- 29 5月, 2020 18 次提交
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由 Anthony Koo 提交于
Signed-off-by: NAnthony Koo <Anthony.Koo@amd.com> Reviewed-by: NAnthony Koo <Anthony.Koo@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Yongqiang Sun 提交于
[Why] dal side nv12 wa has a lot of side effects. KMD side wa is used, so this should be remove. [How] Removed wa from dal side. Signed-off-by: NYongqiang Sun <yongqiang.sun@amd.com> Reviewed-by: NTony Cheng <Tony.Cheng@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Dmytro Laktyushkin 提交于
Set the correct value to immediate flip required field. Signed-off-by: NDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: NSamson Tam <Samson.Tam@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Dmytro Laktyushkin 提交于
This change removes internal rounding in dml_log2 function. Dml_log2 is expected to return a float output. In case an int is needed dml will floor the output on it's own. Signed-off-by: NDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: NEric Bernstein <Eric.Bernstein@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Nicholas Kazlauskas 提交于
[Why] Region 4 is non cacheable and slower than using cache window 4. [How] Check the firmware version to determine how we should program the base address and memory windows. Signed-off-by: NNicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: NTony Cheng <Tony.Cheng@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Nicholas Kazlauskas 提交于
[Why] In order to switch over the inbox from region4 to cw4 we need to know if the firmware is capable of properly invalidating the cache before reading the commands. Easiest way is to just check the firmware version, but we don't have the helper macros or a way for the dmub_srv to know what version it is. [How] Add a new fw_version field to the creation parameters that driver can optional pass in. Assumes a version of 0x00000000 is invalid. Signed-off-by: NNicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: NTony Cheng <Tony.Cheng@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Jake Wang 提交于
[WHY] Currently we're copying the entire bios image into vbios. Loading time for FW with entire bios(54272 bytes) is 105138us. By copying only the sections of bios we're using(4436 bytes), loading time drops to 104326us which saves us 812us. [HOW] ROM header, master data table, and all data tables will be packed in contiguous manner. The offsets for the data tables are remapped to their newly packed location. Signed-off-by: NJake Wang <haonan.wang2@amd.com> Reviewed-by: NTony Cheng <Tony.Cheng@amd.com> Acked-by: NNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Wenjing Liu 提交于
[why] DP link layer CTS specs updated to change the test parameters in test 4.2.1.1. Before it requires source to delay 400us on aux no reply. With the specs updates Errata5, it requires source to delay 3.2ms (based on LTTPR aux timeout) This causes our test to fail after updating with the latest test equipment firmware. [how] the change is to allow LTTPR 3.2ms aux timeout delay by default. And only set to 400us if LTTPR is not present. Before this piece of logic is interwined with LTTPR support. Now we will default to 3.2ms aux timeout even if LTTPR support is not enabled by driver. Signed-off-by: NWenjing Liu <wenjing.liu@amd.com> Reviewed-by: NJun Lei <Jun.Lei@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Dmytro Laktyushkin 提交于
Preparation for new asic support. Signed-off-by: NDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: NEric Bernstein <Eric.Bernstein@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Aric Cyr 提交于
Signed-off-by: NAric Cyr <aric.cyr@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Wyatt Wood 提交于
[Why] Due to packing of abm_config_table, memory addresses aren't aligned to 32 bit boundary dmcub prefers. Therefore when using pointers to this structure, it's possible that dmcub will automatically align the data read from that address, yielding incorrect values. [How] Instead of packing 1 byte boundary, explicitly pack values to 4 byte boundary. Since there is a dependency on the existing iram table structure on driver side, we must copy to a second structure, which is aligned correctly, before passing to fw. Signed-off-by: NWyatt Wood <wyatt.wood@amd.com> Reviewed-by: NAnthony Koo <Anthony.Koo@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Anthony Koo 提交于
Signed-off-by: NAnthony Koo <Anthony.Koo@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Yongqiang Sun 提交于
[Why & How] Implement abm set_pipe call stacks Have some asics speicifc call stacks for abm. Signed-off-by: NYongqiang Sun <yongqiang.sun@amd.com> Reviewed-by: NAnthony Koo <Anthony.Koo@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Rodrigo Siqueira 提交于
Christian Koenig pointed out a code duplication related to bit swap in case of big-endian manipulation. This commit adds a helper for handling this verification and reduces the requirement of replicate some part of the code. Signed-off-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Reviewed-by: NWyatt Wood <Wyatt.Wood@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Nicholas Kazlauskas 提交于
