similar to: [RFC 0/4] Implement full clockgating for Kepler1 and 2

Displaying 20 results from an estimated 400 matches similar to: "[RFC 0/4] Implement full clockgating for Kepler1 and 2"

2018 Jan 15
6
[RFC 0/4] Implement full clockgating for Kepler1 and 2
It's here! After a lot of investigation, rewrites, and traces, I present the patch series to implement all known levels of clockgating for Kepler1 and Kepler2 GPUs. Starting with Fermi GPUs (this is probably 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
2018 Jan 26
6
[RFC v3 0/4] Implement full clockgating for Kepler1 and 2
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
2018 Jan 29
5
[RFC v4 0/5] Implement full clockgating for Kepler1 and 2
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
2018 Jan 30
5
[RFC v5 0/5] Implement full clockgating for Kepler1 and 2
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
2018 Feb 01
5
[RFC v6 0/5] Implement full clockgating for Kepler1 and 2
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
2018 Jan 26
6
[RFC v2 0/4] Implement full clockgating for Kepler1 and 2
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
2018 Apr 13
0
[PATCH] drm/nouveau: Add missing fb SLCG registers for kepler2
Somehow I didn't manage to notice this the last time I looked at my mmiotraces, these seem to be all valid registers. Forwarding this to stable, as there's a small chance that not having these could cause clockgating to be unstable. Signed-off-by: Lyude Paul <lyude at redhat.com> Fixes: a0f79082bd174 ("drm/nouveau: Add support for SLCG for Kepler2") Cc: stable at
2017 Apr 25
6
[PATCH] drm/nouveau: Add support for clockgating on Fermi+
This adds support for enabling automatic clockgating on nvidia GPUs for Fermi and later generations. This saves a little bit of power, bringing my fermi GPU's power consumption from ~28.3W on idle to ~27W, and my kepler's idle power consumption from ~23.6W to ~21.65W. Similar to how the nvidia driver seems to handle this, we enable clockgating for each engine that supports it after
2018 Jan 26
1
[RFC v2 1/4] drm/nouveau: Add support for basic clockgating on Kepler1
On Fri, Jan 26, 2018 at 4:35 AM, Lyude Paul <lyude at redhat.com> wrote: > This adds support for enabling automatic clockgating on nvidia GPUs for > Kepler1. 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
2018 Jan 26
0
[RFC v3 2/4] drm/nouveau: Add support for BLCG on Kepler1
This enables BLCG optimization for kepler1. When using clockgating, nvidia's firmware has a set of registers which are initially 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
2018 Jan 26
1
[RFC v2 3/4] drm/nouveau: Add support for BLCG on Kepler2
On Thu, Jan 25, 2018 at 10:35 PM, Lyude Paul <lyude at redhat.com> wrote: > Same as the previous patch, but for Kepler2 now > > Signed-off-by: Lyude Paul <lyude at redhat.com> > --- > drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h | 1 + > drivers/gpu/drm/nouveau/nvkm/engine/device/base.c | 8 +-- > drivers/gpu/drm/nouveau/nvkm/engine/gr/gk110.c | 62
2017 Apr 25
0
[PATCH] drm/nouveau: Add support for clockgating on Fermi+
Thanks for the work so far. A quick scan through the first NVC4 trace at hand, using upstream demmio, reveals at least 20 writes to the BLCG registers of PGRAPH and a few in PXBAR prior to altering the value of register 0x20200 (see below). We know that these are related to the clock gating you enable. Are you 110% sure that fiddling with 0x20200 bits without first setting these values can
2018 Jan 26
0
[RFC v2 1/4] drm/nouveau: Add support for basic clockgating on Kepler1
This adds support for enabling automatic clockgating on nvidia GPUs for Kepler1. 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
2018 Jan 26
0
[RFC v3 1/4] drm/nouveau: Add support for basic clockgating on Kepler1
This adds support for enabling automatic clockgating on nvidia GPUs for Kepler1. 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
2018 Jan 26
0
[RFC v2 3/4] drm/nouveau: Add support for BLCG on Kepler2
Same as the previous patch, but for Kepler2 now Signed-off-by: Lyude Paul <lyude at redhat.com> --- drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h | 1 + drivers/gpu/drm/nouveau/nvkm/engine/device/base.c | 8 +-- drivers/gpu/drm/nouveau/nvkm/engine/gr/gk110.c | 62 ++++++++++++++++++++ drivers/gpu/drm/nouveau/nvkm/subdev/fb/Kbuild | 1 +
2018 Feb 07
1
[PATCH] drm/nouveau: Make clock gate support conditional
From: Thierry Reding <treding at nvidia.com> The recently introduced clock gate support breaks on Tegra chips because no thermal support is enabled for those devices. Conditionalize the code on the existence of thermal support to fix this. Fixes: b138eca661cc ("drm/nouveau: Add support for basic clockgating on Kepler1") Cc: Martin Peres <martin.peres at free.fr> Cc: Lyude
2018 Jan 15
0
[RFC 1/4] drm/nouveau: Add support for basic clockgating on Kepler1
This adds support for enabling 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() -
2017 Apr 26
1
[PATCH] drm/nouveau: Add support for clockgating on Fermi+
On Wed, 2017-04-26 at 00:49 +0200, Karol Herbst wrote: > Hi Lyude, > > thanks for the great work. Just a view comments inline. > > 2017-04-25 20:38 GMT+02:00 Lyude <lyude at redhat.com>: > > This adds support for enabling automatic clockgating on nvidia GPUs > > for > > Fermi and later generations. This saves a little bit of power, > > bringing >
2018 Feb 14
2
4.16-rc1: UBSAN warning in nouveau/nvkm/subdev/therm/base.c + oops in nvkm_therm_clkgate_fini
On 2018-02-14 — 09:36, Ilia Mirkin wrote: > On Wed, Feb 14, 2018 at 9:35 AM, Ilia Mirkin <imirkin at alum.mit.edu> wrote: > > On Wed, Feb 14, 2018 at 9:29 AM, Meelis Roos <mroos at linux.ee> wrote: > >>> This is 4.16-rc1+todays git on a lowly P4 with NV5, worked fine in 4.15: > >> > >> NV5 in another PC (secondary card in x86-64) made the systrem
2017 Apr 26
0
[PATCH v2] drm/nouveau: Add support for clockgating on Fermi+
This adds support for enabling automatic clockgating on nvidia GPUs for Fermi and later generations. This saves a little bit of power, bringing my fermi GPU's power consumption from ~28.3W on idle to ~27W, and my kepler's idle power consumption from ~23.6W to ~21.65W. Similar to how the nvidia driver seems to handle this, we enable clockgating for each engine that supports it after