There are two variables len within bcm2835_prepare_dma. So rename the
result of dma_map_sg to sg_len. While we are at this add a bail out to
simplify the following change.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
It's better to make sure that the timeout work is really terminated
before calling mmc_request_done.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
There are two accesses on the data requests which are not protected by
the mutex. So fix this accordingly.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If the user issues an "mmc extcsd read", the SD controller receives
what it thinks is a SEND_IF_COND command with an unexpected data block.
The resulting operations leave the FSM stuck in READWAIT, a state which
persists until the MMC framework resets the controller, by which point
the root filesystem is likely to have been unmounted.
A less heavyweight solution is to detect the condition and nudge the
FSM by asserting the (self-clearing) FORCE_DATA_MODE bit.
Link: https://github.com/raspberrypi/linux/issues/2728
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The bcm2835 mmc host tends to lock up for unknown reason so reset it on
timeout. The upper mmc block layer tries retransimitting with single
blocks which tends to work out after a long wait.
This is better than giving up and leaving the machine broken for no
obvious reason.
Fixes: 660fc733bd ("mmc: bcm2835: Add new driver for the sdhost controller.")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Simplify things by making the i.MX SDHCI driver just use
slot GPIO with descriptors instead of passing around the global
GPIO numbers that we want to get rid of.
As it turns out, just one single board is using the platform
data to pass in GPIOs numbers for CD and WP, so we augment this
to use a machine descriptor table instead.
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The power GPIO line is passed with inversion flags and all from
the platform data. Switch to using an optional GPIO descriptor and
use this to switch the power.
Augment the only boardfile to pass in the proper "power" descriptor
in the GPIO descriptor machine table instead.
As the GPIO handling is now much simpler, we can cut down on some
overhead code.
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: linux-mips@linux-mips.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Modifty the JZ4740 driver to retrieve card detect and write
protect GPIO pins from GPIO descriptors instead of hard-coded
global numbers. Augment the only board file using this in the
process and cut down on passed in platform data.
Preserve the code setting the caps2 flags for CD and WP
as active low or high since the slot GPIO code currently
ignores the gpiolib polarity inversion semantice and uses
the raw accessors to read the GPIO lines, but set the right
polarity flags in the descriptor table for jz4740.
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: linux-mips@linux-mips.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The use of string pointers in the MMC slot GPIO context is
pretty dubious, allocating some 2*len extra bytes for each
label of the ro and wp pins.
Tidy this up using kasprintf() with dynamic allocation of
labels for these strings.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
On few SDHCI-MSM controllers, the host controller's clock tuning
circuit may go out of sync if controller clocks are gated which
eventually will result in data CRC, command CRC/timeout errors.
To overcome this h/w limitation, the DLL needs to be re-initialized
and restored with its old settings once clocks are ungated.
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If the host controller supports auto-commands then enable the auto-command
error interrupt and handle it. In the case of auto-CMD23, the error is
treated the same as manual CMD23 error. In the case of auto-CMD12,
commands-during-transfer are not permitted, so the error handling is
treated the same as a data error.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The SDHCI_ACMD12_ERR register is used for auto-CMD23 and auto-CMD12
errors, as is the SDHCI_INT_ACMD12ERR interrupt bit. Rename them to
SDHCI_AUTO_CMD_STATUS and SDHCI_INT_AUTO_CMD_ERR respectively.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Existing data command CRC error handling is non-standard and does not work
with some Intel host controllers. Specifically, the assumption that the host
controller will continue operating normally after the error interrupt,
is not valid. Change the driver to handle the error in the same manner
as a data CRC error, taking care to ensure that the data line reset is
done for single or multi-block transfers, and it is done before
unmapping DMA.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The driver sets an incorrect clock and depends on the clock driver
knowledge of this incorrect setting to still set a 200Mhz SDn clock.
Instead of spreading the workaround between the two drivers the clock
driver should be made aware of the ES versions where the special clock
handling is needed no need to keep this workaround in the SDHI driver.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The reason of including <linux/bitops.h> here is just for BIT() and
GENMASK() macros.
