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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu.h
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* | drm/amdgpu:changes of virtualization cases probe (v3)Monk Liu2016-09-191-8/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | 1,Changes on virtualization detections 2,Don't load smu & mc firmware if using sr-iov bios 3,skip vPost for sriov & force vPost if dev pass-through v2: agd: squash in Rays's fix for the missed SI case v3: agd: squash in additional fixes for CIK, SI, cleanup Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: clean function declarations in amdgpu_ttm.c upBaoyou Xie2016-09-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We get 2 warnings when building kernel with W=1: drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:985:5: warning: no previous prototype for 'amdgpu_ttm_init' [-Wmissing-prototypes] drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:1092:6: warning: no previous prototype for 'amdgpu_ttm_fini' [-Wmissing-prototypes] In fact, both functions are declared in drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c, but should be declared in a header file, thus can be recognized in other file. So this patch moves the declarations into drivers/gpu/drm/amd/amdgpu/amdgpu.h. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu/ring: add an interface to get dma frame and ib sizeAlex Deucher2016-09-161-0/+4
| | | | | | | | | | | | | | Used to properly calculate space on the ring for ib submissions. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amd/powerplay: add module parameter to mask pp featuresRex Zhu2016-09-141-0/+1
| | | | | | | | | | | | | | Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: bind GTT on demandChristian König2016-09-141-0/+1
| | | | | | | | | | | | | | | | | | | | We don't really need the GTT table any more most of the time. So bind it only on demand. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu:implement CONTEXT_CONTROL (v5)Monk Liu2016-09-141-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | v1: for gfx8, use CONTEXT_CONTROL package to dynamically skip preamble CEIB and other load_xxx command in sequence. v2: support GFX7 as well. remove cntxcntl in compute ring funcs because CPC doesn't support this packet. v3: fix reduntant judgement in cntxcntl. v4: some cleanups, don't change cs_submit() v5: keep old MESA supported & bump up KMS version. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Ack-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: change job->ctx field nameMonk Liu2016-09-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | job->ctx actually is a fence_context of the entity it belongs to, naming it as ctx is too vague, and we'll need add amdgpu_ctx into the job structure later. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: prevent command submission failures under memory pressure v2Christian König2016-09-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | As last resort try to evict BOs from the current working set into other memory domains. This effectively prevents command submission failures when VM page tables have been swapped out. v2: fix typos Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: add gart recovery by gtt list V2Chunming Zhou2016-08-311-0/+1
| | | | | | | | | | | | | | | | | | | | V2: a. gart recovery should be ahead of ring test. b. rename to amdgpu_ttm_recover_gart Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: link all gtt when binding them V2Chunming Zhou2016-08-311-0/+4
| | | | | | | | | | | | | | | | | | V2: spin lock instead of mutex for gtt list Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: add SI DPM support (v4)Maruthi Bayyavarapu2016-08-311-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | v2: corrected register offset shift v3: rebase fixes v4: fix firmware paths add SI smc firmware versions for sysfs dump remove unused function forward define fix the tahiti specific value of DEEP_SLEEP_CLK_SEL field fix to miss adding thermal controller use vram_type instead of checking mem_gddr5 flag fix incorrect index of CG_FFCT_0 register fix incorrect reading method at si_get_current_pcie_speed Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: introduce pcie port read/write entryHuang Rui2016-08-311-0/+4
| | | | | | | | | | | | | | | | | | | | This patch adds pcie port read/write entry, because it will be also used on si dpm part. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: add DMA implementation for si v8Ken Wang2016-08-311-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | v4: rebase fixes v5: use the generic nop fill v6: rebase fixes v7: rebase fixes copy count fixes from Jonathan general cleanup add fill buffer implementation v8: adapt write_pte and copy_pte to latest changes Signed-off-by: Ken Wang <Qingqing.Wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu:add switch buffer to end of CS (v2)Monk Liu2016-08-301-0/+2
