| Age | Commit message (Collapse) | Author | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
- use after free fix in imsttfb (Zheng Wang)
- fix error handling in arcfb (Zongjie Li)
- lots of whitespace cleanups (Thomas Zimmermann)
- add 1920x1080 modedb entry (me)
* tag 'fbdev-for-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: stifb: Fix info entry in sti_struct on error path
fbdev: modedb: Add 1920x1080 at 60 Hz video mode
fbdev: imsttfb: Fix use after free bug in imsttfb_probe
fbdev: vfb: Remove trailing whitespaces
fbdev: valkyriefb: Remove trailing whitespaces
fbdev: stifb: Remove trailing whitespaces
fbdev: sa1100fb: Remove trailing whitespaces
fbdev: platinumfb: Remove trailing whitespaces
fbdev: p9100: Remove trailing whitespaces
fbdev: maxinefb: Remove trailing whitespaces
fbdev: macfb: Remove trailing whitespaces
fbdev: hpfb: Remove trailing whitespaces
fbdev: hgafb: Remove trailing whitespaces
fbdev: g364fb: Remove trailing whitespaces
fbdev: controlfb: Remove trailing whitespaces
fbdev: cg14: Remove trailing whitespaces
fbdev: atmel_lcdfb: Remove trailing whitespaces
fbdev: 68328fb: Remove trailing whitespaces
fbdev: arcfb: Fix error handling in arcfb_probe()
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"A single small fix for the UFS driver to fix a power management
failure"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Fix I/O hang that occurs when BKOPS fails in W-LUN suspend
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Pull block fixes from Jens Axboe:
"Just a few minor fixes for drivers, and a deletion of a file that is
woefully out-of-date these days"
* tag 'block-6.4-2023-05-13' of git://git.kernel.dk/linux:
Documentation/block: drop the request.rst file
ublk: fix command op code check
block/rnbd: replace REQ_OP_FLUSH with REQ_OP_WRITE
nbd: Fix debugfs_create_dir error checking
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Add a return to the error path when cxl_cdat_read_table() fails. Current
code continues with the table pointer points to freed memory.
Fixes: 7a877c923995 ("cxl/pci: Simplify CDAT retrieval error path")
Signed-off-by: Dave Jiang <[email protected]>
Reviewed-by: Davidlohr Bueso <[email protected]>
Link: https://lore.kernel.org/r/168382793506.3510737.4792518576623749076.stgit@djiang5-mobl3
Signed-off-by: Dan Williams <[email protected]>
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The GuC has a completely separate engine class enum when referring to
register capture lists, which combines render and compute. The driver
was using the 'normal' GuC specific engine class enum instead. That
meant that it thought it was defining a capture list for compute
engines, the list was actually being applied to the GSC engine. And if
a platform didn't have a render engine, then it would get no compute
register captures at all.
Fix that.
Signed-off-by: John Harrison <[email protected]>
Reviewed-by: Alan Previn <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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A recent change bumped a 'notice' message up to 'error' level for
debug builds to help trap incorrect configurations in CI systems.
Unfortunately, the error condition in question is triggered by the
error injection probe test. So change the message again to be 'probe
error' level instead.
Signed-off-by: John Harrison <[email protected]>
Fixes: 760133d42f0a ("drm/i915/uc: Make unexpected firmware versions an error in debug builds")
Cc: John Harrison <[email protected]>
Cc: Daniele Ceraolo Spurio <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Alan Previn <[email protected]>
Cc: Lucas De Marchi <[email protected]>
Cc: Jani Nikula <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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In case of CONFIG_BLKDEV_UBLK_LEGACY_OPCODES, type of cmd opcode could
be 0 or 'u'; and type can only be 'u' if CONFIG_BLKDEV_UBLK_LEGACY_OPCODES
isn't set.
So fix the wrong check.
Fixes: 2d786e66c966 ("block: ublk: switch to ioctl command encoding")
Signed-off-by: Ming Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
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Since flush bios are implemented as writes with no data and
the preflush flag per Christoph's comment [1].
And we need to change it in rnbd accordingly. Otherwise, I
got splatting when create fs from rnbd client.
