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drm/nouveau/device: simplify subdev construction

Browse source 
Replaces the piece-by-piece (in response to NV_DEVICE ctor args) device
contruction with a once-off all-or-nothing approach, eliminating some
tricky refcounting issues.  The partial device init capability was only
required by some tools, and has been moved to probe time instead.

Temporarily removes a workaround for some boards where we need to fiddle
with AGP registers before executing the DEVINIT scripts.  A later commit
in this series reinstates it.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2015-08-20 14:54:15 +10:00
parent c813d8e048
commit 0ac9d210a1
4 changed files with 218 additions and 339 deletions
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23
drivers/gpu/drm/nouveau/include/nvif/class.h
View file

@ -126,29 +126,6 @@ struct nv_device_v0 {
__u8 version;
__u8 pad01[7];
__u64 device; /* device identifier, ~0 for client default */
#define NV_DEVICE_V0_DISABLE_IDENTIFY 0x0000000000000001ULL
#define NV_DEVICE_V0_DISABLE_MMIO 0x0000000000000002ULL
#define NV_DEVICE_V0_DISABLE_VBIOS 0x0000000000000004ULL
#define NV_DEVICE_V0_DISABLE_CORE 0x0000000000000008ULL
#define NV_DEVICE_V0_DISABLE_DISP 0x0000000000010000ULL
#define NV_DEVICE_V0_DISABLE_FIFO 0x0000000000020000ULL
#define NV_DEVICE_V0_DISABLE_GR 0x0000000100000000ULL
#define NV_DEVICE_V0_DISABLE_MPEG 0x0000000200000000ULL
#define NV_DEVICE_V0_DISABLE_ME 0x0000000400000000ULL
#define NV_DEVICE_V0_DISABLE_VP 0x0000000800000000ULL
#define NV_DEVICE_V0_DISABLE_CIPHER 0x0000001000000000ULL
#define NV_DEVICE_V0_DISABLE_BSP 0x0000002000000000ULL
#define NV_DEVICE_V0_DISABLE_MSPPP 0x0000004000000000ULL
#define NV_DEVICE_V0_DISABLE_CE0 0x0000008000000000ULL
#define NV_DEVICE_V0_DISABLE_CE1 0x0000010000000000ULL
#define NV_DEVICE_V0_DISABLE_VIC 0x0000020000000000ULL
#define NV_DEVICE_V0_DISABLE_MSENC 0x0000040000000000ULL
#define NV_DEVICE_V0_DISABLE_CE2 0x0000080000000000ULL
#define NV_DEVICE_V0_DISABLE_MSVLD 0x0000100000000000ULL
#define NV_DEVICE_V0_DISABLE_SEC 0x0000200000000000ULL
#define NV_DEVICE_V0_DISABLE_MSPDEC 0x0000400000000000ULL
__u64 disable; /* disable particular subsystems */
__u64 debug0; /* as above, but *internal* ids, and *NOT* ABI */
};
#define NV_DEVICE_V0_INFO 0x00

1
drivers/gpu/drm/nouveau/include/nvkm/core/device.h
View file

@ -212,6 +212,7 @@ enum nv_bus_type {
int nvkm_device_new(void *, enum nv_bus_type type, u64 name,
const char *sname, const char *cfg, const char *dbg,
bool detect, bool mmio, u64 subdev_mask,
struct nvkm_device **);
void nvkm_device_del(struct nvkm_device **);

32
drivers/gpu/drm/nouveau/nouveau_drm.c
View file

@ -327,7 +327,7 @@ static int nouveau_drm_probe(struct pci_dev *pdev,
ret = nvkm_device_new(pdev, NVKM_BUS_PCI, nouveau_pci_name(pdev),
pci_name(pdev), nouveau_config, nouveau_debug,
&device);
true, true, ~0ULL, &device);
if (ret)
return ret;
@ -375,7 +375,6 @@ nouveau_get_hdmi_dev(struct nouveau_drm *drm)
