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authorBen Skeggs <bskeggs@redhat.com>2019-02-12 22:28:13 +1000
committerBen Skeggs <bskeggs@redhat.com>2019-02-20 08:59:59 +1000
commit0b89ca0dc34446b473000f4bc2906a58876d78b0 (patch)
tree7b8f007413c1308418097fbabb1d1fe3b8486eea /drivers/gpu/drm/nouveau
parenteb383e629c6f4e771e0d8869348f68de02c4a1a2 (diff)
downloadlinux-0b89ca0dc34446b473000f4bc2906a58876d78b0.tar.bz2
drm/nouveau/gr/gf100-: move fecs discover_image_size into a function
Makes the code somewhat less magic. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c29
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
index 05cdfb7d1f85..6c045f26260d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
@@ -715,6 +715,22 @@ gf100_gr_pack_mmio[] = {
* PGRAPH engine/subdev functions
******************************************************************************/
+static int
+gf100_gr_fecs_discover_image_size(struct gf100_gr *gr, u32 *psize)
+{
+ struct nvkm_device *device = gr->base.engine.subdev.device;
+
+ nvkm_wr32(device, 0x409840, 0xffffffff);
+ nvkm_wr32(device, 0x409500, 0x00000000);
+ nvkm_wr32(device, 0x409504, 0x00000010);
+ nvkm_msec(device, 2000,
+ if ((*psize = nvkm_rd32(device, 0x409800)))
+ return 0;
+ );
+
+ return -ETIMEDOUT;
+}
+
static void
gf100_gr_fecs_set_watchdog_timeout(struct gf100_gr *gr, u32 timeout)
{
@@ -1497,6 +1513,7 @@ gf100_gr_init_ctxctl_ext(struct gf100_gr *gr)
struct nvkm_device *device = subdev->device;
struct nvkm_secboot *sb = device->secboot;
u32 secboot_mask = 0;
+ int ret;
/* load fuc microcode */
nvkm_mc_unk260(device, 0);
@@ -1536,14 +1553,10 @@ gf100_gr_init_ctxctl_ext(struct gf100_gr *gr)
gf100_gr_fecs_set_watchdog_timeout(gr, 0x7fffffff);
- nvkm_wr32(device, 0x409840, 0xffffffff);
- nvkm_wr32(device, 0x409500, 0x00000000);
- nvkm_wr32(device, 0x409504, 0x00000010);
- if (nvkm_msec(device, 2000,
- if ((gr->size = nvkm_rd32(device, 0x409800)))
- break;
- ) < 0)
- return -EBUSY;
+ /* Determine how much memory is required to store main context image. */
+ ret = gf100_gr_fecs_discover_image_size(gr, &gr->size);
+ if (ret)
+ return ret;
nvkm_wr32(device, 0x409840, 0xffffffff);
nvkm_wr32(device, 0x409500, 0x00000000);