diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c')
-rw-r--r-- | kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c | 178 |
1 files changed, 66 insertions, 112 deletions
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c index 5b051a266..954fbbe56 100644 --- a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/mc/base.c @@ -23,147 +23,101 @@ */ #include "priv.h" -#include <core/device.h> #include <core/option.h> -static inline void -nvkm_mc_unk260(struct nvkm_mc *pmc, u32 data) +void +nvkm_mc_unk260(struct nvkm_mc *mc, u32 data) { - const struct nvkm_mc_oclass *impl = (void *)nv_oclass(pmc); - if (impl->unk260) - impl->unk260(pmc, data); + if (mc->func->unk260) + mc->func->unk260(mc, data); } -static inline u32 -nvkm_mc_intr_mask(struct nvkm_mc *pmc) +void +nvkm_mc_intr_unarm(struct nvkm_mc *mc) { - u32 intr = nv_rd32(pmc, 0x000100); - if (intr == 0xffffffff) /* likely fallen off the bus */ - intr = 0x00000000; - return intr; + return mc->func->intr_unarm(mc); } -static irqreturn_t -nvkm_mc_intr(int irq, void *arg) +void +nvkm_mc_intr_rearm(struct nvkm_mc *mc) { - struct nvkm_mc *pmc = arg; - const struct nvkm_mc_oclass *oclass = (void *)nv_object(pmc)->oclass; - const struct nvkm_mc_intr *map = oclass->intr; - struct nvkm_subdev *unit; - u32 intr; + return mc->func->intr_rearm(mc); +} - nv_wr32(pmc, 0x000140, 0x00000000); - nv_rd32(pmc, 0x000140); - intr = nvkm_mc_intr_mask(pmc); - if (pmc->use_msi) - oclass->msi_rearm(pmc); +static u32 +nvkm_mc_intr_mask(struct nvkm_mc *mc) +{ + u32 intr = mc->func->intr_mask(mc); + if (WARN_ON_ONCE(intr == 0xffffffff)) + intr = 0; /* likely fallen off the bus */ + return intr; +} - if (intr) { - u32 stat = intr = nvkm_mc_intr_mask(pmc); - while (map->stat) { - if (intr & map->stat) { - unit = nvkm_subdev(pmc, map->unit); - if (unit && unit->intr) - unit->intr(unit); - stat &= ~map->stat; - } - map++; +void +nvkm_mc_intr(struct nvkm_mc *mc, bool *handled) +{ + struct nvkm_device *device = mc->subdev.device; + struct nvkm_subdev *subdev; + const struct nvkm_mc_intr *map = mc->func->intr; + u32 stat, intr; + + stat = intr = nvkm_mc_intr_mask(mc); + while (map->stat) { + if (intr & map->stat) { + subdev = nvkm_device_subdev(device, map->unit); + if (subdev) + nvkm_subdev_intr(subdev); + stat &= ~map->stat; } - - if (stat) - nv_error(pmc, "unknown intr 0x%08x\n", stat); + map++; } - nv_wr32(pmc, 0x000140, 0x00000001); - return intr ? IRQ_HANDLED : IRQ_NONE; + if (stat) + nvkm_error(&mc->subdev, "intr %08x\n", stat); + *handled = intr != 0; } -int -_nvkm_mc_fini(struct nvkm_object *object, bool suspend) +static int +nvkm_mc_fini(struct nvkm_subdev *subdev, bool suspend) { - struct nvkm_mc *pmc = (void *)object; - nv_wr32(pmc, 0x000140, 0x00000000); - return nvkm_subdev_fini(&pmc->base, suspend); + struct nvkm_mc *mc = nvkm_mc(subdev); + nvkm_mc_intr_unarm(mc); + return 0; } -int -_nvkm_mc_init(struct nvkm_object *object) +static int +nvkm_mc_init(struct nvkm_subdev *subdev) { - struct nvkm_mc *pmc = (void *)object; - int ret = nvkm_subdev_init(&pmc->base); - if (ret) - return ret; - nv_wr32(pmc, 0x000140, 0x00000001); + struct nvkm_mc *mc = nvkm_mc(subdev); + if (mc->func->init) + mc->func->init(mc); + nvkm_mc_intr_rearm(mc); return 0; } -void -_nvkm_mc_dtor(struct nvkm_object *object) +static void * +nvkm_mc_dtor(struct nvkm_subdev *subdev) { - struct nvkm_device *device = nv_device(object); - struct nvkm_mc *pmc = (void *)object; - free_irq(pmc->irq, pmc); - if (pmc->use_msi) - pci_disable_msi(device->pdev); - nvkm_subdev_destroy(&pmc->base); + return nvkm_mc(subdev); } +static const struct nvkm_subdev_func +nvkm_mc = { + .dtor = nvkm_mc_dtor, + .init = nvkm_mc_init, + .fini = nvkm_mc_fini, +}; + int -nvkm_mc_create_(struct nvkm_object *parent, struct nvkm_object *engine, - struct nvkm_oclass *bclass, int length, void **pobject) +nvkm_mc_new_(const struct nvkm_mc_func *func, struct nvkm_device *device, + int index, struct nvkm_mc **pmc) { - const struct nvkm_mc_oclass *oclass = (void *)bclass; - struct nvkm_device *device = nv_device(parent); - struct nvkm_mc *pmc; - int ret; - - ret = nvkm_subdev_create_(parent, engine, bclass, 0, "PMC", - "master", length, pobject); - pmc = *pobject; - if (ret) - return ret; - - pmc->unk260 = nvkm_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 = nvkm_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; + struct nvkm_mc *mc; - ret = request_irq(pmc->irq, nvkm_mc_intr, IRQF_SHARED, "nvkm", pmc); - if (ret < 0) - return ret; + if (!(mc = *pmc = kzalloc(sizeof(*mc), GFP_KERNEL))) + return -ENOMEM; + nvkm_subdev_ctor(&nvkm_mc, device, index, 0, &mc->subdev); + mc->func = func; return 0; } |