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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode loading update from Peter Anvin:
"This patchset lets us update the CPU microcode very, very early in
initialization if the BIOS fails to do so (never happens, right?)
This is handy for dealing with things like the Atom erratum where we
have to run without PSE because microcode loading happens too late.
As I mentioned in the x86/mm push request it depends on that
infrastructure but it is otherwise a standalone feature."
* 'x86/microcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/Kconfig: Make early microcode loading a configuration feature
x86/mm/init.c: Copy ucode from initrd image to kernel memory
x86/head64.c: Early update ucode in 64-bit
x86/head_32.S: Early update ucode in 32-bit
x86/microcode_intel_early.c: Early update ucode on Intel's CPU
x86/tlbflush.h: Define __native_flush_tlb_global_irq_disabled()
x86/microcode_intel_lib.c: Early update ucode on Intel's CPU
x86/microcode_core_early.c: Define interfaces for early loading ucode
x86/common.c: load ucode in 64 bit or show loading ucode info in 32 bit on AP
x86/common.c: Make have_cpuid_p() a global function
x86/microcode_intel.h: Define functions and macros for early loading ucode
x86, doc: Documentation for early microcode loading
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With commit 8170e6bed465 ("x86, 64bit: Use a #PF handler to materialize
early mappings on demand") we started hitting an early bootup crash
where the Xen hypervisor would inform us that:
(XEN) d7:v0: unhandled page fault (ec=0000)
(XEN) Pagetable walk from ffffea000005b2d0:
(XEN) L4[0x1d4] = 0000000000000000 ffffffffffffffff
(XEN) domain_crash_sync called from entry.S
(XEN) Domain 7 (vcpu#0) crashed on cpu#3:
(XEN) ----[ Xen-4.2.0 x86_64 debug=n Not tainted ]----
.. that Xen was unable to context switch back to dom0.
Looking at the calling stack we find:
[<ffffffff8103feba>] xen_get_user_pgd+0x5a <--
[<ffffffff8103feba>] xen_get_user_pgd+0x5a
[<ffffffff81042d27>] xen_write_cr3+0x77
[<ffffffff81ad2d21>] init_mem_mapping+0x1f9
[<ffffffff81ac293f>] setup_arch+0x742
[<ffffffff81666d71>] printk+0x48
We are trying to figure out whether we need to up-date the user PGD as
well. Please keep in mind that under 64-bit PV guests we have a limited
amount of rings: 0 for the Hypervisor, and 1 for both the Linux kernel
and user-space. As such the Linux pvops'fied version of write_cr3
checks if it has to update the user-space cr3 as well.
That clearly is not needed during early bootup. The recent changes (see
above git commit) streamline the x86 page table allocation to be much
simpler (And also incidentally the #PF handler ends up in spirit being
similar to how the Xen toolstack sets up the initial page-tables).
The fix is to have an early-bootup version of cr3 that just loads the
kernel %cr3. The later version - which also handles user-page
modifications will be used after the initial page tables have been
setup.
[ hpa: removed a redundant #ifdef and made the new function __init.
Also note that x86-32 already has such an early xen_write_cr3. ]
Tested-by: "H. Peter Anvin" <hpa@zytor.com>
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Link: http://lkml.kernel.org/r/1361579812-23709-1-git-send-email-konrad.wilk@oracle.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* acpi-cleanup:
ACPI / APEI: Fix crash in apei_hest_parse() for acpi=off
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* pm-cpufreq:
imx6q-cpufreq: fix return value check in imx6q_cpufreq_probe()
PM / OPP: fix condition for empty of_init_opp_table()
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* pm-cpuidle:
microblaze idle: Fix compile error
blackfin idle: Fix compile error
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In case of error, the function devm_regulator_get() returns
ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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randconfig build reports the following error which is caused by
CONFIG_PM_OPP being unset.
CC arch/arm/mach-imx/mach-imx6q.o
arch/arm/mach-imx/mach-imx6q.c: In function ‘imx6q_opp_init’:
arch/arm/mach-imx/mach-imx6q.c:248:2: error: implicit declaration of function ‘of_init_opp_table’ [-Werror=implicit-function-declaration]
Fix the error by giving a more correct condition for empty
of_init_opp_table() implementation.
Reported-by: Rob Herring <robherring2@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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After commit 92ef2a2 (ACPI: Change the ordering of PCI root bridge
driver registrarion), acpi_hest_init() is never called for acpi=off
(acpi_disabled), so hest_disable is not set, but hest_tab is NULL,
which causes apei_hest_parse() to crash when it is called from
aer_acpi_firmware_first().
