boinc/lib/cal.h

1088 lines
46 KiB
C

/**
* @file cal.h
* @brief CAL Interface Header
* @version 1.00.0 Beta
*/
/* ============================================================
Copyright (c) 2007 Advanced Micro Devices, Inc. All rights reserved.
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============================================================ */
#ifndef __CAL_H__
#define __CAL_H__
#ifdef __cplusplus
extern "C" {
#define CALAPI
#else
#define CALAPI extern
#endif
#ifdef _WIN32
#define CALAPIENTRY __stdcall
#else
#define CALAPIENTRY
#endif
typedef void CALvoid; /**< void type */
typedef char CALchar; /**< ASCII character */
typedef signed char CALbyte; /**< 1 byte signed integer value */
typedef unsigned char CALubyte; /**< 1 byte unsigned integer value */
typedef signed short CALshort; /**< 2 byte signed integer value */
typedef unsigned short CALushort; /**< 2 byte unsigned integer value */
typedef signed int CALint; /**< 4 byte signed integer value */
typedef unsigned int CALuint; /**< 4 byte unsigned intger value */
typedef float CALfloat; /**< 32-bit IEEE floating point value */
typedef double CALdouble; /**< 64-bit IEEE floating point value */
typedef signed long CALlong; /**< long value */
typedef unsigned long CALulong; /**< unsigned long value */
#if defined(_MSC_VER)
typedef signed __int64 CALint64; /**< 8 byte signed integer value */
typedef unsigned __int64 CALuint64; /**< 8 byte unsigned integer value */
#elif defined(__GNUC__)
typedef signed long long CALint64; /**< 8 byte signed integer value */
typedef unsigned long long CALuint64; /**< 8 byte unsigned integer value */
#else
#error "Unsupported compiler type."
#endif
/** Boolean type */
typedef enum CALbooleanEnum {
CAL_FALSE = 0, /**< Boolean false value */
CAL_TRUE = 1 /**< Boolean true value */
} CALboolean;
/** Function call result/return codes */
typedef enum CALresultEnum {
CAL_RESULT_OK = 0, /**< No error */
CAL_RESULT_ERROR = 1, /**< Operational error */
CAL_RESULT_INVALID_PARAMETER = 2, /**< Parameter passed in is invalid */
CAL_RESULT_NOT_SUPPORTED = 3, /**< Function used properly but currently not supported */
CAL_RESULT_ALREADY = 4, /**< Stateful operation requested has already been performed */
CAL_RESULT_NOT_INITIALIZED = 5, /**< CAL function was called without CAL being initialized */
CAL_RESULT_BAD_HANDLE = 6, /**< A handle parameter is invalid */
CAL_RESULT_BAD_NAME_TYPE = 7, /**< A name parameter is invalid */
CAL_RESULT_PENDING = 8, /**< An asynchronous operation is still pending */
CAL_RESULT_BUSY = 9, /**< The resource in question is still in use */
CAL_RESULT_WARNING = 10, /**< Compiler generated a warning */
} CALresult;
/** Data format representation */
typedef enum CALformatEnum {
CAL_FORMAT_UBYTE_1, /**< A 1 component 8-bit unsigned byte format */
CAL_FORMAT_UBYTE_2, /**< A 2 component 8-bit unsigned byte format */
CAL_FORMAT_UBYTE_4, /**< A 4 component 8-bit unsigned byte format */
CAL_FORMAT_USHORT_1, /**< A 1 component 16-bit unsigned short format */
CAL_FORMAT_USHORT_2, /**< A 2 component 16-bit unsigned short format */
CAL_FORMAT_USHORT_4, /**< A 4 component 16-bit unsigned short format */
CAL_FORMAT_UINT_4, /**< A 4 component 32-bit unsigned integer format */
CAL_FORMAT_BYTE_4, /**< A 4 component 8-bit byte format */
CAL_FORMAT_SHORT_1, /**< A 1 component 16-bit short format */
CAL_FORMAT_SHORT_2, /**< A 2 component 16-bit short format */
CAL_FORMAT_SHORT_4, /**< A 4 component 16-bit short format */
CAL_FORMAT_FLOAT_1, /**< A 1 component 32-bit float format */
CAL_FORMAT_FLOAT_2, /**< A 2 component 32-bit float format */
CAL_FORMAT_FLOAT_4, /**< A 4 component 32-bit float format */
CAL_FORMAT_DOUBLE_1, /**< A 1 component 64-bit float format */
CAL_FORMAT_DOUBLE_2, /**< A 2 component 64-bit float format */
CAL_FORMAT_UINT_1, /**< A 1 component 32-bit unsigned integer format */
CAL_FORMAT_UINT_2, /**< A 2 component 32-bit unsigned integer format */
CAL_FORMAT_BYTE_1, /**< A 1 component 8-bit byte format */
CAL_FORMAT_BYTE_2, /**< A 2 component 8-bit byte format */
CAL_FORMAT_INT_1, /**< A 1 component 32-bit signed integer format */
CAL_FORMAT_INT_2, /**< A 2 component 32-bit signed integer format */
CAL_FORMAT_INT_4, /**< A 4 component 32-bit signed integer format */
} CALformat;
/** Device Kernel ISA */
typedef enum CALtargetEnum {
CAL_TARGET_600, /**< R600 GPU ISA */
CAL_TARGET_610, /**< RV610 GPU ISA */