[ 464.028545] ------------[ cut here ]------------
[ 464.028553] WARNING: CPU: 0 PID: 65 at block/blk-core.c:751 submit_bio_noacct+0x32c/0x5d0
[ ... ]
[ 464.028668] CPU: 0 PID: 65 Comm: kworker/0:1H Tainted: G OE 6.4.0-rc1 #9
[ 464.028671] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.15.0-0-g2dd4b9b-rebuilt.opensuse.org 04/01/2014
[ 464.028673] Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
[ 464.028717] RIP: 0010:submit_bio_noacct+0x32c/0x5d0
[ 464.028720] Code: 03 0f 85 51 fe ff ff 48 8b 43 18 8b 88 04 03 00 00 85 c9 0f 85 3f fe ff ff e9 be fd ff ff 0f b6 d0 3c 0d 74 26 83 fa 01 74 21 <0f> 0b b8 0a 00 00 00 e9 56 fd ff ff 4c 89 e7 e8 70 a1 03 00 84 c0
[ 464.028722] RSP: 0018:ffffaf3680b57c68 EFLAGS: 00010202
[ 464.028724] RAX: 0000000000060802 RBX: ffffa09dcc18bf00 RCX: 0000000000000000
[ 464.028726] RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffffa09dde081d00
[ 464.028727] RBP: ffffaf3680b57c98 R08: ffffa09dde081d00 R09: ffffa09e38327200
[ 464.028729] R10: 0000000000000000 R11: 0000000000000000 R12: ffffa09dde081d00
[ 464.028730] R13: ffffa09dcb06e1e8 R14: 0000000000000000 R15: 0000000000200000
[ 464.028733] FS: 0000000000000000(0000) GS:ffffa09e3bc00000(0000) knlGS:0000000000000000
[ 464.028735] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 464.028736] CR2: 000055a4e8206c40 CR3: 0000000119f06000 CR4: 00000000003506f0
[ 464.028738] Call Trace:
[ 464.028740] <TASK>
[ 464.028746] submit_bio+0x1b/0x80
[ 464.028748] rnbd_srv_rdma_ev+0x50d/0x10c0 [rnbd_server]
[ 464.028754] ? percpu_ref_get_many.constprop.0+0x55/0x140 [rtrs_server]
[ 464.028760] ? __this_cpu_preempt_check+0x13/0x20
[ 464.028769] process_io_req+0x1dc/0x450 [rtrs_server]
[ 464.028775] rtrs_srv_inv_rkey_done+0x67/0xb0 [rtrs_server]
[ 464.028780] __ib_process_cq+0xbc/0x1f0 [ib_core]
[ 464.028793] ib_cq_poll_work+0x2b/0xa0 [ib_core]
[ 464.028804] process_one_work+0x2a9/0x580
[1]. https://lore.kernel.org/all/[email protected]/
Signed-off-by: Guoqing Jiang <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
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The debugfs_create_dir function returns ERR_PTR in case of error, and the
only correct way to check if an error occurred is 'IS_ERR' inline function.
This patch will replace the null-comparison with IS_ERR.
Signed-off-by: Ivan Orlov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Takashi Sakamoto:
- fix early release of request packet
* tag 'firewire-fixes-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: net: fix unexpected release of object for asynchronous request packet
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Minor fix to reset the info field to NULL in case of error.
Signed-off-by: Helge Deller <[email protected]>
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Add typical resolution for Full-HD monitors.
Signed-off-by: Helge Deller <[email protected]>
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CHV_FUSE_GT (0x182168) is purely about GT fuses, therefore belongs in
intel_gt_regs.h, is in the gcfgmmio unit, but is technically in the VLV
display base area.
Add VLV_GUNIT_BASE to drop dependency on VLV_DISPLAY_BASE and thus
display/intel_display_reg_defs.h in intel_gt_regs.h.
v2: Add VLV_GUNIT_BASE (Ville)
Cc: Ville Syrjälä <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Reviewed-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Enable PXP with MTL-GSC-CS: add the has_pxp into device info
and increase the debugfs teardown timeouts to align with
new GSC-CS + firmware specs.
