Commit Graph

772 Commits

Author SHA1 Message Date
Jeremy Cline 8b335bff64 drm/amdkfd: Fix out-of-bounds read in kdf_create_vcrat_image_cpu()
KASAN reported a slab-out-of-bounds read of size 1 in
kdf_create_vcrat_image_cpu().

This occurs when, for example, when on an x86_64 with a single NUMA node
because kfd_fill_iolink_info_for_cpu() is a no-op, but afterwards the
sub_type_hdr->length, which is out-of-bounds, is read and multiplied by
entries. Fortunately, entries is 0 in this case so the overall
crat_table->length is still correct.

Check if there were any entries before de-referencing sub_type_hdr which
may be pointing to out-of-bounds memory.

Fixes: b7b6c38529 ("drm/amdkfd: Calculate CPU VCRAT size dynamically (v2)")
Suggested-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-14 00:23:39 -05:00
Harish Kasiviswanathan 6cc980e3f5 drm/amdkfd: PCIe atomics required for gfx10
GFX10 CP firmware expects PCIe atomics support. Don't enumerate GFX10
devices on platforms (PCIe v2) that don't support PCIe atomics.

Currently, some of the applications like clinfo soft hangs on platforms
without PCIe atomics support.

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-17 16:43:14 -05:00
Colin Ian King b4bc9d95e6 drm/amdgpu: Fix spelling mistake "Heterogenous" -> "Heterogeneous"
There is a spelling mistake in a comment in the Kconfig. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-15 11:35:53 -05:00
Jiansong Chen 0d801007f9 drm/amdkfd: correct pipe offset calculation
Correct pipe offset calculation in is_pipe_enabled function,
it should be done in queues.

Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-10 16:41:49 -05:00
Felix Kuehling c897934da1 drm/amdkfd: Fix leak in dmabuf import
Release dmabuf reference before returning from kfd_ioctl_import_dmabuf.
amdgpu_amdkfd_gpuvm_import_dmabuf takes a reference to the underlying
GEM BO and doesn't keep the reference to the dmabuf wrapper.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-08 23:05:47 -05:00
Hanjun Guo c4cb773c70 drm/amdkfd: Put ACPI table after using it
The acpi_get_table() should be coupled with acpi_put_table() if
the mapped table is not used at runtime to release the table
mapping which can prevent the memory leak.

In kfd_create_crat_image_acpi(), crat_table is copied to pcrat_image,
and in kfd_create_vcrat_image_cpu(), the acpi_table is only used to
get the OEM information, so those two table mappings need to be released
after using it.

Fixes: 174de876d6 ("drm/amdkfd: Group up CRAT related functions")
Fixes: 520b8fb755 ("drm/amdkfd: Add topology support for CPUs")
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-13 17:29:46 -05:00
Hanjun Guo 1cb027950a drm/amdkfd: Move the ignore_crat check before the CRAT table get
If the ignore_crat is set to non-zero value, it's no point getting
the CRAT table, so just move the ignore_crat check before we get the
CRAT table.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-13 17:29:46 -05:00
Dave Airlie 5b8c596976 Merge tag 'amd-drm-next-5.11-2020-11-05' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-next-5.11-2020-11-05:

amdgpu:
- Add initial support for Vangogh
- Add support for Green Sardine
- Add initial support for Dimgrey Cavefish
- Scatter/Gather display support for Renoir
- Updates for Sienna Cichlid
- Updates for Navy Flounder
- SMU7 power improvements
- Modifier support for gfx9+
- CI BACO fixes
- Arcturus SMU fixes
- Lots of code cleanups
- DC fixes
- Kernel doc fixes
- Add more GPU HW client information to page fault error logging
- MPO clock tuning for RV
- FP fixes for DCN3 on ARM and PPC

radeon:
- Expose voltage via hwmon on Sumo APUs

amdkfd:
- Fix unique id handling
- Misc fixes

From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105222749.201798-1-alexander.deucher@amd.com
2020-11-10 17:48:47 +10:00
Kent Russell 9d17df77bc amdkfd: Check kvmalloc return before memcpy
If we can't kvmalloc the pcrat_image, then we shouldn't memcpy

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-02 15:33:33 -05:00
Kent Russell d95c368ab8 drm/amdkfd: Fix getting unique_id in topology
Since the unique_id is now obtained in amdgpu in smu_late_init,
topology misses getting the value during KFD device initialization.
To work around this, we use amdgpu_amdkfd_get_unique_id to get
the unique_id at read time. Due to this, we can remove unique_id from
the kfd_dev structure, since we only need it in the KFD node properties
struct