CAL_TARGET_630, /**< RV630 GPU ISA */
CAL_TARGET_670, /**< RV670 GPU ISA */
CAL_TARGET_7XX, /**< R700 class GPU ISA */
CAL_TARGET_770, /**< RV770 GPU ISA */
CAL_TARGET_710, /**< RV710 GPU ISA */
CAL_TARGET_730, /**< RV730 GPU ISA */
} CALtarget;
/** CAL object container */
typedef struct CALobjectRec* CALobject;
/** CAL image container */
typedef struct CALimageRec* CALimage;
typedef CALuint CALdevice; /**< Device handle */
typedef CALuint CALcontext; /**< context */
typedef CALuint CALresource; /**< resource handle */
typedef CALuint CALmem; /**< memory handle */
typedef CALuint CALfunc; /**< function handle */
typedef CALuint CALname; /**< name handle */
typedef CALuint CALmodule; /**< module handle */
typedef CALuint CALevent; /**< event handle */
/** CAL computational domain */
typedef struct CALdomainRec {
CALuint x; /**< x origin of domain */
CALuint y; /**< y origin of domain */
CALuint width; /**< width of domain */
CALuint height; /**< height of domain */
} CALdomain;
/** CAL device information */
typedef struct CALdeviceinfoRec {
CALtarget target; /**< Device Kernel ISA */
CALuint maxResource1DWidth; /**< Maximum resource 1D width */
CALuint maxResource2DWidth; /**< Maximum resource 2D width */
CALuint maxResource2DHeight; /**< Maximum resource 2D height */
} CALdeviceinfo;
/** CAL device attributes */
typedef struct CALdeviceattribsRec {
CALuint struct_size; /**< Client filled out size of CALdeviceattribs struct */
CALtarget target; /**< Asic identifier */
CALuint localRAM; /**< Amount of local GPU RAM in megabytes */
CALuint uncachedRemoteRAM; /**< Amount of uncached remote GPU memory in megabytes */
CALuint cachedRemoteRAM; /**< Amount of cached remote GPU memory in megabytes */
CALuint engineClock; /**< GPU device clock rate in megahertz */
CALuint memoryClock; /**< GPU memory clock rate in megahertz */
CALuint wavefrontSize; /**< Wavefront size */
CALuint numberOfSIMD; /**< Number of SIMDs */
CALboolean doublePrecision; /**< double precision supported */
CALboolean localDataShare; /**< local data share supported */
CALboolean globalDataShare; /**< global data share supported */
CALboolean globalGPR; /**< global GPR supported */
CALboolean computeShader; /**< compute shader supported */
CALboolean memExport; /**< memexport supported */
CALuint pitch_alignment; /**< Required alignment for calCreateRes allocations (in data elements) */
CALuint surface_alignment; /**< Required start address alignment for calCreateRes allocations (in bytes) */
} CALdeviceattribs;
/** CAL device status */
typedef struct CALdevicestatusRec {
CALuint struct_size; /**< Client filled out size of CALdevicestatus struct */
CALuint availLocalRAM; /**< Amount of available local GPU RAM in megabytes */
CALuint availUncachedRemoteRAM; /**< Amount of available uncached remote GPU memory in megabytes */
CALuint availCachedRemoteRAM; /**< Amount of available cached remote GPU memory in megabytes */
} CALdevicestatus;
/** CAL resource allocation flags **/
typedef enum CALresallocflagsEnum {
CAL_RESALLOC_GLOBAL_BUFFER = 1, /**< used for global import/export buffer */
CAL_RESALLOC_CACHEABLE = 2, /**< cacheable memory? */
} CALresallocflags;
/** CAL computational 3D domain */
typedef struct CALdomain3DRec {
CALuint width; /**< width of domain */
CALuint height; /**< height of domain */
CALuint depth; /**< depth of domain */
} CALdomain3D;
/** CAL computational grid */
typedef struct CALprogramGridRec {
CALfunc func; /**< CALfunc to execute */
CALdomain3D gridBlock; /**< size of a block of data */
CALdomain3D gridSize; /**< size of 'blocks' to execute. */
CALuint flags; /**< misc grid flags */
} CALprogramGrid;
/** CAL computational grid array*/
typedef struct CALprogramGridArrayRec {
CALprogramGrid* gridArray;/**< array of programGrid structures */
CALuint num; /**< number of entries in the grid array */
CALuint flags; /**< misc grid array flags */
} CALprogramGridArray;
/** CAL function information **/
typedef struct CALfuncInfoRec
{
CALuint maxScratchRegsNeeded; /**< Maximum number of scratch regs needed */
CALuint numSharedGPRUser; /**< Number of shared GPRs */
CALuint numSharedGPRTotal; /**< Number of shared GPRs including ones used by SC */
CALboolean eCsSetupMode; /**< Slow mode */
CALuint numThreadPerGroup; /**< Number of threads per group */
CALuint totalNumThreadGroup; /**< Total number of thread groups */
