Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
[pandora-kernel.git] / drivers / gpu / drm / nouveau / nv50_graph.c
index b02a5b1..e25cbb4 100644 (file)
 #include "nouveau_grctx.h"
 #include "nouveau_dma.h"
 #include "nouveau_vm.h"
+#include "nouveau_ramht.h"
 #include "nv50_evo.h"
 
-static int  nv50_graph_register(struct drm_device *);
-static void nv50_graph_isr(struct drm_device *);
+struct nv50_graph_engine {
+       struct nouveau_exec_engine base;
+       u32 ctxprog[512];
+       u32 ctxprog_size;
+       u32 grctx_size;
+};
+
+static void
+nv50_graph_fifo_access(struct drm_device *dev, bool enabled)
+{
+       const uint32_t mask = 0x00010001;
+
+       if (enabled)
+               nv_wr32(dev, 0x400500, nv_rd32(dev, 0x400500) | mask);
+       else
+               nv_wr32(dev, 0x400500, nv_rd32(dev, 0x400500) & ~mask);
+}
+
+static struct nouveau_channel *
+nv50_graph_channel(struct drm_device *dev)
+{
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       uint32_t inst;
+       int i;
+
+       /* Be sure we're not in the middle of a context switch or bad things
+        * will happen, such as unloading the wrong pgraph context.
+        */
+       if (!nv_wait(dev, 0x400300, 0x00000001, 0x00000000))
+               NV_ERROR(dev, "Ctxprog is still running\n");
+
+       inst = nv_rd32(dev, NV50_PGRAPH_CTXCTL_CUR);
+       if (!(inst & NV50_PGRAPH_CTXCTL_CUR_LOADED))
+               return NULL;
+       inst = (inst & NV50_PGRAPH_CTXCTL_CUR_INSTANCE) << 12;
+
+       for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
+               struct nouveau_channel *chan = dev_priv->channels.ptr[i];
+
+               if (chan && chan->ramin && chan->ramin->vinst == inst)
+                       return chan;
+       }
+
+       return NULL;
+}
+
+static int
+nv50_graph_do_load_context(struct drm_device *dev, uint32_t inst)
+{
+       uint32_t fifo = nv_rd32(dev, 0x400500);
+
+       nv_wr32(dev, 0x400500, fifo & ~1);
+       nv_wr32(dev, 0x400784, inst);
+       nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x40);
+       nv_wr32(dev, 0x400320, nv_rd32(dev, 0x400320) | 0x11);
+       nv_wr32(dev, 0x400040, 0xffffffff);
+       (void)nv_rd32(dev, 0x400040);
+       nv_wr32(dev, 0x400040, 0x00000000);
+       nv_wr32(dev, 0x400304, nv_rd32(dev, 0x400304) | 1);
+
+       if (nouveau_wait_for_idle(dev))
+               nv_wr32(dev, 0x40032c, inst | (1<<31));
+       nv_wr32(dev, 0x400500, fifo);
+
+       return 0;
+}
+
+static int
+nv50_graph_unload_context(struct drm_device *dev)
+{
+       uint32_t inst;
+
+       inst  = nv_rd32(dev, NV50_PGRAPH_CTXCTL_CUR);
+       if (!(inst & NV50_PGRAPH_CTXCTL_CUR_LOADED))
+               return 0;
+       inst &= NV50_PGRAPH_CTXCTL_CUR_INSTANCE;
+
+       nouveau_wait_for_idle(dev);
+       nv_wr32(dev, 0x400784, inst);
+       nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x20);
+       nv_wr32(dev, 0x400304, nv_rd32(dev, 0x400304) | 0x01);
+       nouveau_wait_for_idle(dev);
+
+       nv_wr32(dev, NV50_PGRAPH_CTXCTL_CUR, inst);
+       return 0;
+}
 
 static void
 nv50_graph_init_reset(struct drm_device *dev)
@@ -52,7 +137,6 @@ nv50_graph_init_intr(struct drm_device *dev)
 {
        NV_DEBUG(dev, "\n");
 