Now that we have 3 places that are selecting pxp timeouts
based on tee vs gsccs back-end, let's add a helper.
Signed-off-by: Alan Previn <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Signed-off-by: Radhakrishna Sripada <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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On legacy platforms, KCR HW enabling is done at the time the mei
component interface is bound. It's also disabled during unbind.
However, for MTL onwards, we don't depend on a tee component
to start sending GSC-CS firmware messages.
Thus, immediately enable (or disable) KCR HW on PXP's init,
fini and resume.
Signed-off-by: Alan Previn <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Signed-off-by: Radhakrishna Sripada <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Because of the additional firmware, component-driver and
initialization depedencies required on MTL platform before a
PXP context can be created, UMD calling for PXP creation as a
way to get-caps can take a long time. An actual real world
customer stack has seen this happen in the 4-to-8 second range
after the kernel starts (which sees MESA's init appear in the
middle of this range as the compositor comes up). To avoid
unncessary delays experienced by the UMD for get-caps purposes,
add a GET_PARAM for I915_PARAM_PXP_SUPPORT.
However, some failures can still occur after all the depedencies
are met (such as firmware init flow failure, bios configurations
or SOC fusing not allowing PXP enablement). Those scenarios will
only be known to user space when it attempts creating a PXP context
and is documented in the GEM UAPI headers.
While making this change, create a helper that is common to both
GET_PARAM caller and intel_pxp_start since the latter does
similar checks.
Signed-off-by: Alan Previn <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Acked-by: Jordan Justen <[email protected]>
Signed-off-by: Radhakrishna Sripada <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Add MTL's function for ARB session creation using PXP firmware
version 4.3 ABI structure format.
While relooking at the ARB session creation flow in intel_pxp_start,
let's address missing UAPI documentation. Without actually changing
backward compatible behavior, update i915's drm-uapi comments
that describe the possible error values when creating a context
with I915_CONTEXT_PARAM_PROTECTED_CONTENT:
Since the first merge of PXP support on ADL, i915 returns -ENXIO
if a dependency such as firmware or component driver was yet to
be loaded or returns -EIO if the creation attempt failed when
requested by the PXP firmware (specific firmware error responses
are reported in dmesg).
Add MTL's function for ARB session invalidation but this
reuses PXP firmware version 4.2 ABI structure format.
For both cases, in the back-end gsccs functions for sending messages
to the firmware inspect the GSC-CS-Mem-Header's pending-bit which
means the GSC firmware is busy and we should retry.
Given the last hw requirement, lets also update functions in
front-end layer that wait for session creation or teardown
completion to use new worst case timeout periods.
Signed-off-by: Alan Previn <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Signed-off-by: Radhakrishna Sripada <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Add GSC engine based method for sending PXP firmware packets
to the GSC firmware for MTL (and future) products.
Use the newly added helpers to populate the GSC-CS memory
header and send the message packet to the FW by dispatching
the GSC_HECI_CMD_PKT instruction on the GSC engine.
We use non-priveleged batches for submission to GSC engine
which require two buffers for the request:
- a buffer for the HECI packet that contains PXP FW commands
- a batch-buffer that contains the engine instruction for
sending the HECI packet to the GSC firmware.
Thus, add the allocation and freeing of these buffers in gsccs
init and fini.
The GSC-fw may reply to commands with a SUCCESS but with an
additional pending-bit set in the reply packet. This bit
means the GSC-FW is currently busy and the caller needs to
try again with the gsc_message_handle the fw returned. Thus,
add a wrapper to continuously retry send_message while
replaying the gsc_message_handle. Retries need to follow the
arch-spec count and delay until GSC-FW replies with the real
SUCCESS or timeout after that spec'd delay.
The GSC-fw requires a non-zero host_session_handle provided
by the caller to enable gsc_message_handle tracking. Thus,
allocate the host_session_handle at init and destroy it
at fini (the latter requiring an FYI to the gsc-firmware).
Signed-off-by: Alan Previn <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Signed-off-by: Radhakrishna Sripada <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Add helper functions into a new file for heci-packet-submission.
The helpers will handle generating the MTL GSC-CS Memory-Header
and submission of the Heci-Cmd-Packet instructions to the engine.
