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linux/drivers/gpu/drm/nouveau/nv40_graph.c
Ben Skeggs 1dc32671d8 drm/nv40: fix tiling-related setup for a number of chipsets 
Due to the default case handling the older chipsets, a bunch of the newer
ones ended up having the wrong tiling regs used.  This commit switches the
default case to handle the newest chipsets.

This also makes nv4e touch the "extra" tiling regs.  "nv" doesn't touch
them for C51 but traces of the NVIDIA binary driver show it being done
there.

I couldn't find NV41/NV45 traces to confirm the behaviour there, but an
educated guess was taken at each of them.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-02-17 09:40:34 +10:00

540 lines
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/*
* Copyright (C) 2007 Ben Skeggs.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "drmP.h"
#include "drm.h"
#include "nouveau_drv.h"
#include "nouveau_grctx.h"
static int nv40_graph_register(struct drm_device *);
static void nv40_graph_isr(struct drm_device *);
struct nouveau_channel *
nv40_graph_channel(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
uint32_t inst;
int i;
inst = nv_rd32(dev, NV40_PGRAPH_CTXCTL_CUR);
if (!(inst & NV40_PGRAPH_CTXCTL_CUR_LOADED))
return NULL;
inst = (inst & NV40_PGRAPH_CTXCTL_CUR_INSTANCE) << 4;
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
struct nouveau_channel *chan = dev_priv->channels.ptr[i];
if (chan && chan->ramin_grctx &&
chan->ramin_grctx->pinst == inst)
return chan;
}
return NULL;
}
int
nv40_graph_create_context(struct nouveau_channel *chan)
{
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_grctx ctx = {};
unsigned long flags;
int ret;
ret = nouveau_gpuobj_new(dev, chan, pgraph->grctx_size, 16,
NVOBJ_FLAG_ZERO_ALLOC, &chan->ramin_grctx);
if (ret)
return ret;
/* Initialise default context values */
ctx.dev = chan->dev;
ctx.mode = NOUVEAU_GRCTX_VALS;
ctx.data = chan->ramin_grctx;
nv40_grctx_init(&ctx);
nv_wo32(chan->ramin_grctx, 0, chan->ramin_grctx->pinst);
/* init grctx pointer in ramfc, and on PFIFO if channel is
* already active there
*/
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
nv_wo32(chan->ramfc, 0x38, chan->ramin_grctx->pinst >> 4);
nv_mask(dev, 0x002500, 0x00000001, 0x00000000);
if ((nv_rd32(dev, 0x003204) & 0x0000001f) == chan->id)
nv_wr32(dev, 0x0032e0, chan->ramin_grctx->pinst >> 4);
nv_mask(dev, 0x002500, 0x00000001, 0x00000001);
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
return 0;
}
void
nv40_graph_destroy_context(struct nouveau_channel *chan)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
unsigned long flags;
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
pgraph->fifo_access(dev, false);
/* Unload the context if it's the currently active one */
if (pgraph->channel(dev) == chan)
pgraph->unload_context(dev);
pgraph->fifo_access(dev, true);
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
/* Free the context resources */
nouveau_gpuobj_ref(NULL, &chan->ramin_grctx);
}
static int
nv40_graph_transfer_context(struct drm_device *dev, uint32_t inst, int save)
{
uint32_t old_cp, tv = 1000, tmp;
int i;
old_cp = nv_rd32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER);
nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, inst);
tmp = nv_rd32(dev, NV40_PGRAPH_CTXCTL_0310);
tmp |= save ? NV40_PGRAPH_CTXCTL_0310_XFER_SAVE :
NV40_PGRAPH_CTXCTL_0310_XFER_LOAD;
nv_wr32(dev, NV40_PGRAPH_CTXCTL_0310, tmp);
tmp = nv_rd32(dev, NV40_PGRAPH_CTXCTL_0304);
tmp |= NV40_PGRAPH_CTXCTL_0304_XFER_CTX;
nv_wr32(dev, NV40_PGRAPH_CTXCTL_0304, tmp);
nouveau_wait_for_idle(dev);
for (i = 0; i < tv; i++) {
if (nv_rd32(dev, NV40_PGRAPH_CTXCTL_030C) == 0)
break;
}
nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, old_cp);
if (i == tv) {
uint32_t ucstat = nv_rd32(dev, NV40_PGRAPH_CTXCTL_UCODE_STAT);
NV_ERROR(dev, "Failed: Instance=0x%08x Save=%d\n", inst, save);
NV_ERROR(dev, "IP: 0x%02x, Opcode: 0x%08x\n",
ucstat >> NV40_PGRAPH_CTXCTL_UCODE_STAT_IP_SHIFT,
ucstat & NV40_PGRAPH_CTXCTL_UCODE_STAT_OP_MASK);
NV_ERROR(dev, "0x40030C = 0x%08x\n",
nv_rd32(dev, NV40_PGRAPH_CTXCTL_030C));
return -EBUSY;
}
return 0;
}
/* Restore the context for a specific channel into PGRAPH */
int
nv40_graph_load_context(struct nouveau_channel *chan)
{
struct drm_device *dev = chan->dev;
uint32_t inst;
int ret;
if (!chan->ramin_grctx)
return -EINVAL;
inst = chan->ramin_grctx->pinst >> 4;
ret = nv40_graph_transfer_context(dev, inst, 0);
if (ret)
return ret;
/* 0x40032C, no idea of it's exact function. Could simply be a
* record of the currently active PGRAPH context. It's currently
* unknown as to what bit 24 does. The nv ddx has it set, so we will
* set it here too.