-       nouveau_irq_register(dev, 12, nv50_graph_isr);
        nv_wr32(dev, NV03_PGRAPH_INTR, 0xffffffff);
        nv_wr32(dev, 0x400138, 0xffffffff);
        nv_wr32(dev, NV40_PGRAPH_INTR_EN, 0xffffffff);
@@ -135,34 +219,14 @@ nv50_graph_init_zcull(struct drm_device *dev)
 static int
 nv50_graph_init_ctxctl(struct drm_device *dev)
 {
-       struct drm_nouveau_private *dev_priv = dev->dev_private;
-       struct nouveau_grctx ctx = {};
-       uint32_t *cp;
+       struct nv50_graph_engine *pgraph = nv_engine(dev, NVOBJ_ENGINE_GR);
        int i;
 
        NV_DEBUG(dev, "\n");
 
-       cp = kmalloc(512 * 4, GFP_KERNEL);
-       if (!cp) {
-               NV_ERROR(dev, "failed to allocate ctxprog\n");
-               dev_priv->engine.graph.accel_blocked = true;
-               return 0;
-       }
-
-       ctx.dev = dev;
-       ctx.mode = NOUVEAU_GRCTX_PROG;
-       ctx.data = cp;
-       ctx.ctxprog_max = 512;
-       if (!nv50_grctx_init(&ctx)) {
-               dev_priv->engine.graph.grctx_size = ctx.ctxvals_pos * 4;
-
-               nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
-               for (i = 0; i < ctx.ctxprog_len; i++)
-                       nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, cp[i]);
-       } else {
-               dev_priv->engine.graph.accel_blocked = true;
-       }
-       kfree(cp);
+       nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
+       for (i = 0; i < pgraph->ctxprog_size; i++)
+               nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, pgraph->ctxprog[i]);
 
        nv_wr32(dev, 0x40008c, 0x00000004); /* HW_CTX_SWITCH_ENABLED */
        nv_wr32(dev, 0x400320, 4);
@@ -171,8 +235,8 @@ nv50_graph_init_ctxctl(struct drm_device *dev)
        return 0;
 }
 
-int
-nv50_graph_init(struct drm_device *dev)
+static int
+nv50_graph_init(struct drm_device *dev, int engine)
 {
        int ret;
 
@@ -186,105 +250,66 @@ nv50_graph_init(struct drm_device *dev)
        if (ret)
                return ret;
 
-       ret = nv50_graph_register(dev);
-       if (ret)
-               return ret;
        nv50_graph_init_intr(dev);
        return 0;
 }
 
-void
-nv50_graph_takedown(struct drm_device *dev)
+static int
+nv50_graph_fini(struct drm_device *dev, int engine)
 {
        NV_DEBUG(dev, "\n");
+       nv50_graph_unload_context(dev);
        nv_wr32(dev, 0x40013c, 0x00000000);
-       nouveau_irq_unregister(dev, 12);
-}
-
-void
-nv50_graph_fifo_access(struct drm_device *dev, bool enabled)
-{
-       const uint32_t mask = 0x00010001;
-
-       if (enabled)
-               nv_wr32(dev, 0x400500, nv_rd32(dev, 0x400500) | mask);
-       else
-               nv_wr32(dev, 0x400500, nv_rd32(dev, 0x400500) & ~mask);
-}
-
-struct nouveau_channel *
-nv50_graph_channel(struct drm_device *dev)
-{
-       struct drm_nouveau_private *dev_priv = dev->dev_private;
-       uint32_t inst;
-       int i;
-
-       /* Be sure we're not in the middle of a context switch or bad things
-        * will happen, such as unloading the wrong pgraph context.
-        */
-       if (!nv_wait(dev, 0x400300, 0x00000001, 0x00000000))
-               NV_ERROR(dev, "Ctxprog is still running\n");
-
-       inst = nv_rd32(dev, NV50_PGRAPH_CTXCTL_CUR);
-       if (!(inst & NV50_PGRAPH_CTXCTL_CUR_LOADED))
-               return NULL;
-       inst = (inst & NV50_PGRAPH_CTXCTL_CUR_INSTANCE) << 12;
-
-       for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
-               struct nouveau_channel *chan = dev_priv->channels.ptr[i];
-
-               if (chan && chan->ramin && chan->ramin->vinst == inst)
-                       return chan;
-       }
-
-       return NULL;
+       return 0;
 }
 
