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783,042 commits

Author SHA1 Message Date
Sayali Lokhande
e0e4eee21c Documentation: sdhci-msm: Add new compatible string for SDCC v5
For SDCC version 5.0.0 and higher, new compatible string
"qcom,sdhci-msm-v5" is added.

Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>
Signed-off-by: Vijay Viswanath <vviswana@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Vijay Viswanath
6ed4bb4387 mmc: sdhci-msm: Add msm version specific ops and data structures
In addition to offsets of certain registers changing, the registers in
core_mem have been shifted to HC mem as well. To access these
registers, define msm version specific functions. These functions can
be loaded into the function pointers at the time of probe based on
the msm version detected.

Also defind new data structure to hold version specific Ops and
register addresses.

Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>
Signed-off-by: Vijay Viswanath <vviswana@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Sayali Lokhande
f15358885d mmc: sdhci-msm: Define new Register address map
For SDCC version 5.0.0, MCI registers are removed from SDCC
interface and some registers are moved to HC.
Define a new data structure where we can statically define
the address offsets for the registers in different SDCC versions.

Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>
Signed-off-by: Vijay Viswanath <vviswana@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Masaharu Hayakawa
26eb2607fa mmc: renesas_sdhi: add eMMC HS400 mode support
This patch adds processing for selecting HS400 mode.

Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Masaharu Hayakawa
db924bba47 mmc: tmio: add eMMC HS400 mode support
This patch adds processing for selecting HS400 mode.

Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Simon Horman
ba6c7ac3a2 mmc: core: more fine-grained hooks for HS400 tuning
This adds two new HS400 tuning operations:
* hs400_downgrade
* hs400_complete

These supplement the existing HS400 operation:
* prepare_hs400_tuning

This is motivated by a requirement of Renesas SDHI for the following:
1. Disabling SCC before selecting to HS if selection of HS400 has occurred.
   This can be done in an implementation of prepare_hs400_tuning_downgrade
2. Updating registers after switching to HS400
   This can be done in an implementation of complete_hs400_tuning

If hs400_downgrade or hs400_complete are not implemented then they are not
called. Thus means there should be no affect for existing drivers as none
implemt these ops.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Marek Szyprowski
ecf7c7c585 mmc: dw_mmc-exynos: fix potential external abort in resume_noirq()
dw_mci_exynos_resume_noirq() performs DWMMC register access without
ensuring that respective clocks are enabled. This might cause external
abort on some systems (observed on Exynos5433 based boards). Fix this
by forcing a PM runtime active state before register access. Using
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS allows also to cleanup conditional code
a bit.

Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Aapo Vienamo
75067aba7a mmc: tegra: Use sdhci_pltfm_clk_get_max_clock
The sdhci get_max_clock callback is set to sdhci_pltfm_clk_get_max_clock
and tegra_sdhci_get_max_clock is removed. It appears that the
shdci-tegra specific callback was originally introduced due to the
requirement that the host clock has to be twice the bus clock on DDR50
mode. As far as I can tell the only effect the removal has on DDR50 mode
is in cases where the parent clock is unable to supply the requested
clock rate, causing the DDR50 mode to run at a lower frequency.
Currently the DDR50 mode isn't enabled on any of the SoCs and would also
require configuring the SDHCI clock divider register to function
properly.

The problem with tegra_sdhci_get_max_clock is that it divides the clock
rate by two and thus artificially limits the maximum frequency of faster
signaling modes which don't have the host-bus frequency ratio requirement
of DDR50 such as SDR104 and HS200. Furthermore, the call to
clk_round_rate() may return an error which isn't handled by
tegra_sdhci_get_max_clock.

Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Shawn Lin
a94a7483a9 mmc: core: Adjust and reuse the macro of R1_STATUS(x)
R1_STATUS(x) now is only used by ioctl_rpmb_card_status_poll(),
which checks all bits as possible. But according to the spec,
bit 17 and bit 18 should be ignored, as well bit 14 which is
reserved(must be set to 0) quoting from the spec and these rule
apply to all places checking the device status. So change
its checking from 0xFFFFE000 to 0xFFF9A000.

