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Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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detect() call
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Remove the function radeon_bo_fbdev_mmap() that is not used anywhere.
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Remove the function radeon_fbdev_total_size() that is not used anywhere.
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Remove the function radeon_best_encoder() that is not used anywhere.
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Working now with Oleg's last round of fixes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Added temperature values to SMC payload.
Fan mode check moved check to proper place.
Signed-off-by: Oleg Chernovskiy <algonkvel@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This adds a possibility to control fan on SI parts
via exported hwmon variables. Note that automatic
ucode fan management pauses if you choose to enable
manual fan control. Use with caution!
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This adds a possibility to control fan on CI parts
via exported hwmon variables. Note that automatic
ucode fan management pauses if you choose to enable
manual fan control. Use with caution!
v2: agd5f: fix formatting, squash in:
minor fix for pwm1_enable exposed value
Track smc control in addition to fan mode
This fixes pwm1_enable being constantly set
to 1 because of enabled smc control
also handle the case where smc fan control is disabled.
Signed-off-by: Oleg Chernovskiy <algonkvel@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This adds percent-based fan control. Attributes (I hope) follow the
sysfs-interface specification:
* pwm1 - fan speed query/manage
* pwm1_max, pwm1_min - min/max values for fan pwm (constant)
* pwm1_enable - fan control query/manage (enable/disable)
(There is no rpm-based control for now)
v2: agd5f: fix formatting
Signed-off-by: Oleg Chernovskiy <algonkvel@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Adds 4 callbacks for managing fan state/speed
* fan_ctrl_set_mode - manages fan control mode (nonzero == manual)
* fan_ctrl_get_mode - queries fan control mode
* set_fan_speed_percent - manages fan speed as percentage value
* get_fan_speed_percent - queries fan speed as percentage value
Signed-off-by: Oleg Chernovskiy <algonkvel@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Add the necessary set of commands to support OpenGL
indirect draw calls on evergreen/cayman devices that
do not have VM.
v2: agd5f: fix warning on 32-bit
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Backmerge Linus tree after rc5 + drm-fixes went in.
There were a few amdkfd conflicts I wanted to avoid,
and Ben requested this for nouveau also.
Conflicts:
drivers/gpu/drm/amd/amdkfd/Makefile
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c
drivers/gpu/drm/amd/amdkfd/kfd_priv.h
drivers/gpu/drm/amd/include/kgd_kfd_interface.h
drivers/gpu/drm/i915/intel_runtime_pm.c
drivers/gpu/drm/radeon/radeon_kfd.c
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git://git.linaro.org/people/benjamin.gaignard/kernel into drm-next
This patch enable the last big hardware feature of my driver: the
connector for panel.
Like for HMDI and HDA, Digital Video Out (DVO) create brige, encoder
and connector
drm objects.
* 'drm-sti-next-add-dvo' of git://git.linaro.org/people/benjamin.gaignard/kernel:
drm: sti: add DVO output connector
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into drm-next
Add atmel HLCDC driver.
* tag 'atmel-hlcdc-drm-3.20' of https://github.com/bbrezillon/linux-at91:
drm: add DT bindings documentation for atmel-hlcdc-dc driver
drm: add Atmel HLCDC Display Controller support
drm: panel: simple-panel: add bus format information for foxlink panel
drm: panel: simple-panel: add support for bus_format retrieval
drm: add bus_formats and num_bus_formats fields to drm_display_info
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The Atmel HLCDC (HLCD Controller) IP available on some Atmel SoCs (i.e.
at91sam9n12, at91sam9x5 family or sama5d3 family) provides a display
controller device.
This display controller supports at least one primary plane and might
provide several overlays and an hardware cursor depending on the IP
version.
At the moment, this driver only implements an RGB connector to interface
with LCD panels, but support for other kind of external devices might be
added later.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Tested-by: Anthony Harivel <anthony.harivel@emtrion.de>
Tested-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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Foxlink's fl500wvr00-a0t supports RGB888 format.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Thierry Reding <treding@nvidia.com>
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Provide a way to specify panel requirement in terms of supported media bus
format (particularly useful for panels connected to an RGB or LVDS bus).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Thierry Reding <treding@nvidia.com>
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Add bus_formats and num_bus_formats fields and
drm_display_info_set_bus_formats helper function to specify the bus
formats supported by a given display.
