drivers/gpu/drm/nouveau/dispnv50/wndwca7e.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/nouveau/dispnv50/wndwca7e.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/nouveau/dispnv50/wndwca7e.c
Extension
.c
Size
7814 bytes
Lines
243
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 "wndw.h"
#include "atom.h"

#include <nvif/pushc97b.h>

#include <nvhw/class/clca7e.h>

#include <nouveau_bo.h>

static int
wndwca7e_image_clr(struct nv50_wndw *wndw)
{
	struct nvif_push *push = &wndw->wndw.push;
	int ret;

	ret = PUSH_WAIT(push, 4);
	if (ret)
		return ret;

	PUSH_MTHD(push, NVCA7E, SET_PRESENT_CONTROL,
		  NVVAL(NVCA7E, SET_PRESENT_CONTROL, MIN_PRESENT_INTERVAL, 0) |
		  NVDEF(NVCA7E, SET_PRESENT_CONTROL, BEGIN_MODE, NON_TEARING));

	PUSH_MTHD(push, NVCA7E, SET_SURFACE_ADDRESS_LO_ISO(0),
		  NVDEF(NVCA7E, SET_SURFACE_ADDRESS_LO_ISO, ENABLE, DISABLE));

	return 0;
}

static int
wndwca7e_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
{
	const u32 iso0_hi = upper_32_bits(asyw->image.offset[0]);
	const u32 iso0_lo = lower_32_bits(asyw->image.offset[0]);
	struct nvif_push *push = &wndw->wndw.push;
	int ret, kind;

	if (asyw->image.kind)
		kind = NVCA7E_SET_SURFACE_ADDRESS_LO_ISO_KIND_BLOCKLINEAR;
	else
		kind = NVCA7E_SET_SURFACE_ADDRESS_LO_ISO_KIND_PITCH;

	ret = PUSH_WAIT(push, 17);
	if (ret)
		return ret;

	PUSH_MTHD(push, NVCA7E, SET_SURFACE_ADDRESS_HI_ISO(0), iso0_hi);

	PUSH_MTHD(push, NVCA7E, SET_SURFACE_ADDRESS_LO_ISO(0),
		  NVVAL(NVCA7E, SET_SURFACE_ADDRESS_LO_ISO, ADDRESS_LO, iso0_lo >> 4) |
		  NVDEF(NVCA7E, SET_SURFACE_ADDRESS_LO_ISO, TARGET, PHYSICAL_NVM) |
		  NVVAL(NVCA7E, SET_SURFACE_ADDRESS_LO_ISO, KIND, kind) |
		  NVDEF(NVCA7E, SET_SURFACE_ADDRESS_LO_ISO, ENABLE, ENABLE));

	PUSH_MTHD(push, NVCA7E, SET_PRESENT_CONTROL,
		  NVVAL(NVCA7E, SET_PRESENT_CONTROL, MIN_PRESENT_INTERVAL, asyw->image.interval) |
		  NVVAL(NVCA7E, SET_PRESENT_CONTROL, BEGIN_MODE, asyw->image.mode) |
		  NVDEF(NVCA7E, SET_PRESENT_CONTROL, TIMESTAMP_MODE, DISABLE));

	PUSH_MTHD(push, NVCA7E, SET_SIZE,
		  NVVAL(NVCA7E, SET_SIZE, WIDTH, asyw->image.w) |
		  NVVAL(NVCA7E, SET_SIZE, HEIGHT, asyw->image.h),

				SET_STORAGE,
		  NVVAL(NVCA7E, SET_STORAGE, BLOCK_HEIGHT, asyw->image.blockh),

				SET_PARAMS,
		  NVVAL(NVCA7E, SET_PARAMS, FORMAT, asyw->image.format) |
		  NVDEF(NVCA7E, SET_PARAMS, CLAMP_BEFORE_BLEND, DISABLE) |
		  NVDEF(NVCA7E, SET_PARAMS, SWAP_UV, DISABLE) |
		  NVDEF(NVCA7E, SET_PARAMS, FMT_ROUNDING_MODE, ROUND_TO_NEAREST),

				SET_PLANAR_STORAGE(0),
		  NVVAL(NVCA7E, SET_PLANAR_STORAGE, PITCH, asyw->image.blocks[0]) |
		  NVVAL(NVCA7E, SET_PLANAR_STORAGE, PITCH, asyw->image.pitch[0] >> 6));

	PUSH_MTHD(push, NVCA7E, SET_POINT_IN(0),
		  NVVAL(NVCA7E, SET_POINT_IN, X, asyw->state.src_x >> 16) |
		  NVVAL(NVCA7E, SET_POINT_IN, Y, asyw->state.src_y >> 16));

	PUSH_MTHD(push, NVCA7E, SET_SIZE_IN,
		  NVVAL(NVCA7E, SET_SIZE_IN, WIDTH, asyw->state.src_w >> 16) |
		  NVVAL(NVCA7E, SET_SIZE_IN, HEIGHT, asyw->state.src_h >> 16));

	PUSH_MTHD(push, NVCA7E, SET_SIZE_OUT,
		  NVVAL(NVCA7E, SET_SIZE_OUT, WIDTH, asyw->state.crtc_w) |
		  NVVAL(NVCA7E, SET_SIZE_OUT, HEIGHT, asyw->state.crtc_h));

	return 0;
}

Annotation

Implementation Notes