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2018-02-11vfs: do bulk POLL* -> EPOLL* replacementLinus Torvalds3-7/+7
This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-08Merge tag 'drm-for-v4.16-part2-fixes' of ↵Linus Torvalds90-1788/+3168
git://people.freedesktop.org/~airlied/linux Pull more drm updates from Dave Airlie: "Ben missed sending his nouveau tree, but he really didn't have much stuff in it: - GP108 acceleration support is enabled by "secure boot" support - some clockgating work on Kepler, and bunch of fixes - the bulk of the diff is regenerated firmware files, the change to them really isn't that large. Otherwise this contains regular Intel and AMDGPU fixes" * tag 'drm-for-v4.16-part2-fixes' of git://people.freedesktop.org/~airlied/linux: (59 commits) drm/i915/bios: add DP max link rate to VBT child device struct drm/i915/cnp: Properly handle VBT ddc pin out of bounds. drm/i915/cnp: Ignore VBT request for know invalid DDC pin. drm/i915/cmdparser: Do not check past the cmd length. drm/i915/cmdparser: Check reg_table_count before derefencing. drm/i915/bxt, glk: Increase PCODE timeouts during CDCLK freq changing drm/i915/gvt: Use KVM r/w to access guest opregion drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=on drm/i915/gvt: only reset execlist state of one engine during VM engine reset drm/i915/gvt: refine intel_vgpu_submission_ops as per engine ops drm/amdgpu: re-enable CGCG on CZ and disable on ST drm/nouveau/clk: fix gcc-7 -Wint-in-bool-context warning drm/nouveau/mmu: Fix trailing semicolon drm/nouveau: Introduce NvPmEnableGating option drm/nouveau: Add support for SLCG for Kepler2 drm/nouveau: Add support for BLCG on Kepler2 drm/nouveau: Add support for BLCG on Kepler1 drm/nouveau: Add support for basic clockgating on Kepler1 drm/nouveau/kms/nv50: fix handling of gamma since atomic conversion drm/nouveau/kms/nv50: use INTERPOLATE_257_UNITY_RANGE LUT on newer chipsets ...
2018-02-08Merge tag 'drm-intel-next-fixes-2018-02-07' of ↵Dave Airlie17-136/+193
git://anongit.freedesktop.org/drm/drm-intel into drm-next Fix for pcode timeouts on BXT and GLK, cmdparser fixes and fixes for new vbt version on CFL and CNL. GVT contains vGPU reset enhancement, which refines vGPU reset flow and the support of virtual aperture read/write when x-no-mmap=on is set in KVM, which is required by a test case from Redhat and also another fix for virtual OpRegion. * tag 'drm-intel-next-fixes-2018-02-07' of git://anongit.freedesktop.org/drm/drm-intel: drm/i915/bios: add DP max link rate to VBT child device struct drm/i915/cnp: Properly handle VBT ddc pin out of bounds. drm/i915/cnp: Ignore VBT request for know invalid DDC pin. drm/i915/cmdparser: Do not check past the cmd length. drm/i915/cmdparser: Check reg_table_count before derefencing. drm/i915/bxt, glk: Increase PCODE timeouts during CDCLK freq changing drm/i915/gvt: Use KVM r/w to access guest opregion drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=on drm/i915/gvt: only reset execlist state of one engine during VM engine reset drm/i915/gvt: refine intel_vgpu_submission_ops as per engine ops
2018-02-07drm/i915/bios: add DP max link rate to VBT child device structJani Nikula2-3/+7
Update VBT defs to reflect revision 216. While at it, default the expected child device struct size to sizeof the size rather than a hardcoded value. v2: Fix bit order (David) Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180118153310.32437-1-jani.nikula@intel.com (cherry picked from commit c4fb60b9aba9f939d3f8575df23fd8d5958ec6ed) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-08Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie7-28/+26
into drm-next A few more misc fixes for 4.16. * 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: re-enable CGCG on CZ and disable on ST drm/amdgpu: disable coarse grain clockgating for ST drm/radeon: adjust tested variable drm/amdgpu: remove WARN_ON when VM isn't found v2 drm/amdgpu: fix locking in vega10_ih_prescreen_iv drm/amdgpu: fix another potential cause of VM faults drm/amdgpu: use queue 0 for kiq ring drm/ttm: Fix 'buf' pointer update in ttm_bo_vm_access_kmap() (v2) drm/ttm: fix missing parameter change for ttm_bo_cleanup_refs
2018-02-06drm/i915/cnp: Properly handle VBT ddc pin out of bounds.Rodrigo Vivi1-2/+3
If the table result is out of bounds on the array map there is something really wrong with VBT pin so we don't return that vbt_pin, but only return 0 instead. This basically reverts commit 'a8e6f3888b05 ("drm/i915/cnp: Ignore VBT request for know invalid DDC pin.")' Also this properly fixes commit 9c3b2689d01f ("drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.") v2: Do in a way that we don't break other platforms. (Jani) v3: Keep debug message (Jani) v4: Don't mess with 0 mapping was noticed by Jani and addressed with a simple solution suggested by Lucas that makes this even simpler. Fixes: a8e6f3888b05 ("drm/i915/cnp: Ignore VBT request for know invalid DDC pin.") Fixes: 9c3b2689d01f ("drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.") Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Kai Heng Feng <kai.heng.feng@canonical.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Suggested-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180125222524.22059-1-rodrigo.vivi@intel.com (cherry picked from commit 3393ce1ed8fc43dbdb83952facaf04e644ca1d54) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06drm/i915/cnp: Ignore VBT request for know invalid DDC pin.Rodrigo Vivi1-3/+8
