search for: cg_ctrl

...robably present on earlier GPUs as well, but with a far less easy to manage interface), nvidia added two clockgating levels that are handled mostly in firmware (with the exception of course, of the driver initially programming all of the register values containing engine delays and that stuff): - CG_CTRL - Main register for enabling/disabling clockgating for engines and hw blocks - BLCG - "Block-level clockgating", a deeper level of clockgating Starting with kepler2 as well, nvidia also introduced: - SLCG - "??? clockgating" even deeper level of clockgating Originally t...

...robably present on earlier GPUs as well, but with a far less easy to manage interface), nvidia added two clockgating levels that are handled mostly in firmware (with the exception of course, of the driver initially programming all of the register values containing engine delays and that stuff): - CG_CTRL - Main register for enabling/disabling clockgating for engines and hw blocks - BLCG - "Block-level clockgating", a deeper level of clockgating Starting with kepler2 as well, nvidia also introduced: - SLCG - "??? clockgating" even deeper level of clockgating Originally t...

...ating level, it does > enable clockgating using the clockgating values initially set by the > vbios (which should be safe to use). > > This introduces two therm helpers for controlling basic clockgating: > nvkm_therm_clkgate_enable() - enables clockgating through > CG_CTRL, done after initializing the GPU fully > nvkm_therm_clkgate_fini() - prepares clockgating for suspend or > driver unload > > As well, we add the nouveau kernel config parameter NvPmEnableGating, > which can be toggled on or off in order to enable/disable clockgating....

...er1. While this is not technically a clockgating level, it does enable clockgating using the clockgating values initially set by the vbios (which should be safe to use). This introduces two therm helpers for controlling basic clockgating: nvkm_therm_clkgate_enable() - enables clockgating through CG_CTRL, done after initializing the GPU fully nvkm_therm_clkgate_fini() - prepares clockgating for suspend or driver unload As well, we add the nouveau kernel config parameter NvPmEnableGating, which can be toggled on or off in order to enable/disable clockgating. Since we've only had limited testi...

...er1. While this is not technically a clockgating level, it does enable clockgating using the clockgating values initially set by the vbios (which should be safe to use). This introduces two therm helpers for controlling basic clockgating: nvkm_therm_clkgate_enable() - enables clockgating through CG_CTRL, done after initializing the GPU fully nvkm_therm_clkgate_fini() - prepares clockgating for suspend or driver unload As well, we add the nouveau kernel config parameter NvPmEnableGating, which can be toggled on or off in order to enable/disable clockgating. Since we've only had limited testi...

...bling automatic clockgating on nvidia GPUs for Kepler1, referred to as "CG" throughout the driver. This is one of two powersaving levels that Kepler1 supports. This introduces two therm helpers for controlling basic clockgating: nvkm_therm_clkgate_enable() - enables clockgating through CG_CTRL, done after initializing the GPU fully nvkm_therm_clkgate_fini() - prepares clockgating for suspend or driver unload As well, we add the nouveau kernel config parameter NvPmEnableGating, which can be set to the highest level of clockgating (in this case, we only have CG) the user desires to enab...

Next version of my patchseries for adding clockgating support for kepler1 and 2 on nouveau. The first version of this series can be found here: https://patchwork.freedesktop.org/series/36504/ Some very important changes: - Fix gf100_clkgate_init() to actually write registers! This got broken in the last version by accident - Dump the register packs and the resulting register writes into

Next version of my patchseries for adding clockgating support for kepler1 and 2 on nouveau. The first version of this series can be found here: https://patchwork.freedesktop.org/series/36504/ Some minor changes: - Clarified that SLCG stands for 'secondary level clockgating', thanks for the small tip nvidia! - Removed the concept of levels, this was more useful for debugging then

Next version of my patchseries for adding clockgating support for kepler1 and 2 on nouveau. The first version of this series can be found here: https://patchwork.freedesktop.org/series/36504/ One small change: - Set therm->clkgate_enabled to false until the last patch, where we introduce the NvPmEnableGating option Lyude Paul (5): drm/nouveau: Add support for basic clockgating on

Next version of my patchseries for adding clockgating support for kepler1 and 2 on nouveau. The first version of this series can be found here: https://patchwork.freedesktop.org/series/36504/ One small change: - Add Martin's R-B, whoops Lyude Paul (5): drm/nouveau: Add support for basic clockgating on Kepler1 drm/nouveau: Add support for BLCG on Kepler1 drm/nouveau: Add support for

Next version of my patchseries for adding clockgating support for kepler1 and 2 on nouveau. The first version of this series can be found here: https://patchwork.freedesktop.org/series/36504/ Some small changes (shouldn't change anything functionally): - Made gf100_therm_new, gk104_clkgate_pack, and gk110_fb_clkgate_blcg_init_unk_0 static (re: kbuild test bot) - Making all three of

...y programmed by the vbios with various engine delays and other mysterious settings that are safe enough to bring up the GPU. However, the values used by the vbios are more power hungry then they need to be, so the nvidia driver writes it's own more optimized set of BLCG settings before enabling CG_CTRL. This adds support for programming the optimized BLCG values during engine/subdev init, which enables rather significant power savings. This introduces the nvkm_therm_clkgate_init() helper, which we use to program the optimized BLCG settings before enabling clockgating with nvkm_therm_clkgate_enab...