28 Mar, 2019
1 commit
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The check on !sp_tsk0 is unnecessary in ipu_task_thread(), because the
beforehand "list_del(&sp_tsk0->node);" within the context implies sp_tsk0
is not null, otherwise, we'll dereference a null pointer earlier.Detected by CoverityScan, CID#17842 ("Logically dead code")
Signed-off-by: Liu Ying
(cherry picked from commit 9ad5edd076d61bc8bb3a558e523cc7b31f2c3043)
27 Mar, 2019
8 commits
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Because we are re-initializing the proxy at close it might
happen that work is still pending which causes the following crash:[ 94.699835] Unable to handle kernel NULL pointer dereference at virtual address 00000008
[ 94.707923] Mem abort info:
[ 94.710722] Exception class = DABT (current EL), IL = 32 bits
[ 94.716637] SET = 0, FnV = 0
[ 94.719686] EA = 0, S1PTW = 0
[ 94.722822] Data abort info:
[ 94.725698] ISV = 0, ISS = 0x00000005
[ 94.729530] CM = 0, WnR = 0
[ 94.732504] user pgtable: 4k pages, 48-bit VAs, pgd = ffff8008d9ba3000
[ 94.739035] [0000000000000008] *pgd=0000000938419003, *pud=0000000000000000
[ 94.746015] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[ 94.751589] Modules linked in:
[ 94.754652] CPU: 0 PID: 2068 Comm: kworker/0:2 Not tainted 4.14.98-dirty #75
[ 94.761700] Hardware name: Freescale i.MX8QM MEK (DT)
[ 94.766768] task: ffff8008f23ae200 task.stack: ffff000014378000
[ 94.772705] PC is at process_one_work+0x34/0x414
[ 94.777325] LR is at process_one_work+0x1e0/0x414In order to fix this, we make sure that no work is pending before starting
the re-initialization.Signed-off-by: Daniel Baluta
Reviewed-by: Shengjiu Wang
(cherry picked from commit 2c00c24be5f8b63636e3f9005e15a3de42058438) -
Double check that the DTG IRQ STATUS register bit is set when handling
the vblank and CTXLD kick interrupts to make sure we avoid spurious
interrupts and kick the CTXLD in a bad moment.Signed-off-by: Laurentiu Palcu
Reviewed-by: Robert Chiras
(cherry picked from commit cc56e4e07f623d0b831e0f8347f2f3198697ee20) -
Using one completion variable is not feasible as we can hit corner cases like
enabling and then quickly disabling DCSS where we end up signaling that DTG was
correctly disabled when, in fact, a VBLANK interrupt was received.Signed-off-by: Laurentiu Palcu
Reviewed-by: Robert Chiras
(cherry picked from commit 8073e87dce34548bea758c34d3b3557819c75551) -
Currently, we set the colorimetry to BT.2020 even if the color-depth is
8 bit. This is not according to HDMI specification.This patch makes sure we follow the specs.
Signed-off-by: Laurentiu Palcu
CC: Sandor Yu
Reviewed-by: Sandor Yu
Reviewed-by: Robert Chiras
(cherry picked from commit cdacfaadd5dccfdca5dd68640d8f08506f6a9114) -
A fixed PLL PMS setting for attached panel is obviously not
enough for any other mipi panel which needs a different PLL
output clock frequency, and besides, for the CEA-861 standard
display modes, the 'pll_pms' table also can not cover all the
modes requirements. So a general way is created to solve this
problem which can provide an optimum solution to output a PLL
bit clock to match the request frequency in a maximum degree
and also satisfy the input clock and intermediate clocks limit
according to the PLL specification.Signed-off-by: Fancy Fang
(cherry picked from commit a73fdd5e48fe0df47685cfc197fe66edc1e28405) -
Add a new property 'pref-rate' support which can be used to
assign a different clock frequency for the DPHY PLL reference
clock in the dtb file. And if this property does not exist,
the default clock frequency for the reference clock will be
used. And according to the spec, the DPHY PLL reference clk
frequency should be in [6MHz, 300MHz] range.Signed-off-by: Fancy Fang
(cherry picked from commit a9fafe8108505f8a1580af898ff5fa9c26d03680) -
When there is no existing horizontal blanking word counts in
'dsim_hblank_par' tables, these data requires to be computed
according to the 'hfp', 'hbp' and 'hsa' timings which are in
pixel unit. So the pixel unit data requires to be converted
to word count unit data correctly to match the PLL output clk
frequency.Signed-off-by: Fancy Fang
(cherry picked from commit af9ab0d4362d9298978e2ac62033f65ea1cc09ed) -
Change the 'bit_clk' and 'pix_clk' fields of struct sec_mipi_dsim
and the 'bit_clk' field of struct dsim_pll_pms from 'uint64_t' type
to 'uint32_t' type, since first, these two fields are in KHz unit,
and so 32 bit unsigned integer is enough to hold the data values,
and second, use 32 bit integer can simplify related clocks compute.Signed-off-by: Fancy Fang
(cherry picked from commit 3e62c748a531ca5eacbf6a616d3a979be5222b9c)
25 Mar, 2019
1 commit
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Since, the partition reset irq would be triggered anytime.
