diff options
author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c | 736 |
1 files changed, 736 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c new file mode 100644 index 000000000..63d8e52f4 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c @@ -0,0 +1,736 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * 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 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 HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: Ben Skeggs + */ +#include "priv.h" +#include "acpi.h" + +#include <core/client.h> +#include <core/option.h> +#include <core/notify.h> +#include <core/parent.h> +#include <subdev/bios.h> +#include <subdev/fb.h> +#include <subdev/instmem.h> + +#include <nvif/class.h> +#include <nvif/unpack.h> + +static DEFINE_MUTEX(nv_devices_mutex); +static LIST_HEAD(nv_devices); + +struct nvkm_device * +nvkm_device_find(u64 name) +{ + struct nvkm_device *device, *match = NULL; + mutex_lock(&nv_devices_mutex); + list_for_each_entry(device, &nv_devices, head) { + if (device->handle == name) { + match = device; + break; + } + } + mutex_unlock(&nv_devices_mutex); + return match; +} + +int +nvkm_device_list(u64 *name, int size) +{ + struct nvkm_device *device; + int nr = 0; + mutex_lock(&nv_devices_mutex); + list_for_each_entry(device, &nv_devices, head) { + if (nr++ < size) + name[nr - 1] = device->handle; + } + mutex_unlock(&nv_devices_mutex); + return nr; +} + +/****************************************************************************** + * nvkm_devobj (0x0080): class implementation + *****************************************************************************/ + +struct nvkm_devobj { + struct nvkm_parent base; + struct nvkm_object *subdev[NVDEV_SUBDEV_NR]; +}; + +static int +nvkm_devobj_info(struct nvkm_object *object, void *data, u32 size) +{ + struct nvkm_device *device = nv_device(object); + struct nvkm_fb *pfb = nvkm_fb(device); + struct nvkm_instmem *imem = nvkm_instmem(device); + union { + struct nv_device_info_v0 v0; + } *args = data; + int ret; + + nv_ioctl(object, "device info size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "device info vers %d\n", args->v0.version); + } else + return ret; + + switch (device->chipset) { + case 0x01a: + case 0x01f: + case 0x04c: + case 0x04e: + case 0x063: + case 0x067: + case 0x068: + case 0x0aa: + case 0x0ac: + case 0x0af: + args->v0.platform = NV_DEVICE_INFO_V0_IGP; + break; + default: + if (device->pdev) { + if (pci_find_capability(device->pdev, PCI_CAP_ID_AGP)) + args->v0.platform = NV_DEVICE_INFO_V0_AGP; + else + if (pci_is_pcie(device->pdev)) + args->v0.platform = NV_DEVICE_INFO_V0_PCIE; + else + args->v0.platform = NV_DEVICE_INFO_V0_PCI; + } else { + args->v0.platform = NV_DEVICE_INFO_V0_SOC; + } + break; + } + + switch (device->card_type) { + case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break; + case NV_10: + case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break; + case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break; + case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break; + case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break; + case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break; + case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break; + case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break; + case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break; + default: + args->v0.family = 0; + break; + } + + args->v0.chipset = device->chipset; + args->v0.revision = device->chiprev; + if (pfb && pfb->ram) + args->v0.ram_size = args->v0.ram_user = pfb->ram->size; + else + args->v0.ram_size = args->v0.ram_user = 0; + if (imem && args->v0.ram_size > 0) + args->v0.ram_user = args->v0.ram_user - imem->reserved; + + return 0; +} + +static int +nvkm_devobj_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) +{ + switch (mthd) { + case NV_DEVICE_V0_INFO: + return nvkm_devobj_info(object, data, size); + default: + break; + } + return -EINVAL; +} + +static u8 +nvkm_devobj_rd08(struct nvkm_object *object, u64 addr) +{ + return