Let's ignore VBT request if the pin is clearly wrong. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104139 Cc: Kai Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180123174050.4261-1-rodrigo.vivi@intel.com Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> (cherry picked from commit a8e6f3888b05c1e7b685800a3371ce050720368f) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06drm/i915/cmdparser: Do not check past the cmd length.Michal Srb1-0/+6
The command MEDIA_VFE_STATE checks bits at offset +2 dwords. However, it is possible to have MEDIA_VFE_STATE command with length = 0 + LENGTH_BIAS = 2. In that case check_cmd will read bits from the following command, or even past the end of the buffer. If the offset ends up outside of the command length, reject the command. Fixes: 351e3db2b363 ("drm/i915: Implement command buffer parsing logic") Signed-off-by: Michal Srb <msrb@suse.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180205151745.29292-1-msrb@suse.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180205160438.3267-2-chris@chris-wilson.co.uk (cherry picked from commit 3aec7f871c65eb5f76b4125fda432593c834a6f2) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06drm/i915/cmdparser: Check reg_table_count before derefencing.Michal Srb1-2/+2
The find_reg function was assuming that there is always at least one table in reg_tables. It is not always true. In case of VCS or VECS, the reg_tables is NULL and reg_table_count is 0, implying that no register-accessing commands are allowed. However, the command tables include commands such as MI_STORE_REGISTER_MEM. When trying to check such command, the find_reg would dereference NULL pointer. Now it will just return NULL meaning that the register was not found and the command will be rejected. Fixes: 76ff480ec963 ("drm/i915/cmdparser: Use binary search for faster register lookup") Signed-off-by: Michal Srb <msrb@suse.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180205142916.27092-2-msrb@suse.com Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180205160438.3267-1-chris@chris-wilson.co.uk register lookup") (cherry picked from commit 2f265fad9756a40c09e3f4dcc62d5d7fa73a9fb2) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06drm/i915/bxt, glk: Increase PCODE timeouts during CDCLK freq changingImre Deak3-9/+25
Currently we see sporadic timeouts during CDCLK changing both on BXT and GLK as reported by the Bugzilla: ticket. It's easy to reproduce this by changing the frequency in a tight loop after blanking the display. The upper bound for the completion time is 800us based on my tests, so increase it from the current 500us to 2ms; with that I couldn't trigger the problem either on BXT or GLK. Note that timeouts happened during both the change notification and the voltage level setting PCODE request. (For the latter one BSpec doesn't require us to wait for completion before further HW programming.) This issue is similar to commit 2c7d0602c815 ("drm/i915/gen9: Fix PCODE polling during CDCLK change notification") but there the PCODE request does complete (as shown by the mbox busy flag), only the reply we get from PCODE indicates a failure. So there we keep resending the request until a success reply, here we just have to increase the timeout for the one PCODE request we send. v2: - s/snb_pcode_request/sandybridge_pcode_write_timeout/ (Ville) Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: <stable@vger.kernel.org> # v4.4+ Acked-by: Chris Wilson <chris@chris-wilson.co.uk> (v1) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103326 Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180130142939.17983-1-imre.deak@intel.com (cherry picked from commit e76019a81921e87a4d9e7b3d86102bc708a6c227) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06drm/i915/gvt: Use KVM r/w to access guest opregionTina Zhang2-29/+70
For KVMGT, the guest opregion, which is handled by VFIO, is actually a piece of guest memory which won't be accessed by devices. So, its mfn shouldn't be obtained through VFIO interface. This patch uses KVM r/w interface to access the data in guest opregion. Fix the guest opregion accessing issue when host "intel_iommu=on". v3: - Remove mapped flag for KVM/VFIO usage, as it's useless for KVM. v2: - Set the gpa correctly when invoking KVM r/w operations. (Zhenyu) Signed-off-by: Tina Zhang <tina.zhang@intel.com> Cc: Yan Zhao <yan.y.zhao@intel.com> Cc: Xiong Zhang <xiong.y.zhang@intel.com> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06drm/i915/gvt: Fix aperture read/write emulation when enable x-no-mmap=onChangbin Du4-59/+35
When add 'x-no-mmap=on' for vfio-pci option, aperture access in guest is emulated. But the vgpu_aperture_rw() function take wrong offset when do memcpy, since vgpu->gm.aperture_va is not the base of entire aperture. This mistake cause GPU command in guest get lost and so the seqno is not updated in engine HWSP. This patch fix this, and it also move the emulation code to kvmgt. Because only vfio need to emulate it. Put aperture rw to MMIO emulation path breaks assumptions in xengt. v2: Remove PAGE_ALIGN for size (zhenyu) Fixes: f090a00df9ec ("drm/i915/gvt: Add emulation for BAR2 (aperture) with normal file RW approach") Signed-off-by: Changbin Du <changbin.du@intel.com> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06drm/i915/gvt: only reset execlist state of one engine during VM engine resetWeinan Li3-14/+20
