Commit graph

1,267,977 commits

Author SHA1 Message Date
Heiner Kallweit
29dae4572e i2c: i801: Add SMBUS_LEN_SENTINEL
Add a sentinel length value that is used to check whether we should
read and use the length value provided by the slave device.
This simplifies the currently used checks.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-02-08 18:06:46 +01:00
Heiner Kallweit
6ff9d46cd3 i2c: i801: Split i801_block_transaction
i2c and smbus block transaction handling have little in common,
therefore split this function to improve code readability.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-02-08 18:06:45 +01:00
Heiner Kallweit
03f9863b1a i2c: i801: Add helper i801_check_and_clear_pec_error
Avoid code duplication and factor out checking and clearing PEC error
bit to new helper i801_check_and_clear_pec_error().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-02-08 18:06:45 +01:00
Heiner Kallweit
ea4f32970b i2c: i801: Define FEATURES_ICH5 as an extension of FEATURES_ICH4
This change simplifies the code a little and makes clearer that the
ICH5 feature set is an extension of the ICH4 feature set.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-02-08 18:06:44 +01:00
Mark Brown
15d97222c8
ASoC: Intel: avs: Add support for sending initial
Merge series from Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>:

In some cases it may be desirable to provide default initial
configuration for FW module using payload. To facilitate such solution
extend topology to contain initial config information, parse it and then
send data to FW if present.

Amadeusz Sławiński (3):
  ASoC: Intel: avs: UAPI: Add tokens for initial config feature
  ASoC: Intel: avs: Add topology parsing support for initial config
  ASoC: Intel: avs: Send initial config to module if present

 include/uapi/sound/intel/avs/tokens.h |   9 ++
 sound/soc/intel/avs/path.c            |  33 ++++++
 sound/soc/intel/avs/topology.c        | 164 +++++++++++++++++++++++++-
 sound/soc/intel/avs/topology.h        |  13 ++
 4 files changed, 217 insertions(+), 2 deletions(-)

--
2.34.1
2024-02-08 16:56:56 +00:00
Paulo Alcantara
55c7788c37 smb: client: set correct d_type for reparse points under DFS mounts
Send query dir requests with an info level of
SMB_FIND_FILE_FULL_DIRECTORY_INFO rather than
SMB_FIND_FILE_DIRECTORY_INFO when the client is generating its own
inode numbers (e.g. noserverino) so that reparse tags still
can be parsed directly from the responses, but server won't
send UniqueId (server inode number)

Signed-off-by: Paulo Alcantara <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-02-08 10:50:40 -06:00
Steve French
45be0882c5 smb3: add missing null server pointer check
Address static checker warning in cifs_ses_get_chan_index():
    warn: variable dereferenced before check 'server'
To be consistent, and reduce risk, we should add another check
for null server pointer.

Fixes: 88675b22d3 ("cifs: do not search for channel if server is terminating")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-02-08 10:50:40 -06:00
Greg Kroah-Hartman
3ca8fbabcc Revert "kobject: Remove redundant checks for whether ktype is NULL"
This reverts commit 1b28cb81da.

It is reported to cause problems, so revert it for now until the root
cause can be found.

Reported-by: kernel test robot <oliver.sang@intel.com>
Fixes: 1b28cb81da ("kobject: Remove redundant checks for whether ktype is NULL")
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Closes: https://lore.kernel.org/oe-lkp/202402071403.e302e33a-oliver.sang@intel.com
Link: https://lore.kernel.org/r/2024020849-consensus-length-6264@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-08 16:39:25 +00:00
Thangaraj Samynathan
9538edeb72
spi: mchp-pci1xxxx: DMA support for copying data to and from SPI Buf
pci1xxxx_spi_transfer_with_dma adds DMA support to copy the data between
host cpu buffer and SPI IO Buffer.
On DMA Completion interrupt, the next SPI transaction is initiated in isr.
Helper functions pci1xxxx_spi_setup, pci1xxxx_spi_setup_dma_from_io,
pci1xxxx_spi_setup_dma_to_io and pci1xxxx_start_spi_xfer are added for
setting up spi, setting up dma operations, and to start spi transfer
respectively. In the existing implementation, codes are replaced with
helper functions wherever applicable.

