nvidia-open-gpu-kernel-modules/kernel-open/common/inc/nvkms-api-types.h

687 lines
22 KiB
C

/*
* SPDX-FileCopyrightText: Copyright (c) 2014-2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#if !defined(NVKMS_API_TYPES_H)
#define NVKMS_API_TYPES_H
#include <nvtypes.h>
#include <nvmisc.h>
#include <nvlimits.h>
#define NVKMS_MAX_SUBDEVICES NV_MAX_SUBDEVICES
#define NVKMS_MAX_HEADS_PER_DISP NV_MAX_HEADS
#define NVKMS_LEFT 0
#define NVKMS_RIGHT 1
#define NVKMS_MAX_EYES 2
#define NVKMS_MAIN_LAYER 0
#define NVKMS_OVERLAY_LAYER 1
#define NVKMS_MAX_LAYERS_PER_HEAD 8
#define NVKMS_MAX_PLANES_PER_SURFACE 3
#define NVKMS_DP_ADDRESS_STRING_LENGTH 64
#define NVKMS_DEVICE_ID_TEGRA 0x0000ffff
#define NVKMS_MAX_SUPERFRAME_VIEWS 4
#define NVKMS_LOG2_LUT_ARRAY_SIZE 10
#define NVKMS_LUT_ARRAY_SIZE (1 << NVKMS_LOG2_LUT_ARRAY_SIZE)
typedef NvU32 NvKmsDeviceHandle;
typedef NvU32 NvKmsDispHandle;
typedef NvU32 NvKmsConnectorHandle;
typedef NvU32 NvKmsSurfaceHandle;
typedef NvU32 NvKmsFrameLockHandle;
typedef NvU32 NvKmsDeferredRequestFifoHandle;
typedef NvU32 NvKmsSwapGroupHandle;
typedef NvU32 NvKmsVblankSyncObjectHandle;
typedef NvU32 NvKmsVblankSemControlHandle;
struct NvKmsSize {
NvU16 width;
NvU16 height;
};
struct NvKmsPoint {
NvU16 x;
NvU16 y;
};
struct NvKmsSignedPoint {
NvS16 x;
NvS16 y;
};
struct NvKmsRect {
NvU16 x;
NvU16 y;
NvU16 width;
NvU16 height;
};
/*
* A 3x3 row-major matrix.
*
* The elements are 32-bit single-precision IEEE floating point values. The
* floating point bit pattern should be stored in NvU32s to be passed into the
* kernel.
*/
struct NvKmsMatrix {
NvU32 m[3][3];
};
typedef enum {
NVKMS_CONNECTOR_TYPE_DP = 0,
NVKMS_CONNECTOR_TYPE_VGA = 1,
NVKMS_CONNECTOR_TYPE_DVI_I = 2,
NVKMS_CONNECTOR_TYPE_DVI_D = 3,
NVKMS_CONNECTOR_TYPE_ADC = 4,
NVKMS_CONNECTOR_TYPE_LVDS = 5,
NVKMS_CONNECTOR_TYPE_HDMI = 6,
NVKMS_CONNECTOR_TYPE_USBC = 7,
NVKMS_CONNECTOR_TYPE_DSI = 8,
NVKMS_CONNECTOR_TYPE_DP_SERIALIZER = 9,
NVKMS_CONNECTOR_TYPE_UNKNOWN = 10,
NVKMS_CONNECTOR_TYPE_MAX = NVKMS_CONNECTOR_TYPE_UNKNOWN,
} NvKmsConnectorType;
static inline
const char *NvKmsConnectorTypeString(const NvKmsConnectorType connectorType)
{
switch (connectorType) {
case NVKMS_CONNECTOR_TYPE_DP: return "DP";
case NVKMS_CONNECTOR_TYPE_VGA: return "VGA";
case NVKMS_CONNECTOR_TYPE_DVI_I: return "DVI-I";
case NVKMS_CONNECTOR_TYPE_DVI_D: return "DVI-D";
case NVKMS_CONNECTOR_TYPE_ADC: return "ADC";
case NVKMS_CONNECTOR_TYPE_LVDS: return "LVDS";
case NVKMS_CONNECTOR_TYPE_HDMI: return "HDMI";
case NVKMS_CONNECTOR_TYPE_USBC: return "USB-C";
case NVKMS_CONNECTOR_TYPE_DSI: return "DSI";
case NVKMS_CONNECTOR_TYPE_DP_SERIALIZER: return "DP-SERIALIZER";
default: break;
}
return "Unknown";
}
typedef enum {
NVKMS_CONNECTOR_SIGNAL_FORMAT_VGA = 0,
NVKMS_CONNECTOR_SIGNAL_FORMAT_LVDS = 1,
NVKMS_CONNECTOR_SIGNAL_FORMAT_TMDS = 2,
NVKMS_CONNECTOR_SIGNAL_FORMAT_DP = 3,
NVKMS_CONNECTOR_SIGNAL_FORMAT_DSI = 4,
NVKMS_CONNECTOR_SIGNAL_FORMAT_UNKNOWN = 5,
NVKMS_CONNECTOR_SIGNAL_FORMAT_MAX =
NVKMS_CONNECTOR_SIGNAL_FORMAT_UNKNOWN,
} NvKmsConnectorSignalFormat;
/*!
