linux/drivers/gpu, branch v3.18

Merge tag 'drm-intel-fixes-2014-12-04' of git://anongit.freedesktop.org/drm-intel into drm-fixes

2014-12-05T01:12:29Z

Silence some pch fifo underrun reports and panel locking backtraces, both cc: stable. * tag 'drm-intel-fixes-2014-12-04' of git://anongit.freedesktop.org/drm-intel: drm/i915: Unlock panel even when LVDS is disabled drm/i915: More cautious with pch fifo underruns

drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6

2014-12-02T20:45:33Z

I was unable too boot 3.18.0-rc6 because of the following kernel panic in drm_calc_vbltimestamp_from_scanoutpos(): [drm] Initialized drm 1.1.0 20060810 [drm] radeon kernel modesetting enabled. [drm] initializing kernel modesetting (RV100 0x1002:0x515E 0x15D9:0x8080). [drm] register mmio base: 0xC8400000 [drm] register mmio size: 65536 radeon 0000:0b:01.0: VRAM: 128M 0x00000000D0000000 - 0x00000000D7FFFFFF (16M used) radeon 0000:0b:01.0: GTT: 512M 0x00000000B0000000 - 0x00000000CFFFFFFF [drm] Detected VRAM RAM=128M, BAR=128M [drm] RAM width 16bits DDR [TTM] Zone kernel: Available graphics memory: 3829346 kiB [TTM] Zone dma32: Available graphics memory: 2097152 kiB [TTM] Initializing pool allocator [TTM] Initializing DMA pool allocator [drm] radeon: 16M of VRAM memory ready [drm] radeon: 512M of GTT memory ready. [drm] GART: num cpu pages 131072, num gpu pages 131072 [drm] PCI GART of 512M enabled (table at 0x0000000037880000). radeon 0000:0b:01.0: WB disabled radeon 0000:0b:01.0: fence driver on ring 0 use gpu addr 0x00000000b0000000 and cpu addr 0xffff8800bbbfa000 [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [drm] Driver supports precise vblank timestamp query. [drm] radeon: irq initialized. [drm] Loading R100 Microcode radeon 0000:0b:01.0: Direct firmware load for radeon/R100_cp.bin failed with error -2 radeon_cp: Failed to load firmware "radeon/R100_cp.bin" [drm:r100_cp_init] *ERROR* Failed to load firmware! radeon 0000:0b:01.0: failed initializing CP (-2). radeon 0000:0b:01.0: Disabling GPU acceleration [drm] radeon: cp finalized BUG: unable to handle kernel NULL pointer dereference at 000000000000025c IP: [] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320 PGD 0 Oops: 0000 [#1] SMP Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.18.0-rc6-4-default #2649 Hardware name: Supermicro X7DB8/X7DB8, BIOS 6.00 07/26/2006 task: ffff880234da2010 ti: ffff880234da4000 task.ti: ffff880234da4000 RIP: 0010:[] [] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320 RSP: 0000:ffff880234da7918 EFLAGS: 00010086 RAX: ffffffff81557890 RBX: 0000000000000000 RCX: ffff880234da7a48 RDX: ffff880234da79f4 RSI: 0000000000000000 RDI: ffff880232e15000 RBP: ffff880234da79b8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000a R11: 0000000000000001 R12: ffff880232dda1c0 R13: ffff880232e1518c R14: 0000000000000292 R15: ffff880232e15000 FS: 0000000000000000(0000) GS:ffff88023fc40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000000000025c CR3: 0000000002014000 CR4: 00000000000007e0 Stack: ffff880234da79d8 0000000000000286 ffff880232dcbc00 0000000000002480 ffff880234da7958 0000000000000296 ffff880234da7998 ffffffff8151b51d ffff880234da7a48 0000000032dcbeb0 ffff880232dcbc00 ffff880232dcbc58 Call Trace: [] ? drm_vma_offset_remove+0x1d/0x110 [] radeon_get_vblank_timestamp_kms+0x38/0x60 [] ? ttm_bo_release_list+0xba/0x180 [] drm_get_last_vbltimestamp+0x41/0x70 [] vblank_disable_and_save+0x73/0x1d0 [] ? try_to_del_timer_sync+0x4f/0x70 [] drm_vblank_cleanup+0x65/0xa0 [] radeon_irq_kms_fini+0x1a/0x70 [] r100_init+0x26e/0x410 [] radeon_device_init+0x7ae/0xb50 [] radeon_driver_load_kms+0x8f/0x210 [] drm_dev_register+0xb5/0x110 [] drm_get_pci_dev+0x8f/0x200 [] radeon_pci_probe+0xad/0xe0 [] local_pci_probe+0x45/0xa0 [] pci_device_probe+0xd1/0x130 [] driver_probe_device+0x12d/0x3e0 [] __driver_attach+0x9b/0xa0 [] ? __device_attach+0x40/0x40 [] bus_for_each_dev+0x63/0xa0 [] driver_attach+0x1e/0x20 [] bus_add_driver+0x180/0x240 [] driver_register+0x64/0xf0 [] __pci_register_driver+0x4c/0x50 [] drm_pci_init+0xf5/0x120 [] ? ttm_init+0x6a/0x6a [] radeon_init+0x97/0xb5 [] do_one_initcall+0xbc/0x1f0 [] ? __wake_up+0x48/0x60 [] kernel_init_freeable+0x18a/0x215 [] ? initcall_blacklist+0xc0/0xc0 [] ? rest_init+0x80/0x80 [] kernel_init+0xe/0xf0 [] ret_from_fork+0x7c/0xb0 [] ? rest_init+0x80/0x80 Code: 45 ac 0f 88 a8 01 00 00 3b b7 d0 01 00 00 49 89 ff 0f 83 99 01 00 00 48 8b 47 20 48 8b 80 88 00 00 00 48 85 c0 0f 84 cd 01 00 00 <41> 8b b1 5c 02 00 00 41 8b 89 58 02 00 00 89 75 98 41 8b b1 60 RIP [] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320 RSP CR2: 000000000000025c ---[ end trace ad2c0aadf48e2032 ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009 It has helped me to add a NULL pointer check that was suggested at http://lists.freedesktop.org/archives/dri-devel/2014-October/070663.html I am not familiar with the code. But the change looks sane and we need something fast at this stage of 3.18 development. Suggested-by: Helge Deller Signed-off-by: Petr Mladek Tested-by: Petr Mladek Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/radeon: Ignore RADEON_GEM_GTT_WC on 32-bit x86