Signed-off-by: Thangaraj Samynathan <thangaraj.s@microchip.com>
Link: https://lore.kernel.org/r/20240207080621.30742-3-thangaraj.s@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:34:53 +00:00
Thangaraj Samynathan
3e7cfd6ad2
spi: mchp-pci1xxxx: Add support for DMA in SPI
In PCI1xxxx C0, support for DMA in PCIe endpoint is added
to enhance the SPI performance. With this support, the
performance is improved from 6Mbps to 17Mbps with 20Mhz clock.
- DMA Supports two Channels, 0 and 1
- SPI Instance 0 uses chan 0 and SPI Instance 1 uses chan 1
- DMA can be used only if SPI is mapped to PF0 in the multi
function endpoint and the MSI interrupt is supported
- MSI interrupt of one of the SPI instance is assigned to the DMA
and both channels 0 and 1 share the same irq, the MSI address and
MSI Data of the irq is obtained and stored in DMA registers to
generate interrupt

Signed-off-by: Thangaraj Samynathan <thangaraj.s@microchip.com>
Link: https://lore.kernel.org/r/20240207080621.30742-2-thangaraj.s@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:34:52 +00:00
Tudor Ambarus
e010c04958
spi: s3c64xx: add support for google,gs101-spi
Add support for GS101 SPI. GS101 integrates 16 SPI nodes, all with 64
bytes FIFOs. GS101 allows just 32 bit register accesses, otherwise a
Serror Interrupt is raised. Do the write reg accesses in 32 bits.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207111516.2563218-5-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:47 +00:00
Tudor Ambarus
b7bafb9f54
spi: s3c64xx: add s3c64xx_iowrite{8,16}_32_rep accessors
Allow SoCs that require 32 bits register accesses to write data in
chunks of 8 or 16 bits. One SoC that requires 32 bit register accesses
is the google gs101. The operation is rare, thus open code it in the
driver rather than making it generic (through asm-generic/io.h).

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207111516.2563218-4-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:46 +00:00
Tudor Ambarus
80d3204a3b
spi: s3c64xx: prepare for a different flavor of iowrite rep
There are SoCs (gs101) that allow only 32 bit register accesses. As the
requirement is rare enough, for those SoCs we'll open code in the driver
some s3c64xx_iowrite{8,16}_32_rep() accessors. Prepare for such addition.

Suggested-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20240207111516.2563218-3-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:45 +00:00
Tudor Ambarus
ff690e75d6
spi: dt-bindings: samsung: add google,gs101-spi compatible
Add "google,gs101-spi" dedicated compatible for representing SPI of
Google GS101 SoC.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207111516.2563218-2-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:45 +00:00
Tudor Ambarus
acd6c7b1d2
spi: s3c64xx: drop a superfluous bitwise NOT operation
val &= ~mask;
val |= mask;

is equivalent to:
val |= mask;

Drop the superfluous bitwise NOT operation.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-18-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:40 +00:00
Tudor Ambarus
eb8096c30a
spi: s3c64xx: remove duplicated definition
S3C64XX_SPI_TRAILCNT brings no benefit in terms of name over
S3C64XX_SPI_MAX_TRAILCNT. Remove the duplicated definition.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-17-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:39 +00:00
Tudor Ambarus
f186d34071
spi: s3c64xx: downgrade dev_warn to dev_dbg for optional dt props
"samsung,spi-src-clk" and "num-cs" are optional dt properties. Downgrade
the message from warning to debug message.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-16-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:38 +00:00
Tudor Ambarus
91a9b8e6b6
spi: s3c64xx: drop blank line between declarations
Drop the blank line and move the logical operation in the body of the
function rather than in initialization list.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-15-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:37 +00:00
Tudor Ambarus
1a234accc9
spi: s3c64xx: return ETIMEDOUT for wait_for_completion_timeout()
ETIMEDOUT is more specific than EIO, use it for
wait_for_completion_timeout().

