diff options
Diffstat (limited to 'drivers/mxc/amd-gpu/include/gsl_sharedmem.h')
| -rw-r--r-- | drivers/mxc/amd-gpu/include/gsl_sharedmem.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/mxc/amd-gpu/include/gsl_sharedmem.h b/drivers/mxc/amd-gpu/include/gsl_sharedmem.h new file mode 100644 index 000000000000..bb9692cc1e44 --- /dev/null +++ b/drivers/mxc/amd-gpu/include/gsl_sharedmem.h @@ -0,0 +1,110 @@ +/* Copyright (c) 2002,2007-2010, Code Aurora Forum. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Code Aurora nor + * the names of its contributors may be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef __GSL_SHAREDMEM_H +#define __GSL_SHAREDMEM_H + + +////////////////////////////////////////////////////////////////////////////// +// defines +////////////////////////////////////////////////////////////////////////////// + +#define GSL_APERTURE_MASK 0x000000FF +#define GSL_DEVICEID_MASK 0x0000FF00 +#define GSL_EXTALLOC_MASK 0x000F0000 + +#define GSL_APERTURE_SHIFT 0 +#define GSL_DEVICEID_SHIFT 8 +#define GSL_EXTALLOC_SHIFT 16 + +#define GSL_APERTURE_GETGPUADDR(shmem, aperture_index) \ + shmem.apertures[aperture_index].memarena->gpubaseaddr; + +#define GSL_APERTURE_GETHOSTADDR(shmem, aperture_index) \ + shmem.apertures[aperture_index].memarena->hostbaseaddr; + +////////////////////////////////////////////////////////////////////////////// +// types +////////////////////////////////////////////////////////////////////////////// + +// --------------------- +// memory aperture stats +// --------------------- +typedef struct _gsl_aperture_stats_t +{ + gsl_apertureid_t id; + gsl_channelid_t channel; + gsl_memarena_stats_t memarena; +} gsl_aperture_stats_t; + +// ------------------- +// shared memory stats +// ------------------- +typedef struct _gsl_sharedmem_stats_t +{ + gsl_aperture_stats_t apertures[GSL_SHMEM_MAX_APERTURES]; +} gsl_sharedmem_stats_t; + +// --------------- +// memory aperture +// --------------- +typedef struct _gsl_aperture_t +{ + gsl_apertureid_t id; + gsl_channelid_t channel; + int numbanks; + gsl_memarena_t *memarena; +} gsl_aperture_t; + +// -------------------- +// shared memory object +// -------------------- +typedef struct _gsl_sharedmem_t +{ + gsl_flags_t flags; + unsigned int priv; + int numapertures; + gsl_aperture_t apertures[GSL_SHMEM_MAX_APERTURES]; + int aperturelookup[GSL_APERTURE_MAX][GSL_CHANNEL_MAX]; +} gsl_sharedmem_t; + + +////////////////////////////////////////////////////////////////////////////// +// prototypes +////////////////////////////////////////////////////////////////////////////// +int kgsl_sharedmem_init(gsl_sharedmem_t *shmem); +int kgsl_sharedmem_close(gsl_sharedmem_t *shmem); +int kgsl_sharedmem_alloc0(gsl_deviceid_t device_id, gsl_flags_t flags, int sizebytes, gsl_memdesc_t *memdesc); +int kgsl_sharedmem_free0(gsl_memdesc_t *memdesc, unsigned int pid); +int kgsl_sharedmem_read0(const gsl_memdesc_t *memdesc, void *dst, unsigned int offsetbytes, unsigned int sizebytes, unsigned int touserspace); +int kgsl_sharedmem_write0(const gsl_memdesc_t *memdesc, unsigned int offsetbytes, void *src, unsigned int sizebytes, unsigned int fromuserspace); +int kgsl_sharedmem_set0(const gsl_memdesc_t *memdesc, unsigned int offsetbytes, unsigned int value, unsigned int sizebytes); +int kgsl_sharedmem_querystats(gsl_sharedmem_t *shmem, gsl_sharedmem_stats_t *stats); +unsigned int kgsl_sharedmem_convertaddr(unsigned int addr, int type); + +#endif // __GSL_SHAREDMEM_H |