Only reset vgpu execlist state of the exact engine which gets reset request from VM. After read context status from HWSP enabled, KMD will use the saved CSB read pointer but not always read from MMIO. When one engine reset happen, only the read pointer of this engine will be reset, in GVT-g host side also need to align with this policy, otherwise VM may get wrong CSB status after one engine reset compeleted. v2: Split refine and fix patch, code refine(Zhenyu) v3: Move active flag of vgpu scheduler into sched_data(Zhenyu) Cc: Fred Gao <fred.gao@intel.com> Cc: Zhi Wang <zhi.a.wang@intel.com> Cc: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Weinan Li <weinan.z.li@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06drm/i915/gvt: refine intel_vgpu_submission_ops as per engine opsWeinan Li6-18/+20
Using per engine ops will be more flexible, here refine sub-ops(init, clean) as per engine operation align with reset operation. This change also will be used in next fix patch for VM engine reset. Cc: Fred Gao <fred.gao@intel.com> Cc: Zhi Wang <zhi.a.wang@intel.com> Signed-off-by: Weinan Li <weinan.z.li@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-06Merge tag 'pci-v4.16-changes' of ↵Linus Torvalds9-27/+60
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - skip AER driver error recovery callbacks for correctable errors reported via ACPI APEI, as we already do for errors reported via the native path (Tyler Baicar) - fix DPC shared interrupt handling (Alex Williamson) - print full DPC interrupt number (Keith Busch) - enable DPC only if AER is available (Keith Busch) - simplify DPC code (Bjorn Helgaas) - calculate ASPM L1 substate parameter instead of hardcoding it (Bjorn Helgaas) - enable Latency Tolerance Reporting for ASPM L1 substates (Bjorn Helgaas) - move ASPM internal interfaces out of public header (Bjorn Helgaas) - allow hot-removal of VGA devices (Mika Westerberg) - speed up unplug and shutdown by assuming Thunderbolt controllers don't support Command Completed events (Lukas Wunner) - add AtomicOps support for GPU and Infiniband drivers (Felix Kuehling, Jay Cornwall) - expose "ari_enabled" in sysfs to help NIC naming (Stuart Hayes) - clean up PCI DMA interface usage (Christoph Hellwig) - remove PCI pool API (replaced with DMA pool) (Romain Perier) - deprecate pci_get_bus_and_slot(), which assumed PCI domain 0 (Sinan Kaya) - move DT PCI code from drivers/of/ to drivers/pci/ (Rob Herring) - add PCI-specific wrappers for dev_info(), etc (Frederick Lawler) - remove warnings on sysfs mmap failure (Bjorn Helgaas) - quiet ROM validation messages (Alex Deucher) - remove redundant memory alloc failure messages (Markus Elfring) - fill in types for compile-time VGA and other I/O port resources (Bjorn Helgaas) - make "pci=pcie_scan_all" work for Root Ports as well as Downstream Ports to help AmigaOne X1000 (Bjorn Helgaas) - add SPDX tags to all PCI files (Bjorn Helgaas) - quirk Marvell 9128 DMA aliases (Alex Williamson) - quirk broken INTx disable on Ceton InfiniTV4 (Bjorn Helgaas) - fix CONFIG_PCI=n build by adding dummy pci_irqd_intx_xlate() (Niklas Cassel) - use DMA API to get MSI address for DesignWare IP (Niklas Cassel) - fix endpoint-mode DMA mask configuration (Kishon Vijay Abraham I) - fix ARTPEC-6 incorrect IS_ERR() usage (Wei Yongjun) - add support for ARTPEC-7 SoC (Niklas Cassel) - add endpoint-mode support for ARTPEC (Niklas Cassel) - add Cadence PCIe host and endpoint controller driver (Cyrille Pitchen) - handle multiple INTx status bits being set in dra7xx (Vignesh R) - translate dra7xx hwirq range to fix INTD handling (Vignesh R) - remove deprecated Exynos PHY initialization code (Jaehoon Chung) - fix MSI erratum workaround for HiSilicon Hip06/Hip07 (Dongdong Liu) - fix NULL pointer dereference in iProc BCMA driver (Ray Jui) - fix Keystone interrupt-controller-node lookup (Johan Hovold) - constify qcom driver structures (Julia Lawall) - rework Tegra config space mapping to increase space available for endpoints (Vidya Sagar) - simplify Tegra driver by using bus->sysdata (Manikanta Maddireddy) - remove PCI_REASSIGN_ALL_BUS usage on Tegra (Manikanta Maddireddy) - add support for Global Fabric Manager Server (GFMS) event to Microsemi Switchtec switch driver (Logan Gunthorpe) - add IDs for Switchtec PSX 24xG3 and PSX 48xG3 (Kelvin Cao) * tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits) PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller PCI: endpoint: Fix EPF device name to support multi-function devices PCI: endpoint: Add the function number as argument to EPC ops PCI: cadence: Add host driver for Cadence PCIe controller dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller PCI: Add vendor ID for Cadence PCI: Add generic function to probe PCI host controllers PCI: generic: fix missing call of pci_free_resource_list() PCI: OF: Add generic function to parse and allocate PCI resources PCI: Regroup all PCI related entries into drivers/pci/Makefile PCI/DPC: Reformat DPC register definitions PCI/DPC: Add and use DPC Status register field definitions PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error() PCI/DPC: Remove unnecessary RP PIO register structs PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info() PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info() PCI/DPC: Make RP PIO log size check more generic PCI/DPC: Rename local "status" to "dpc_status" PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error() ...