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-14-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:36 +00:00
Tudor Ambarus
4c64520505
spi: s3c64xx: rename prepare_dma() to s3c64xx_prepare_dma()
Don't monopolize the name. Prepend the driver prefix to the function
name.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-13-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:36 +00:00
Tudor Ambarus
60dc8d342e
spi: s3c64xx: propagate the dma_submit_error() error code
DMA submit should just add the dma descriptor to a queue, without firing
it. EIO is misleading and hides what happens in DMA. Propagate the
dma_submit_error() error code, don't overwrite it.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-12-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:35 +00:00
Tudor Ambarus
e9c49effde
spi: s3c64xx: check return code of dmaengine_slave_config()
Check the return code of dmaengine_slave_config().

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-11-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:34 +00:00
Tudor Ambarus
5d7f4f4367
spi: s3c64xx: move common code outside if else
Move common code outside if else to avoid code duplication.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-10-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:33 +00:00
Tudor Ambarus
9d47e411f4
spi: s3c64xx: remove else after return
Else case is not needed after a return, remove it.

Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-9-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:32 +00:00
Tudor Ambarus
271f18816b
spi: s3c64xx: remove unneeded (void *) casts in of_match_table
of_device_id::data is an opaque pointer. No explicit cast is needed.
Remove unneeded (void *) casts in of_match_table.

Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-8-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:31 +00:00
Tudor Ambarus
97b63f4707
spi: s3c64xx: fix typo, s/configuartion/configuration
Fix typo, s/configuartion/configuration.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-7-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:30 +00:00
Tudor Ambarus
a336d41bbe
spi: s3c64xx: avoid possible negative array index
The platform id is used as an index into the fifo_lvl_mask array.
Platforms can come with a negative device ID, PLATFORM_DEVID_NONE (-1),
thus we risked a negative array index. Catch such cases and fail to
probe.

Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-6-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:29 +00:00
Tudor Ambarus
7256d6bdd4
spi: s3c64xx: explicitly include <linux/types.h>
The driver uses u32 and relies on an implicit inclusion of
<linux/types.h>.

It is good practice to directly include all headers used, it avoids
implicit dependencies and spurious breakage if someone rearranges
headers and causes the implicit include to vanish.

Include the missing header.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-5-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:28 +00:00
Tudor Ambarus
4568fa574f
spi: s3c64xx: explicitly include <linux/bits.h>
The driver uses GENMASK() but does not include <linux/bits.h>.

It is good practice to directly include all headers used, it avoids
implicit dependencies and spurious breakage if someone rearranges
headers and causes the implicit include to vanish.

Include the missing header.

Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-4-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:27 +00:00
Tudor Ambarus
42a9ac378d
spi: s3c64xx: explicitly include <linux/io.h>
The driver uses readl() but does not include <linux/io.h>.

It is good practice to directly include all headers used, it avoids
implicit dependencies and spurious breakage if someone rearranges
headers and causes the implicit include to vanish.

Include the missing header.

Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-3-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:27 +00:00
Tudor Ambarus
a77ce80f63
spi: s3c64xx: sort headers alphabetically
Sorting headers alphabetically helps locating duplicates,
and makes it easier to figure out where to insert new headers.

Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240207120431.2766269-2-tudor.ambarus@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-08 16:33:26 +00:00
Thomas Hellström
eb538b5574 drm/xe/vm: Avoid reserving zero fences
The function xe_vm_prepare_vma was blindly accepting zero as the
number of fences and forwarded that to drm_exec_prepare_obj.

However, that leads to an out-of-bounds shift in the
dma_resv_reserve_fences() and while one could argue that the
dma_resv code should be robust against that, avoid attempting
to reserve zero fences.

