Commit Graph

4432 Commits

Author SHA1 Message Date
Dave Airlie
1220a3e569 Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next
Misc fixes for 4.15.

* 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux:
  drm/amd/pp: fix dpm randomly failed on Vega10
  drm/amdgpu: set f_mapping on exported DMA-bufs
  drm/amdgpu: Properly allocate VM invalidate eng v2
  drm/amd/amdgpu: if visible VRAM allocation fail, fall back to invisible try again
  drm/amd/amdgpu: Fix wave mask in amdgpu_debugfs_wave_read() (v2)
  drm/amdgpu: make AMDGPU_VA_RESERVED_SIZE 64bit
  drm/amdgpu/gfx9: implement wave VGPR reading
  drm/amdgpu: Add common golden settings for GFX9
  drm/amd/powerplay: fix copy-n-paste error on vddci_buf index
  drm/amdgpu: Fix null pointer issue in amdgpu_cs_wait_any_fence
  drm/amdgpu: Remove check which is not valid for certain VBIOS
2017-11-20 06:14:14 +10:00
Rex Zhu
451cc55dd1 drm/amd/pp: fix dpm randomly failed on Vega10
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-15 14:03:45 -05:00
Christian König
4b277247b1 drm/amdgpu: set f_mapping on exported DMA-bufs
Otherwise we can't correctly CPU map TTM buffers.

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>
Cc: stable@vger.kernel.org
2017-11-14 11:35:43 -05:00
ozeng
c5066129af drm/amdgpu: Properly allocate VM invalidate eng v2
v1: Properly allocate TLB invalidation engine to avoid conflict.
v2: Added comments to codes

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian Konig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2017-11-14 11:35:08 -05:00
Dave Airlie
fc150d6bba Merge branch 'linus-4.14-rc4-acp-prereq' of git://people.freedesktop.org/~agd5f/linux into drm-next
This is a shared tree between drm and audio for some amd bits.

* 'linus-4.14-rc4-acp-prereq' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu Moving amdgpu asic types to a separate file
  ASoC: AMD: Added asic_type as ACP DMA driver platform data
  drm/amd/amdgpu: Added asic_type as ACP DMA driver platform data
2017-11-14 05:53:39 +10:00
Roger He
8e96e372bc drm/amd/amdgpu: if visible VRAM allocation fail, fall back to invisible try again
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-13 14:37:44 -05:00
Tom St Denis
0b968650cd drm/amd/amdgpu: Fix wave mask in amdgpu_debugfs_wave_read() (v2)
The bottom two bits of the simd value were being put into
the upper bits of the wave value which was likely working due
to the bits being ignored (or aliased).

Eitherway, now we mask it correctly.

(v2) Touch up using GENMASK_ULL to a couple of other functions too

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-13 14:37:05 -05:00
Christian König
ff4cd38943 drm/amdgpu: make AMDGPU_VA_RESERVED_SIZE 64bit
Even when it's a small handle it as 64bit value as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-13 14:36:40 -05:00
Nicolai Hähnle
822770ad49 drm/amdgpu/gfx9: implement wave VGPR reading
This is already hooked up to the "amdgpu_gpr" debugfs file used by
the umr userspace debugging tool.

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-13 14:35:21 -05:00
Ken Wang
f5eaffccf1 drm/amdgpu: Add common golden settings for GFX9
Signed-off-by: Ken Wang <Ken.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-13 14:34:21 -05:00
Colin Ian King
1ec9b0afbd drm/amd/powerplay: fix copy-n-paste error on vddci_buf index
The index to vddci_buf is using profile->ucElbVDDC_Num rather
than profile->ucElbVDDCI_Num; this looks like a copy-n-paste
error from previous code for the vddc_buf array and I'm pretty
sure this is incorrect. Fix this by using the correct variable.

Detected by CoverityScan, CID#1457172 ("Copy-paste error")

Fixes: 970d9804b0 ("drm/amd/powerplay: Add support functions for CI to ppatomctrl.c")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-09 18:12:19 -05:00
Emily Deng
cdadab89f8 drm/amdgpu: Fix null pointer issue in amdgpu_cs_wait_any_fence
The array[first] may be null when the fence has already been signaled.