2018-02-06drm/amdgpu: re-enable CGCG on CZ and disable on STShirish S1-1/+1
The CGCG feature on Stoney is causing GFX related issues such as freezes and blank outs. Signed-off-by: Shirish S <shirish.s@amd.com> Reviewed-by: Arindam Nath <arindam.nath@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-02-06Merge branch 'linux-4.16' of git://github.com/skeggsb/linux into drm-nextDave Airlie44-1491/+2723
- initial kepler clock gating support - atomic gamma handling fixes - support for gp108 "secure boot" (enables acceleration, finally) * 'linux-4.16' of git://github.com/skeggsb/linux: drm/nouveau/clk: fix gcc-7 -Wint-in-bool-context warning drm/nouveau/mmu: Fix trailing semicolon drm/nouveau: Introduce NvPmEnableGating option drm/nouveau: Add support for SLCG for Kepler2 drm/nouveau: Add support for BLCG on Kepler2 drm/nouveau: Add support for BLCG on Kepler1 drm/nouveau: Add support for basic clockgating on Kepler1 drm/nouveau/kms/nv50: fix handling of gamma since atomic conversion drm/nouveau/kms/nv50: use INTERPOLATE_257_UNITY_RANGE LUT on newer chipsets drm/nouveau/kms/nv50: use "low res" lut for indexed mode drm/nouveau/kms/nv50: prepare for double-buffered LUTs drm/nouveau/bo: add helper functions for handling pinned+mapped buffers drm/nouveau/fbcon: add module parameter to select bits-per-pixel drm/nouveau/secboot/gp108: implement on top of acr_r370 drm/nouveau/secboot/r370: implement support for booting LS SEC2 ucode drm/nouveau/secboot/r370: move a bunch of r375 stuff to a new implementation drm/nouveau: nouveau: use correct string length drm/nouveau/drm/nouveau/mmu: fix odd_ptr_err.cocci warnings drm/nouveau/pmu/fuc: don't use movw directly anymore
2018-02-05drm/rockchip: lvds: Explicitly include pinctrl headersThierry Reding1-0/+1
The Rockchip LVDS driver fails to build after commit 23c35f48f5fb ("pinctrl: remove include file from <linux/device.h>") because it relies on the pinctrl/consumer.h and pinctrl/devinfo.h being pulled in by the device.h header implicitly. Include these headers explicitly to avoid the build failure. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-02drm/nouveau/clk: fix gcc-7 -Wint-in-bool-context warningArnd Bergmann1-3/+6
gcc thinks that interpreting a multiplication result as a bool is confusing: drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.c: In function 'read_pll': drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.c:133:8: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context] Adding a temporary variable to contain the divisor helps make it clear what is going on and avoids that warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/mmu: Fix trailing semicolonLuis de Bethencourt1-1/+1
The trailing semicolon is an empty statement that does no operation. Removing it since it doesn't do anything. Signed-off-by: Luis de Bethencourt <luisbg@kernel.org> Reviewed-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau: Introduce NvPmEnableGating optionLyude Paul1-1/+3
This adds the NvPmEnableGating config option to nouveau, which can be used to enable or disable clockgating for supported chipsets. Enabling can be done by passing config=NvPmEnableGating=1 To nouveau. If your chipset supports it, you'll see a message in your kernel log indicating that clockgating is enabled. Since clockgating has only had limited testing thus far, we leave this option disabled by default for now. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau: Add support for SLCG for Kepler2Lyude Paul1-0/+93
That's right, there's still more power saving to go! Starting with kepler 2, nvidia hardware has an additional level of clockgating known as second level clockgating. The details of this are not exact, but it seems to work by waiting for a collection of dependent hardware blocks to be gated before taking affect. As with the previous series, this results in another noticeable drop in power consumption and is programmed in the same manner. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau: Add support for BLCG on Kepler2Lyude Paul5-4/+139
Same as the previous patch, but for Kepler2 now Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau: Add support for BLCG on Kepler1Lyude Paul14-1/+442
This enables BLCG optimization for kepler1. When using clockgating, nvidia's firmware has a set of registers which are initially programmed by the vbios with various engine delays and other mysterious settings that are safe enough to bring up the GPU. However, the values used by the vbios are more power hungry then they need to be, so the nvidia driver writes it's own more optimized set of BLCG settings before enabling CG_CTRL. This adds support for programming the optimized BLCG values during engine/subdev init, which enables rather significant power savings. This introduces the nvkm_therm_clkgate_init() helper, which we use to program the optimized BLCG settings before enabling clockgating with nvkm_therm_clkgate_enable. As well, this commit shares a lot more code with Fermi since BLCG is mostly the same there as far as we can tell. In the future, it's likely we'll reformat the clkgate_packs for kepler1 so that they share a list of mmio packs with Fermi. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau: Add support for basic clockgating on Kepler1Lyude Paul9-21/+301
This adds support for enabling automatic clockgating on nvidia GPUs for Kepler1. While this is not technically a clockgating level, it does enable clockgating using the clockgating values initially set by the vbios (which should be safe to use). This introduces two therm helpers for controlling basic clockgating: nvkm_therm_clkgate_enable() - enables clockgating through CG_CTRL, done after initializing the GPU fully nvkm_therm_clkgate_fini() - prepares clockgating for suspend or driver unload A lot of this code was originally going to be based off of fermi; however it turns out that while Fermi's the first line of GPUs that introduced this kind of power saving, Fermi requires more fine tuned control of the CG_CTRL registers from the driver while reclocking that we don't entirely understand yet. For the simple parts we will be sharing with Fermi for certain however, we at least add those into a new subdev/therm/gf100.h header. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/kms/nv50: fix handling of gamma since atomic conversionBen Skeggs1-53/+109
We've still been directly using the legacy crtc gamma_set() hook even after conversion to atomic modesetting. For userspace clients this was fine, however, fbcon will use the atomic property when it's running on an atomic driver, which means we miss its colormap updates - which is particularly bad for 8bpp framebuffers! This commit converts the driver to use the atomic property + the helper function implementing the legacy hook on top of atomic. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80675 Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/kms/nv50: use INTERPOLATE_257_UNITY_RANGE LUT on newer chipsetsBen Skeggs1-4/+4
For some reason forgotten by history, we've been using a 1025-entry LUT mode, and sparsely filling it with the 256-entry LUT we're handed. Until we land support for the full atomic colour management properties, this commit switches to using the 257-entry mode to fix colour mapping with depth 30 framebuffers. Reported-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/kms/nv50: use "low res" lut for indexed modeIlia Mirkin1-2/+4
