drm/nv20: Add Z compression support.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Tested-by: Xavier Chantry <chantry.xavier@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_reg.h b/drivers/gpu/drm/nouveau/nouveau_reg.h
index b6384d36d5d0..df3a87e792f2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_reg.h
+++ b/drivers/gpu/drm/nouveau/nouveau_reg.h
@@ -45,6 +45,11 @@
 #       define NV04_PFB_REF_CMD_REFRESH                         (1 << 0)
 #define NV04_PFB_PRE                                            0x001002d4
 #       define NV04_PFB_PRE_CMD_PRECHARGE                       (1 << 0)
+#define NV20_PFB_ZCOMP(i)                              (0x00100300 + 4*(i))
+#       define NV20_PFB_ZCOMP_MODE_32                           (4 << 24)
+#       define NV20_PFB_ZCOMP_EN                                (1 << 31)
+#       define NV25_PFB_ZCOMP_MODE_16                           (1 << 20)
+#       define NV25_PFB_ZCOMP_MODE_32                           (2 << 20)
 #define NV10_PFB_CLOSE_PAGE2                                    0x0010033c
 #define NV04_PFB_SCRAMBLE(i)                         (0x00100400 + 4 * (i))
 #define NV40_PFB_TILE(i)                              (0x00100600 + (i*16))
@@ -379,6 +384,7 @@
 #define NV20_PGRAPH_TLIMIT(i)                              (0x00400904 + (i*16))
 #define NV20_PGRAPH_TSIZE(i)                               (0x00400908 + (i*16))
 #define NV20_PGRAPH_TSTATUS(i)                             (0x0040090C + (i*16))
+#define NV20_PGRAPH_ZCOMP(i)                               (0x00400980 + 4*(i))
 #define NV10_PGRAPH_TILE(i)                                (0x00400B00 + (i*16))
 #define NV10_PGRAPH_TLIMIT(i)                              (0x00400B04 + (i*16))
 #define NV10_PGRAPH_TSIZE(i)                               (0x00400B08 + (i*16))