Since commit 8bd9cb51da ("locking/atomics, asm-generic: Move some
macros from <linux/bitops.h> to a new <linux/bits.h> file"),
<linux/bits.h> is enough for such compile-time macros.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The SDHI/MMC controller in the RZ/A2 is almost the same as R-Car gen3, but
with some minor differences.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
On our AT91SAM9260 board we use the same sdio bus for wifi and for the
sd card slot. This caused the atmel-mci to give the following splat on
the serial console:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 538 at drivers/mmc/host/atmel-mci.c:859 atmci_send_command+0x24/0x44
Modules linked in:
CPU: 0 PID: 538 Comm: mmcqd/0 Not tainted 4.14.76 #14
Hardware name: Atmel AT91SAM9
[<c000fccc>] (unwind_backtrace) from [<c000d3dc>] (show_stack+0x10/0x14)
[<c000d3dc>] (show_stack) from [<c0017644>] (__warn+0xd8/0xf4)
[<c0017644>] (__warn) from [<c0017704>] (warn_slowpath_null+0x1c/0x24)
[<c0017704>] (warn_slowpath_null) from [<c033bb9c>] (atmci_send_command+0x24/0x44)
[<c033bb9c>] (atmci_send_command) from [<c033e984>] (atmci_start_request+0x1f4/0x2dc)
[<c033e984>] (atmci_start_request) from [<c033f3b4>] (atmci_request+0xf0/0x164)
[<c033f3b4>] (atmci_request) from [<c0327108>] (mmc_start_request+0x280/0x2d0)
[<c0327108>] (mmc_start_request) from [<c032800c>] (mmc_start_areq+0x230/0x330)
[<c032800c>] (mmc_start_areq) from [<c03366f8>] (mmc_blk_issue_rw_rq+0xc4/0x310)
[<c03366f8>] (mmc_blk_issue_rw_rq) from [<c03372c4>] (mmc_blk_issue_rq+0x118/0x5ac)
[<c03372c4>] (mmc_blk_issue_rq) from [<c033781c>] (mmc_queue_thread+0xc4/0x118)
[<c033781c>] (mmc_queue_thread) from [<c002daf8>] (kthread+0x100/0x118)
[<c002daf8>] (kthread) from [<c000a580>] (ret_from_fork+0x14/0x34)
---[ end trace 594371ddfa284bd6 ]---
This is:
WARN_ON(host->cmd);
This was fixed on our board by letting atmci_request_end determine what
state we are in. Instead of unconditionally setting it to STATE_IDLE on
STATE_END_REQUEST.
Signed-off-by: Jonas Danielsson <jonas@orbital-systems.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit removes the unnecessary of-node check since the
dw_mci_bluefield_match[] structure has only one entry.
Signed-off-by: Liming Sun <lsun@mellanox.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Merge misc fixes from Andrew Morton:
"11 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
scripts/spdxcheck.py: always open files in binary mode
checkstack.pl: fix for aarch64
userfaultfd: check VM_MAYWRITE was set after verifying the uffd is registered
fs/iomap.c: get/put the page in iomap_page_create/release()
hugetlbfs: call VM_BUG_ON_PAGE earlier in free_huge_page()
memblock: annotate memblock_is_reserved() with __init_memblock
psi: fix reference to kernel commandline enable
arch/sh/include/asm/io.h: provide prototypes for PCI I/O mapping in asm/io.h
mm/sparse: add common helper to mark all memblocks present
mm: introduce common STRUCT_PAGE_MAX_SHIFT define
alpha: fix hang caused by the bootmem removal
There is actually a space after "sp," like this,
ffff2000080813c8: a9bb7bfd stp x29, x30, [sp, #-80]!
Right now, checkstack.pl isn't able to print anything on aarch64,
because it won't be able to match the stating objdump line of a function
due to this missing space. Hence, it displays every stack as zero-size.
After this patch, checkpatch.pl is able to match the start of a
function's objdump, and is then able to calculate each function's stack
correctly.
Link: http://lkml.kernel.org/r/20181207195843.38528-1-cai@lca.pw
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
migrate_page_move_mapping() expects pages with private data set to have
a page_count elevated by 1. This is what used to happen for xfs through
the buffer_heads code before the switch to iomap in commit 82cb14175e
("xfs: add support for sub-pagesize writeback without buffer_heads").
Not having the count elevated causes move_pages() to fail on memory
mapped files coming from xfs.
Make iomap compatible with the migrate_page_move_mapping() assumption by
elevating the page count as part of iomap_page_create() and lowering it
in iomap_page_release().
It causes the move_pages() syscall to misbehave on memory mapped files
from xfs. It does not not move any pages, which I suppose is "just" a
perf issue, but it also ends up returning a positive number which is out
of spec for the syscall. Talking to Michal Hocko, it sounds like
returning positive numbers might be a necessary update to move_pages()
anyway though
(https://lkml.kernel.org/r/20181116114955.GJ14706@dhcp22.suse.cz).
I only hit this in tests that verify that move_pages() actually moved
the pages. The test also got confused by the positive return from
move_pages() (it got treated as a success as positive numbers were not
expected and not handled) making it a bit harder to track down what's
going on.
