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 | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c index 1c0330b8c9a4..37712a6df923 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c @@ -23,16 +23,20 @@ */ #include <subdev/mc.h> +#include <core/option.h> 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); 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); @@ -43,10 +47,15 @@ nouveau_mc_intr(int irq, void *arg) map++; } + if (pmc->use_msi) + nv_wr08(pmc->base.base.parent, 0x00088068, 0xff); + if (intr) { 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; } @@ -75,12 +84,16 @@ _nouveau_mc_dtor(struct nouveau_object *object) struct nouveau_device *device = nv_device(object); struct nouveau_mc *pmc = (void *)object; free_irq(device->pdev->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 *oclass, int length, void **pobject) + struct nouveau_oclass *oclass, + const struct nouveau_mc_intr *intr_map, + int length, void **pobject) { struct nouveau_device *device = nv_device(parent); struct nouveau_mc *pmc; @@ -92,6 +105,25 @@ nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine, if (ret) return ret; + pmc->intr_map = intr_map; + + switch (device->pdev->device & 0x0ff0) { + case 0x00f0: /* BR02? */ + case 0x02e0: /* BR02? */ + pmc->use_msi = false; + break; + default: + pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI", true); + 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); + } + } + break; + } + ret = request_irq(device->pdev->irq, nouveau_mc_intr, IRQF_SHARED, "nouveau", pmc); if (ret < 0) |