| | | | | | | | | | | | | | | | | | | | sync switch buffer scheme with windows kmd for gfx v8, step1: append a switch_buffer to the end of CS v2:rebase on latest staging Signed-off-by: Monk Liu <Monk.Liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: throttle buffer migrations at CS using a fixed MBps limit (v2)Marek Olšák2016-08-301-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The old mechanism used a per-submission limit that didn't take previous submissions within the same time frame into account. It also filled VRAM slowly when VRAM usage dropped due to a big eviction or buffer deallocation. This new method establishes a configurable MBps limit that is obeyed when VRAM usage is very high. When VRAM usage is not very high, it gives the driver the freedom to fill it quickly. The result is more consistent performance. It can't keep the BO move rate low if lots of evictions are happening due to VRAM fragmentation, or if a big buffer is being migrated. The amdgpu.moverate parameter can be used to set a non-default limit. Measurements can be done to find out which amdgpu.moverate setting gives the best results. Mainly APUs and cards with small VRAM will benefit from this. For F1 2015, anything with 2 GB VRAM or less will benefit. Some benchmark results - F1 2015 (Tonga 2GB): Limit MinFPS AvgFPS Old code: 14 32.6 128 MB/s: 28 41 64 MB/s: 15.5 43 32 MB/s: 28.7 43.4 8 MB/s: 27.8 44.4 8 MB/s: 21.9 42.8 (different run) Random drops in Min FPS can still occur (due to fragmented VRAM?), but the average FPS is much better. 8 MB/s is probably a good limit for this game & the current VRAM management. The random FPS drops are still to be tackled. v2: use a spinlock Signed-off-by: Marek Olšák <marek.olsak@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu/vce3: add support for third vce ringAlex Deucher2016-08-251-1/+1
| | | | | | | | | | | | | | | | | | Not of much use at the moment (we don't really use the second ring either), but may be useful later. Reviewed-by: JimQu <Jim.Qu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: track the number of vce ringsAlex Deucher2016-08-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | Rather than using a hardcoded value. This allows different versions to expose more or less rings. No functional change. Reviewed-by: JimQu <Jim.Qu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: rename suspend_kms and resume_kmsAlex Deucher2016-08-251-2/+2
| | | | | | | | | | | | | | | | | | The old names were dragged over from radeon. The new ones better match the naming conventions used in the driver. No functional change. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: cleanup amdgpu_vm_bo_update paramsChristian König2016-08-221-1/+1
| | | | | | | | | | | | | | | | Make it more obvious what we are doing here. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: link all shadow bo V2Chunming Zhou2016-08-221-0/+5
| | | | | | | | | | | | | | | | | | | | | | V2: 1. use mutex instead of spinlock for shadow list, since its process could sleep. 2. move list_del to bo destroy phase. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: update pd shadow while updating pd V2Chunming Zhou2016-08-221-0/+1
| | | | | | | | | | | | | | | | | | V2: Checking if shadow is valid. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: sync bo and shadow V3Chunming Zhou2016-08-221-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use shadow flag to judge which direction to sync. V2: Don't need bo pin, so remove it. V3: 1. Split to two functions, one is backup_to_shadow, another is restore_from_shadow. 2. Clean up previous shadow direction difinitions. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: add need backup function V2Chunming Zhou2016-08-191-0/+1
| | | | | | | | | | | | | | | | | | V2: add checking if need backup in amdgpu_bo_create. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | amdgpu: move ttm stuff to amdgpu_ttm.hFlora Cui2016-08-191-43/+2
| | | | | | | | | | | | | | Signed-off-by: Flora Cui <Flora.Cui@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: stop splitting PTE commands into smaller onesChristian König2016-08-161-0/+3
| | | | | | | | | | | | | | | | | | | | | | It doesn't make much sense to create bigger commands first which we then need to split into smaller one again. Just make sure the commands we create aren't to big in the first place. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: cleanup the write_pte implementationsChristian König2016-08-161-6/+4
| | | | | | | | | | | | | | | | | | We don't need the gart mapping handling here any more. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: add shadow flag V2Chunming Zhou2016-08-161-0/+8
| | | | | | | | | | | | | | | | | | | | Indicate if need to sync between bo and shadow, where sync to where. V2: Rename to backup_shadow Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: add shadow bo support V2Chunming Zhou2016-08-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | shadow bo is the shadow of a bo, which is always in GTT, which can be used to backup the original bo. V2: reference shadow parent, shadow bo will be freed by who allocted him. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: Provide page_flip_target hookMichel Dänzer2016-08-101-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Now we can program a flip during a vertical blank period, if it's the one targeted by the flip (or a later one). This allows simplifying amdgpu_flip_work_func considerably. agd: update dce_virtual.c as well. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: cleanup VM fragment definesChristian König2016-08-101-4/+4