-int
-nv50_graph_create_context(struct nouveau_channel *chan)
+static int
+nv50_graph_context_new(struct nouveau_channel *chan, int engine)
 {
        struct drm_device *dev = chan->dev;
        struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct nouveau_gpuobj *ramin = chan->ramin;
-       struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
+       struct nouveau_gpuobj *grctx = NULL;
+       struct nv50_graph_engine *pgraph = nv_engine(dev, engine);
        struct nouveau_grctx ctx = {};
        int hdr, ret;
 
        NV_DEBUG(dev, "ch%d\n", chan->id);
 
-       ret = nouveau_gpuobj_new(dev, chan, pgraph->grctx_size, 0,
+       ret = nouveau_gpuobj_new(dev, NULL, pgraph->grctx_size, 0,
                                 NVOBJ_FLAG_ZERO_ALLOC |
-                                NVOBJ_FLAG_ZERO_FREE, &chan->ramin_grctx);
+                                NVOBJ_FLAG_ZERO_FREE, &grctx);
        if (ret)
                return ret;
 
        hdr = (dev_priv->chipset == 0x50) ? 0x200 : 0x20;
        nv_wo32(ramin, hdr + 0x00, 0x00190002);
-       nv_wo32(ramin, hdr + 0x04, chan->ramin_grctx->vinst +
-                                  pgraph->grctx_size - 1);
-       nv_wo32(ramin, hdr + 0x08, chan->ramin_grctx->vinst);
+       nv_wo32(ramin, hdr + 0x04, grctx->vinst + grctx->size - 1);
+       nv_wo32(ramin, hdr + 0x08, grctx->vinst);
        nv_wo32(ramin, hdr + 0x0c, 0);
        nv_wo32(ramin, hdr + 0x10, 0);
        nv_wo32(ramin, hdr + 0x14, 0x00010000);
 
        ctx.dev = chan->dev;
        ctx.mode = NOUVEAU_GRCTX_VALS;
-       ctx.data = chan->ramin_grctx;
+       ctx.data = grctx;
        nv50_grctx_init(&ctx);
 
-       nv_wo32(chan->ramin_grctx, 0x00000, chan->ramin->vinst >> 12);
+       nv_wo32(grctx, 0x00000, chan->ramin->vinst >> 12);
 
        dev_priv->engine.instmem.flush(dev);
-       atomic_inc(&chan->vm->pgraph_refs);
+
+       atomic_inc(&chan->vm->engref[NVOBJ_ENGINE_GR]);
+       chan->engctx[NVOBJ_ENGINE_GR] = grctx;
        return 0;
 }
 
-void
-nv50_graph_destroy_context(struct nouveau_channel *chan)
+static void
+nv50_graph_context_del(struct nouveau_channel *chan, int engine)
 {
+       struct nouveau_gpuobj *grctx = chan->engctx[engine];
        struct drm_device *dev = chan->dev;
        struct drm_nouveau_private *dev_priv = dev->dev_private;
-       struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
        struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
        int i, hdr = (dev_priv->chipset == 0x50) ? 0x200 : 0x20;
        unsigned long flags;
@@ -296,72 +321,49 @@ nv50_graph_destroy_context(struct nouveau_channel *chan)
 
        spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
        pfifo->reassign(dev, false);
-       pgraph->fifo_access(dev, false);
+       nv50_graph_fifo_access(dev, false);
 
-       if (pgraph->channel(dev) == chan)
-               pgraph->unload_context(dev);
+       if (nv50_graph_channel(dev) == chan)
+               nv50_graph_unload_context(dev);
 
        for (i = hdr; i < hdr + 24; i += 4)
                nv_wo32(chan->ramin, i, 0);
        dev_priv->engine.instmem.flush(dev);
 
-       pgraph->fifo_access(dev, true);
+       nv50_graph_fifo_access(dev, true);
        pfifo->reassign(dev, true);
        spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
 
