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path: root/drivers/gpu/drm/amd/amdgpu/soc15.c
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* drm/amdgpu: enable mmhub clock gating for rnPrike Liang2019-08-221-1/+3
| | | | | | | | Enable mmhub midle grain and light sleep clock gating. Signed-off-by: Prike Liang <Prike.Liang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable gfx clock gating for rnPrike Liang2019-08-221-1/+7
| | | | | | | | Enable gfx cg/mg/cp etc clock gating. Signed-off-by: Prike Liang <Prike.Liang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add and enable gfxoff featureAaron Liu2019-08-221-0/+5
| | | | | | | | | | This patch updates gfxoff feature. Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/powerplay: add power up/down SDMA interfaces for renoirAaron Liu2019-08-221-2/+2
| | | | | | | | | 1.Implement PowerUpSDMA/PowerDownSDMA interfaces in the swSMU for renoir 2.adjust smu ip block ahead of gfx&sdma ip block Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/powerplay: add smu ip block for renoir (v2)Aaron Liu2019-08-221-0/+2
| | | | | | | | | | add swSMU [smu_v12_0] for renoir v2: whitespace fixes (Alex) Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/gfx9: update pg_flags after determining if gfx off is possibleAlex Deucher2019-08-211-5/+0
| | | | | | | | | | | | | | | We need to set certain power gating flags after we determine if the firmware version is sufficient to support gfxoff. Previously we set the pg flags in early init, but we later we might have disabled gfxoff if the firmware versions didn't support it. Move adding the additional pg flags after we determine whether or not to support gfxoff. Fixes: 005440066f92 ("drm/amdgpu: enable gfxoff again on raven series (v2)") Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Tested-by: Tom St Denis <tom.stdenis@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Kai-Heng Feng <kai.heng.feng@canonical.com>
* drm/amdgpu: Use new mode2 reset interface for RV.Andrey Grodzovsky2019-08-151-8/+17
| | | | | | | | | | | | Integrate the mode2 reset into rest sequence. v2: Check ppfuncs pointer for NULL Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable clock gating for renoirAaron Liu2019-08-121-0/+1
| | | | | | | | | | enable gfx&common clock gating for renoir Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add VCN2.0 to Renoir IP blocksLeo Liu2019-08-121-0/+2
| | | | | | | | | Thus enable VCN2.0 for Renoir Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-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 psp_v12_0 for renoir (v2)Aaron Liu2019-08-121-0/+2
| | | | | | | | | | | | | | 1. Add psp ip block 2. Use direct loading type by default and it can also config psp loading type. 3. Bypass sos fw loading and xgmi&ras interface v2: drop TA loading Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add asic funcs for renoirAaron Liu2019-08-121-0/+1
| | | | | | | | | | add asic funcs for renoir, init soc15_asic_funcs Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable dce virtual ip module for RenoirAaron Liu2019-08-121-0/+2
| | | | | | | Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Aaron Liu <aaron.liu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: set ip blocks for renoirHuang Rui2019-08-121-0/+7
| | | | | | | | | Enable ip blocks for renoir. Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add soc15 common ip block support for renoirHuang Rui2019-08-121-0/+6
| | | | | | | | | This patch adds common ip support for renoir. Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable mmhub clock gating for ArcturusLe Ma2019-08-121-1/+3
| | | | | | | | Init MC_MGCG/LS flag. Also apply to athub CG. Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add GFX_CP_LS flag to ArcturusLe Ma2019-08-121-0/+1
| | | | | | | | | Missed AMD_CG_SUPPORT_GFX_CP_LS accidently when commit patch before drm/amdgpu: enable gfx clock gating for Arcturus Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable sdma clock gating for ArcturusLe Ma2019-08-121-1/+3
| | | | | | | | | Init sdma MGCG/LS flag Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Feifei Xu <Feifei.Xu@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable hdp clock gating for ArcturusLe Ma2019-08-121-1/+3
| | | | | | | | | Init hdp MGCG/LS flag as Vega20 Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Feifei Xu <Feifei.Xu@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add hdp clock gating for ArcturusLe Ma2019-08-121-1/+6
| | | | | | | | | Add hdp CGLS for Arcturus in set common clockgating function Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Reviewed-by: Feifei Xu <Feifei.Xu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable gfx clock gating for ArcturusLe Ma2019-08-121-1/+4
| | | | | | | | | Init gfx MGCG/LS and CGCG/LS flag. Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Reviewed-by: Feifei Xu <Feifei.Xu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Fix pcie_bw on Vega20Kent Russell2019-08-021-8/+52