NOTE1: These common functions for heci-packet-submission will be used
by different i915 callers:
1- GSC-SW-Proxy: This is pending upstream publication awaiting
a few remaining opens
2- MTL-HDCP: An equivalent patch has also been published at:
https://patchwork.freedesktop.org/series/111876/. (Patch 1)
3- PXP: This series.
NOTE2: A difference in this patch vs what is appearing is in bullet 2
above is that HDCP (and SW-Proxy) will be using priveleged submission
(GGTT and common gsc-uc-context) while PXP will be using non-priveleged
PPGTT, context and batch buffer. Therefore this patch will only slightly
overlap with the MTL-HDCP patches despite have very similar function
names (emit_foo vs emit_nonpriv_foo). This is because HECI_CMD_PKT
instructions require different flows and hw-specific code when done
via PPGTT based submission (not different from other engines). MTL-HDCP
contains the same intel_gsc_mtl_header_t structures as this but the
helpers there are different. Both add the same new file names.
NOTE3: Additional clarity about the heci-cmd-pkt layout and where the
common helpers come in:
- On MTL, when an i915 subsystem needs to send a command request
to the security firmware, it will send that via the GSC-
engine-command-streamer.
- However those commands, (lets call them "gsc_specific_fw_api"
calls), are not understood by the GSC command streamer hw.
- The GSC CS only looks at the GSC_HECI_CMD_PKT instruction and
passes it along to the GSC firmware.
- The GSC FW on the other hand needs additional metadata to know
which usage service is being called (PXP, HDCP, proxy, etc) along
with session specific info. Thus an extra header called GSC-CS
HECI Memory Header, (C) in below diagram is prepended before
the FW specific API, (D).
- Thus, the structural layout of the request submitted would
need to look like the diagram below (for non-priv PXP).
- In the diagram, the common helper for HDCP, (GSC-Sw-Proxy) and
PXP (i.e. new function intel_gsc_uc_heci_cmd_emit_mtl_header)
will populate blob (C) while additional helpers, different for
PPGGTT (this patch) vs GGTT (HDCP series) will populate
blobs (A) and (B) below.
___________________________________________________________
(A) | MI_BATCH_BUFFER_START (ppgtt, batchbuff-addr, ...) |
| | |
| _|________________________________________________ |
| (B)| GSC_HECI_CMD_PKT (pkt-addr-in, pkt-size-in, | |
| | pkt-addr-out, pkt-size-out) |--------
| | MI_BATCH_BUFFER_END | | |
| |________________________________________________| | |
| | |
|_________________________________________________________| |
|
---------------------------------------------------------
|
\|/
______V___________________________________________
| _________________________________________ |
|(C)| | |
| | struct intel_gsc_mtl_header { | |
| | validity marker | |
| | heci_clent_id | |
| | ... | |
| | } | |
| |_______________________________________| |
|(D)| | |
| | struct gsc_fw_specific_api_foobar { | |
| | ... | |
| | For an example, see | |
| | 'struct pxp43_create_arb_in' at | |
| | intel_pxp_cmd_interface_43.h | |
| | | |
| | } | |
| | Struture depends on command type | |
| | struct gsc_fw_specific_api_foobar { | |
| |_______________________________________| |
|________________________________________________|
That said, this patch provides basic helpers but leaves the
PXP subsystem (i.e. the caller) to handle (D) and everything
else such as input/output size verification or handling the
responses from security firmware (for example, requiring a retry).
Signed-off-by: Alan Previn <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Signed-off-by: Radhakrishna Sripada <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Add MTL hw-plumbing enabling for KCR operation under PXP
which includes:
1. Updating 'pick-gt' to get the media tile for
KCR interrupt handling
2. Adding MTL's KCR registers for PXP operation
(init, status-checking, etc.).
While doing #2, lets create a separate registers header file for PXP
to be consistent with other i915 global subsystems.
Signed-off-by: Alan Previn <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Signed-off-by: Radhakrishna Sripada <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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For MTL, the PXP back-end transport uses the GSC engine to submit
HECI packets through the HW to the GSC firmware for PXP arb
session management. This submission uses a non-priveleged
batch buffer, a buffer for the command packet and of course
a context targeting the GSC-CS.