*/
nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, inst);
nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR,
(inst & NV40_PGRAPH_CTXCTL_CUR_INSTANCE) |
NV40_PGRAPH_CTXCTL_CUR_LOADED);
/* 0x32E0 records the instance address of the active FIFO's PGRAPH
* context. If at any time this doesn't match 0x40032C, you will
* recieve PGRAPH_INTR_CONTEXT_SWITCH
*/
nv_wr32(dev, NV40_PFIFO_GRCTX_INSTANCE, inst);
return 0;
}
int
nv40_graph_unload_context(struct drm_device *dev)
{
uint32_t inst;
int ret;
inst = nv_rd32(dev, NV40_PGRAPH_CTXCTL_CUR);
if (!(inst & NV40_PGRAPH_CTXCTL_CUR_LOADED))
return 0;
inst &= NV40_PGRAPH_CTXCTL_CUR_INSTANCE;
ret = nv40_graph_transfer_context(dev, inst, 1);
nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, inst);
return ret;
}
void
nv40_graph_set_tile_region(struct drm_device *dev, int i)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_tile_reg *tile = &dev_priv->tile.reg[i];
switch (dev_priv->chipset) {
case 0x40:
case 0x41: /* guess */
case 0x42:
case 0x43:
case 0x45: /* guess */
case 0x4e:
nv_wr32(dev, NV20_PGRAPH_TSIZE(i), tile->pitch);
nv_wr32(dev, NV20_PGRAPH_TLIMIT(i), tile->limit);
nv_wr32(dev, NV20_PGRAPH_TILE(i), tile->addr);
nv_wr32(dev, NV40_PGRAPH_TSIZE1(i), tile->pitch);
nv_wr32(dev, NV40_PGRAPH_TLIMIT1(i), tile->limit);
nv_wr32(dev, NV40_PGRAPH_TILE1(i), tile->addr);
break;
case 0x44:
case 0x4a:
nv_wr32(dev, NV20_PGRAPH_TSIZE(i), tile->pitch);
nv_wr32(dev, NV20_PGRAPH_TLIMIT(i), tile->limit);
nv_wr32(dev, NV20_PGRAPH_TILE(i), tile->addr);
break;
case 0x46:
case 0x47:
case 0x49:
case 0x4b:
case 0x4c:
case 0x67:
default:
nv_wr32(dev, NV47_PGRAPH_TSIZE(i), tile->pitch);
nv_wr32(dev, NV47_PGRAPH_TLIMIT(i), tile->limit);
nv_wr32(dev, NV47_PGRAPH_TILE(i), tile->addr);
nv_wr32(dev, NV40_PGRAPH_TSIZE1(i), tile->pitch);
nv_wr32(dev, NV40_PGRAPH_TLIMIT1(i), tile->limit);
nv_wr32(dev, NV40_PGRAPH_TILE1(i), tile->addr);
break;
}
}
/*
* G70 0x47
* G71 0x49
* NV45 0x48
* G72[M] 0x46
* G73 0x4b
* C51_G7X 0x4c
* C51 0x4e
*/
int
nv40_graph_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv =
(struct drm_nouveau_private *)dev->dev_private;
struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
struct nouveau_grctx ctx = {};
uint32_t vramsz, *cp;
int ret, i, j;
nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) &
~NV_PMC_ENABLE_PGRAPH);
nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) |
NV_PMC_ENABLE_PGRAPH);
cp = kmalloc(sizeof(*cp) * 256, GFP_KERNEL);
if (!cp)
return -ENOMEM;
ctx.dev = dev;
ctx.mode = NOUVEAU_GRCTX_PROG;
ctx.data = cp;
ctx.ctxprog_max = 256;
nv40_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]);
kfree(cp);
ret = nv40_graph_register(dev);
if (ret)
return ret;
/* No context present currently */
nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, 0x00000000);
nouveau_irq_register(dev, 12, nv40_graph_isr);
nv_wr32(dev, NV03_PGRAPH_INTR , 0xFFFFFFFF);
nv_wr32(dev, NV40_PGRAPH_INTR_EN, 0xFFFFFFFF);