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-30 00:59:42 -04:00
Linus Torvalds fc03b2d6a9 drm fixes (round two) for 5.10-rc1
fbcon/fonts:
 - Two patches to prevent OOB access
 
 ttm:
 - fix for evicition value range check
 
 amdgpu:
 - Sienna Cichlid fixes
 - MST manager resource leak fix
 - GPU reset fix
 
 amdkfd:
 - Luxmark fix for Navi1x
 
 i915:
 - Tweak initial DPCD backlight.enabled value (Sean)
 - Initialize reserved MOCS indices (Ayaz)
 - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville)
 - Support parsing of oversize batches (Chris)
 - Delay execlists processing for TGL (Chris)
 - Use the active reference on the vma during error capture (Chris)
 - Widen CSB pointer (Chris)
 - Wait for CSB entries on TGL (Chris)
 - Fix unwind for scratch page allocation (Chris)
 - Exclude low patches of stolen memory (Chris)
 - Force VT'd workarounds when running as a guest OS (Chris)
 - Drop runtime-pm assert from vpgu io accessors (Chris)
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Merge tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm

Pull more drm fixes from Dave Airlie:
 "This should be the last round of things for rc1, a bunch of i915
  fixes, some amdgpu, more font OOB fixes and one ttm fix just found
  reading code:

  fbcon/fonts:
   - Two patches to prevent OOB access

  ttm:
   - fix for evicition value range check

  amdgpu:
   - Sienna Cichlid fixes
   - MST manager resource leak fix
   - GPU reset fix

  amdkfd:
   - Luxmark fix for Navi1x

  i915:
   - Tweak initial DPCD backlight.enabled value (Sean)
   - Initialize reserved MOCS indices (Ayaz)
   - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville)
   - Support parsing of oversize batches (Chris)
   - Delay execlists processing for TGL (Chris)
   - Use the active reference on the vma during error capture (Chris)
   - Widen CSB pointer (Chris)
   - Wait for CSB entries on TGL (Chris)
   - Fix unwind for scratch page allocation (Chris)
   - Exclude low patches of stolen memory (Chris)
   - Force VT'd workarounds when running as a guest OS (Chris)
   - Drop runtime-pm assert from vpgu io accessors (Chris)"

* tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm: (31 commits)
  drm/amdgpu: correct the cu and rb info for sienna cichlid
  drm/amd/pm: remove the average clock value in sysfs
  drm/amd/pm: fix pp_dpm_fclk
  Revert drm/amdgpu: disable sienna chichlid UMC RAS
  drm/amd/pm: fix pcie information for sienna cichlid
  drm/amdkfd: Use same SQ prefetch setting as amdgpu
  drm/amd/swsmu: correct wrong feature bit mapping
  drm/amd/psp: Fix sysfs: cannot create duplicate filename
  drm/amd/display: Avoid MST manager resource leak.
  drm/amd/display: Revert "drm/amd/display: Fix a list corruption"
  drm/amdgpu: update golden setting for sienna_cichlid
  drm/amd/swsmu: add missing feature map for sienna_cichlid
  drm/amdgpu: correct the gpu reset handling for job != NULL case
  drm/amdgpu: add rlc iram and dram firmware support
  drm/amdgpu: add function to program pbb mode for sienna cichlid
  drm/i915: Drop runtime-pm assert from vgpu io accessors
  drm/i915: Force VT'd workarounds when running as a guest OS
  drm/i915: Exclude low pages (128KiB) of stolen from use
  drm/i915/gt: Onion unwind for scratch page allocation failure
  drm/ttm: fix eviction valuable range check.
  ...
2020-10-23 13:56:34 -07:00
Jay Cornwall d56b1980d7 drm/amdkfd: Use same SQ prefetch setting as amdgpu
0 causes instruction fetch stall at cache line boundary under some
conditions on Navi10. A non-zero prefetch is the preferred default
in any case.

Fixes soft hang in Luxmark.

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2020-10-21 23:06:07 -04:00
Sumera Priyadarsini 86b6624ae2 drm/amdgpu: Return boolean types instead of integer values
Return statements for functions returning bool should use truth
and false instead of 1 and 0 respectively.

Modify cik_event_interrupt.c to return false instead of 0.

Issue found with Coccinelle.

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-21 16:17:08 -04:00
Jay Cornwall 9a81009eda drm/amdkfd: Use same SQ prefetch setting as amdgpu
0 causes instruction fetch stall at cache line boundary under some
conditions on Navi10. A non-zero prefetch is the preferred default
in any case.

Fixes soft hang in Luxmark.