This information can be used by display controller drivers to configure
the output interface appropriately (i.e. RGB565, RGB666 or RGB888 on raw
RGB or LVDS busses).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Thierry Reding <treding@nvidia.com>
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git://git.pengutronix.de/git/pza/linux into drm-next
imx-drm mode fixup support, imx-hdmi bridge conversion and imx-drm cleanup
- Implement mode_fixup for a DI vertical timing limitation
- Use generic DRM OF helpers in DRM core
- Convert imx-hdmi to dw_hdmi drm_bridge and add rockchip
driver
- Add DC use counter to fix multi-display support
- Simplify handling of DI clock flags
- A few small fixes and cleanup
* tag 'imx-drm-next-2015-01-09' of git://git.pengutronix.de/git/pza/linux: (26 commits)
imx-drm: core: handling of DI clock flags to ipu_crtc_mode_set()
gpu: ipu-di: Switch to DIV_ROUND_CLOSEST for DI clock divider calc
gpu: ipu-v3: Use videomode in struct ipu_di_signal_cfg
imx-drm: encoder prepare/mode_set must use adjusted mode
imx-drm: ipuv3-crtc: Implement mode_fixup
drm_modes: add drm_display_mode_to_videomode
gpu: ipu-di: remove some non-functional code
gpu: ipu-di: Add ipu_di_adjust_videomode()
drm: rockchip: export functions needed by rockchip dw_hdmi bridge driver
drm: bridge/dw_hdmi: request interrupt only after initializing the mutes
drm: bridge/dw_hdmi: add rockchip rk3288 support
dt-bindings: Add documentation for rockchip dw hdmi
drm: bridge/dw_hdmi: add function dw_hdmi_phy_enable_spare
drm: bridge/dw_hdmi: clear i2cmphy_stat0 reg in hdmi_phy_wait_i2c_done
drm: bridge/dw_hdmi: add mode_valid support
drm: bridge/dw_hdmi: add support for multi-byte register width access
dt-bindings: add document for dw_hdmi
drm: imx: imx-hdmi: move imx-hdmi to bridge/dw_hdmi
drm: imx: imx-hdmi: split phy configuration to platform driver
drm: imx: imx-hdmi: convert imx-hdmi to drm_bridge mode
...
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* 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev:
drm: rcar-du: Implement support for interlaced modes
drm: rcar-du: Clamp DPMS states to on and off
drm: rcar-du: Enable hotplug detection on HDMI connector
drm: rcar-du: Output HSYNC instead of CSYNC
drm: rcar-du: Add support for external pixel clock
drm: rcar-du: Refactor DEFR8 feature
drm: rcar-du: Remove LVDS and HDMI encoders chaining restriction
drm: rcar-du: Configure pitch for chroma plane of multiplanar formats
drm: rcar-du: Don't fail probe in case of partial encoder init error
drm: adv7511: Remove interlaced mode check
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git://people.freedesktop.org/~gabbayo/linux into drm-next
- Add support for SDMA usermode queues
- Replace logic of sub-allocating from GART buffer in amdkfd. Instead
of using radeon_sa module, use a new module that is more suited for
this purpose
- Add the number of watch points to amdkfd topology
- Split a function that did two things into two seperate functions.
* tag 'drm-amdkfd-next-2015-01-09' of git://people.freedesktop.org/~gabbayo/linux:
drm/amd: Remove old radeon_sa funcs from kfd-->kgd interface
drm/radeon: Remove old radeon_sa usage from kfd-->kgd interface
drm/amdkfd: Using new gtt sa in amdkfd
drm/amdkfd: Allocate gart memory using new interface
drm/amdkfd: Fixed calculation of gart buffer size
drm/amdkfd: Add kfd gtt sub-allocator functions
drm/amdkfd: Add gtt sa related data to kfd_dev struct
drm/radeon: Impl. new gtt allocate/free functions
drm/amd: Add new kfd-->kgd interface for gart usage
drm/radeon: Enable sdma preemption
drm/amdkfd: Pass queue type to pqm_create_queue()
drm/amdkfd: Identify SDMA queue in create queue ioctl
drm/amdkfd: Add SDMA user-mode queues support to QCM
drm/amdkfd: Add SDMA mqd support
drm/radeon: Implement SDMA interface functions
drm/amd: Add SDMA functions to kfd-->kgd interface
drm/amdkfd: Process-device data creation and lookup split
drm/amdkfd: Add number of watch points to topology
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git://people.freedesktop.org/~gabbayo/linux into drm-fixes
- Remove the interrupt SW ring buffer impl. as it is not used by any module
in amdkfd.