Relevant stack trace:

[773.183188] ------------[ cut here ]------------
[773.183199] UBSAN: shift-out-of-bounds in ../include/linux/log2.h:57:13
[773.183241] shift exponent 64 is too large for 64-bit type 'long unsigned int'
[773.183254] CPU: 2 PID: 1816 Comm: xe_evict Tainted: G     U             6.8.0-rc3-xe #1
[773.183256] Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 2014 10/14/2022
[773.183257] Call Trace:
[773.183258]  <TASK>
[773.183260]  dump_stack_lvl+0xaf/0xd0
[773.183266]  dump_stack+0x10/0x20
[773.183283]  ubsan_epilogue+0x9/0x40
[773.183286]  __ubsan_handle_shift_out_of_bounds+0x10f/0x170
[773.183293]  dma_resv_reserve_fences.cold+0x2b/0x48
[773.183295]  ? ww_mutex_lock+0x3c/0x110
[773.183301]  drm_exec_prepare_obj+0x45/0x60 [drm_exec]
[773.183313]  xe_vm_prepare_vma+0x33/0x70 [xe]
[773.183375]  xe_vma_destroy_unlocked+0x55/0xa0 [xe]
[773.183427]  xe_vm_close_and_put+0x526/0x940 [xe]

Fixes: 2714d50936 ("drm/xe: Convert pagefaulting code to use drm_exec")
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240208132115.3132-1-thomas.hellstrom@linux.intel.com
2024-02-08 16:32:08 +01:00
Marc Zyngier
aade38faca KVM: arm64: Handle Apple M2 as not having HCR_EL2.NV1 implemented
Although the Apple M2 family of CPUs can have HCR_EL2.NV1 being
set and clear, with the change in trap behaviour being OK, they
explode spectacularily on an EL2 S1 page table using the nVHE
format. This is no good.

Let's pretend this HW doesn't have NV1, and move along.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20240122181344.258974-11-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:45 +00:00
Marc Zyngier
94f29ab2d8 KVM: arm64: Force guest's HCR_EL2.E2H RES1 when NV1 is not implemented
If NV1 isn't supported on a system, make sure we always evaluate
the guest's HCR_EL2.E2H as RES1, irrespective of what the guest
may have written there.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240122181344.258974-10-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:45 +00:00
Marc Zyngier
c21df6e43f KVM: arm64: Expose ID_AA64MMFR4_EL1 to guests
We can now expose ID_AA64MMFR4_EL1 to guests, and let NV guests
understand that they cannot really switch HCR_EL2.E2H to 0 on
some platforms.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240122181344.258974-9-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:45 +00:00
Marc Zyngier
3944382fa6 arm64: Treat HCR_EL2.E2H as RES1 when ID_AA64MMFR4_EL1.E2H0 is negative
For CPUs that have ID_AA64MMFR4_EL1.E2H0 as negative, it is important
to avoid the boot path that sets HCR_EL2.E2H=0. Fortunately, we
already have this path to cope with fruity CPUs.

Tweak init_el2 to look at ID_AA64MMFR4_EL1.E2H0 first.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20240122181344.258974-8-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:45 +00:00
Marc Zyngier
da9af5071b arm64: cpufeature: Detect HCR_EL2.NV1 being RES0
A variant of FEAT_E2H0 not being implemented exists in the form of
HCR_EL2.E2H being RES1 *and* HCR_EL2.NV1 being RES0 (indicating that
only VHE is supported on the host and nested guests).

Add the necessary infrastructure for this new CPU capability.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20240122181344.258974-7-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:45 +00:00
Marc Zyngier
805bb61f82 arm64: cpufeature: Add ID_AA64MMFR4_EL1 handling
Add ID_AA64MMFR4_EL1 to the list of idregs the kernel knows about,
and describe the E2H0 field.

Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20240122181344.258974-6-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:45 +00:00
Marc Zyngier
cfc680bb04 arm64: sysreg: Add layout for ID_AA64MMFR4_EL1
ARMv9.5 has infroduced ID_AA64MMFR4_EL1 with a bunch of new features.
Add the corresponding layout.

This is extracted from the public ARM SysReg_xml_A_profile-2023-09
delivery, timestamped d55f5af8e09052abe92a02adf820deea2eaed717.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Miguel Luis <miguel.luis@oracle.com>
Link: https://lore.kernel.org/r/20240122181344.258974-5-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:44 +00:00
Marc Zyngier
d42bf63fd4 arm64: cpufeature: Correctly display signed override values
When a field gets overriden, the kernel indicates the result of
the override in dmesg. This works well with unsigned fields, but
results in a pretty ugly output when the field is signed.

