diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/radeon.h | 7 | ||||
| -rw-r--r-- | src/radeon_driver.c | 10 | ||||
| -rw-r--r-- | src/radeon_pm.c | 26 |
3 files changed, 42 insertions, 1 deletions
diff --git a/src/radeon.h b/src/radeon.h index 60d56db2..88de0e8f 100644 --- a/src/radeon.h +++ b/src/radeon.h @@ -207,7 +207,8 @@ typedef enum { OPTION_INT10, OPTION_EXA_VSYNC, OPTION_ATOM_TVOUT, - OPTION_R4XX_ATOM + OPTION_R4XX_ATOM, + OPTION_FORCE_LOW_POWER } RADEONOpts; @@ -891,6 +892,9 @@ typedef struct { Bool r4xx_atom; + /* pm */ + Bool low_power_mode; + } RADEONInfoRec, *RADEONInfoPtr; #define RADEONWaitForFifo(pScrn, entries) \ @@ -1070,6 +1074,7 @@ extern void RADEONRestoreMemMapRegisters(ScrnInfoPtr pScrn, /* radeon_pm.c */ extern void RADEONSetClockGating(ScrnInfoPtr pScrn, Bool enable); +extern void RADEONStaticLowPowerMode(ScrnInfoPtr pScrn, Bool enable); #ifdef USE_EXA /* radeon_exa.c */ diff --git a/src/radeon_driver.c b/src/radeon_driver.c index fe00dd79..ac1a151e 100644 --- a/src/radeon_driver.c +++ b/src/radeon_driver.c @@ -195,6 +195,7 @@ static const OptionInfoRec RADEONOptions[] = { { OPTION_EXA_VSYNC, "EXAVSync", OPTV_BOOLEAN, {0}, FALSE }, { OPTION_ATOM_TVOUT, "ATOMTVOut", OPTV_BOOLEAN, {0}, FALSE }, { OPTION_R4XX_ATOM, "R4xxATOM", OPTV_BOOLEAN, {0}, FALSE }, + { OPTION_FORCE_LOW_POWER, "ForceLowPowerMode", OPTV_BOOLEAN, {0}, FALSE }, { -1, NULL, OPTV_NONE, {0}, FALSE } }; @@ -3333,6 +3334,9 @@ Bool RADEONScreenInit(int scrnIndex, ScreenPtr pScreen, else RADEONSetClockGating(pScrn, FALSE); + if (xf86ReturnOptValBool(info->Options, OPTION_FORCE_LOW_POWER, FALSE)) + RADEONStaticLowPowerMode(pScrn, TRUE); + if (info->allowColorTiling && (pScrn->virtualX > info->MaxSurfaceWidth)) { xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Color tiling not supported with virtual x resolutions larger than %d, disabling\n", @@ -5593,6 +5597,9 @@ Bool RADEONEnterVT(int scrnIndex, int flags) else RADEONSetClockGating(pScrn, FALSE); + if (xf86ReturnOptValBool(info->Options, OPTION_FORCE_LOW_POWER, FALSE)) + RADEONStaticLowPowerMode(pScrn, TRUE); + for (i = 0; i < config->num_crtc; i++) radeon_crtc_modeset_ioctl(config->crtc[i], TRUE); @@ -5753,6 +5760,9 @@ static Bool RADEONCloseScreen(int scrnIndex, ScreenPtr pScreen) xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, RADEON_LOGLEVEL_DEBUG, "RADEONCloseScreen\n"); + if (xf86ReturnOptValBool(info->Options, OPTION_FORCE_LOW_POWER, FALSE)) + RADEONStaticLowPowerMode(pScrn, FALSE); + /* Mark acceleration as stopped or we might try to access the engine at * wrong times, especially if we had DRI, after DRI has been stopped */ diff --git a/src/radeon_pm.c b/src/radeon_pm.c index 89e1d8ab..86d739b2 100644 --- a/src/radeon_pm.c +++ b/src/radeon_pm.c @@ -476,3 +476,29 @@ RADEONSetClockGating(ScrnInfoPtr pScrn, Bool enable) enable ? "En" : "Dis"); } +void RADEONStaticLowPowerMode(ScrnInfoPtr pScrn, Bool enable) +{ + RADEONInfoPtr info = RADEONPTR(pScrn); + int sclk = (int)info->sclk * 100; /* 10 khz */ + + RADEONWaitForIdleMMIO(pScrn); + + if (enable) { + if (info->IsAtomBios) + atombios_set_engine_clock(pScrn, sclk/2); + else + RADEONSetEngineClock(pScrn, sclk/2); + + info->low_power_mode = TRUE; + } else { + if (info->IsAtomBios) + atombios_set_engine_clock(pScrn, sclk); + else + RADEONSetEngineClock(pScrn, sclk); + + info->low_power_mode = FALSE; + } + + xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Low Power Mode %sabled\n", + enable ? "En" : "Dis"); +} |