Do not read the status of the MU if master side is in suspend mode.Signed-off-by: Richard Zhu
(cherry picked from commit 117dbcb1ce258587f8d162c0b3219f32d6de6fbc)
24 Mar, 2019
7 commits
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Coverity reported potential arithmetic overflow of a 32-bit
multiply operation. Adding a cast to promote the mulitply opertion to use
64 bits.Signed-off-by: Oliver Brown
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Coverity reported a potential divide by zero. Adding a check to prevent
a divide by zero.Signed-off-by: Oliver Brown
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Fixed a dead code error reported by Coverity.
CID 1826265: Logically dead codeSigned-off-by: Oliver Brown
(cherry picked from commit 4b25b038a2278b0782e144ec3e3907fbcbc138c1) -
Fixed two issues resported by Coverity:
CID 343354: Uninitialized scalar variable
CID 343355: Uninitialized scalar variableSigned-off-by: Oliver Brown
(cherry picked from commit abc359e835dca5942d9dc101bfdc55f243e01d65) -
Fixed CID 3411368, Unsigned compared against 0. Removed comparison with
no effect.Signed-off-by: Oliver Brown
(cherry picked from commit 7a90cb82d00109cdd00eea67fbf9d75b6efe6172) -
Fixed CID 17375, Unsigned compared against 0. Removed code with no effect.
Signed-off-by: Oliver Brown
(cherry picked from commit b86debc52acd4131515f62130f52c2d0f48cdbfe) -
Fix Covertity CID 18110 Uninitialized scalar variable
Signed-off-by: Oliver Brown
(cherry picked from commit 0f2a05c5cef95dabdbdd1e78531cd42aec24876a)
23 Mar, 2019
1 commit
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Some rpmsg user may require rpmsg resume before the user start
handle its irq, e.g the typec controller use a GPIO as irq and
use rpmsg to get event status, so move imx rpmsg power management
ops to noirq phrase.Reviewed-by: Richard Zhu
Tested-by: Clark Wang
Signed-off-by: Anson Huang
Signed-off-by: Li Jun
22 Mar, 2019
6 commits
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Changing error message "Link rate is too high - forcing link to lower rate"
to a debug message "Lowering DP link rate from to ".Signed-off-by: Oliver Brown
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Although the hardware spec doesn't mention the additional operation to
wait for FrameGen secondary syncup for non-PC cases(FrameGen non-sync mode)
when we enable a display, it turns out it helps avoid content stream(i.e.,
extdst0 or extdst1) shadow load done event missing issue when the first
page flip ocurrs after the display enablement. Black/blanked display
is observed when the issue happens, which means the video signal is likely
totally off. Adding this waiting operation also aligns to the cases
where PC is used.Signed-off-by: Liu Ying
(cherry picked from commit cfedc1269f35054c79d7fd2e2a914e97a4c1a47a) -
Another coming patch will wait for framegen secondary channel syncup
for non-sync mode cases. It appears that waiting for 50ms for video
modes like 1920x1080p@24 and 1920x1080p@30 is not enough. So, this
patch increases the timeout value to 100ms.Signed-off-by: Liu Ying
(cherry picked from commit 5357bce465db659d69a5026882a899f2077ee078) -
When the interrupt occurs during the USB is entering suspend, the
cdns->lpm flag may not be updated well, the below oops may occur.