[Why] If bss_data_size is 0 then we shouldn't be passing down fw_bss_data into the DMUB service since the region isn't really "valid." [How] Pass NULL instead if the size is 0. Signed-off-by: NNicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: NZhan Liu <Zhan.Liu@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Nicholas Kazlauskas 提交于
[Why] New unified firmware binary with only inst const still passes down fw_bss_data != NULL and params->bss_data_size == 0 from DM. This leads it into the legacy path causing firmware state allocation to be too small. [How] Check bss_data_size as well. Signed-off-by: NNicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: NZhan Liu <Zhan.Liu@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Sung Lee 提交于
[WHY] Failing validation when building scaling parameters causes corruption to occur due to pipe splitting with smaller pixel widths than HW supports. This needs to fail silently for now to hide the corruption until the corruption itself can be fixed. [HOW] Do not fail validation if building scaling params fails. Signed-off-by: NSung Lee <sung.lee@amd.com> Reviewed-by: NDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Jaehyun Chung 提交于
[Why] Remove dm_write_persistent_data and dm_read_persistent_data as persistence should be handled in DM. [How] Remove functions. Move read/write calls into DM layer while maintaining logic. Signed-off-by: NJaehyun Chung <jaehyun.chung@amd.com> Reviewed-by: NAnthony Koo <Anthony.Koo@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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- 28 5月, 2020 2 次提交
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由 Aric Cyr 提交于
[Why] If VUPDATE_END is before VUPDATE_START the delay calculated can become very large, causing a soft hang. [How] Take the absolute value of the difference between START and END. Signed-off-by: NAric Cyr <aric.cyr@amd.com> Reviewed-by: NNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: NQingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Simon Ser 提交于
get_cursor_position already handles the case where the cursor has negative off-screen coordinates by not setting dc_cursor_position.enabled. Signed-off-by: NSimon Ser <contact@emersion.fr> Fixes: 626bf90f ("drm/amd/display: add basic atomic check for cursor plane") Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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- 27 5月, 2020 1 次提交
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由 Kevin Wang 提交于
the origin design will use varible of "attr->states" to save node supported states on current gpu device, but for multi gpu device, when probe second gpu device, the driver will check attribute node states from previous gpu device wthether to create attribute node. it will cause other gpu device create attribute node faild. 1. add member attr_list into amdgpu_device to link supported device attribute node. 2. add new structure "struct amdgpu_device_attr_entry{}" to track device attribute state. 3. drop member "states" from amdgpu_device_attr. v2: 1. move "attr_list" into amdgpu_pm and rename to "pm_attr_list". 2. refine create & remove device node functions parameter. fix: drm/amdgpu: optimize amdgpu device attribute code Signed-off-by: NKevin Wang <kevin1.wang@amd.com> Reviewed-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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- 23 5月, 2020 7 次提交
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由 Felix Kuehling 提交于
This fixes an intermittent bug where a root PD clear operation still in progress could overwrite a PDE update done by the CPU, resulting in a VM fault. Fixes: 108b4d92 ("drm/amd/amdgpu: Update VM function pointer") Reported-by: NJay Cornwall <Jay.Cornwall@amd.com> Tested-by: NJay Cornwall <Jay.Cornwall@amd.com> Signed-off-by: NFelix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: NChristian König <christian.koenig@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Bhawanpreet Lakha 提交于
[Why] Previously we used the s3 codepath for gpu reset. This can lead to issues in certain case where we end of waiting for fences which will never come (because parts of the hw are off due to gpu reset) and we end up waiting forever causing a deadlock. [How] Handle GPU reset separately from normal s3 case. We essentially need to redo everything we do in s3, but avoid any drm calls. For GPU reset case suspend: -Acquire DC lock -Cache current dc_state -Commit 0 stream/planes to dc (this puts dc into a state where it can be powered off) -Disable interrupts resume -Edit cached state to force full update -Commit cached state from suspend -Build stream and plane updates from the cached state -Commit stream/plane updates -Enable interrupts -Release DC lock v2: -Formatting -Release dc_state Signed-off-by: NBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Acked-by: NAlex Deucher <alexander.deucher@amd.com> Reviewed-by: NNicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Alex Deucher 提交于
