drm/amdkfd: Implement image tiling mode support v2
v2: Removed hole in ioctl number space
Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 7436d34..e4a8c2e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -883,6 +883,46 @@ static int kfd_ioctl_set_scratch_backing_va(struct file *filep,
return err;
}
+static int kfd_ioctl_get_tile_config(struct file *filep,
+ struct kfd_process *p, void *data)
+{
+ struct kfd_ioctl_get_tile_config_args *args = data;
+ struct kfd_dev *dev;
+ struct tile_config config;
+ int err = 0;
+
+ dev = kfd_device_by_id(args->gpu_id);
+
+ dev->kfd2kgd->get_tile_config(dev->kgd, &config);
+
+ args->gb_addr_config = config.gb_addr_config;
+ args->num_banks = config.num_banks;
+ args->num_ranks = config.num_ranks;
+
+ if (args->num_tile_configs > config.num_tile_configs)
+ args->num_tile_configs = config.num_tile_configs;
+ err = copy_to_user((void __user *)args->tile_config_ptr,
+ config.tile_config_ptr,
+ args->num_tile_configs * sizeof(uint32_t));
+ if (err) {
+ args->num_tile_configs = 0;
+ return -EFAULT;
+ }
+
+ if (args->num_macro_tile_configs > config.num_macro_tile_configs)
+ args->num_macro_tile_configs =
+ config.num_macro_tile_configs;
+ err = copy_to_user((void __user *)args->macro_tile_config_ptr,
+ config.macro_tile_config_ptr,
+ args->num_macro_tile_configs * sizeof(uint32_t));
+ if (err) {
+ args->num_macro_tile_configs = 0;
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
#define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \
[_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, \
.cmd_drv = 0, .name = #ioctl}
@@ -939,6 +979,9 @@ static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = {
AMDKFD_IOCTL_DEF(AMDKFD_IOC_SET_SCRATCH_BACKING_VA,
kfd_ioctl_set_scratch_backing_va, 0),
+
+ AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_TILE_CONFIG,
+ kfd_ioctl_get_tile_config, 0)
};
#define AMDKFD_CORE_IOCTL_COUNT ARRAY_SIZE(amdkfd_ioctls)