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path: root/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c (follow)
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2022-11-09drm/amd/display: Enforce minimum prefetch time for low memclk on DCN32Dillon Varone1-2/+10
[WHY?] Data return times when using lowest memclk can be <= 60us, which can cause underflow on high bandwidth displays with a workload. [HOW?] Enforce a minimum prefetch time during validation for low memclk modes. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Alan Liu <HaoPing.Liu@amd.com> Signed-off-by: Dillon Varone <Dillon.Varone@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-09drm/amd/display: Fix FCLK deviation and tool compile issuesChaitanya Dhere1-1/+1
[Why] Recent backports from open source do not have header inclusion pattern that is consistent with inclusion style in the rest of the file. This breaks the internal tool builds as well. A recent commit erronously modified the original DML formula for calculating ActiveClockChangeLatencyHidingY. This resulted in a FCLK deviation from the golden values. [How] Change the way in which display_mode_vba.h is included so that it is consistent with the inclusion style in rest of the file which also fixes the tool build. Restore the DML formula to its original state to fix the FCLK deviation. Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Alan Liu <HaoPing.Liu@amd.com> Signed-off-by: Chaitanya Dhere <chaitanya.dhere@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-02drm/amd/display: Add DSC delay factor workaroundGeorge Shen1-2/+3
[Why] Certain 4K high refresh rate modes requiring DSC are exhibiting top of screen underflow corruption. Increasing the DSC delay by a factor of 6 percent stops the underflow for most use cases. [How] Multiply DSC delay requirement in DML by a factor. Add debug option to make this DSC delay factor configurable. Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com> Acked-by: Alex Hung <alex.hung@amd.com> Signed-off-by: George Shen <george.shen@amd.com> Tested-by: Mark Broadworth <mark.broadworth@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-02drm/amd/display: Fix DCN32 DSC delay calculationGeorge Shen1-1/+1
[Why] DCN32 DSC delay calculation had an unintentional integer division, resulting in a mismatch against the DML spreadsheet. [How] Cast numerator to double before performing the division. Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com> Acked-by: Alex Hung <alex.hung@amd.com> Signed-off-by: George Shen <george.shen@amd.com> Tested-by: Mark Broadworth <mark.broadworth@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-19drm/amd/display: Port DCN30 420 logic to DCN32Chris Park1-0/+26
[Why] 420 modes are limited by FMT buffer width of 4096 which requires multi-pipe support in form of ODM combine. If 420 modes have greater HActive than 4096, the DML logic should accomodate whether it should be rejected, or ODM combine 2:1 or 4:1 is triggered accordingly. [How] FMT Buffer limit of 4096 in DCN32. Force ODM combine depending on HActive and FMT Buffer limit. Reject modes if TMDS 420 and above 4096. Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Chris Park <chris.park@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-13drm/amd/display: Reduce number of arguments of dml32_CalculatePrefetchSchedule()Nathan Chancellor1-44/+31
Several of the arguments are identical between the two call sites and they can be accessed through the 'struct vba_vars_st' pointer. This reduces the total amount of stack space that dml32_ModeSupportAndSystemConfigurationFull() uses by 208 bytes with LLVM 16 (1936 -> 1728), helping clear up the following clang warning: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1721:6: error: stack frame size (2152) exceeds limit (2048) in 'dml32_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than] void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib) ^ 1 error generated. Additionally, while modifying the arguments to dml32_CalculatePrefetchSchedule(), use 'v' consistently, instead of 'v' mixed with 'mode_lib->vba'. Link: https://github.com/ClangBuiltLinux/linux/issues/1681 Reported-by: "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@gmail.com> Tested-by: Maíra Canal <mairacanal@riseup.net> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-13drm/amd/display: Reduce number of arguments of dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport()Nathan Chancellor1-139/+109
