drivers/gpu/drm/nouveau/dispnv50/base827c.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/dispnv50/base827c.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/dispnv50/base827c.c
Extension
.c
Size
3772 bytes
Lines
105
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 "base.h"

#include <nvif/push507c.h>

#include <nvhw/class/cl827c.h>

static int
base827c_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
{
	struct nvif_push *push = &wndw->wndw.push;
	int ret;

	if ((ret = PUSH_WAIT(push, 13)))
		return ret;

	PUSH_MTHD(push, NV827C, SET_PRESENT_CONTROL,
		  NVVAL(NV827C, SET_PRESENT_CONTROL, BEGIN_MODE, asyw->image.mode) |
		  NVVAL(NV827C, SET_PRESENT_CONTROL, MIN_PRESENT_INTERVAL, asyw->image.interval));

	PUSH_MTHD(push, NV827C, SET_CONTEXT_DMAS_ISO(0), asyw->image.handle, 1);

	if (asyw->image.format == NV827C_SURFACE_SET_PARAMS_FORMAT_RF16_GF16_BF16_AF16) {
		PUSH_MTHD(push, NV827C, SET_PROCESSING,
			  NVDEF(NV827C, SET_PROCESSING, USE_GAIN_OFS, ENABLE),

					SET_CONVERSION,
			  NVVAL(NV827C, SET_CONVERSION, GAIN, 0) |
			  NVVAL(NV827C, SET_CONVERSION, OFS, 0x64));
	} else {
		PUSH_MTHD(push, NV827C, SET_PROCESSING,
			  NVDEF(NV827C, SET_PROCESSING, USE_GAIN_OFS, DISABLE),

					SET_CONVERSION,
			  NVVAL(NV827C, SET_CONVERSION, GAIN, 0) |
			  NVVAL(NV827C, SET_CONVERSION, OFS, 0));
	}

	PUSH_MTHD(push, NV827C, SURFACE_SET_OFFSET(0, 0), asyw->image.offset[0] >> 8,
				SURFACE_SET_OFFSET(0, 1), 0x00000000,

				SURFACE_SET_SIZE(0),
		  NVVAL(NV827C, SURFACE_SET_SIZE, WIDTH, asyw->image.w) |
		  NVVAL(NV827C, SURFACE_SET_SIZE, HEIGHT, asyw->image.h),

				SURFACE_SET_STORAGE(0),
		  NVVAL(NV827C, SURFACE_SET_STORAGE, BLOCK_HEIGHT, asyw->image.blockh) |
		  NVVAL(NV827C, SURFACE_SET_STORAGE, PITCH, asyw->image.pitch[0] >> 8) |
		  NVVAL(NV827C, SURFACE_SET_STORAGE, PITCH, asyw->image.blocks[0]) |
		  NVVAL(NV827C, SURFACE_SET_STORAGE, MEMORY_LAYOUT, asyw->image.layout),

				SURFACE_SET_PARAMS(0),
		  NVVAL(NV827C, SURFACE_SET_PARAMS, FORMAT, asyw->image.format) |
		  NVDEF(NV827C, SURFACE_SET_PARAMS, SUPER_SAMPLE, X1_AA) |
		  NVDEF(NV827C, SURFACE_SET_PARAMS, GAMMA, LINEAR) |
		  NVDEF(NV827C, SURFACE_SET_PARAMS, LAYOUT, FRM));
	return 0;
}

static const struct nv50_wndw_func
base827c = {
	.acquire = base507c_acquire,
	.release = base507c_release,
	.sema_set = base507c_sema_set,
	.sema_clr = base507c_sema_clr,
	.ntfy_reset = base507c_ntfy_reset,
	.ntfy_set = base507c_ntfy_set,
	.ntfy_clr = base507c_ntfy_clr,
	.ntfy_wait_begun = base507c_ntfy_wait_begun,
	.olut_core = 1,
	.xlut_set = base507c_xlut_set,
	.xlut_clr = base507c_xlut_clr,
	.image_set = base827c_image_set,
	.image_clr = base507c_image_clr,
	.update = base507c_update,
};

int
base827c_new(struct nouveau_drm *drm, int head, s32 oclass,
	     struct nv50_wndw **pwndw)
{
	return base507c_new_(&base827c, base507c_format, drm, head, oclass,
			     0x00000002 << (head * 8), pwndw);
}

Annotation

Implementation Notes