drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET

[airlied: fix V_A_N_V to not be safe and fix check to make sure only r500
 - bump userspace version]
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/r100.c

@@ -3011,7 +3011,11 @@ int r100_cs_track_check(struct radeon_device *rdev, struct r100_cs_track *track)
 		}
 	}
 	prim_walk = (track->vap_vf_cntl >> 4) & 0x3;
-	nverts = (track->vap_vf_cntl >> 16) & 0xFFFF;
+	if (track->vap_vf_cntl & (1 << 14)) {
+		nverts = track->vap_alt_nverts;
+	} else {
+		nverts = (track->vap_vf_cntl >> 16) & 0xFFFF;
+	}
 	switch (prim_walk) {
 	case 1:
 		for (i = 0; i < track->num_arrays; i++) {

drivers/gpu/drm/radeon/r100_track.h

@@ -64,6 +64,7 @@ struct r100_cs_track {
 	unsigned			maxy;
 	unsigned			vtx_size;
 	unsigned			vap_vf_cntl;
+	unsigned			vap_alt_nverts;
 	unsigned			immd_dwords;
 	unsigned			num_arrays;
 	unsigned			max_indx;

drivers/gpu/drm/radeon/r300.c

@@ -729,6 +729,12 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		/* VAP_VF_MAX_VTX_INDX */
 		track->max_indx = idx_value & 0x00FFFFFFUL;
 		break;
+	case 0x2088:
+		/* VAP_ALT_NUM_VERTICES - only valid on r500 */
+		if (p->rdev->family < CHIP_RV515)
+			goto fail;
+		track->vap_alt_nverts = idx_value & 0xFFFFFF;
+		break;
 	case 0x43E4:
 		/* SC_SCISSOR1 */
 		track->maxy = ((idx_value >> 13) & 0x1FFF) + 1;
@@ -766,7 +772,6 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		tmp = idx_value & ~(0x7 << 16);
 		tmp |= tile_flags;
 		ib[idx] = tmp;
-
 		i = (reg - 0x4E38) >> 2;
 		track->cb[i].pitch = idx_value & 0x3FFE;
 		switch (((idx_value >> 21) & 0xF)) {
@@ -1051,11 +1056,13 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 			break;
 		/* fallthrough do not move */
 	default:
-		printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n",
-		       reg, idx);
-		return -EINVAL;
+		goto fail;
 	}
 	return 0;
+fail:
+	printk(KERN_ERR "Forbidden register 0x%04X in cs at %d\n",
+	       reg, idx);
+	return -EINVAL;
 }
 
 static int r300_packet3_check(struct radeon_cs_parser *p,

drivers/gpu/drm/radeon/radeon_drv.c

@@ -43,9 +43,10 @@
  * - 2.0.0 - initial interface
  * - 2.1.0 - add square tiling interface
  * - 2.2.0 - add r6xx/r7xx const buffer support
+ * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs
  */
 #define KMS_DRIVER_MAJOR	2
-#define KMS_DRIVER_MINOR	2
+#define KMS_DRIVER_MINOR	3
 #define KMS_DRIVER_PATCHLEVEL	0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);

drivers/gpu/drm/radeon/reg_srcs/rv515

@@ -35,6 +35,7 @@ rv515 0x6d40
 0x1DA8 VAP_VPORT_ZSCALE
 0x1DAC VAP_VPORT_ZOFFSET
 0x2080 VAP_CNTL
+0x208C VAP_INDEX_OFFSET
 0x2090 VAP_OUT_VTX_FMT_0
 0x2094 VAP_OUT_VTX_FMT_1
 0x20B0 VAP_VTE_CNTL