nv_rd08(object->engine, addr); +} + +static u16 +nvkm_devobj_rd16(struct nvkm_object *object, u64 addr) +{ + return nv_rd16(object->engine, addr); +} + +static u32 +nvkm_devobj_rd32(struct nvkm_object *object, u64 addr) +{ + return nv_rd32(object->engine, addr); +} + +static void +nvkm_devobj_wr08(struct nvkm_object *object, u64 addr, u8 data) +{ + nv_wr08(object->engine, addr, data); +} + +static void +nvkm_devobj_wr16(struct nvkm_object *object, u64 addr, u16 data) +{ + nv_wr16(object->engine, addr, data); +} + +static void +nvkm_devobj_wr32(struct nvkm_object *object, u64 addr, u32 data) +{ + nv_wr32(object->engine, addr, data); +} + +static int +nvkm_devobj_map(struct nvkm_object *object, u64 *addr, u32 *size) +{ + struct nvkm_device *device = nv_device(object); + *addr = nv_device_resource_start(device, 0); + *size = nv_device_resource_len(device, 0); + 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, + .init = _nvkm_parent_init, + .fini = _nvkm_parent_fini, + .mthd = nvkm_devobj_mthd, + .map = nvkm_devobj_map, + .rd08 = nvkm_devobj_rd08, + .rd16 = nvkm_devobj_rd16, + .rd32 = nvkm_devobj_rd32, + .wr08 = nvkm_devobj_wr08, + .wr16 = nvkm_devobj_wr16, + .wr32 = nvkm_devobj_wr32, + } +}; + +static int +nvkm_devobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, void *data, u32 size, + struct nvkm_object **pobject) +{ + union { + struct nv_device_v0 v0; + } *args = data; + 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; + + nv_ioctl(parent, "create device size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_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); + } else + return ret; + + /* give priviledged clients register access */ + if (client->super) + oclass = &nvkm_devobj_oclass_super; + + /* find the device subdev that matches what the client requested */ + device = nv_device(client->device); + if (args->v0.device != ~0) { + device = nvkm_device_find(args->v0.device); + if (!device) + return -ENODEV; + } + + ret = nvkm_parent_create(parent, nv_object(device), oclass, 0, + nvkm_control_oclass, + (1ULL << NVDEV_ENGINE_DMAOBJ) | + (1ULL << NVDEV_ENGINE_FIFO) | + (1ULL << NVDEV_ENGINE_DISP) | + (1ULL << NVDEV_ENGINE_PM), &devobj); + *pobject = nv_object(devobj); + 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) { + nv_error(device, "unknown chipset, 0x%08x\n", boot0); + return ret; + } + + nv_info(device, "BOOT0 : 0x%08x\n", boot0); + nv_info(device, "Chipset: %s (NV%02X)\n", + device->cname, device->chipset); + nv_info(device, "Family : NV%02X\n", device->card_type); + + /* 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; + } + + nv_debug(device, "crystal freq: %dKHz\n", device->crystal); + } 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) && + !nv_subdev(device)->mmio) { + nv_subdev(device)->mmio = ioremap(mmio_base, mmio_size); + if (!nv_subdev(device)->mmio) { + nv_error(device, "unable to map device registers\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; + } + + ret = nvkm_object_ctor(nv_object(device), NULL, oclass, + NULL, i, &devobj->subdev[i]); + if (ret == -ENODEV) + continue; + if (ret) + return ret; + + device->subdev[i] = devobj->subdev[i]; + + /* 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, + .init = _nvkm_parent_init, + .fini = _nvkm_parent_fini, + .mthd = nvkm_devobj_mthd, +}; + +/****************************************************************************** + * nvkm_device: engine functions + *****************************************************************************/ + +struct nvkm_device * +nv_device(void *obj) +{ + struct nvkm_object *device = nv_object(obj); + if (device->engine == NULL) { + while (device && device->parent) + device = device->parent; + } else { + device = &nv_object(obj)->engine->subdev.object; + if (device && device->parent) + device = device->parent; + } +#if CONFIG_NOUVEAU_DEBUG >= NV_DBG_PARANOIA + if (unlikely(!device)) + nv_assert("BAD CAST -> NvDevice, 0x%08x\n", nv_hclass(obj)); +#endif + return (void *)device; +} + +static struct nvkm_oclass +nvkm_device_sclass[] = { + { 0x0080, &nvkm_devobj_ofuncs }, + {} +}; + +static int +nvkm_device_event_ctor(struct nvkm_object *object, void *data, u32 size, + struct nvkm_notify *notify) +{ + if (!WARN_ON(size != 0)) { + notify->size = 0; + notify->types = 1; + notify->index = 0; + return 0; + } + return -EINVAL; +} + +static const struct nvkm_event_func +nvkm_device_event_func = { + .ctor = nvkm_device_event_ctor, +}; + +static int +nvkm_device_fini(struct nvkm_object *object, bool suspend) +{ + struct nvkm_device *device = (void *)object; + struct nvkm_object *subdev; + int ret, i; + + for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--) { + if ((subdev = device->subdev[i])) { + if (!nv_iclass(subdev, NV_ENGINE_CLASS)) { + ret = nvkm_object_dec(subdev, suspend); + if (ret && suspend) + goto fail; + } + } + } + + ret = nvkm_acpi_fini(device, suspend); +fail: + for (; ret && i < NVDEV_SUBDEV_NR; i++) { + if ((subdev = device->subdev[i])) { + if (!nv_iclass(subdev, NV_ENGINE_CLASS)) { + ret = nvkm_object_inc(subdev); + if (ret) { + /* XXX */ + } + } + } + } + + return ret; +} + +static int +nvkm_device_init(struct nvkm_object *object) +{ + struct nvkm_device *device = (void *)object; + struct nvkm_object *subdev; + int ret, i = 0; + + 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)) { + ret = nvkm_object_inc(subdev); + if (ret) + goto fail; + } else { + nvkm_subdev_reset(subdev); + } + } + } + + ret = 0; +fail: + for (--i; ret && i >= 0; i--) { + if ((subdev = device->subdev[i])) { + if (!nv_iclass(subdev, NV_ENGINE_CLASS)) + nvkm_object_dec(subdev, false); + } + } + + if (ret) + nvkm_acpi_fini(device, false); + return ret; +} + +static void +nvkm_device_dtor(struct nvkm_object *object) +{ + struct nvkm_device *device = (void *)object; + + nvkm_event_fini(&device->event); + + mutex_lock(&nv_devices_mutex); + list_del(&device->head); + mutex_unlock(&nv_devices_mutex); + + if (nv_subdev(device)->mmio) + iounmap(nv_subdev(device)->mmio); + + nvkm_engine_destroy(&device->engine); +} + +resource_size_t +nv_device_resource_start(struct nvkm_device *device, unsigned int bar) +{ + if (nv_device_is_pci(device)) { + return pci_resource_start(device->pdev, bar); + } else { + struct resource *res; + res = platform_get_resource(device->platformdev, + IORESOURCE_MEM, bar); + if (!res) + return 0; + return res->start; + } +} + +resource_size_t +nv_device_resource_len(struct nvkm_device *device, unsigned int bar) +{ + if (nv_device_is_pci(device)) { + return pci_resource_len(device->pdev, bar); + } else { + struct resource *res; + res = platform_get_resource(device->platformdev, + IORESOURCE_MEM, bar); + if (!res) + return 0; + return resource_size(res); + } +} + +int +nv_device_get_irq(struct nvkm_device *device, bool stall) +{ + if (nv_device_is_pci(device)) { + return device->pdev->irq; + } else { + return platform_get_irq_byname(device->platformdev, + stall ? "stall" : "nonstall"); + } +} + +static struct nvkm_oclass +nvkm_device_oclass = { + .handle = NV_ENGINE(DEVICE, 0x00), + .ofuncs = &(struct nvkm_ofuncs) { + .dtor = nvkm_device_dtor, + .init = nvkm_device_init, + .fini = nvkm_device_fini, + }, +}; + +int +nvkm_device_create_(void *dev, enum nv_bus_type type, u64 name, + const char *sname, const char *cfg, const char *dbg, + int length, void **pobject) +{ + struct nvkm_device *device; + int ret = -EEXIST; + + mutex_lock(&nv_devices_mutex); + list_for_each_entry(device, &nv_devices, head) { + if (device->handle == name) + goto done; + } + + ret = nvkm_engine_create_(NULL, NULL, &nvkm_device_oclass, true, + "DEVICE", "device", length, pobject); + device = *pobject; + if (ret) + goto done; + + switch (type) { + case NVKM_BUS_PCI: + device->pdev = dev; + break; + case NVKM_BUS_PLATFORM: + device->platformdev = dev; + break; + } + device->handle = name; + device->cfgopt = cfg; + device->dbgopt = dbg; + device->name = sname; + + nv_subdev(device)->debug = nvkm_dbgopt(device->dbgopt, "DEVICE"); + nv_engine(device)->sclass = nvkm_device_sclass; + list_add(&device->head, &nv_devices); + + ret = nvkm_event_init(&nvkm_device_event_func, 1, 1, &device->event); +done: + mutex_unlock(&nv_devices_mutex); + return ret; +} |