We treat above interrupt as wakeup interrupt, it should be handled
after lpm flag is set.irq 120: nobody cared (try booting with the "irqpoll" option)
CPU: 0 PID: 107 Comm: kworker/0:1 Tainted: G O 4.14.78 #1
Hardware name: Freescale i.MX8QM MEK (DT)
Workqueue: pm pm_runtime_work
Call trace:
[] el1_irq+0xb0/0x124
[] _raw_spin_unlock_irqrestore+0x18/0x48
[] __irq_put_desc_unlock+0x1c/0x44
[] enable_irq+0x54/0x90
[] cdns3_enter_suspend+0x30c/0x3ac
[] cdns3_runtime_suspend+0x40/0x78
[] pm_generic_runtime_suspend+0x28/0x48
[] genpd_runtime_suspend+0x90/0x21c
[] __rpm_callback+0x130/0x264
[] rpm_callback+0x24/0x78
[] rpm_suspend+0x10c/0x668
[] rpm_idle+0x1c0/0x390
[] pm_runtime_work+0x94/0xe0
[] process_one_work+0x140/0x3f8
[] worker_thread+0x138/0x3e4
[] kthread+0x104/0x130
[] ret_from_fork+0x10/0x18Signed-off-by: Peter Chen
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Signed-off-by: ming_qian
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Error implement in function CDN_API_DPTX_ForceLanes_blocking,
it should call function CDN_API_DPTX_ForceLanes.Signed-off-by: Sandor Yu
(cherry picked from commit 458736a5adeec6527dc86de5993c7ddec84daa15)
21 Mar, 2019
9 commits
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Add support for suspend and resume operation for PM in CAAM driver.
When the CAAM goes in suspend, the hardware is considered to do nothing.
On some platforms, the power of the CAAM is not turned off so it keeps
its configuration.On other platforms, it doesn't so it is necessary to save the state of
the CAAM:
- JRs MID
- Address of input and output ringsLimitation:
When the CAAM is powered OFF, it is resetted so the JDKEK and TDKEK
changes. This impacts crypto transforms using MDHA split-keys
which are kept over suspend as they are encrypted with the JDKEK:
- hmac(*) from caamhash.c
- authenc(hmac(*),*) from caamalg.c
- echainiv(authenc(hmac(*),*)) from caamalg.c
The issue was already present in current code so this patch does not
add a regression in this regard.Reviewed-by: Horia Geantă
Signed-off-by: Franck LENORMAND
(cherry picked from commit b90e25f285a65ee8c8433aba7fe8b19b2cdf70b9) -
The structure partid is not suitable to represent the DECO MID register.
This patch replace partid by masterid which is more appropriate.
Reviewed-by: Horia Geantă
Signed-off-by: Franck LENORMAND
(cherry picked from commit 49d6d90809cb04ae3a63e7e87f670014ab5da0a1) -
The previous patch create a DMA issue detected with
DMA debug as the size unmapped is not always the size
mapped.Signed-off-by: Franck LENORMAND
(cherry picked from commit 00bd0d58f4d339d0488c4eb102e34e70edd017ee) -
Roland reports the following issue and provides a root cause analysis:
"On a v4.19 i.MX6 system with IMA and CONFIG_DMA_API_DEBUG enabled, a
warning is generated when accessing files on a filesystem for which IMA
measurement is enabled:------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at kernel/dma/debug.c:1181 check_for_stack.part.9+0xd0/0x120
caam_jr 2101000.jr0: DMA-API: device driver maps memory from stack [addr=b668049e]
Modules linked in:
CPU: 0 PID: 1 Comm: switch_root Not tainted 4.19.0-20181214-1 #2
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
Backtrace:
[] (dump_backtrace) from [] (show_stack+0x20/0x24)
[] (show_stack) from [] (dump_stack+0xa0/0xcc)
[] (dump_stack) from [] (__warn+0xf0/0x108)
[] (__warn) from [] (warn_slowpath_fmt+0x58/0x74)
[] (warn_slowpath_fmt) from [] (check_for_stack.part.9+0xd0/0x120)
[] (check_for_stack.part.9) from [] (debug_dma_map_page+0x144/0x174)
[] (debug_dma_map_page) from [] (ahash_final_ctx+0x5b4/0xcf0)
[] (ahash_final_ctx) from [] (ahash_final+0x1c/0x20)
[] (ahash_final) from [] (crypto_ahash_op+0x38/0x80)
[] (crypto_ahash_op) from [] (crypto_ahash_final+0x20/0x24)
[] (crypto_ahash_final) from [] (ima_calc_file_hash+0x29c/0xa40)
[] (ima_calc_file_hash) from [] (ima_collect_measurement+0x1dc/0x240)
[] (ima_collect_measurement) from [] (process_measurement+0x4c4/0x6b8)
[] (process_measurement) from [] (ima_file_check+0x88/0xa4)
[] (ima_file_check) from [] (path_openat+0x5d8/0x1364)
[] (path_openat) from [] (do_filp_open+0x84/0xf0)
[] (do_filp_open) from [] (do_open_execat+0x84/0x1b0)
[] (do_open_execat) from [] (__do_execve_file+0x43c/0x890)
[] (__do_execve_file) from [] (sys_execve+0x44/0x4c)
[] (sys_execve) from [] (ret_fast_syscall+0x0/0x28)
---[ end trace 3455789a10e3aefd ]---The cause is that the struct ahash_request *req is created as a
stack-local variable up in the stack (presumably somewhere in the IMA
implementation), then passed down into the CAAM driver, which tries to
dma_single_map the req->result (indirectly via map_seq_out_ptr_result)
in order to make that buffer available for the CAAM to store the result
of the following hash operation.The calling code doesn't know how req will be used by the CAAM driver,
and there could be other such occurrences where stack memory is passed
down to the CAAM driver. Therefore we should rather fix this issue in
the CAAM driver where the requirements are known."Fix this problem by:
-instructing the crypto engine to write the final hash in state->caam_ctx
-subsequently memcpy-ing the final hash into req->resultReported-by: Roland Hieber
Signed-off-by: Horia Geantă
Signed-off-by: Franck LENORMAND
(cherry picked from commit d8e87d0a42ce7ff9d96c4197c8df4b22e181c780) -
If CONFIG_KASAN enabled, gpu kernel driver will throw out the following error:
drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_command.c: In function ‘gckCOMMAND_Commit’:
rivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_command.c:2646:1: error:
the frame size of 2784 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]Signed-off-by: Xianzhong
(cherry picked from commit d5237ed9bca46858875a9b0ef4134ad477832102) -
This reverts commit ae7756f53980f6d6bde1a72ea0798c5341c764fb.