static int
nouveau_drm_load(struct drm_device *dev, unsigned long flags)
{
struct pci_dev *pdev = dev->pdev;
struct nouveau_drm *drm;
int ret;
@ -393,36 +392,10 @@ nouveau_drm_load(struct drm_device *dev, unsigned long flags)
nouveau_get_hdmi_dev(drm);
/* make sure AGP controller is in a consistent state before we
* (possibly) execute vbios init tables (see nouveau_agp.h)
*/
if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
NV_DEVICE_V0_DISABLE_MMIO;
/* dummy device object, doesn't init anything, but allows
* agp code access to registers
*/
ret = nvif_device_init(&drm->client.base.base, NULL,
NVDRM_DEVICE, NV_DEVICE,
&(struct nv_device_v0) {
.device = ~0,
.disable = ~enables,
.debug0 = ~0,
}, sizeof(struct nv_device_v0),
&drm->device);
if (ret)
goto fail_device;
nouveau_agp_reset(drm);
nvif_device_fini(&drm->device);
}
ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
NV_DEVICE,
&(struct nv_device_v0) {
.device = ~0,
.disable = 0,
.debug0 = 0,
}, sizeof(struct nv_device_v0),
&drm->device);
if (ret)
@ -1065,7 +1038,8 @@ nouveau_platform_device_create(struct platform_device *pdev,
err = nvkm_device_new(pdev, NVKM_BUS_PLATFORM,
nouveau_platform_name(pdev),
dev_name(&pdev->dev), nouveau_config,
nouveau_debug, pdevice);
nouveau_debug, true, true, ~0ULL,
pdevice);
if (err)
goto err_free;

501
drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
View file

@ -73,7 +73,6 @@ nvkm_device_list(u64 *name, int size)
struct nvkm_devobj {
struct nvkm_parent base;
struct nvkm_object *subdev[NVDEV_SUBDEV_NR];
};
static int
@ -206,65 +205,11 @@ nvkm_devobj_map(struct nvkm_object *object, u64 *addr, u32 *size)
return 0;
}
static const u64 disable_map[] = {
[NVDEV_SUBDEV_VBIOS] = NV_DEVICE_V0_DISABLE_VBIOS,
[NVDEV_SUBDEV_DEVINIT] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_GPIO] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_I2C] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_CLK ] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_MXM] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_MC] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_BUS] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_TIMER] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_FB] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_LTC] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_IBUS] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_INSTMEM] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_MMU] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_BAR] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_VOLT] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_THERM] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_PMU] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_SUBDEV_FUSE] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_ENGINE_DMAOBJ] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_ENGINE_PM ] = NV_DEVICE_V0_DISABLE_CORE,
[NVDEV_ENGINE_FIFO] = NV_DEVICE_V0_DISABLE_FIFO,