nv_wr32(dev, NV04_PGRAPH_DEBUG_0, 0xFFFFFFFF);
nv_wr32(dev, NV04_PGRAPH_DEBUG_0, 0x00000000);
nv_wr32(dev, NV04_PGRAPH_DEBUG_1, 0x401287c0);
nv_wr32(dev, NV04_PGRAPH_DEBUG_3, 0xe0de8055);
nv_wr32(dev, NV10_PGRAPH_DEBUG_4, 0x00008000);
nv_wr32(dev, NV04_PGRAPH_LIMIT_VIOL_PIX, 0x00be3c5f);
nv_wr32(dev, NV10_PGRAPH_CTX_CONTROL, 0x10010100);
nv_wr32(dev, NV10_PGRAPH_STATE , 0xFFFFFFFF);
j = nv_rd32(dev, 0x1540) & 0xff;
if (j) {
for (i = 0; !(j & 1); j >>= 1, i++)
;
nv_wr32(dev, 0x405000, i);
}
if (dev_priv->chipset == 0x40) {
nv_wr32(dev, 0x4009b0, 0x83280fff);
nv_wr32(dev, 0x4009b4, 0x000000a0);
} else {
nv_wr32(dev, 0x400820, 0x83280eff);
nv_wr32(dev, 0x400824, 0x000000a0);
}
switch (dev_priv->chipset) {
case 0x40:
case 0x45:
nv_wr32(dev, 0x4009b8, 0x0078e366);
nv_wr32(dev, 0x4009bc, 0x0000014c);
break;
case 0x41:
case 0x42: /* pciid also 0x00Cx */
/* case 0x0120: XXX (pciid) */
nv_wr32(dev, 0x400828, 0x007596ff);
nv_wr32(dev, 0x40082c, 0x00000108);
break;
case 0x43:
nv_wr32(dev, 0x400828, 0x0072cb77);
nv_wr32(dev, 0x40082c, 0x00000108);
break;
case 0x44:
case 0x46: /* G72 */
case 0x4a:
case 0x4c: /* G7x-based C51 */
case 0x4e:
nv_wr32(dev, 0x400860, 0);
nv_wr32(dev, 0x400864, 0);
break;
case 0x47: /* G70 */
case 0x49: /* G71 */
case 0x4b: /* G73 */
nv_wr32(dev, 0x400828, 0x07830610);
nv_wr32(dev, 0x40082c, 0x0000016A);
break;
default:
break;
}
nv_wr32(dev, 0x400b38, 0x2ffff800);
nv_wr32(dev, 0x400b3c, 0x00006000);
/* Tiling related stuff. */
switch (dev_priv->chipset) {
case 0x44:
case 0x4a:
nv_wr32(dev, 0x400bc4, 0x1003d888);
nv_wr32(dev, 0x400bbc, 0xb7a7b500);
break;
case 0x46:
nv_wr32(dev, 0x400bc4, 0x0000e024);
nv_wr32(dev, 0x400bbc, 0xb7a7b520);
break;
case 0x4c:
case 0x4e:
case 0x67:
nv_wr32(dev, 0x400bc4, 0x1003d888);
nv_wr32(dev, 0x400bbc, 0xb7a7b540);
break;
default:
break;
}
/* Turn all the tiling regions off. */
for (i = 0; i < pfb->num_tiles; i++)
nv40_graph_set_tile_region(dev, i);
/* begin RAM config */
vramsz = pci_resource_len(dev->pdev, 0) - 1;
switch (dev_priv->chipset) {
case 0x40:
nv_wr32(dev, 0x4009A4, nv_rd32(dev, NV04_PFB_CFG0));
nv_wr32(dev, 0x4009A8, nv_rd32(dev, NV04_PFB_CFG1));
nv_wr32(dev, 0x4069A4, nv_rd32(dev, NV04_PFB_CFG0));
nv_wr32(dev, 0x4069A8, nv_rd32(dev, NV04_PFB_CFG1));
nv_wr32(dev, 0x400820, 0);
nv_wr32(dev, 0x400824, 0);
nv_wr32(dev, 0x400864, vramsz);
nv_wr32(dev, 0x400868, vramsz);
break;
default:
switch (dev_priv->chipset) {
case 0x41:
case 0x42:
case 0x43:
case 0x45:
case 0x4e:
case 0x44:
case 0x4a:
nv_wr32(dev, 0x4009F0, nv_rd32(dev, NV04_PFB_CFG0));
nv_wr32(dev, 0x4009F4, nv_rd32(dev, NV04_PFB_CFG1));
break;
default:
nv_wr32(dev, 0x400DF0, nv_rd32(dev, NV04_PFB_CFG0));
nv_wr32(dev, 0x400DF4, nv_rd32(dev, NV04_PFB_CFG1));
break;
}
nv_wr32(dev, 0x4069F0, nv_rd32(dev, NV04_PFB_CFG0));
nv_wr32(dev, 0x4069F4, nv_rd32(dev, NV04_PFB_CFG1));
nv_wr32(dev, 0x400840, 0);
nv_wr32(dev, 0x400844, 0);
nv_wr32(dev, 0x4008A0, vramsz);