Thus for MTL, we need to allocate and free a set of execution
submission resources for the management of the arbitration session.
Lets start with the context creation first since that object and
its usage is very straight-forward. We'll add the buffer allocation
and freeing later when we introduce the gsccs' send-message function.
Do this one time allocation of gsccs specific resources in
a new gsccs source file with intel_pxp_gsccs_init / fini functions
and hook them up from the PXP front-end.
Signed-off-by: Alan Previn <[email protected]>
Reviewed-by: Daniele Ceraolo Spurio <[email protected]>
Signed-off-by: Radhakrishna Sripada <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Pull drm fixes from Dave Airlie:
"About the usual for this stage, bunch of amdgpu, a few i915 and a
scattering of fixes across the board"
dsc:
- macro fixes
simplefb:
- fix VESA format
scheduler:
- timeout handling fix
fbdev:
- avoid potential out-of-bounds access in generic fbdev emulation
ast:
- improve AST2500+ compat on ARM
mipi-dsi:
- small mipi-dsi fix
amdgpu:
- VCN3 fixes
- APUs always support PCI atomics
- legacy power management fixes
- DCN 3.1.4 fix
- DCFCLK fix
- fix several RAS irq refcount mismatches
- GPU Reset fix
- GFX 11.0.4 fix
i915:
- taint kernel when force_probe is used
- NULL deref and div-by-zero fixes for display
- GuC error capture fix for Xe devices"
* tag 'drm-fixes-2023-05-12' of git://anongit.freedesktop.org/drm/drm: (24 commits)
drm/amdgpu: change gfx 11.0.4 external_id range
drm/amdgpu/jpeg: Remove harvest checking for JPEG3
drm/amdgpu/gfx: disable gfx9 cp_ecc_error_irq only when enabling legacy gfx ras
drm/amd/pm: avoid potential UBSAN issue on legacy asics
drm/i915: taint kernel when force probing unsupported devices
drm/i915/dp: prevent potential div-by-zero
drm/i915: Fix NULL ptr deref by checking new_crtc_state
drm/i915/guc: Don't capture Gen8 regs on Xe devices
drm/amdgpu: disable sdma ecc irq only when sdma RAS is enabled in suspend
drm/amdgpu: Fix vram recover doesn't work after whole GPU reset (v2)
drm/amdgpu: drop gfx_v11_0_cp_ecc_error_irq_funcs
drm/amd/display: Enforce 60us prefetch for 200Mhz DCFCLK modes
drm/amd/display: Add symclk workaround during disable link output
drm/amd/pm: parse pp_handle under appropriate conditions
drm/amdgpu: set gfx9 onwards APU atomics support to be true
drm/amdgpu/nv: update VCN 3 max HEVC encoding resolution
drm/sched: Check scheduler work queue before calling timeout handling
drm/mipi-dsi: Set the fwnode for mipi_dsi_device
drm/nouveau/disp: More DP_RECEIVER_CAP_SIZE array fixes
drm/dsc: fix DP_DSC_MAX_BPP_DELTA_* macro values
...
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A use-after-free bug may occur if init_imstt invokes framebuffer_release
and free the info ptr. The caller, imsttfb_probe didn't notice that and
still keep the ptr as private data in pdev.
If we remove the driver which will call imsttfb_remove to make cleanup,
UAF happens.
Fix it by return error code if bad case happens in init_imstt.
Signed-off-by: Zheng Wang <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amdgpu:
- VCN3 fixes
- APUs always support PCI atomics
- Legacy power management fixes
- DCN 3.1.4 fix
- DCFCLK fix
- Fix several RAS irq refcount mismatches
- GPU Reset fix
- GFX 11.0.4 fix
Signed-off-by: Dave Airlie <[email protected]>
From: Alex Deucher <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix to taint kernel when force_probe is used
- Null deref and div-by-zero fixes for display
- GuC error capture fix for Xe devices
Signed-off-by: Dave Airlie <[email protected]>
From: Joonas Lahtinen <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v6.4-rc2:
- More DSC macro fixes.
