- 30 Jan, 2018 5 commits
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Christian König authored
The vm pointer can become invalid as soon as the lock is released. Signed-off-by:
Christian König <christian.koenig@amd.com> Acked-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Christian König authored
The root PD can be evicted directly after allocating it, just validate it on first use. Signed-off-by:
Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by:
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Huang Rui authored
It must use queue id 0, because CGPG_IDLE/SAVE/LOAD/RUN only can be issued on queue 0. Signed-off-by:
Huang Rui <ray.huang@amd.com> Acked-by:
Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by:
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Tom St Denis authored
The buf pointer was not being incremented inside the loop meaning the same block of data would be read or written repeatedly. (v2) Change 'buf' pointer to uint8_t* type Cc: stable@vger.kernel.org Fixes: 09ac4fcb ("drm/ttm: Implement vm_operations_struct.access v2") Signed-off-by:
Tom St Denis <tom.stdenis@amd.com> Reviewed-by:
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Roger He authored
Missed in the patche: dc947770 drm/ttm: enable swapout for reserved BOs during allocation. don't unreserve the BO if it is not reserved by itself. Signed-off-by:
Roger He <Hongbo.He@amd.com> Reviewed-by:
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- 25 Jan, 2018 2 commits
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Dave Airlie authored
Merge tag 'drm-misc-next-fixes-2018-01-18' of git://anongit.freedesktop.org/drm/drm-misc into drm-next Fixes for 4.16: Fixes one Kconfig issue and a enable some panels to work properly. There is also a fix of error code return in sun4i. * tag 'drm-misc-next-fixes-2018-01-18' of git://anongit.freedesktop.org/drm/drm-misc: drm: Fix PANEL_ORIENTATION_QUIRKS breaking the Kconfig DRM menuconfig drm/panel: lvds: Handle the optional regulator case properly drm/sun4i: Fix error code in sun4i_tcon_bind()
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
A few more fixes for 4.16, nothing major. A few more fixes for 4.16. This is on top of the pull request from last week. Most notable change here is a fix to the link order for the now separate from amdgpu GPU scheduler to fix crashes when the modules are build into the kernel rather than as modules. * 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux: drm: fix gpu scheduler link order drm/amd/display: Demote error print to debug print when ATOM impl missing 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/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 drm/amdgpu: fix amdgpu_vm_pasid_fault_credit drm/ttm: check the return value of register_shrinker drm/radeon: fix sparse warning: Should it be static?
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- 24 Jan, 2018 2 commits
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Christian König authored
It should initialize before the drivers using it. Signed-off-by:
Mike Lothian <mike@fireburn.co.uk> Signed-off-by:
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Harry Wentland authored
I assumed wrongfully that all relevant functions should be implemented. Apparently this isn't the case. Demote the print to debug level for now. Signed-off-by:
Harry Wentland <harry.wentland@amd.com> Reviewed-by:
Tony Cheng <Tony.Cheng@amd.com> Acked-by:
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- 23 Jan, 2018 3 commits
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Alex Deucher authored
We only support vga_switcheroo and runtime pm on PX/HG systems so forcing runpm to 1 doesn't do anything useful anyway. Only call vga_switcheroo_init_domain_pm_ops() for PX/HG so that the cleanup path is correct as well. This mirrors what radeon does as well. v2: rework the patch originally sent by Lukas (Alex) Acked-by:
Lukas Wunner <lukas@wunner.de> Reported-by:
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James Zhu authored
Add Polaris version check if firmware support UVD encode Reviewed-by:
James Zhu <James.Zhu@amd.com> Signed-off-by:
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Andrey Grodzovsky authored
Otherwise it keeps rejecting the reset. Signed-off-by:
Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by:
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- 19 Jan, 2018 1 commit
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Huang Rui authored
MMHUB power gating still has issue, and doesn't work on raven at current. So disable it for the moment. Signed-off-by:
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- 18 Jan, 2018 6 commits
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Felix Kuehling authored
