drm/nvc0-: support NOUVEAU_GETPARAM_GRAPH_UNITS

Signed-off-by: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index 5eb3e0da7c6e..1c4c6c9161ac 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -30,6 +30,7 @@
 #include <subdev/fb.h>
 #include <subdev/timer.h>
 #include <subdev/instmem.h>
+#include <engine/graph.h>
 
 #include "nouveau_drm.h"
 #include "nouveau_dma.h"
@@ -168,6 +169,7 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
         struct nouveau_drm *drm = nouveau_drm(dev);
         struct nouveau_device *device = nv_device(drm->device);
         struct nouveau_timer *ptimer = nouveau_timer(device);
+        struct nouveau_graph *graph = (void *)nouveau_engine(device, NVDEV_ENGINE_GR);
         struct drm_nouveau_getparam *getparam = data;
 
         switch (getparam->param) {
@@ -208,14 +210,8 @@ nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
                 getparam->value = 1;
                 break;
         case NOUVEAU_GETPARAM_GRAPH_UNITS:
-                /* NV40 and NV50 versions are quite different, but register
-                 * address is the same. User is supposed to know the card
-                 * family anyway... */
-                if (device->chipset >= 0x40) {
-                        getparam->value = nv_rd32(device, 0x001540);
-                        break;
-                }
-                /* FALLTHRU */
+                getparam->value = graph->units ? graph->units(graph) : 0;
+                break;
         default:
                 nv_debug(device, "unknown parameter %lld\n", getparam->param);
                 return -EINVAL;