[NVDEV_ENGINE_SW] = NV_DEVICE_V0_DISABLE_FIFO,
[NVDEV_ENGINE_GR] = NV_DEVICE_V0_DISABLE_GR,
[NVDEV_ENGINE_MPEG] = NV_DEVICE_V0_DISABLE_MPEG,
[NVDEV_ENGINE_ME] = NV_DEVICE_V0_DISABLE_ME,
[NVDEV_ENGINE_VP] = NV_DEVICE_V0_DISABLE_VP,
[NVDEV_ENGINE_CIPHER] = NV_DEVICE_V0_DISABLE_CIPHER,
[NVDEV_ENGINE_BSP] = NV_DEVICE_V0_DISABLE_BSP,
[NVDEV_ENGINE_MSPPP] = NV_DEVICE_V0_DISABLE_MSPPP,
[NVDEV_ENGINE_CE0] = NV_DEVICE_V0_DISABLE_CE0,
[NVDEV_ENGINE_CE1] = NV_DEVICE_V0_DISABLE_CE1,
[NVDEV_ENGINE_CE2] = NV_DEVICE_V0_DISABLE_CE2,
[NVDEV_ENGINE_VIC] = NV_DEVICE_V0_DISABLE_VIC,
[NVDEV_ENGINE_MSENC] = NV_DEVICE_V0_DISABLE_MSENC,
[NVDEV_ENGINE_DISP] = NV_DEVICE_V0_DISABLE_DISP,
[NVDEV_ENGINE_MSVLD] = NV_DEVICE_V0_DISABLE_MSVLD,
[NVDEV_ENGINE_SEC] = NV_DEVICE_V0_DISABLE_SEC,
[NVDEV_SUBDEV_NR] = 0,
};
static void
nvkm_devobj_dtor(struct nvkm_object *object)
{
struct nvkm_devobj *devobj = (void *)object;
int i;
for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--)
nvkm_object_ref(NULL, &devobj->subdev[i]);
nvkm_parent_destroy(&devobj->base);
}
static struct nvkm_oclass
nvkm_devobj_oclass_super = {
.handle = NV_DEVICE,
.ofuncs = &(struct nvkm_ofuncs) {
.dtor = nvkm_devobj_dtor,
.dtor = _nvkm_parent_dtor,
.init = _nvkm_parent_init,
.fini = _nvkm_parent_fini,
.mthd = nvkm_devobj_mthd,
@ -289,17 +234,12 @@ nvkm_devobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_client *client = nv_client(parent);
struct nvkm_device *device;
struct nvkm_devobj *devobj;
u32 boot0, strap;
u64 disable, mmio_base, mmio_size;
void __iomem *map;
int ret, i, c;
int ret;
nvif_ioctl(parent, "create device size %d\n", size);
if (nvif_unpack(args->v0, 0, 0, false)) {
nvif_ioctl(parent, "create device v%d device %016llx "
"disable %016llx debug0 %016llx\n",
args->v0.version, args->v0.device,
args->v0.disable, args->v0.debug0);
nvif_ioctl(parent, "create device v%d device %016llx\n",
args->v0.version, args->v0.device);
} else
return ret;
@ -325,226 +265,13 @@ nvkm_devobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
if (ret)
return ret;
mmio_base = nv_device_resource_start(device, 0);
mmio_size = nv_device_resource_len(device, 0);
/* translate api disable mask into internal mapping */
disable = args->v0.debug0;
for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
if (args->v0.disable & disable_map[i])
disable |= (1ULL << i);
}
/* identify the chipset, and determine classes of subdev/engines */
if (!(args->v0.disable & NV_DEVICE_V0_DISABLE_IDENTIFY) &&
!device->card_type) {
map = ioremap(mmio_base, 0x102000);
if (map == NULL)
return -ENOMEM;
/* switch mmio to cpu's native endianness */
#ifndef __BIG_ENDIAN
if (ioread32_native(map + 0x000004) != 0x00000000) {
#else
if (ioread32_native(map + 0x000004) == 0x00000000) {
#endif
iowrite32_native(0x01000001, map + 0x000004);
ioread32_native(map);
}
/* read boot0 and strapping information */
boot0 = ioread32_native(map + 0x000000);
strap = ioread32_native(map + 0x101000);
iounmap(map);
/* determine chipset and derive architecture from it */