* Description of Notifiers and Semaphores (Non-isochronous (NISO) surfaces).
*
* When flipping, the client can optionally specify a notifier and/or
* a semaphore to use with the flip. The surfaces used for these
* should be registered with NVKMS to get an NvKmsSurfaceHandle.
*
* NvKmsNIsoSurface::offsetInWords indicates the starting location, in
* 32-bit words, within the surface where EVO should write the
* notifier or semaphore. Note that only the first 4096 bytes of a
* surface can be used by semaphores or notifiers; offsetInWords must
* allow for the semaphore or notifier to be written within the first
* 4096 bytes of the surface. I.e., this must be satisfied:
*
* ((offsetInWords * 4) + elementSizeInBytes) <= 4096
*
* Where elementSizeInBytes is:
*
* if NISO_FORMAT_FOUR_WORD*, elementSizeInBytes = 16
* if NISO_FORMAT_LEGACY,
* if overlay && notifier, elementSizeInBytes = 16
* else, elementSizeInBytes = 4
*
* Note that different GPUs support different semaphore and notifier formats.
* Check NvKmsAllocDeviceReply::validNIsoFormatMask to determine which are
* valid for the given device.
*
* Note also that FOUR_WORD and FOUR_WORD_NVDISPLAY are the same size, but
* FOUR_WORD uses a format compatible with display class 907[ce], and
* FOUR_WORD_NVDISPLAY uses a format compatible with c37e (actually defined by
* the NV_DISP_NOTIFIER definition in clc37d.h).
*/
enum NvKmsNIsoFormat {
NVKMS_NISO_FORMAT_LEGACY,
NVKMS_NISO_FORMAT_FOUR_WORD,
NVKMS_NISO_FORMAT_FOUR_WORD_NVDISPLAY,
};
enum NvKmsEventType {
NVKMS_EVENT_TYPE_DPY_CHANGED,
NVKMS_EVENT_TYPE_DYNAMIC_DPY_CONNECTED,
NVKMS_EVENT_TYPE_DYNAMIC_DPY_DISCONNECTED,
NVKMS_EVENT_TYPE_DPY_ATTRIBUTE_CHANGED,
NVKMS_EVENT_TYPE_FRAMELOCK_ATTRIBUTE_CHANGED,
NVKMS_EVENT_TYPE_FLIP_OCCURRED,
};
enum NvKmsFlipResult {
NV_KMS_FLIP_RESULT_SUCCESS = 0, /* Success */
NV_KMS_FLIP_RESULT_INVALID_PARAMS, /* Parameter validation failed */
NV_KMS_FLIP_RESULT_IN_PROGRESS, /* Flip would fail because an outstanding
flip containing changes that cannot be
queued is in progress */
};
typedef enum {
NV_EVO_SCALER_1TAP = 0,
NV_EVO_SCALER_2TAPS = 1,
NV_EVO_SCALER_3TAPS = 2,
NV_EVO_SCALER_5TAPS = 3,
NV_EVO_SCALER_8TAPS = 4,
NV_EVO_SCALER_TAPS_MIN = NV_EVO_SCALER_1TAP,
NV_EVO_SCALER_TAPS_MAX = NV_EVO_SCALER_8TAPS,
} NVEvoScalerTaps;
/* This structure describes the scaling bounds for a given layer. */
struct NvKmsScalingUsageBounds {
/*
* Maximum vertical downscale factor (scaled by 1024)
*
* For example, if the downscale factor is 1.5, then maxVDownscaleFactor
* would be 1.5 x 1024 = 1536.