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-21 16:14:06 -04:00
Linus Torvalds f9915b964c drm fixes for 5.10-rc1
i915:
 - Set all unused color plane offsets to ~0xfff again (Ville)
 - Fix TGL DKL PHY DP vswing handling (Ville)
 
 amdgpu:
 - DCN clang warning fix
 - eDP fix
 - BACO fix
 - Kernel documentation fixes
 - SMU7 mclk fix
 - VCN1 hw bug workaround
 
 amdkfd:
 - kvfree vs kfree fix
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Merge tag 'drm-next-2020-10-19' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Some fixes queued up already for i915 and amdgpu, I've also included
  the fix for the clang warning you've seen.

  i915:
   - set all unused color plane offsets to ~0xfff again (Ville)
   - fix TGL DKL PHY DP vswing handling (Ville)

  amdgpu:
   - DCN clang warning fix
   - eDP fix
   - BACO fix
   - kernel documentation fixes
   - SMU7 mclk fix
   - VCN1 hw bug workaround

  amdkfd:
   - kvfree vs kfree fix"

* tag 'drm-next-2020-10-19' of git://anongit.freedesktop.org/drm/drm:
  drm/amd/display: Fix incorrect dsc force enable logic
  drm/amdkfd: Use kvfree in destroy_crat_image
  drm/amdgpu: vcn and jpeg ring synchronization
  drm/amd/pm: increase mclk switch threshold to 200 us
  docs: amdgpu: fix a warning when building the documentation
  drm/amd/display: kernel-doc: document force_timing_sync
  drm/amdgpu/swsmu: init the baco mutex in early_init
  drm/amd/display: Fix module load hangs when connected to an eDP
  drm/i915: Set all unused color plane offsets to ~0xfff again
  drm/i915: Fix TGL DKL PHY DP vswing handling
2020-10-20 10:19:02 -07:00
Linus Torvalds 93b694d096 drm next for 5.10-rc1
New driver:
 Cadence MHDP8546 DisplayPort bridge driver
 
 core:
 - cross-driver scatterlist cleanups
 - devm_drm conversions
 - remove drm_dev_init
 - devm_drm_dev_alloc conversion
 
 ttm:
 - lots of refactoring and cleanups
 
 bridges:
 - chained bridge support in more drivers
 
 panel:
 - misc new panels
 
 scheduler:
 - cleanup priority levels
 
 displayport:
 - refactor i915 code into helpers for nouveau
 
 i915:
 - split into display and GT trees
 - WW locking refactoring in GEM
 - execbuf2 extension mechanism
 - syncobj timeline support
 - GEN 12 HOBL display powersaving
 - Rocket Lake display additions
 - Disable FBC on Tigerlake
 - Tigerlake Type-C + DP improvements
 - Hotplug interrupt refactoring
 
 amdgpu:
 - Sienna Cichlid updates
 - Navy Flounder updates
 - DCE6 (SI) support for DC
 - Plane rotation enabled
 - TMZ state info ioctl
 - PCIe DPC recovery support
 - DC interrupt handling refactor
 - OLED panel fixes
 
 amdkfd:
 - add SMI events for thermal throttling
 - SMI interface events ioctl update
 - process eviction counters
 
 radeon:
 - move to dma_ for allocations
 - expose sclk via sysfs
 
 msm:
 - DSI support for sm8150/sm8250
 - per-process GPU pagetable support
 - Displayport support
 
 mediatek:
 - move HDMI phy driver to PHY
 - convert mtk-dpi to bridge API
 - disable mt2701 tmds
 
 tegra:
 - bridge support
 
 exynos:
 - misc cleanups
 
 vc4:
 - dual display cleanups
 
 ast:
 - cleanups
 
 gma500:
 - conversion to GPIOd API
 
 hisilicon:
 - misc reworks
 
 ingenic:
 - clock handling and format improvements
 
 mcde:
 - DSI support
 
 mgag200:
 - desktop g200 support
 
 mxsfb:
 - i.MX7 + i.MX8M
 - alpha plane support
 
 panfrost:
 - devfreq support
 - amlogic SoC support
 
 ps8640:
 - EDID from eDP retrieval
 
 tidss:
 - AM65xx YUV workaround
 
 virtio:
 - virtio-gpu exported resources
 
 rcar-du:
 - R8A7742, R8A774E1 and R8A77961 support
 - YUV planar format fixes
 - non-visible plane handling
 - VSP device reference count fix
 - Kconfig fix to avoid displaying disabled options in .config
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Merge tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Not a major amount of change, the i915 trees got split into display
  and gt trees to better facilitate higher level review, and there's a
  major refactoring of i915 GEM locking to use more core kernel concepts
  (like ww-mutexes). msm gets per-process pagetables, older AMD SI cards
  get DC support, nouveau got a bump in displayport support with common
  code extraction from i915.

  Outside of drm this contains a couple of patches for hexint
  moduleparams which you've acked, and a virtio common code tree that
  you should also get via it's regular path.

