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Except HDP v5.2 all use a common logic for HDP flush. Use a generic
function. HDP v5.2 forces NO_KIQ logic, revisit it later.
Reapply after fixing up an HDP regression.
v2: merge the fix (Alex)
Signed-off-by: Lijo Lazar <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Reviewed-by: Felix Kuehling <[email protected]> (v1)
Signed-off-by: Alex Deucher <[email protected]>
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Reading back the remapped HDP flush register seems to cause
problems on some platforms. All we need is a read, so read back
the memcfg register.
Fixes: abe1cbaec6cf ("drm/amdgpu/hdp6.0: do a posting read when flushing HDP")
Reported-by: Alexey Klimov <[email protected]>
Link: https://lists.freedesktop.org/archives/amd-gfx/2025-April/123150.html
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4119
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3908
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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This reverts commit 18a878fd8aef0ec21648a3782f55a79790cd4073.
Revert this temporarily to make it easier to fix a regression
in the HDP handling.
Reviewed-by: Felix Kuehling <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Except HDP v5.2 all use a common logic for HDP flush. Use a generic
function. HDP v5.2 forces NO_KIQ logic, revisit it later.
Signed-off-by: Lijo Lazar <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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atom bios header files are not required in these files.
Signed-off-by: Lijo Lazar <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Need to read back to make sure the write goes through.
Cc: David Belanger <[email protected]>
Reviewed-by: Frank Min <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Cc: [email protected]
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when use cpu to do page table update under sriov runtime, since mmio
access is blocked, kiq has to be used to flush hdp.
change WREG32_NO_KIQ to WREG32 to allow kiq.
Signed-off-by: Victor Zhao <[email protected]>
Reviewed-by: Emily Deng <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Use an inline function for version check. Gives more flexibility to
handle any format changes.
Signed-off-by: Lijo Lazar <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Use 6.1.0 register offset and remove unused variable.
v2: clean up logic (Alex)
Signed-off-by: Lang Yu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Enable HDP 6.0 clock gating.
Signed-off-by: Evan Quan <[email protected]>
Reviewed-by: Hawking Zhang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Unify hdp related function into hdp structure for hdp version 6.
V2: Remove hdp invalidate function as hdp v6 doesn't have read cache.
Signed-off-by: Likun Gao <[email protected]>
Reviewed-by: Hawking Zhang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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