*/
NvU16 maxVDownscaleFactor;
/*
* Maximum horizontal downscale factor (scaled by 1024)
*
* See the example above for maxVDownscaleFactor.
*/
NvU16 maxHDownscaleFactor;
/* Maximum vertical taps allowed */
NVEvoScalerTaps vTaps;
/* Whether vertical upscaling is allowed */
NvBool vUpscalingAllowed;
};
struct NvKmsUsageBounds {
struct {
NvBool usable;
struct NvKmsScalingUsageBounds scaling;
NvU64 supportedSurfaceMemoryFormats NV_ALIGN_BYTES(8);
} layer[NVKMS_MAX_LAYERS_PER_HEAD];
};
/*!
* Per-component arrays of NvU16s describing the LUT; used for both the input
* LUT and output LUT.
*/
struct NvKmsLutRamps {
NvU16 red[NVKMS_LUT_ARRAY_SIZE]; /*! in */
NvU16 green[NVKMS_LUT_ARRAY_SIZE]; /*! in */
NvU16 blue[NVKMS_LUT_ARRAY_SIZE]; /*! in */
};
/*
* A 3x4 row-major colorspace conversion matrix.
*
* The output color C' is the CSC matrix M times the column vector
* [ R, G, B, 1 ].
*
* Each entry in the matrix is a signed 2's-complement fixed-point number with
* 3 integer bits and 16 fractional bits.
*/
struct NvKmsCscMatrix {
NvS32 m[3][4];
};
#define NVKMS_IDENTITY_CSC_MATRIX \
(struct NvKmsCscMatrix){{ \
{ 0x10000, 0, 0, 0 }, \
{ 0, 0x10000, 0, 0 }, \
{ 0, 0, 0x10000, 0 } \
}}
/*!
* A color key match bit used in the blend equations and one can select the src
* or dst Color Key when blending. Assert key bit means match, de-assert key
* bit means nomatch.
*
* The src Color Key means using the key bit from the current layer, the dst
* Color Key means using key bit from the previous layer composition stage. The
* src or dst key bit will be inherited by blended pixel for the preparation of
* next blending, as dst Color Key.
*
* src: Forward the color key match bit from the current layer pixel to next layer
* composition stage.
*
* dst: Forward the color key match bit from the previous composition stage
* pixel to next layer composition stage.
*
* disable: Forward “1” to the next layer composition stage as the color key.
*/
enum NvKmsCompositionColorKeySelect {
NVKMS_COMPOSITION_COLOR_KEY_SELECT_DISABLE = 0,
NVKMS_COMPOSITION_COLOR_KEY_SELECT_SRC,
NVKMS_COMPOSITION_COLOR_KEY_SELECT_DST,
};
#define NVKMS_COMPOSITION_NUMBER_OF_COLOR_KEY_SELECTS 3
/*!
* Composition modes used for surfaces in general.
* The various types of composition are:
*
* Opaque: source pixels are opaque regardless of alpha,
* and will occlude the destination pixel.
*
* Alpha blending: aka opacity, which could be specified
* for a surface in its entirety, or on a per-pixel basis.
*
* Non-premultiplied: alpha value applies to source pixel,
* and also counter-weighs the destination pixel.
* Premultiplied: alpha already applied to source pixel,
* so it only counter-weighs the destination pixel.
*
* Color keying: use a color key structure to decide
* the criteria for matching and compositing.
* (See NVColorKey below.)
*/
enum NvKmsCompositionBlendingMode {
/*!
* Modes that use no other parameters.
*/
NVKMS_COMPOSITION_BLENDING_MODE_OPAQUE,
/*!
* Mode that ignores both per-pixel alpha provided
* by client and the surfaceAlpha, makes source pixel
* totally transparent.