Add some APU flags to simplify handling of different APU variants. It's easier to understand the special cases if we use names flags rather than checking device ids and silicon revisions. v2: rebase on latest code Acked-by: NEvan Quan <evan.quan@amd.com> Acked-by: NChristian König <christian.koenig@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 chen gong 提交于
[Problem description] 1. Boot up picasso platform, launches desktop, Don't do anything (APU enter into "gfxoff" state) 2. Remote login to platform using SSH, then type the command line: sudo su -c "echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level" sudo su -c "echo 2 > /sys/class/drm/card0/device/pp_dpm_sclk" (fix SCLK to 1400MHz) 3. Move the mouse around in Window 4. Phenomenon : The screen frozen Tester will switch sclk level during glmark2 run time. APU will enter "gfxoff" state intermittently during glmark2 run time. The system got hanged if fix GFXCLK to 1400MHz when APU is in "gfxoff" state. [Debug] 1. Fix SCLK to X MHz 1400: screen frozen, screen black, then OS will reboot. 1300: screen frozen. 1200: screen frozen, screen black. 1100: screen frozen, screen black, then OS will reboot. 1000: screen frozen, screen black. 900: screen frozen, screen black, then OS will reboot. 800: Situation Nomal, issue disappear. 700: Situation Nomal, issue disappear. 2. SBIOS setting: AMD CBS --> SMU Debug Options -->SMU Debug --> "GFX DLDO Psm Margin Control": 50 : Situation Nomal, issue disappear. 45 : Situation Nomal, issue disappear. 40 : Situation Nomal, issue disappear. 35 : Situation Nomal, issue disappear. 30 : screen black. 25 : screen frozen, then blurred screen. 20 : screen frozen. 15 : screen black. 10 : screen frozen. 5 : screen frozen, then blurred screen. 3. Disable GFXOFF feature Situation Nomal, issue disappear. [Why] Through a period of time debugging with Sys Eng team and SMU team, Sys Eng team said this is voltage/frequency marginal issue not a F/W or H/W bug. This experiment proves that default targetPsm [for f=1400MHz] is not sufficient when GFXOFF is enabled on Picasso. SMU team think it is an odd test conditions to force sclk="1400MHz" when GPU is in "gfxoff" state,then wake up the GFX. SCLK should be in the "lowest frequency" when gfxoff. [How] Disable gfxoff when setting manual mode. Enable gfxoff when setting other mode(exiting manual mode) again. By the way, from the user point of view, now that user switch to manual mode and force SCLK Frequency, he don't want SCLK be controlled by workload.It becomes meaningless to "switch to manual mode" if APU enter "gfxoff" due to lack of workload at this point. Tips: Same issue observed on Raven. Signed-off-by: Nchen gong <curry.gong@amd.com> Reviewed-by: NAlex Deucher <alexander.deucher@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Alex Deucher 提交于
Fix typos that prevented them from showing up. v2: switch other files in addition to pp_clk_voltage Fixes: 4e01847c ("drm/amdgpu: optimize amdgpu device attribute code") Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1150Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Acked-by: NEvan Quan <evan.quan@amd.com>
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由 Alex Deucher 提交于
We need to get the silicon revision id before we parse the firmware in order to load the correct gpu info firmware for raven2 variants. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1103Acked-by: NChristian König <christian.koenig@amd.com> Reviewed-by: NEvan Quan <evan.quan@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Alex Deucher 提交于
Move it into the fw_info function since it's logically part of the same functionality. Acked-by: NChristian König <christian.koenig@amd.com> Reviewed-by: NEvan Quan <evan.quan@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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- 22 5月, 2020 12 次提交
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由 Alan Swanson 提交于
Try to resize BAR0 to let CPU access all of VRAM on Navi. Syncs code with previous gfx generations from commit d6895ad3 ("drm/amdgpu: resize VRAM BAR for CPU access v6"). Signed-off-by: NAlan Swanson <reiver@improbability.net> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Alex Deucher 提交于
It's not implemented yet so just drop it so the sysfs pcie bw file returns an appropriate error instead of garbage. Reviewed-by: NYong Zhao <Yong.Zhao@amd.com> Reviewed-By: NKent Russell <kent.russell@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Alex Deucher 提交于
1. Initialize the counters to 0 in case the callback fails to initialize them. 2. The counters don't exist on APUs so return an error for them. 3. Return an error if the callback doesn't exist. Reviewed-by: NYong Zhao <Yong.Zhao@amd.com> Reviewed-By: NKent Russell <kent.russell@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Philip Yang 提交于
In free memory of gpu path, remove bo from validate_list to make sure restore worker don't access the BO any more, then unregister bo MMU interval notifier. Otherwise, the restore worker will crash in the middle of validating BO user pages if MMU interval notifer is gone. Signed-off-by: NPhilip Yang <Philip.Yang@amd.com> Reviewed-by: NFelix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Dan Carpenter 提交于