Truncate the field to its width before displaying it.

Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20240122181344.258974-4-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:44 +00:00
Marc Zyngier
d9a065914d arm64: cpufeatures: Correctly handle signed values
Although we've had signed values for some features such as PMUv3
and FP, the code that handles the comparaison with some limit
has a couple of annoying issues:

- the min_field_value is always unsigned, meaning that we cannot
  easily compare it with a negative value

- it is not possible to have a range of values, let alone a range
  of negative values

Fix this by:

- adding an upper limit to the comparison, defaulting to all bits
  being set to the maximum positive value

- ensuring that the signess of the min and max values are taken into
  account

A ARM64_CPUID_FIELDS_NEG() macro is provided for signed features, but
nothing is using it yet.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20240122181344.258974-3-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:44 +00:00
Marc Zyngier
53eaeb7fbe arm64: Add macro to compose a sysreg field value
A common idiom is to compose a tupple (reg, field, val) into
a symbol matching an autogenerated definition.

Add a help performing the concatenation and replace it when
open-coded implementations exist.

Suggested-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20240122181344.258974-2-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2024-02-08 15:12:44 +00:00
Jani Nikula
3ce7384048 drm/bridge: remove drm_bridge_get_edid() in favour of drm_bridge_edid_read()
All users of drm_bridge_get_edid() have been converted to use
drm_bridge_edid_read(). Remove drm_bridge_get_edid().

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/c51d50edddbe8816eaa63e6ccafa9f2354b506ba.1706038510.git.jani.nikula@intel.com
2024-02-08 17:12:33 +02:00
Jani Nikula
b334be86c6 drm/meson: switch to drm_bridge_edid_read()
Prefer using the struct drm_edid based functions.

Not ideal, should use source physical address from connector info.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/0a6556b4abaa341b5a3b9b466dbb23714369f7e1.1706038510.git.jani.nikula@intel.com
2024-02-08 17:12:28 +02:00
Jani Nikula
d61f65159e drm/bridge: tfp410: clear the EDID property on failures
If EDID read fails, clear the EDID property.

Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/f49d95ce21e85495d73384acd184f4f9778368ee.1706038510.git.jani.nikula@intel.com
2024-02-08 17:12:26 +02:00
Jani Nikula
7b90330f20 drm/bridge: tfp410: use drm_bridge_edid_read()
Prefer using the struct drm_edid based functions.

Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/f857bb36a78c57dc6a07b7b6cc90312fc3139ca8.1706038510.git.jani.nikula@intel.com
2024-02-08 17:12:23 +02:00
Jani Nikula
400bb4ee97 drm: bridge: simple-bridge: clear the EDID property on failures
If EDID read fails, clear the EDID property.

Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/3e3c9505fa6859a96ead70121791fd9c4d946b6f.1706038510.git.jani.nikula@intel.com
2024-02-08 17:12:21 +02:00
Jani Nikula
0d966d59d1 drm: bridge: simple-bridge: use drm_bridge_edid_read()
Prefer using the struct drm_edid based functions.

Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/ae1fd3d94829e3e5c197ca58eb18108cb004cf0b.1706038510.git.jani.nikula@intel.com
2024-02-08 17:11:32 +02:00
Jani Nikula
392b6e9a3c drm/bridge: lt9611uxc: use drm_bridge_edid_read()
Prefer using the struct drm_edid based functions.

Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/b784ed15b792bb87f8c40b90c5c42591d7878643.1706038510.git.jani.nikula@intel.com
2024-02-08 17:11:25 +02:00
Jani Nikula
4f7ad8cca6 drm/bridge: lt8912b: use ->edid_read callback
Prefer using the struct drm_edid based functions.

Cc: Adrien Grassein <adrien.grassein@gmail.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/98f0356f1bd279bc337c904d8313c9afee530b48.1706038510.git.jani.nikula@intel.com
2024-02-08 17:11:22 +02:00