drivers/gpu/drm/nouveau/nvkm/subdev/ltc/ga102.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/ga102.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/nvkm/subdev/ltc/ga102.c
Extension
.c
Size
2186 bytes
Lines
63
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

#include "priv.h"

#include <subdev/gsp.h>

static void
ga102_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])
{
	struct nvkm_device *device = ltc->subdev.device;

	nvkm_mask(device, 0x17e338, 0x0000001f, i);
	nvkm_wr32(device, 0x17e33c, color[0]);
	nvkm_wr32(device, 0x17e340, color[1]);
	nvkm_wr32(device, 0x17e344, color[2]);
	nvkm_wr32(device, 0x17e348, color[3]);
}

static const struct nvkm_ltc_func
ga102_ltc = {
	.oneinit = gp100_ltc_oneinit,
	.init = gp100_ltc_init,
	.intr = gp100_ltc_intr,
	.cbc_clear = gm107_ltc_cbc_clear,
	.cbc_wait = gm107_ltc_cbc_wait,
	.zbc_color = 31,
	.zbc_depth = 16,
	.zbc_clear_color = ga102_ltc_zbc_clear_color,
	.zbc_clear_depth = gm107_ltc_zbc_clear_depth,
	.zbc_clear_stencil = gp102_ltc_zbc_clear_stencil,
	.invalidate = gf100_ltc_invalidate,
	.flush = gf100_ltc_flush,
};

int
ga102_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
	      struct nvkm_ltc **pltc)
{
	if (nvkm_gsp_rm(device->gsp))
		return -ENODEV;

	return nvkm_ltc_new_(&ga102_ltc, device, type, inst, pltc);
}

Annotation

Implementation Notes