if ((boot0 & 0x1f000000) > 0) {
device->chipset = (boot0 & 0x1ff00000) >> 20;
device->chiprev = (boot0 & 0x000000ff);
switch (device->chipset & 0x1f0) {
case 0x010: {
if (0x461 & (1 << (device->chipset & 0xf)))
device->card_type = NV_10;
else
device->card_type = NV_11;
device->chiprev = 0x00;
break;
}
case 0x020: device->card_type = NV_20; break;
case 0x030: device->card_type = NV_30; break;
case 0x040:
case 0x060: device->card_type = NV_40; break;
case 0x050:
case 0x080:
case 0x090:
case 0x0a0: device->card_type = NV_50; break;
case 0x0c0:
case 0x0d0: device->card_type = NV_C0; break;
case 0x0e0:
case 0x0f0:
case 0x100: device->card_type = NV_E0; break;
case 0x110:
case 0x120: device->card_type = GM100; break;
default:
break;
}
} else
if ((boot0 & 0xff00fff0) == 0x20004000) {
if (boot0 & 0x00f00000)
device->chipset = 0x05;
else
device->chipset = 0x04;
device->card_type = NV_04;
}
switch (device->card_type) {
case NV_04: ret = nv04_identify(device); break;
case NV_10:
case NV_11: ret = nv10_identify(device); break;
case NV_20: ret = nv20_identify(device); break;
case NV_30: ret = nv30_identify(device); break;
case NV_40: ret = nv40_identify(device); break;
case NV_50: ret = nv50_identify(device); break;
case NV_C0: ret = gf100_identify(device); break;
case NV_E0: ret = gk104_identify(device); break;
case GM100: ret = gm100_identify(device); break;
default:
ret = -EINVAL;
break;
}
if (ret) {
nvdev_error(device, "unknown chipset (%08x)\n", boot0);
return ret;
}
nvdev_info(device, "NVIDIA %s (%08x)\n", device->cname, boot0);
/* determine frequency of timing crystal */
if ( device->card_type <= NV_10 || device->chipset < 0x17 ||
(device->chipset >= 0x20 && device->chipset < 0x25))
strap &= 0x00000040;
else
strap &= 0x00400040;
switch (strap) {
case 0x00000000: device->crystal = 13500; break;
case 0x00000040: device->crystal = 14318; break;
case 0x00400000: device->crystal = 27000; break;
case 0x00400040: device->crystal = 25000; break;
}
} else
if ( (args->v0.disable & NV_DEVICE_V0_DISABLE_IDENTIFY)) {
device->cname = "NULL";
device->oclass[NVDEV_SUBDEV_VBIOS] = &nvkm_bios_oclass;
}
if (!(args->v0.disable & NV_DEVICE_V0_DISABLE_MMIO) && !device->pri) {
device->pri = ioremap(mmio_base, mmio_size);
if (!device->pri) {
nvdev_error(device, "unable to map PRI\n");
return -ENOMEM;
}
}
/* ensure requested subsystems are available for use */
for (i = 1, c = 1; i < NVDEV_SUBDEV_NR; i++) {
if (!(oclass = device->oclass[i]) || (disable & (1ULL << i)))
continue;
if (device->subdev[i]) {
nvkm_object_ref(device->subdev[i], &devobj->subdev[i]);
continue;
}
#define _(s,m) case s: \
ret = nvkm_object_ctor(nv_object(device), NULL, oclass, NULL, \
(s), (struct nvkm_object **)&device->m);\
if (ret == -ENODEV) \
continue; \
if (ret) \
return ret; \
devobj->subdev[s] = (struct nvkm_object *)device->m; \
device->subdev[s] = devobj->subdev[s]; \
break
switch (i) {
_(NVDEV_SUBDEV_BAR , bar);
_(NVDEV_SUBDEV_VBIOS , bios);
