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path: root/drivers/gpu/drm/radeon
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2014-02-13drm/radeon/DCE4+: clear bios scratch dpms bit (v2)Alex Deucher1-0/+4
commit 6802d4bad83f50081b2788698570218aaff8d10e upstream. The BlankCrtc table in some DCE8 boards has some logic shortcuts for the vbios when this bit is set. Clear it for driver use. v2: fix typo Bug: https://bugs.freedesktop.org/show_bug.cgi?id=73420 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13drm/radeon: set the full cache bit for fences on r7xx+Alex Deucher2-6/+8
commit d45b964a22cad962d3ede1eba8d24f5cee7b2a92 upstream. Needed to properly flush the read caches for fences. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13drm/radeon: skip colorbuffer checking if COLOR_INFO.FORMAT is set to INVALIDMarek Olšák2-2/+8
commit 56492e0fac2dbaf7735ffd66b206a90624917789 upstream. This fixes a bug which was causing rejections of valid GPU commands from userspace. Signed-off-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13radeon/pm: Guard access to rdev->pm.power_state arrayMichel Dänzer1-2/+4
commit 370169516e736edad3b3c5aa49858058f8b55195 upstream. It's never allocated on systems without an ATOMBIOS or COMBIOS ROM. Should fix an oops I encountered while resetting the GPU after a lockup on my PowerBook with an RV350. Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-13drm/radeon: warn users when hw_i2c is enabled (v2)Alex Deucher1-0/+3
commit d195178297de9a91246519dbfa98952b70f9a9b6 upstream. The hw i2c engines are disabled by default as the current implementation is still experimental. Print a warning when users enable it so that it's obvious when the option is enabled. v2: check for non-0 rather than 1 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-08drm/radeon: fix asic gfx values for scrapper asicsAlex Deucher1-4/+16
commit e2f6c88fb903e123edfd1106b0b8310d5117f774 upstream. Fixes gfx corruption on certain TN/RL parts. bug: https://bugs.freedesktop.org/show_bug.cgi?id=60389 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-20drm/radeon: fixup bad vram size on SIAlex Deucher1-2/+9
commit 0ca223b029a261e82fb2f50c52eb85d510f4260e upstream. Some boards seem to have garbage in the upper 16 bits of the vram size register. Check for this and clamp the size properly. Fixes boards reporting bogus amounts of vram. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-04radeon: workaround pinning failure on low ram gpuJerome Glisse1-0/+28
commit 97b6ff6be9da7675aab339334fda996d6c5077d9 upstream. GPU with low amount of ram can fails at pinning new framebuffer before unpinning old one. On such failure, retry with unpinning old one before pinning new one allowing to work around the issue. This is somewhat ugly but only affect those old GPU we care about. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-04drm/radeon/si: fix define for MC_SEQ_TRAIN_WAKEUP_CNTLAlex Deucher1-1/+1
commit d5693761b2b4ff530c8af8af9ec55b6eae76e617 upstream. Typo in the register offset. Noticed-by: Sylvain BERTRAND <sylware@legeek.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13drm/radeon/atom: workaround vbios bug in transmitter table on rs780Alex Deucher1-1/+1
commit c23632d4e57c0dd20bf50eca08fa0eb8ad3ff680 upstream. Some rs780 asics seem to be affected as well. See: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=91f3a6aaf280294b07c05dfe606e6c27b7ba3c72 Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60791 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-22drm/radeon: fix hw contexts for SUMO2 asicswojciech kapuscinski1-1/+1
commit 50b8f5aec04ebec7dbdf2adb17220b9148c99e63 upstream. They have 4 rather than 8. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=63599 Signed-off-by: wojciech kapuscinski <wojtask9@wp.pl> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-05drm/radeon: disable tests/benchmarks if accel is disabledAlex Deucher1-3/+12
commit 4a1132a023eb48cf10522d84c5908d43b612c041 upstream. The tests are only usable if the acceleration engines have been successfully initialized. Based on an initial patch from: Alex Ivanov <gnidorah@p0n4ik.tk> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-01drm/radeon/atom: workaround vbios bug in transmitter table on rs880 (v2)Alex Deucher1-2/+6