If ttm_bo_swapout doesn't own the lock, don't release it. Someone else probably depends on it still being locked. Signed-off-by:
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Felix Kuehling authored
A BO that's already swapped would be added back to the swap-LRU list for example if its validation failed under high memory pressure. This could later lead to swapping it out again and leaking previous swap storage. This commit adds a condition to prevent that from happening. v2: Check page_flags instead of swap_storage Signed-off-by:
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Alex Deucher authored
RV doesn't support it. Reviewed-by:
Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by:
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Andrey Grodzovsky authored
The handle describes kernel logical address, should be unsigned long and not uint32_t. Fixes KASAN error and GFP on driver unload. Reviewed-by:
Rex Zhu <Rex.Zhu@amd.com> Reviewed-by:
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Roger He authored
add this for correctly updating global mem count in ttm_mem_zone. before that when ttm_mem_global_alloc_page fails, we would update all dma_page's global mem count in ttm_dma->pages_list. but actually here we should not update for the last dma_page. v2: only the update of last dma_page is not right v3: use lower bits of dma_page vaddr Signed-off-by:
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Dave Airlie authored
Merge tag 'drm-amdkfd-next-fixes-2018-01-15' of git://people.freedesktop.org/~gabbayo/linux into drm-next - fix NULL pointer dereference - fix compiler warning on large define values - remove unnecessary call to execute_queues_cpsch * tag 'drm-amdkfd-next-fixes-2018-01-15' of git://people.freedesktop.org/~gabbayo/linux: drm/amdkfd: Fix potential NULL pointer dereferences drm/amdkfd: add ull suffix to 64bit defines drm/amdkfd: don't always call execute_queues_cpsch() drm/amdkfd: Fix return value 0 when execute_queues_cpsch fails
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- 17 Jan, 2018 2 commits
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Dave Airlie authored
Linux 4.15-rc8 Daniel requested this for so the intel CI won't fall over on drm-next so often.
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Hans de Goede authored
All Kconfig menu menu entries should have a depends on MENU_OPTION, the menu stops after the first Kconfig entry without this depends on. Since the PANEL_ORIENTATION_QUIRKS option is also used outside of DRM, it deliberately does not have a depends on DRM, but this causes all items after it to show as separate items rather then under the DRM menuconfig. This commit moves PANEL_ORIENTATION_QUIRKS to the end of the drm Kconfig file, grouping it with DRM_LIB_RANDOM which also does not depend on DRM, fixing the DRM menuconfig. Fixes: 404d1a3e ("drm: Add panel orientation quirks, v6.") Cc: Chris Wilson <chris@chris-wilson.co.uk> Reported-by:
Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180117081032.6411-1-hdegoede@redhat.com
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- 16 Jan, 2018 8 commits
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Dave Airlie authored
This looks to have never gotten filled in, and it seems to trigger a bug in mesa. Reviewed-by:
Roland Scheidegger <sroland@vmware.com> Reported-by:
Dave Airlie <airlied@redhat.com> Signed-off-by:
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Junwei Zhang authored
v2: fix register access Signed-off-by:
Ken Wang <ken.wang@amd.com> Acked-by:
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Roger He authored
if ttm_get_pages or ttm_mem_global_alloc_page fail, should not update global memory count. Signed-off-by:
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Christian König authored
That got accidentially removed. Signed-off-by:
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Christian König authored
Otherwise buffer placement is very restrictive and might fail. Fixes: "drm/amdgpu: fix VCE buffer placement restrictions v2" Signed-off-by:
Deng, Emily <Emily.Deng@amd.com> Signed-off-by:
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Christian König authored
As soon as the lock is dropped the VM pointer can be invalid. Signed-off-by:
Chunming Zhou <david1.zhou@amd.com> Signed-off-by:
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Roger He authored
This fixes the build warning: "ignoring return value of 'register_shrinker', declared with attribute warn_unused_result [-Wunused-result]" Signed-off-by:
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Dmitry Rozhkov authored
