diff options
Diffstat (limited to 'drivers/gpu/pvr/sgx/sgxpower.c')
| -rw-r--r-- | drivers/gpu/pvr/sgx/sgxpower.c | 483 |
1 files changed, 483 insertions, 0 deletions
diff --git a/drivers/gpu/pvr/sgx/sgxpower.c b/drivers/gpu/pvr/sgx/sgxpower.c new file mode 100644 index 0000000..b647b68 --- /dev/null +++ b/drivers/gpu/pvr/sgx/sgxpower.c @@ -0,0 +1,483 @@ +/********************************************************************** + * + * Copyright (C) Imagination Technologies Ltd. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful but, except + * as otherwise stated in writing, 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 St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Contact Information: + * Imagination Technologies Ltd. <gpl-support@imgtec.com> + * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK + * + ******************************************************************************/ + +#include <stddef.h> + +#include "sgxdefs.h" +#include "services_headers.h" +#include "sgxapi_km.h" +#include "sgx_mkif_km.h" +#include "sgxutils.h" +#include "pdump_km.h" + + +#if defined(SUPPORT_HW_RECOVERY) +static PVRSRV_ERROR SGXAddTimer(PVRSRV_DEVICE_NODE *psDeviceNode, + SGX_TIMING_INFORMATION *psSGXTimingInfo, + IMG_HANDLE *phTimer) +{ + + + + *phTimer = OSAddTimer(SGXOSTimer, psDeviceNode, + 1000 * 50 / psSGXTimingInfo->ui32uKernelFreq); + if(*phTimer == IMG_NULL) + { + PVR_DPF((PVR_DBG_ERROR,"SGXAddTimer : Failed to register timer callback function")); + return PVRSRV_ERROR_OUT_OF_MEMORY; + } + + return PVRSRV_OK; +} +#endif + + +static PVRSRV_ERROR SGXUpdateTimingInfo(PVRSRV_DEVICE_NODE *psDeviceNode) +{ + PVRSRV_SGXDEV_INFO *psDevInfo = psDeviceNode->pvDevice; +#if defined(SGX_DYNAMIC_TIMING_INFO) + SGX_TIMING_INFORMATION sSGXTimingInfo = {0}; +#else + SGX_DEVICE_MAP *psSGXDeviceMap; +#endif + IMG_UINT32 ui32ActivePowManSampleRate; + SGX_TIMING_INFORMATION *psSGXTimingInfo; + + +#if defined(SGX_DYNAMIC_TIMING_INFO) + psSGXTimingInfo = &sSGXTimingInfo; + SysGetSGXTimingInformation(psSGXTimingInfo); +#else + SysGetDeviceMemoryMap(PVRSRV_DEVICE_TYPE_SGX, + (IMG_VOID**)&psSGXDeviceMap); + psSGXTimingInfo = &psSGXDeviceMap->sTimingInfo; +#endif + +#if defined(SUPPORT_HW_RECOVERY) + { + PVRSRV_ERROR eError; + IMG_UINT32 ui32OlduKernelFreq; + + if (psDevInfo->hTimer != IMG_NULL) + { + ui32OlduKernelFreq = psDevInfo->ui32CoreClockSpeed / psDevInfo->ui32uKernelTimerClock; + if (ui32OlduKernelFreq != psSGXTimingInfo->ui32uKernelFreq) + { + + + IMG_HANDLE hNewTimer; + + eError = SGXAddTimer(psDeviceNode, psSGXTimingInfo, &hNewTimer); + if (eError == PVRSRV_OK) + { + eError = OSRemoveTimer(psDevInfo->hTimer); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXUpdateTimingInfo: Failed to remove timer")); + } + psDevInfo->hTimer = hNewTimer; + } + else + { + + } + } + } + else + { + eError = SGXAddTimer(psDeviceNode, psSGXTimingInfo, &psDevInfo->hTimer); + if (eError != PVRSRV_OK) + { + return eError; + } + } + + psDevInfo->psSGXHostCtl->ui32HWRecoverySampleRate = + psSGXTimingInfo->ui32uKernelFreq / psSGXTimingInfo->ui32HWRecoveryFreq; + } +#endif + + + psDevInfo->ui32CoreClockSpeed = psSGXTimingInfo->ui32CoreClockSpeed; + psDevInfo->ui32uKernelTimerClock = psSGXTimingInfo->ui32CoreClockSpeed / psSGXTimingInfo->ui32uKernelFreq; + + + psDevInfo->psSGXHostCtl->ui32uKernelTimerClock = psDevInfo->ui32uKernelTimerClock; +#if defined(PDUMP) + PDUMPCOMMENT("Host Control - Microkernel clock"); + PDUMPMEM(IMG_NULL, psDevInfo->psKernelSGXHostCtlMemInfo, + offsetof(SGXMKIF_HOST_CTL, ui32uKernelTimerClock), + sizeof(IMG_UINT32), PDUMP_FLAGS_CONTINUOUS, + MAKEUNIQUETAG(psDevInfo->psKernelSGXHostCtlMemInfo)); +#endif + + if (psSGXTimingInfo->bEnableActivePM) + { + ui32ActivePowManSampleRate = + psSGXTimingInfo->ui32uKernelFreq * psSGXTimingInfo->ui32ActivePowManLatencyms / 1000; + + + + + + + + ui32ActivePowManSampleRate += 1; + } + else + { + ui32ActivePowManSampleRate = 0; + } + + psDevInfo->psSGXHostCtl->ui32ActivePowManSampleRate = ui32ActivePowManSampleRate; +#if defined(PDUMP) + PDUMPMEM(IMG_NULL, psDevInfo->psKernelSGXHostCtlMemInfo, + offsetof(SGXMKIF_HOST_CTL, ui32ActivePowManSampleRate), + sizeof(IMG_UINT32), PDUMP_FLAGS_CONTINUOUS, + MAKEUNIQUETAG(psDevInfo->psKernelSGXHostCtlMemInfo)); +#endif + + return PVRSRV_OK; +} + + +static IMG_VOID SGXStartTimer(PVRSRV_SGXDEV_INFO *psDevInfo) +{ + #if defined(SUPPORT_HW_RECOVERY) + PVRSRV_ERROR eError; + + eError = OSEnableTimer(psDevInfo->hTimer); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXStartTimer : Failed to enable host timer")); + } + #else + PVR_UNREFERENCED_PARAMETER(psDevInfo); + #endif +} + + +static IMG_VOID SGXPollForClockGating (PVRSRV_SGXDEV_INFO *psDevInfo, + IMG_UINT32 ui32Register, + IMG_UINT32 ui32RegisterValue, + IMG_CHAR *pszComment) +{ + PVR_UNREFERENCED_PARAMETER(psDevInfo); + PVR_UNREFERENCED_PARAMETER(ui32Register); + PVR_UNREFERENCED_PARAMETER(ui32RegisterValue); + PVR_UNREFERENCED_PARAMETER(pszComment); + + #if !defined(NO_HARDWARE) + PVR_ASSERT(psDevInfo != IMG_NULL); + + + if (PollForValueKM((IMG_UINT32 *)psDevInfo->pvRegsBaseKM + (ui32Register >> 2), + 0, + ui32RegisterValue, + MAX_HW_TIME_US, + MAX_HW_TIME_US/WAIT_TRY_COUNT, + IMG_FALSE) != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPollForClockGating: %s failed.", pszComment)); + SGXDumpDebugInfo(psDevInfo, IMG_FALSE); + PVR_DBG_BREAK; + } + #endif + + PDUMPCOMMENT("%s", pszComment); + PDUMPREGPOL(SGX_PDUMPREG_NAME, ui32Register, 0, ui32RegisterValue, PDUMP_POLL_OPERATOR_EQUAL); +} + + +PVRSRV_ERROR SGXPrePowerState (IMG_HANDLE hDevHandle, + PVRSRV_DEV_POWER_STATE eNewPowerState, + PVRSRV_DEV_POWER_STATE eCurrentPowerState) +{ + if ((eNewPowerState != eCurrentPowerState) && + (eNewPowerState != PVRSRV_DEV_POWER_STATE_ON)) + { + PVRSRV_ERROR eError; + PVRSRV_DEVICE_NODE *psDeviceNode = hDevHandle; + PVRSRV_SGXDEV_INFO *psDevInfo = psDeviceNode->pvDevice; + IMG_UINT32 ui32PowerCmd, ui32CompleteStatus; + SGXMKIF_COMMAND sCommand = {0}; + IMG_UINT32 ui32Core; + IMG_UINT32 ui32CoresEnabled; + + #if