Fix that by making apei_hest_parse() check if hest_tab is not NULL
in addition to checking hest_disable. Also remove the now useless
acpi_disabled check from apei_hest_parse().
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Commit def8203 ("microblaze idle: delete pm_idle") introduced the following
compile error:
arch/microblaze/kernel/process.c: In function 'cpu_idle':
arch/microblaze/kernel/process.c:100: error: 'idle' undeclared (first use in this function)
arch/microblaze/kernel/process.c:100: error: (Each undeclared identifier is reported only once
arch/microblaze/kernel/process.c:100: error: for each function it appears in.)
arch/microblaze/kernel/process.c:106: error: implicit declaration of function 'idle'
This patch fixes it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Commit 26bab0c ("blackfin idle: delete pm_idle") introduced the following
compile error:
arch/blackfin/kernel/process.c: In function ‘cpu_idle’:
arch/blackfin/kernel/process.c:83: error: ‘idle’ undeclared (first use in this function)
arch/blackfin/kernel/process.c:83: error: (Each undeclared identifier is reported only once
arch/blackfin/kernel/process.c:83: error: for each function it appears in.)
arch/blackfin/kernel/process.c:88: error: implicit declaration of function ‘idle’
This patch fixes it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Update the ia64 hugetlb_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.
Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Update the ia64 arch_get_unmapped_area function to make use of
vm_unmapped_area() instead of implementing a brute force search.
Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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The code requires the use of the proper per-exception-vector stub
functions (set up as the early_idt_handlers[] array - note the 's') that
make sure to set up the error vector number. This is true regardless of
whether CONFIG_EARLY_PRINTK is set or not.
Why? The stack offset for the comparison of __KERNEL_CS won't be right
otherwise, nor will the new check (from commit 8170e6bed465: "x86,
64bit: Use a #PF handler to materialize early mappings on demand") for
the page fault exception vector.
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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ext4_has_free_clusters() should tell us whether there is enough free
clusters to allocate, however number of free clusters in the file system
is converted to blocks using EXT4_C2B() which is not only wrong use of
the macro (we should have used EXT4_NUM_B2C) but it's also completely
wrong concept since everything else is in cluster units.
Moreover when calculating number of root clusters we should be using
macro EXT4_NUM_B2C() instead of EXT4_B2C() otherwise the result might be
off by one. However r_blocks_count should always be a multiple of the
cluster ratio so doing a plain bit shift should be enough here. We
avoid using EXT4_B2C() because it's confusing.
As a result of the first problem number of free clusters is much bigger
than it should have been and ext4_has_free_clusters() would return 1 even
if there is really not enough free clusters available.
Fix this by removing the EXT4_C2B() conversion of free clusters and
using bit shift when calculating number of root clusters. This bug
affects number of xfstests tests covering file system ENOSPC situation
handling. With this patch most of the ENOSPC problems with bigalloc file
system disappear, especially the errors caused by delayed allocation not
having enough space when the actual allocation is finally requested.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
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len is 0 means no extent needs to be removed, so return immediately.
Otherwise it could trigger the following BUG_ON() in
ext4_es_remove_extent()
end = lblk + len - 1;
BUG_ON(end < lblk);
This could be reproduced by a simple truncate(1) command by an
unprivileged user
truncate -s $(($((2**32 - 1)) * 4096)) /mnt/ext4/testfile
The same is true for __es_insert_extent().
Patched kernel passed xfstests regression test.
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
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In fast open the sender unncessarily reduces the space available
for data in SYN by 12 bytes. This is because in the sender
incorrectly reserves space for TS option twice in tcp_send_syn_data():
tcp_mtu_to_mss() already accounts for TS option space. But it further
reserves MAX_TCP_OPTION_SPACE when computing the payload space.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The mem cgroup socket limit is only used if the config option is
enabled. Found with sparse
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Dave Jones reported a lockdep splat occurring in IP defrag code.
commit 6d7b857d541ecd1d (net: use lib/percpu_counter API for
fragmentation mem accounting) added a possible deadlock.
Because percpu_counter_sum_positive() needs to acquire
a lock that can be used from softirq, we need to disable BH
in sum_frag_mem_limit()
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 7f7d6c282 (net: fec: Ensure that initialization is done prior to
request_irq()) placed fec_ptp_init() into a point that ptp clock was not
available, which causes a division by zero in fec_ptp_start_cyclecounter():
[ 17.895723] Division by zero in kernel.
