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2017-01-15Merge branch 'efi-urgent-for-linus' of ↵Linus Torvalds4-41/+95
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI fixes from Ingo Molnar: "A number of regression fixes: - Fix a boot hang on machines that have somewhat unusual memory map entries of phys_addr=0x0 num_pages=0, which broke due to a recent commit. This commit got cherry-picked from the v4.11 queue because the bug is affecting real machines. - Fix a boot hang also reported by KASAN, caused by incorrect init ordering introduced by a recent optimization. - Fix a recent robustification fix to allocate_new_fdt_and_exit_boot() that introduced an invalid assumption. Neither bugs were seen in the wild AFAIK" * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/x86: Prune invalid memory map entries and fix boot regression x86/efi: Don't allocate memmap through memblock after mm_init() efi/libstub/arm*: Pass latest memory map to the kernel
2017-01-14Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds9-58/+28
Pull block fixes from Jens Axboe: - the virtio_blk stack DMA corruption fix from Christoph, fixing and issue with VMAP stacks. - O_DIRECT blkbits calculation fix from Chandan. - discard regression fix from Christoph. - queue init error handling fixes for nbd and virtio_blk, from Omar and Jeff. - two small nvme fixes, from Christoph and Guilherme. - rename of blk_queue_zone_size and bdev_zone_size to _sectors instead, to more closely follow what we do in other places in the block layer. This interface is new for this series, so let's get the naming right before releasing a kernel with this feature. From Damien. * 'for-linus' of git://git.kernel.dk/linux-block: block: don't try to discard from __blkdev_issue_zeroout sd: remove __data_len hack for WRITE SAME nvme: use blk_rq_payload_bytes scsi: use blk_rq_payload_bytes block: add blk_rq_payload_bytes block: Rename blk_queue_zone_size and bdev_zone_size nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too nvme-rdma: fix nvme_rdma_queue_is_ready virtio_blk: fix panic in initialization error path nbd: blk_mq_init_queue returns an error code on failure, not NULL virtio_blk: avoid DMA to stack for the sense buffer do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned
2017-01-14Merge tag 'dmaengine-fix-4.10-rc4' of ↵Linus Torvalds8-40/+78
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: "The fixes this time around are spread over drivers, pretty normal update: - PCI ID for SKL ioatdma, workaround for SKX and ioat_alloc_chan_resources sleepy allocation fix - dw kconfig typo fix - null pointer deref for stm32 - MAINTAINERS Update for at_hdmac - pl330 runtime pm fixes - omap-dma port window fix - rcar-dmac unmap slave resource fix" * tag 'dmaengine-fix-4.10-rc4' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: rcar-dmac: unmap slave resource when channel is freed dmaengine: omap-dma: Fix the port_window support dmaengine: iota: ioat_alloc_chan_resources should not perform sleeping allocations. dmaengine: pl330: Fix runtime PM support for terminated transfers MAINTAINERS: dmaengine: Update + Hand over the at_hdmac driver to Ludovic dmaengine: omap-dma: Fix dynamic lch_map allocation dmaengine: ti-dma-crossbar: Add some 'of_node_put()' in error path. dmaengine: stm32-dma: Fix null pointer dereference in stm32_dma_tx_status dmaengine: stm32-dma: Set correct args number for DMA request from DT dmaengine: dw: fix typo in Kconfig dmaengine: ioatdma: workaround SKX ioatdma version dmaengine: ioatdma: Add Skylake PCI Dev ID
2017-01-14drm/i915: Eliminate superfluous i915_ggtt_view_normalChris Wilson4-9/+2
Since commit 058d88c4330f ("drm/i915: Track pinned VMA"), there is only one user of i915_ggtt_view_normal rodate. Just treat NULL as no special view in pin_to_display() like everywhere else. Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Joonas Lahtinen <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-14drm/i915: Eliminate superfluous i915_ggtt_view_rotatedChris Wilson3-7/+2
It is only being used to clear a struct and set the type, after which it is overwritten. Since we no longer check the unset bits of the union, skipping the clear is permissible. Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Joonas Lahtinen <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-14drm/i915: Convert i915_ggtt_view to use an anonymous unionChris Wilson7-27/+32