  New driver:
   - Cadence MHDP8546 DisplayPort bridge driver

  core:
   - cross-driver scatterlist cleanups
   - devm_drm conversions
   - remove drm_dev_init
   - devm_drm_dev_alloc conversion

  ttm:
   - lots of refactoring and cleanups

  bridges:
   - chained bridge support in more drivers

  panel:
   - misc new panels

  scheduler:
   - cleanup priority levels

  displayport:
   - refactor i915 code into helpers for nouveau

  i915:
   - split into display and GT trees
   - WW locking refactoring in GEM
   - execbuf2 extension mechanism
   - syncobj timeline support
   - GEN 12 HOBL display powersaving
   - Rocket Lake display additions
   - Disable FBC on Tigerlake
   - Tigerlake Type-C + DP improvements
   - Hotplug interrupt refactoring

  amdgpu:
   - Sienna Cichlid updates
   - Navy Flounder updates
   - DCE6 (SI) support for DC
   - Plane rotation enabled
   - TMZ state info ioctl
   - PCIe DPC recovery support
   - DC interrupt handling refactor
   - OLED panel fixes

  amdkfd:
   - add SMI events for thermal throttling
   - SMI interface events ioctl update
   - process eviction counters

  radeon:
   - move to dma_ for allocations
   - expose sclk via sysfs

  msm:
   - DSI support for sm8150/sm8250
   - per-process GPU pagetable support
   - Displayport support

  mediatek:
   - move HDMI phy driver to PHY
   - convert mtk-dpi to bridge API
   - disable mt2701 tmds

  tegra:
   - bridge support

  exynos:
   - misc cleanups

  vc4:
   - dual display cleanups

  ast:
   - cleanups

  gma500:
   - conversion to GPIOd API

  hisilicon:
   - misc reworks

  ingenic:
   - clock handling and format improvements

  mcde:
   - DSI support

  mgag200:
   - desktop g200 support

  mxsfb:
   - i.MX7 + i.MX8M
   - alpha plane support

  panfrost:
   - devfreq support
   - amlogic SoC support

  ps8640:
   - EDID from eDP retrieval

  tidss:
   - AM65xx YUV workaround

  virtio:
   - virtio-gpu exported resources

  rcar-du:
   - R8A7742, R8A774E1 and R8A77961 support
   - YUV planar format fixes
   - non-visible plane handling
   - VSP device reference count fix
   - Kconfig fix to avoid displaying disabled options in .config"

* tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm: (1494 commits)
  drm/ingenic: Fix bad revert
  drm/amdgpu: Fix invalid number of character '{' in amdgpu_acpi_init
  drm/amdgpu: Remove warning for virtual_display
  drm/amdgpu: kfd_initialized can be static
  drm/amd/pm: setup APU dpm clock table in SMU HW initialization
  drm/amdgpu: prevent spurious warning
  drm/amdgpu/swsmu: fix ARC build errors
  drm/amd/display: Fix OPTC_DATA_FORMAT programming
  drm/amd/display: Don't allow pstate if no support in blank
  drm/panfrost: increase readl_relaxed_poll_timeout values
  MAINTAINERS: Update entry for st7703 driver after the rename
  Revert "gpu/drm: ingenic: Add option to mmap GEM buffers cached"
  drm/amd/display: HDMI remote sink need mode validation for Linux
  drm/amd/display: Change to correct unit on audio rate
  drm/amd/display: Avoid set zero in the requested clk
  drm/amdgpu: align frag_end to covered address space
  drm/amdgpu: fix NULL pointer dereference for Renoir
  drm/vmwgfx: fix regression in thp code due to ttm init refactor.
  drm/amdgpu/swsmu: add interrupt work handler for smu11 parts
  drm/amdgpu/swsmu: add interrupt work function
  ...
2020-10-15 10:46:16 -07:00
Kent Russell 8f4729e880 drm/amdkfd: Use kvfree in destroy_crat_image
Now that we use kvmalloc for the crat_image, we need to use kvfree when
we destroy this.

Fixes: d0e63b343e ("drm/amdkfd: Use kvmalloc instead of kmalloc for VCRAT")
Reported-by: Morris Zhang <shiwu.zhang@amd.clm>
Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-14 15:29:28 -04:00
Kent Russell 185b0d5a78 drm/amdkfd: Use kvfree in destroy_crat_image
Now that we use kvmalloc for the crat_image, we need to use kvfree when
we destroy this.

Fixes: d0e63b343e ("drm/amdkfd: Use kvmalloc instead of kmalloc for VCRAT")
Reported-by: Morris Zhang <shiwu.zhang@amd.clm>
Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-14 15:14:45 -04:00
Chengming Gui 8f72ce6421 drm/amdkfd: Add kfd2kgd_funcs for dimgrey_cavefish kfd support
Add KFD support.

Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-12 14:01:25 -04:00
Chengming Gui eb5a34d482 drm/amdkfd: Support dimgrey_cavefish KFD (v2)
Add KFD support for dimgrey cavefish.

v2: rebase (Alex)

Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-12 14:01:21 -04:00
Linus Torvalds ac74075e5d Initial support for sharing virtual addresses between the CPU and
devices which doesn't need pinning of pages for DMA anymore. Add support
 for the command submission to devices using new x86 instructions like
 ENQCMD{,S} and MOVDIR64B. In addition, add support for process address
 space identifiers (PASIDs) which are referenced by those command
 submission instructions along with the handling of the PASID state on
 context switch as another extended state. Work by Fenghua Yu, Ashok Raj,
 Yu-cheng Yu and Dave Jiang.
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Merge tag 'x86_pasid_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 PASID updates from Borislav Petkov:
 "Initial support for sharing virtual addresses between the CPU and
  devices which doesn't need pinning of pages for DMA anymore.

  Add support for the command submission to devices using new x86
  instructions like ENQCMD{,S} and MOVDIR64B. In addition, add support
  for process address space identifiers (PASIDs) which are referenced by
  those command submission instructions along with the handling of the
  PASID state on context switch as another extended state.

  Work by Fenghua Yu, Ashok Raj, Yu-cheng Yu and Dave Jiang"

* tag 'x86_pasid_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm: Add an enqcmds() wrapper for the ENQCMDS instruction
  x86/asm: Carve out a generic movdir64b() helper for general usage
  x86/mmu: Allocate/free a PASID
  x86/cpufeatures: Mark ENQCMD as disabled when configured out
  mm: Add a pasid member to struct mm_struct
  x86/msr-index: Define an IA32_PASID MSR
  x86/fpu/xstate: Add supervisor PASID state for ENQCMD
  x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions
  Documentation/x86: Add documentation for SVA (Shared Virtual Addressing)
  iommu/vt-d: Change flags type to unsigned int in binding mm
  drm, iommu: Change type of pasid to u32
2020-10-12 10:40:34 -07:00
Huang Rui 3a5e715de1 drm/amdkfd: add Van Gogh KFD support
This patch is to add GFX10 based APU Van Gogh KFD support. We will treat Van
Gogh as "dgpu" (bypass IOMMU v2).

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Yong Zhao <Yong.Zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-05 15:15:27 -04:00
Ramesh Errabolu f2fa07b39f drm/amd/amdkfd: Surface files in Sysfs to allow users to get number of
compute units that are in use.

[Why]
Allow user to know how many compute units (CU) are in use at any given
moment.

[How]
Surface files in Sysfs that allow user to determine the number of compute
units that are in use for a given process. One Sysfs file is used per
device.

Signed-off-by: Ramesh Errabolu <Ramesh.Errabolu@amd.com>
Reviewed-By: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-30 15:26:27 -04:00
Alex Deucher 9b498efae2 drm/amdgpu: store noretry parameter per driver instance
This will allow us to have different defaults per asic
in a future patch.

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-25 16:55:16 -04:00
Kent Russell d0e63b343e drm/amdkfd: Use kvmalloc instead of kmalloc for VCRAT
Since we're dynamically allocating the CPU VCRAT, use kvmalloc in case
the allocation size is huge.

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-22 12:27:03 -04:00
Philip Cox e8f58ee143 drm/amdkfd: Fix kfd init stack dump
amdkfd is dumping a stack during initialization.
kfd_procfs_add_sysfs_stats is being called twice.  This removes one of
them.

Fixes: 4327bed2ff ("drm/amdkfd: Add process eviction counters to sysfs")
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Philip Cox <Philip.Cox@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-22 12:25:22 -04:00
Mukul Joshi 59d7115dae drm/amdkfd: Move process doorbell allocation into kfd device
Move doorbell allocation for a process into kfd device and
allocate doorbell space in each PDD during process creation.
Currently, KFD manages its own doorbell space but for some
devices, amdgpu would allocate the complete doorbell
space instead of leaving a chunk of doorbell space for KFD to
manage. In a system with mix of such devices, KFD would need
to request process doorbell space based on the type of device,
either from amdgpu or from its own doorbell space.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-22 12:25:02 -04:00
Kent Russell b7b6c38529 drm/amdkfd: Calculate CPU VCRAT size dynamically (v2)
Instead of guessing at a sufficient size for the CPU VCRAT, base the
size on the number of online NUMA nodes.

v2: fix warning

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-22 12:25:01 -04:00
Felix Kuehling c7651b7358 drm/amdgpu: Fix handling of KFD initialization failures
Remember KFD module initializaton status in a global variable. Skip KFD
device probing when the module was not initialized. Other amdgpu_amdkfd
calls are then protected by the adev->kfd.dev check.

Also print a clear error message when KFD disables itself. Amdgpu
continues its initialization even when KFD failed.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-22 12:24:11 -04:00
Philip Cox 783a25f4c7 drm/amdkfd: Reduce eviction/restore message levels
Reduce the eviction and restore messages from INFO level to DEBUG level.