This is what was done prior to the big refactor in kernel 3.8, and what was done by xf86-video-nv. Experimentally, it seems like there's some sort of issue with the high-res lut to be used there. Tested on G92. This ends up mattering because fbcon/fbdev chooses the C8 fb format for low-vram systems, which can occur with some IGP-based configurations with little "stolen" vram. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80675 Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/kms/nv50: prepare for double-buffered LUTsBen Skeggs2-23/+15
We need to double-buffer LUTs to handle their update atomically. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/bo: add helper functions for handling pinned+mapped buffersBen Skeggs1-0/+28
This is a common, awkward sequence. Let's wrap it up! Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/fbcon: add module parameter to select bits-per-pixelBen Skeggs1-8/+14
Useful for debugging. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/secboot/gp108: implement on top of acr_r370Ben Skeggs7-1/+78
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Gourav Samaiya <gsamaiya@nvidia.com>
2018-02-02drm/nouveau/secboot/r370: implement support for booting LS SEC2 ucodeBen Skeggs1-0/+39
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Gourav Samaiya <gsamaiya@nvidia.com>
2018-02-02drm/nouveau/secboot/r370: move a bunch of r375 stuff to a new implementationBen Skeggs5-86/+163
It's entirely possibly that the other r375 code is relevant to r370 too, but I've not confirmed this, so I'll leave it where it is for now. NVIDIA's copyright headers maintained, as it's still all their code. Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Gourav Samaiya <gsamaiya@nvidia.com>
2018-02-02drm/nouveau: nouveau: use correct string lengthArnd Bergmann1-3/+3
gcc-8 reports drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c: In function 'nvkm_perfmon_mthd': include/linux/string.h:265:9: error: '__builtin_strncpy' specified bound 64 equals destination size [-Werror=stringop-truncation] We need one less byte or call strlcpy() to make it a nul-terminated string. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-02drm/nouveau/drm/nouveau/mmu: fix odd_ptr_err.cocci warningsChristoph Böhmwalder1-1/+2
The kbuild test bot complained about a new coccinelle warning nearby, which sparked a discussion about the assignment to 'memory' inside of the conditional expression. See Link below for the original post. Fix the assignment to silence the coccinelle warning and also make the code look a little nicer. Link: https://lists.freedesktop.org/archives/nouveau/2017-November/029242.html Signed-off-by: Christoph Böhmwalder <christoph@boehmwalder.at> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Karol Herbst <kherbst@redhat.com>
2018-02-02drm/nouveau/pmu/fuc: don't use movw directly anymoreKarol Herbst4-1292/+1292
Fixes failure to compile with recent envyas as a result of the 'movw' alias being removed for v5. A bit of history: v3 only has a 16-bit sign-extended immediate mov op. In order to set the high bits, there's a separate 'sethi' op. envyas validates that the value passed to mov(imm) is between -0x8000 and 0x7fff. In order to simplify macros that load both the low and high word, a 'movw' alias was added which takes an unsigned 16-bit immediate. However the actual hardware op still sign extends. v5 has a full 32-bit immediate mov op. The v3 16-bit immediate mov op is gone (loads 0 into the dst reg). However due to a bug in envyas, the movw alias still existed, and selected the no-longer-present v3 16-bit immediate mov op. As a result usage of movw on v5 is the same as mov with a 0x0 argument. The proper fix throughout is to only ever use the 'movw' alias in combination with 'sethi'. Anything else should get the sign-extended validation to ensure that the intended value ends up in the destination register. Changes in fuc3 binaries is the result of a different encoding being selected for a mov with an 8-bit value. v2: added commit message written by Ilia, thanks for that! v3: messed up rebasing, now it should apply Signed-off-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-02-01Merge tag 'drm-for-v4.16' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds930-96069/+56337
Pull drm updates from Dave Airlie: "This seems to have been a comparatively quieter merge window, I assume due to holidays etc. The "biggest" change is AMD header cleanups, which merge/remove a bunch of them. The AMD gpu scheduler is now being made generic with the etnaviv driver wanting to reuse the code, hopefully other drivers can go in the same direction. Otherwise it's the usual lots of stuff in i915/amdgpu, not so much stuff elsewhere. Core: - Add .last_close and .output_poll_changed helpers to reduce driver footprints - Fix plane clipping - Improved debug printing support - Add panel orientation property - Update edid derived properties at edid setting - Reduction in fbdev driver footprint - Move amdgpu scheduler into core for other drivers to use. i915: - Selftest and IGT improvements - Fast boot prep work on IPS, pipe config - HW workarounds for Cannonlake, Geminilake - Cannonlake clock and HDMI2.0 fixes - GPU cache invalidation and context switch improvements - Display planes cleanup - New PMU interface for perf queries - New firmware support for KBL/SKL - Geminilake HW workaround for perforamce - Coffeelake stolen memory improvements - GPU reset robustness work - Cannonlake horizontal plane flipping - GVT work amdgpu/radeon: - RV and Vega header file cleanups (lots of lines gone!) - TTM operation context support - 48-bit GPUVM support for Vega/RV - ECC support for Vega - Resizeable BAR support - Multi-display sync support - Enable swapout for reserved BOs during allocation - S3 fixes on Raven - GPU reset cleanup and fixes - 2+1 level GPU page table amdkfd: - GFX7/8 SDMA user queues support - Hardware scheduling for multiple processes - dGPU prep work rcar: - Added R8A7743/5 support - System suspend/resume support sun4i: - Multi-plane support for YUV formats - A83T and LVDS support msm: - Devfreq support for GPU tegra: - Prep work for adding Tegra186 support - Tegra186 HDMI support - HDMI2.0 and zpos support by using generic helpers tilcdc: - Misc fixes omapdrm: - Support memory bandwidth limits - DSI command mode panel cleanups - DMM error handling exynos: - drop the old IPP subdriver. etnaviv: - Occlusion query fixes - Job handling fixes - Prep work for hooking in gpu scheduler armada: - Move closer to atomic modesetting - Allow disabling primary plane if overlay is full screen imx: - Format modifier support - Add tile prefetch to PRE - Runtime PM support for PRG ast: - fix LUT loading" * tag 'drm-for-v4.16' of git://people.freedesktop.org/~airlied/linux: (1471 commits) drm/ast: Load lut in crtc_commit drm: Check for lessee in DROP_MASTER ioctl drm: fix gpu scheduler link order drm/amd/display: Demote error print to debug print when ATOM impl missing dma-buf: fix reservation_object_wait_timeout_rcu once more v2 drm/amdgpu: Avoid leaking PM domain on driver unbind (v2) drm/amd/amdgpu: Add Polaris version check drm/amdgpu: Reenable manual GPU reset from sysfs drm/amdgpu: disable MMHUB power gating on raven drm/ttm: Don't unreserve swapped BOs that were previously reserved drm/ttm: Don't add swapped BOs to swap-LRU list drm/amdgpu: only check for ECC on Vega10 drm/amd/powerplay: Fix smu_table_entry.handle type drm/ttm: add VADDR_FLAG_UPDATED_COUNT to correctly update dma_page global count drm: Fix PANEL_ORIENTATION_QUIRKS breaking the Kconfig DRM menuconfig drm/radeon: fill in rb backend map on evergreen/ni. drm/amdgpu/gfx9: fix ngg enablement to clear gds reserved memory (v2) drm/ttm: only free pages rather than update global memory count together drm/amdgpu: fix CPU based VM updates drm/amdgpu: fix typo in amdgpu_vce_validate_bo ...