commit 91f3a6aaf280294b07c05dfe606e6c27b7ba3c72 upstream. The OUTPUT_ENABLE action jumps past the point in the coder where the data_offset is set on certain rs780 cards. This worked previously because the OUTPUT_ENABLE action is always called immediately after the ENABLE action so the data_offset remained set. In 6f8bbaf568c7f2c497558bfd04654c0b9841ad57 (drm/radeon/atom: initialize more atom interpretor elements to 0), we explictly reset data_offset to 0 between atom calls which then caused this to fail. The fix is to just skip calling the OUTPUT_ENABLE action on the problematic chipsets. The ENABLE action does the same thing and more. Ultimately, we could probably drop the OUTPUT_ENABLE action all together on DCE3 asics. fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60791 v2: only rs880 seems to be affected Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-01drm/radeon: fix handling of variable sized arrays for router objectsAlex Deucher1-3/+6
commit fb93df1c2d8b3b1fb16d6ee9e32554e0c038815d upstream. The table has the following format: typedef struct _ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT //usSrcDstTableOffset pointing to this structure { UCHAR ucNumberOfSrc; USHORT usSrcObjectID[1]; UCHAR ucNumberOfDst; USHORT usDstObjectID[1]; }ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT; usSrcObjectID[] and usDstObjectID[] are variably sized, so we can't access them directly. Use pointers and update the offset appropriately when accessing the Dst members. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-01drm/radeon: fix resume on some rs4xx boards (v2)Alex Deucher1-3/+6
commit acf88deb8ddbb73acd1c3fa32fde51af9153227f upstream. Setting MC_MISC_CNTL.GART_INDEX_REG_EN causes hangs on some boards on resume. The systems seem to work fine without touching this bit so leave it as is. v2: read-modify-write the GART_INDEX_REG_EN bit. I suspect the problem is that we are losing the other settings in the register. fixes: https://bugs.freedesktop.org/show_bug.cgi?id=52952 Reported-by: Ondrej Zary <linux@rainbow-software.org> Tested-by: Daniel Tobias <dan.g.tob@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-01drm/radeon: update line buffer allocation for dce6Alex Deucher2-4/+23
commit 290d24576ccf1aa0373d2185cedfe262d0d4952a upstream. We need to allocate line buffer to each display when setting up the watermarks. Failure to do so can lead to a blank screen. This fixes blank screen problems on dce6 asics. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=64850 Based on an initial fix from: Jay Cornwall <jay.cornwall@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-01drm/radeon: update line buffer allocation for dce4.1/5Alex Deucher2-4/+25
commit 0b31e02363b0db4e7931561bc6c141436e729d9f upstream. We need to allocate line buffer to each display when setting up the watermarks. Failure to do so can lead to a blank screen. This fixes blank screen problems on dce4.1/5 asics. Based on an initial fix from: Jay Cornwall <jay.cornwall@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-01drm/radeon: fix endian bugs in hw i2c atom routinesAlex Deucher2-4/+6
commit 4543eda52113d1e2cc0e9bf416f79597e6ef1ec7 upstream. Need to swap the data fetched over i2c properly. This is the same fix as the endian fix for aux channel transactions. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-01drm/radeon: fix LCD record parsingAlex Deucher1-1/+3
commit 95663948ba22a4be8b99acd67fbf83e86ddffba4 upstream. If the LCD table contains an EDID record, properly account for the edid size when walking through the records. This should fix error messages about unknown LCD records. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-04drm/radeon/atom: initialize more atom interpretor elements to 0Alex Deucher1-0/+5
commit 42a21826dc54583cdb79cc8477732e911ac9c376 upstream. The ProcessAuxChannel table on some rv635 boards assumes the divmul members are initialized to 0 otherwise we get an invalid fb offset since it has a bad mask set when setting the fb base. While here initialize all the atom interpretor elements to 0. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60639 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-04drm/radeon: improve dac adjust heuristics for legacy pdacAlex Deucher1-2/+4
commit 03ed8cf9b28d886c64c7e705c7bb1a365fd8fb95 upstream. Hopefully avoid more quirks in the future due to bogus vbios dac data. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-04drm/radeon: fix combios tables on older cardsMark Kettenis1-104/+41