CALuint wavefrontPerSIMD; /**< Number of wavefronts per SIMD */ //CAL_USE_SC_PRM
CALuint numWavefrontPerSIMD; /**< Number of wavefronts per SIMD */
CALboolean isMaxNumWavePerSIMD; /**< Is this the max num active wavefronts per SIMD */
CALboolean setBufferForNumGroup; /**< Need to set up buffer for info on number of thread groups? */
} CALfuncInfo;
/*============================================================================
* CAL Runtime Interface
*============================================================================*/
/*----------------------------------------------------------------------------
* CAL Subsystem Functions
*----------------------------------------------------------------------------*/
/**
* @fn calInit(void)
*
* @brief Initialize the CAL subsystem.
*
* Initializes the CAL system for computation. The behavior of CAL methods is
* undefined if the system is not initialized.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error, and CAL_RESULT_ALREADY
* of CAL has already been initialized.
*
* @sa calShutdown
*/
CALAPI CALresult CALAPIENTRY calInit(void);
/**
* @fn calGetVersion(CALuint* major, CALuint* minor, CALuint* imp)
*
* @brief Retrieve the CAL version that is loaded
*
* CAL version is in the form of API_Major.API_Minor.Implementation where
* "API_Major" is the major version number of the CAL API. "API_Minor" is the
* minor version number of the CAL API. "Implementation" is the implementation
* instance of the supplied API version number.
*
* @return Returns CAL_RESULT_OK on success.
*
* @sa calInit calShutdown
*/
CALAPI CALresult CALAPIENTRY calGetVersion(CALuint* major, CALuint* minor, CALuint* imp);
/**
* @fn calShutdown(void)
*
* @brief Shuts down the CAL subsystem.
*
* Shuts down the CAL system. calShutdown should always be paired with
* calInit. An application may have any number of calInit - calShutdown
* pairs. Any CAL call outsied calInit - calShutdown pair will return
* CAL_RESULT_NOT_INITIALIZED.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calInit
*/
CALAPI CALresult CALAPIENTRY calShutdown(void);
/*----------------------------------------------------------------------------
* CAL Device Functions
*----------------------------------------------------------------------------*/
/**
* @fn calDeviceGetCount(CALuint* count)
*
* @brief Retrieve the number of devices available to the CAL subsystem.
*
* Returns in *count the total number of supported GPUs present in the system.
*
* @param count (out) - the number of devices available to CAL. On error, count will be zero.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calDeviceGetInfo calDeviceOpen calDeviceClose
*/
CALAPI CALresult CALAPIENTRY calDeviceGetCount(CALuint* count);
/**
* @fn calDeviceGetInfo(CALdeviceinfo* info, CALuint ordinal)
*
* @brief Retrieve information about a specific device available to the CAL subsystem.
*
* Returns the device specific information in *info. calDeviceGetInfo returns
* CAL_RESULT_ERROR if the ordinal is not less than the *count returned in
* calDeviceGetCount. The target instruction set, the maximum width of
* 1D resources, the maximum width and height of 2D resources are part
* of the CALdeviceinfo structure.
*
* @param info (out) - the device descriptor struct for the specified device.
* @param ordinal (in) - zero based index of the device to retrieve information.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calDeviceGetCount calDeviceOpen calDeviceClose
*/
CALAPI CALresult CALAPIENTRY calDeviceGetInfo(CALdeviceinfo* info, CALuint ordinal);
/**
* @fn calDeviceGetAttribs(CALdeviceattribs* attribs, CALuint ordinal)
*
* @brief Retrieve information about a specific device available to the CAL subsystem.
*
* Returns the device specific attributes in *attribs. calDeviceGetAttribs returns
* CAL_RESULT_ERROR if the ordinal is not less than the *count returned in
* calDeviceGetCount.
*
* @param attribs (out) - the device attribute struct for the specified device.
* @param ordinal (in) - zero based index of the device to retrieve information.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calDeviceGetCount calDeviceOpen calDeviceClose
*/
CALAPI CALresult CALAPIENTRY calDeviceGetAttribs(CALdeviceattribs* attribs, CALuint ordinal);
/**
* @fn calDeviceGetStatus(CALdevicestatus* status, CALdevice device)
*
* @brief Retrieve information about a specific device available to the CAL subsystem.
