Searched hist:db7eb68817dad1a429a2f6518926791c47091b1c (Results 1 – 4 of 4) sorted by relevance
| /rk3399_ARM-atf/include/lib/cpus/aarch64/ |
| H A D | cortex_x4.h | db7eb68817dad1a429a2f6518926791c47091b1c Tue May 21 10:56:37 UTC 2024 Ryan Everett <ryan.everett@arm.com> fix(cpus): workaround for Cortex-X4 erratum 3076789
Cortex-X4 erratum 3076789 is a Cat B erratum that is present
in revisions r0p0, r0p1 and is fixed in r0p2.
The workaround is to set chicken bits CPUACTLR3_EL1[14:13]=0b11
and CPUACTLR_EL1[52] = 1.
Expected performance degradation is < 0.5%, but isolated
benchmark components might see higher impact.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2432808/latest
Change-Id: Ib100bfab91efdb6330fdcdac127bcc5732d59196
Signed-off-by: Ryan Everett <ryan.everett@arm.com>
|
| /rk3399_ARM-atf/lib/cpus/aarch64/ |
| H A D | cortex_x4.S | db7eb68817dad1a429a2f6518926791c47091b1c Tue May 21 10:56:37 UTC 2024 Ryan Everett <ryan.everett@arm.com> fix(cpus): workaround for Cortex-X4 erratum 3076789
Cortex-X4 erratum 3076789 is a Cat B erratum that is present
in revisions r0p0, r0p1 and is fixed in r0p2.
The workaround is to set chicken bits CPUACTLR3_EL1[14:13]=0b11
and CPUACTLR_EL1[52] = 1.
Expected performance degradation is < 0.5%, but isolated
benchmark components might see higher impact.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2432808/latest
Change-Id: Ib100bfab91efdb6330fdcdac127bcc5732d59196
Signed-off-by: Ryan Everett <ryan.everett@arm.com>
|
| /rk3399_ARM-atf/docs/design/ |
| H A D | cpu-specific-build-macros.rst | db7eb68817dad1a429a2f6518926791c47091b1c Tue May 21 10:56:37 UTC 2024 Ryan Everett <ryan.everett@arm.com> fix(cpus): workaround for Cortex-X4 erratum 3076789
Cortex-X4 erratum 3076789 is a Cat B erratum that is present
in revisions r0p0, r0p1 and is fixed in r0p2.
The workaround is to set chicken bits CPUACTLR3_EL1[14:13]=0b11
and CPUACTLR_EL1[52] = 1.
Expected performance degradation is < 0.5%, but isolated
benchmark components might see higher impact.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2432808/latest
Change-Id: Ib100bfab91efdb6330fdcdac127bcc5732d59196
Signed-off-by: Ryan Everett <ryan.everett@arm.com>
|
| /rk3399_ARM-atf/lib/cpus/ |
| H A D | cpu-ops.mk | db7eb68817dad1a429a2f6518926791c47091b1c Tue May 21 10:56:37 UTC 2024 Ryan Everett <ryan.everett@arm.com> fix(cpus): workaround for Cortex-X4 erratum 3076789
Cortex-X4 erratum 3076789 is a Cat B erratum that is present
in revisions r0p0, r0p1 and is fixed in r0p2.
The workaround is to set chicken bits CPUACTLR3_EL1[14:13]=0b11
and CPUACTLR_EL1[52] = 1.
Expected performance degradation is < 0.5%, but isolated
benchmark components might see higher impact.
SDEN documentation:
https://developer.arm.com/documentation/SDEN2432808/latest
Change-Id: Ib100bfab91efdb6330fdcdac127bcc5732d59196
Signed-off-by: Ryan Everett <ryan.everett@arm.com>
|