- Fix a sparse warning
* tag 'drm-amdkfd-fixes-2015-01-13' of git://people.freedesktop.org/~gabbayo/linux:
drm/amdkfd: Fix sparse warning (different address space)
drm/amdkfd: Drop interrupt SW ring buffer
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git://anongit.freedesktop.org/drm-intel into drm-fixes
misc i915 fixes
* tag 'drm-intel-fixes-2015-01-15' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Fix mutex->owner inspection race under DEBUG_MUTEXES
drm/i915: Ban Haswell from using RCS flips
drm/i915: vlv: sanitize RPS interrupt mask during GPU idling
drm/i915: fix HW lockup due to missing RPS IRQ workaround on GEN6
drm/i915: gen9: fix RPS interrupt routing to CPU vs. GT
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There are still some places in the fb helper that need to avoid
sleeping in panic context. Here's an example:
[ 65.615496] bad: scheduling from the idle thread!
[ 65.620747] CPU: 92 PID: 0 Comm: swapper/92 Tainted: G M E 3.18.0-rc4-7-default+ #20
[ 65.630364] Hardware name: Intel Corporation BRICKLAND/BRICKLAND, BIOS
BRHSXSD1.86B.0056.R01.1409242327 09/24/2014
[ 65.641923] ffff88087f693d80 ffff88087f689878 ffffffff81566db9 0000000000000000
[ 65.650226] ffff88087f693d80 ffff88087f689898 ffffffff810871ff ffff88046eb3e0d0
[ 65.658527] ffff88087f693d80 ffff88087f6898c8 ffffffff8107c1fa 000000017f6898b8
[ 65.666830] Call Trace:
[ 65.669557] <#MC> [<ffffffff81566db9>] dump_stack+0x46/0x58
[ 65.675994] [<ffffffff810871ff>] dequeue_task_idle+0x2f/0x40
[ 65.682412] [<ffffffff8107c1fa>] dequeue_task+0x5a/0x80
[ 65.688345] [<ffffffff810804f3>] deactivate_task+0x23/0x30
[ 65.694569] [<ffffffff81569050>] __schedule+0x580/0x7f0
[ 65.700502] [<ffffffff81569739>] schedule_preempt_disabled+0x29/0x70
[ 65.707696] [<ffffffff8156abb6>] __ww_mutex_lock_slowpath+0xb8/0x162
[ 65.714891] [<ffffffff8156acb3>] __ww_mutex_lock+0x53/0x85
[ 65.721125] [<ffffffffa00b3a5d>] drm_modeset_lock+0x3d/0x110 [drm]
[ 65.728132] [<ffffffffa00b3c2a>] __drm_modeset_lock_all+0x8a/0x120 [drm]
[ 65.735721] [<ffffffffa00b3cd0>] drm_modeset_lock_all+0x10/0x30 [drm]
[ 65.743015] [<ffffffffa01af8bf>] drm_fb_helper_pan_display+0x2f/0xf0 [drm_kms_helper]
[ 65.751857] [<ffffffff8132bd21>] fb_pan_display+0xd1/0x1a0
[ 65.758081] [<ffffffff81326010>] bit_update_start+0x20/0x50
[ 65.764400] [<ffffffff813259f2>] fbcon_switch+0x3a2/0x550
[ 65.770528] [<ffffffff813a01c9>] redraw_screen+0x189/0x240
[ 65.776750] [<ffffffff81322f8a>] fbcon_blank+0x20a/0x2d0
[ 65.782778] [<ffffffff8137d359>] ? erst_writer+0x209/0x330
[ 65.789002] [<ffffffff810ba2f3>] ? internal_add_timer+0x63/0x80
[ 65.795710] [<ffffffff810bc137>] ? mod_timer+0x127/0x1e0
[ 65.801740] [<ffffffff813a0cd8>] do_unblank_screen+0xa8/0x1d0
[ 65.808255] [<ffffffff813a0e10>] unblank_screen+0x10/0x20
[ 65.814381] [<ffffffff812ca0d9>] bust_spinlocks+0x19/0x40
[ 65.820508] [<ffffffff81561ca7>] panic+0x106/0x1f5
[ 65.825955] [<ffffffff8102336c>] mce_panic+0x2ac/0x2e0
[ 65.831789] [<ffffffff812c796a>] ? delay_tsc+0x4a/0x80
[ 65.837625] [<ffffffff81024e1f>] do_machine_check+0xbaf/0xbf0
[ 65.844138] [<ffffffff813365d7>] ? intel_idle+0xc7/0x150
[ 65.850166] [<ffffffff8156f03f>] machine_check+0x1f/0x30
[ 65.856195] [<ffffffff813365d7>] ? intel_idle+0xc7/0x150
[ 65.862222] <<EOE>> [<ffffffff814283d5>] cpuidle_enter_state+0x55/0x170
[ 65.869823] [<ffffffff814285a7>] cpuidle_enter+0x17/0x20
[ 65.875852] [<ffffffff81097b08>] cpu_startup_entry+0x2d8/0x370
[ 65.882467] [<ffffffff8102fe29>] start_secondary+0x159/0x180
There's __drm_modeset_lock_all() which Daniel Vetter introduced for this
purpose. We can leverage that without reinventing anything. This patch
works with the latest kernel.
