similar to: [PATCH 1/3] platform: release IOMMU's mm upon exit

From: Deepak Goyal <dgoyal at nvidia.com> - Maps PMU firmware into PMU virtual memory. - Copy bootloader into PMU memory and start it. - Allow the PMU to interact with HOST via interrupts. PMU after successful configurations (to follow after this patch) will: 1.Autonomously power gate graphics engine when not in use.It will save us a lot of power. 2.Provide better way to scale frequencies

Two trivial PMU-related fixes for Tegra: - Add a dummy func member to GK20A, since nvkm_pmmu_pgob() unconditionally dereferences it - Check whether a PMU actually exists before calling nvkm_pmmu_pgob(). During early bringup we are likely to not have a PMU Alexandre Courbot (2): pmu/gk20a: add dummy func gr/gf100: do not assume a PMU is present drm/nouveau/nvkm/engine/gr/gf100.c | 3 ++-

This was the first step of the secure boot refactoring - as Ben asked for some fixes, I now submit it as its own series to make it easier to review (and also because rebasing secure boot on top of this takes time and I don't want to do it until this is validated!). This series attempts to factorize the duplicate falcon-related code into a single library, using the existing nvkm_falcon

Thanks Ilia for the v2 review! Here is the v3 of this IOMMU support for GK20A series. Changes since v2: - Cleaner changes for ltc - Fixed typos in gk20a instmem IOMMU comments Changes since v1: - Add missing else condition in ltc - Remove extra flags that slipped into nouveau_display.c and nv84_fence.c. Original cover letter: Patches 1-3 make the presence of a RAM device optional, and remove

Changes since v3: - Use a single dma_attr for all DMA-API allocations in instmem instead of one per allocation - Use device.info.ram_size instead of pfb->ram to check whether VRAM is present outside of nvkm Changes since v2: - Cleaner changes for ltc - Fixed typos in gk20a instmem IOMMU comments Changes since v1: - Add missing else condition in ltc - Remove extra flags that slipped into

Changes since v1: - Add missing else condition in ltc - Remove extra flags that slipped into nouveau_display.c and nv84_fence.c. Original cover letter: Patches 1-3 make the presence of a RAM device optional, and remove GK20A's dummy RAM driver we were using so far. On chips using shared memory, such a device can confuse the driver into moving objects where there is no need to, and can trick

A series I have waited too long to submit, and the recent refactoring made me pay the price of my perfectionism, so here are the features that are at least completed Patches 1-3 make the presence of a RAM device optional, and remove GK20A's dummy RAM driver we were using so far. On chips using shared memory, such a device can confuse the driver into moving objects where there is no need to,

Here are a few small fixes for issues we found while implementing support for GM20B. The first two are specific to Tegra/GK20A, but the last 3 patches may have a broader (hopefully beneficial) effect. Note that the newly introduced gf100_gr_wait_idle() function on patch 5/5 is exported on purpose. GK20A and GM20B drivers will soon make use of it. Ben, since you seemed to like these changes, a

- Maps PMU firmware into PMU virtual memory. - Copy bootloader into PMU memory and start it. - Allow the PMU to interact with HOST via interrupts. PMU after successful configurations (to follow after this patch) will: 1.Autonomously power gate graphics engine when not in use.It will save us a lot of power. 2.Provide better way to scale frequencies by reporting Perf counters. 3.Be critical for GPU

Having a RAM device does not make sense for chips like GK20A which have no dedicated video memory. The dummy RAM device that we used so far works as a temporary band-aid, but in the long-term it is desirable for the driver to be able to work without any kind of VRAM. This patch adds a few conditionals in places where a RAM device was assumed to be present and allows some more objects to be

Having a RAM device does not make sense for chips like GK20A which have no dedicated video memory. The dummy RAM device that we used so far works as a temporary band-aid, but in the long-term it is desirable for the driver to be able to work without any kind of VRAM. This patch adds a few conditionals in places where a RAM device was assumed to be present and allows some more objects to be

LTC device is now required for PGRAPH to work, add it. Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> --- nvkm/engine/device/nve0.c | 1 + 1 file changed, 1 insertion(+) diff --git a/nvkm/engine/device/nve0.c b/nvkm/engine/device/nve0.c index 54ec53bc6252..cdf9147f32a1 100644 --- a/nvkm/engine/device/nve0.c +++ b/nvkm/engine/device/nve0.c @@ -163,6 +163,7 @@

Having a RAM device does not make sense for chips like GK20A which have no dedicated video memory. The dummy RAM device that we used so far works as a temporary band-aid, but in the long-term it is desirable for the driver to be able to work without any kind of VRAM. This patch adds a few conditionals in places where a RAM device was assumed to be present and allows some more objects to be

Having the two modules separated causes various unneeded complications, including having to export symbols accessed between the modules. Make things simpler by compiling platform device support into nouveau.ko. Platform device support remains optional and is only compiled on Tegra. Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> --- Vince, with this you won't have to export

Am Dienstag, den 23.12.2014, 18:39 +0800 schrieb Vince Hsu: > This patch adds some missing pieces of the rail gaing/ungating sequence that > can improve the stability in theory. > > Signed-off-by: Vince Hsu <vinceh at nvidia.com> > --- > drm/nouveau_platform.c | 42 ++++++++++++++++++++++++++++++++++++++++++ > drm/nouveau_platform.h | 3 +++ > 2 files changed, 45

Fix build with CONFIG_NOUVEAU_PLATFORM_DRIVER enabled: ../drivers/gpu/drm/nouveau/nouveau_platform.c: In function ?nouveau_platform_probe?: ../drivers/gpu/drm/nouveau/nouveau_platform.c:29:13: error: unused variable ?ret? [-Werror=unused-variable] 29 | int ret; | ^~~ Fixes: 961ae5f9807b ("drm/nouveau: handle pci/tegra drm_dev_{alloc, register} from common

These 4 patches fix two issues that existed on Tegra regarding DMA: 1) The bit indicating whether to use an IOMMU or not was hardcoded ; make this a platform property and use it in instmem 2) The DMA mask was not set for platform devices. Fix this by converting more pci_dma* to the DMA API, and use that more generic code to set the DMA mask properly for all platforms. Tested on both x86

This series adds support for probing platform devices on Nouveau, as well as the DT bindings for GK20A. It doesn't enable the GPU yet on Tegra boards since a few extra things need to be supported before that. This version is mostly identical to v2 but fixes an important issue: the drvdata must be set to the drm_device for sysfs to work, so the platform device structure now includes the

On 4.6, probing GM20B will freeze the system because of a missing clock that Nouveau must also enable. Since the DT bindings for this clock did not make it in time for 4.6, disable it for now. Signed-off-by: Alexandre Courbot <acourbot at nvidia.com> --- Ben, sorry for that, but could you take this for one of the next -rc? I will re-enable GM20B once the DT bindings have landed. Thanks!

Hi, This series includes some pieces of fixes to complete the GK20A power on/off sequences and add the suspend/resume support. The patches 1/11 - 4/11 are based on the linux-next-20141219. The patches 5/11 - 11/11 are based on the branch "linux-3.19" of Ben Skeggs's tree (http://cgit.freedesktop.org/~darktama/nouveau). Thanks, Vince Vince Hsu (4): (linux-next-20141219) ARM: