diff options
Diffstat (limited to 'drivers/mxc/amd-gpu/include/gsl_mmu.h')
| -rw-r--r-- | drivers/mxc/amd-gpu/include/gsl_mmu.h | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/drivers/mxc/amd-gpu/include/gsl_mmu.h b/drivers/mxc/amd-gpu/include/gsl_mmu.h new file mode 100644 index 000000000000..868c5156f290 --- /dev/null +++ b/drivers/mxc/amd-gpu/include/gsl_mmu.h @@ -0,0 +1,183 @@ +/* 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_MMU_H +#define __GSL_MMU_H + + +////////////////////////////////////////////////////////////////////////////// +// defines +////////////////////////////////////////////////////////////////////////////// +#ifdef GSL_STATS_MMU +#define GSL_MMU_STATS(x) x +#else +#define GSL_MMU_STATS(x) +#endif // GSL_STATS_MMU + +#ifdef GSL_MMU_PAGETABLE_PERPROCESS +#define GSL_MMU_PAGETABLE_MAX GSL_CALLER_PROCESS_MAX // all device mmu's share a single page table per process +#else +#define GSL_MMU_PAGETABLE_MAX 1 // all device mmu's share a single global page table +#endif // GSL_MMU_PAGETABLE_PERPROCESS + +#define GSL_PT_SUPER_PTE 8 + + +////////////////////////////////////////////////////////////////////////////// +// types +////////////////////////////////////////////////////////////////////////////// + +#ifdef _DEBUG +// --------- +// mmu debug +// --------- +typedef struct _gsl_mmu_debug_t { + unsigned int config; + unsigned int mpu_base; + unsigned int mpu_end; + unsigned int va_range; + unsigned int pt_base; + unsigned int page_fault; + unsigned int trans_error; + unsigned int invalidate; +} gsl_mmu_debug_t; +#endif // _DEBUG + +// ------------ +// mmu register +// ------------ +typedef struct _gsl_mmu_reg_t +{ + unsigned int CONFIG; + unsigned int MPU_BASE; + unsigned int MPU_END; + unsigned int VA_RANGE; + unsigned int PT_BASE; + unsigned int PAGE_FAULT; + unsigned int TRAN_ERROR; + unsigned int INVALIDATE; +} gsl_mmu_reg_t; + +// ------------ +// mh interrupt +// ------------ +typedef struct _gsl_mh_intr_t +{ + gsl_intrid_t AXI_READ_ERROR; + gsl_intrid_t AXI_WRITE_ERROR; + gsl_intrid_t MMU_PAGE_FAULT; +} gsl_mh_intr_t; + +// ---------------- +// page table stats +// ---------------- +typedef struct _gsl_ptstats_t { + __int64 maps; + __int64 unmaps; + __int64 switches; +} gsl_ptstats_t; + +// --------- +// mmu stats +// --------- +typedef struct _gsl_mmustats_t { + gsl_ptstats_t pt; + __int64 tlbflushes; +} gsl_mmustats_t; + +// ----------------- +// page table object +// ----------------- +typedef struct _gsl_pagetable_t { + unsigned int pid; + unsigned int refcnt; + gsl_memdesc_t base; + gpuaddr_t va_base; + unsigned int va_range; + unsigned int last_superpte; + unsigned int max_entries; +} gsl_pagetable_t; + +// ------------------------- +// tlb flush filter object +// ------------------------- +typedef struct _gsl_tlbflushfilter_t { + unsigned int *base; + unsigned int size; +} gsl_tlbflushfilter_t; + +// ---------- +// mmu object +// ---------- +typedef struct _gsl_mmu_t { + unsigned int refcnt; + gsl_flags_t flags; + gsl_device_t *device; + unsigned int config; + gpuaddr_t mpu_base; + int mpu_range; + gpuaddr_t va_base; + unsigned int va_range; + gsl_memdesc_t dummyspace; + gsl_tlbflushfilter_t tlbflushfilter; + gsl_pagetable_t *hwpagetable; // current page table object being used by device mmu + gsl_pagetable_t *pagetable[GSL_MMU_PAGETABLE_MAX]; // page table object table +#ifdef GSL_STATS_MMU + gsl_mmustats_t stats; +#endif // GSL_STATS_MMU +} gsl_mmu_t; + + +////////////////////////////////////////////////////////////////////////////// +// inline functions +////////////////////////////////////////////////////////////////////////////// +OSINLINE int +kgsl_mmu_isenabled(gsl_mmu_t *mmu) +{ + // address translation enabled + int enabled = ((mmu)->flags & GSL_FLAGS_STARTED) ? 1 : 0; + + return (enabled); +} + + +////////////////////////////////////////////////////////////////////////////// +// prototypes +////////////////////////////////////////////////////////////////////////////// +int kgsl_mmu_init(gsl_device_t *device); +int kgsl_mmu_close(gsl_device_t *device); +int kgsl_mmu_attachcallback(gsl_mmu_t *mmu, unsigned int pid); +int kgsl_mmu_detachcallback(gsl_mmu_t *mmu, unsigned int pid); +int kgsl_mmu_setpagetable(gsl_device_t *device, unsigned int pid); +int kgsl_mmu_map(gsl_mmu_t *mmu, gpuaddr_t gpubaseaddr, const gsl_scatterlist_t *scatterlist, gsl_flags_t flags, unsigned int pid); +int kgsl_mmu_unmap(gsl_mmu_t *mmu, gpuaddr_t gpubaseaddr, int range, unsigned int pid); +int kgsl_mmu_getmap(gsl_mmu_t *mmu, gpuaddr_t gpubaseaddr, int range, gsl_scatterlist_t *scatterlist, unsigned int pid); +int kgsl_mmu_querystats(gsl_mmu_t *mmu, gsl_mmustats_t *stats); +int kgsl_mmu_bist(gsl_mmu_t *mmu); + +#endif // __GSL_MMU_H |