- Small mipi-dsi fix.
- Scheduler timeout handling fix.
---
drm-misc-fixes for v6.4-rc1:
- Fix DSC macros.
- Fix VESA format for simplefb.
- Prohibit potential out-of-bounds access in generic fbdev emulation.
- Improve AST2500+ compat on ARM.
Signed-off-by: Dave Airlie <[email protected]>
From: Maarten Lankhorst <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Move gmbus and dp aux irq handlers to their respective files. It should
be up to them what to do with the irq, not the generic irq code.
Signed-off-by: Jani Nikula <[email protected]>
Reviewed-by: Rodrigo Vivi <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/e825385fc03cb3d53c1f0b66712eea42dad69d59.1683219363.git.jani.nikula@intel.com
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Currently the KMD is using enum i915_cache_level to set caching policy for
buffer objects. This is flaky because the PAT index which really controls
the caching behavior in PTE has far more levels than what's defined in the
enum. In addition, the PAT index is platform dependent, having to translate
between i915_cache_level and PAT index is not reliable, and makes the code
more complicated.
From UMD's perspective there is also a necessity to set caching policy for
performance fine tuning. It's much easier for the UMD to directly use PAT
index because the behavior of each PAT index is clearly defined in Bspec.
Having the abstracted i915_cache_level sitting in between would only cause
more ambiguity. PAT is expected to work much like MOCS already works today,
and by design userspace is expected to select the index that exactly
matches the desired behavior described in the hardware specification.
For these reasons this patch replaces i915_cache_level with PAT index. Also
note, the cache_level is not completely removed yet, because the KMD still
has the need of creating buffer objects with simple cache settings such as
cached, uncached, or writethrough. For kernel objects, cache_level is used
for simplicity and backward compatibility. For Pre-gen12 platforms PAT can
have 1:1 mapping to i915_cache_level, so these two are interchangeable. see
the use of LEGACY_CACHELEVEL.
One consequence of this change is that gen8_pte_encode is no longer working
for gen12 platforms due to the fact that gen12 platforms has different PAT
definitions. In the meantime the mtl_pte_encode introduced specfically for
MTL becomes generic for all gen12 platforms. This patch renames the MTL
PTE encode function into gen12_pte_encode and apply it to all gen12. Even
though this change looks unrelated, but separating them would temporarily
break gen12 PTE encoding, thus squash them in one patch.
Special note: this patch changes the way caching behavior is controlled in
the sense that some objects are left to be managed by userspace. For such
objects we need to be careful not to change the userspace settings.There
are kerneldoc and comments added around obj->cache_coherent, cache_dirty,
and how to bypass the checkings by i915_gem_object_has_cache_level. For
full understanding, these changes need to be looked at together with the
two follow-up patches, one disables the {set|get}_caching ioctl's and the
other adds set_pat extension to the GEM_CREATE uAPI.
Bspec: 63019
Cc: Chris Wilson <[email protected]>
Signed-off-by: Fei Yang <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Reviewed-by: Matt Roper <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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This patch is a preparation for replacing enum i915_cache_level with PAT
index. Caching policy for buffer objects is set through the PAT index in
PTE, the old i915_cache_level is not sufficient to represent all caching
modes supported by the hardware.
Preparing the transition by adding some platform dependent data structures
and helper functions to translate the cache_level to pat_index.
cachelevel_to_pat: a platform dependent array mapping cache_level to
pat_index.
max_pat_index: the maximum PAT index recommended in hardware specification
Needed for validating the PAT index passed in from user
space.
i915_gem_get_pat_index: function to convert cache_level to PAT index.
obj_to_i915(obj): macro moved to header file for wider usage.
I915_MAX_CACHE_LEVEL: upper bound of i915_cache_level for the
convenience of coding.
Cc: Chris Wilson <[email protected]>
Cc: Matt Roper <[email protected]>
Signed-off-by: Fei Yang <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Reviewed-by: Andrzej Hajda <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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Now that we have encoder->devdata everwhere we don't need
the intel_bios_is_port_dp_dual_mode() wrapper any more.
And while at it let's include it in the child device log
dump as well since the logic in there is a bit more complex
than just DP&&HDMI.
