ARM: add revision info for PL310 errata 588369 and 727915
PATCH 1/1 ARM: add revision info for PL310 errata 588369 and 727915
Add revision info for PL310_ERRATA_588369 and PL310_ERRATA_727915 to help people understand if they need to enable the errata for their hardware.
--- arch/arm/mm/Kconfig | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
arch/arm/mm/Kconfig +4 -3
@@ -907,8 +907,8 @@ config PL310_ERRATA_588369 They are architecturally defined to behave as the execution of a clean operation followed immediately by an invalidate operation, both performing to the same memory location. This functionality - is not correctly implemented in PL310 as clean lines are not - invalidated as a result of these operations. + is not correctly implemented in PL310 prior to r2p0 (fixed in r2p0) + as clean lines are not invalidated as a result of these operations. config PL310_ERRATA_727915 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
@@ -919,7 +919,8 @@ config PL310_ERRATA_727915 PL310 can handle normal accesses while it is in progress. Under very rare circumstances, due to this erratum, write data can be lost when PL310 treats a cacheable write transaction during a Clean & - Invalidate by Way operation. + Invalidate by Way operation. Revisions prior to r3p1 are affected by + this errata (fixed in r3p1). config PL310_ERRATA_753970 bool "PL310 errata: cache sync operation may be faulty"
Signature · 1 line
1.8.3.2
PATCH 1/1 ARM: add revision info for PL310 errata 588369 and 727915
Quoted 5 lines · Shawn Guo
Add revision info for
PL310_ERRATA_588369andPL310_ERRATA_727915to help people understand if they need to enable the errata for their hardware.Signed-off-by Shawn Guo <[email protected]>
Any comments on this patch? Otherwise, I'm going to throw it into the patch system.
Shawn
Quoted 32 lines
--- arch/arm/mm/Kconfig | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)arch/arm/mm/Kconfig +4
-3@@ -907,8 +907,8 @@ config PL310_ERRATA_588369 They are architecturally defined to behave as the execution of a clean operation followed immediately by an invalidate operation, both performing to the same memory location. This functionality - is not correctly implemented in PL310 as clean lines are not - invalidated as a result of these operations. + is not correctly implemented in PL310 prior to r2p0 (fixed in r2p0) + as clean lines are not invalidated as a result of these operations. config PL310_ERRATA_727915 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"@@ -919,7 +919,8 @@ config PL310_ERRATA_727915 PL310 can handle normal accesses while it is in progress. Under very rare circumstances, due to this erratum, write data can be lost when PL310 treats a cacheable write transaction during a Clean & - Invalidate by Way operation. + Invalidate by Way operation. Revisions prior to r3p1 are affected by + this errata (fixed in r3p1). config PL310_ERRATA_753970 bool "PL310 errata: cache sync operation may be faulty"Signature · 1 line
1.8.3.2
PATCH 1/1 ARM: add revision info for PL310 errata 588369 and 727915
Quoted 9 lines · Shawn Guo
Quoted 5 lines · Shawn Guo
Add revision info for
PL310_ERRATA_588369andPL310_ERRATA_727915to help people understand if they need to enable the errata for their hardware.Signed-off-by Shawn Guo <[email protected]>Any comments on this patch? Otherwise, I'm going to throw it into the patch system.
I don't see anything wrong with this change.
Signature · 2 lines
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PATCH 1/1 ARM: add revision info for PL310 errata 588369 and 727915
Quoted 6 lines · Russell King - ARM Linux
Quoted 5 lines · Shawn Guo
Quoted 4 lines · Shawn Guo
Add revision info for
PL310_ERRATA_588369andPL310_ERRATA_727915to help people understand if they need to enable the errata for their hardware.
Quoted 6 lines
Quoted 4 lines
Quoted 1 line
Signed-off-by Shawn Guo <[email protected]>Any comments on this patch? Otherwise, I'm going to throw it into the patch system.
I don't see anything wrong with this change.
Okay, just put it into patch tracker as 8090/1.
Shawn