| | | | | | | | | | The registers used for VG20 are different in that certain performance counters were split off to TXCLK3/4. Vega10/12 doesn't have this, so add a new vg20_get_pcie_usage to reflect this change. Signed-off-by: Kent Russell <kent.russell@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Add amdgpu_asic_funcs.reset_method for Vega20Andrey Grodzovsky2019-08-021-0/+1
| | | | | | | | Fixes GPU reset crash. Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: cleanup vega10 SRIOV code pathMonk Liu2019-08-021-7/+4
| | | | | | | | | | | | | | | | | | we can simplify all those unnecessary function under SRIOV for vega10 since: 1) PSP L1 policy is by force enabled in SRIOV 2) original logic always set all flags which make itself a dummy step besides, 1) the ih_doorbell_range set should also be skipped for VEGA10 SRIOV. 2) the gfx_common registers should also be skipped for VEGA10 SRIOV. Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Emily Deng <Emily.Deng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add RREG64/WREG64(_PCIE) operationsTao Zhou2019-07-311-0/+45
| | | | | | | | | | add 64 bits register access functions v2: implement 64 bit functions in low level Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Dennis Li <dennis.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/powerplay: enable arcturus powerplayEvan Quan2019-07-301-0/+1
| | | | | | | | Arcturus powerplay is ready to use. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: add reset_method asic callback for soc15Alex Deucher2019-07-301-2/+15
| | | | | | | | APUs only support mode2 reset. dGPUs use either mode1 or baco depending on various conditions. Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: init arct external rev idHawking Zhang2019-07-181-0/+1
| | | | | | | | Properly set the external silicon revision id. Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Le Ma <Le.Ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: correct ip for mmHDP_READ_CACHE_INVALIDATE register accessLe Ma2019-07-181-1/+1
| | | | | | | | Use the proper IP index for HDP registers. Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Feifei Xu <Feifei.Xu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: enable VCN2.5 on ArcturusLeo Liu2019-07-181-0/+2
| | | | | | | | VCN is the video decode and encode engine on Arcturus Signed-off-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: Enable xgmi support for ArcturusOak Zeng2019-07-181-1/+1
| | | | | | | | xgmi is a high performance cross-GPU communication channel. Signed-off-by: Oak Zeng <Oak.Zeng@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Initialize asic functions for ArcturusOak Zeng2019-07-181-0/+1
| | | | | | | | | | After cherry-picking doorbell rework changes from drm-next branch, Arcturus asic functions pointer need to be initialized to init doorbell index for Arcturus. Signed-off-by: Oak Zeng <Oak.Zeng@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu/soc15: add Arcturus common ip blocksLe Ma2019-07-181-2/+16
| | | | | | | | Add common IP blocks for Arcturus. Signed-off-by: Le Ma <le.ma@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: dynamically initialize IP offset for ArcturusLe Ma2019-07-181-0/+3
| | | | | | | | Add support for the IP offsets on Arcturus. Signed-off-by: Le Ma <le.ma@amd.com> Acked-by: Snow Zhang < Snow.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/amdgpu: hide #warning for missing DC configArnd Bergmann2019-07-161-4/+0
| | | | | | | | | | | | | It is annoying to have #warnings that trigger in randconfig builds like drivers/gpu/drm/amd/amdgpu/soc15.c:653:3: error: "Enable CONFIG_DRM_AMD_DC for display support on SOC15." drivers/gpu/drm/amd/amdgpu/nv.c:400:3: error: "Enable CONFIG_DRM_AMD_DC for display support on navi." Remove these and rely on the users to turn these on. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amdgpu: Fix Vega20 Perf counter for pcie_bwKent Russell2019-07-161-2/+8
| | | | | | | | | The perf counter for Vega20 is 108, instead of 104 which it was on all previous GPUs, so add a check to use the appropriate value. Signed-off-by: Kent Russell <kent.russell@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/amd/amdgpu: Indent AMD_IS_APU properlyErnst Sjöstrand2019-06-251-2/+2
| | | | | | | | | Reported by smatch: drivers/gpu/drm/amd/amdgpu/soc15.c:715 soc15_get_pcie_usage() warn: inconsistent indenting And a similar one in si.c. Signed-off-by: Ernst Sjöstrand <ernstp@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* Merge branch 'drm-next' into drm-next-5.3Alex Deucher2019-06-251-1/+2
|\ | | | | | | | | | | Backmerge drm-next and fix up conflicts due to drmP.h removal. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| * Merge tag 'drm-misc-next-2019-06-14' of ↵Daniel Vetter2019-06-141-1/+2