Reviewed-by: Rob Clark <robdclark@gmail.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Rui Wang <rui.y.wang@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
This pull request includes below fixups,
- Remove duplicated machine checking.
. It seems that this code was added when you merged 'v3.18-rc7' into
drm-next. commit id : e8115e79aa62b6ebdb3e8e61ca4092cc32938afc
- Fix hdmiphy reset.
. Exynos hdmi has two interfaces to control hdmyphy, one is I2C, other
is APB bus - memory mapped I/O. So this patch makes hdmiphy reset
to be done according to interfaces, I2C or APB bus.
- And add some exception codes.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: fix warning of vblank reference count
drm/exynos: remove unnecessary runtime pm operations
drm/exynos: fix reset codes for memory mapped hdmi phy
drm/exynos: remove the redundant machine checking code
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Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Prevented re-enabling the vblank interrupt by drm_vblank_off and
drm_vblank_get from mixer_wait_for_vblank returns error after
drm_vblank_off. We get below warnings without this error handling
because vblank reference count is mismatched by above sequence.
setting mode 1920x1080-60Hz@XR24 on connectors 16, crtc 13
[ 19.900793] ------------[ cut here ]------------
[ 19.903959] WARNING: CPU: 0 PID: 0 at drivers/gpu/drm/drm_irq.c:1072 exynos_drm_crtc_finish_pageflip+0xac/0xdc()
[ 19.914076] Modules linked in:
[ 19.917116] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.19.0-rc4-00040-g3d729789-dirty #46
[ 19.925342] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 19.931437] [<c0014430>] (unwind_backtrace) from [<c001158c>] (show_stack+0x10/0x14)
[ 19.939131] [<c001158c>] (show_stack) from [<c04cdd50>] (dump_stack+0x84/0xc4)
[ 19.946329] [<c04cdd50>] (dump_stack) from [<c00226f4>] (warn_slowpath_common+0x80/0xb0)
[ 19.954382] [<c00226f4>] (warn_slowpath_common) from [<c00227c0>] (warn_slowpath_null+0x1c/0x24)
[ 19.963132] [<c00227c0>] (warn_slowpath_null) from [<c02c20cc>] (exynos_drm_crtc_finish_pageflip+0xac/0xdc)
[ 19.972841] [<c02c20cc>] (exynos_drm_crtc_finish_pageflip) from [<c02cb7ec>] (mixer_irq_handler+0xdc/0x104)
[ 19.982546] [<c02cb7ec>] (mixer_irq_handler) from [<c005c904>] (handle_irq_event_percpu+0x78/0x134)
[ 19.991555] [<c005c904>] (handle_irq_event_percpu) from [<c005c9fc>] (handle_irq_event+0x3c/0x5c)
[ 20.000395] [<c005c9fc>] (handle_irq_event) from [<c005f384>] (handle_fasteoi_irq+0xe0/0x1ac)
[ 20.008885] [<c005f384>] (handle_fasteoi_irq) from [<c005bf88>] (generic_handle_irq+0x2c/0x3c)
[ 20.017463] [<c005bf88>] (generic_handle_irq) from [<c005c254>] (__handle_domain_irq+0x7c/0xec)
[ 20.026128] [<c005c254>] (__handle_domain_irq) from [<c0008698>] (gic_handle_irq+0x30/0x68)
[ 20.034449] [<c0008698>] (gic_handle_irq) from [<c00120c0>] (__irq_svc+0x40/0x74)
[ 20.041893] Exception stack(0xc06fff68 to 0xc06fffb0)
[ 20.046923] ff60: 00000000 00000000 000052f6 c001b460 c06fe000 c07064e8
[ 20.055070] ff80: c04d743c c07392a2 c0739440 c06da340 ef7fca80 00000000 01000000 c06fffb0
[ 20.063212] ffa0: c000f24c c000f250 60000013 ffffffff
[ 20.068245] [<c00120c0>] (__irq_svc) from [<c000f250>] (arch_cpu_idle+0x38/0x3c)
[ 20.075611] [<c000f250>] (arch_cpu_idle) from [<c0050948>] (cpu_startup_entry+0x108/0x16c)
[ 20.083846] [<c0050948>] (cpu_startup_entry) from [<c06aec5c>] (start_kernel+0x3a0/0x3ac)
[ 20.091980] ---[ end trace 2c76ee0500489d1b ]---
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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In booting, we can see a below message.
[ 3.241728] exynos-mixer 14450000.mixer: Unbalanced pm_runtime_enable!
Already pm_runtime_enable is called by probe function. Remove
