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2021-07-20drm/ast: Disable fast reset after DRAM initialKuoHsiang Chou1-26/+65
[Bug][AST2500] V1: When AST2500 acts as stand-alone VGA so that DRAM and DVO initialization have to be achieved by VGA driver with P2A (PCI to AHB) enabling. However, HW suggests disable Fast reset mode after DRAM initializaton, because fast reset mode is mainly designed for ARM ICE debugger. Once Fast reset is checked as enabling, WDT (Watch Dog Timer) should be first enabled to avoid system deadlock before disable fast reset mode. V2: Use to_pci_dev() to get revision of PCI configuration. V3: If SCU00 is not unlocked, just enter its password again. It is unnecessary to clear AHB lock condition and restore WDT default setting again, before Fast-reset clearing. V4: repatch after "error : could not build fake ancestor" resolved. V5: Since CVE_2019_6260 item3, Most of AST2500 have disabled P2A(PCIe to AMBA). However, for backward compatibility, some patches about P2A, such as items of v5.2 and v5.3, are considered to be upstreamed with comments. 1. Add define macro to improve source readability. ast_drv.h, ast_main.c, ast_post.c 2. Add comment about "Fast restet" is enabled for ARM-ICE debugger ast_post.c 3. Add comment about Reset USB port to patch USB unknown device issue ast_post.c Signed-off-by: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210709080900.4056-1-kuohsiang_chou@aspeedtech.com
2021-01-06drm/ast: Remove references to struct drm_device.pdevThomas Zimmermann1-3/+5
Using struct drm_device.pdev is deprecated. Convert ast to struct drm_device.dev. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201201103542.2182-4-tzimmermann@suse.de
2020-08-03drm/ast: Embed struct drm_device in struct ast_privateThomas Zimmermann1-1/+1
Turns struct ast_private into a subclass of struct drm_device by embedding the latter. This allows for using DRM's managed device allocation. The use of struct drm_device.dev_private is deprecated. The patch converts the last remaining users to to_ast_private(). Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200730135206.30239-7-tzimmermann@suse.de
2020-08-03drm/ast: Don't use ast->dev if dev is availableThomas Zimmermann1-2/+2
Several places in ast use ast->dev, when a dev pointer is already available within the function. Remove the extra indirection. No functional changes made. This is just a small cleanup before embedding the DRM device instance in struct ast_private. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200730135206.30239-6-tzimmermann@suse.de
2020-06-22drm/ast: Use per-device logging macrosThomas Zimmermann1-1/+1
Converts the ast driver to drm_info(), drm_err() and drm_WARN_*(). No functional changes are made. v2: * also convert WARN_*() macros Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200617080340.29584-5-tzimmermann@suse.de
2020-06-22drm/ast: Upcast from DRM device to ast structure via to_ast_private()Thomas Zimmermann1-8/+8
All upcasting from struct drm_device to struct ast_private is now performed via to_ast_private(). Using struct drm_device.dev_private is deprecated. The ast variable in ast_crtc_helper_atomic_check() is unused, so removed it. v2: * fix typo in commit message Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200617080340.29584-4-tzimmermann@suse.de
2020-06-22drm/ast: Remove unused code paths for AST 1180Thomas Zimmermann1-7/+3
The ast driver contains code paths for AST 1180 chips. The chip is not supported and the rsp code has never been tested. Simplify the driver by removing the AST 1180 code. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200617080340.29584-2-tzimmermann@suse.de
2019-09-19Merge tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-2/+5
