| Message ID | 20230920-rmtfs-mem-guard-pages-v3-0-305b37219b78@quicinc.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | soc: qcom: rmtfs: Support dynamic allocation | expand |
On Wed, 20 Sep 2023 19:37:29 -0700, Bjorn Andersson wrote: > Some platforms have laxed requirements on the placement of the rmtfs > memory region, introduce support for guard pages to allow the DeviceTree > author to rely on the OS/Linux for placement of the region. > > Changes since v2: > - Rewrote DeviceTree binding description, to avoid dictating the OS > behavior. > - Adjusted addr and size before memremap(), to avoid mapping the guard > pages, and unnecessarily have to adjust the base pointer. > > [...] Applied, thanks! [1/3] dt-bindings: reserved-memory: rmtfs: Allow guard pages commit: 3ad96787949a96256931ca59aff73ea604bc0e6c [2/3] soc: qcom: rmtfs: Support discarding guard pages commit: 9265bc6bce6919c771970e5a425a66551a1c78a0 Best regards,
Some platforms have laxed requirements on the placement of the rmtfs memory region, introduce support for guard pages to allow the DeviceTree author to rely on the OS/Linux for placement of the region. Changes since v2: - Rewrote DeviceTree binding description, to avoid dictating the OS behavior. - Adjusted addr and size before memremap(), to avoid mapping the guard pages, and unnecessarily have to adjust the base pointer. Changes since v1: - Drop qcom,alloc-size in favour of using reserved-memory/size - Introduce explicit property to signal that guard pages should be carved out from this region (rather than always do it in the dynamic case). - Drop the dma_alloc_coherent() based approach and just add support for the guard pages. - Added handling of failed reserved-memory allocation (patch 3) --- Bjorn Andersson (3): dt-bindings: reserved-memory: rmtfs: Allow guard pages soc: qcom: rmtfs: Support discarding guard pages soc: qcom: rtmfs: Handle reserved-memory allocation issues .../devicetree/bindings/reserved-memory/qcom,rmtfs-mem.yaml | 11 +++++++++++ drivers/soc/qcom/rmtfs_mem.c | 11 ++++++++++- 2 files changed, 21 insertions(+), 1 deletion(-) --- base-commit: 926f75c8a5ab70567eb4c2d82fbc96963313e564 change-id: 20230920-rmtfs-mem-guard-pages-d3d0ed0cb036 Best regards,