| | | | | | | | | | | | | | | | We can actually do way more than just the 64KB we currently used as default. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: remove unused VM definesChristian König2016-08-101-2/+0
| | | | | | | | | | | | | | | | Not used for a long time. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amd/amdgpu: Simplify bitfield operations in gfx v8Tom St Denis2016-08-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces a new macro WREG32_FIELD which is used to write to a register with a new value in a field. It's designed to replace the pattern: tmp = RREG32(mmFoo); tmp &= ~REG__FIELD_MASK; tmp |= new_value << REG__FIELD__SHIFT; WREG32(mmFoo, tmp) with: WREG32_FIELD(Foo, FIELD, new_value); Unlike WREG32_P() it understands offsets/masks and doesn't require the caller to shift the value (or mask properly). It's applied where suitable in the gfx_v8_0.c driver to start with. Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: Change the virtual_display type from int to char*.Emily Deng2016-08-101-1/+2
| | | | | | | | | | | | | | | | | | | | | | For virtual display feature, as there may be multiple GPUs, for user could choose whiche GPU need to enable this feature, change the type of virtual_display from int to char*. The variable will be set like this virtual_display="xxxx:xx:xx.x;xxxx:xx:xx.x;". Signed-off-by: Emily Deng <Emily.Deng@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: Define one variable for virtual display.Emily Deng2016-08-081-0/+1
| | | | | | | | | | | | | | | | | | | | For virtual display feature, define on variable in amdgpu.ko. When want to enable virtual display feature, need set the option "amdgpu.virtual_display=1". And then disable vga render and crtc if have DCE engine. Signed-off-by: Emily Deng <Emily.Deng@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: use the kernel zone memory size as the max remote memory in amdgpuKen Wang2016-08-081-0/+2
| | | | | | | | | | | | Signed-off-by: Ken Wang <Qingqing.Wang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: implement amdgpu_fill_buffer()Flora Cui2016-08-081-0/+5
| | | | | | | | | | | | | | | | | | so that bo could be set to some pattern Signed-off-by: Flora Cui <Flora.Cui@amd.com> Reviewed-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: use modules parameter to ctrl deep sleep feature in dpmRex Zhu2016-08-081-0/+1
| | | | | | | | | | | | Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: implement vce3 check/post_soft_resetChunming Zhou2016-08-081-0/+1
| | | | | | | | | | | | Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: implement UVD6 check/pre/post_soft_resetChunming Zhou2016-08-081-0/+1
| | | | | | | | | | | | Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: implement gmc8 check/pre/post_soft_resetChunming Zhou2016-08-081-0/+2
| | | | | | | | | | | | Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: implement sdma3 check/pre/post_soft_resetChunming Zhou2016-08-081-0/+1
| | | | | | | | | | | | Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: implement gfx8 check_soft_resetChunming Zhou2016-08-081-0/+4
| | | | | | | | | | | | Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: add check_soft_reset ip funcChunming Zhou2016-08-081-0/+1
|/ | | | | | | | It is used to identify if the ip block is hang. Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable UVD context buffer for older HWChristian König2016-07-291-0/+1
| | | | | | | | | Supported starting on certain FW versions. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Leo Liu <leo.liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add a fence timeout for the IB tests v2Christian König2016-07-291-2/+2
| | | | | | | | | | | 10ms should be enough for now. v2: fix some typos in CIK code Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: use begin/end_use for VCE power/clock gatingChristian König2016-07-291-0/+1
| | | | | | | | This fixes turning power and clock on when it is actually needed. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add begin/end_use ring callbacksChristian König2016-07-291-0/+3
| | | | | | | | For manual UVD/VCE power and clock gating. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: remove fence_lockChristian König2016-07-291-1/+0
| | | | | | | | | Was never used as far as I can see. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: fix indentation in struct amdgpu_ringChristian König2016-07-291-2/+2
| | | | | | | Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add read/write function for GC CAC programmingRex Zhu2016-07-071-0/+6
| | | | | | | | | Create a GC_CAC_IND_INDEX/DATA pair of funcitons to program all the CAC registers Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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