Pull drm updates from Dave Airlie: "This is the main pull request for 5.4-rc1 merge window. I don't think there is anything outstanding so next week should just be fixes, but we'll see if I missed anything. I landed some fixes earlier in the week but got delayed writing summary and sending it out, due to a mix of sick kid and jetlag! There are some fixes pending, but I'd rather get the main merge out of the way instead of delaying it longer. It's also pretty large in commit count and new amd header file size. The largest thing is four new amdgpu products (navi12/14, arcturus and renoir APU support). Otherwise it's pretty much lots of work across the board, i915 has started landing tigerlake support, lots of icelake fixes and lots of locking reworking for future gpu support, lots of header file rework (drmP.h is nearly gone), some old legacy hacks (DRM_WAIT_ON) have been put into the places they are needed. uapi: - content protection type property for HDCP core: - rework include dependencies - lots of drmP.h removals - link rate calculation robustness fix - make fb helper map only when required - add connector->DDC adapter link - DRM_WAIT_ON removed - drop DRM_AUTH usage from drivers dma-buf: - reservation object fence helper dma-fence: - shrink dma_fence struct - merge signal functions - store timestamps in dma_fence - selftests ttm: - embed drm_get_object struct into ttm_buffer_object - release_notify callback bridges: - sii902x - audio graph card support - tc358767 - aux data handling rework - ti-snd64dsi86 - debugfs support, DSI mode flags support panels: - Support for GiantPlus GPM940B0, Sharp LQ070Y3DG3B, Ortustech COM37H3M, Novatek NT39016, Sharp LS020B1DD01D, Raydium RM67191, Boe Himax8279d, Sharp LD-D5116Z01B - TI nspire, NEC NL8048HL11, LG Philips LB035Q02, Sharp LS037V7DW01, Sony ACX565AKM, Toppoly TD028TTEC1 Toppoly TD043MTEA1 i915: - Initial tigerlake platform support - Locking simplification work, general all over refactoring. - Selftests - HDCP debug info improvements - DSI properties - Icelake display PLL fixes, colorspace fixes, bandwidth fixes, DSI suspend/resume - GuC fixes - Perf fixes - ElkhartLake enablement - DP MST fixes - GVT - command parser enhancements amdgpu: - add wipe memory on release flag for buffer creation - Navi12/14 support (may be marked experimental) - Arcturus support - Renoir APU support - mclk DPM for Navi - DC display fixes - Raven scatter/gather support - RAS support for GFX - Navi12 + Arcturus power features - GPU reset for Picasso - smu11 i2c controller support amdkfd: - navi12/14 support - Arcturus support radeon: - kexec fix nouveau: - improved display color management - detect lack of GPU power cables vmwgfx: - evicition priority support - remove unused security feature msm: - msm8998 display support - better async commit support for cursor updates etnaviv: - per-process address space support - performance counter fixes - softpin support mcde: - DCS transfers fix exynos: - drmP.h cleanup lima: - reduce logging kirin: - misc clenaups komeda: - dual-link support - DT memory regions hisilicon: - misc fixes imx: - IPUv3 image converter fixes - 32-bit RGB V4L2 pixel format support ingenic: - more support for panel related cases mgag200: - cursor support fix panfrost: - export GPU features register to userspace - gpu heap allocations - per-fd address space support pl111: - CLD pads wiring support removed from DT rockchip: - rework to use DRM PSR helpers - fix bug in VOP_WIN_GET macro - DSI DT binding rework sun4i: - improve support for color encoding and range - DDC enabled GPIO tinydrm: - rework SPI support - improve MIPI-DBI support - moved to drm/tiny vkms: - rework CRC tracking dw-hdmi: - get_eld and i2s improvements gm12u320: - misc fixes meson: - global code cleanup - vpu feature detect omap: - alpha/pixel blend mode properties rcar-du: - misc fixes" * tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm: (2112 commits) drm/nouveau/bar/gm20b: Avoid BAR1 teardown during init drm/nouveau: Fix ordering between TTM and GEM release drm/nouveau/prime: Extend DMA reservation object lock drm/nouveau: Fix fallout from reservation object rework drm/nouveau/kms/nv50-: Don't create MSTMs for eDP connectors drm/i915: Use NOEVICT for first pass on attemping to pin a GGTT mmap drm/i915: to make vgpu ppgtt notificaiton as atomic operation drm/i915: Flush the existing fence before GGTT read/write drm/i915: Hold irq-off for the entire fake lock period drm/i915/gvt: update RING_START reg of vGPU when the context is submitted to i915 drm/i915/gvt: update vgpu workload head pointer correctly drm/mcde: Fix DSI transfers drm/msm: Use the correct dma_sync calls harder drm/msm: remove unlikely() from WARN_ON() conditions drm/msm/dsi: Fix return value check for clk_get_parent drm/msm: add atomic traces drm/msm/dpu: async commit support drm/msm: async commit support drm/msm: split power control from prepare/complete_commit drm/msm: add kms->flush_commit() ...
