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2018-08-07drm/i2c: tda998x: get rid of private fill_modes functionRussell King1-24/+6
We can achieve the same effect via the get_modes() method, rather than wrapping the fill_modes helper. Tested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-07drm/i2c: tda998x: move mode_valid() to bridgeRussell King1-16/+16
Move the mode_valid() implementation to the bridge instead of the connector, as we're checking the bridge's capabilities. Tested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-07drm/i2c: tda998x: register bridge outside of component helperRussell King1-13/+13
Register the bridge outside of the component helper as we have drivers that wish to use the tda998x without its encoder. Tested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-07drm/i2c: tda998x: cleanup from previous changesRussell King1-39/+37
Cleanup the code a little from the effects of the previous changes: - Move tda998x_destroy() to be above tda998x_create() - Use 'dev' directly in tda998x_create() where appropriate. Tested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-07drm/i2c: tda998x: allocate tda998x_priv inside tda998x_create()Russell King1-14/+16
Move the tda998x_priv allocation inside tda998x_create() and simplify the tda998x_create()'s arguments. Pass the same to tda998x_destroy(). Tested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-07drm/i2c: tda998x: convert to bridge driverRussell King1-75/+81
Convert tda998x to a bridge driver with built-in encoder support for compatibility with existing component drivers. Tested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-06drm/etnaviv: fix crash in GPU suspend when init failed due to buffer placementLucas Stach1-0/+1
When the suballocator was unable to provide a suitable buffer for the MMUv1 linear window, we roll back the GPU initialization. As the GPU is runtime resumed at that point we need to clear the kernel cmdbuf suballoc entry to properly skip any attempt to manipulate the cmdbuf when the GPU gets shut down in the runtime suspend later on. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2018-08-06drm/etnaviv: change return type to vm_fault_tSouptick Joarder2-29/+11
Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. Ref- commit 1c8f422059ae ("mm: change return type to vm_fault_t") Previously vm_insert_page() returns err which driver mapped into VM_FAULT_* type. The new function vmf_insert_page() will replace this inefficiency by returning VM_FAULT_* type. vmf_error() is the newly introduce inline function in 4.17-rc6. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2018-08-06drm/etnaviv: protect sched job submission with fence mutexLucas Stach4-11/+21
The documentation of drm_sched_job_init and drm_sched_entity_push_job has been clarified. Both functions should be called under a shared lock, to avoid jobs getting pushed into the scheduler queue in a different order than their sched_fence seqnos, which will confuse checks that are looking at the seqnos to infer information about completion order. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2018-08-06drm/etnaviv: mmuv2: use memset32 to init scratch pagePhilipp Zabel1-5/+4
Replace the open-coded scratch page initialization loop with memset32 Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2018-08-02drm/i2c: tda998x: move tda998x_set_config() into tda998x_create()Russell King1-38/+35
Move the non-DT configuration of the TDA998x into tda998x_create() so that we do all setup in one place. Tested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-02drm/i2c: tda998x: split tda998x_encoder_dpms into enable/disablePeter Rosin1-12/+25
This fits better with the drm_bridge callbacks for when this driver becomes a drm_bridge. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Peter Rosin <peda@axentia.se> [edited by rmk to just split the tda998x_encoder_dpms() function and restore the double-disable protection we originally had, preserving original behaviour.] Tested-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-02drm/i2c: tda998x: find the drm_device via the drm_connectorPeter Rosin1-1/+1
This prepares for being a drm_bridge which will not register the encoder. That makes the connector the better choice. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2018-08-01drm/ttm: clean up non-x86 definitions on ttm_ttHuang Rui1-18/+7
All non-x86 definitions are moved to ttm_set_memory header, so remove it from ttm_tt.c. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-01drm/ttm: Add ttm_set_pages_wc and ttm_set_pages_uc helperHuang Rui1-0/+22
These two helpers will be used on set page caching. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-01drm/ttm: fix missed conversion of set_pages_array_ucHuang Rui1-1/+1