pm_runtime_enable/disable from mixer_bind and mixer_unbind.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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This fixes reset codes to support memory mapped hdmi phy as well as hdmi
phy dedicated i2c lines.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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This was accidently lost in 76a0df859def.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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This patch completely removes the sync_with_hw() because it was broken and
actually there is no point of using it.
This function was used to:
- Make sure that the submitted packet to the HIQ (which is a kernel queue) was
read by the CP. However, it was discovered that the method this function used
to do that (checking wptr == rptr) is not consistent with how the actual CP
firmware works in all cases.
- Make sure that the queue is empty before issuing the next packet. To achieve
that, the function blocked amdkfd from continuing until the recently
submitted packet was consumed. However, the acquire_packet_buffer() already
checks if there is enough room for a new packet so calling sync_with_hw() is
redundant.
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
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Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
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In order not to occupy the current core and thus prevent the core from
servicing IOMMU PPR requests, this patch replaces the call in DQM to
cpu_relax() with a call to schedule().
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
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This patch fixes a minor bug in allocate_hqd(), where the loop run from the
next-to-allocate pipe until the number of pipes.
This is wrong because we need to consider the possibility where
next-to-allocate pipe is not 0, and thus, the for-loop only checks part of the
pipes and doesn't wrap-around, as it supposed to do.
Therefore, we add another counting variable to make sure we go over all the
pipes, regardless of where we start to look at the first iteration of the loop.
This bug only affected non-HWS mode. In HWS mode, the CP fw is responsible for
allocating the HQD.
Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
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This adds a quirks list to fix stability problems with
certain SI boards.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=76490
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Daniel merged two things in 72a3697097b8dc92f5b8362598f5730a9986eb83,
but he merged this code twice, Dan's static checker spotted it.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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If CONFIG_DEBUG_MUTEXES is set, the mutex->owner field is only cleared
if the mutex debugging is enabled which introduces a race in our
mutex_is_locked_by() - i.e. we may inspect the old owner value before it
is acquired by the new task.
This is the root cause of this error:
diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
index 5cf6731..3ef3736 100644
--- a/kernel/locking/mutex-debug.c
+++ b/kernel/locking/mutex-debug.c
@@ -80,13 +80,13 @@ void debug_mutex_unlock(struct mutex *lock)
DEBUG_LOCKS_WARN_ON(lock->owner != current);
DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
- mutex_clear_owner(lock);
}
/*
* __mutex_slowpath_needs_to_unlock() is explicitly 0 for debug
* mutexes so that we can do it here after we've verified state.
*/
+ mutex_clear_owner(lock);
atomic_set(&lock->count, 1);
}
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87955
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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