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 | 89 |
1 files changed, 52 insertions, 37 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c index e290cfa..b4b9943 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c @@ -25,38 +25,48 @@ #include <subdev/mc.h> #include <core/option.h> +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_intr *map = pmc->intr_map; - struct nouveau_device *device = nv_device(pmc); + const struct nouveau_mc_oclass *oclass = (void *)nv_object(pmc)->oclass; + const struct nouveau_mc_intr *map = oclass->intr; struct nouveau_subdev *unit; - u32 stat, intr; - - intr = stat = nv_rd32(pmc, 0x000100); - if (intr == 0xffffffff) - return IRQ_NONE; - while (stat && map->stat) { - if (stat & map->stat) { - unit = nouveau_subdev(pmc, map->unit); - if (unit && unit->intr) - unit->intr(unit); - intr &= ~map->stat; - } - map++; - } + u32 intr; + nv_wr32(pmc, 0x000140, 0x00000000); + nv_rd32(pmc, 0x000140); + intr = nouveau_mc_intr_mask(pmc); if (pmc->use_msi) - nv_wr08(pmc->base.base.parent, 0x00088068, 0xff); + oclass->msi_rearm(pmc); if (intr) { - nv_error(pmc, "unknown intr 0x%08x\n", stat); + 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); } - if (stat == IRQ_HANDLED) - pm_runtime_mark_last_busy(&device->pdev->dev); - return stat ? IRQ_HANDLED : IRQ_NONE; + nv_wr32(pmc, 0x000140, 0x00000001); + return intr ? IRQ_HANDLED : IRQ_NONE; } int @@ -91,37 +101,42 @@ _nouveau_mc_dtor(struct nouveau_object *object) int nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine, - struct nouveau_oclass *oclass, - const struct nouveau_mc_intr *intr_map, - int length, void **pobject) + 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, oclass, 0, "PMC", + ret = nouveau_subdev_create_(parent, engine, bclass, 0, "PMC", "master", length, pobject); pmc = *pobject; if (ret) return ret; - pmc->intr_map = intr_map; - switch (device->pdev->device & 0x0ff0) { - case 0x00f0: /* BR02? */ - case 0x02e0: /* BR02? */ - pmc->use_msi = false; + case 0x00f0: + case 0x02e0: + /* BR02? NFI how these would be handled yet exactly */ break; default: - pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI", false); + switch (device->chipset) { + case 0xaa: break; /* reported broken, nv also disable it */ + 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) { - pmc->use_msi = pci_enable_msi(device->pdev) == 0; - if (pmc->use_msi) { - nv_info(pmc, "MSI interrupts enabled\n"); - nv_wr08(device, 0x00088068, 0xff); - } + nv_info(pmc, "MSI interrupts enabled\n"); + oclass->msi_rearm(pmc); } - break; + } else { + pmc->use_msi = false; } ret = request_irq(device->pdev->irq, nouveau_mc_intr, |