2018-02-01Merge tag 'clk-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "The core framework has a handful of patches this time around, mostly due to the clk rate protection support added by Jerome Brunet. This feature will allow consumers to lock in a certain rate on the output of a clk so that things like audio playback don't hear pops when the clk frequency changes due to shared parent clks changing rates. Currently the clk API doesn't guarantee the rate of a clk stays at the rate you request after clk_set_rate() is called, so this new API will allow drivers to express that requirement. Beyond this, the core got some debugfs pretty printing patches and a couple minor non-critical fixes. Looking outside of the core framework diff we have some new driver additions and the removal of a legacy TI clk driver. Both of these hit high in the dirstat. Also, the removal of the asm-generic/clkdev.h file causes small one-liners in all the architecture Kbuild files. Overall, the driver diff seems to be the normal stuff that comes all the time to fix little problems here and there and to support new hardware. Summary: Core: - Clk rate protection - Symbolic clk flags in debugfs output - Clk registration enabled clks while doing bookkeeping updates New Drivers: - Spreadtrum SC9860 - HiSilicon hi3660 stub - Qualcomm A53 PLL, SPMI clkdiv, and MSM8916 APCS - Amlogic Meson-AXG - ASPEED BMC Removed Drivers: - TI OMAP 3xxx legacy clk (non-DT) support - asm*/clkdev.h got removed (not really a driver) Updates: - Renesas FDP1-0 module clock on R-Car M3-W - Renesas LVDS module clock on R-Car V3M - Misc fixes to pr_err() prints - Qualcomm MSM8916 audio fixes - Qualcomm IPQ8074 rounded out support for more peripherals - Qualcomm Alpha PLL variants - Divider code was using container_of() on bad pointers - Allwinner DE2 clks on H3 - Amlogic minor data fixes and dropping of CLK_IGNORE_UNUSED - Mediatek clk driver compile test support - AT91 PMC clk suspend/resume restoration support - PLL issues fixed on si5351 - Broadcom IProc PLL calculation updates - DVFS support for Armada mvebu CPU clks - Allwinner fixed post-divider support - TI clkctrl fixes and support for newer SoCs" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (125 commits) clk: aspeed: Handle inverse polarity of USB port 1 clock gate clk: aspeed: Fix return value check in aspeed_cc_init() clk: aspeed: Add reset controller clk: aspeed: Register gated clocks clk: aspeed: Add platform driver and register PLLs clk: aspeed: Register core clocks clk: Add clock driver for ASPEED BMC SoCs clk: mediatek: adjust dependency of reset.c to avoid unexpectedly being built clk: fix reentrancy of clk_enable() on UP systems clk: meson-axg: fix potential NULL dereference in axg_clkc_probe() clk: Simplify debugfs registration clk: Fix debugfs_create_*() usage clk: Show symbolic clock flags in debugfs clk: renesas: r8a7796: Add FDP clock clk: Move __clk_{get,put}() into private clk.h API clk: sunxi: Use CLK_IS_CRITICAL flag for critical clks clk: Improve flags doc for of_clk_detect_critical() arch: Remove clkdev.h asm-generic from Kbuild clk: sunxi-ng: a83t: Add M divider to TCON1 clock clk: Prepare to remove asm-generic/clkdev.h ...
2018-02-01Merge tag 'vfio-v4.16-rc1' of git://github.com/awilliam/linux-vfioLinus Torvalds1-5/+10
Pull VFIO updates from Alex Williamson: - Mask INTx from user if pdev->irq is zero (Alexey Kardashevskiy) - Capability helper cleanup (Alex Williamson) - Allow mmaps overlapping MSI-X vector table with region capability exposing this feature (Alexey Kardashevskiy) - mdev static cleanups (Xiongwei Song) * tag 'vfio-v4.16-rc1' of git://github.com/awilliam/linux-vfio: vfio: mdev: make a couple of functions and structure vfio_mdev_driver static vfio-pci: Allow mapping MSIX BAR vfio: Simplify capability helper vfio-pci: Mask INTx if a device is not capabable of enabling it
2018-02-01Merge tag 'driver-core-4.16-rc1' of ↵Linus Torvalds1-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of "big" driver core patches for 4.16-rc1. The majority of the work here is in the firmware subsystem, with reworks to try to attempt to make the code easier to handle in the long run, but no functional change. There's also some tree-wide sysfs attribute fixups with lots of acks from the various subsystem maintainers, as well as a handful of other normal fixes and changes. And finally, some license cleanups for the driver core and sysfs code. All have been in linux-next for a while with no reported issues" * tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (48 commits) device property: Define type of PROPERTY_ENRTY_*() macros device property: Reuse property_entry_free_data() device property: Move property_entry_free_data() upper firmware: Fix up docs referring to FIRMWARE_IN_KERNEL firmware: Drop FIRMWARE_IN_KERNEL Kconfig option USB: serial: keyspan: Drop firmware Kconfig options sysfs: remove DEBUG defines sysfs: use SPDX identifiers drivers: base: add coredump driver ops sysfs: add attribute specification for /sysfs/devices/.../coredump test_firmware: fix missing unlock on error in config_num_requests_store() test_firmware: make local symbol test_fw_config static sysfs: turn WARN() into pr_warn() firmware: Fix a typo in fallback-mechanisms.rst treewide: Use DEVICE_ATTR_WO treewide: Use DEVICE_ATTR_RO treewide: Use DEVICE_ATTR_RW sysfs.h: Use octal permissions component: add debugfs support bus: simple-pm-bus: convert bool SIMPLE_PM_BUS to tristate ...
2018-02-01drm/i915/ppgtt: Pin page directories before allocationChris Wilson1-4/+10
Commit e2b763caa6eb ("drm/i915: Remove bitmap tracking for used-pdpes") believed that because it did not insert its freshly allocated page directory into the pd tree, it was safe from the shrinker. I failed to heed the lesson learnt from commit dd19674bacba ("drm/i915: Remove bitmap tracking for used-ptes") that we need to pin all the levels in the tree before hitting the shrinker or else the shrinker may free an upper layer as we proceed to allocate the tree. Thus leaving dangling pointers everywhere and a GPF should we hit direct reclaim at just the wrong moment. CPU: 0 PID: 7374 Comm: chromium Tainted: P O 4.14.13-1-ARCH #1 Hardware name: Apple Inc. MacBookPro12,1/Mac-E43C1C25D4880AD6, BIOS MBP121.88Z.0167.B33.1706181928 06/18/2017 task: ffff994f696c2c40 task.stack: ffffb1a789d4c000 RIP: 0010:gen8_ppgtt_set_pde.isra.40+0x48/0x70 [i915] RSP: 0018:ffffb1a789d4f940 EFLAGS: 00010206 RAX: 81c1788cc4f68138 RBX: ffff994f54db8000 RCX: ffff994f696c2c40 RDX: 000000023bc73003 RSI: ffff994d598b6b80 RDI: ffff994f54db8000 RBP: ffff994d598b6b80 R08: 0000000000000000 R09: 0000000000000000 R10: ffffb1a789d4f550 R11: ffff994eaf3c3208 R12: 0000000000000027 R13: 0000000000005000 R14: 0000000004e8f000 R15: ffff994f54dba000 FS: 00007f585886aa00(0000) GS:ffff994faec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004ac8e8 CR3: 00000002552c8004 CR4: 00000000003606f0 Call Trace: gen8_ppgtt_alloc_pdp+0x178/0x320 [i915] gen8_ppgtt_alloc_4lvl+0x5f/0x150 [i915] ppgtt_bind_vma+0x30/0x70 [i915] i915_vma_bind+0x68/0xd0 [i915] __i915_vma_do_pin+0x2d6/0x3a0 [i915] eb_lookup_vmas+0x7a2/0xb50 [i915] i915_gem_do_execbuffer+0x4d7/0x10e0 [i915] ? sock_wfree+0x34/0x60 ? unix_stream_read_generic+0x1f9/0x7e0 ? import_iovec+0x37/0xd0 ? i915_gem_execbuffer2+0x5d/0x390 [i915] i915_gem_execbuffer2+0x1b7/0x390 [i915] ? i915_gem_execbuffer+0x2d0/0x2d0 [i915] drm_ioctl_kernel+0x59/0xb0 [drm] drm_ioctl+0x2d5/0x370 [drm] ? i915_gem_execbuffer+0x2d0/0x2d0 [i915] ? __seccomp_filter+0x3b/0x260 do_vfs_ioctl+0xa1/0x610 ? syscall_trace_enter+0xdb/0x2b0 SyS_ioctl+0x74/0x80 do_syscall_64+0x55/0x110 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x7f584fa82d27 RSP: 002b:00007ffee14a7828 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000003b0126a1030 RCX: 00007f584fa82d27 RDX: 00007ffee14a7870 RSI: 0000000040406469 RDI: 0000000000000080 RBP: 00007ffee14a7870 R08: 0000000000000002 R09: 0000000000000077 R10: 00007f5839f2b780 R11: 0000000000000246 R12: 0000000040406469 R13: 0000000000000080 R14: 00007f5842b00040 R15: 0000000000000000 Code: 01 00 83 81 58 0a 00 00 01 48 2b 05 13 9d fd c9 48 c1 f8 06 48 c1 e0 0c 48 8d 04 d0 48 8b 56 08 48 03 05 0c 9d fd c9 48 83 ca 03 <48> 89 10 83 a9 58 0a 00 00 01 65 ff 0d 37 03 fb 3e 74 02 f3 c3 RIP: gen8_ppgtt_set_pde.isra.40+0x48/0x70 [i915] RSP: ffffb1a789d4f940 Reported-by: Eric Blau <eblau@eblau.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104773 Fixes: e2b763caa6eb ("drm/i915: Remove bitmap tracking for used-pdpes") References: dd19674bacba ("drm/i915: Remove bitmap tracking for used-ptes") Testcase: igt/drv_selftest/live_gtt (igt_ppgtt_shrink_boom) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180131214440.7141-1-chris@chris-wilson.co.uk Reviewed-by: Matthew Auld <matthew.auld@intel.com> (cherry picked from commit b715a2f0c7714a399e7f8e951cc8dea9cd4eeb4b) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-01drm/i915: Always run hangcheck while the GPU is busyChris Wilson4-21/+6
Previously, we relied on only running the hangcheck while somebody was waiting on the GPU, in order to minimise the amount of time hangcheck had to run. (If nobody was watching the GPU, nobody would notice if the GPU wasn't responding -- eventually somebody would care and so kick hangcheck into action.) However, this falls apart from around commit 4680816be336 ("drm/i915: Wait first for submission, before waiting for request completion"), as not all waiters declare themselves to hangcheck and so we could switch off hangcheck and miss GPU hangs even when waiting under the struct_mutex. If we enable hangcheck from the first request submission, and let it run until the GPU is idle again, we forgo all the complexity involved with only enabling around waiters. We just have to remember to be careful that we do not declare a GPU hang when idly waiting for the next request to be come ready, as we will run hangcheck continuously even when the engines are stalled waiting for external events. This should be true already as we should only be tracking requests submitted to hardware for execution as an indicator that the engine is busy. Fixes: 4680816be336 ("drm/i915: Wait first for submission, before waiting for request completion" Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104840 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180129144104.3921-1-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> (cherry picked from commit 889230489b6b138ba97ba2f13fc9644a3d16d0d2) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-01Revert "drm/i915: mark all device info struct with __initconst"Lionel Landwerlin1-47/+47