2019-08-15drm/ast: Fixed reboot test may cause system hangedY.C. Chen1-1/+1
There is another thread still access standard VGA I/O while loading drm driver. Disable standard VGA I/O decode to avoid this issue. Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com> Reviewed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/1523410059-18415-1-git-send-email-yc_chen@aspeedtech.com
2019-07-15drm/ast: drop use of drmP.hSam Ravnborg1-2/+5
Drop use of the deprecated drmP.h header file. While touching the files divide include files in blocks and sort the include files in the individual blocks. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Emil Velikov <emil.velikov@collabora.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: "Christian König" <christian.koenig@amd.com> Cc: Sam Bobroff <sbobroff@linux.ibm.com> Cc: YueHaibing <yuehaibing@huawei.com> Cc: Huang Rui <ray.huang@amd.com> Cc: "Y.C. Chen" <yc_chen@aspeedtech.com> Cc: Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190630061922.7254-33-sam@ravnborg.org
2017-02-28drm/ast: Call open_key before enable_mmio in POST codeY.C. Chen1-1/+1
open_key enables access the registers used by enable_mmio Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Joel Stanley <joel@jms.id.au> Tested-by: Y.C. Chen <yc_chen@aspeedtech.com> Cc: <stable@vger.kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-28drm/ast: Fix test for VGA enabledY.C. Chen1-6/+2
The test to see if VGA was already enabled is doing an unnecessary second test from a register that may or may not have been initialized to a valid value. Remove it. Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: <stable@vger.kernel.org> Acked-by: Joel Stanley <joel@jms.id.au> Tested-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-28drm/ast: POST code for the new AST2500Y.C. Chen1-3/+414
This is used when the BMC isn't running any code and thus has to be initialized by the host. The code originates from Aspeed (Y.C. Chen) and has been cleaned up for coding style purposes by BenH. Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-28drm/ast: Rename ast_init_dram_2300 to ast_post_chip_2300Benjamin Herrenschmidt1-3/+3
The function does more than initializing the DRAM and in turns calls other functions to do the actual init. This will keeping things more consistent with the upcoming AST2500 POST code. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Joel Stanley <joel@jms.id.au> Tested-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-28drm/ast: Factor mmc_test code in POST codeBenjamin Herrenschmidt1-51/+31
There's a some duplication for what's essentially copies of two loops, so factor it. The upcoming AST2500 POST code adds more of them. Also cleanup return types for the test functions, most of them return a boolean, some return a u32. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Joel Stanley <joel@jms.id.au> Tested-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-28drm/ast: Fixed vram size incorrect issue on POWERY.C. Chen1-1/+1
The default value of VGA scratch may incorrect. Should initial h/w before get vram info. Acked-by: Joel Stanley <joel@jms.id.au> Tested-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-28drm/ast: Handle configuration without P2A bridgeRussell Currey1-5/+2
The ast driver configures a window to enable access into BMC memory space in order to read some configuration registers. If this window is disabled, which it can be from the BMC side, the ast driver can't function. Closing this window is a necessity for security if a machine's host side and BMC side are controlled by different parties; i.e. a cloud provider offering machines "bare metal". A recent patch went in to try to check if that window is open but it does so by trying to access the registers in question and testing if the result is 0xffffffff. This method will trigger a PCIe error when the window is closed which on some systems will be fatal (it will trigger an EEH for example on POWER which will take out the device). This patch improves this in two ways: - First, if the firmware has put properties in the device-tree containing the relevant configuration information, we use these. - Otherwise, a bit in one of the SCU scratch registers (which are readable via the VGA register space and writeable by the BMC) will indicate if the BMC has closed the window. This bit has been defined by Y.C Chen from Aspeed. If the window is closed and the configuration isn't available from the device-tree, some sane defaults are used. Those defaults are hopefully sufficient for standard video modes used on a server. Signed-off-by: Russell Currey <ruscur@russell.cc> Acked-by: Joel Stanley <joel@jms.id.au> Cc: <stable@vger.kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-28drm/ast: Fix AST2400 POST failure without BMC FW or VBIOSY.C. Chen1-3/+35