BUG: SWDEV-136239

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-09 18:11:47 -05:00
Ken Wang
ab6613b7ea drm/amdgpu: Remove check which is not valid for certain VBIOS
Fixes vbios fetching on certain headless boards.

Signed-off-by: Ken Wang <Ken.Wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2017-11-09 18:10:42 -05:00
pding
cdd9a8b859 drm/amdgpu: use irq-safe lock for kiq->ring_lock
This lock is used during register accessing in SRIOV guest.
The register accessing could happen both in irq enabled and
irq disabled cases. Always use irq-safe lock.

Signed-off-by: Pixel Ding <Pixel.Ding@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-08 17:55:14 -05:00
Pixel Ding
dce1e131dd drm/amdgpu: bypass lru touch for KIQ ring submission
KIQ ring submission is used for register accessing on SRIOV
VF that could happen both in irq enabled and irq disabled cases.
Inversion lock could happen on adev->ring_lru_list_lock, while
this operation is useless and just adds overhead in this use
case.

Signed-off-by: Pixel Ding <Pixel.Ding@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-08 17:55:14 -05:00
Dan Carpenter
78aa02c713 drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories()
After commit ea09729c93 ("drm/amdgpu: rework page directory filling
v2") then it becomes a lot harder to verify that "r" is initialized.  My
static checker complains and so I've reviewed the code.  It does look
like it might be buggy... Anyway, it doesn't hurt to set "r" to zero
at the start.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2017-11-08 17:55:04 -05:00
Dan Carpenter
40a9960b04 drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs()
We shifted some code around in commit 9cca0b8e5d ("drm/amdgpu: move
amdgpu_cs_sysvm_access_required into find_mapping") and now my static
checker complains that "r" might not be initialized at the end of the
function.  I've reviewed the code, and that seems possible, but it's
also possible I may have missed something.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2017-11-08 17:54:59 -05:00
Nicolas Iooss
0d1da3c152 drm/amd/powerplay: initialize a variable before using it
Function vega10_apply_state_adjust_rules() only initializes
stable_pstate_sclk_dpm_percentage when
data->registry_data.stable_pstate_sclk_dpm_percentage is not between 1
and 100. The variable is then used to compute stable_pstate_sclk, which
therefore uses an uninitialized value.

Fix this by initializing stable_pstate_sclk_dpm_percentage to
data->registry_data.stable_pstate_sclk_dpm_percentage.

This issue has been found while building the kernel with clang. The
compiler reported a -Wsometimes-uninitialized warning.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Fixes: f83a999164 ("drm/amd/powerplay: add Vega10 powerplay support (v5)")
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-07 16:40:48 -05:00
Evan Quan
1d864b82a2 drm/amd/powerplay: suppress KASAN out of bounds warning in vega10_populate_all_memory_levels
Signed-off-by: Evan Quan <evan.quan@amd.com>
Tested-and-Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-07 16:40:26 -05:00
Roger He
7da2e3e09e drm/amd/amdgpu: fix evicted VRAM bo adjudgement condition
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-07 16:39:39 -05:00
Akshu Agrawal
37c5f2c99a drm/amd/amdgpu: Enabling ACP clock in hw_init (v2)
Enabling of ACP in hw_init does away with requirement of order
of probe on designware_i2s and acp dma driver. designware_i2s
reads i2s registers and this use to fail if acp dma driver was not probed
prior to it.

BUG=🅱️62103837
TEST=modprobe snd-soc-acp-pcm
modprobe snd-soc-acp-rt5645-mach
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: acprt5650 [acprt5650], device 0: RT5645_AIF1 rt5645-aif1-0 []
  Subdevices: 1/1
    Subdevice #0: subdevice #0

v2: use proper device in dev_err to fix warnings (Alex)

Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-on: https://chromium-review.googlesource.com/670207
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/676628
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-03 15:44:46 -04:00
Arnd Bergmann
e477e940da drm/amdgpu/virt: don't dereference undefined 'module' struct
Accessing the THIS_MODULE directly is only possible when modules
are enabled, otherwise we get a build failure:

drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c: In function 'amdgpu_virt_init_data_exchange':
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:331:20: error: dereferencing pointer to incomplete type 'struct module'

Further, THIS_MODULE is NULL when the driver is built-in, so the
code would likely cause a NULL pointer dereference.