*/
NVKMS_COMPOSITION_BLENDING_MODE_TRANSPARENT,
/*!
* Modes that use per-pixel alpha provided by client,
* and the surfaceAlpha must be set to 0.
*/
NVKMS_COMPOSITION_BLENDING_MODE_PREMULT_ALPHA,
NVKMS_COMPOSITION_BLENDING_MODE_NON_PREMULT_ALPHA,
/*!
* These use both the surface-wide and per-pixel alpha values.
* surfaceAlpha is treated as numerator ranging from 0 to 255
* of a fraction whose denominator is 255.
*/
NVKMS_COMPOSITION_BLENDING_MODE_PREMULT_SURFACE_ALPHA,
NVKMS_COMPOSITION_BLENDING_MODE_NON_PREMULT_SURFACE_ALPHA,
};
static inline NvBool
NvKmsIsCompositionModeUseAlpha(enum NvKmsCompositionBlendingMode mode)
{
return mode == NVKMS_COMPOSITION_BLENDING_MODE_PREMULT_ALPHA ||
mode == NVKMS_COMPOSITION_BLENDING_MODE_NON_PREMULT_ALPHA ||
mode == NVKMS_COMPOSITION_BLENDING_MODE_PREMULT_SURFACE_ALPHA ||
mode == NVKMS_COMPOSITION_BLENDING_MODE_NON_PREMULT_SURFACE_ALPHA;
}
/*!
* Abstract description of a color key.
*
* a, r, g, and b are component values in the same width as the framebuffer
* values being scanned out.
*
* match[ARGB] defines whether that component is considered when matching the
* color key -- TRUE means that the value of the corresponding component must
* match the given value for the given pixel to be considered a 'key match';
* FALSE means that the value of that component is not a key match criterion.
*/
typedef struct {
NvU16 a, r, g, b;
NvBool matchA, matchR, matchG, matchB;
} NVColorKey;
/*!
* Describes the composition parameters for the single layer.
*/
struct NvKmsCompositionParams {
enum NvKmsCompositionColorKeySelect colorKeySelect;
NVColorKey colorKey;
/*
* It is possible to assign different blending mode for match pixels and
* nomatch pixels. blendingMode[0] is used to blend a pixel with the color key
* match bit "0", and blendingMode[1] is used to blend a pixel with the color
* key match bit "1".
*
* But because of the hardware restrictions match and nomatch pixels can
* not use blending mode PREMULT_ALPHA, NON_PREMULT_ALPHA,
* PREMULT_SURFACE_ALPHA, and NON_PREMULT_SURFACE_ALPHA at once.
*/
enum NvKmsCompositionBlendingMode blendingMode[2];
NvU8 surfaceAlpha; /* Applies to all pixels of entire surface */
/*
* Defines the composition order. A smaller value moves the layer closer to
* the top (away from the background). No need to pick consecutive values,
* requirements are that the value should be different for each of the
* layers owned by the head and the value for the main layer should be
* the greatest one.
*
* Cursor always remains at the top of all other layers, this parameter
* has no effect on cursor. NVKMS assigns default depth to each of the
* supported layers, by default depth of the layer is calculated as
* (NVKMS_MAX_LAYERS_PER_HEAD - index of the layer). If depth is set to
* '0' then default depth value will get used.
*/
NvU8 depth;
};
/*!
* Describes the composition capabilities supported by the hardware for
* cursor or layer. It describes supported the color key selects and for each
* of the supported color key selects it describes supported blending modes
* for match and nomatch pixles.
*/
struct NvKmsCompositionCapabilities {
struct {
/*
* A bitmask of the supported blending modes for match and nomatch
* pixels. It should be the bitwise 'or' of one or more
* NVBIT(NVKMS_COMPOSITION_BLENDING_MODE_*) values.
*/
NvU32 supportedBlendModes[2];
} colorKeySelect[NVKMS_COMPOSITION_NUMBER_OF_COLOR_KEY_SELECTS];
/*
* A bitmask of the supported color key selects.
*
* It should be the bitwise 'or' of one or more
* NVBIT(NVKMS_COMPOSITION_COLOR_KEY_SELECT_*)
* values.