[ 17.899571] Backtrace:
[ 17.902094] [<80012564>] (dump_backtrace+0x0/0x10c) from [<8056deec>]
(dump_stack+0x18/0x1c)
[ 17.910539] r6:bfba8500 r5:8075c950 r4:bfba8000 r3:bfbd0000
[ 17.916284] [<8056ded4>] (dump_stack+0x0/0x1c) from [<80012688>]
(__div0+0x18/0x20)
[ 17.923968] [<80012670>] (__div0+0x0/0x20) from [<802829c4>] (Ldiv0+0x8/0x10)
[ 17.931140] [<80398534>] (fec_ptp_start_cyclecounter+0x0/0x110) from
[<80394f64>] (fec_restart+0x6c8/0x754)
[ 17.940898] [<8039489c>] (fec_restart+0x0/0x754) from [<803969a0>]
(fec_enet_adjust_link+0xdc/0x108)
[ 17.950046] [<803968c4>] (fec_enet_adjust_link+0x0/0x108) from [<80390bc4>]
(phy_state_machine+0x178/0x534)
...
Fix this by rearraging the code so that fec_ptp_init() is called only after
the clocks have been properly acquired.
Tested on both mx53 and mx6 platforms.
Reported-by: Jim Baxter <jim_baxter@mentor.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Smatch found a locking bug in netif_set_xps_queue in which we were not
releasing the lock in the case of an allocation failure.
This change corrects that so that we release the xps_map_mutex before
returning -ENOMEM in the case of an allocation failure.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now we handle icmp errors in each transport protocol's err_handler,
for icmp protocols, that is ping_err. Since this handler only care
of those icmp errors triggered by echo request, errors triggered
by echo reply(which sent by kernel) are sliently ignored.
So wrap ping_err() with icmp_err() to deal with those icmp errors.
Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the missing unlock before return from function brcmf_notify_vif_event()
in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Unload sequence for mwifiex PCIE driver is as follows:
1. Invoking cleanup module from kernel results into
pci_unregister_driver
2. Kernel invokes PCIE remove() handler which disconnects all
interfaces.
3. One step during disconnect is to clean PCIE TX rings.
During this we read txbd_rdptr from FW.
While loading driver next time, we see pci_enable_device()
results into system freeze. This may have happened because we
accessed PCI device after unregistering from bus driver.
Removing this ioread() operation resolves this bug.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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If the system suspends with mwifiex wifi powered on, and is then woken
by an ICMP ping packet, the ping response is discarded by the kernel
because the kernel incorrectly thinks there is no carrier.
I can't see any valid reason to want to report loss of carrier here,
so remove the offending code.
Fixes http://dev.laptop.org/ticket/12554
Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Originally submitted by Clark Williams as part of a cleanup,
but happens also to fix an ia64 build problem:
arch/ia64/kernel/init_task.c:38: error: 'RR_TIMESLICE' undeclared here (not in a function)
Signed-off-by: Clark Williams <clark.williams@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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This patch fix the clock device irq field which is not initialized.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linaro-kernel@lists.linaro.org
Cc: patches@linaro.org
Cc: linus.walleij@stericsson.com
Cc: john.stultz@linaro.org
Link: http://lkml.kernel.org/r/1361547870-32638-1-git-send-email-daniel.lezcano@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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An architecture should not unconditionally enable 'GENERIC_GPIO'
without providing an implementation. In case of arm64, selecting
ARCH_WANT_OPTIONAL_GPIOLIB is the right solution, because it
lets us enable GPIOLIB when configuring the kernel, and that
implicitly turns on GENERIC_GPIO.
Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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This reverts
commit 8ec22b214d76773c9d89f4040505ce10f677ed9a
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri May 11 18:01:34 2012 +0100
drm/i915/hdmi: Query the live connector status bit for G4x
and
commit b0ea7d37a8f63eeec5ae80b4a6403cfba01da02f
Author: Damien Lespiau <damien.lespiau@intel.com>
Date: Thu Dec 13 16:09:00 2012 +0000
drm/i915/hdmi: Read the HPD status before trying to read the EDID
They reliably cause HDMI to not be detected on some systems (like my
ivb or the bug reporters gm45). To fix up the very slow unplug issues
we might want to fire up a 2nd detect cycle a few hundred ms after
each hotplug. But for now at least make displays work again.
