diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h index 9d2cd2006250..ce6569f365a7 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h @@ -12,6 +12,7 @@ struct nouveau_mc_intr { struct nouveau_mc { struct nouveau_subdev base; const struct nouveau_mc_intr *intr_map; + bool use_msi; }; static inline struct nouveau_mc * diff --git a/drivers/gpu/drm/nouveau/core/os.h b/drivers/gpu/drm/nouveau/core/os.h index d48683a82585..191e739f30d1 100644 --- a/drivers/gpu/drm/nouveau/core/os.h +++ b/drivers/gpu/drm/nouveau/core/os.h @@ -19,6 +19,7 @@ #include #include #include +#include #include diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c index 20f9a538746e..37712a6df923 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c @@ -23,7 +23,7 @@ */ #include -#include +#include static irqreturn_t nouveau_mc_intr(int irq, void *arg) @@ -47,6 +47,9 @@ 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); } @@ -81,6 +84,8 @@ _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); } @@ -102,6 +107,23 @@ nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine, 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)