-       nouveau_gpuobj_ref(NULL, &chan->ramin_grctx);
+       nouveau_gpuobj_ref(NULL, &grctx);
 
-       atomic_dec(&chan->vm->pgraph_refs);
+       atomic_dec(&chan->vm->engref[engine]);
+       chan->engctx[engine] = NULL;
 }
 
 static int
-nv50_graph_do_load_context(struct drm_device *dev, uint32_t inst)
-{
-       uint32_t fifo = nv_rd32(dev, 0x400500);
-
-       nv_wr32(dev, 0x400500, fifo & ~1);
-       nv_wr32(dev, 0x400784, inst);
-       nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x40);
-       nv_wr32(dev, 0x400320, nv_rd32(dev, 0x400320) | 0x11);
-       nv_wr32(dev, 0x400040, 0xffffffff);
-       (void)nv_rd32(dev, 0x400040);
-       nv_wr32(dev, 0x400040, 0x00000000);
-       nv_wr32(dev, 0x400304, nv_rd32(dev, 0x400304) | 1);
-
-       if (nouveau_wait_for_idle(dev))
-               nv_wr32(dev, 0x40032c, inst | (1<<31));
-       nv_wr32(dev, 0x400500, fifo);
-
-       return 0;
-}
-
-int
-nv50_graph_load_context(struct nouveau_channel *chan)
-{
-       uint32_t inst = chan->ramin->vinst >> 12;
-
-       NV_DEBUG(chan->dev, "ch%d\n", chan->id);
-       return nv50_graph_do_load_context(chan->dev, inst);
-}
-
-int
-nv50_graph_unload_context(struct drm_device *dev)
+nv50_graph_object_new(struct nouveau_channel *chan, int engine,
+                     u32 handle, u16 class)
 {
-       uint32_t inst;
+       struct drm_device *dev = chan->dev;
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nouveau_gpuobj *obj = NULL;
+       int ret;
 
-       inst  = nv_rd32(dev, NV50_PGRAPH_CTXCTL_CUR);
-       if (!(inst & NV50_PGRAPH_CTXCTL_CUR_LOADED))
-               return 0;
-       inst &= NV50_PGRAPH_CTXCTL_CUR_INSTANCE;
+       ret = nouveau_gpuobj_new(dev, chan, 16, 16, NVOBJ_FLAG_ZERO_FREE, &obj);
+       if (ret)
+               return ret;
+       obj->engine = 1;
+       obj->class  = class;
 
-       nouveau_wait_for_idle(dev);
-       nv_wr32(dev, 0x400784, inst);
-       nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) | 0x20);
-       nv_wr32(dev, 0x400304, nv_rd32(dev, 0x400304) | 0x01);
-       nouveau_wait_for_idle(dev);
+       nv_wo32(obj, 0x00, class);
+       nv_wo32(obj, 0x04, 0x00000000);
+       nv_wo32(obj, 0x08, 0x00000000);
+       nv_wo32(obj, 0x0c, 0x00000000);
+       dev_priv->engine.instmem.flush(dev);
 
-       nv_wr32(dev, NV50_PGRAPH_CTXCTL_CUR, inst);
-       return 0;
+       ret = nouveau_ramht_insert(chan, handle, obj);
+       nouveau_gpuobj_ref(NULL, &obj);
+       return ret;
 }
 
 static void
@@ -442,68 +444,15 @@ nv50_graph_nvsw_mthd_page_flip(struct nouveau_channel *chan,
        return 0;
 }
 