defined(SUPPORT_HW_RECOVERY) + + eError = OSDisableTimer(psDevInfo->hTimer); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPrePowerState: Failed to disable timer")); + return eError; + } + #endif + + if (eNewPowerState == PVRSRV_DEV_POWER_STATE_OFF) + { + + ui32PowerCmd = PVRSRV_POWERCMD_POWEROFF; + ui32CompleteStatus = PVRSRV_USSE_EDM_POWMAN_POWEROFF_COMPLETE; + PDUMPCOMMENT("SGX power off request"); + } + else + { + + ui32PowerCmd = PVRSRV_POWERCMD_IDLE; + ui32CompleteStatus = PVRSRV_USSE_EDM_POWMAN_IDLE_COMPLETE; + PDUMPCOMMENT("SGX idle request"); + } + + sCommand.ui32Data[1] = ui32PowerCmd; + + eError = SGXScheduleCCBCommand(psDeviceNode, SGXMKIF_CMD_POWER, &sCommand, KERNEL_ID, 0, IMG_NULL, IMG_FALSE); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPrePowerState: Failed to submit power down command")); + return eError; + } + + + #if !defined(NO_HARDWARE) + if (PollForValueKM(&psDevInfo->psSGXHostCtl->ui32PowerStatus, + ui32CompleteStatus, + ui32CompleteStatus, + MAX_HW_TIME_US, + MAX_HW_TIME_US/WAIT_TRY_COUNT, + IMG_FALSE) != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPrePowerState: Wait for SGX ukernel power transition failed.")); + SGXDumpDebugInfo(psDevInfo, IMG_FALSE); + PVR_DBG_BREAK; + } + #endif + + #if defined(PDUMP) + PDUMPCOMMENT("TA/3D CCB Control - Wait for power event on uKernel."); + PDUMPMEMPOL(psDevInfo->psKernelSGXHostCtlMemInfo, + offsetof(SGXMKIF_HOST_CTL, ui32PowerStatus), + ui32CompleteStatus, + ui32CompleteStatus, + PDUMP_POLL_OPERATOR_EQUAL, + 0, + MAKEUNIQUETAG(psDevInfo->psKernelSGXHostCtlMemInfo)); + #endif + +#if defined(SGX_FEATURE_MP) + ui32CoresEnabled = ((OSReadHWReg(psDevInfo->pvRegsBaseKM, EUR_CR_MASTER_CORE) & EUR_CR_MASTER_CORE_ENABLE_MASK) >> EUR_CR_MASTER_CORE_ENABLE_SHIFT) + 1; +#else + ui32CoresEnabled = 1; +#endif + + for (ui32Core = 0; ui32Core < ui32CoresEnabled; ui32Core++) + { + + SGXPollForClockGating(psDevInfo, + SGX_MP_CORE_SELECT(psDevInfo->ui32ClkGateStatusReg, ui32Core), + psDevInfo->ui32ClkGateStatusMask, + "Wait for SGX clock gating"); + } + + #if defined(SGX_FEATURE_MP) + + SGXPollForClockGating(psDevInfo, + psDevInfo->ui32MasterClkGateStatusReg, + psDevInfo->ui32MasterClkGateStatusMask, + "Wait for SGX master clock gating"); + + SGXPollForClockGating(psDevInfo, + psDevInfo->ui32MasterClkGateStatus2Reg, + psDevInfo->ui32MasterClkGateStatus2Mask, + "Wait for SGX master clock gating (2)"); + #endif + + if (eNewPowerState == PVRSRV_DEV_POWER_STATE_OFF) + { + + eError = SGXDeinitialise(psDevInfo); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPrePowerState: SGXDeinitialise failed: %u", eError)); + return eError; + } + } + } + + return PVRSRV_OK; +} + + +PVRSRV_ERROR SGXPostPowerState (IMG_HANDLE hDevHandle, + PVRSRV_DEV_POWER_STATE eNewPowerState, + PVRSRV_DEV_POWER_STATE eCurrentPowerState) +{ + if ((eNewPowerState != eCurrentPowerState) && + (eCurrentPowerState != PVRSRV_DEV_POWER_STATE_ON)) + { + PVRSRV_ERROR eError; + PVRSRV_DEVICE_NODE *psDeviceNode = hDevHandle; + PVRSRV_SGXDEV_INFO *psDevInfo = psDeviceNode->pvDevice; + SGXMKIF_HOST_CTL *psSGXHostCtl = psDevInfo->psSGXHostCtl; + + + psSGXHostCtl->ui32PowerStatus = 0; + #if defined(PDUMP) + PDUMPCOMMENT("Host Control - Reset power status"); + PDUMPMEM(IMG_NULL, psDevInfo->psKernelSGXHostCtlMemInfo, + offsetof(SGXMKIF_HOST_CTL, ui32PowerStatus), + sizeof(IMG_UINT32), PDUMP_FLAGS_CONTINUOUS, + MAKEUNIQUETAG(psDevInfo->psKernelSGXHostCtlMemInfo)); + #endif + + if (eCurrentPowerState == PVRSRV_DEV_POWER_STATE_OFF) + { + + + + + eError = SGXUpdateTimingInfo(psDeviceNode); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPostPowerState: SGXUpdateTimingInfo failed")); + return eError; + } + + + + eError = SGXInitialise(psDevInfo, IMG_FALSE); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPostPowerState: SGXInitialise failed")); + return eError; + } + } + else + { + + + SGXMKIF_COMMAND sCommand = {0}; + + sCommand.ui32Data[1] = PVRSRV_POWERCMD_RESUME; + eError = SGXScheduleCCBCommand(psDeviceNode, SGXMKIF_CMD_POWER, &sCommand, ISR_ID, 0, IMG_NULL, IMG_FALSE); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPostPowerState failed to schedule CCB command: %u", eError)); + return eError; + } + } + + SGXStartTimer(psDevInfo); + } + + return PVRSRV_OK; +} + + +PVRSRV_ERROR SGXPreClockSpeedChange (IMG_HANDLE hDevHandle, + IMG_BOOL bIdleDevice, + PVRSRV_DEV_POWER_STATE eCurrentPowerState) +{ + PVRSRV_ERROR eError; + PVRSRV_DEVICE_NODE *psDeviceNode = hDevHandle; + PVRSRV_SGXDEV_INFO *psDevInfo = psDeviceNode->pvDevice; + + PVR_UNREFERENCED_PARAMETER(psDevInfo); + + if (eCurrentPowerState == PVRSRV_DEV_POWER_STATE_ON) + { + if (bIdleDevice) + { + + PDUMPSUSPEND(); + + eError = SGXPrePowerState(hDevHandle, PVRSRV_DEV_POWER_STATE_IDLE, + PVRSRV_DEV_POWER_STATE_ON); + + if (eError != PVRSRV_OK) + { + PDUMPRESUME(); + return eError; + } + } + } + + PVR_DPF((PVR_DBG_MESSAGE,"SGXPreClockSpeedChange: SGX clock speed was %uHz", + psDevInfo->ui32CoreClockSpeed)); + + return PVRSRV_OK; +} + + +PVRSRV_ERROR SGXPostClockSpeedChange (IMG_HANDLE hDevHandle, + IMG_BOOL bIdleDevice, + PVRSRV_DEV_POWER_STATE eCurrentPowerState) +{ + PVRSRV_DEVICE_NODE *psDeviceNode = hDevHandle; + PVRSRV_SGXDEV_INFO *psDevInfo = psDeviceNode->pvDevice; + IMG_UINT32 ui32OldClockSpeed = psDevInfo->ui32CoreClockSpeed; + + PVR_UNREFERENCED_PARAMETER(ui32OldClockSpeed); + + if (eCurrentPowerState == PVRSRV_DEV_POWER_STATE_ON) + { + PVRSRV_ERROR eError; + + + + eError = SGXUpdateTimingInfo(psDeviceNode); + if (eError != PVRSRV_OK) + { + PVR_DPF((PVR_DBG_ERROR,"SGXPostPowerState: SGXUpdateTimingInfo failed")); + return eError; + } + + if (bIdleDevice) + { + + eError = SGXPostPowerState(hDevHandle, PVRSRV_DEV_POWER_STATE_ON, + PVRSRV_DEV_POWER_STATE_IDLE); + + PDUMPRESUME(); + + if (eError != PVRSRV_OK) + { + return eError; + } + } + else + { + SGXStartTimer(psDevInfo); + } + } + + PVR_DPF((PVR_DBG_MESSAGE,"SGXPostClockSpeedChange: SGX clock speed changed from %uHz to %uHz", + ui32OldClockSpeed, psDevInfo->ui32CoreClockSpeed)); + + return PVRSRV_OK; +} + + |