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Acked-by: Gustavo Sousa <[email protected]>
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Swap the roles of the index vs. value for the VBT DDC pin
mapping tables. This is not strictly necessary for DDC pins
but it will make this work exactly like the AUX CH mapping
tables where the role reversal is necessary (or at least makes
things easier). Consistency is good.
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Gustavo Sousa <[email protected]>
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The big switch+if statement mess in map_aux_ch() is
illegible. Split up into cleaner per-platform arrays
like we already have for the gmbus pins.
We use enum aux_ch as the index and the VBT thing as
the value. Slightly non-intuitive perhaps but if we
did it the other way around we'd have problems with
AUX_CH_A being zero, and thus any non-populated
element would look like AUX_CH_A.
v2: flip the index vs. value around
TODO: Didn't bother with the platform variants beyond the
ones that really need remapping, which means if the
VBT is bogus we end up with a nonexistent aux ch.
Might be nice to check this a bit better.
Yet another bitmask in device info?
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Gustavo Sousa <[email protected]>
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Modernize the DP AUX CH register definitions with REG_BIT() & co.
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Jouni Högander <[email protected]>
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To avoid annoying spec lookups let's define more PS_CTRL
bits in the header.
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Luca Coelho <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter.
Current release - regressions:
- mtk_eth_soc: fix NULL pointer dereference
Previous releases - regressions:
- core:
- skb_partial_csum_set() fix against transport header magic value
- fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().
- annotate sk->sk_err write from do_recvmmsg()
- add vlan_get_protocol_and_depth() helper
- netlink: annotate accesses to nlk->cb_running
- netfilter: always release netdev hooks from notifier
Previous releases - always broken:
- core: deal with most data-races in sk_wait_event()
- netfilter: fix possible bug_on with enable_hooks=1
- eth: bonding: fix send_peer_notif overflow
- eth: xpcs: fix incorrect number of interfaces
- eth: ipvlan: fix out-of-bounds caused by unclear skb->cb
- eth: stmmac: Initialize MAC_ONEUS_TIC_COUNTER register"
* tag 'net-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (31 commits)
af_unix: Fix data races around sk->sk_shutdown.
af_unix: Fix a data race of sk->sk_receive_queue->qlen.
net: datagram: fix data-races in datagram_poll()
net: mscc: ocelot: fix stat counter register values
ipvlan:Fix out-of-bounds caused by unclear skb->cb
docs: networking: fix x25-iface.rst heading & index order
gve: Remove the code of clearing PBA bit
tcp: add annotations around sk->sk_shutdown accesses
net: add vlan_get_protocol_and_depth() helper
net: pcs: xpcs: fix incorrect number of interfaces
net: deal with most data-races in sk_wait_event()
net: annotate sk->sk_err write from do_recvmmsg()
netlink: annotate accesses to nlk->cb_running
kselftest: bonding: add num_grat_arp test
selftests: forwarding: lib: add netns support for tc rule handle stats get
Documentation: bonding: fix the doc of peer_notif_delay
bonding: fix send_peer_notif overflow
net: ethernet: mtk_eth_soc: fix NULL pointer dereference
selftests: nft_flowtable.sh: check ingress/egress chain too
selftests: nft_flowtable.sh: monitor result file sizes
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- fix some unused-variable warning in mtk-mdp3
- ignore unused suspend operations in nxp
- some driver fixes in rcar-vin
* tag 'media/v6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: platform: mtk-mdp3: work around unused-variable warning
media: nxp: ignore unused suspend operations
media: rcar-vin: Select correct interrupt mode for V4L2_FIELD_ALTERNATE
media: rcar-vin: Fix NV12 size alignment
media: rcar-vin: Gen3 can not scale NV12
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Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Acked-by: Helge Deller <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
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Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Acked-by: Helge Deller <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
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Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Acked-by: Helge Deller <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Acked-by: Helge Deller <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Acked-by: Helge Deller <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Acked-by: Helge Deller <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Helge Deller <[email protected]>
|
|
Fix coding style. No functional changes.
Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Sui Jingfeng <[email protected]
Signed-off-by: Helge Deller <[email protected]>
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