-static int
-nv50_graph_register(struct drm_device *dev)
-{
-       struct drm_nouveau_private *dev_priv = dev->dev_private;
-
-       if (dev_priv->engine.graph.registered)
-               return 0;
-
-       NVOBJ_CLASS(dev, 0x506e, SW); /* nvsw */
-       NVOBJ_MTHD (dev, 0x506e, 0x018c, nv50_graph_nvsw_dma_vblsem);
-       NVOBJ_MTHD (dev, 0x506e, 0x0400, nv50_graph_nvsw_vblsem_offset);
-       NVOBJ_MTHD (dev, 0x506e, 0x0404, nv50_graph_nvsw_vblsem_release_val);
-       NVOBJ_MTHD (dev, 0x506e, 0x0408, nv50_graph_nvsw_vblsem_release);
-       NVOBJ_MTHD (dev, 0x506e, 0x0500, nv50_graph_nvsw_mthd_page_flip);
-
-       NVOBJ_CLASS(dev, 0x0030, GR); /* null */
-       NVOBJ_CLASS(dev, 0x5039, GR); /* m2mf */
-       NVOBJ_CLASS(dev, 0x502d, GR); /* 2d */
-
-       /* tesla */
-       if (dev_priv->chipset == 0x50)
-               NVOBJ_CLASS(dev, 0x5097, GR); /* tesla (nv50) */
-       else
-       if (dev_priv->chipset < 0xa0)
-               NVOBJ_CLASS(dev, 0x8297, GR); /* tesla (nv8x/nv9x) */
-       else {
-               switch (dev_priv->chipset) {
-               case 0xa0:
-               case 0xaa:
-               case 0xac:
-                       NVOBJ_CLASS(dev, 0x8397, GR);
-                       break;
-               case 0xa3:
-               case 0xa5:
-               case 0xa8:
-                       NVOBJ_CLASS(dev, 0x8597, GR);
-                       break;
-               case 0xaf:
-                       NVOBJ_CLASS(dev, 0x8697, GR);
-                       break;
-               }
-       }
-
-       /* compute */
-       NVOBJ_CLASS(dev, 0x50c0, GR);
-       if (dev_priv->chipset  > 0xa0 &&
-           dev_priv->chipset != 0xaa &&
-           dev_priv->chipset != 0xac)
-               NVOBJ_CLASS(dev, 0x85c0, GR);
-
-       dev_priv->engine.graph.registered = true;
-       return 0;
-}
 
-void
-nv50_graph_tlb_flush(struct drm_device *dev)
+static void
+nv50_graph_tlb_flush(struct drm_device *dev, int engine)
 {
        nv50_vm_flush_engine(dev, 0);
 }
 
-void
-nv84_graph_tlb_flush(struct drm_device *dev)
+static void
+nv84_graph_tlb_flush(struct drm_device *dev, int engine)
 {
        struct drm_nouveau_private *dev_priv = dev->dev_private;
        struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
@@ -548,8 +497,7 @@ nv84_graph_tlb_flush(struct drm_device *dev)
        spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
 }
 
-static struct nouveau_enum nv50_mp_exec_error_names[] =
-{
+static struct nouveau_enum nv50_mp_exec_error_names[] = {
        { 3, "STACK_UNDERFLOW", NULL },
        { 4, "QUADON_ACTIVE", NULL },
        { 8, "TIMEOUT", NULL },
@@ -663,7 +611,7 @@ nv50_pgraph_mp_trap(struct drm_device *dev, int tpid, int display)
                        nv_rd32(dev, addr + 0x20);
                        pc = nv_rd32(dev, addr + 0x24);
                        oplow = nv_rd32(dev, addr + 0x70);
-                       ophigh= nv_rd32(dev, addr + 0x74);
+                       ophigh = nv_rd32(dev, addr + 0x74);
                        NV_INFO(dev, "PGRAPH_TRAP_MP_EXEC - "
                                        "TP %d MP %d: ", tpid, i);
                        nouveau_enum_print(nv50_mp_exec_error_names, status);
@@ -991,7 +939,7 @@ nv50_pgraph_trap_handler(struct drm_device *dev, u32 display, u64 inst, u32 chid
        return 1;
 }
 