This reverts commit 5b54eddd3920e9f6f1a6d972454baf350cbae77e. Conflicts: drivers/gpu/drm/i915/i915_pci.c Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104805 Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Fixes: 5b54eddd3920 ("drm/i915: mark all device info struct with __initconst") Link: https://patchwork.freedesktop.org/patch/msgid/20180129083346.29173-1-lionel.g.landwerlin@intel.com (cherry picked from commit 5db47e37b38755c5e26e6b8fbc1a32ce73495940) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-01drm/i915/edp: Do not do link training fallback or prune modes on EDPManasi Navare1-9/+17
In case of eDP because the panel has a fixed mode, the link rate and lane count at which it is trained corresponds to the link BW required to support the native resolution of the panel. In case of panles with lower resolutions where fewer lanes are hooked up internally, that number is reflected in the MAX_LANE_COUNT DPCD register of the panel. So it is pointless to fallback to lower link rate/lane count in case of link training failure on eDP connector since the lower link BW will not support the native resolution of the panel and we cannot prune the preferred mode on the eDP connector. In case of Link training failure on the eDP panel, something is wrong in the HW internally and hence driver errors out with a loud and clear DRM_ERROR message. v2: * Fix the DEBUG_ERROR and add {} in else (Ville Syrjala) Cc: Clinton Taylor <clinton.a.taylor@intel.com> Cc: Jim Bride <jim.bride@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com> Reference: https://bugs.freedesktop.org/show_bug.cgi?id=103369 Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1507835618-23051-1-git-send-email-manasi.d.navare@intel.com (cherry picked from commit c0cfb10d9e1de490e36d3b9d4228c0ea0ca30677) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-01drm/i915: Check for fused or unused pipesMika Kahola1-1/+1
We may have fused or unused pipes in our system. Let's check that the pipe in question is within limits of accessible pipes. In case, that we are not able to access the pipe, we return early with a warning. v2: Rephrasing of the commit message (Jani) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103206 Reported-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Jaswinder Singh Rajput <jaswinder@perfectintelligent.com> Suggested-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Mika Kahola <mika.kahola@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1513584243-12607-1-git-send-email-mika.kahola@intel.com (cherry picked from commit 0b7029b7e43fda1304c181a3ade0b429b9edcd9d) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: <stable@vger.kernel.org> # v4.10+
2018-02-01drm/i915: Protect WC stash allocation against direct reclaimChris Wilson1-7/+25
As we attempt to allocate pages for use in a new WC stash, direct reclaim may run underneath us and fill up the WC stash. We have to be careful then not to overflow the pvec. Fixes: 66df1014efba ("drm/i915: Keep a small stash of preallocated WC pages") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103109 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180121173143.17090-1-chris@chris-wilson.co.uk (cherry picked from commit 073cd7816685ac77c6d8b4d321a5586c9177b76a) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-01drm/i915: Only attempt to scan the requested number of shrinker slabsChris Wilson1-2/+2
Since commit 4e773c3a8a69 ("drm/i915: Wire up shrinkctl->nr_scanned"), we track the number of objects we scan and do not wish to exceed that as it will overly penalise our own slabs under mempressure. Given that we now know the target number of objects to scan, use that as our guide for deciding to shrink as opposed to the number of objects we manage to shrink (which doesn't correspond to the numbers we report to shrinkctl). Fixes: 4e773c3a8a69 ("drm/i915: Wire up shrinkctl->nr_scanned") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180115212455.24046-2-chris@chris-wilson.co.uk Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> (cherry picked from commit 29d384e34c55d696cf37bd4159e05f4b14d45da0) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-01drm/i915: Always call to intel_display_set_init_power() in resume_early.Maarten Lankhorst1-0/+2
intel_power_domains_init_hw() calls set_init_power, but when using runtime power management this call is skipped. This prevents hw readout from taking place. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104172 Link: https://patchwork.freedesktop.org/patch/msgid/20180116155324.75120-1-maarten.lankhorst@linux.intel.com Fixes: bc87229f323e ("drm/i915/skl: enable PC9/10 power states during suspend-to-idle") Cc: Nivedita Swaminathan <nivedita.swaminathan@intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Patrik Jakobsson <patrik.jakobsson@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: <stable@vger.kernel.org> # v4.5+ Reviewed-by: Imre Deak <imre.deak@intel.com> (cherry picked from commit ac25dfed15d470d7f23dd817e965b54aa3f94a1e) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-02-01drm/i915/gvt: cancel scheduler timer when no vGPU existsZhenyu Wang1-0/+7
Stop gvt scheduler timer if no vGPU exists, otherwise it keeps gvt service thread busy to handle request schedule event but no actual schedule activity required. Reviewed-by: Zhi Wang <zhi.a.wang@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 21:50:28 +0000