This adds an #ifdef check to avoid the compile-time error, plus
a NULL pointer check before dereferencing THIS_MODULE. It might
be better to find a way to avoid using the module version
altogether.

Fixes: 2dc8f81e4f ("drm/amdgpu: SR-IOV data exchange between PF&VF")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-By: Xiangliang Yu <Xiangliang.Yu@amd.com>
2017-11-03 09:42:28 -04:00
Dave Airlie
9ad472e337 Merge tag 'drm-amdkfd-next-2017-11-02' of git://people.freedesktop.org/~gabbayo/linux into drm-next
- Usermode Events
The current events code implemented some data structures (waitqueue, fifo)
that were already implemented in the kernel. The patches below addresses
this issue by replacing them with the standard kernel implementation.
In addition, they simplify allocation of events IDs and memory for the events.

The patches also increase the maximum number of events while maintaining
compatibility with the older userspace library.

- Remove radeon support
Because Kaveri is fully supported in amdgpu and because current and future
versions of userspace libraries will only support amdgpu, we removed radeon
support from kfd. Current users can move to amdgpu while using the same
userspace libraries.

- Various bug fixes and cleanups

* tag 'drm-amdkfd-next-2017-11-02' of git://people.freedesktop.org/~gabbayo/linux: (26 commits)
  drm/amdkfd: Minor cleanups
  drm/amdkfd: Update queue_count before mapping queues
  drm/amdkfd: Cleanup DQM ASIC-specific ops
  drm/amdkfd: Register/Deregister process on qpd resolution
  drm/amdkfd: Fix debug unregister procedure on process termination
  drm/amdkfd: Avoid calling amd_iommu_unbind_pasid() when suspending
  drm/amdkfd: Disable CP/SDMA ring/doorbell in MQD
  drm/amdkfd: Clean up the data structure in kfd_process
  drm/radeon: deprecate and remove KFD interface
  drm/amdkfd: use a high priority workqueue for IH work
  drm/amdkfd: wait only for IH work on IH exit
  drm/amdkfd: increase IH num entries to 8192
  drm/amdkfd: use standard kernel kfifo for IH
  drm/amdkfd: increase limit of signal events to 4096 per process
  drm/amdkfd: Make event limit dependent on user mode mapping size
  drm/amdkfd: Use IH context ID for signal lookup
  drm/amdkfd: Simplify event ID and signal slot management
  drm/amdkfd: Simplify events page allocator
  drm/amdkfd: Use wait_queue_t to implement event waiting
  drm/amdkfd: remove redundant kfd_event_waiter.input_index
  ...
2017-11-03 05:12:24 +10:00
Dave Airlie
85f6e0f63e Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next
Some amdgpu/ttm fixes.

* 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux:
  drm/amd/powerplay: wrong control mode cause the fan spins faster unnecessarily
  drm/amd/powerplay: fix memory leak of hardcoded pptable
  drm/amdgpu:add fw-vram-usage for atomfirmware
  drm/radeon: fix atombios on big endian
  drm/ttm:fix memory leak due to individualize
  drm/amdgpu: fix error handling in amdgpu_bo_do_create
  drm/ttm: once more fix ttm_buffer_object_transfer
  drm/amd/powerplay: change ASIC temperature reading on Vega10
2017-11-03 05:10:37 +10:00
Evan Quan
710931c2be drm/amd/powerplay: wrong control mode cause the fan spins faster unnecessarily
The fan control mode can either be FDO_PWM_MODE_STATIC or FDO_PWM_MODE_STATIC_RPM.
Setting it as AMD_FAN_CTRL_AUTO will cause the fan spin faster wrongly.

