ICACHE:
-                err = gr_gk20a_elpg_protected_call(g,
-                                nvgpu_gpu_ioctl_inval_icache(g, (struct nvgpu_gpu_inval_icache_args *)buf));
-                break;
 
         case NVGPU_GPU_IOCTL_SET_MMUDEBUG_MODE:
                 err =  nvgpu_gpu_ioctl_set_mmu_debug_mode(g,