drm/nve0/fifo: s/subfifo/PBDMA/

As per Android GK20A driver.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
index 7b718f6..46d4f49 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
@@ -401,7 +401,7 @@ static const struct nouveau_enum nve0_fifo_fault_gpcclient[] = {
        {}
 };
 
-static const struct nouveau_bitfield nve0_fifo_subfifo_intr[] = {
+static const struct nouveau_bitfield nve0_fifo_pbdma_intr[] = {
        { 0x00200000, "ILLEGAL_MTHD" },
        { 0x00800000, "EMPTY_SUBC" },
        {}
@@ -472,7 +472,7 @@ out:
 }
 
 static void
-nve0_fifo_isr_subfifo_intr(struct nve0_fifo_priv *priv, int unit)
+nve0_fifo_isr_pbdma_intr(struct nve0_fifo_priv *priv, int unit)
 {
        u32 stat = nv_rd32(priv, 0x040108 + (unit * 0x2000));
        u32 addr = nv_rd32(priv, 0x0400c0 + (unit * 0x2000));
@@ -488,11 +488,11 @@ nve0_fifo_isr_subfifo_intr(struct nve0_fifo_priv *priv, int unit)
        }
 
        if (show) {
-               nv_error(priv, "SUBFIFO%d:", unit);
-               nouveau_bitfield_print(nve0_fifo_subfifo_intr, show);
+               nv_error(priv, "PBDMA%d:", unit);
+               nouveau_bitfield_print(nve0_fifo_pbdma_intr, show);
                pr_cont("\n");
                nv_error(priv,
-                        "SUBFIFO%d: ch %d [%s] subc %d mthd 0x%04x data 0x%08x\n",
+                        "PBDMA%d: ch %d [%s] subc %d mthd 0x%04x data 0x%08x\n",
                         unit, chid,
                         nouveau_client_name_for_fifo_chid(&priv->base, chid),
                         subc, mthd, data);
@@ -530,16 +530,16 @@ nve0_fifo_intr(struct nouveau_subdev *subdev)
        }
 
        if (stat & 0x20000000) {
-               u32 units = nv_rd32(priv, 0x0025a0);
-               u32 u = units;
+               u32 mask = nv_rd32(priv, 0x0025a0);
+               u32 temp = mask;
 
-               while (u) {
-                       int i = ffs(u) - 1;
-                       nve0_fifo_isr_subfifo_intr(priv, i);
-                       u &= ~(1 << i);
+               while (temp) {
+                       u32 unit = ffs(temp) - 1;
+                       nve0_fifo_isr_pbdma_intr(priv, unit);
+                       temp &= ~(1 << unit);
                }
 
-               nv_wr32(priv, 0x0025a0, units);
+               nv_wr32(priv, 0x0025a0, mask);
                stat &= ~0x20000000;
        }
 
@@ -592,12 +592,12 @@ nve0_fifo_init(struct nouveau_object *object)
        if (ret)
                return ret;
 
-       /* enable all available PSUBFIFOs */
+       /* enable all available PBDMA units */
        nv_wr32(priv, 0x000204, 0xffffffff);
        priv->spoon_nr = hweight32(nv_rd32(priv, 0x000204));
-       nv_debug(priv, "%d subfifo(s)\n", priv->spoon_nr);
+       nv_debug(priv, "%d PBDMA unit(s)\n", priv->spoon_nr);
 
-       /* PSUBFIFO[n] */
+       /* PBDMA[n] */
        for (i = 0; i < priv->spoon_nr; i++) {
                nv_mask(priv, 0x04013c + (i * 0x2000), 0x10000100, 0x00000000);
                nv_wr32(priv, 0x040108 + (i * 0x2000), 0xffffffff); /* INTR */