*
* Returns the current status of an open device in *status.
*
* @param status (out) - the status struct for the specified device.
* @param device (in) - handle of the device from which status is to be retrieved.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calDeviceGetAttribs calDeviceOpen calDeviceClose
*/
CALAPI CALresult CALAPIENTRY calDeviceGetStatus(CALdevicestatus* status, CALdevice device);
/**
* @fn calDeviceOpen(CALdevice* dev, CALuint ordinal)
*
* @brief Open the specified device.
*
* Opens a device. A device has to be closed before it can be opened again in
* the same application. This call should always be paired with calDeviceClose.
* Open the device indexed by the <i>ordinal</i> parameter, which
* is an unsigned integer in the range of zero to the number of available devices (minus one).
*
* @param dev (out) - the device handle for the specified device. On error, dev will be zero.
* @param ordinal (in) - zero based index of the device to retrieve information.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calDeviceGetCount calDeviceGetInfo calDeviceClose
*/
CALAPI CALresult CALAPIENTRY calDeviceOpen(CALdevice* dev, CALuint ordinal);
/**
* @fn calDeviceClose(CALdevice dev)
*
* @brief Close the specified device.
*
* Close the device specified by <i>dev</i> parameter. The
*
* @param dev (in) - the device handle for the device to close
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calDeviceGetCount calDeviceGetInfo calDeviceOpen
*/
CALAPI CALresult CALAPIENTRY calDeviceClose(CALdevice dev);
/*----------------------------------------------------------------------------
* CAL Resource Functions
*----------------------------------------------------------------------------*/
/**
* @fn calResAllocLocal2D(CALresource* res, CALdevice dev, CALuint width, CALuint height, CALformat format, CALuint flags)
*
* @brief Allocate a memory resource local to a device
*
* allocates memory resource local to a device <i>dev</i> and returns a
* resource handle in <i>*res</i> if successful. This memory is structured
* as a 2 dimensional region of <i>width</i> and <i>height</i> with a <i>format</i>.
* The maximum values of <i>width</i> and <i>height</i> are available through
* the calDeviceGetInfo function. The call returns CAL_RESULT_ERROR if requested
* memory was not available.
*
* Initial implementation will allow this memory to be accessible by all contexts
* created on this device only. Contexts residing on other devices cannot access
* this memory.
*
* <i>flags</i> can be zero or CAL_RESALLOC_GLOBAL_BUFFER
* - to specify that the resource will be used as a global
* buffer.
*
* There are some performance implications when <i>width</i> is not a multiple
* of 64 for R6xx GPUs.
*
* @param res (out) - returned resource handle. On error, res will be zero.
* @param dev (in) - device the resource should be local.
* @param width (in) - width of resource (in elements).
* @param height (in) - height of the resource (in elements).
* @param format (in) - format/type of each element of the resource.
* @param flags (in) - currently unused.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calResFree
*/
CALAPI CALresult CALAPIENTRY calResAllocLocal2D(CALresource* res, CALdevice dev, CALuint width, CALuint height, CALformat format, CALuint flags);
/**
* @fn calResAllocRemote2D(CALresource* res, CALdevice* dev, CALuint devCount, CALuint width, CALuint height, CALformat format, CALuint flags)
*
* @brief Allocate a memory resource remote to a set of devices
*
* allocates memory resource global to <i>devCount</i> number of devices in <i>dev</i> array
* and returns a resource handle in <i>*res</i> if successful. This memory is structured
* as a 2 dimensional region of <i>width</i> and <i>height</i> with a <i>format</i>.
* The maximum values of <i>width</i> and <i>height</i> are available through
* the calDeviceGetInfo function. The call returns CAL_RESULT_ERROR if requested
* memory was not available.
*
* Currently only a single device is functional (<i>devCount</i> must be 1).
*
* Initial implementation will allow this memory to be accessible by all contexts
* created on this device only. Contexts residing on other devices cannot access
* this memory.
*
* <i>flags</i> can be zero or CAL_RESALLOC_GLOBAL_BUFFER - to
* specify that the resource will be used as a global buffer or
* CAL_RESALLOC_CACHEABLE for GART cacheable memory.
*
* One of the benefits with devices being able to write to remote (i.e. system)
* memory is performance. For example, with large computational kernels, it is
* sometimes faster for the GPU contexts to write directly to remote
* memory than it is to do these in 2 steps of GPU context writing to local memory
* and copying data from GPU local memory to remote system memory via calMemCopy
*
* @param res (out) - returned resource handle. On error, res will be zero.
* @param dev (in) - list of devices the resource should be available to.