Reading the ggtt_views is much more pleasant without the extra characters from specifying the union (i.e. ggtt_view.partial rather than ggtt_view.params.partial). To make this work inside i915_vma_compare() with only a single memcmp requires us to ensure that there are no uninitialised bytes within each branch of the union (we make sure the structs are packed) and we need to store the size of each branch. v4: Rewrite changelog and add comments explaining the assert. Signed-off-by: Chris Wilson <[email protected]> Cc: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Joonas Lahtinen <[email protected]> Reviewed-by: Tvrtko Ursulin <[email protected]>
2017-01-14drm/i915: Stop clearing i915_ggtt_viewChris Wilson1-1/+0
As we now use a compact memcmp in i915_vma_compare(), we can forgo clearing the entire view and only set the precise parameters used in this view. Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Tvrtko Ursulin <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-14drm/i915: Compact memcmp in i915_vma_compare()Chris Wilson2-13/+35
In preparation for the next patch to convert to using an anonymous union and leaving the excess bytes in the union uninitialised, we first need to make sure we do not compare using those uninitialised bytes. We also want to preserve the compactness of the code, avoiding a second call to memcmp or introducing a switch, so we take advantage of using the type as an encoded size (as well as a unique identifier for each type of view). v2: Add the rationale for why we encode size into ggtt_view.type as a comment before the memcmp() v3: Use a switch to also assert that no two i915_ggtt_view_type have the same value. Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Tvrtko Ursulin <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-14drm/i915: Mark the ggtt_view structs as packedChris Wilson1-2/+12
In the next few patches, we will depend upon there being no uninitialised bits inside the ggtt_view. To ensure this we add the __packed attribute and double check with a build bug that gcc hasn't expanded the struct to include some padding bytes. Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Tvrtko Ursulin <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-14drm/i915: Name the anonymous structs inside i915_ggtt_viewChris Wilson1-5/+7
Naming this pair will become useful shortly... Signed-off-by: Chris Wilson <[email protected]> Reviewed-by: Tvrtko Ursulin <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-14Revert "driver core: Add deferred_probe attribute to devices in sysfs"Greg Kroah-Hartman3-22/+0
This reverts commit 6751667a29d6fd64afb9ce30567ad616b68ed789. Rob Herring objected to it, and a replacement for it will be added using debugfs in the future. Cc: Ben Hutchings <[email protected]> Reported-by: Rob Herring <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2017-01-13Merge tag 'vfio-v4.10-rc4' of git://github.com/awilliam/linux-vfioLinus Torvalds1-3/+1
Pull VFIO fixes from Alex Williamson: - Cleanups and bug fixes for the mtty sample driver (Dan Carpenter) - Export and make use of has_capability() to fix incorrect use of ns_capable() for testing task capabilities (Jike Song) * tag 'vfio-v4.10-rc4' of git://github.com/awilliam/linux-vfio: vfio/type1: Remove pid_namespace.h include vfio iommu type1: fix the testing of capability for remote task capability: export has_capability vfio-mdev: remove some dead code vfio-mdev: buffer overflow in ioctl() vfio-mdev: return -EFAULT if copy_to_user() fails
2017-01-13sd: remove __data_len hack for WRITE SAMEChristoph Hellwig1-16/+1
Now that we have the blk_rq_payload_bytes helper available to determine the actual I/O size we don't need to mess around with __data_len for WRITE SAME. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2017-01-13nvme: use blk_rq_payload_bytesChristoph Hellwig4-30/+15
The new blk_rq_payload_bytes generalizes the payload length hacks that nvme_map_len did before. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2017-01-13scsi: use blk_rq_payload_bytesChristoph Hellwig1-1/+1