This patch fixed the error when do not configure CONFIG_X86, otherwise, below error will be encountered. All errors (new ones prefixed by >>): drivers/gpu/drm/ttm/ttm_page_alloc_dma.c: In function 'ttm_set_pages_caching': >> drivers/gpu/drm/ttm/ttm_page_alloc_dma.c:272:7: error: implicit declaration of function 'set_pages_array_uc'; did you mean +'ttm_set_pages_array_uc'? [-Werror=implicit-function-declaration] r = set_pages_array_uc(pages, cpages); ^~~~~~~~~~~~~~~~~~ ttm_set_pages_array_uc cc1: some warnings being treated as errors Reported-by: kbuild test robot <lkp@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu/pm: Fix potential Spectre v1Gustavo A. R. Silva1-1/+2
idx can be indirectly controlled by user-space, hence leading to a potential exploitation of the Spectre variant 1 vulnerability. This issue was detected with the help of Smatch: drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:408 amdgpu_set_pp_force_state() warn: potential spectre issue 'data.states' Fix this by sanitizing idx before using it to index data.states Notice that given that speculation windows are large, the policy is to kill the speculation on the first load and not worry if it can be completed with a dependent load/store [1]. [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amd/display: add missing void parameter to dc_create_transfer_funcColin Ian King1-1/+1
Add a missing void parameter to function dc_create_transfer_func, fixes sparse warning: warning: non-ANSI function declaration of function 'dc_create_transfer_func' Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/radeon: Replace ttm_bo_unref with ttm_bo_putThomas Zimmermann1-3/+2
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/radeon: Replace ttm_bo_reference with ttm_bo_getThomas Zimmermann1-1/+1
The function ttm_bo_get acquires a reference on a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: Replace ttm_bo_unref with ttm_bo_putThomas Zimmermann1-3/+2
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. v2: * set prefix to drm/amdgpu Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: Replace ttm_bo_reference with ttm_bo_getThomas Zimmermann1-1/+1
The function ttm_bo_get acquires a reference on a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. v2: * changed prefix to drm/amdgpu Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/scheduler: stop setting rq to NULLChristian König1-27/+8
We removed the redundancy of having an extra scheduler field, so we can't set the rq to NULL any more or otherwise won't know which scheduler to use for the cleanup. Just remove the entity from the scheduling list instead. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> Bug: https://bugs.freedesktop.org/show_bug.cgi?id=107367 Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/scheduler: only kill entity if last user is killed v2Christian König2-1/+7
Note which task is using the entity and only kill it if the last user of the entity is killed. This should prevent problems when entities are leaked to child processes. v2: add missing kernel doc Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Acked-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: create an empty bo_list if no handle is providedChristian König1-65/+46
Instead of having extra handling just create an empty bo_list when no handle is provided. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: allocate the bo_list array after the listChristian König2-74/+57
This avoids multiple allocations for the head and the array. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: add bo_list iteratorsChristian König3-39/+43
Add helpers to iterate over all entries in a bo_list. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: nuke amdgpu_bo_list_freeChristian König3-14/+2
The RCU grace period is harmless and avoiding it is not worth the effort of doubling the implementation. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: always recreate bo_listChristian König3-15/+12
The bo_list handle is allocated by OP_CREATE, so in OP_UPDATE here we just re-create the bo_list object and replace the handle. This way we don't need locking to protect the bo_list because it's always re-created when changed. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: move bo_list defines to amdgpu_bo_list.hChristian König2-39/+71
Further demangle amdgpu.h Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: add new amdgpu_vm_bo_trace_cs() function v2Christian König4-0/+37
This allows us to trace all VM ranges which should be valid inside a CS. v2: dump mappings without BO as well Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-and-tested-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> (v1) Reviewed-by: Huang Rui <ray.huang@amd.com> (v1) Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: return error if both BOs and bo_list handle is givenChristian König1-3/+6
Return -EINVAL when both the BOs as well as a list handle is provided in the IOCTL. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: fix total size calculationChristian König1-1/+1
long might only be 32bit in size and we can easily use more than 4GB here. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/sched: remove unneeded -Iinclude/drm compiler flagMasahiro Yamada1-1/+0
