drm/amdgpu: Use unsigned ring indices in amdgpu_queue_mgr_map

This matches the corresponding UAPI fields. Treating the ring index as
signed could result in accessing random unrelated memory if the MSB was
set.

Fixes: effd924d2f3b ("drm/amdgpu: untie user ring ids from kernel ring
                      ids v6")
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index c25cedf..0b14b53 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -717,7 +717,7 @@ int amdgpu_queue_mgr_fini(struct amdgpu_device *adev,
                          struct amdgpu_queue_mgr *mgr);
 int amdgpu_queue_mgr_map(struct amdgpu_device *adev,
                         struct amdgpu_queue_mgr *mgr,
-                        int hw_ip, int instance, int ring,
+                        u32 hw_ip, u32 instance, u32 ring,
                         struct amdgpu_ring **out_ring);
 
 /*

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
index 190e28c..93d8661 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_queue_mgr.c
@@ -63,7 +63,7 @@ static int amdgpu_update_cached_map(struct amdgpu_queue_mapper *mapper,
 
 static int amdgpu_identity_map(struct amdgpu_device *adev,
                               struct amdgpu_queue_mapper *mapper,
-                              int ring,
+                              u32 ring,
                               struct amdgpu_ring **out_ring)
 {
        switch (mapper->hw_ip) {
@@ -121,7 +121,7 @@ static enum amdgpu_ring_type amdgpu_hw_ip_to_ring_type(int hw_ip)
 
 static int amdgpu_lru_map(struct amdgpu_device *adev,
                          struct amdgpu_queue_mapper *mapper,
-                         int user_ring, bool lru_pipe_order,
+                         u32 user_ring, bool lru_pipe_order,
                          struct amdgpu_ring **out_ring)
 {
        int r, i, j;
@@ -208,7 +208,7 @@ int amdgpu_queue_mgr_fini(struct amdgpu_device *adev,
  */
 int amdgpu_queue_mgr_map(struct amdgpu_device *adev,
                         struct amdgpu_queue_mgr *mgr,
-                        int hw_ip, int instance, int ring,
+                        u32 hw_ip, u32 instance, u32 ring,
                         struct amdgpu_ring **out_ring)
 {
        int r, ip_num_rings;