Without that we'll pass a wrong payload size in cmd->sdb, which can lead to hangs with drivers that need the total transfer size. Signed-off-by: Christoph Hellwig <[email protected]> Reported-by: Chris Valean <[email protected]> Reported-by: Dexuan Cui <[email protected]> Fixes: f9d03f96 ("block: improve handling of the magic discard payload") Reviewed-by: Hannes Reinecke <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2017-01-13Merge tag 'scsi-fixes' of ↵Linus Torvalds7-6/+26
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "The major fix is the bfa firmware, since the latest 10Gb cards fail probing with the current firmware. The rest is a set of minor fixes: one missed Kconfig dependency causing randconfig failures, a missed error return on an error leg, a change for how multiqueue waits on a blocked device and a don't reset while in reset fix" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: bfa: Increase requested firmware version to 3.2.5.1 scsi: snic: Return error code on memory allocation failure scsi: fnic: Avoid sending reset to firmware when another reset is in progress scsi: qedi: fix build, depends on UIO scsi: scsi-mq: Wait for .queue_rq() if necessary
2017-01-13Merge branch 'for-linus' of ↵Linus Torvalds8-10/+20
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Small driver fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: elants_i2c - avoid divide by 0 errors on bad touchscreen data Input: adxl34x - make it enumerable in ACPI environment Input: ALPS - fix TrackStick Y axis handling for SS5 hardware Input: synaptics-rmi4 - fix F03 build error when serio is module Input: xpad - use correct product id for x360w controllers Input: synaptics_i2c - change msleep to usleep_range for small msecs Input: i8042 - add Pegatron touchpad to noloop table Input: joydev - remove unused linux/miscdevice.h include
2017-01-13drm/i915/psr: report live PSR2 StateNagaraju, Vathsala2-0/+25
Reports live state of PSR2 form PSR2_STATUS register. bit field 31:28 gives the live state of PSR2. It can be used to check if system is in deep sleep, selective update or selective update standby. During video play back, we can use this to check if system is entering SU mode or not. when system is in idle state, DEEP_SLEEP(8) must be entered. When video playback is happening, system must be in SLEEP(3 / selective update) or SU_STANDBY( 6 / selective update standby) v2: (Rodrigo) - Remove EDP_PSR2_STATUS_TG_ON=a ,instead use ARRAY_SIZE Cc: Rodrigo Vivi <[email protected]> Cc: Jim Bride <[email protected]> Signed-off-by: Vathsala Nagaraju <[email protected]> Signed-off-by: Patil Deepti <[email protected]> Reviewed-by: Rodrigo Vivi <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-13drm/i915/psr: enable psr2 for y cordinate panelsNagaraju, Vathsala1-0/+9
Psr2 is enabled only for y cordinate panels.Once GTC (global time code) is implemented,this restriction is removed so that psr2 can work on panels without y cordinate support. v2: (Rodrigo) - Move the check to intel_psr_match_conditions v3: (Rodrigo) - add return false v4: rebase Cc: Rodrigo Vivi <[email protected]> Cc: Jim Bride <[email protected]> Signed-off-by: Vathsala Nagaraju <[email protected]> Signed-off-by: Patil Deepti <[email protected]> Reviewed-by: Rodrigo Vivi <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-13drm/i915/psr: set PSR_MASK bits for deep sleepNagaraju, Vathsala2-13/+27
Program EDP_PSR_DEBUG_CTL (PSR_MASK) to enable system to go to deep sleep while in psr2.PSR2_STATUS bit 31:28 should report value 8 , if system enters deep sleep state. Also, EDP_FRAMES_BEFORE_SU_ENTRY is set 1 , if not set, flickering is observed on psr2 panel. v2: (Ilia Mirkin) - Remove duplicate bit definition 25:27 v3: rebase v4: rebase v5: rebase Cc: Rodrigo Vivi <[email protected]> Cc: Jim Bride <[email protected]> Signed-off-by: Vathsala Nagaraju <[email protected]> Signed-off-by: Patil Deepti <[email protected]> Reviewed-by: Jim Bride <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-13drm/i915/psr: set CHICKEN_TRANS for psr2Nagaraju, Vathsala2-0/+13