I somewhat suspect that this is confined to HDMI connectors, since all
the machines I have with DP+ outputs work correctly.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=52361
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org.kernel.org # for 8ec22b21
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This fixes an ia64 build bug reported by Tony Luck.
Reported-by: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Clark Williams <clark.williams@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1361373550-4011-2-git-send-email-clark.williams@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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On systems with 4096 cores attemping to read /proc/sched_debug
fails because we are trying to push all the data into a single
kmalloc buffer.
The issue is on these very large machines all the data will not
fit in 4mb.
A better solution is to not us the single_open mechanism but to
provide our own seq_operations and treat each cpu as an
individual record.
The output should be identical to the previous version.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>)
[ Whitespace fixlet]
[ Fix spello in comment]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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On systems with 4096 cores doing a cat /proc/sched_stat fails,
because we are trying to push all the data into a single kmalloc
buffer.
The issue is on these very large machines all the data will not
fit in 4mb.
A better solution is to not use the single_open() mechanism but
to provide our own seq_operations.
The output should be identical to previous version and thus not
need the version number.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wu Fengguang <fengguang.wu@intel.com>
[ Fix memleak]
[ Fix spello in comment]
[ Fix warnings]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Reuse the "SG unaligned for FMR" driver flow to make the initiator
functional when running over driver instance which doesn't support
FMRs, such as a mlx4 virtual function.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Alex Tabachnik <alext@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Under IO/CPU stress its possible that the FMR pool might not have a
free FMR mapping element for iSER to use because of incomplete
background unmapping processing. In that case we get -EAGAIN and the
IO is pushed back to the SCSI layer which soon retries it. No need to
be so verbose about that.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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ISER_DEF_CMD_PER_LUN was meant to be ISCSI_DEF_XMIT_CMDS_MAX, not plain 128
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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This list is most useful to inspect whether framebuffer reference
counting works as expected. The code is loosely based on the i915
implementation.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
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bpp stores the number of bytes per pixel, but color expansion needs to
be enabled for less than 24 bits per pixel.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
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The Tegra TRM says that the ACT_REQ and UPDATE fields cannot be
programmed at the same time so they are updated in two consecutive
writes instead.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
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All the necessary support bits like .mode_set_base() and VBLANK are now
available, so page-flipping case easily be implemented on top.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
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Implement support for the VBLANK IOCTL. Note that Tegra is somewhat
special in this case because it doesn't use the generic IRQ support
provided by the DRM core (DRIVER_HAVE_IRQ) but rather registers one
interrupt handler for each display controller.
While at it, clean up the way that interrupts are enabled to ensure
that the VBLANK interrupt only gets enabled when required.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
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The sequence for replacing the scanout buffer is much shorter than a
full mode change operation so implementing this callback considerably
speeds up cases where only a new framebuffer is to be scanned out.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
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Add support for the B and C planes which support RGB and YUV pixel
formats and can be used as overlays or hardware cursor. Currently 32-bit
XRGB as well as UYVY, YUV420 and YUV422 pixel formats are advertised.
Other formats should be easy to add but these are the most common ones
and should cover the majority of use-cases.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
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Tegra uses the CMA FB helpers so framebuffers passed to the driver need
to use the corresponding functions to access the underlying GEM objects.
This used to work because struct tegra_framebuffer was sufficiently
similar to struct drm_fb_cma but that isn't guaranteed to stay that way.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
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Driver implementations of the drm_crtc's .page_flip() function are
required to update the crtc->fb field on success to reflect that the new
framebuffer is now in use. This is important to keep reference counting
on the framebuffers balanced.
While at it, document this requirement to keep others from falling into
the same trap.
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Use the generic HDMI infoframe helpers to get rid of the duplicate
implementation in the radeon driver.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Use the generic HDMI infoframe helpers to get rid of the NVIDIA Tegra
reimplementation.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Add a reference section about the EDID helper functions to the DRM
documentation.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Add a generic helper to fill in an HDMI AVI infoframe with data
extracted from a DRM display mode.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Add generic helpers to pack HDMI infoframes into binary buffers.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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The drm_file and drm_clip_rect structures are used throughout the file
but they are never declared nor pulled in through an include. Add
forward declarations to make them available.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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The modes are only used from within drm_edid.c so we move them there to
avoid creating duplicates by multiple inclusion of drm_edid_modes.h. As
a side-effect we can also get rid of a few variables that keep track of
the number of entries in the tables and use ARRAY_SIZE() instead.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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