drivers/gpu/drm/nouveau/dispnv50/corec57d.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/dispnv50/corec57d.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/dispnv50/corec57d.c
Extension
.c
Size
2979 bytes
Lines
83
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 "core.h"
#include "head.h"

#include <nvif/class.h>
#include <nvif/pushc37b.h>

#include <nvhw/class/clc57d.h>

static int
corec57d_init(struct nv50_core *core)
{
	struct nvif_push *push = &core->chan.push;
	const u32 windows = 8; /*XXX*/
	int ret, i;

	if ((ret = PUSH_WAIT(push, 2 + windows * 5)))
		return ret;

	PUSH_MTHD(push, NVC57D, SET_CONTEXT_DMA_NOTIFIER, core->chan.sync.handle);

	for (i = 0; i < windows; i++) {
		PUSH_MTHD(push, NVC57D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS(i),
			  NVDEF(NVC57D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, RGB_PACKED1BPP, TRUE) |
			  NVDEF(NVC57D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, RGB_PACKED2BPP, TRUE) |
			  NVDEF(NVC57D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, RGB_PACKED4BPP, TRUE) |
			  NVDEF(NVC57D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, RGB_PACKED8BPP, TRUE),

					WINDOW_SET_WINDOW_ROTATED_FORMAT_USAGE_BOUNDS(i), 0x00000000);

		PUSH_MTHD(push, NVC57D, WINDOW_SET_WINDOW_USAGE_BOUNDS(i),
			  NVVAL(NVC57D, WINDOW_SET_WINDOW_USAGE_BOUNDS, MAX_PIXELS_FETCHED_PER_LINE, 0x7fff) |
			  NVDEF(NVC57D, WINDOW_SET_WINDOW_USAGE_BOUNDS, ILUT_ALLOWED, TRUE) |
			  NVDEF(NVC57D, WINDOW_SET_WINDOW_USAGE_BOUNDS, INPUT_SCALER_TAPS, TAPS_2) |
			  NVDEF(NVC57D, WINDOW_SET_WINDOW_USAGE_BOUNDS, UPSCALING_ALLOWED, FALSE));
	}

	core->assign_windows = true;
	return PUSH_KICK(push);
}

static const struct nv50_core_func
corec57d = {
	.init = corec57d_init,
	.ntfy_init = corec37d_ntfy_init,
	.caps_init = corec37d_caps_init,
	.caps_class = GV100_DISP_CAPS,
	.ntfy_wait_done = corec37d_ntfy_wait_done,
	.update = corec37d_update,
	.wndw.owner = corec37d_wndw_owner,
	.head = &headc57d,
	.sor = &sorc37d,
#if IS_ENABLED(CONFIG_DEBUG_FS)
	.crc = &crcc57d,
#endif
};

int
corec57d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
{
	return core507d_new_(&corec57d, drm, oclass, pcore);
}

Annotation

Implementation Notes