* @param devCount (in) - number of devices in the device list.
* @param width (in) - width of resource (in elements).
* @param height (in) - height of the resource (in elements).
* @param format (in) - format/type of each element of the resource.
* @param flags (in) - currently unused.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calResFree
*/
CALAPI CALresult CALAPIENTRY calResAllocRemote2D(CALresource* res, CALdevice *dev, CALuint deviceCount, CALuint width, CALuint height, CALformat format, CALuint flags);
/**
* @fn calResAllocLocal1D(CALresource* res, CALdevice dev, CALuint width, CALformat format, CALuint flags)
*
* @brief Allocate a 1D memory resource local to a device
*
* allocates memory resource local to a device <i>device</i> and returns
* a resource handle in <i>*res</i> if successful. This memory is
* structured as a 1 dimensional array of <i>width</i> elements with a <i>format</i>}.
* The maximum values of <i>width</i> is available from the calDeviceGetInfo function.
* The call returns CAL_RESULT_ERROR if requested memory was not available.
*
* @param res (out) - returned resource handle. On error, res will be zero.
* @param dev (in) - device the resource should be local.
* @param width (in) - width of resource (in elements).
* @param format (in) - format/type of each element of the resource.
* @param flags (in) - currently unused.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calResFree
*/
CALAPI CALresult CALAPIENTRY calResAllocLocal1D(CALresource* res, CALdevice dev, CALuint width, CALformat format, CALuint flags);
/**
* @fn calResAllocRemote1D(CALresource* res, CALdevice* dev, CALuint deviceCount, CALuint width, CALformat format, CALuint flags)
*
* @brief Allocate a 1D memory resource remote to a device
*
* allocates memory resource global to <i>devCount</i> number of devices
* in <i>dev</i> array and returns a resource memory handle in <i>*res</i> if
* successful. This memory resource is structured as a 1 dimensional
* region of <i>width</i> elements with a <i>format</i>. The maximum values of
* <i>width</i> is available from the calDeviceGetInfo function. The call returns
* CAL_RESULT_ERROR if requested memory was not available.
*
* Currently only a single device is functional (<i>devCount</i> must be 1).
*
* @param res (out) - returned resource handle. On error, res will be zero.
* @param dev (in) - device the resource should be local.
* @param deviceCount (in) - number of devices in the device list.
* @param width (in) - width of resource (in elements).
* @param format (in) - format/type of each element of the resource.
* @param flags (in) - currently unused.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calResFree
*/
CALAPI CALresult CALAPIENTRY calResAllocRemote1D(CALresource* res, CALdevice* dev, CALuint deviceCount, CALuint width, CALformat format, CALuint flags);
/**
* @fn calResFree(CALresource res)
*
* @brief Free a resource
*
* releases allocated memory resource. calResFree returns CAL_RESULT_BUSY if
* the resources is in use by any context.
*
* @param res (in) - resource handle to free.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calResAllocLocal2D calResAllocRemote2D calResAllocLocal1D calResAllocRemote1D
*/
CALAPI CALresult CALAPIENTRY calResFree(CALresource res);
/**
* @fn calResMap(CALvoid** pPtr, CALuint* pitch, CALresource res, CALuint flags)
*
* @brief Map memory to the CPU
*
*
* returns a CPU accessible pointer to the memory surface in <i>**pPtr</i>
* and the pitch in <i>*pitch</i>. All memory resources are CPU accessible. It is an
* error to call <i>calResMap</i> within a <i>calResMap</i> - <i>calResUnmap</i> pair
* for the same <i>CALresource</i> memory resource handle.
*
* A mapped surface cannot be used as input or output of a calCtxRunProgram or calMemCopy.
*
* @param pPtr (out) - CPU pointer to the mapped resource. On error, pPtr will be zero.
* @param pitch (out) - Pitch in elements of the resource. On error, pitch will be zero.
* @param res (in) - resource handle to map
* @param flags (in) - not used
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calResUnmap
*/
CALAPI CALresult CALAPIENTRY calResMap(CALvoid** pPtr, CALuint* pitch, CALresource res, CALuint flags);
/**
* @fn calResUnmap(CALresource res)
*
* @brief Unmap a CPU mapped resource.
*
* releases the address returned in <i>calResMap</i>. This should always be
* paired with <i>calResMap</i>
*
* @param res (in) - resource handle to unmap
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calResMap
*/
CALAPI CALresult CALAPIENTRY calResUnmap(CALresource res);
/*----------------------------------------------------------------------------
* CAL Context Functions
*----------------------------------------------------------------------------*/
/**
* @fn calCtxCreate(CALcontext* ctx, CALdevice dev)
*
* @brief Create a CAL context on the specified device
*
* creates a context on a device. Multiple contexts can be created on
* a single device.
*
* @param ctx (out) - handle of the newly created context. On error, ctx will be zero.