-static int
+int
 nv50_graph_isr_chid(struct drm_device *dev, u64 inst)
 {
        struct drm_nouveau_private *dev_priv = dev->dev_private;
@@ -1073,3 +1021,101 @@ nv50_graph_isr(struct drm_device *dev)
        if (nv_rd32(dev, 0x400824) & (1 << 31))
                nv_wr32(dev, 0x400824, nv_rd32(dev, 0x400824) & ~(1 << 31));
 }
+
+static void
+nv50_graph_destroy(struct drm_device *dev, int engine)
+{
+       struct nv50_graph_engine *pgraph = nv_engine(dev, engine);
+
+       NVOBJ_ENGINE_DEL(dev, GR);
+
+       nouveau_irq_unregister(dev, 12);
+       kfree(pgraph);
+}
+
+int
+nv50_graph_create(struct drm_device *dev)
+{
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nv50_graph_engine *pgraph;
+       struct nouveau_grctx ctx = {};
+       int ret;
+
+       pgraph = kzalloc(sizeof(*pgraph),GFP_KERNEL);
+       if (!pgraph)
+               return -ENOMEM;
+
+       ctx.dev = dev;
+       ctx.mode = NOUVEAU_GRCTX_PROG;
+       ctx.data = pgraph->ctxprog;
+       ctx.ctxprog_max = ARRAY_SIZE(pgraph->ctxprog);
+
+       ret = nv50_grctx_init(&ctx);
+       if (ret) {
+               NV_ERROR(dev, "PGRAPH: ctxprog build failed\n");
+               kfree(pgraph);
+               return 0;
+       }
+
+       pgraph->grctx_size = ctx.ctxvals_pos * 4;
+       pgraph->ctxprog_size = ctx.ctxprog_len;
+
+       pgraph->base.destroy = nv50_graph_destroy;
+       pgraph->base.init = nv50_graph_init;
+       pgraph->base.fini = nv50_graph_fini;
+       pgraph->base.context_new = nv50_graph_context_new;
+       pgraph->base.context_del = nv50_graph_context_del;
+       pgraph->base.object_new = nv50_graph_object_new;
+       if (dev_priv->chipset == 0x50 || dev_priv->chipset == 0xac)
+               pgraph->base.tlb_flush = nv50_graph_tlb_flush;
+       else
+               pgraph->base.tlb_flush = nv84_graph_tlb_flush;
+
+       nouveau_irq_register(dev, 12, nv50_graph_isr);
+
+       /* NVSW really doesn't live here... */
+       NVOBJ_CLASS(dev, 0x506e, SW); /* nvsw */
+       NVOBJ_MTHD (dev, 0x506e, 0x018c, nv50_graph_nvsw_dma_vblsem);
+       NVOBJ_MTHD (dev, 0x506e, 0x0400, nv50_graph_nvsw_vblsem_offset);
+       NVOBJ_MTHD (dev, 0x506e, 0x0404, nv50_graph_nvsw_vblsem_release_val);
+       NVOBJ_MTHD (dev, 0x506e, 0x0408, nv50_graph_nvsw_vblsem_release);
+       NVOBJ_MTHD (dev, 0x506e, 0x0500, nv50_graph_nvsw_mthd_page_flip);
+
+       NVOBJ_ENGINE_ADD(dev, GR, &pgraph->base);
+       NVOBJ_CLASS(dev, 0x0030, GR); /* null */
+       NVOBJ_CLASS(dev, 0x5039, GR); /* m2mf */
+       NVOBJ_CLASS(dev, 0x502d, GR); /* 2d */
+
+       /* tesla */
+       if (dev_priv->chipset == 0x50)
+               NVOBJ_CLASS(dev, 0x5097, GR); /* tesla (nv50) */
+       else
+       if (dev_priv->chipset < 0xa0)
+               NVOBJ_CLASS(dev, 0x8297, GR); /* tesla (nv8x/nv9x) */
+       else {
+               switch (dev_priv->chipset) {
+               case 0xa0:
+               case 0xaa:
+               case 0xac:
+                       NVOBJ_CLASS(dev, 0x8397, GR);
+                       break;
+               case 0xa3:
+               case 0xa5:
+               case 0xa8:
+                       NVOBJ_CLASS(dev, 0x8597, GR);
+                       break;
+               case 0xaf:
+                       NVOBJ_CLASS(dev, 0x8697, GR);
+                       break;
+               }
+       }
+
+       /* compute */
+       NVOBJ_CLASS(dev, 0x50c0, GR);
+       if (dev_priv->chipset  > 0xa0 &&
+           dev_priv->chipset != 0xaa &&
+           dev_priv->chipset != 0xac)
+               NVOBJ_CLASS(dev, 0x85c0, GR);
+
+       return 0;
+}