Link: http://lkml.kernel.org/r/20181115184140.1388751-1-pjaroszynski@nvidia.com
Fixes: 82cb14175e ("xfs: add support for sub-pagesize writeback without buffer_heads")
Signed-off-by: Piotr Jaroszynski <pjaroszynski@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Brian Foster <bfoster@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Found warning:
WARNING: EXPORT symbol "gsi_write_channel_scratch" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: vmlinux.o(.text+0x1e0a0): Section mismatch in reference from the function valid_phys_addr_range() to the function .init.text:memblock_is_reserved()
The function valid_phys_addr_range() references
the function __init memblock_is_reserved().
This is often because valid_phys_addr_range lacks a __init
annotation or the annotation of memblock_is_reserved is wrong.
Use __init_memblock instead of __init.
Link: http://lkml.kernel.org/r/BLUPR13MB02893411BF12EACB61888E80DFAE0@BLUPR13MB0289.namprd13.prod.outlook.com
Signed-off-by: Yueyi Li <liyueyi@live.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The conversion of alpha to memblock as the early memory manager caused
boot to hang as described at [1].
The issue is caused because for CONFIG_DISCTONTIGMEM=y case,
memblock_add() is called using memory start PFN that had been rounded
down to the nearest 8Mb and it caused memblock to see more memory that
is actually present in the system.
Besides, memblock allocates memory from high addresses while bootmem was
using low memory, which broke the assumption that early allocations are
always accessible by the hardware.
This patch ensures that memblock_add() is using the correct PFN for the
memory start and forces memblock to use bottom-up allocations.
[1] https://lkml.org/lkml/2018/11/22/1032
Link: http://lkml.kernel.org/r/1543233216-25833-1-git-send-email-rppt@linux.ibm.com
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Meelis Roos <mroos@linux.ee>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull block fixes from Jens Axboe:
"Three small fixes for this week. contains:
- spectre indexing fix for aio (Jeff)
- fix for the previous zeroing bio fix, we don't need it for user
mapped pages, and in fact it breaks some applications if we do
(Keith)
- allocation failure fix for null_blk with zoned (Shin'ichiro)"
* tag 'for-linus-20181214' of git://git.kernel.dk/linux-block:
block: Fix null_blk_zoned creation failure with small number of zones
aio: fix spectre gadget in lookup_ioctx
block/bio: Do not zero user pages
Pull clk fix from Stephen Boyd:
"One fix for the qcom QCS404 clk driver that was merged for this
release.
It specified the wrong parent for a PLL so a part of the clk tree
wasn't rooted correctly. This fixes it by using the right name"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: qcs404: Fix gpll0_out_main parent
Pull arm64 fix from Catalin Marinas:
"Invalidate the caches before clearing the DMA buffer via the
non-cacheable alias in the FORCE_CONTIGUOUS case"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: dma-mapping: Fix FORCE_CONTIGUOUS buffer clearing
Pull powerpc fixes from Michael Ellerman:
"One notable fix for our change to split pt_regs between user/kernel,
we forgot to update BPF to use the user-visible type which was an ABI
break for BPF programs.
A slightly ugly but minimal fix to do_syscall_trace_enter() so that we
use tracehook_report_syscall_entry() properly. We'll rework the code
in next to avoid the empty if body.
Seven commits fixing bugs in the new papr_scm (Storage Class Memory)
driver. The driver was finally able to be tested on the other
hypervisor which exposed several bugs. The fixes are all fairly
minimal at least.
Fix a crash in our MSI code if an MSI-capable device is plugged into a
non-MSI capable PHB, only seen on older hardware (MPC8378).
Fix our legacy serial code to look for "stdout-path" since the device
trees were updated to use that instead of "linux,stdout-path".
A change to the COFF zImage code to fix booting old powermacs.
A couple of minor build fixes.
