diff options
Diffstat (limited to 'drivers/mxc/amd-gpu/common/gsl_cmdwindow.c')
| -rw-r--r-- | drivers/mxc/amd-gpu/common/gsl_cmdwindow.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/drivers/mxc/amd-gpu/common/gsl_cmdwindow.c b/drivers/mxc/amd-gpu/common/gsl_cmdwindow.c new file mode 100644 index 000000000000..4d70da5b25c8 --- /dev/null +++ b/drivers/mxc/amd-gpu/common/gsl_cmdwindow.c @@ -0,0 +1,136 @@ +/* Copyright (c) 2002,2007-2010, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + */ + +#include "gsl.h" +#include "gsl_hal.h" + +#ifdef GSL_BLD_G12 + +////////////////////////////////////////////////////////////////////////////// +// defines +////////////////////////////////////////////////////////////////////////////// +#define GSL_CMDWINDOW_TARGET_MASK 0x000000FF +#define GSL_CMDWINDOW_ADDR_MASK 0x00FFFF00 +#define GSL_CMDWINDOW_TARGET_SHIFT 0 +#define GSL_CMDWINDOW_ADDR_SHIFT 8 + + +////////////////////////////////////////////////////////////////////////////// +// functions +////////////////////////////////////////////////////////////////////////////// + +int +kgsl_cmdwindow_init(gsl_device_t *device) +{ + return (GSL_SUCCESS); +} + +//---------------------------------------------------------------------------- + +int +kgsl_cmdwindow_close(gsl_device_t *device) +{ + return (GSL_SUCCESS); +} + +#endif // GSL_BLD_G12 + +//---------------------------------------------------------------------------- + +int +kgsl_cmdwindow_write0(gsl_deviceid_t device_id, gsl_cmdwindow_t target, unsigned int addr, unsigned int data) +{ +#ifdef GSL_BLD_G12 + gsl_device_t *device; + unsigned int cmdwinaddr; + unsigned int cmdstream; + + kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_TRACE, + "--> int kgsl_cmdwindow_write( gsl_device_id_t device_id=%d, gsl_cmdwindow_t target=%d, unsigned int addr=0x%08x, unsigned int data=0x%08x)\n", device_id, target, addr, data ); + + device = &gsl_driver.device[device_id-1]; // device_id is 1 based + + if (target < GSL_CMDWINDOW_MIN || target > GSL_CMDWINDOW_MAX) + { + kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_ERROR, "ERROR: Invalid target.\n" ); + kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_cmdwindow_write. Return value %B\n", GSL_FAILURE ); + return (GSL_FAILURE); + } + + if ((!(device->flags & GSL_FLAGS_INITIALIZED) && target == GSL_CMDWINDOW_MMU) || + (!(device->flags & GSL_FLAGS_STARTED) && target != GSL_CMDWINDOW_MMU)) + { + kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_ERROR, "ERROR: Invalid device state to write to selected targer.\n" ); + kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_cmdwindow_write. Return value %B\n", GSL_FAILURE ); + return (GSL_FAILURE); + } + + // set command stream + if (target == GSL_CMDWINDOW_MMU) + { +#ifdef GSL_NO_MMU + return (GSL_SUCCESS); +#endif + cmdstream = ADDR_VGC_MMUCOMMANDSTREAM; + } + else + { + cmdstream = ADDR_VGC_COMMANDSTREAM; + } + + + // set command window address + cmdwinaddr = ((target << GSL_CMDWINDOW_TARGET_SHIFT) & GSL_CMDWINDOW_TARGET_MASK); + cmdwinaddr |= ((addr << GSL_CMDWINDOW_ADDR_SHIFT) & GSL_CMDWINDOW_ADDR_MASK); + +#ifndef GSL_NO_MMU + // set mmu pagetable + kgsl_mmu_setpagetable(device, GSL_CALLER_PROCESSID_GET()); +#endif + + // write command window address + device->ftbl.device_regwrite(device, (cmdstream)>>2, cmdwinaddr); + + // write data + device->ftbl.device_regwrite(device, (cmdstream)>>2, data); + + kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_cmdwindow_write. Return value %B\n", GSL_SUCCESS ); + + return (GSL_SUCCESS); +#else + // unreferenced formal parameter + (void) device_id; + (void) target; + (void) addr; + (void) data; + + return (GSL_FAILURE); +#endif // GSL_BLD_G12 +} + +//---------------------------------------------------------------------------- + +KGSL_API int +kgsl_cmdwindow_write(gsl_deviceid_t device_id, gsl_cmdwindow_t target, unsigned int addr, unsigned int data) +{ + int status = GSL_SUCCESS; + GSL_API_MUTEX_LOCK(); + status = kgsl_cmdwindow_write0(device_id, target, addr, data); + GSL_API_MUTEX_UNLOCK(); + return status; +} |