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* drm/nouveau/tmr: handle races with hw when updating the next alarm timeBen Skeggs2017-05-25
| | | | | | | | | | | | | commit 1b0f84380b10ee97f7d2dd191294de9017e94d1d upstream. If the time to the next alarm is short enough, we could race with HW and end up with an ~4 second delay until it triggers. Fix this by checking again after we update HW. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drm/nouveau/tmr: avoid processing completed alarms when adding a new oneBen Skeggs2017-05-25
| | | | | | | | | | | | | | commit 330bdf62fe6a6c5b99a647f7bf7157107c9348b3 upstream. The idea here was to avoid having to "manually" program the HW if there's a new earliest alarm. This was lazy and bad, as it leads to loads of fun races between inter-related callers (ie. therm). Turns out, it's not so difficult after all. Go figure ;) Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drm/nouveau/tmr: fix corruption of the pending list when rescheduling an alarmBen Skeggs2017-05-25
| | | | | | | | | | | | | | commit 9fc64667ee48c9a25e7dca1a6bcb6906fec5bcc5 upstream. At least therm/fantog "attempts" to work around this issue, which could lead to corruption of the pending alarm list. Fix it properly by not updating the timestamp without the lock held, or trying to add an already pending alarm to the pending alarm list.... Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drm/nouveau/tmr: ack interrupt before processing alarmsBen Skeggs2017-05-25
| | | | | | | | | | | commit 3733bd8b407211739e72d051e5f30ad82a52c4bc upstream. Fixes a race where we can miss an alarm that triggers while we're already processing previous alarms. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drm/nouveau/therm: remove ineffective workarounds for alarm bugsBen Skeggs2017-05-25
| | | | | | | | | | | commit e4311ee51d1e2676001b2d8fcefd92bdd79aad85 upstream. These were ineffective due to touching the list without the alarm lock, but should no longer be required. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drm/nouveau/ltc: protect clearing of comptags with mutexBen Skeggs2017-01-09
| | | | | | | | commit f4e65efc88b64c1dbca275d42a188edccedb56c6 upstream. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* drm/nouveau/bios: require checksum to match for fast acpi shadow methodBen Skeggs2017-01-09
| | | | | | | | commit 5dc7f4aa9d84ea94b54a9bfcef095f0289f1ebda upstream. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* dma-mapping: use unsigned long for dma_attrsKrzysztof Kozlowski2016-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dma-mapping core and the implementations do not change the DMA attributes passed by pointer. Thus the pointer can point to const data. However the attributes do not have to be a bitfield. Instead unsigned long will do fine: 1. This is just simpler. Both in terms of reading the code and setting attributes. Instead of initializing local attributes on the stack and passing pointer to it to dma_set_attr(), just set the bits. 2. It brings safeness and checking for const correctness because the attributes are passed by value. Semantic patches for this change (at least most of them): virtual patch virtual context @r@ identifier f, attrs; @@ f(..., - struct dma_attrs *attrs + unsigned long attrs , ...) { ... } @@ identifier r.f; @@ f(..., - NULL + 0 ) and // Options: --all-includes virtual patch virtual context @r@ identifier f, attrs; type t; @@ t f(..., struct dma_attrs *attrs); @@ identifier r.f; @@ f(..., - NULL + 0 ) Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> Acked-by: Mark Salter <msalter@redhat.com> [c6x] Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris] Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm] Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Joerg Roedel <jroedel@suse.de> [iommu] Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp] Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core] Acked-by: David Vrabel <david.vrabel@citrix.com> [xen] Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb] Acked-by: Joerg Roedel <jroedel@suse.de> [iommu] Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon] Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390] Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32] Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc] Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drm/nouveau/fb/gp104: initial supportBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/secboot/gm200: initial supportBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/ltc/gp100: initial supportBen Skeggs2016-07-13
| | | | | | | | Due to the GPU preventing us from touching NV_PLTCG_LTCS_LTSS_CBC_BASE, we cannot provide CBC/ZBC support without signed PMU firmware to handle the task for us... Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/fb/gp100: initial supportBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/bios/rammap: 32-bit bios pointersBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/bios/pll: initial support for BIT 'C' version 2Ben Skeggs2016-07-13
| | | | | | Just enough to get at the PLL table. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/bios/dp: initial support for 4.2Ben Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/pci/gp100: initial supportBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/mc/gp100: initial supportBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/top/gp100: initial supportBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/fb/gf100-: allow selection of an alternate big page sizeBen Skeggs2016-07-13
| | | | | | | | | | | | | GFxxx/GM1xx support the selection of 64/128KiB big pages globally. GM2xx supports the same, as well as another mode where the page size can be selected per-instance. We default to 128KiB pages (With per-instance for GM200, but the current code selects 128KiB there already) as the MMU code isn't currently able to handle otherwise. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/bios: pointers beyond end of first image need special handlingBen Skeggs2016-07-13
| | | | | | | | | Makes common the code that was previously used by the PMU table parsing, as it appears other tables need this too. Not much of an idea what this is all about... Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/bios: guard against out-of-bounds accesses to imageBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/ltc/gm107-: decode interrupt status to human-readable stringsBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gf100: Read secondary bypass postdiv when requiredRoy Spliet2016-07-13
| | | | | | | v2: fix typo it's -> its Signed-off-by: Roy Spliet <nouveau@spliet.org> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gf100-: Clean up PLL locking testRoy Spliet2016-07-13