* @param dev (in) - device handle to create the context on
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxDestroy
*/
CALAPI CALresult CALAPIENTRY calCtxCreate(CALcontext* ctx, CALdevice dev);
/**
* @fn calCtxDestroy(CALcontext ctx)
*
* @brief Destroy a CAL context
*
* destroys a context. All current modules are unloaded and all CALmem objects
* mapped to the context are released. This call should be paired with
* <i>calCtxCreate</i>
*
* @param ctx (in) - context to destroy
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxCreate
*/
CALAPI CALresult CALAPIENTRY calCtxDestroy(CALcontext ctx);
/**
* @fn calCtxGetMem(CALmem* mem, CALcontext ctx, CALresource res)
*
* @brief Map a resource to a context
*
* returns a memory handle in <i>*mem</i> for the resource surface <i>res</i>
* for use by the context <i>ctx</i>.
*
* @param mem (out) - created memory handle. On error, mem will be zero.
* @param ctx (in) - context in which resouce is mapped
* @param res (in) - resource to map to context
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxReleaseMem calCtxSetMem
*/
CALAPI CALresult CALAPIENTRY calCtxGetMem(CALmem* mem, CALcontext ctx, CALresource res);
/**
* @fn calCtxReleaseMem(CALcontext ctx, CALmem mem)
*
* @brief Release a resource to context mapping
*
* releases memory handle <i>mem</i> that is obtained by <i>calCtxGetMem</i>.
*
* @param ctx (in) - context in which resouce is mapped
* @param mem (in) - memory handle to release
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxGetMem calCtxSetMem
*/
CALAPI CALresult CALAPIENTRY calCtxReleaseMem(CALcontext ctx, CALmem mem);
/**
* @fn calCtxSetMem(CALcontext ctx, CALname name, CALmem mem)
*
* @brief Set memory used for kernel input or output
*
* sets a memory handle <i>mem</i> with the associated <i>name</i> in
* the module to the context <i>ctx</i>. This can be input or output.
*
* @param ctx (in) - context to apply attachment.
* @param name (in) - name to bind memory.
* @param mem (in) - memory handle to apply.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxGetMem calCtxReleaseMem
*/
CALAPI CALresult CALAPIENTRY calCtxSetMem(CALcontext ctx, CALname name, CALmem mem);
/**
* @fn calCtxRunProgram(CALevent* event, CALcontext ctx, CALfunc func, const CALdomain* domain)
*
* @brief Invoke the kernel over the specified domain.
*
*
* issues a task to invoke the computation of the kernel identified by
* <i>func</i> within a region <i>domain</i> on the context <i>ctx</i> and
* returns an associated event token in <i>*event</i> with this task. This
* method returns CAL_RESULT_ERROR if <i>func</i> is not found in the currently
* loaded module. This method returns CAL_RESULT_ERROR, if any of the inputs,
* input references, outputs and constant buffers associated with the kernel
* are not setup. Completion of this event can be queried by the master process
* using <i>calIsEventDone</i>
*
* Extended contextual information regarding a calCtxRunProgram failure
* can be obtained with the calGetErrorString function.
*
* @param event (out) - event associated with RunProgram instance. On error, event will be zero.
* @param ctx (in) - context.
* @param func (in) - function to use as kernel.
* @param domain (in) - domain over which kernel is applied.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxIsEventDone
*/
CALAPI CALresult CALAPIENTRY calCtxRunProgram(CALevent* event, CALcontext ctx, CALfunc func, const CALdomain* domain);
/**
* @fn calCtxIsEventDone(CALcontext ctx, CALevent event)
*
* @brief Query to see if event has completed
*
*
* is a mechanism for the master process to query if an event <i>event</i> on
* context <i>ctx</i> from <i>calCtxRunProgram</i> or <i>calMemCopy</i> is
* completed. This call also ensures that the commands associated with
* the context are flushed.
*
* @param ctx (in) - context to query.
* @param event (in) - event to query.
*
* @return Returns CAL_RESULT_OK if the event is complete, CAL_RESULT_PENDING if the event is
* still being processed and CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxRunProgram
*/
CALAPI CALresult CALAPIENTRY calCtxIsEventDone(CALcontext ctx, CALevent event);
/**
* @fn calCtxFlush(CALcontext ctx)
*
* @brief Flush any commands associated with the supplied context
*
* This call ensures that the commands associated with the
* context are flushed.
*
* @param ctx (in) - context to flush.
*
* @return Returns CAL_RESULT_OK if the event is complete, CAL_RESULT_ERROR if
* there was an error.
