drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r570/gsp.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r570/gsp.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r570/gsp.c
Extension
.c
Size
6248 bytes
Lines
217
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (gpc_mask & BIT(gpc)) {
			ret = r570_gr_tpc_mask(gsp, gpc, &tpc_mask);
			if (ret)
				return ret;

			gsp->gr.tpcs += hweight32(tpc_mask);
			gsp->gr.gpcs++;
		}
	}

	return 0;
}

static void
r570_gsp_acpi_info(struct nvkm_gsp *gsp, ACPI_METHOD_DATA *acpi)
{
#if defined(CONFIG_ACPI) && defined(CONFIG_X86)
	acpi_handle handle = ACPI_HANDLE(gsp->subdev.device->dev);

	if (!handle)
		return;

	acpi->bValid = 1;

	r535_gsp_acpi_dod(handle, &acpi->dodMethodData);
	r535_gsp_acpi_jt(handle, &acpi->jtMethodData);
	r535_gsp_acpi_caps(handle, &acpi->capsMethodData);
#endif
}

static int
r570_gsp_set_system_info(struct nvkm_gsp *gsp)
{
	struct nvkm_device *device = gsp->subdev.device;
	struct pci_dev *pdev = container_of(device, struct nvkm_device_pci, device)->pdev;
	GspSystemInfo *info;

	if (WARN_ON(device->type == NVKM_DEVICE_TEGRA))
		return -ENOSYS;

	info = nvkm_gsp_rpc_get(gsp, NV_VGPU_MSG_FUNCTION_GSP_SET_SYSTEM_INFO, sizeof(*info));
	if (IS_ERR(info))
		return PTR_ERR(info);

	info->gpuPhysAddr = device->func->resource_addr(device, NVKM_BAR0_PRI);
	info->gpuPhysFbAddr = device->func->resource_addr(device, NVKM_BAR1_FB);
	info->gpuPhysInstAddr = device->func->resource_addr(device, NVKM_BAR2_INST);
	info->nvDomainBusDeviceFunc = pci_dev_id(pdev);
	info->maxUserVa = TASK_SIZE;
	info->pciConfigMirrorBase = device->pci->func->cfg.addr;
	info->pciConfigMirrorSize = device->pci->func->cfg.size;
	info->PCIDeviceID = (pdev->device << 16) | pdev->vendor;
	info->PCISubDeviceID = (pdev->subsystem_device << 16) | pdev->subsystem_vendor;
	info->PCIRevisionID = pdev->revision;
	r570_gsp_acpi_info(gsp, &info->acpiMethodData);
	info->bIsPrimary = video_is_primary_device(device->dev);
	info->bPreserveVideoMemoryAllocations = false;

	return nvkm_gsp_rpc_wr(gsp, info, NVKM_GSP_RPC_REPLY_NOSEQ);
}

static void
r570_gsp_set_rmargs(struct nvkm_gsp *gsp, bool resume)
{
	GSP_ARGUMENTS_CACHED *args;

	args = gsp->rmargs.data;
	args->messageQueueInitArguments.sharedMemPhysAddr = gsp->shm.mem.addr;
	args->messageQueueInitArguments.pageTableEntryCount = gsp->shm.ptes.nr;
	args->messageQueueInitArguments.cmdQueueOffset =
		(u8 *)gsp->shm.cmdq.ptr - (u8 *)gsp->shm.mem.data;
	args->messageQueueInitArguments.statQueueOffset =
		(u8 *)gsp->shm.msgq.ptr - (u8 *)gsp->shm.mem.data;

	if (!resume) {
		args->srInitArguments.oldLevel = 0;
		args->srInitArguments.flags = 0;
		args->srInitArguments.bInPMTransition = 0;
	} else {
		args->srInitArguments.oldLevel = NV2080_CTRL_GPU_SET_POWER_STATE_GPU_LEVEL_3;
		args->srInitArguments.flags = 0;
		args->srInitArguments.bInPMTransition = 1;
	}

	args->bDmemStack = 1;
}

const struct nvkm_rm_api_gsp
r570_gsp = {
	.set_rmargs = r570_gsp_set_rmargs,

Annotation

Implementation Notes