This can be reproduced by:
'# cat /sys/class/hwmon/hwmon0/pwm1
   38
'# cat /sys/class/hwmon/hwmon0/pwm1_enable
   2
'# echo "2" > /sys/class/hwmon/hwmon0/pwm1_enable
'# cat /sys/class/hwmon/hwmon0/pwm1
   122
The fan speed get faster wrongly even with its original mode echo back.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2017-11-01 23:31:13 -04:00
Eric Huang
7b38a49d75 drm/amd/powerplay: fix memory leak of hardcoded pptable
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-01 23:31:13 -04:00
Monk Liu
24738d7c87 drm/amdgpu:add fw-vram-usage for atomfirmware
otherwise PF & VF exchange is broken

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-11-01 23:31:12 -04:00
Dave Airlie
7a88cbd8d6 Linux 4.14-rc7
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Backmerge tag 'v4.14-rc7' into drm-next

Linux 4.14-rc7

Requested by Ben Skeggs for nouveau to avoid major conflicts,
and things were getting a bit conflicty already, esp around amdgpu
reverts.
2017-11-02 12:40:41 +10:00
Felix Kuehling
894a8293aa drm/amdkfd: Minor cleanups
These were missed previously when rebasing changes for upstreaming.

v2: Remove redundant sched_policy conditions

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-11-01 19:21:33 -04:00
Felix Kuehling
096d1a3efc drm/amdkfd: Update queue_count before mapping queues
map_queues_cpsch uses the queue_count to decide whether to upload
a new runlist. So update the counter before calling it.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-11-01 19:21:32 -04:00
Yong Zhao
bfd5e378a9 drm/amdkfd: Cleanup DQM ASIC-specific ops
Remove empty initialize function.

Rename register_process to update_qpd to avoid confusion with the
non-ASIC-specific register_process.

Shorten ops_asic_specific to asic_ops.

Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-11-01 19:21:31 -04:00
Ben Goz
5a29ad6b9e drm/amdkfd: Register/Deregister process on qpd resolution
Process registration needs to happen on each device. So use per-device
queue lists to determine when to register/deregister the process.

Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-11-01 19:21:30 -04:00
Yair Shachar
062c5672d5 drm/amdkfd: Fix debug unregister procedure on process termination
Take the dbgmgr lock and unregister before destroying the debug manager.
Do this before destroying the queues.

v2: Correct locking order in kfd_ioctl_dbg_register to ake sure the
process mutex and dbgmgr mutex are always taken in the same order.

Signed-off-by: Yair Shachar <yair.shachar@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-11-01 19:21:29 -04:00
Yong Zhao
e2a8e99964 drm/amdkfd: Avoid calling amd_iommu_unbind_pasid() when suspending
When kfd suspending on APU, we do not need to call
amd_iommu_unbind_pasid(), because pasid will be unbound automatically
when power goes off.

On the other hand, calling amd_iommu_unbind_pasid() will trigger
kfd_process_iommu_unbind_callback() if the process is not terminating.
By design, kfd_process_iommu_unbind_callback() should only be called
for process terminating. So we would rather not to call
amd_iommu_unbind_pasid() when suspending.

Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-11-01 19:21:28 -04:00
Jay Cornwall
bba9662db7 drm/amdkfd: Disable CP/SDMA ring/doorbell in MQD
The MQD represents an inactive context and should not have ring or
doorbell enable bits set. Doing so interferes with HWS which streams
the MQD onto the HQD. If enable bits are set this activates the ring
or doorbell before the HQD is fully configured.

Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-11-01 19:21:27 -04:00
Yong Zhao
ab40cba303 drm/amdkfd: Clean up the data structure in kfd_process
A list of per-process queues is maintained in the
kfd_process_queue_manager, so the queues array in kfd_process is
redundant and in fact unused.

Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-11-01 19:21:26 -04:00
Roman Kapl
4f626a4ac8 drm/radeon: fix atombios on big endian
The function for byteswapping the data send to/from atombios was buggy for
num_bytes not divisible by four. The function must be aware of the fact
that after byte-swapping the u32 units, valid bytes might end up after the
num_bytes boundary.

This patch was tested on kernel 3.12 and allowed us to sucesfully use
DisplayPort on and Radeon SI card. Namely it fixed the link training and
EDID readout.

The function is patched both in radeon and amd drivers, since the functions
and the fixes are identical.

