drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c- Extension
.c- Size
- 3220 bytes
- Lines
- 97
- 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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
priv.hsubdev/acr.hnvfw/flcn.hnvfw/pmu.h
Detected Declarations
function Copyrightfunction gp10b_pmu_acr_bootstrap_multiple_falconsfunction gp10b_pmu_new
Annotated Snippet
#include "priv.h"
#include <subdev/acr.h>
#include <nvfw/flcn.h>
#include <nvfw/pmu.h>
static int
gp10b_pmu_acr_bootstrap_multiple_falcons_cb(void *priv,
struct nvfw_falcon_msg *hdr)
{
struct nv_pmu_acr_bootstrap_multiple_falcons_msg *msg =
container_of(hdr, typeof(*msg), msg.hdr);
return msg->falcon_mask;
}
static int
gp10b_pmu_acr_bootstrap_multiple_falcons(struct nvkm_falcon *falcon, u32 mask)
{
struct nvkm_pmu *pmu = container_of(falcon, typeof(*pmu), falcon);
struct nv_pmu_acr_bootstrap_multiple_falcons_cmd cmd = {
.cmd.hdr.unit_id = NV_PMU_UNIT_ACR,
.cmd.hdr.size = sizeof(cmd),
.cmd.cmd_type = NV_PMU_ACR_CMD_BOOTSTRAP_MULTIPLE_FALCONS,
.flags = NV_PMU_ACR_BOOTSTRAP_MULTIPLE_FALCONS_FLAGS_RESET_YES,
.falcon_mask = mask,
.wpr_lo = 0, /*XXX*/
.wpr_hi = 0, /*XXX*/
};
int ret;
ret = nvkm_falcon_cmdq_send(pmu->hpq, &cmd.cmd.hdr,
gp10b_pmu_acr_bootstrap_multiple_falcons_cb,
&pmu->subdev, msecs_to_jiffies(1000));
if (ret >= 0) {
if (ret != cmd.falcon_mask)
ret = -EIO;
else
ret = 0;
}
return ret;
}
static const struct nvkm_acr_lsf_func
gp10b_pmu_acr = {
.flags = NVKM_ACR_LSF_DMACTL_REQ_CTX,
.bld_size = sizeof(struct loader_config),
.bld_write = gm20b_pmu_acr_bld_write,
.bld_patch = gm20b_pmu_acr_bld_patch,
.bootstrap_falcons = BIT_ULL(NVKM_ACR_LSF_PMU) |
BIT_ULL(NVKM_ACR_LSF_FECS) |
BIT_ULL(NVKM_ACR_LSF_GPCCS),
.bootstrap_falcon = gm20b_pmu_acr_bootstrap_falcon,
.bootstrap_multiple_falcons = gp10b_pmu_acr_bootstrap_multiple_falcons,
};
#if IS_ENABLED(CONFIG_ARCH_TEGRA_186_SOC)
MODULE_FIRMWARE("nvidia/gp10b/pmu/desc.bin");
MODULE_FIRMWARE("nvidia/gp10b/pmu/image.bin");
MODULE_FIRMWARE("nvidia/gp10b/pmu/sig.bin");
#endif
static const struct nvkm_pmu_fwif
gp10b_pmu_fwif[] = {
{ 0, gm20b_pmu_load, &gm20b_pmu, &gp10b_pmu_acr },
{ -1, gm200_pmu_nofw, &gm20b_pmu },
{}
};
int
gp10b_pmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_pmu **ppmu)
{
return nvkm_pmu_new_(gp10b_pmu_fwif, device, type, inst, ppmu);
}
Annotation
- Immediate include surface: `priv.h`, `subdev/acr.h`, `nvfw/flcn.h`, `nvfw/pmu.h`.
- Detected declarations: `function Copyright`, `function gp10b_pmu_acr_bootstrap_multiple_falcons`, `function gp10b_pmu_new`.
- Atlas domain: Driver Families / drivers/gpu.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.