_(NVDEV_SUBDEV_BUS , bus);
_(NVDEV_SUBDEV_CLK , clk);
_(NVDEV_SUBDEV_DEVINIT, devinit);
_(NVDEV_SUBDEV_FB , fb);
_(NVDEV_SUBDEV_FUSE , fuse);
_(NVDEV_SUBDEV_GPIO , gpio);
_(NVDEV_SUBDEV_I2C , i2c);
_(NVDEV_SUBDEV_IBUS , ibus);
_(NVDEV_SUBDEV_INSTMEM, imem);
_(NVDEV_SUBDEV_LTC , ltc);
_(NVDEV_SUBDEV_MC , mc);
_(NVDEV_SUBDEV_MMU , mmu);
_(NVDEV_SUBDEV_MXM , mxm);
_(NVDEV_SUBDEV_PMU , pmu);
_(NVDEV_SUBDEV_THERM , therm);
_(NVDEV_SUBDEV_TIMER , timer);
_(NVDEV_SUBDEV_VOLT , volt);
_(NVDEV_ENGINE_BSP , bsp);
_(NVDEV_ENGINE_CE0 , ce[0]);
_(NVDEV_ENGINE_CE1 , ce[1]);
_(NVDEV_ENGINE_CE2 , ce[2]);
_(NVDEV_ENGINE_CIPHER , cipher);
_(NVDEV_ENGINE_DISP , disp);
_(NVDEV_ENGINE_DMAOBJ , dma);
_(NVDEV_ENGINE_FIFO , fifo);
_(NVDEV_ENGINE_GR , gr);
_(NVDEV_ENGINE_IFB , ifb);
_(NVDEV_ENGINE_ME , me);
_(NVDEV_ENGINE_MPEG , mpeg);
_(NVDEV_ENGINE_MSENC , msenc);
_(NVDEV_ENGINE_MSPDEC , mspdec);
_(NVDEV_ENGINE_MSPPP , msppp);
_(NVDEV_ENGINE_MSVLD , msvld);
_(NVDEV_ENGINE_PM , pm);
_(NVDEV_ENGINE_SEC , sec);
_(NVDEV_ENGINE_SW , sw);
_(NVDEV_ENGINE_VIC , vic);
_(NVDEV_ENGINE_VP , vp);
default:
WARN_ON(1);
continue;
}
#undef _
/* note: can't init *any* subdevs until devinit has been run
* due to not knowing exactly what the vbios init tables will
* mess with. devinit also can't be run until all of its
* dependencies have been created.
*
* this code delays init of any subdev until all of devinit's
* dependencies have been created, and then initialises each
* subdev in turn as they're created.
*/
while (i >= NVDEV_SUBDEV_DEVINIT_LAST && c <= i) {
struct nvkm_object *subdev = devobj->subdev[c++];
if (subdev && !nv_iclass(subdev, NV_ENGINE_CLASS)) {
ret = nvkm_object_inc(subdev);
if (ret)
return ret;
atomic_dec(&nv_object(device)->usecount);
} else
if (subdev) {
nvkm_subdev_reset(subdev);
}
}
}
return 0;
}
static struct nvkm_ofuncs
nvkm_devobj_ofuncs = {
.ctor = nvkm_devobj_ctor,
.dtor = nvkm_devobj_dtor,
.dtor = _nvkm_parent_dtor,
.init = _nvkm_parent_init,
.fini = _nvkm_parent_fini,
.mthd = nvkm_devobj_mthd,
@ -634,19 +361,89 @@ nvkm_device_init(struct nvkm_object *object)
{
struct nvkm_device *device = (void *)object;
struct nvkm_object *subdev;
int ret, i = 0;
int ret, i = 0, c;
ret = nvkm_acpi_init(device);
if (ret)
goto fail;
for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
if ((subdev = device->subdev[i])) {
if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
for (i = 1, c = 1; i < NVDEV_SUBDEV_NR; i++) {
#define _(s,m) case s: if (device->oclass[s] && !device->subdev[s]) { \
ret = nvkm_object_ctor(nv_object(device), NULL, \
device->oclass[s], NULL, (s), \
(struct nvkm_object **)&device->m); \
if (ret == -ENODEV) { \
device->oclass[s] = NULL; \
continue; \
} \
if (ret) \
goto fail; \
device->subdev[s] = (struct nvkm_object *)device->m; \
} break
switch (i) {
_(NVDEV_SUBDEV_BAR , bar);
_(NVDEV_SUBDEV_VBIOS , bios);
_(NVDEV_SUBDEV_BUS , bus);
_(NVDEV_SUBDEV_CLK , clk);
_(NVDEV_SUBDEV_DEVINIT, devinit);
_(NVDEV_SUBDEV_FB , fb);
_(NVDEV_SUBDEV_FUSE , fuse);