2014-12-02T20:45:32Z

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84627 Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/radeon: sync all BOs involved in a CS v2

2014-12-02T20:45:32Z

Not just the userspace relocs, otherwise we won't wait for a swapped out page tables to be swapped in again. v2: rebased on Alex current drm-fixes-3.18 Signed-off-by: Christian König Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher

drm/i915: Unlock panel even when LVDS is disabled

2014-12-02T13:18:29Z

Otherwise we'll have backtraces in assert_panel_unlocked because the BIOS locks the register. In the reporter's case this regression was introduced in commit c31407a3672aaebb4acddf90944a114fa5c8af7b Author: Chris Wilson Date: Thu Oct 18 21:07:01 2012 +0100 drm/i915: Add no-lvds quirk for Supermicro X7SPA-H Reported-by: Alexey Orishko Cc: Alexey Orishko Cc: stable@vger.kernel.org Cc: Chris Wilson Cc: Francois Tigeot Signed-off-by: Daniel Vetter Tested-by: Alexey Orishko Signed-off-by: Jani Nikula

drm/i915: More cautious with pch fifo underruns

2014-12-02T09:23:13Z

Apparently PCH fifo underruns are tricky, we have plenty reports that we see the occasional underrun (especially at boot-up). So for a change let's see what happens when we don't re-enable pch fifo underrun reporting when the pipe is disabled. This means that the kernel can't catch pch fifo underruns when they happen (except when all pipes are on on the pch). But we'll still catch underruns when disabling the pipe again. So not a terrible reduction in test coverage. Since the DRM_ERROR is new and hence a regression plan B would be to revert it back to a debug output. Which would be a lot worse than this hack for underrun test coverage in the wild. See the referenced discussions for more. References: http://mid.gmane.org/CA+gsUGRfGe3t4NcjdeA=qXysrhLY3r4CEu7z4bjTwxi1uOfy+g@mail.gmail.com Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=85898 References: https://bugs.freedesktop.org/show_bug.cgi?id=85898 References: https://bugs.freedesktop.org/show_bug.cgi?id=86233 References: https://bugs.freedesktop.org/show_bug.cgi?id=86478 Signed-off-by: Daniel Vetter Tested-by: lu hua Reviewed-by: Paulo Zanoni Cc: stable@vger.kernel.org Signed-off-by: Jani Nikula

nouveau: move the hotplug ignore to correct place.

2014-12-02T06:27:25Z

Introduced in b440bde74f, however it was added to the wrong function in nouveau. https://bugzilla.kernel.org/show_bug.cgi?id=86011 Cc: Bjorn Helgaas CC: stable@vger.kernel.org # v3.15+ Signed-off-by: Dave Airlie

Merge branch 'linux-3.18' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes

2014-12-02T05:40:16Z

Just a couple of fixes for the fallout from the fence rework. * 'linux-3.18' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nouveau/gf116: remove copy1 engine drm/nouveau: prevent stale fence->channel pointers, and protect with rcu drm/nouveau/fifo/g84-: ack non-stall interrupt before handling it

drm/nouveau/gf116: remove copy1 engine

2014-12-02T05:36:47Z

Indications are that no GF116's actually have a copy engine there, but actually have the decompression engine. This engine can be made to do copies, but that should be done separately. Unclear why this didn't turn up on all GF116's, but perhaps the non-mobile ones came with enough VRAM to not trigger ttm migrations in test scenarios. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=85465 Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=59168 Cc: stable@vger.kernel.org Signed-off-by: Ilia Mirkin Signed-off-by: Ben Skeggs

drm/nouveau: prevent stale fence->channel pointers, and protect with rcu

2014-12-02T05:33:22Z

Tested-by: Alexandre Courbot Signed-off-by: Ben Skeggs