As a bonus, we reuse it for mmc_do_erase() as well as
mmc_switch_status_error().
(1) Currently mmc_switch_status_error() doesn't check bit 25, but
it means device is locked but not unlocked by CMD42 prior to any
operations which need check busy, which is also not allowed.
(2) mmc_do_erase() also forgot to to check bit 15, WP_ERASE_SKIP.
The spec says "Only partial address space was erased due to existing
write protected blocks.", which obviously means we should fail this I/O.
Otherwise, the partial erased data stored in nonvalatile flash violates
the data integrity from the view of I/O owner, which probably confuse
it when further used.

So reusing R1_STATUS for them not only improve the readability but also
slove real problems.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-07-16 11:21:45 +02:00
Vitaly Kuznetsov
110d2a7fc3 x86/hyper-v: Check for VP_INVAL in hyperv_flush_tlb_others()
Commit 1268ed0c47 ("x86/hyper-v: Fix the circular dependency in IPI
 enlightenment") pre-filled hv_vp_index with VP_INVAL so it is now
(theoretically) possible to observe hv_cpu_number_to_vp_number()
returning VP_INVAL. We need to check for that in hyperv_flush_tlb_others().

Not checking for VP_INVAL on the first call site where we do

 if (hv_cpu_number_to_vp_number(cpumask_last(cpus)) >= 64)
                        goto do_ex_hypercall;

is OK, in case we're eligible for non-ex hypercall we'll catch the
issue later in for_each_cpu() cycle and in case we'll be doing ex-
hypercall cpumask_to_vpset() will fail.

It would be nice to change hv_cpu_number_to_vp_number() return
value's type to 'u32' but this will likely be a bigger change as
all call sites need to be checked first.

Fixes: 1268ed0c47 ("x86/hyper-v: Fix the circular dependency in IPI enlightenment")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
Cc: devel@linuxdriverproject.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/20180709174012.17429-3-vkuznets@redhat.com
2018-07-16 11:19:49 +02:00
Vitaly Kuznetsov
0f0caa52cd x86/hyper-v: Check cpumask_to_vpset() return value in hyperv_flush_tlb_others_ex()
Commit 1268ed0c47 ("x86/hyper-v: Fix the circular dependency in IPI
enlightenment") made cpumask_to_vpset() return '-1' when there is a CPU
with unknown VP index in the supplied set. This needs to be checked before
we pass 'nr_bank' to hypercall.

Fixes: 1268ed0c47 ("x86/hyper-v: Fix the circular dependency in IPI enlightenment")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
Cc: devel@linuxdriverproject.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/20180709174012.17429-2-vkuznets@redhat.com
2018-07-16 11:19:48 +02:00
Ulf Hansson
2fb166e50e Merge branch 'next_pxa_dma' into next 2018-07-16 11:17:40 +02:00
Neil Armstrong
3273fc63e1 drm/meson: Make DMT timings parameters and pixel clock generic
Remove the modes timings tables for DMT modes and calculate the HW
paremeters from the modes timings.

Switch the DMT modes pixel clock calculation out of the static frequency
list to a generic calculation from a range of possible PLL dividers.

This patch is an intermediate step towards usage of the Common Clock
Framwework for PLL setup, by reworking the code to have common
sel_pll() function called by the CEA (HDMI) freq setup and the generic
DMT frequencies setup, we should be able to simply call clk_set_rate()
on the PLL clock handle in a near future.

The CEA (HDMI) and CVBS modes needs very specific clock paths that CCF will
never be able to determine by itself, so there is still some work to do for
a full handoff to CCF handling the clocks.

