gpu: nvgpu: Remove NVGPU_IOCTL_GET_BUFFER_INFO

The IOCTL was introduced for making efficient query of buffer
identity and size. It was never taken into use, and it adds a
dependency to Tegra specific dma_buf API, so remove it.

JIRA NVGPU-4

Change-Id: I194d7bb1f54997900a3be8d39c93331befa225c7
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1648001
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 0 insertions, 12 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/ioctl_ctrl.c b/drivers/gpu/nvgpu/common/linux/ioctl_ctrl.c
index ebbe7dda..b751a337 100644
--- a/drivers/gpu/nvgpu/common/linux/ioctl_ctrl.c
+++ b/drivers/gpu/nvgpu/common/linux/ioctl_ctrl.c
@@ -753,13 +753,6 @@ static int gk20a_ctrl_vsm_mapping(struct gk20a *g,
         return err;
 }
 
-static int gk20a_ctrl_get_buffer_info(
-        struct gk20a *g, struct nvgpu_gpu_get_buffer_info_args *args)
-{
-        return gk20a_mm_get_buffer_info(dev_from_gk20a(g), args->in.dmabuf_fd,
-                                        &args->out.id, &args->out.length);
-}
-
 static int nvgpu_gpu_get_cpu_time_correlation_info(
         struct gk20a *g,
         struct nvgpu_gpu_get_cpu_time_correlation_info_args *args)
@@ -1757,11 +1750,6 @@ long gk20a_ctrl_dev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg
                         (struct nvgpu_gpu_vsms_mapping *)buf);
                 break;
 
-        case NVGPU_GPU_IOCTL_GET_BUFFER_INFO:
-                err = gk20a_ctrl_get_buffer_info(g,
-                        (struct nvgpu_gpu_get_buffer_info_args *)buf);
-                break;
-
         case NVGPU_GPU_IOCTL_GET_CPU_TIME_CORRELATION_INFO:
                 err = nvgpu_gpu_get_cpu_time_correlation_info(g,
                         (struct nvgpu_gpu_get_cpu_time_correlation_info_args *)buf);