*/
NvU32 supportedColorKeySelects;
};
struct NvKmsLayerCapabilities {
/*!
* Whether Layer supports the window mode. If window mode is supported,
* then clients can set the layer's dimensions so that they're smaller than
* the viewport, and can also change the output position of the layer to a
* non-(0, 0) position.
*
* NOTE: Dimension changes are currently unsupported for the main layer,
* and output position changes for the main layer are currently only
* supported via IOCTL_SET_LAYER_POSITION but not via flips. Support for
* these is coming soon, via changes to flip code.
*/
NvBool supportsWindowMode :1;
/*!
* Whether layer supports ICtCp pipe.
*/
NvBool supportsICtCp :1;
/*!
* Describes the supported Color Key selects and blending modes for
* match and nomatch layer pixels.
*/
struct NvKmsCompositionCapabilities composition;
/*!
* Which NvKmsSurfaceMemoryFormat enum values are supported by the NVKMS
* device on the given scanout surface layer.
*
* Iff a particular enum NvKmsSurfaceMemoryFormat 'value' is supported,
* then (1 << value) will be set in the appropriate bitmask.
*
* Note that these bitmasks just report the static SW/HW capabilities,
* and are a superset of the formats that IMP may allow. Clients are
* still expected to honor the NvKmsUsageBounds for each head.
*/
NvU64 supportedSurfaceMemoryFormats NV_ALIGN_BYTES(8);
};
/*!
* Surface layouts.
*
* BlockLinear is the NVIDIA GPU native tiling format, arranging pixels into
* blocks or tiles for better locality during common GPU operations.
*
* Pitch is the naive "linear" surface layout with pixels laid out sequentially
* in memory line-by-line, optionally with some padding at the end of each line
* for alignment purposes.
*/
enum NvKmsSurfaceMemoryLayout {
NvKmsSurfaceMemoryLayoutBlockLinear = 0,
NvKmsSurfaceMemoryLayoutPitch = 1,
};
static inline const char *NvKmsSurfaceMemoryLayoutToString(
enum NvKmsSurfaceMemoryLayout layout)
{
switch (layout) {
default:
return "Unknown";
case NvKmsSurfaceMemoryLayoutBlockLinear:
return "BlockLinear";
case NvKmsSurfaceMemoryLayoutPitch:
return "Pitch";
}
}
typedef enum {
MUX_STATE_GET = 0,
MUX_STATE_INTEGRATED = 1,
MUX_STATE_DISCRETE = 2,
MUX_STATE_UNKNOWN = 3,
} NvMuxState;
enum NvKmsRotation {
NVKMS_ROTATION_0 = 0,
NVKMS_ROTATION_90 = 1,
NVKMS_ROTATION_180 = 2,
NVKMS_ROTATION_270 = 3,
NVKMS_ROTATION_MIN = NVKMS_ROTATION_0,
NVKMS_ROTATION_MAX = NVKMS_ROTATION_270,
};
struct NvKmsRRParams {
enum NvKmsRotation rotation;
NvBool reflectionX;
NvBool reflectionY;
};
/*!
* Convert each possible NvKmsRRParams to a unique integer [0..15],
* so that we can describe possible NvKmsRRParams with an NvU16 bitmask.
*
* E.g.
* rotation = 0, reflectionX = F, reflectionY = F == 0|0|0 == 0
* ...
* rotation = 270, reflectionX = T, reflectionY = T == 3|4|8 == 15
*/
static inline NvU8 NvKmsRRParamsToCapBit(const struct NvKmsRRParams *rrParams)
{
NvU8 bitPosition = (NvU8)rrParams->rotation;
if (rrParams->reflectionX) {
bitPosition |= NVBIT(2);
}
if (rrParams->reflectionY) {
bitPosition |= NVBIT(3);
}
return bitPosition;
}
/*
* NVKMS_MEMORY_ISO is used to tag surface memory that will be accessed via
* display's isochronous interface. Examples of this type of memory are pixel
* data and LUT entries.
*
* NVKMS_MEMORY_NISO is used to tag surface memory that will be accessed via
* display's non-isochronous interface. Examples of this type of memory are
* semaphores and notifiers.
