Searched hist:fdb1964c34968921379d3592e7ac6e9a685dbab1 (Results 1 – 5 of 5) sorted by relevance
| /rk3399_ARM-atf/include/lib/xlat_tables/ |
| H A D | xlat_tables_v2_helpers.h | fdb1964c34968921379d3592e7ac6e9a685dbab1 Thu Sep 28 20:58:12 UTC 2017 Sandrine Bailleux <sandrine.bailleux@arm.com> xlat: Introduce MAP_REGION2() macro
The current implementation of the memory mapping API favours mapping
memory regions using the biggest possible block size in order to
reduce the number of translation tables needed.
In some cases, this behaviour might not be desirable. When translation
tables are edited at run-time, coarse-grain mappings like that might
need splitting into finer-grain tables. This operation has a
performance cost.
The MAP_REGION2() macro allows to specify the granularity of
translation tables used for the initial mapping of a memory region.
This might increase performance for memory regions that are likely to
be edited in the future, at the expense of a potentially increased
memory footprint.
The Translation Tables Library Design Guide has been updated to
explain the use case for this macro. Also added a few intermediate
titles to make the guide easier to digest.
Change-Id: I04de9302e0ee3d326b8877043a9f638766b81b7b
Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
|
| H A D | xlat_tables_v2.h | fdb1964c34968921379d3592e7ac6e9a685dbab1 Thu Sep 28 20:58:12 UTC 2017 Sandrine Bailleux <sandrine.bailleux@arm.com> xlat: Introduce MAP_REGION2() macro
The current implementation of the memory mapping API favours mapping
memory regions using the biggest possible block size in order to
reduce the number of translation tables needed.
In some cases, this behaviour might not be desirable. When translation
tables are edited at run-time, coarse-grain mappings like that might
need splitting into finer-grain tables. This operation has a
performance cost.
The MAP_REGION2() macro allows to specify the granularity of
translation tables used for the initial mapping of a memory region.
This might increase performance for memory regions that are likely to
be edited in the future, at the expense of a potentially increased
memory footprint.
The Translation Tables Library Design Guide has been updated to
explain the use case for this macro. Also added a few intermediate
titles to make the guide easier to digest.
Change-Id: I04de9302e0ee3d326b8877043a9f638766b81b7b
Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
|
| /rk3399_ARM-atf/plat/nvidia/tegra/soc/t210/ |
| H A D | plat_setup.c | 28db3e96efd3e172a2973962130dca952c9f21cd Sat Feb 17 05:02:32 UTC 2018 Andreas Färber <afaerber@suse.de> tegra: Fix mmap_region_t struct mismatch
Commit fdb1964c34968921379d3592e7ac6e9a685dbab1 ("xlat: Introduce
MAP_REGION2() macro") added a granularity field to mmap_region_t.
Tegra platforms were using the v2 xlat_tables implementation in
common/tegra_common.mk, but v1 xlat_tables.h headers in soc/*/plat_setup.c
where arrays are being defined. This caused the next physical address to
be read as granularity, causing EINVAL error and triggering an assert.
Consistently use xlat_tables_v2.h header to avoid this.
Fixes ARM-software/tf-issues#548.
Signed-off-by: Andreas Färber <afaerber@suse.de>
|
| /rk3399_ARM-atf/plat/nvidia/tegra/soc/t186/ |
| H A D | plat_setup.c | 28db3e96efd3e172a2973962130dca952c9f21cd Sat Feb 17 05:02:32 UTC 2018 Andreas Färber <afaerber@suse.de> tegra: Fix mmap_region_t struct mismatch
Commit fdb1964c34968921379d3592e7ac6e9a685dbab1 ("xlat: Introduce
MAP_REGION2() macro") added a granularity field to mmap_region_t.
Tegra platforms were using the v2 xlat_tables implementation in
common/tegra_common.mk, but v1 xlat_tables.h headers in soc/*/plat_setup.c
where arrays are being defined. This caused the next physical address to
be read as granularity, causing EINVAL error and triggering an assert.
Consistently use xlat_tables_v2.h header to avoid this.
Fixes ARM-software/tf-issues#548.
Signed-off-by: Andreas Färber <afaerber@suse.de>
|
| /rk3399_ARM-atf/plat/nvidia/tegra/include/ |
| H A D | tegra_private.h | 28db3e96efd3e172a2973962130dca952c9f21cd Sat Feb 17 05:02:32 UTC 2018 Andreas Färber <afaerber@suse.de> tegra: Fix mmap_region_t struct mismatch
Commit fdb1964c34968921379d3592e7ac6e9a685dbab1 ("xlat: Introduce
MAP_REGION2() macro") added a granularity field to mmap_region_t.
Tegra platforms were using the v2 xlat_tables implementation in
common/tegra_common.mk, but v1 xlat_tables.h headers in soc/*/plat_setup.c
where arrays are being defined. This caused the next physical address to
be read as granularity, causing EINVAL error and triggering an assert.
Consistently use xlat_tables_v2.h header to avoid this.
Fixes ARM-software/tf-issues#548.
Signed-off-by: Andreas Färber <afaerber@suse.de>
|