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v5.3: UAPI Changes: Cross-subsystem Changes: - Add code to signal all dma-fences when freed with pending signals. - Annotate reservation object access in CONFIG_DEBUG_MUTEXES Core Changes: - Assorted documentation fixes. - Use irqsave/restore spinlock to add crc entry. - Move code around to drm_client, for internal modeset clients. - Make drm_crtc.h and drm_debugfs.h self-contained. - Remove drm_fb_helper_connector. - Add bootsplash to todo. - Fix lock ordering in pan_display_legacy. - Support pinning buffers to current location in gem-vram. - Remove the now unused locking functions from gem-vram. - Remove the now unused kmap-object argument from vram helpers. - Stop checking return value of debugfs_create. - Add atomic encoder enable/disable helpers. - pass drm_atomic_state to atomic connector check. - Add atomic support for bridge enable/disable. - Add self refresh helpers to core. Driver Changes: - Add extra delay to make MTP SDM845 work. - Small fixes to virtio, vkms, sii902x, sii9234, ast, mcde, analogix, rockchip. - Add zpos and ?BGR8888 support to meson. - More removals of drm_os_linux and drmP headers for amd, radeon, sti, r128, r128, savage, sis. - Allow synopsis to unwedge the i2c hdmi bus. - Add orientation quirks for GPD panels. - Edid cleanups and fixing handling for edid < 1.2. - Add runtime pm to stm. - Handle s/r in dw-hdmi. - Add hooks for power on/off to dsi for stm. - Remove virtio dirty tracking code, done in drm core. - Rework BO handling in ast and mgag200. Tiny conflict in drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c, needed #include <linux/slab.h> to make it compile. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/0e01de30-9797-853c-732f-4a5bd6e61445@linux.intel.com
| | * drm/amd: drop use of drmP.h in remaining filesSam Ravnborg2019-06-101-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this commit drm/amd/ has no longer any uses of the deprecated drmP.h header file. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20190609220757.10862-11-sam@ravnborg.org
| | * drm/amdgpu/soc15: skip reset on initAlex Deucher2019-05-201-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Not necessary on soc15 and breaks driver reload on server cards. Acked-by: Amber Lin <Amber.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
* | | drm/amdgpu: update golden setting programming logicHawking Zhang2019-06-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Since from soc15, make sure only AndMasked bit get changed when applied or_mask Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Le Ma <Le.Ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | drm/amdgpu: avoid to use SOC15_REG_OFFSET in static array for navi10Hawking Zhang2019-06-211-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | Move to the header file. Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | drm/amdgpu: update df_v3_6 for xgmi perfmons (v2)Jonathan Kim2019-06-201-0/+3
|/ / | | | | | | | | | | | | | | | | | | | | | | add pmu attribute groups and structures for perf events. add sysfs to track available df perfmon counters fix overflow handling in perfmon counter reads. v2: squash in fix (Alex) Signed-off-by: Jonathan Kim <Jonathan.Kim@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: Need to set the baco cap before baco resetEmily Deng2019-05-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | For passthrough, after rebooted the VM, driver will do a baco reset before doing other driver initialization during loading driver. For doing the baco reset, it will first check the baco reset capability. So first need to set the cap from the vbios information or baco reset won't be enabled. Signed-off-by: Emily Deng <Emily.Deng@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu/soc15: skip reset on initAlex Deucher2019-05-281-0/+5
| | | | | | | | | | | | | | Not necessary on soc15 and breaks driver reload on server cards. Acked-by: Amber Lin <Amber.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu/vega20: use mode1 reset for RAS and XGMIAlex Deucher2019-05-241-0/+9
| | | | | | | | | | | | | | | | If RAS or XGMI are enabled, you have to use mode1 reset rather than BACO. Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: RLC to program regs for Vega10 SR-IOVTrigger Huang2019-05-241-2/+10
| | | | | | | | | | | | | | | | | | Under Vega10 SR-IOV, with new RLC's new feature, VF should call RLC to program some registers if supported Signed-off-by: Trigger Huang <Trigger.Huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: Skip setting some regs under Vega10 VFTrigger Huang2019-05-241-5/+11
| | | | | | | | | | | | | | | | | | | | For Vega10 SR-IOV VF, skip setting some regs due to: 1, host will program them 2, avoid VF register programming violations Signed-off-by: Trigger Huang <Trigger.Huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: initialize PSP before IH under SR-IOVTrigger Huang2019-05-241-6/+18
| | | | | | | | | | | | | | | | | | | | In order to support new PSP feature that PSP may provide interface to program IH CNTL register, initialize PSP before IH under Vega10 SR-IOV VF Signed-off-by: Trigger Huang <Trigger.Huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | drm/amdgpu: Add PCIe replay count sysfs fileKent Russell2019-05-241-0/+14
| | | | | | | | | | | | | | | | | | Add a sysfs file for reporting the number of PCIe replays (NAKs). This returns the sum of NAKs received and NAKs generated Signed-off-by: Kent Russell <kent.russell@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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