This loop in the error handling code should start a "i - 1" and end at "i == 0". Currently it starts a "i" and ends at "i == 1". The result is that it removes one attribute that wasn't created yet, and leaks the zeroeth attribute. Fixes: 4e01847c ("drm/amdgpu: optimize amdgpu device attribute code") Acked-by: NMichael J. Ruhl <michael.j.ruhl@intel.com> Reviewed-by: NChristian König <christian.koenig@amd.com> Reviewed-by: NKevin Wang <kevin1.wang@amd.com> Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Gustavo A. R. Silva 提交于
The current codebase makes use of one-element arrays in the following form: struct something { int length; u8 data[1]; }; struct something *instance; instance = kmalloc(sizeof(*instance) + size, GFP_KERNEL); instance->length = size; memcpy(instance->data, source, size); but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. So, replace the one-element array with a flexible-array member. Also, make use of the new struct_size() helper to properly calculate the size of struct smu10_voltage_dependency_table. This issue was found with the help of Coccinelle and, audited and fixed _manually_. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732 ("cxgb3/l2t: Fix undefined behaviour") Acked-by: NChristian König <christian.koenig@amd.com> Signed-off-by: NGustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Jinze Xu 提交于
[Why] When disconnect fe from be, something such as unstable clock may cause garbage occurs. [How] Send set avmute at the beginning of disable stream and send reset avmute at the end of enable stream. Signed-off-by: NJinze Xu <jinze.xu@amd.com> Reviewed-by: NAnthony Koo <Anthony.Koo@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: NTony Cheng <Tony.Cheng@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Stylon Wang 提交于
[Why] When "max bpc" is set to enable deep color, some modes are removed from the list if they fail validation on max bpc. These modes should be kept if they validates fine with lower bpc. [How] - Retry with lower bpc in mode validation. - Same in atomic commit to apply working bpc, not necessarily max bpc. Signed-off-by: NStylon Wang <stylon.wang@amd.com> Reviewed-by: NNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Dmytro Laktyushkin 提交于
Save the correct num vmid during resource creation and fix RN gpuvm level from 1 to 16 vmid entries. Signed-off-by: NDmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: NEric Bernstein <Eric.Bernstein@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Nicholas Kazlauskas 提交于
[Why] The minimum plane size we can support in DML is 16x16. If we try to pass a 16x16 plane with dynamic pipe split then validation will fail since it tries to split it into two pipes, each 8x8. Some userspace doesn't check that the commit fails and because the commit fails the old state is retained, resulting in corruption. [How] Add a workaround to avoid pipe split if any plane is 16x16 or smaller. Signed-off-by: NNicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: NAric Cyr <Aric.Cyr@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Nicholas Kazlauskas 提交于
[Why] We dropped the delay after changed the cursor functions locking the entire pipe to locking just the CURSOR registers to fix page flip stuttering - this introduced cursor stuttering instead, and an underflow issue. The cursor update can be delayed indefinitely if the cursor update repeatedly happens right around VUPDATE. The underflow issue can happen if we do a viewport update on a pipe on the same frame where a cursor update happens around VUPDATE - the old cursor registers are retained which can be in an invalid position. This can cause a pipe hang and indefinite underflow. [How] The complex, ideal solution to the problem would be a software triple buffering mechanism from the DM layer to program only one cursor update per frame just before VUPDATE. The simple workaround until we have that infrastructure in place is this change - bring back the delay until VUPDATE before locking, but with some corrections to the calculations. This didn't work for all timings before because the calculation for VUPDATE was wrong - it was using the offset from VSTARTUP instead and didn't correctly handle the case where VUPDATE could be in the back porch. Add a new hardware sequencer function to use the existing helper to calculate the real VUPDATE start and VUPDATE end - VUPDATE can last multiple lines after all. Change the udelay to incorporate the width of VUPDATE as well. Signed-off-by: NNicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: NAric Cyr <Aric.Cyr@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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由 Vladimir Stempen 提交于
[Why] DP training sequence to set SCRAMBLING_DISABLE bit properly based on training pattern - per DP Spec. [How] Update dpcd_pattern.v1_4.SCRAMBLING_DISABLE with 1 for TPS1, TPS2, TPS3, but not for TPS4. Signed-off-by: NVladimir Stempen <vladimir.stempen@amd.com> Reviewed-by: NWenjing Liu <Wenjing.Liu@amd.com> Acked-by: NRodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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