This setup permits setting non-CEA modes like :
- 1600x900-60Hz
- 1280x1024-75Hz
- 1280x1024-60Hz
- 1440x900-60Hz
- 1366x768-60Hz
- 1280x800-60Hz
- 1152x864-75Hz
- 1024x768-75Hz
- 1024x768-70Hz
- 1024x768-60Hz
- 832x624-75Hz
- 800x600-75Hz
- 800x600-72Hz
- 800x600-60Hz
- 640x480-75Hz
- 640x480-73Hz
- 640x480-67Hz

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
[narmstrong: fixed trivial checkpatch issues]
Link: https://patchwork.freedesktop.org/patch/msgid/1531726814-14638-1-git-send-email-narmstrong@baylibre.com
2018-07-16 11:14:59 +02:00
Frank Wunderlich
2ca48895ba arm: dts: mediatek: Fix pio-leds for Bananapi-R2
Pio-leds (near GPIO-Header) are swapped and LOW-active.
This patch restores the expected behaviour.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2018-07-16 11:13:28 +02:00
Michael Straube
65f3264177 staging: rtl8188eu: remove redundant header file
Both functions declared in rtl8188e_led.h are also declared in
rtw_led.h which is included from drv_types.h. Remove rtl8188e_led.h
and it's includes.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:38:19 +02:00
Michael Straube
cfd707e2f7 staging: rtl8188eu: add spaces around '+'
Add spaces around '+' to follow kernel coding style.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:38:19 +02:00
Michael Straube
3cedbfb851 staging: rtl8188eu: rename variable
Rename variable to avoid CamelCase.
tmpV16 -> tmpv16

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:38:19 +02:00
Michael Straube
b5a870456f staging: rtl8188eu: rename function parameters
Rename function parameters to avoid CamelCase.
bWrite -> write
PwrState -> pwrstate

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:38:19 +02:00
Michael Straube
c7279e34cb staging: rtl8188eu: rename Efuse_PowerSwitch
Rename function to avoid CamelCase.
Efuse_PowerSwitch -> efuse_power_switch

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:38:19 +02:00
Michael Straube
8c6ade2e0c staging: rtl8188eu: do not line break function definition
Do not line break function definition of Efuse_PowerSwitch().

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:38:19 +02:00
Oliver Hübers
7d6bc56932 staging: mt7621: Add SPDX license identifier
Signed-off-by: Oliver Hübers <oliver.huebers@web.de>
Signed-off-by: Vanessa Borgmann <nessa.x@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:35:59 +02:00
Michael Straube
884d5ba53f staging: rtl8188eu: remove is_{multicast,broadcast}_mac_addr
Remove custom is_multicast_mac_addr() and is_broadcast_mac_addr().
Use is_multicast_ether_addr() instead.

By definition the broadcast address is also a multicast address.
is_multicast_ether_addr() returns true for broadcast addresses.
Hence checking for multicast in the conditional is sufficient.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:35:59 +02:00
Rafael J. Wysocki
16c5b08572 Merge back ACPICA material for v4.19. 2018-07-16 10:21:35 +02:00
Oliver Hübers
bb4e1ca9b2 staging: mt7621-pci: Include preferred headers
This fixes the following checkpatch warnings:
Use #include <linux/pci.h> instead of <asm/pci.h>
Use #include <linux/io.h> instead of <asm/io.h>

Signed-off-by: Oliver Hübers <oliver.huebers@web.de>
Signed-off-by: Vanessa Borgmann <nessa.x@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:19:14 +02:00
Cristian Kubis
9b59883c14 staging: olpc_dcon: add missing identifier names
Add missing function argument identifier names as suggested by
checkpatch.pl.

Signed-off-by: Cristian Kubis <cristian.kubis@tsunix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:19:14 +02:00
Cristian Kubis
0b37913150 staging: olpc_dcon: prefer 'help' in KConfig
Fix for a style warning reported by checkpatch.pl in KConfig
suggesting to use 'help' instead of '---help---'.

Signed-off-by: Cristian Kubis <cristian.kubis@tsunix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:19:14 +02:00
Ivan Safonov
515ce733e8 staging:r8188eu: Use lib80211 to encrypt (CCMP) tx frames
Put data to skb, decrypt with lib80211_crypt_ccmp, and place back to tx buffer.

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:19:14 +02:00
Ivan Safonov
0d4876f4e9 staging:r8188eu: Use lib80211 to encrypt (TKIP) tx frames
Put data to skb, decrypt with lib80211_crypt_tkip, and place back to tx buffer.

MIC calculation will be replaced later.

Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:19:14 +02:00
Thierry Reding
b59fb482b5 drm/nouveau: tegra: Detach from ARM DMA/IOMMU mapping
Depending on the kernel configuration, early ARM architecture setup code
may have attached the GPU to a DMA/IOMMU mapping that transparently uses
the IOMMU to back the DMA API. Tegra requires special handling for IOMMU
backed buffers (a special bit in the GPU's MMU page tables indicates the
memory path to take: via the SMMU or directly to the memory controller).
Transparently backing DMA memory with an IOMMU prevents Nouveau from
properly handling such memory accesses and causes memory access faults.

As a side-note: buffers other than those allocated in instance memory
don't need to be physically contiguous from the GPU's perspective since
the GPU can map them into contiguous buffers using its own MMU. Mapping
these buffers through the IOMMU is unnecessary and will even lead to
performance degradation because of the additional translation. One
exception to this are compressible buffers which need large pages. In
order to enable these large pages, multiple small pages will have to be
combined into one large (I/O virtually contiguous) mapping via the
IOMMU. However, that is a topic outside the scope of this fix and isn't
currently supported. An implementation will want to explicitly create
these large pages in the Nouveau driver, so detaching from a DMA/IOMMU
mapping would still be required.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:36 +10:00
Thierry Reding
1874619a7d ARM: dma-mapping: Set proper DMA ops in arm_iommu_detach_device()
Instead of setting the DMA ops pointer to NULL, set the correct,
non-IOMMU ops depending on the device's coherency setting.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:36 +10:00
Kees Cook
0d46690155 drm/nouveau/secboot/acr: Remove VLA usage
In the quest to remove all stack VLA usage from the kernel[1], this
allocates the working buffers before starting the writing so it won't
abort in the middle. This needs an initial walk of the lists to figure
out how large the buffer should be.

[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:30 +10:00
Thomas Zimmermann
94a0b8634f drm/nouveau: Replace drm_dev_unref with drm_dev_put
This patch unifies the naming of DRM functions for reference counting
of struct drm_device. The resulting code is more aligned with the rest
of the Linux kernel interfaces.

Signed-off-by: Thomas Zimmermann <tdz@users.sourceforge.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:30 +10:00
Thomas Zimmermann
743e0f079a drm/nouveau: Replace drm_gem_object_unreference_unlocked with put function
This patch unifies the naming of DRM functions for reference counting
of struct drm_gem_object. The resulting code is more aligned with the
rest of the Linux kernel interfaces.

Signed-off-by: Thomas Zimmermann <tdz@users.sourceforge.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Thomas Zimmermann
f066f79507 drm/nouveau: Replace drm_framebuffer_{un/reference} with put, get functions
This patch unifies the naming of DRM functions for reference counting
of struct drm_framebuffer. The resulting code is more aligned with the
rest of the Linux kernel interfaces.

Signed-off-by: Thomas Zimmermann <tdz@users.sourceforge.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Nick Desaulniers
c9fb2cc84c drm/nouveau/nvif: remove const attribute from nvif_mclass
Similar to commit 0bf8bf50ed ("module: Remove
const attribute from alias for MODULE_DEVICE_TABLE")

Fixes many -Wduplicate-decl-specifier warnings due to the combination of
const typeof() of already const variables.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Dan Carpenter
da71f0efe7 drm/nouveau/hwmon: potential uninitialized variables
Smatch complains that "value" can be uninitialized when kstrtol()
returns -ERANGE.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Lyude Paul
922a8c82fa drm/nouveau: Fix runtime PM leak in drm_open()
Noticed this as I was skimming through, if we fail to allocate memory
for cli we'll end up returning without dropping the runtime PM ref we
got. Additionally, we'll even return the wrong return code! (ret most
likely will == 0 here, we want -ENOMEM).

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Karol Herbst
eaeb9010bb drm/nouveau/debugfs: Wake up GPU before doing any reclocking
Fixes various reclocking related issues on prime systems.

Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Karol Herbst
f706037c4e drm/nouveau/bios/vpstate: There are some fermi vbios with no boost or tdp entry
If the entry size is too small, default to invalid values for both
boost_id and tdp_id, so as to default to the base clock in both cases.

Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Mario Kleiner
2ae4c5f6ff drm/nouveau/kms/nv50-: Allow vblank_disable_immediate
With instantaneous high precision vblank timestamping
that updates at leading edge of vblank, the emulated
"hw vblank counter" from vblank timestamping, which
increments at leading edge of vblank, and reliable
page flip execution and completion at leading edge of
vblank, we should meet the requirements for fast/
immediate vblank irq disable/enable.

This is only allowed on nv50+ gpu's, ie. the ones with
atomic modesetting. One requirement for immediate vblank
disable is that high precision vblank timestamping works
reliably all the time on all connectors. This is not the
case on all pre-nv50 parts for analog VGA outputs, where we
currently don't always have support for scanout position
queries and therefore fall back to vblank interrupt
timestamping. The implementation in nv04_head_state() does
not return valid values for vblanks, vtotal, hblanks, htotal
for VGA outputs on all cards, but those are needed for scanout
position queries.

Testing on Linux-4.12-rc5 + drm-next on a GeForce 9500 GT
(NV G96) with timing measurement equipment indicates this
works fine, so allow immediate vblank disable for power
saving.

For debugging in case of unexpected trouble, booting
with kernel cmdline option drm.vblankoffdelay=0
(or echo 0 > /sys/module/drm/parameters/vblankoffdelay)
would keep vblank irqs permanently on to approximate old
behavior.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Ben Skeggs
6ec7aecf1f drm/nouveau/kms/nv50-: remove duplicate assignment
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
kbuild test robot
01981aeb47 drm/nouveau/kms/nv50-: fix drm-get-put.cocci warnings
Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference() and
 drm_*_unreference() helpers.

Generated by: scripts/coccinelle/api/drm-get-put.cocci

Fixes: 30ed49b55b ("drm/nouveau/kms/nv50-: move code underneath dispnv50/")
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Ben Skeggs
7a26c92367 drm/nouveau/disp/nv50-gp10x: fix coverity warning
Change values to u32, there's no need for them to be 64-bit.

Reported-by: Colin Ian King <colin.king@canonical.com>
Suggested-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Ben Skeggs
f7fbbf2cca drm/nouveau/core: ERR_PTR vs NULL bug in nvkm_engine_info()
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Jérôme Glisse
f0fffeeb14 drm/nouveau/mmu/gp10b: remove ghost file
This ghost file have been haunting us.

Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Nicolas Chauvet
3c9f27eeed drm/nouveau/secboot/tegra: Enable gp20b/gp10b firmware tag when relevant
This allows to have the related MODULE_FIRMWARE tag only
on relevant arch (arm64).
This will saves about 400k on initramfs when not relevant

Signed-off-by: Nicolas Chauvet <kwizart@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:29 +10:00
Ben Skeggs
60cda66572 drm/nouveau/fault/gv100: fix fault buffer initialisation
Not sure how this happened, it worked last time I tested it!

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:28 +10:00
Ben Skeggs
bdf4424dc3 drm/nouveau/gr/gv100: handle multiple SM-per-TPC for shader exceptions
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:28 +10:00
Samuel Thibault
b96fba8d58 staging: speakup: fix wraparound in uaccess length check
If softsynthx_read() is called with `count < 3`, `count - 3` wraps, causing
the loop to copy as much data as available to the provided buffer. If
softsynthx_read() is invoked through sys_splice(), this causes an
unbounded kernel write; but even when userspace just reads from it
normally, a small size could cause userspace crashes.

Fixes: 425e586cf9 ("speakup: add unicode variant of /dev/softsynth")
Cc: stable@vger.kernel.org
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:04:11 +02:00
Sergio Paracuellos
eb37430d40 staging: ks7010: call 'hostif_mib_set_request_int' instead of 'hostif_mib_set_request_bool'
'hostif_mib_set_request_bool' function receives a bool as value and
send the received value with MIB_VALUE_TYPE_BOOL type. There is
one case where the value passed is not a boolean one but
'MCAST_FILTER_PROMISC' which is '2'. Call hostif_mib_set_request_int
instead for related multicast enumeration. This changes original
code behaviour but seems to be the right way to do this.

Fixes: 8ce76bff0e ("staging: ks7010: add new helpers to achieve mib set request and simplify code")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-16 10:04:11 +02:00