Impact: make symbol static. Fix this sparse warning: drivers/gpu/drm/radeon/radeon_dp_mst.c:332:38: warning: symbol 'mst_cbs' was not declared. Should it be static? Signed-off-by:
Dmitry Rozhkov <dmitry.rozhkov@linux.intel.com> Signed-off-by:
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- 15 Jan, 2018 2 commits
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Maxime Ripard authored
The devm_regulator_get_optional function, unlike it was assumed in the commit a1c55bcc ("drm/panel: lvds: Add support for the power-supply property"), is actually returning an error pointer with -ENODEV instead of NULL when there's no regulator to find. Make sure we handle that case properly. Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180110155941.16109-1-maxime.ripard@free-electrons.com
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Dan Carpenter authored
We accidentally passed the wrong variable to PTR_ERR(). Fixes: a0c1214e ("drm/sun4i: Add LVDS support") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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- 14 Jan, 2018 9 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixlet from Thomas Gleixner. Remove a warning about lack of compiler support for retpoline that most people can't do anything about, so it just annoys them needlessly. * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/retpoline: Remove compile time warning
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: "One fix for an oops at boot if we take a hotplug interrupt before we are ready to handle it. The bulk is patches to implement mitigation for Meltdown, see the change logs for more details. Thanks to: Nicholas Piggin, Michael Neuling, Oliver O'Halloran, Jon Masters, Jose Ricardo Ziviani, David Gibson" * tag 'powerpc-4.15-7' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/powernv: Check device-tree for RFI flush settings powerpc/pseries: Query hypervisor for RFI flush settings powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti powerpc/64s: Add support for RFI flush of L1-D cache powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL powerpc/64: Convert the syscall exit path to use RFI_TO_USER/KERNEL powerpc/64s: Simple RFI macro conversions powerpc/64: Add macros for annotating the destination of rfid/hrfid powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper powerpc/pseries: Make RAS IRQ explicitly dependent on DLPAR WQ
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Thomas Gleixner authored
Remove the compile time warning when CONFIG_RETPOLINE=y and the compiler does not have retpoline support. Linus rationale for this is: It's wrong because it will just make people turn off RETPOLINE, and the asm updates - and return stack clearing - that are independent of the compiler are likely the most important parts because they are likely the ones easiest to target. And it's annoying because most people won't be able to do anything about it. The number of people building their own compiler? Very small. So if their distro hasn't got a compiler yet (and pretty much nobody does), the warning is just annoying crap. It is already properly reported as part of the sysfs interface. The compile-time warning only encourages bad things. Fixes: 76b04384 ("x86/retpoline: Add initial retpoline support") Requested-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: gnomes@lxorguk.ukuu.org.uk Cc: Rik van Riel <riel@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: thomas.lendacky@amd.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Jiri Kosina <jikos@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Kees Cook <keescook@google.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linux-foundation.org> Link: https://lkml.kernel.org/r/CA+55aFzWgquv4i6Mab6bASqYXg3ErV3XDFEYf=GEcCDQg5uAtw@mail.gmail.com
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull NVMe fix from Jens Axboe: "Just a single fix for nvme over fabrics that should go into 4.15" * 'for-linus' of git://git.kernel.dk/linux-block: nvme-fabrics: initialize default host->id in nvmf_host_default()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 pti updates from Thomas Gleixner: "This contains: - a PTI bugfix to avoid setting reserved CR3 bits when PCID is disabled. This seems to cause issues on a virtual machine at least and is incorrect according to the AMD manual. - a PTI bugfix which disables the perf BTS facility if PTI is enabled. The BTS AUX buffer is not globally visible and causes the CPU to fault when the mapping disappears on switching CR3 to user space. A full fix which restores BTS on PTI is non trivial and will be worked on. - PTI bugfixes for EFI and trusted boot which make sure that the user space visible page table entries have the NX bit cleared - removal of dead code in the PTI pagetable setup functions - add PTI documentation - add a selftest for vsyscall to verify that the kernel actually implements what it advertises. - a sysfs interface to expose vulnerability and mitigation information so there is a coherent way for users to retrieve the status. - the initial spectre_v2 mitigations, aka retpoline: + The necessary ASM thunk and compiler support + The ASM variants of retpoline and the conversion of affected ASM code + Make LFENCE serializing on AMD so it can be used as speculation trap + The RSB fill after vmexit - initial objtool support for retpoline As I said in the status mail this is the most of the set of patches which should go into 4.15 except two straight forward patches still on hold: - the retpoline add on of LFENCE which waits for ACKs - the RSB fill after context switch Both should be ready to go early next week and with that we'll have covered the major holes of spectre_v2 and go back to normality" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits) x86,perf: Disable intel_bts when PTI security/Kconfig: Correct the Documentation reference for PTI x86/pti: Fix !PCID and sanitize defines selftests/x86: Add test_vsyscall x86/retpoline: Fill return stack buffer on vmexit x86/retpoline/irq32: Convert assembler indirect jumps x86/retpoline/checksum32: Convert assembler indirect jumps x86/retpoline/xen: Convert Xen hypercall indirect jumps x86/retpoline/hyperv: Convert assembler indirect jumps x86/retpoline/ftrace: Convert ftrace assembler indirect jumps x86/retpoline/entry: Convert entry assembler indirect jumps x86/retpoline/crypto: Convert crypto assembler indirect jumps x86/spectre: Add boot time option to select Spectre v2 mitigation x86/retpoline: Add initial retpoline support objtool: Allow alternatives to be ignored objtool: Detect jumps to retpoline thunks x86/pti: Make unpoison of pgd for trusted boot work for real x86/alternatives: Fix optimize_nops() checking sysfs/cpu: Fix typos in vulnerability documentation x86/cpu/AMD: Use LFENCE_RDTSC in preference to MFENCE_RDTSC ... -
Peter Zijlstra authored
The intel_bts driver does not use the 'normal' BTS buffer which is exposed through the cpu_entry_area but instead uses the memory allocated for the perf AUX buffer. This obviously comes apart when using PTI because then the kernel mapping; which includes that AUX buffer memory; disappears. Fixing this requires to expose a mapping which is visible in all context and that's not trivial. As a quick fix disable this driver when PTI is enabled to prevent malfunction. Fixes: 385ce0ea ("x86/mm/pti: Add Kconfig") Reported-by:
Vince Weaver <vincent.weaver@maine.edu> Reported-by:
Robert Święcki <robert@swiecki.net> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by:
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W. Trevor King authored
When the config option for PTI was added a reference to documentation was added as well. But the documentation did not exist at that point. The final documentation has a different file name. Fix it up to point to the proper file. Fixes: 385ce0ea ("x86/mm/pti: Add Kconfig") Signed-off-by:
W. Trevor King <wking@tremily.us> Signed-off-by:
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Thomas Gleixner authored
The switch to the user space page tables in the low level ASM code sets unconditionally bit 12 and bit 11 of CR3. Bit 12 is switching the base address of the page directory to the user part, bit 11 is switching the PCID to the PCID associated with the user page tables. This fails on a machine which lacks PCID support because bit 11 is set in CR3. Bit 11 is reserved when PCID is inactive. While the Intel SDM claims that the reserved bits are ignored when PCID is disabled, the AMD APM states that they should be cleared. This went unnoticed as the AMD APM was not checked when the code was developed and reviewed and test systems with Intel CPUs never failed to boot. The report is against a Centos 6 host where the guest fails to boot, so it's not yet clear whether this is a virt issue or can happen on real hardware too, but thats irrelevant as the AMD APM clearly ask for clearing the reserved bits. Make sure that on non PCID machines bit 11 is not set by the page table switching code. Andy suggested to rename the related bits and masks so they are clearly describing what they should be used for, which is done as well for clarity. That split could have been done with alternatives but the macro hell is horrible and ugly. This can be done on top if someone cares to remove the extra orq. For now it's a straight forward fix. Fixes: 6fd166aa ("x86/mm: Use/Fix PCID to optimize user/kernel switches") Reported-by:
Laura Abbott <labbott@redhat.com> Signed-off-by:
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