Signed-off-by: Philip Cox <Philip.Cox@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-17 21:22:17 -04:00
Philip Cox 4327bed2ff drm/amdkfd: Add process eviction counters to sysfs
Add per-process eviction counters to sysfs to keep track of
how many eviction events have happened for each process.

v2: rename the stats dir, and track all evictions per process, per device.
v3: Simplify the stats kobject handling and cleanup.
v4: more code cleanup

Signed-off-by: Philip Cox <Philip.Cox@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-17 21:22:17 -04:00
Philip Cox 8a491bb31b drm/amdkfd: Add some eveiction debugging code
Extending the module parameter debug_evictions to also print a stack
trace when the eviction code path is called.

Signed-off-by: Philip Cox <Philip.Cox@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-17 21:22:16 -04:00
Fenghua Yu c7b6bac9c7 drm, iommu: Change type of pasid to u32
PASID is defined as a few different types in iommu including "int",
"u32", and "unsigned int". To be consistent and to match with uapi
definitions, define PASID and its variations (e.g. max PASID) as "u32".
"u32" is also shorter and a little more explicit than "unsigned int".

No PASID type change in uapi although it defines PASID as __u64 in
some places.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lkml.kernel.org/r/1600187413-163670-2-git-send-email-fenghua.yu@intel.com
2020-09-17 19:21:16 +02:00
Dennis Li 087d764159 drm/amdkfd: fix a memory leak issue
In the resume stage of GPU recovery, start_cpsch will call pm_init
which set pm->allocated as false, cause the next pm_release_ib has
no chance to release ib memory.

Add pm_release_ib in stop_cpsch which will be called in the suspend
stage of GPU recovery.

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-15 18:16:04 -04:00
Dennis Li 66a5710bea drm/kfd: fix a system crash issue during GPU recovery
The crash log as the below:

[Thu Aug 20 23:18:14 2020] general protection fault: 0000 [#1] SMP NOPTI
[Thu Aug 20 23:18:14 2020] CPU: 152 PID: 1837 Comm: kworker/152:1 Tainted: G           OE     5.4.0-42-generic #46~18.04.1-Ubuntu
[Thu Aug 20 23:18:14 2020] Hardware name: GIGABYTE G482-Z53-YF/MZ52-G40-00, BIOS R12 05/13/2020
[Thu Aug 20 23:18:14 2020] Workqueue: events amdgpu_ras_do_recovery [amdgpu]
[Thu Aug 20 23:18:14 2020] RIP: 0010:evict_process_queues_cpsch+0xc9/0x130 [amdgpu]
[Thu Aug 20 23:18:14 2020] Code: 49 8d 4d 10 48 39 c8 75 21 eb 44 83 fa 03 74 36 80 78 72 00 74 0c 83 ab 68 01 00 00 01 41 c6 45 41 00 48 8b 00 48 39 c8 74 25 <80> 78 70 00 c6 40 6d 01 74 ee 8b 50 28 c6 40 70 00 83 ab 60 01 00
[Thu Aug 20 23:18:14 2020] RSP: 0018:ffffb29b52f6fc90 EFLAGS: 00010213
[Thu Aug 20 23:18:14 2020] RAX: 1c884edb0a118914 RBX: ffff8a0d45ff3c00 RCX: ffff8a2d83e41038
[Thu Aug 20 23:18:14 2020] RDX: 0000000000000000 RSI: 0000000000000082 RDI: ffff8a0e2e4178c0
[Thu Aug 20 23:18:14 2020] RBP: ffffb29b52f6fcb0 R08: 0000000000001b64 R09: 0000000000000004
[Thu Aug 20 23:18:14 2020] R10: ffffb29b52f6fb78 R11: 0000000000000001 R12: ffff8a0d45ff3d28
[Thu Aug 20 23:18:14 2020] R13: ffff8a2d83e41028 R14: 0000000000000000 R15: 0000000000000000
[Thu Aug 20 23:18:14 2020] FS:  0000000000000000(0000) GS:ffff8a0e2e400000(0000) knlGS:0000000000000000
[Thu Aug 20 23:18:14 2020] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Thu Aug 20 23:18:14 2020] CR2: 000055c783c0e6a8 CR3: 00000034a1284000 CR4: 0000000000340ee0
[Thu Aug 20 23:18:14 2020] Call Trace:
[Thu Aug 20 23:18:14 2020]  kfd_process_evict_queues+0x43/0xd0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kfd_suspend_all_processes+0x60/0xf0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kgd2kfd_suspend.part.7+0x43/0x50 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kgd2kfd_pre_reset+0x46/0x60 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_amdkfd_pre_reset+0x1a/0x20 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_device_gpu_recover+0x377/0xf90 [amdgpu]
[Thu Aug 20 23:18:14 2020]  ? amdgpu_ras_error_query+0x1b8/0x2a0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_ras_do_recovery+0x159/0x190 [amdgpu]
[Thu Aug 20 23:18:14 2020]  process_one_work+0x20f/0x400
[Thu Aug 20 23:18:14 2020]  worker_thread+0x34/0x410

When GPU hang, user process will fail to create a compute queue whose
struct object will be freed later, but driver wrongly add this queue to
queue list of the proccess. And then kfd_process_evict_queues will
access a freed memory, which cause a system crash.

v2:
The failure to execute_queues should probably not be reported to
the caller of create_queue, because the queue was already created.
Therefore change to ignore the return value from execute_queues.