Root cause identified, the issue of stream mode only happens
on imx8mm DDR4 board, because the DDR QoS setting is not correct.
After the Qos setting change to be default value on imx8mm DDR4
board, we can enable stream mode for USB device mode now.Acked-by: Peter Chen
Signed-off-by: Li Jun
(cherry picked from commit 4dad5065f1088197884de992be9adfed228197d9) -
Fixes: 944c01a889d9 ("spi: lpspi: enable runtime pm for lpspi")
Signed-off-by: kbuild test robot
Signed-off-by: Mark Brown -
set skip firmware bss flag when when driver clear firmware buffer.
If driver didn't clear the buffer, and the flag is set.
Something unexpected may happen.
So clear firmware buffer before download firmware every times.Signed-off-by: ming_qian
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if seq header is not found before user streamoff.
and user streamon again.
the firmware is keeping parsing seq state.
but it don't really parse seq header
because it has been canceled by streamoff.
The firmware needs driver trigger again to start parse next seq.
In this case, driver will send stop cmd to firmware first,
and send start cmd to firmware to restart parse seq header.
And the user need transfer spspps before I frame again.Signed-off-by: ming_qian
20 Mar, 2019
5 commits
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on i.MX8
We need to add property in DTS node before when we want to use normal
mode on i.MX8 platform. Check in RM, we also can use CBT register not
must CTRL1 register to set bitrate for normal mode.This patch intends to use CBT register to set bitrate for normal mode on
i.MX8. After this, we don't need to modify the DTS node to support
normal mode.Signed-off-by: Joakim Zhang
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The alias ID must be defined in device tree, because
that will be used as BUS ID to Cortex M4. If the alias ID
not defined, linux kernel will automatically allocate one
ID which might not be the same number used in Cortex M4 and
Cortex M4 will not send msg to I2C controller.So let's add BUG_ON to catch issue as earlier as possible to avoid
wasting efforts.Signed-off-by: Peng Fan
Reviewed-by: Clark Wang -
Remove the delay waiting, add the sync mechanism during partition reset.
In order to avoid the hang at master side during the rpmsg restore
procedure. Re-initialize the first_notify parameter, when rpmsg master
assumes remote processor is dead.
Otherwise, master side maybe hang during the rpmsg restore procedure
in some corner cases.
~14ms is required by M4 to process the MU message from the cold boot.
Set the max wait of MU_SendMessageTimeout to 20ms.Signed-off-by: Richard Zhu
Reviewed-by: Robin Gong
(cherry picked from commit 6b5573a9c645b947688c171b2dbdb6b70b59356c) -
Clear pending interrupt status of partition reboot during rpmsg
driver probe to avoid to unregister/register virtio device again.Tested-by: Clark Wang
Reviewed-by: Richard Zhu
Signed-off-by: Fugang Duan -
in the former patch, the order of allocate dma buffer will be changed.
if there is no enough memory, some error may occur.
so revert the former change, and add lock for alloc and free dmaSigned-off-by: ming_qian
19 Mar, 2019
1 commit
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Because we add the partition reboot function, and assign all flexcan
pins to M4, A core cannot access flexcan pins for now.LPUART3 uses flexcan pins before, so disable it to avoid this error:
imx8qxp-pinctrl iomuxc: pin_config_set op failed for pin 110Signed-off-by: Clark Wang
18 Mar, 2019
1 commit
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after seek
replace flush_drv_q() with clear_queue()Signed-off-by: Shijie Qin