*
* @sa calCtxRunProgram calCtxIsEventDone
*/
CALAPI CALresult CALAPIENTRY calCtxFlush(CALcontext ctx);
/**
* @fn calMemCopy(CALevent* event, CALcontext ctx, CALmem srcMem, CALmem dstMem, CALuint flags)
*
* @brief Copy srcMem to dstMem
*
* issues a task to copy data from a source memory handle to a
* destination memory handle. This method returns CAL_RESULT_ERROR if the source
* and destination memory have different memory formats or if the destination
* memory handle is not as big in 2 dimensions as the source memory or
* if the source and destination memory handles do not belong to the
* context <i>ctx</i>. An event is associated with this task and is returned in
* <i>*event</i> and completion of this event can be queried by the master
* process using <i>calIsEventDone</i>. Data can be copied between memory
* handles from remote system memory to device local memory, remote system
* memory to remote system memory, device local memory to remote
* system memory, device local memory to same device local memory, device
* local memory to a different device local memory. The memory is copied by
* the context <i>ctx</i>
*
* @param event (out) - event associated with Memcopy instance. On error, event will be zero.
* @param ctx (in) - context to query.
* @param srcMem (in) - source of the copy.
* @param dstMem (in) - destination of the copy.
* @param flags (in) - currently not used.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxRunProgram
*/
CALAPI CALresult CALAPIENTRY calMemCopy(CALevent* event, CALcontext ctx, CALmem srcMem, CALmem dstMem, CALuint flags);
/*----------------------------------------------------------------------------
* CAL Image Functions
*----------------------------------------------------------------------------*/
/**
* @fn calImageRead(CALimage* image, const CALvoid* buffer, CALuint size)
*
* @brief Create a CALimage and serialize into it from the supplied buffer.
*
* Create a CALimage and populate it with information from the supplied buffer.
*
* @param image (out) - image created from serialization
* @param buffer (in) - buffer to serialize from
* @param size (in) - size of buffer
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
* @sa calImageFree
*/
CALAPI CALresult CALAPIENTRY calImageRead(CALimage *image, const CALvoid* buffer, CALuint size);
/**
* @fn calImageFree(CALimage image)
*
* @brief Free the supplied CALimage.
*
* Free a calImage that was created with calImageRead.
*
* @param image (in) - image to free
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calImageRead
*/
CALAPI CALresult CALAPIENTRY calImageFree(CALimage image);
/*----------------------------------------------------------------------------
* CAL Module Functions
*----------------------------------------------------------------------------*/
/**
* @fn calModuleLoad(CALmodule* module, CALcontext ctx, CALimage image)
*
* @brief Load a kernel image to a context
*
* creates a module from precompiled image <i>image</i>, loads the module
* on the context and returns the loaded module in <i>*module</i>. This
* method returns CAL_RESULT_ERROR if the module cannot be loaded onto the
* processor. One of the reasons why a module cannot be loaded is if the
* module does not have generated ISA for the hardware that it is loaded
* onto. Multiple images can be loaded onto a single context at any single time.
*
* @param module (out) - handle to the loaded image. On error, module will be zero.
* @param ctx (in) - context to load an image.
* @param image (in) - raw image to load.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calModuleUnload calModuleGetEntry calModuleGetName
*/
CALAPI CALresult CALAPIENTRY calModuleLoad(CALmodule* module, CALcontext ctx, CALimage image);
/**
* @fn calModuleUnload(CALcontext ctx, CALmodule module)
*
* @brief Unload a kernel image
*
* unloads the module from the context.
*
* @param ctx (in) - context.
* @param module (in) - handle to the loaded image.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calModuleLoad calModuleGetEntry calModuleGetName
*/
CALAPI CALresult CALAPIENTRY calModuleUnload(CALcontext ctx, CALmodule module);
/**
* @fn calModuleGetEntry(CALfunc* func, CALcontext ctx, CALmodule module, const CALchar* procName)
*
* @brief Retrieve a kernel function
*
* returns in <i>*func</i> the entry point to the kernel function named
* <i>procName</i> from the module <i>module</i>. This method returns
* CAL_RESULT_ERROR if the entry point <i>procName</i> is not found in the module.
*
* @param func (out) - handle to kernel function. On error, func will be zero.
* @param ctx (in) - context.
* @param module (in) - handle to the loaded image.
* @param procName (in) - name of the function.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calModuleLoad calModuleUnload calModuleGetEntry
*/
CALAPI CALresult CALAPIENTRY calModuleGetEntry(CALfunc* func, CALcontext ctx, CALmodule module, const CALchar* procName);
/**
* @fn calModuleGetName(CALname* name, CALcontext ctx, CALmodule module, const CALchar* varName)
*
* @brief Retrieve a kernel parameter by name
*
* returns in <i>*name</i> the handle to the module global variable named
* <i>varName</i> that can be used to setup inputs and constant buffers to
* the kernel computation. This method returns CAL_RESULT_ERROR if the variable
* <i>varName</i> is not found in the module.
*
* @param name (out) - handle to name symbol. On error, name will be zero.