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2020-09-15 18:15:28 -04:00
YueHaibing 2b3bbf2354 drm/amdkfd: Fix -Wunused-const-variable warning
If KFD_SUPPORT_IOMMU_V2 is not set, gcc warns:

drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_device.c:121:37: warning: ‘raven_device_info’ defined but not used [-Wunused-const-variable=]
 static const struct kfd_device_info raven_device_info = {
                                     ^~~~~~~~~~~~~~~~~

As Huang Rui suggested, Raven already has the fallback path,
so it should be out of IOMMU v2 flag.

Suggested-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-15 17:52:39 -04:00
Dennis Li edb084f487 drm/amdkfd: fix a memory leak issue
In the resume stage of GPU recovery, start_cpsch will call pm_init
which set pm->allocated as false, cause the next pm_release_ib has
no chance to release ib memory.

Add pm_release_ib in stop_cpsch which will be called in the suspend
stage of GPU recovery.

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-15 17:24:06 -04:00
Dennis Li a9a83a92d0 drm/kfd: fix a system crash issue during GPU recovery
The crash log as the below:

[Thu Aug 20 23:18:14 2020] general protection fault: 0000 [#1] SMP NOPTI
[Thu Aug 20 23:18:14 2020] CPU: 152 PID: 1837 Comm: kworker/152:1 Tainted: G           OE     5.4.0-42-generic #46~18.04.1-Ubuntu
[Thu Aug 20 23:18:14 2020] Hardware name: GIGABYTE G482-Z53-YF/MZ52-G40-00, BIOS R12 05/13/2020
[Thu Aug 20 23:18:14 2020] Workqueue: events amdgpu_ras_do_recovery [amdgpu]
[Thu Aug 20 23:18:14 2020] RIP: 0010:evict_process_queues_cpsch+0xc9/0x130 [amdgpu]
[Thu Aug 20 23:18:14 2020] Code: 49 8d 4d 10 48 39 c8 75 21 eb 44 83 fa 03 74 36 80 78 72 00 74 0c 83 ab 68 01 00 00 01 41 c6 45 41 00 48 8b 00 48 39 c8 74 25 <80> 78 70 00 c6 40 6d 01 74 ee 8b 50 28 c6 40 70 00 83 ab 60 01 00
[Thu Aug 20 23:18:14 2020] RSP: 0018:ffffb29b52f6fc90 EFLAGS: 00010213
[Thu Aug 20 23:18:14 2020] RAX: 1c884edb0a118914 RBX: ffff8a0d45ff3c00 RCX: ffff8a2d83e41038
[Thu Aug 20 23:18:14 2020] RDX: 0000000000000000 RSI: 0000000000000082 RDI: ffff8a0e2e4178c0
[Thu Aug 20 23:18:14 2020] RBP: ffffb29b52f6fcb0 R08: 0000000000001b64 R09: 0000000000000004
[Thu Aug 20 23:18:14 2020] R10: ffffb29b52f6fb78 R11: 0000000000000001 R12: ffff8a0d45ff3d28
[Thu Aug 20 23:18:14 2020] R13: ffff8a2d83e41028 R14: 0000000000000000 R15: 0000000000000000
[Thu Aug 20 23:18:14 2020] FS:  0000000000000000(0000) GS:ffff8a0e2e400000(0000) knlGS:0000000000000000
[Thu Aug 20 23:18:14 2020] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Thu Aug 20 23:18:14 2020] CR2: 000055c783c0e6a8 CR3: 00000034a1284000 CR4: 0000000000340ee0
[Thu Aug 20 23:18:14 2020] Call Trace:
[Thu Aug 20 23:18:14 2020]  kfd_process_evict_queues+0x43/0xd0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kfd_suspend_all_processes+0x60/0xf0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kgd2kfd_suspend.part.7+0x43/0x50 [amdgpu]
[Thu Aug 20 23:18:14 2020]  kgd2kfd_pre_reset+0x46/0x60 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_amdkfd_pre_reset+0x1a/0x20 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_device_gpu_recover+0x377/0xf90 [amdgpu]
[Thu Aug 20 23:18:14 2020]  ? amdgpu_ras_error_query+0x1b8/0x2a0 [amdgpu]
[Thu Aug 20 23:18:14 2020]  amdgpu_ras_do_recovery+0x159/0x190 [amdgpu]
[Thu Aug 20 23:18:14 2020]  process_one_work+0x20f/0x400
[Thu Aug 20 23:18:14 2020]  worker_thread+0x34/0x410

When GPU hang, user process will fail to create a compute queue whose
struct object will be freed later, but driver wrongly add this queue to
queue list of the proccess. And then kfd_process_evict_queues will
access a freed memory, which cause a system crash.

v2:
The failure to execute_queues should probably not be reported to
the caller of create_queue, because the queue was already created.
Therefore change to ignore the return value from execute_queues.

