drm/amdgpu: add missing documentation on new module parameters

New parameters added for navi lack documentation.

Reviewed-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 1e44922ac5921cdead0cdbdb4ce21e196a6d22c6..1b0613c7cf9564d3694a88f5e7e0d830a3bc4188 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -582,14 +582,27 @@ MODULE_PARM_DESC(async_gfx_ring,
        "Asynchronous GFX rings that could be configured with either different priorities (HP3D ring and LP3D ring), or equal priorities (0 = disabled, 1 = enabled (default))");
 module_param_named(async_gfx_ring, amdgpu_async_gfx_ring, int, 0444);
 
+/**
+ * DOC: mcbp (int)
+ * It is used to enable mid command buffer preemption. (0 = disabled (default), 1 = enabled)
+ */
 MODULE_PARM_DESC(mcbp,
        "Enable Mid-command buffer preemption (0 = disabled (default), 1 = enabled)");
 module_param_named(mcbp, amdgpu_mcbp, int, 0444);
 
+/**
+ * DOC: discovery (int)
+ * Allow driver to discover hardware IP information from IP Discovery table at the top of VRAM.
+ */
 MODULE_PARM_DESC(discovery,
        "Allow driver to discover hardware IPs from IP Discovery table at the top of VRAM");
 module_param_named(discovery, amdgpu_discovery, int, 0444);
 
+/**
+ * DOC: mes (int)
+ * Enable Micro Engine Scheduler. This is a new hw scheduling engine for gfx, sdma, and compute.
+ * (0 = disabled (default), 1 = enabled)
+ */
 MODULE_PARM_DESC(mes,
        "Enable Micro Engine Scheduler (0 = disabled (default), 1 = enabled)");
 module_param_named(mes, amdgpu_mes, int, 0444);