Signed-off-by: Roman Kapl <rka@sysgo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2017-10-31 18:24:59 -04:00
Christian König
a695e43712 drm/amdgpu: fix error handling in amdgpu_bo_do_create
The bo structure is freed up in case of an error, so we can't do any
accounting if that happens.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-10-31 17:54:13 -04:00
Christian König
f4fa88ab28 drm/radeon: deprecate and remove KFD interface
To quote Felix: "For testing KV with current user mode stack, please use
amdgpu. I don't expect this to work with radeon and I'm not planning to
spend any effort on making radeon work with a current user mode stack."

Only compile tested, but should be straight forward.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-30 14:16:21 +01:00
Andres Rodriguez
48e876a20e drm/amdkfd: use a high priority workqueue for IH work
In systems under heavy load the IH work may experience significant
scheduling delays.

Under load + system workqueue:
    Max Latency: 7.023695 ms
    Avg Latency: 0.263994 ms

Under load + high priority workqueue:
    Max Latency: 1.162568 ms
    Avg Latency: 0.163213 ms

Further work is required to measure the impact of per-cpu settings on IH
performance.

Signed-off-by: Andres Rodriguez <andres.rodriguez@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:34 -04:00
Andres Rodriguez
0f875e3f3e drm/amdkfd: wait only for IH work on IH exit
We don't need to wait for all work to complete in the IH exit function.
We only need to make sure the interrupt_work has finished executing to
guarantee that ih_kfifo is no longer in use.

Signed-off-by: Andres Rodriguez <andres.rodriguez@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:33 -04:00
Andres Rodriguez
27232055b1 drm/amdkfd: increase IH num entries to 8192
A larger buffer will let us accommodate applications with a large amount
of semi-simultaneous event signals.

Signed-off-by: Andres Rodriguez <andres.rodriguez@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:32 -04:00
Andres Rodriguez
04ad47bd14 drm/amdkfd: use standard kernel kfifo for IH
Replace our implementation of a lockless ring buffer with the standard
linux kernel kfifo.

We shouldn't maintain our own version of a standard data structure.

Signed-off-by: Andres Rodriguez <andres.rodriguez@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:31 -04:00
Felix Kuehling
b9a5d0a5db drm/amdkfd: Make event limit dependent on user mode mapping size
This allows increasing the KFD_SIGNAL_EVENT_LIMIT in kfd_ioctl.h
without breaking processes built with older kfd_ioctl.h versions.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:29 -04:00
Felix Kuehling
3f04f96148 drm/amdkfd: Use IH context ID for signal lookup
This speeds up signal lookup when the IH ring entry includes a
valid context ID or partial context ID. Only if the context ID is
found to be invalid, fall back to an exhaustive search of all
signaled events.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:28 -04:00
Felix Kuehling
482f07775c drm/amdkfd: Simplify event ID and signal slot management
Signal slots are identical to event IDs.

Replace the used_slot_bitmap and events hash table with an IDR to
allocate and lookup event IDs and signal slots more efficiently.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:27 -04:00
Felix Kuehling
50cb7dd94c drm/amdkfd: Simplify events page allocator
The first event page is always big enough to handle all events.
Handling of multiple events pages is not supported by user mode, and
not necessary.

Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:26 -04:00
Felix Kuehling
74e4071665 drm/amdkfd: Use wait_queue_t to implement event waiting
Use standard wait queues for waiting and waking up waiting threads
instead of inventing our own. We still have our own wait loop
because the HSA event semantics require the ability to have one
thread waiting on multiple wait queues (events) at the same time.

Signed-off-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:25 -04:00
Felix Kuehling
ebf947fe93 drm/amdkfd: remove redundant kfd_event_waiter.input_index
This always identical with the index of the event_waiter in the array.
No need to store it in the waiter record.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:24 -04:00
Felix Kuehling
fe528c13ac drm/amdkfd: Fix event destruction with pending waiters
When an event with pending waiters is destroyed, those waiters may
end up sleeping forever unless they are notified and woken up.
Implement the notification by clearing the waiter->event pointer,
which becomes invalid anyway, when the event is freed, and waking
up the waiting tasks.

Waiters on an event that's destroyed return failure.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-10-27 19:35:23 -04:00