* @param ctx (in) - context.
* @param module (in) - handle to the loaded image.
* @param varName (in) - name of the input or output.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calModuleLoad calModuleUnload calModuleGetEntry
*/
CALAPI CALresult CALAPIENTRY calModuleGetName(CALname* name, CALcontext ctx, CALmodule module, const CALchar* varName);
/*----------------------------------------------------------------------------
* CAL Error/Debug Helper Functions
*----------------------------------------------------------------------------*/
/**
* @fn calGetErrorString(void)
*
* @brief Return details about current error state
*
* calGetErrorString returns a text string containing details about the last
* returned error condition. Calling calGetErrorString does not effect the
* error state.
*
* @return Returns a null terminated string detailing the error condition
*
* @sa calInit calShutdown
*/
CALAPI const CALchar* CALAPIENTRY calGetErrorString(void);
/**
* @fn calCtxRunProgramGrid(CALevent* event, CALcontext ctx, CALprogramGrid* pProgramGrid)
*
* @brief Invoke the kernel over the specified domain.
*
*
* issues a task to invoke the computation of the kernel identified by
* <i>func</i> within a region <i>domain</i> on the context <i>ctx</i> and
* returns an associated event token in <i>*event</i> with this task. This
* method returns CAL_RESULT_ERROR if <i>func</i> is not found in the currently
* loaded module. This method returns CAL_RESULT_ERROR, if any of the inputs,
* input references, outputs and constant buffers associated with the kernel
* are not setup. Completion of this event can be queried by the master process
* using <i>calIsEventDone</i>
*
* Extended contextual information regarding a calCtxRunProgram failure
* can be obtained with the calGetErrorString function.
*
* @param event (out) - event associated with RunProgram instance. On error, event will be zero.
* @param ctx (in) - context.
* @param pProgramGrid (in) - description of program information to get kernel and thread counts.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxIsEventDone
*/
CALAPI CALresult CALAPIENTRY calCtxRunProgramGrid(CALevent* event,
CALcontext ctx,
CALprogramGrid* pProgramGrid);
/**
* @fn calModuleGetFuncInfo(CALfuncInfo* pInfo, CALcontext ctx, CALmodule module, CALfunc func)
*
* @brief Retrieve information regarding the named func in the
* named module.
*
* returns in <i>*info</i> the information regarding the func.
* This method returns CAL_RESULT_NOT_INITIALIZED if CAL is not
* initialied.
* This method returns CAL_RESULT_INVALID_PARAMETER if info is
* NULL.
* This method returns CAL_RESULT_BAD_HANDLE if ctx is invalid
* or module is not loaded or func is not found.
* This method returns CAL_RESULT_ERROR if there was an error
*
* @param pInfo (out) - pointer to CALmoduleInfo output
* structure.
* @param ctx (in) - context.
* @param module (in) - handle to the loaded image.
* @param func (in) - name of the function.
*
* @return Returns CAL_RESULT_OK on success,
* CAL_RESULT_NOT_INITIALIZED,
* CAL_RESULT_INVALID_PARAMETER, CAL_RESULT_BAD_HANDLE,
* or CAL_RESULT_ERROR if there was an error.
*
*/
CALAPI CALresult CALAPIENTRY calModuleGetFuncInfo(CALfuncInfo* pInfo,
CALcontext ctx,
CALmodule module,
CALfunc func);
/**
* @fn calCtxRunProgramGridArray(CALevent* event, CALcontext ctx, CALprogramGridArray* pGridArray)
*
* @brief Invoke the kernel array over the specified domain(s).
*
*
* issues a task to invoke the computation of the kernel arrays identified by
* <i>func</i> within a region <i>domain</i> on the context <i>ctx</i> and
* returns an associated event token in <i>*event</i> with this task. This
* method returns CAL_RESULT_ERROR if <i>func</i> is not found in the currently
* loaded module. This method returns CAL_RESULT_ERROR, if any of the inputs,
* input references, outputs and constant buffers associated with the kernel
* are not setup. Completion of this event can be queried by the master process
* using <i>calIsEventDone</i>
*
* Extended contextual information regarding a calCtxRunProgram failure
* can be obtained with the calGetErrorString function.
*
* @param event (out) - event associated with RunProgram instance. On error, event will be zero.
* @param ctx (in) - context.
* @param pGridArray (in) - array containing kernel programs and grid information.
*
* @return Returns CAL_RESULT_OK on success, CAL_RESULT_ERROR if there was an error.
*
* @sa calCtxIsEventDone
*/
CALAPI CALresult CALAPIENTRY calCtxRunProgramGridArray(CALevent* event,
CALcontext ctx,
CALprogramGridArray* pGridArray);
#ifdef __cplusplus
} /* extern "C" { */
#endif
#endif /* __CAL_H__ */