Most of the arguments are identical between the two call sites and they can be accessed through the 'struct vba_vars_st' pointer created at the top of dml32_ModeSupportAndSystemConfigurationFull(). This reduces the total amount of stack space that dml32_ModeSupportAndSystemConfigurationFull() uses by 216 bytes with LLVM 16 (2152 -> 1936), helping clear up the following clang warning: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1721:6: error: stack frame size (2152) exceeds limit (2048) in 'dml32_ModeSupportAndSystemConfigurationFull' [-Werror,-Wframe-larger-than] void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib) ^ 1 error generated. Additionally, while modifying the arguments to dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport(), use 'v' consistently, instead of 'v' mixed with 'mode_lib->vba'. Link: https://github.com/ClangBuiltLinux/linux/issues/1681 Reported-by: "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@gmail.com> Tested-by: Maíra Canal <mairacanal@riseup.net> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-13drm/amd/display: Optimizations for DML mathAric Cyr1-17/+14
[why] Conditionals in the DML basic math functions significantly impact mode enumeration. [how] Remove conditionals for floor/ceil operations which are used frequently in DML and add an assertion for invalid callers using zero granuality. Fix existing callers that rely on 0 granularity. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com> Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com> Signed-off-by: Aric Cyr <aric.cyr@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-13drm/amd/display: remove possible condition with no effect (if == else)Yang Li1-4/+0
Conditional statements have no effect to next process.So remove it. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2028 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-13drm/amd/display: Simplify bool conversionYang Li1-1/+1
The result of relational operation is Boolean, and the question mark expression is redundant. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2027 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-29drm/amd/display: clean up one inconsistent indentingYang Li1-1/+1
1. The indentation of statements in the same curly bracket should be consistent. 2. Variable declarations in the same function should be aligned. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=1887 Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=1888 Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=1889 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-29drm/amd/display: Set ODM policy based on number of DSC slicesTaimur Hassan1-2/+5
[Why & How] Add addtional check in CalculateODMMode for cases where the ODM combine is needed due to number of DSC slices. Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Acked-by: Brian Chang <Brian.Chang@amd.com> Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-10Revert "drm/amd/display: reduce stack for dml32_CalculateSwathAndDETConfiguration"Rodrigo Siqueira1-57/+64
This reverts commit bac4b41d917a1d999308bb1e779f8c3b39c19f67. This commit was a part of a patchset responsible for reducing the stack size. However, after some other changes, this commit becomes unnecessary, so we are reverting it here. Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-10Revert "drm/amd/display: reduce stack for dml32_CalculateVMRowAndSwath"Rodrigo Siqueira1-48/+62
This reverts commit c3b3f9ba25e6cbe59673505fbc5fff6c4cda0ef7. This commit was a part of a patchset responsible for reducing the stack size. However, after some other changes, this commit becomes unnecessary, so we are reverting it here. Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-10Revert "drm/amd/display: reduce stack for dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport"Rodrigo Siqueira1-83/+104
This reverts commit 3c3abac60117cfd09460980d9a14c253b37f7b00. This commit was a part of a patchset responsible for reducing the stack size. However, after some other changes, this commit becomes unnecessary, so we are reverting it here. Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-10Revert "drm/amd/display: reduce stack for dml32_CalculatePrefetchSchedule"Rodrigo Siqueira1-184/+210
This reverts commit 86e4863e67a9bd1e257f162f3d740ebb61206c91. This commit was a part of a patchset responsible for reducing the stack size. However, after some other changes, this commit becomes unnecessary, so we are reverting it here. Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-28drm/amd/display: Clean up some inconsistent indentingJiapeng Chong1-4/+4
No functional modification involved. smatch warning: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_util_32.c:713 dml32_CalculateSwathWidth() warn: inconsistent indenting. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-25drm/amd/display: reduce stack for dml32_CalculatePrefetchScheduleAlex Deucher1-210/+184
Move stack variables to dummy structure. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
