drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c
Extension
.c
Size
4547 bytes
Lines
151
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 (addr >= mmio[0] && addr <= mmio[1]) {
			u32 part = (addr / mmio[2]) & 7;
			if (!init->r001540)
				init->r001540 = nvkm_rd32(device, 0x001540);
			if (part >= hweight8((init->r001540 >> 16) & 0xff))
				return ~0;
			return addr;
		}
		mmio += 3;
	}

	return addr;
}

static const struct nvkm_devinit_func
gt215_devinit = {
	.preinit = nv50_devinit_preinit,
	.init = nv50_devinit_init,
	.post = nv04_devinit_post,
	.mmio = gt215_devinit_mmio,
	.pll_set = gt215_devinit_pll_set,
	.disable = gt215_devinit_disable,
};

int
gt215_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
		  struct nvkm_devinit **pinit)
{
	return nv50_devinit_new_(&gt215_devinit, device, type, inst, pinit);
}

Annotation

Implementation Notes