| | | | | | | | | | | Corresponds with GT215. Don't rely on the lock test logic being unconditionally enabled, and disable test logic when done (presumably to save power). v2: Remove warning, nvkm_msec already warns on time-out Signed-off-by: Roy Spliet <nouveau@spliet.org> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/secboot: lazy-load firmware and be more resilientAlexandre Courbot2016-07-13
| | | | | | | | | | | | | | | Defer the loading of firmware files to the chip-specific part of secure boot. This allows implementations to retry loading firmware if the first attempt failed ; for the GM200 implementation, this happens when trying to reset a falcon, typically in reaction to GR init. Firmware loading may fail for a variety of reasons, such as the filesystem where they reside not being ready at init time. This new behavior allows GR to be initialized the next time we try to use it if the firmware has become available. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/secboot/gm200: make firmware loading re-callableAlexandre Courbot2016-07-13
| | | | | | | | | | Make it possible to call gm20x_secboot_prepare_blobs() several times after either success or failure without re-building already existing blobs. The function will now try to load firmware files that have previously failed before returning success. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/secboot: fix kerneldoc for secure boot structuresAlexandre Courbot2016-07-13
| | | | | | | Some members were documented in the wrong structure. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/volt: save the voltage range we are able to setKarol Herbst2016-07-13
| | | | | | | | | | We shouldn't set voltages below the min or above the max voltage the gpu is able to set, so save the range for future lookups. Signed-off-by: Karol Herbst <karolherbst@gmail.de> Reviewed-by: Martin Peres <martin.peres@free.fr> Tested-by: Pierre Moreau <pierre.morrow@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gm20b: add glitchless and DFS supportAlexandre Courbot2016-07-13
| | | | | | | | | | | | | | | | | | | | | | This patch adds support for advanced features supported by the Noise-Aware PLL of Maxwell. Glitchless switch allows the PL field to be updated without disabling the PLL first if the SYNC_MODE bit of the CFG register is set. More significantly, DFS allows the PLL to monitor the actual input voltage and to dynamically lower the output frequency accordingly. This allows the clock to be more tolerant of lower voltages. These improvements are only supported for Tegra speedos >= 1. Also add the voltage table that is suitable for GM20B's NAPLL. This change needs to be done atomically for the right voltages to be used by the clock driver. v2. Fix build on non-Tegra platforms Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: rename constructorAlexandre Courbot2016-07-13
| | | | | | | Strip the _ prefix off the gk20a clock constructor. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: improve MNP programmingAlexandre Courbot2016-07-13
| | | | | | | | | | | | | | | Split the MNP programming function into two functions for the cases where we allow sliding or not, instead of making it take a parameter for this. This results in less conditionals in the code and makes it easier to read. Also make the MNP programming functions take the PLL parameters as arguments, and move bits of code to more relevant places (previous programming tended to be just-in-time, which added more conditionnals in the code). Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: factorize n_lo computation codeAlexandre Courbot2016-07-13
| | | | | | | Use a dedicated function instead of always calculating n_lo on the fly. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: parameterize PLL settingsAlexandre Courbot2016-07-13
| | | | | | | | | | Make functions manipulating PLL settings take them as an argument, instead of assuming we want to work on the copy in the gk20a_clk structure. This makes these functions more flexible, which we will need in GM20B. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: add and use MNP programming functionsAlexandre Courbot2016-07-13
| | | | | | | | Add relevant functions to work with the gk20a_pll structure and use them where they ought to be instead of directly manipulating registers. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: use nvkm_ functions in slide()Alexandre Courbot2016-07-13
| | | | | Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: reorganize MNP calculation a bitAlexandre Courbot2016-07-13
| | | | | | | | Move variables declarations to their actual scope of use, and simplify code a bit. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: setup slide once during initAlexandre Courbot2016-07-13
| | | | | | | | Slide setup needs to be performed only once, during init. Also use the proper parameters for different clock speeds. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/clk/gk20a: properly protect macro argumentAlexandre Courbot2016-07-13
| | | | | Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/volt/gm20b: add support for vmin parameterAlexandre Courbot2016-07-13
| | | | | | | | | Chips may be characterized for a minimum voltage. Support this extra parameter and select the appropriate minimum voltage for the detected GPU speedo. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/volt/gk20a: rename constructorAlexandre Courbot2016-07-13
| | | | | | | Strip the _ prefix off the gk20a volt constructor. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/volt/gk20a: constify and name v_scaleAlexandre Courbot2016-07-13
| | | | | | | | Give a name to this constant so we at least get an idea of what it is for. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/volt/gk20a: make unused public functions staticAlexandre Courbot2016-07-13
| | | | | | | Nobody else is using these, so make them private. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/secboot: use nvkm_mc_enable/disable()Ben Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/secboot: use nvkm_mc_intr_mask/unmask()Ben Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/mc/gk104-: add pmu reset maskBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/mc/gf100-: support for masking interruptsBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/mc/gt215: support for masking interruptsBen Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/mc: support for temporarily masking interrupts from a specific ↵Ben Skeggs2016-07-13
| | | | | | device Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/mc: s/intr_mask/intr_stat/Ben Skeggs2016-07-13
| | | | Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
* drm/nouveau/mc: expose device enable/disable separately, as well as resetBen Skeggs2016-07-13
| | | | | | | | | | There are cases where subdevs need to perform additonal actions around the master reset, so we want to expost the operations separately. This commit also adds a flag to the NV_PMC_ENABLE bitfield definitions which allow skipping the automatic reset() called from core/subdev.c. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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