commit cef1d00cd56f600121ad121875655ad410a001b8 upstream. Noticed that my old Radeon 7500 hung after printing drm: GPU not posted. posting now... when it wasn't selected as the primary card the BIOS. Some digging revealed that it was hanging in combios_parse_mmio_table() while parsing the ASIC INIT 3 table. Looking at the BIOS ROM for the card, it becomes obvious that there is no ASIC INIT 3 table in the BIOS. The code is just processing random garbage. No surprise it hangs! Why do I say that there is no ASIC INIT 3 table is the BIOS? This table is found through the MISC INFO table. The MISC INFO table can be found at offset 0x5e in the COMBIOS header. But the header is smaller than that. The COMBIOS header starts at offset 0x126. The standard PCI Data Structure (the bit that starts with 'PCIR') lives at offset 0x180. That means that the COMBIOS header can not be larger than 0x5a bytes and therefore cannot contain a MISC INFO table. I looked at a dozen or so BIOS images, some my own, some downloaded from: <http://www.techpowerup.com/vgabios/index.php?manufacturer=ATI&page=1> It is fairly obvious that the size of the COMBIOS header can be found at offset 0x6 of the header. Not sure if it is a 16-bit number or just an 8-bit number, but that doesn't really matter since the tables seems to be always smaller than 256 bytes. So I think combios_get_table_offset() should check if the requested table is present. This can be done by checking the offset against the size of the header. See the diff below. The diff is against the WIP OpenBSD codebase that roughly corresponds to Linux 3.8.13 at this point. But I don't think this bit of the code changed much since then. For what it is worth: Signed-off-by: Mark Kettenis <kettenis@openbsd.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-04drm/radeon: fix endian issues with DP handling (v3)Alex Deucher1-4/+39
commit 34be8c9af7b8728465963740fc11136ae90dfc36 upstream. The atom interpreter expects data in LE format, so swap the message buffer as apprioriate. v2: properly handle non-dw aligned byte counts. v3: properly handle remainder Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Dong He <hedonghust@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-13drm/radeon: don't allow audio on DCE6Alex Deucher1-3/+8
commit 1cbcca302a318499f20a512847c5d6a510c08c35 upstream. It's not supported yet. Fixes display issues when users force it on. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-13radeon: Fix system hang issue when using KMS with older cardsAdis Hamzić13-45/+78
commit e49f3959a96dc279860af7e86e6dbcfda50580a5 upstream. The current radeon driver initialization routines, when using KMS, are written so that the IRQ installation routine is called before initializing the WB buffer and the CP rings. With some ASICs, though, the IRQ routine tries to access the GFX_INDEX ring causing a call to RREG32 with the value of -1 in radeon_fence_read. This, in turn causes the system to completely hang with some cards, requiring a hard reset. A call stack that can cause such a hang looks like this (using rv515 ASIC for the example here): * rv515_init (rv515.c) * radeon_irq_kms_init (radeon_irq_kms.c) * drm_irq_install (drm_irq.c) * radeon_driver_irq_preinstall_kms (radeon_irq_kms.c) * rs600_irq_process (rs600.c) * radeon_fence_process - due to SW interrupt (radeon_fence.c) * radeon_fence_read (radeon_fence.c) * hang due to RREG32(-1) The patch moves the IRQ installation to the card startup routine, after the ring has been initialized, but before the IRQ has been set. This fixes the issue, but requires a check to see if the IRQ is already installed, as is the case in the system resume codepath. I have tested the patch on three machines using the rv515, the rv770 and the evergreen ASIC. They worked without issues. This seems to be a known issue and has been reported on several bug tracking sites by various distributions (see links below). Most of reports recommend booting the system with KMS disabled and then enabling KMS by reloading the radeon module. For some reason, this was indeed a usable workaround, however, UMS is now deprecated and disabled by default. Bug reports: https://bugzilla.redhat.com/show_bug.cgi?id=845745 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/561789 https://bbs.archlinux.org/viewtopic.php?id=156964 Signed-off-by: Adis Hamzić <adis@hamzadis.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-06-07drm/radeon: fix card_posted check for newer asicsAlex Deucher1-10/+9
commit 09fb8bd1a63b0f9f15e655c4fe8d047e5d2bf67a upstream. Newer asics have variable numbers of crtcs. Use that rather than the asic family to determine which crtcs to check. This avoids checking non-existent crtcs or missing crtcs on certain asics. Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-24drm/radeon: Fix VRAM size calculation for VRAM >= 4GBNiels Ole Salscheider3-5/+5
commit fc986034540102cd090237bf3f70262e1ae80d9c upstream. Add ULL prefix to avoid overflow. Signed-off-by: Niels Ole Salscheider <niels_ole@salscheider-online.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-19drm/radeon: check incoming cliprects pointerKees Cook1-1/+1
