diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/mc/base.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/mc/base.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c deleted file mode 100644 index 25e3b96..0000000 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * 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 <core/option.h> - -static inline void -nouveau_mc_unk260(struct nouveau_mc *pmc, u32 data) -{ - const struct nouveau_mc_oclass *impl = (void *)nv_oclass(pmc); - if (impl->unk260) - impl->unk260(pmc, data); -} - -static inline u32 -nouveau_mc_intr_mask(struct nouveau_mc *pmc) -{ - u32 intr = nv_rd32(pmc, 0x000100); - if (intr == 0xffffffff) /* likely fallen off the bus */ - intr = 0x00000000; - return intr; -} - -static irqreturn_t -nouveau_mc_intr(int irq, void *arg) -{ - struct nouveau_mc *pmc = arg; - const struct nouveau_mc_oclass *oclass = (void *)nv_object(pmc)->oclass; - const struct nouveau_mc_intr *map = oclass->intr; - struct nouveau_subdev *unit; - u32 intr; - - nv_wr32(pmc, 0x000140, 0x00000000); - nv_rd32(pmc, 0x000140); - intr = nouveau_mc_intr_mask(pmc); - if (pmc->use_msi) - oclass->msi_rearm(pmc); - - if (intr) { - u32 stat = intr = nouveau_mc_intr_mask(pmc); - while (map->stat) { - if (intr & map->stat) { - unit = nouveau_subdev(pmc, map->unit); - if (unit && unit->intr) - unit->intr(unit); - stat &= ~map->stat; - } - map++; - } - - if (stat) - nv_error(pmc, "unknown intr 0x%08x\n", stat); - } - - nv_wr32(pmc, 0x000140, 0x00000001); - return intr ? IRQ_HANDLED : IRQ_NONE; -} - -int -_nouveau_mc_fini(struct nouveau_object *object, bool suspend) -{ - struct nouveau_mc *pmc = (void *)object; - nv_wr32(pmc, 0x000140, 0x00000000); - return nouveau_subdev_fini(&pmc->base, suspend); -} - -int -_nouveau_mc_init(struct nouveau_object *object) -{ - struct nouveau_mc *pmc = (void *)object; - int ret = nouveau_subdev_init(&pmc->base); - if (ret) - return ret; - nv_wr32(pmc, 0x000140, 0x00000001); - return 0; -} - -void -_nouveau_mc_dtor(struct nouveau_object *object) -{ - struct nouveau_device *device = nv_device(object); - struct nouveau_mc *pmc = (void *)object; - free_irq(pmc->irq, pmc); - if (pmc->use_msi) - pci_disable_msi(device->pdev); - nouveau_subdev_destroy(&pmc->base); -} - -int -nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine, - struct nouveau_oclass *bclass, int length, void **pobject) -{ - const struct nouveau_mc_oclass *oclass = (void *)bclass; - struct nouveau_device *device = nv_device(parent); - struct nouveau_mc *pmc; - int ret; - - ret = nouveau_subdev_create_(parent, engine, bclass, 0, "PMC", - "master", length, pobject); - pmc = *pobject; - if (ret) - return ret; - - pmc->unk260 = nouveau_mc_unk260; - - if (nv_device_is_pci(device)) { - switch (device->pdev->device & 0x0ff0) { - case 0x00f0: - case 0x02e0: - /* BR02? NFI how these would be handled yet exactly */ - break; - default: - switch (device->chipset) { - case 0xaa: - /* reported broken, nv also disable it */ - break; - default: - pmc->use_msi = true; - break; - } - } - - pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI", - pmc->use_msi); - - if (pmc->use_msi && oclass->msi_rearm) { - pmc->use_msi = pci_enable_msi(device->pdev) == 0; - if (pmc->use_msi) { - nv_info(pmc, "MSI interrupts enabled\n"); - oclass->msi_rearm(pmc); - } - } else { - pmc->use_msi = false; - } - } - - ret = nv_device_get_irq(device, true); - if (ret < 0) - return ret; - pmc->irq = ret; - - ret = request_irq(pmc->irq, nouveau_mc_intr, IRQF_SHARED, "nouveau", - pmc); - - if (ret < 0) - return ret; - - return 0; -} |