As per bpsec, CHICKEN_TRANS_EDP bit 12 ,15 must be programmed in psr2 enable sequence. bit 12 : Program Transcoder EDP VSC DIP header with a valid setting for PSR2 and Set CHICKEN_TRANS_EDP(0x420cc) bit 12 for programmable header packet. bit 15 : Set CHICKEN_TRANS_EDP(0x420cc) bit 15 if Y coordinate is supported v2: (Rodrigo) - move CHICKEN_TRANS_EDP bit set logic right after setup_vsc v3:(Rodrigo) - initialize chicken_trans to CHICKEN_TRANS_BIT12 instead of 0 v4:(chris wilson) - use BIT(12), remove CHICKEN_TRANS_BIT12 - remove unnecessary comments - update commit message v5: - rename bit 12 PSR2_VSC_ENABLE_PROG_HEADER - rename bit 15 PSR2_ADD_VERTICAL_LINE_COUNT v6:(Rodrigo) - remove TRANS_EDP=3, use cpu_transcoder Cc: Rodrigo Vivi <[email protected]> Cc: Jim Bride <[email protected]> Signed-off-by: vathsala nagaraju <[email protected]> Signed-off-by: Patil Deepti <[email protected]> Reviewed-by: Rodrigo Vivi <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-13partially revert "xen: Remove event channel notification through Xen PCI ↵Stefano Stabellini1-0/+71
platform device" Commit 72a9b186292d ("xen: Remove event channel notification through Xen PCI platform device") broke Linux when booting as Dom0 on Xen in a nested Xen environment (Xen installed inside a Xen VM). In this scenario, Linux is a PV guest, but at the same time it uses the platform-pci driver to receive notifications from L0 Xen. vector callbacks are not available because L1 Xen doesn't allow them. Partially revert the offending commit, by restoring IRQ based notifications for PV guests only. I restored only the code which is strictly needed and replaced the xen_have_vector_callback checks within it with xen_pv_domain() checks. Signed-off-by: Stefano Stabellini <[email protected]> Reviewed-by: Boris Ostrovsky <[email protected]>
2017-01-13libnvdimm, namespace: fix pmem namespace leak, delete when size set to zeroDan Williams1-13/+10
Commit 98a29c39dc68 ("libnvdimm, namespace: allow creation of multiple pmem-namespaces per region") added support for establishing additional pmem namespace beyond the seed device, similar to blk namespaces. However, it neglected to delete the namespace when the size is set to zero. Fixes: 98a29c39dc68 ("libnvdimm, namespace: allow creation of multiple pmem-namespaces per region") Cc: <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2017-01-13net: systemport: Decouple flow control from __bcm_sysport_tx_reclaimFlorian Fainelli1-7/+18
The __bcm_sysport_tx_reclaim() function is used to reclaim transmit resources in different places within the driver. Most of them should not affect the state of the transit flow control. Introduce bcm_sysport_tx_clean() which cleans the ring, but does not re-enable flow control towards the networking stack, and make bcm_sysport_tx_reclaim() do the actual transmit queue flow control. Fixes: 80105befdb4b ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver") Signed-off-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-01-13Revert "drm/amdgpu: Only update the CUR_SIZE register when necessary"Michel Dänzer4-60/+30
This reverts commits 7c83d7abc9997cf1efac2c0ce384b5e8453ee870 and a1f49cc179ce6b7b7758ae3ff5cdb138d0ee0f56. They caused the HW cursor to disappear under various circumstances in the wild. I wasn't able to reproduce any of them, and I'm not sure what's going on. But those changes aren't a big deal anyway, so let's just revert for now. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=191291 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99143 Acked-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2017-01-13drm/i915: Assert that we have allocated the drm_mm_node upon pinningChris Wilson2-1/+5
We currently check after the slow path that the vma is bound correctly, but we don't currently check after the fast path. This is important in case we accidentally take the fast path and leave the vma misplaced. Signed-off-by: Chris Wilson <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Joonas Lahtinen <[email protected]>
2017-01-13drm/i915: Move i915_ppgtt_close() into i915_gem_gtt.cChris Wilson3-21/+22
Move it alongside its ppgtt counterparts, in order to make it available for the ppgtt selftests. Signed-off-by: Chris Wilson <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Joonas Lahtinen <[email protected]>
2017-01-13vfio/type1: Remove pid_namespace.h includeAlex Williamson1-1/+0