2022-07-25drm/amd/display: reduce stack for dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupportAlex Deucher1-104/+83
Move stack variables to dummy structure. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
2022-07-25drm/amd/display: reduce stack for dml32_CalculateVMRowAndSwathAlex Deucher1-62/+48
Move stack variables to dummy structure. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
2022-07-25drm/amd/display: reduce stack for dml32_CalculateSwathAndDETConfigurationAlex Deucher1-64/+57
Move stack variables to dummy structure. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
2022-07-25drm/amd/display: Update DML logic for unbounded req handlingJun Lei1-6/+45
[why] Unbounded request logic in resource/DML has some issues where unbounded request is being enabled incorrectly. SW today enables unbounded request unconditionally in hardware, on the assumption that HW can always support it in single pipe scenarios. This worked until now because the same assumption is made in DML. A new DML update is needed to fix a bug, where there are single pipe scenarios where unbounded cannot be enabled, and this change in DML needs to be ported in, and dcn32 resource logic fixed. [how] First, dcn32_resource should program unbounded req in HW according to unbounded req enablement output from DML, as opposed to DML input. Second, port in DML update which disables unbounded req in some scenarios to fix an issue with poor stutter performance Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Jun Lei <jun.lei@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-25drm/amd/display: Remove unused dml32_CalculatedoublePipeDPPCLKAndSCLThroughput functionMaíra Canal1-54/+0
Remove dml32_CalculatedoublePipeDPPCLKAndSCLThroughput function, which is not used in the codebase. This was pointed by clang with the following warning: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_util_32.c:393:6: warning: no previous prototype for function 'dml32_CalculatedoublePipeDPPCLKAndSCLThroughput' [-Wmissing-prototypes] void dml32_CalculatedoublePipeDPPCLKAndSCLThroughput( ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_util_32.c:393:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void dml32_CalculatedoublePipeDPPCLKAndSCLThroughput( ^ static 1 warning generated. Reviewed-by: André Almeida <andrealmeid@igalia.com> Signed-off-by: Maíra Canal <mairacanal@riseup.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-25drm/amd/display: Fix hard hang if DSC is disabledRodrigo Siqueira1-7/+12
We want to calculate the DTB clock values when DSC is enabled; however, this is not the current behavior implemented in DCN32. Right now, DML is trying to calculate DSC values even if DSC is disabled; as a result, we can have a hard hang due to wrong clock calculation. This commit fixes this issue by moving the calculation after the DSC check. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-07drm/amdgpu/display: Remove duplicated argument to ||Zhongjun Tan1-1/+1
Remove duplicated argument to || Signed-off-by: Zhongjun Tan <tanzhongjun@coolpad.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-10drm/amdgpu/display: Remove unnecessary typecasts and fix build issuesChandan Vurdigere Nataraj1-13/+12
[Why] Getting below errors: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1414:5: error: implicit conversion from enumeration type 'enum scan_direction_class' to different enumeration type 'enum dm_rotation_angle' [-Werror,-Wenum-conversion] mode_lib->vba.SourceScan[k], ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_32.c:1744:22: error: implicit conversion from enumeration type 'enum scan_direction_class' to different enumeration type 'enum dm_rotation_angle' [-Werror,-Wenum-conversion] && (!(!IsVertical(mode_lib->vba.SourceScan[k])) || mode_lib->vba.DCCEnable[k] == true)) { ~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~ 2 errors generated. drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_util_32.c:5484:18: error: implicit conversion from enumeration type 'RequestType' to different enumeration type 'enum RequestType' [-Werror,-Wenum-conversion] RequestLuma = REQ_256Bytes; ~ ^~~~~~~~~~~~ 18 errors of similar kind [How] 1. Add typecast at relevant places 2. Move the enum RequestType definition ahead of declarations Signed-off-by: Chandan Vurdigere Nataraj <chandan.vurdigerenataraj@amd.com> Reviewed-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-03drm/amd/display: DML changes for DCN32/321Aurabindo Pillai1-0/+6254
DML is required for display configuration modelling for things like bandwidth management and validation. Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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