Thanks to: Benjamin Herrenschmidt, Daniel Axtens, Dmitry V. Levin,
Elvira Khabirova, Oliver O'Halloran, Paul Mackerras, Radu Rendec, Rob
Herring, Sandipan Das"
* tag 'powerpc-4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/ptrace: replace ptrace_report_syscall() with a tracehook call
powerpc/mm: Fallback to RAM if the altmap is unusable
powerpc/papr_scm: Use ibm,unit-guid as the iset cookie
powerpc/papr_scm: Fix DIMM device registration race
powerpc/papr_scm: Remove endian conversions
powerpc/papr_scm: Update DT properties
powerpc/papr_scm: Fix resource end address
powerpc/papr_scm: Use depend instead of select
powerpc/bpf: Fix broken uapi for BPF_PROG_TYPE_PERF_EVENT
powerpc/boot: Fix build failures with -j 1
powerpc: Look for "stdout-path" when setting up legacy consoles
powerpc/msi: Fix NULL pointer access in teardown code
powerpc/mm: Fix linux page tables build with some configs
powerpc: Fix COFF zImage booting on old powermacs
Pull ceph fix from Ilya Dryomov:
"Luis discovered a problem with the new copyfrom offload on the server
side. Disable it for now"
* tag 'ceph-for-4.20-rc7' of https://github.com/ceph/ceph-client:
ceph: make 'nocopyfrom' a default mount option
Pull pin control fixes from Linus Walleij:
"Three pin control fixes for the v4.20 series. Just odd drivers, so
nothing particularly interesting:
- Set the tile property on Qualcomm SDM60.
- Fix up enable register calculation for the Meson
- Fix an IRQ offset on the Sunxi (Allwinner)"
* tag 'pinctrl-v4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sunxi: a83t: Fix IRQ offset typo for PH11
pinctrl: meson: fix pull enable register calculation
pinctrl: sdm660: Set tile property for pingroups
Pull drm fixes from Dave Airlie:
"While I hoped things would calm down, the world hasn't joined with me,
but it's a few things scattered over a wide area. The i915 workarounds
regression fix is probably the largest, the rest are more usual sized.
We also get some new AMD PCI IDs.
There is also a patch in here to MAINTAINERS to added Daniel as an
official DRM toplevel co-maintainer, he's decided he wants to step up
and share the glory, and he'll likely process next weeks fixes while
I'm away on holidays.
Summary:
amdgpu:
- some new PCI IDs
- fixed firmware image updates
- power management fixes
- locking warning fix
nouveau:
- framebuffer flushing fix
- memory leak fix
- tegra device init regression fix
vmwgfx:
- OOM kernel memory fix
- excess return in function fix
i915:
- the biggest fix is a regression fix where workarounds weren't
getting reapplied after a gpu hang causing further crashing, this
fixes the workaround application to make it happen again
- GPU hang fixes for Braswell and some GEN3 GPUs
- GVT fix for broadwell tiling
rockchip:
- revert to fix a regression causing a WARN on shutdown
mediatek:
- avoid crash attaching to non-existant bridges"
* tag 'drm-fixes-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (23 commits)
drm/vmwgfx: Protect from excessive execbuf kernel memory allocations v3
MAINTAINERS: Daniel for drm co-maintainer
drm/amdgpu: drop fclk/gfxclk ratio setting
drm/vmwgfx: remove redundant return ret statement
drm/i915: Flush GPU relocs harder for gen3
drm/i915: Allocate a common scratch page
drm/i915/execlists: Apply a full mb before execution for Braswell
drm/nouveau/kms: Fix memory leak in nv50_mstm_del()
drm/nouveau/kms/nv50-: also flush fb writes when rewinding push buffer
drm/amdgpu: Fix DEBUG_LOCKS_WARN_ON(depth <= 0) in amdgpu_ctx.lock
Revert "drm/rockchip: Allow driver to be shutdown on reboot/kexec"
drm/nouveau/drm/nouveau: tegra: Call nouveau_drm_device_init()
drm/amdgpu/powerplay: Apply avfs cks-off voltages on VI
drm/amdgpu: update SMC firmware image for polaris10 variants
drm/amdkfd: add new vega20 pci id
drm/amdkfd: add new vega10 pci ids
drm/amdgpu: add some additional vega20 pci ids
drm/amdgpu: add some additional vega10 pci ids
drm/amdgpu: update smu firmware images for VI variants (v2)
drm/i915: Introduce per-engine workarounds
...
Pull XArray fixes from Matthew Wilcox:
"Two bugfixes, each with test-suite updates, two improvements to the
test-suite without associated bugs, and one patch adding a missing
API"
* tag 'xarray-4.20-rc7' of git://git.infradead.org/users/willy/linux-dax:
XArray: Fix xa_alloc when id exceeds max
XArray tests: Check iterating over multiorder entries
XArray tests: Handle larger indices more elegantly
XArray: Add xa_cmpxchg_irq and xa_cmpxchg_bh
radix tree: Don't return retry entries from lookup
Pull Kselftest fix from Shuah Khan:
"A single fix for a seccomp test from Kees Cook."
* tag 'linux-kselftest-4.20-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/seccomp: Remove SIGSTOP si_pid check