Using has_capability() rather than ns_capable(), we're no longer using this header. Cc: Jike Song <[email protected]> Cc: Kirti Wankhede <[email protected]> Signed-off-by: Alex Williamson <[email protected]>
2017-01-13drm/msm: fix potential null ptr issue in non-iommu caseRob Clark2-3/+4
Fixes: 9cb07b099fb ("drm/msm: support multiple address spaces") Reported-by: Riku Voipio <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2017-01-13drm/msm/mdp5: rip out plane->pending trackingRob Clark3-32/+0
It would race between userspace thread and commit worker. Ie. vblank irq would trigger event and userspace could begin the next atomic update, before the commit worker had a chance to clear the pending flag. If we do end up needing something to prevent userspace from trying another pageflip before getting vblank event, it should probably be implemented as a pending_planes bitmask, similar to pending_crtcs. See start_atomic() and end_atomic(). Signed-off-by: Rob Clark <[email protected]>
2017-01-13Merge remote-tracking branch 'mkp-scsi/4.10/scsi-fixes' into fixesJames Bottomley5-85/+33
2017-01-13HID: corsair: fix control-transfer error handlingJohan Hovold1-3/+3
Make sure to check for short control transfers in order to avoid parsing uninitialised buffer data and leaking it to user space. Note that the backlight and macro-mode buffer constraints are kept as loose as possible in order to avoid any regressions should the current buffer sizes be larger than necessary. Fixes: 6f78193ee9ea ("HID: corsair: Add Corsair Vengeance K90 driver") Cc: stable <[email protected]> Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2017-01-13HID: corsair: fix DMA buffers on stackJohan Hovold1-12/+42
Not all platforms support DMA to the stack, and specifically since v4.9 this is no longer supported on x86 with VMAP_STACK either. Note that the macro-mode buffer was larger than necessary. Fixes: 6f78193ee9ea ("HID: corsair: Add Corsair Vengeance K90 driver") Cc: stable <[email protected]> Signed-off-by: Johan Hovold <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2017-01-13drm/exynos/decon5433: set STANDALONE_UPDATE_F also if planes are disabledAndrzej Hajda1-3/+5
STANDALONE_UPDATE_F should be set if something changed in plane configurations, including plane disable. The patch fixes page-faults bugs, caused by decon still using framebuffers of disabled planes. v2: fixed clear-bit code (Thx Marek) v3: use test_and_clear_bit (Thx Joonyoung) Signed-off-by: Andrzej Hajda <[email protected]> Tested-by: Joonyoung Shim <[email protected]> Signed-off-by: Inki Dae <[email protected]>
2017-01-13drm/exynos/decon5433: update shadow registers iff there are active windowsAndrzej Hajda1-4/+3
Improper usage of DECON_UPDATE register leads to subtle errors. If it set in decon_commit when there are no active windows it results in slow registry updates - all subsequent shadow registry updates takes more than full vblank. On the other side if it is not set when there are active windows it results in garbage on the screen after suspend/resume of FB console. The patch hopefully fixes it. Signed-off-by: Andrzej Hajda <[email protected]> Signed-off-by: Inki Dae <[email protected]>
2017-01-13drm/i915/gvt: rewrite gt reset handler using new function ↵Changbin Du1-61/+29
intel_gvt_reset_vgpu_locked GT reset and FLR share some operations and they are both implemented in our new function intel_gvt_reset_vgpu_locked(). This patch rewrite the gt reset handler using this new function. Besides, this new implementation fixed the old issue in GT reset. The old implementation reset GGTT entries which is illegal. We only clear GGTT entries at PCI level reset. Signed-off-by: Changbin Du <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
2017-01-13drm/i915/gvt: fix vGPU instance reuse issues by vGPU reset functionChangbin Du2-1/+74