nv_wr32(dev, 0x4008A4, vramsz);
break;
}
return 0;
}
void nv40_graph_takedown(struct drm_device *dev)
{
nouveau_irq_unregister(dev, 12);
}
static int
nv40_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_CLASS(dev, 0x0030, GR); /* null */
NVOBJ_CLASS(dev, 0x0039, GR); /* m2mf */
NVOBJ_CLASS(dev, 0x004a, GR); /* gdirect */
NVOBJ_CLASS(dev, 0x009f, GR); /* imageblit (nv12) */
NVOBJ_CLASS(dev, 0x008a, GR); /* ifc */
NVOBJ_CLASS(dev, 0x0089, GR); /* sifm */
NVOBJ_CLASS(dev, 0x3089, GR); /* sifm (nv40) */
NVOBJ_CLASS(dev, 0x0062, GR); /* surf2d */
NVOBJ_CLASS(dev, 0x3062, GR); /* surf2d (nv40) */
NVOBJ_CLASS(dev, 0x0043, GR); /* rop */
NVOBJ_CLASS(dev, 0x0012, GR); /* beta1 */
NVOBJ_CLASS(dev, 0x0072, GR); /* beta4 */
NVOBJ_CLASS(dev, 0x0019, GR); /* cliprect */
NVOBJ_CLASS(dev, 0x0044, GR); /* pattern */
NVOBJ_CLASS(dev, 0x309e, GR); /* swzsurf */
/* curie */
if (nv44_graph_class(dev))
NVOBJ_CLASS(dev, 0x4497, GR);
else
NVOBJ_CLASS(dev, 0x4097, GR);
/* nvsw */
NVOBJ_CLASS(dev, 0x506e, SW);
NVOBJ_MTHD (dev, 0x506e, 0x0500, nv04_graph_mthd_page_flip);
dev_priv->engine.graph.registered = true;
return 0;
}
static int
nv40_graph_isr_chid(struct drm_device *dev, u32 inst)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan;
unsigned long flags;
int i;
spin_lock_irqsave(&dev_priv->channels.lock, flags);
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
chan = dev_priv->channels.ptr[i];
if (!chan || !chan->ramin_grctx)
continue;
if (inst == chan->ramin_grctx->pinst)
break;
}
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
return i;
}
static void
nv40_graph_isr(struct drm_device *dev)
{
u32 stat;
while ((stat = nv_rd32(dev, NV03_PGRAPH_INTR))) {
u32 nsource = nv_rd32(dev, NV03_PGRAPH_NSOURCE);
u32 nstatus = nv_rd32(dev, NV03_PGRAPH_NSTATUS);
u32 inst = (nv_rd32(dev, 0x40032c) & 0x000fffff) << 4;
u32 chid = nv40_graph_isr_chid(dev, inst);
u32 addr = nv_rd32(dev, NV04_PGRAPH_TRAPPED_ADDR);
u32 subc = (addr & 0x00070000) >> 16;
u32 mthd = (addr & 0x00001ffc);
u32 data = nv_rd32(dev, NV04_PGRAPH_TRAPPED_DATA);
u32 class = nv_rd32(dev, 0x400160 + subc * 4) & 0xffff;
u32 show = stat;
if (stat & NV_PGRAPH_INTR_ERROR) {
if (nsource & NV03_PGRAPH_NSOURCE_ILLEGAL_MTHD) {
if (!nouveau_gpuobj_mthd_call2(dev, chid, class, mthd, data))
show &= ~NV_PGRAPH_INTR_ERROR;
} else
if (nsource & NV03_PGRAPH_NSOURCE_DMA_VTX_PROTECTION) {
nv_mask(dev, 0x402000, 0, 0);
}
}
nv_wr32(dev, NV03_PGRAPH_INTR, stat);
nv_wr32(dev, NV04_PGRAPH_FIFO, 0x00000001);
if (show && nouveau_ratelimit()) {
NV_INFO(dev, "PGRAPH -");
nouveau_bitfield_print(nv10_graph_intr, show);
printk(" nsource:");
nouveau_bitfield_print(nv04_graph_nsource, nsource);
printk(" nstatus:");
nouveau_bitfield_print(nv10_graph_nstatus, nstatus);
printk("\n");
NV_INFO(dev, "PGRAPH - ch %d (0x%08x) subc %d "
"class 0x%04x mthd 0x%04x data 0x%08x\n",
chid, inst, subc, class, mthd, data);
}
}
}
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