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foss-for-synopsys-dwc-arc-processors / linux

Helpful resources for users & developers of Linux kernel for ARC
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ARC: Proper kernel mapping #91

Closed VVIsaev closed 1 year ago

VVIsaev commented 2 years ago

Use proper page flags for different memory sections, for example X is used only for text section.

Previously we mapped kernel as an one big chunk.

Now kernel mapping is page-based, so it requires to have memblock initialized to be able to allocate page entries dynamically.

Signed-off-by: Vladimir Isaev isaev@synopsys.com

xxkent commented 1 year ago

I built this kernel with 4Kb page for kernel and user space size for HS58 and ran some tests. Here are the tests that completed successfully:

  1. tinymembench
  2. hackbench

Here are the tests that completed with errors:

  1. lmbench(result is Jtag stall)

Further investigation is required related to lmbench. The reason of this fail(SW/HW) is not clear now.

xxkent commented 1 year ago

Closing since these changes have already merged from a different branch.