Our function tests found several issues related to reusing vGPU instance. They are qemu reboot failure, guest tdr after reboot, host hang when reboot guest. All these issues are caused by dirty status inherited from last VM. This patch fix all these issues by resetting a virtual GPU before VM use it. The reset logical is put into a low level function _intel_gvt_reset_vgpu(), which supports Device Model Level Reset, Full GT Reset and Per-Engine Reset. vGPU Device Model Level Reset (DMLR) simulates the PCI reset to reset the whole vGPU to default state as when it is created, including GTT, execlist, scratch pages, cfg space, mmio space, pvinfo page, scheduler and fence registers. The ultimate goal of vGPU DMLR is that reuse a vGPU instance by different virtual machines. When we reassign a vGPU to a virtual machine we must issue such reset first. Full GT Reset and Per-Engine GT Reset are soft reset flow for GPU engines (Render, Blitter, Video, Video Enhancement). It is defined by GPU Spec. Unlike the FLR, GT reset only reset particular resource of a vGPU per the reset request. Guest driver can issue a GT reset by programming the virtual GDRST register to reset specific virtual GPU engine or all engines. Since vGPU DMLR and GT reset can share some code so we implement both these two into one single function intel_gvt_reset_vgpu_locked(). The parameter dmlr is to identify if we will do FLR or GT reset. The parameter engine_mask is to specific the engines that need to be resetted. If value ALL_ENGINES is given for engine_mask, it means the caller requests a full gt reset that we will reset all virtual GPU engines. Signed-off-by: Changbin Du <[email protected]> Reviewed-by: Jike Song <[email protected]> Reviewed-by: Kevin Tian <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
2017-01-13drm/i915/gvt: introduce intel_vgpu_reset_mmio() to reset mmio spaceChangbin Du2-14/+26
This patch introduces a new function intel_vgpu_reset_mmio() to reset vGPU MMIO space (virtual registers of the vGPU). The default values are loaded as firmware during gvt inititiation. Signed-off-by: Changbin Du <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
2017-01-13drm/i915/gvt: move mmio init/clean function to mmio.cChangbin Du5-36/+49
Move the mmio space inititation function setup_vgpu_mmio() and cleanup function clean_vgpu_mmio() in vgpu.c to dedicated source file mmio.c, and rename them as intel_vgpu_init_mmio() and intel_vgpu_clean_mmio() respectively. Signed-off-by: Changbin Du <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
2017-01-13drm/i915/gvt: introduce intel_vgpu_reset_cfg_space to reset configuration spaceChangbin Du2-0/+27
This patch introduces a new function intel_vgpu_reset_cfg_space() to reset vGPU configuration space. This function will unmap gttmmio and aperture if they are mapped before. Then entire cfg space will be restored to default values. Currently we only do such reset when vGPU is not owned by any VM so we simply restore entire cfg space to default value, not following the PCIe FLR spec that some fields should remain unchanged. Signed-off-by: Changbin Du <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
2017-01-13drm/i915/gvt: move cfg space inititation function to cfg_space.cChangbin Du3-43/+52
Move the configuration space inititation function setup_vgpu_cfg_space() in vgpu.c to dedicated source file cfg_space.c, and rename the function as intel_vgpu_init_cfg_space(). Signed-off-by: Changbin Du <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
2017-01-13drm/i915/gvt: introuduce intel_vgpu_reset_gtt() to reset gttChangbin Du2-0/+28
This patch introduces a new function intel_vgpu_reset_gtt() to reset the all GTT related status, including GGTT, PPGTT, scratch page. This function can free all shadowed PPGTT, clear all GGTT entry, and clear scratch page to all zero. After this, we can ensure no gtt related information can be leakaged from one VM to anothor one when assign vgpu instance across different VMs (not simultaneously). Signed-off-by: Changbin Du <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
2017-01-13drm/i915/gvt: introudce intel_vgpu_reset_resource() to reset vgpu resource stateChangbin Du2-2/+28
This patch introudces a new function intel_vgpu_reset_resource() to reset allocated vgpu resources by intel_vgpu_alloc_resource(). So far we only need clear the fence registers. The function _clear_vgpu_fence() will reset both virtual and physical fence registers to 0. Signed-off-by: Changbin Du <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]>
2017-01-13dmaengine: rcar-dmac: unmap slave resource when channel is freedNiklas Söderlund1-0/+8