The current POST code for the AST2300/2400 family doesn't work properly if the chip hasn't been initialized previously by either the BMC own FW or the VBIOS. This fixes it. Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Y.C. Chen <yc_chen@aspeedtech.com> Acked-by: Joel Stanley <joel@jms.id.au> Cc: <stable@vger.kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-01-27drm/ast: Fixed system hanged if disable P2AY.C. Chen1-5/+13
The original ast driver will access some BMC configuration through P2A bridge that can be disabled since AST2300 and after. It will cause system hanged if P2A bridge is disabled. Here is the update to fix it. Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-15drm/ast: POST chip at probe time if VGA not enabledBenjamin Herrenschmidt1-9/+14
We need to do it on machines without a BIOS such as POWER8. Also for detection to work without triggering PCIe errors, we need to enable VGA early on, inside ast_detect_chip(). While touching those files, replace a few hard coded register numbers with the corresponding symbolic constant. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-06-10drm: Remove spurious ';'Damien Lespiau1-2/+2
One small step after another, the never-ending crusade towards better code continues. Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-05-19Merge branch 'ast-updates' of ssh://people.freedesktop.org/~/linux into drm-nextDave Airlie1-513/+385
Pull in latest updates to AST driver. * 'ast-updates' of ssh://people.freedesktop.org/~/linux: drm/ast: initial DP501 support (v0.2) drm/ast: rename the mindwm/moutdwm and deinline them drm/ast: resync the dram post code with upstream drm/ast: add AST 2400 support. drm/ast: add widescreen + rb modes from X.org driver (v2)
2014-05-19drm/ast: initial DP501 support (v0.2)Dave Airlie1-2/+4
This is the initial attempt at porting the DP501 code from the userspace driver, the firmware file is in http://people.freedesktop.org/~airlied/ast_dp501_fw.bin this should really be exposed as another encoder/connector that is cloneable v0.2: init 3rd tx properly, add scratch reduction of VRAM size backup firmware properly. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-05-19drm/ast: rename the mindwm/moutdwm and deinline themDave Airlie1-225/+225
we'll need these elsewhere for dp501. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-05-19drm/ast: resync the dram post code with upstreamDave Airlie1-303/+173
This resyncs the dram post code with the upstream X.org driver where ast have improved the code for setting up the dram chips. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-05-19drm/ast: add AST 2400 support.Dave Airlie1-3/+3
This is ported from the userspace driver. Untested on any ast2400 hw so far. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-04-18drm/ast: fix value check in cbr_scan2Dave Airlie1-1/+1
this is a typo vs the ums driver, fix to check correct value. Found initially by Coverity. Reported-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-10-02UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/David Howells1-1/+1
Convert #include "..." to #include <path/...> in drivers/gpu/. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-05-17drm: Initial KMS driver for AST (ASpeed Technologies) 2000 series (v2)Dave Airlie1-0/+1780
This is the initial driver for the Aspeed Technologies chips found in servers. This driver supports the AST 2000, 2100, 2200, 2150 and 2300. It doesn't support the AST11xx due to lack of hw to test it on, and them requiring different codepaths. This driver is intended to be used with xf86-video-modesetting in userspace. This driver has a slightly different design than other KMS drivers, but future server chips will probably share similiar setup. As these GPUs commonly have low video RAM, it doesn't make sense to put the kms console in VRAM always. This driver places the kms console into system RAM, and does dirty updates to a copy in video RAM. When userspace sets a new scanout buffer, it forcefully evicts the video RAM console, and X can create a framebuffer that can use all of of video RAM. This driver uses TTM but in a very simple fashion to control the eviction to system RAM of the console, and multiple servers. v2: add s/r support, fix Kconfig. Signed-off-by: Dave Airlie <airlied@redhat.com>
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