_(NVDEV_SUBDEV_GPIO , gpio);
_(NVDEV_SUBDEV_I2C , i2c);
_(NVDEV_SUBDEV_IBUS , ibus);
_(NVDEV_SUBDEV_INSTMEM, imem);
_(NVDEV_SUBDEV_LTC , ltc);
_(NVDEV_SUBDEV_MC , mc);
_(NVDEV_SUBDEV_MMU , mmu);
_(NVDEV_SUBDEV_MXM , mxm);
_(NVDEV_SUBDEV_PMU , pmu);
_(NVDEV_SUBDEV_THERM , therm);
_(NVDEV_SUBDEV_TIMER , timer);
_(NVDEV_SUBDEV_VOLT , volt);
_(NVDEV_ENGINE_BSP , bsp);
_(NVDEV_ENGINE_CE0 , ce[0]);
_(NVDEV_ENGINE_CE1 , ce[1]);
_(NVDEV_ENGINE_CE2 , ce[2]);
_(NVDEV_ENGINE_CIPHER , cipher);
_(NVDEV_ENGINE_DISP , disp);
_(NVDEV_ENGINE_DMAOBJ , dma);
_(NVDEV_ENGINE_FIFO , fifo);
_(NVDEV_ENGINE_GR , gr);
_(NVDEV_ENGINE_IFB , ifb);
_(NVDEV_ENGINE_ME , me);
_(NVDEV_ENGINE_MPEG , mpeg);
_(NVDEV_ENGINE_MSENC , msenc);
_(NVDEV_ENGINE_MSPDEC , mspdec);
_(NVDEV_ENGINE_MSPPP , msppp);
_(NVDEV_ENGINE_MSVLD , msvld);
_(NVDEV_ENGINE_PM , pm);
_(NVDEV_ENGINE_SEC , sec);
_(NVDEV_ENGINE_SW , sw);
_(NVDEV_ENGINE_VIC , vic);
_(NVDEV_ENGINE_VP , vp);
default:
WARN_ON(1);
continue;
}
#undef _
/* note: can't init *any* subdevs until devinit has been run
* due to not knowing exactly what the vbios init tables will
* mess with. devinit also can't be run until all of its
* dependencies have been created.
*
* this code delays init of any subdev until all of devinit's
* dependencies have been created, and then initialises each
* subdev in turn as they're created.
*/
while (i >= NVDEV_SUBDEV_DEVINIT_LAST && c <= i) {
struct nvkm_object *subdev = device->subdev[c++];
if (subdev && !nv_iclass(subdev, NV_ENGINE_CLASS)) {
ret = nvkm_object_inc(subdev);
if (ret)
goto fail;
} else {
} else
if (subdev) {
nvkm_subdev_reset(subdev);
}
}
@ -720,15 +517,18 @@ void
nvkm_device_del(struct nvkm_device **pdevice)
{
struct nvkm_device *device = *pdevice;
int i;
if (device) {
nvkm_event_fini(&device->event);
mutex_lock(&nv_devices_mutex);
list_del(&device->head);
mutex_unlock(&nv_devices_mutex);
for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--)
nvkm_object_ref(NULL, &device->subdev[i]);
nvkm_event_fini(&device->event);
if (device->pri)
iounmap(device->pri);
list_del(&device->head);
mutex_unlock(&nv_devices_mutex);
nvkm_engine_destroy(&device->engine);
*pdevice = NULL;
@ -738,10 +538,15 @@ nvkm_device_del(struct nvkm_device **pdevice)
int
nvkm_device_new(void *dev, enum nv_bus_type type, u64 name,
const char *sname, const char *cfg, const char *dbg,
bool detect, bool mmio, u64 subdev_mask,
struct nvkm_device **pdevice)
{
struct nvkm_device *device;
u64 mmio_base, mmio_size;
u32 boot0, strap;
void __iomem *map;
int ret = -EEXIST;
int i;
mutex_lock(&nv_devices_mutex);
list_for_each_entry(device, &nv_devices, head) {
@ -775,6 +580,128 @@ nvkm_device_new(void *dev, enum nv_bus_type type, u64 name,
list_add_tail(&device->head, &nv_devices);
ret = nvkm_event_init(&nvkm_device_event_func, 1, 1, &device->event);
if (ret)
goto done;
mmio_base = nv_device_resource_start(device, 0);
mmio_size = nv_device_resource_len(device, 0);
/* identify the chipset, and determine classes of subdev/engines */
