drivers/gpu/drm/nouveau/nvkm/subdev/fb/ga102.c
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ga102.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/nouveau/nvkm/subdev/fb/ga102.c- Extension
.c- Size
- 2540 bytes
- Lines
- 74
- 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
gf100.hram.hsubdev/gsp.hengine/nvdec.h
Detected Declarations
function filesfunction ga102_fb_oneinitfunction ga102_fb_new
Annotated Snippet
#include "gf100.h"
#include "ram.h"
#include <subdev/gsp.h>
#include <engine/nvdec.h>
u64
ga102_fb_vidmem_size(struct nvkm_fb *fb)
{
return (u64)nvkm_rd32(fb->subdev.device, 0x1183a4) << 20;
}
static int
ga102_fb_oneinit(struct nvkm_fb *fb)
{
struct nvkm_subdev *subdev = &fb->subdev;
nvkm_falcon_fw_ctor_hs_v2(&ga102_flcn_fw, "mem-unlock", subdev, "nvdec/scrubber",
0, &subdev->device->nvdec[0]->falcon, &fb->vpr_scrubber);
return gf100_fb_oneinit(fb);
}
static const struct nvkm_fb_func
ga102_fb = {
.dtor = gf100_fb_dtor,
.oneinit = ga102_fb_oneinit,
.init = gm200_fb_init,
.init_page = gv100_fb_init_page,
.init_unkn = gp100_fb_init_unkn,
.sysmem.flush_page_init = gf100_fb_sysmem_flush_page_init,
.vidmem.size = ga102_fb_vidmem_size,
.ram_new = gp102_ram_new,
.default_bigpage = 16,
.vpr.scrub_required = tu102_fb_vpr_scrub_required,
.vpr.scrub = gp102_fb_vpr_scrub,
};
int
ga102_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
{
if (nvkm_gsp_rm(device->gsp))
return r535_fb_new(&ga102_fb, device, type, inst, pfb);
return gf100_fb_new_(&ga102_fb, device, type, inst, pfb);
}
MODULE_FIRMWARE("nvidia/ga102/nvdec/scrubber.bin");
MODULE_FIRMWARE("nvidia/ga103/nvdec/scrubber.bin");
MODULE_FIRMWARE("nvidia/ga104/nvdec/scrubber.bin");
MODULE_FIRMWARE("nvidia/ga106/nvdec/scrubber.bin");
MODULE_FIRMWARE("nvidia/ga107/nvdec/scrubber.bin");
Annotation
- Immediate include surface: `gf100.h`, `ram.h`, `subdev/gsp.h`, `engine/nvdec.h`.
- Detected declarations: `function files`, `function ga102_fb_oneinit`, `function ga102_fb_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.