I refactored the include directives under include/drm/ some time ago. This flag is unneeded. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Christian König <christian.koenig@amd.com> Acked-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: add proper error handling to amdgpu_bo_list_getChristian König3-23/+20
Otherwise we silently don't use a BO list when the handle is invalid. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amdgpu: fix a reversed conditionRex Zhu1-1/+1
This test was reversed so it would end up leading to vddnb value can't be read via hwmon on APU. Reviewed-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2018-07-31drm/amd/pp: Convert voltage unit in mV*4 to mV on CZ/STRex Zhu1-2/+3
the voltage showed in debugfs and hwmon should be in mV Reviewed-by: Evan Quan <evan.quan@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2018-07-31drm/amd/pp: Delete unused temp variablesRex Zhu1-16/+6
Only delete the dead temp variables in Polaris. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-31drm/amd/pp/Polaris12: Fix a chunk of registers missed to programRex Zhu1-0/+43
DIDTConfig_Polaris12[] table missed a big chunk of data. Pointed by aidan.fabius <aidan.fabius@coreavi.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2018-07-31drm/arm/hdlcd: Reject atomic commits that disable only the planeLiviu Dudau2-17/+19
The HDLCD engine needs an active plane while the CRTC is active, as it will start scanning out data from HDLCD_REG_FB_BASE once it gets enabled. Make sure that the only available plane doesn't get disabled while the CRTC remains active, as this will scanout invalid data. Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31drm: arm: hdlcd: Use drm_atomic_helper_shutdown() to disable planes on removalLaurent Pinchart2-7/+2
The plane cleanup handler currently calls drm_plane_helper_disable(), which is a legacy helper function. Replace it with a call to drm_atomic_helper_shutdown() at removal time. The plane .destroy() handler now consisting only of a call to drm_plane_cleanup(), replace it with direct calls to that function. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31drm: arm: hdlcd: Don't destroy plane manually in hdlcd_setup_crtc()Laurent Pinchart1-3/+1
The top-level error handler calls drm_mode_config_cleanup() which will destroy all planes. There's no need to destroy them manually in lower error handlers. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31drm/arm/hdlcd: Use drm_fb_cma_fbdev_init/fini()Noralf Trønnes2-32/+6
Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on the fact that drm_device holds a pointer to the drm_fb_helper structure. This means that the driver doesn't have to keep track of that. Also use the drm_fb_helper functions directly. Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Brian Starkey <brian.starkey@arm.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31drm/arm/hdlcd: Use drm_mode_config_helper_suspend/resume()Noralf Trønnes2-23/+3
Replace driver's code with the generic helpers that do the same thing including the NULL check. Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Brian Starkey <brian.starkey@arm.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31udl-kms: dont spam the syslog with debug messagesMikulas Patocka2-4/+4
The udl kms driver writes messages to the syslog whenever some application opens or closes /dev/fb0 and whenever the user switches between the Xserver and the console. This patch changes the priority of these messages to debug. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-07-31udl-kms: use spin_lock_irq instead of spin_lock_irqsaveMikulas Patocka2-9/+6
spin_lock_irqsave and spin_unlock_irqrestore is inteded to be called from a context where it is unknown if interrupts are enabled or disabled (such as interrupt handlers). From a process context, we should call spin_lock_irq and spin_unlock_irq, that avoids the costly pushf and popf instructions. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-07-31udl-kms: avoid prefetchMikulas Patocka1-7/+0
Modern processors can detect linear memory accesses and prefetch data automatically, so there's no need to use prefetch. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-07-31udl-kms: avoid divisionMikulas Patocka3-26/+30
Division is slow, so it shouldn't be done by the pixel generating code. The driver supports only 2 or 4 bytes per pixel, so we can replace division with a shift. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-07-31udl-kms: fix crash due to uninitialized memoryMikulas Patocka1-1/+1
We must use kzalloc when allocating the fb_deferred_io structure. Otherwise, the field first_io is undefined and it causes a crash. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-07-31udl-kms: handle allocation failureMikulas Patocka1-10/+18
Allocations larger than PAGE_ALLOC_COSTLY_ORDER are unreliable and they may fail anytime. This patch fixes the udl kms driver so that when a large alloactions fails, it tries to do multiple smaller allocations. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
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