if (detect) {
map = ioremap(mmio_base, 0x102000);
if (ret = -ENOMEM, map == NULL)
goto done;
/* switch mmio to cpu's native endianness */
#ifndef __BIG_ENDIAN
if (ioread32_native(map + 0x000004) != 0x00000000) {
#else
if (ioread32_native(map + 0x000004) == 0x00000000) {
#endif
iowrite32_native(0x01000001, map + 0x000004);
ioread32_native(map);
}
/* read boot0 and strapping information */
boot0 = ioread32_native(map + 0x000000);
strap = ioread32_native(map + 0x101000);
iounmap(map);
/* determine chipset and derive architecture from it */
if ((boot0 & 0x1f000000) > 0) {
device->chipset = (boot0 & 0x1ff00000) >> 20;
device->chiprev = (boot0 & 0x000000ff);
switch (device->chipset & 0x1f0) {
case 0x010: {
if (0x461 & (1 << (device->chipset & 0xf)))
device->card_type = NV_10;
else
device->card_type = NV_11;
device->chiprev = 0x00;
break;
}
case 0x020: device->card_type = NV_20; break;
case 0x030: device->card_type = NV_30; break;
case 0x040:
case 0x060: device->card_type = NV_40; break;
case 0x050:
case 0x080:
case 0x090:
case 0x0a0: device->card_type = NV_50; break;
case 0x0c0:
case 0x0d0: device->card_type = NV_C0; break;
case 0x0e0:
case 0x0f0:
case 0x100: device->card_type = NV_E0; break;
case 0x110:
case 0x120: device->card_type = GM100; break;
default:
break;
}
} else
if ((boot0 & 0xff00fff0) == 0x20004000) {
if (boot0 & 0x00f00000)
device->chipset = 0x05;
else
device->chipset = 0x04;
device->card_type = NV_04;
}
switch (device->card_type) {
case NV_04: ret = nv04_identify(device); break;
case NV_10:
case NV_11: ret = nv10_identify(device); break;
case NV_20: ret = nv20_identify(device); break;
case NV_30: ret = nv30_identify(device); break;
case NV_40: ret = nv40_identify(device); break;
case NV_50: ret = nv50_identify(device); break;
case NV_C0: ret = gf100_identify(device); break;
case NV_E0: ret = gk104_identify(device); break;
case GM100: ret = gm100_identify(device); break;
default:
ret = -EINVAL;
break;
}
if (ret) {
nvdev_error(device, "unknown chipset (%08x)\n", boot0);
goto done;
}
nvdev_info(device, "NVIDIA %s (%08x)\n", device->cname, boot0);
/* determine frequency of timing crystal */
if ( device->card_type <= NV_10 || device->chipset < 0x17 ||
(device->chipset >= 0x20 && device->chipset < 0x25))
strap &= 0x00000040;
else
strap &= 0x00400040;
switch (strap) {
case 0x00000000: device->crystal = 13500; break;
case 0x00000040: device->crystal = 14318; break;
case 0x00400000: device->crystal = 27000; break;
case 0x00400040: device->crystal = 25000; break;
}
} else {
device->cname = "NULL";
device->oclass[NVDEV_SUBDEV_VBIOS] = &nvkm_bios_oclass;
}
if (mmio) {
device->pri = ioremap(mmio_base, mmio_size);
if (!device->pri) {
nvdev_error(device, "unable to map PRI\n");
return -ENOMEM;
}
}
/* disable subdevs that aren't required (used by tools) */
for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
if (!(subdev_mask & (1ULL << i)))
device->oclass[i] = NULL;
}
done:
mutex_unlock(&nv_devices_mutex);
return ret;