*/
typedef enum {
NVKMS_MEMORY_ISO = 0,
NVKMS_MEMORY_NISO = 1,
} NvKmsMemoryIsoType;
typedef struct {
NvBool coherent;
NvBool noncoherent;
} NvKmsDispIOCoherencyModes;
enum NvKmsInputColorRange {
/*
* If DEFAULT is provided, driver will assume full range for RGB formats
* and limited range for YUV formats.
*/
NVKMS_INPUT_COLORRANGE_DEFAULT = 0,
NVKMS_INPUT_COLORRANGE_LIMITED = 1,
NVKMS_INPUT_COLORRANGE_FULL = 2,
};
enum NvKmsInputColorSpace {
/* Unknown colorspace; no de-gamma will be applied */
NVKMS_INPUT_COLORSPACE_NONE = 0,
/* Linear, Rec.709 [-0.5, 7.5) */
NVKMS_INPUT_COLORSPACE_SCRGB_LINEAR = 1,
/* PQ, Rec.2020 unity */
NVKMS_INPUT_COLORSPACE_BT2100_PQ = 2,
};
enum NvKmsOutputColorimetry {
NVKMS_OUTPUT_COLORIMETRY_DEFAULT = 0,
NVKMS_OUTPUT_COLORIMETRY_BT2100 = 1,
};
enum NvKmsOutputTf {
/*
* NVKMS itself won't apply any OETF (clients are still
* free to provide a custom OLUT)
*/
NVKMS_OUTPUT_TF_NONE = 0,
NVKMS_OUTPUT_TF_TRADITIONAL_GAMMA_SDR = 1,
NVKMS_OUTPUT_TF_PQ = 2,
};
/*!
* EOTF Data Byte 1 as per CTA-861-G spec.
* This is expected to match exactly with the spec.
*/
enum NvKmsInfoFrameEOTF {
NVKMS_INFOFRAME_EOTF_SDR_GAMMA = 0,
NVKMS_INFOFRAME_EOTF_HDR_GAMMA = 1,
NVKMS_INFOFRAME_EOTF_ST2084 = 2,
NVKMS_INFOFRAME_EOTF_HLG = 3,
};
/*!
* HDR Static Metadata Type1 Descriptor as per CEA-861.3 spec.
* This is expected to match exactly with the spec.
*/
struct NvKmsHDRStaticMetadata {
/*!
* Color primaries of the data.
* These are coded as unsigned 16-bit values in units of 0.00002,
* where 0x0000 represents zero and 0xC350 represents 1.0000.
*/
struct {
NvU16 x, y;
} displayPrimaries[3];
/*!
* White point of colorspace data.
* These are coded as unsigned 16-bit values in units of 0.00002,
* where 0x0000 represents zero and 0xC350 represents 1.0000.
*/
struct {
NvU16 x, y;
} whitePoint;
/**
* Maximum mastering display luminance.
* This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
* where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
*/
NvU16 maxDisplayMasteringLuminance;
/*!
* Minimum mastering display luminance.
* This value is coded as an unsigned 16-bit value in units of
* 0.0001 cd/m2, where 0x0001 represents 0.0001 cd/m2 and 0xFFFF
* represents 6.5535 cd/m2.
*/
NvU16 minDisplayMasteringLuminance;
/*!
* Maximum content light level.
* This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
* where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
*/
NvU16 maxCLL;
/*!
* Maximum frame-average light level.
* This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
* where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
*/
NvU16 maxFALL;
};
/*!
* A superframe is made of two or more video streams that are combined in
* a specific way. A DP serializer (an external device connected to a Tegra
* ARM SOC over DP or HDMI) can receive a video stream comprising multiple
* videos combined into a single frame and then split it into multiple
* video streams. The following structure describes the number of views
* and dimensions of each view inside a superframe.
*/
struct NvKmsSuperframeInfo {
NvU8 numViews;
struct {
/* x offset inside superframe at which this view starts */
NvU16 x;
/* y offset inside superframe at which this view starts */
NvU16 y;
/* Horizontal active width in pixels for this view */
NvU16 width;
/* Vertical active height in lines for this view */
NvU16 height;
} view[NVKMS_MAX_SUPERFRAME_VIEWS];
};
#endif /* NVKMS_API_TYPES_H */