commit fefaedcfb82d2e57c2320acf60604ab03b750cc0 upstream. The "boxes" parameter points into userspace memory. It should be verified like any other operation against user memory. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon: fix handling of v6 power tablesAlex Deucher1-6/+5
commit 441e76ca83ac604eaf0f046def96d8e3a27eea28 upstream. The code was mis-handling variable sized arrays. Reported-by: Sylvain BERTRAND <sylware@legeek.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon: add new richland pci idsAlex Deucher1-2/+4
commit 62d1f92e06aef9665d71ca7e986b3047ecf0b3c7 upstream. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon: fix possible segfault when parsing pm tablesAlex Deucher1-1/+9
commit f8e6bfc2ce162855fa4f9822a45659f4b542c960 upstream. If we have a empty power table, bail early and allocate the default power state. Should fix: https://bugs.freedesktop.org/show_bug.cgi?id=63865 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon: fix endian bugs in atom_allocate_fb_scratch()Alex Deucher1-3/+3
commit beb71fc61c2cad64e347f164991b8ef476529e64 upstream. Reviwed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon/evergreen+: don't enable HPD interrupts on eDP/LVDSAlex Deucher1-0/+10
commit 2e97be73e5f74a317232740ae82eb8f95326a660 upstream. Avoids potential interrupt storms when the display is disabled. May fix: https://bugzilla.kernel.org/show_bug.cgi?id=56041 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon: disable the crtcs in mc_stop (evergreen+) (v2)Alex Deucher1-0/+12
commit abf1457bbbe4c62066bd03c6d31837dea28644dc upstream. Just disabling the mem requests should be enough, but that doesn't seem to work correctly on efi systems. May fix: https://bugs.freedesktop.org/show_bug.cgi?id=57567 https://bugs.freedesktop.org/show_bug.cgi?id=43655 https://bugzilla.kernel.org/show_bug.cgi?id=56441 v2: blank displays first, then disable. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon: properly lock disp in mc_stop/resume for evergreen+Alex Deucher2-4/+45
commit 968c01664ccbe0e46c19a1af662c4c266a904203 upstream. Need to wait for the new addresses to take affect before re-enabling the MC. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon/dce6: add missing display reg for tiling setupAlex Deucher4-0/+9
commit 7c1c7c18fc752b2a1d07597286467ef186312463 upstream. A new tiling config register for the display blocks was added on DCE6. May fix: https://bugs.freedesktop.org/show_bug.cgi?id=62889 https://bugs.freedesktop.org/show_bug.cgi?id=57919 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-12drm/radeon: don't use get_engine_clock() on APUsAlex Deucher1-1/+5
commit bf05d9985111f85ed6922c134567b96eb789283b upstream. It doesn't work reliably. Just report back the currently selected engine clock. Partially fixes: https://bugs.freedesktop.org/show_bug.cgi?id=62493 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-28drm/radeon/benchmark: make sure bo blit copy exists before using itAlex Deucher1-7/+9
commit fa8d387dc3f62062a6b4afbbb2a3438094fd8584 upstream. Fixes a segfault on asics without a blit callback. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=62239 Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-28drm/radeon: add support for Richland APUsAlex Deucher1-1/+10
commit e4d170633fde379f39a90f8a5e7eb619b5d1144d upstream. Richland APUs are a new version of the Trinity APUs with performance and power management improvements. Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-14drm/radeon: add primary dac adj quirk for R200 boardAlex Deucher1-0/+9
commit e8fc41377f5037ff7a661ea06adc05f1daec1548 upstream. vbios values are wrong leading to colors that are too bright. Use the default values instead. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-28drm/radeon/dce6: fix display powergatingAlex Deucher1-4/+2
commit 0e3d50bfcbd338254795a700dcff429a96cba1a6 upstream. Only enable it when we disable the display rather than at DPMS time since enabling it requires a full modeset to restore the display state. Fixes blank screens in certain cases. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-14efi: Make 'efi_enabled' a function to query EFI facilitiesMatt Fleming1-1/+2