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-09-15 17:23:18 -04:00
Mukul Joshi 55977744f9 drm/amdkfd: Add GPU reset SMI event
Add support for reporting GPU reset events through SMI. KFD
would report both pre and post GPU reset events.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-31 14:40:03 -04:00
Stanley.Yang 5436ab94cd drm/amdkfd: fix set kfd node ras properties value
The ctx->features are new RAS implementation which
is only available for Vega20 and onwards, it is not
available for vega10, vega10 should follow legacy
ECC implementation.

Changed from V1:
    wrap function to initialize kfd node properties

Changed from V2:
    remove wrap function and SDMA SRAM ECC check

Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-26 16:40:19 -04:00
Felix Kuehling 332f6e1e98 drm/amdkfd: call amdgpu_amdkfd_get_hive_id directly
No need to use a function pointer because the implementation is not
ASIC-specific.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-26 16:40:18 -04:00
Felix Kuehling 817154c1a2 drm/amdkfd: call amdgpu_amdkfd_get_unique_id directly
No need to use a function pointer because the implementation is not
ASIC-specific. This fixes missing support due to a missing function
pointer on Arcturus.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-26 16:40:18 -04:00
Huang Rui 6127896f4a drm/amdkfd: implement the dGPU fallback path for apu (v6)
We still have a few iommu issues which need to address, so force raven
as "dgpu" path for the moment.

This is to add the fallback path to bypass IOMMU if IOMMU v2 is disabled
or ACPI CRAT table not correct.

v2: Use ignore_crat parameter to decide whether it will go with IOMMUv2.
v3: Align with existed thunk, don't change the way of raven, only renoir
    will use "dgpu" path by default.
v4: don't update global ignore_crat in the driver, and revise fallback
    function if CRAT is broken.
v5: refine acpi crat good but no iommu support case, and rename the
    title.
v6: fix the issue of dGPU initialized firstly, just modify the report
    value in the node_show().

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-26 16:40:17 -04:00
Mukul Joshi 818b032433 drm/amdkfd: sparse: Fix warning in reading SDMA counters
Add __user annotation to fix related sparse warning while reading
SDMA counters from userland.
Also, rework the read SDMA counters function by removing redundant
checks.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-24 12:22:32 -04:00
Mukul Joshi 5960e02290 drm/amdkfd: Initialize SDMA activity counter to 0
To prevent reporting erroneous SDMA usage, initialize SDMA
activity counter to 0 before using.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-18 18:19:57 -04:00
Christian König f1403342eb drm/amdgpu: revert "fix system hang issue during GPU reset"
The whole approach wasn't thought through till the end.

We already had a reset lock like this in the past and it caused the same problems like this one.

Completely revert the patch for now and add individual trylock protection to the hardware access functions as necessary.

This reverts commit df9c8d1aa2.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-14 16:22:40 -04:00
Jay Cornwall b60646a20c drm/amdkfd: Fix spurious debug exception on gfx10
s_barrier triggers a debug exception when issued with PRIV=1,
DEBUG_EN=1. This causes spurious notifications to rocm-gdb.

Clear MODE before issuing s_barrier and restore MODE afterwards
in the context restore handler.

Signed-off-by: Jay Cornwall <jay.cornwall@amd.com>
Tested-by: Laurent Morichetti <laurent.morichetti@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-10 17:26:51 -04:00
Felix Kuehling c342d7c579 Revert "drm/amdkfd: Unify gfx9/gfx10 context save area layouts"
This reverts commit 0a5baee415.

The change introduced a regression on some chips. Reverting until
a proper solution can be found.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-10 17:26:00 -04:00
Felix Kuehling 5218992251 Revert "drm/amdkfd: Fix spurious debug exception on gfx10"
This reverts commit ea368183ae.

Needed due to conflicts when reverting "drm/amdkfd: Unify gfx9/gfx10
context save area layouts".

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-10 17:24:51 -04:00
Mukul Joshi 522ec6e0ee drm/amdkfd: Replace bitmask with event idx in SMI event msg
Event bitmask is a 64-bit mask with only 1 bit set. Sending this
event bitmask in KFD SMI event message is both wasteful of memory
and potentially limiting to only 64 events. Instead send event
index in SMI event message.
Please note this change does not break the ABI for the two event
types defined so far. The new index is identical to the mask used
before.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Suggested-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-04 17:13:07 -04:00