The slave mapping should be removed together with other channel resources when the channel is freed. If it's not unmapped it will hang around forever after the channel is freed. Fixes: 9f878603dbdb7db3 ("dmaengine: rcar-dmac: add iommu support for slave transfers") Reported-by: Laurent Pinchart <[email protected]> Signed-off-by: Niklas Söderlund <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Signed-off-by: Vinod Koul <[email protected]>
2017-01-12pmem: return EIO on read_pmem() failureStefan Hajnoczi1-1/+3
The read_pmem() function uses memcpy_mcsafe() on x86 where an EFAULT error code indicates a failed read. Block I/O should use EIO to indicate failure. Other pmem code paths (like bad blocks) already use EIO so let's be consistent. This fixes compatibility with consumers like btrfs that try to parse the specific error code rather than treat all errors the same. Reviewed-by: Jeff Moyer <[email protected]> Signed-off-by: Stefan Hajnoczi <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2017-01-12drm/i915/psr: enable ALPM for psr2Nagaraju, Vathsala3-1/+16
As per edp1.4 spec , alpm is required for psr2 operation as it's used for all psr2 main link power down management and alpm enable bit must be set for psr2 operation. Cc: Rodrigo Vivi <[email protected]> Cc: Jim Bride <[email protected]> Signed-off-by: vathsala nagaraju <[email protected]> Signed-off-by: Patil Deepti <[email protected]> Reviewed-by: Jim Bride <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-12drm/i915/psr: disable aux_frame_sync on psr2 exitNagaraju, Vathsala1-0/+9
Screen freeze observed if AUX_FRAME_SYNC is not disabled on psr2 exit.AUX_FRAME_SYNC needed for psr2 is enabled during psr2 entry. It must be disabled on psr2 exit. v2: rebase Cc: Rodrigo Vivi <[email protected]> Cc: Jim Bride <[email protected]> Signed-off-by: Vathsala Nagaraju <[email protected]> Signed-off-by: Patil Deepti <[email protected]> Reviewed-by: Rodrigo Vivi <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-12drm/i915/psr: fix blank screen issue for psr2Nagaraju, Vathsala2-30/+95
Psr1 and psr2 are mutually exclusive,ie when psr2 is enabled, psr1 should be disabled.When psr2 is exited , bit 31 of reg PSR2_CTL must be set to 0 but currently bit 31 of SRD_CTL (psr1 control register)is set to 0. Also ,PSR2_IDLE state is looked up from SRD_STATUS(psr1 register) instead of PSR2_STATUS register, which has wrong data, resulting in blankscreen. hsw_enable_source is split into hsw_enable_source_psr1 and hsw_enable_source_psr2 for easier code review and maintenance, as suggested by rodrigo and jim. v2: (Rodrigo) - Rename hsw_enable_source_psr* to intel_enable_source_psr* v3: (Rodrigo) - In hsw_psr_disable , 1) for psr active case, handle psr2 followed by psr1. 2) psr inactive case, handle psr2 followed by psr1 v4:(Rodrigo) - move psr2 restriction(32X20) to match_conditions function returning false and fully blocking PSR to a new patch before this one. v5: in source_psr2, removed val = EDP_PSR_ENABLE Cc: Rodrigo Vivi <[email protected]> Cc: Jim Bride <[email protected]> Signed-off-by: Vathsala Nagaraju <[email protected]> Signed-off-by: Patil Deepti <[email protected]> Reviewed-by: Rodrigo Vivi <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-12vfio iommu type1: fix the testing of capability for remote taskJike Song1-2/+1
Before the mdev enhancement type1 iommu used capable() to test the capability of current task; in the course of mdev development a new requirement, testing for another task other than current, was raised. ns_capable() was used for this purpose, however it still tests current, the only difference is, in a specified namespace. Fix it by using has_capability() instead, which tests the cap for specified task in init_user_ns, the same namespace as capable(). Cc: Gerd Hoffmann <[email protected]> Signed-off-by: Jike Song <[email protected]> Reviewed-by: James Morris <[email protected]> Reviewed-by: Kirti Wankhede <[email protected]> Signed-off-by: Alex Williamson <[email protected]>
2017-01-12drm/amd/powerplay: refine vce dpm update code on Cz.Rex Zhu1-8/+16
Program HardMin based on the vce_arbiter.ecclk if ecclk is 0, disable ECLK DPM 0. Otherwise VCE could hang if switching SCLK from DPM 0 to 6/7 Signed-off-by: Rex Zhu <[email protected]> Acked-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
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