commit 83e68189745ad931c2afd45d8ee3303929233e7f upstream. Originally 'efi_enabled' indicated whether a kernel was booted from EFI firmware. Over time its semantics have changed, and it now indicates whether or not we are booted on an EFI machine with bit-native firmware, e.g. 64-bit kernel with 64-bit firmware. The immediate motivation for this patch is the bug report at, https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557 which details how running a platform driver on an EFI machine that is designed to run under BIOS can cause the machine to become bricked. Also, the following report, https://bugzilla.kernel.org/show_bug.cgi?id=47121 details how running said driver can also cause Machine Check Exceptions. Drivers need a new means of detecting whether they're running on an EFI machine, as sadly the expression, if (!efi_enabled) hasn't been a sufficient condition for quite some time. Users actually want to query 'efi_enabled' for different reasons - what they really want access to is the list of available EFI facilities. For instance, the x86 reboot code needs to know whether it can invoke the ResetSystem() function provided by the EFI runtime services, while the ACPI OSL code wants to know whether the EFI config tables were mapped successfully. There are also checks in some of the platform driver code to simply see if they're running on an EFI machine (which would make it a bad idea to do BIOS-y things). This patch is a prereq for the samsung-laptop fix patch. Signed-off-by: Matt Fleming <matt.fleming@intel.com> Cc: David Airlie <airlied@linux.ie> Cc: Corentin Chary <corentincj@iksaif.net> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Olof Johansson <olof@lixom.net> Cc: Peter Jones <pjones@redhat.com> Cc: Colin Ian King <colin.king@canonical.com> Cc: Steve Langasek <steve.langasek@canonical.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Konrad Rzeszutek Wilk <konrad@kernel.org> Cc: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-11drm/radeon: Calling object_unrefer() when creating fb failureliu chuansheng1-1/+3
commit f2d68cf4daa4de97d400d94836b907e35228e54f upstream. When kzalloc() failed in radeon_user_framebuffer_create(), need to call object_unreference() to match the object_reference(). Signed-off-by: liu chuansheng <chuansheng.liu@intel.com> Signed-off-by: xueminsu <xuemin.su@intel.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-11drm/radeon: prevent crash in the ring space allocationAlex Deucher1-0/+3
commit fd5d93a0015ce1a7db881382022b2fcdfdc61760 upstream. If the requested number of DWs on the ring is larger than the size of the ring itself, return an error. In testing with large VM updates, we've seen crashes when we try and allocate more space on the ring than the total size of the ring without checking. This prevents the crash but for large VM updates or bo moves of very large buffers, we will need to break the transaction down into multiple batches. I have patches to use IBs for the next kernel. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-11drm/radeon: fix MC blackout on evergreen+Christopher Staite1-0/+8
commit bb588820ef421c6098dca1fec29c3b347f1c8c19 upstream. Force the crtc mem requests on/off immediately rather than waiting for the double buffered updates to kick in. Seems we miss the update in certain conditions. Also handle the DCE6 case. Signed-off-by: Christopher Staite <chris@yourdreamnet.co.uk> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-11drm/radeon: add quirk for RV100 boardAlex Deucher1-0/+8
commit 9200ee4941a6e5d1ec5df88982243686882dff3f upstream. vbios says external TMDS while the board is actually internal TMDS. fixes: https://bugs.freedesktop.org/show_bug.cgi?id=60037 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-11drm/radeon: add WAIT_UNTIL to the non-VM safe regs list for cayman/TNAlex Deucher1-0/+1
commit 674a16f2b4724880d07389abbb95abf320b924aa upstream. Newer versions of mesa emit this. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-11drm/radeon/evergreen+: wait for the MC to settle after MC blackoutAlex Deucher1-0/+2
commit ed39fadd6df01095378e499fac3674883f16b853 upstream. Some chips seem to need a little delay after blacking out the MC before the requests actually stop. May fix: https://bugs.freedesktop.org/show_bug.cgi?id=56139 https://bugs.freedesktop.org/show_bug.cgi?id=57567 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-04radeon_display: Use pointer return error codesxueminsu1-1/+1
commit b2f4b03f8a378cd626d2ea67d19e7470c050a098 upstream. drm_mode_addfb() expects fb_create return error code instead of NULL. Signed-off-by: xueminsu <xuemin.su@intel.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-04drm/radeon: fix cursor corruption on DCE6 and newerJerome Glisse1-1/+2
commit e521a29014794d139cca46396d1af8faf1295a26 upstream. Aruba and newer gpu does not need the avivo cursor work around, quite the opposite this work around lead to corruption. agd5f: check DCE6 rather than ARUBA since the issue is DCE version specific rather than family specific. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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