This patchset allows the NXP's DPAA2 QMan Software portal CENA region to be cacheable as designed for the performance goal. Besides, the write allocate stash feature of the QMan requires the non-shareable attribute for this cache-enabled memory. So this patchset extends the arm64 ioremap with cache-enable and non-shareable first, then enables the CENA portal memory access in the QBMan driver, at last changes the ioremap call in dpio driver where the software portal CENA memory is mapped to be the correct one.
Haiying Wang (3): arm64: extend ioremap for cacheable non-shareable memory bus: fsl-mc: dpio: enable qbman CENA portal memory access bus: fsl-mc: dpio: change CENA regs to be cacheable arch/arm64/include/asm/io.h | 1 + arch/arm64/include/asm/pgtable-prot.h | 1 + drivers/staging/fsl-mc/bus/dpio/dpio-driver.c | 6 +++--- drivers/staging/fsl-mc/bus/dpio/qbman-portal.c | 23 +++++++++++++++++------ 4 files changed, 22 insertions(+), 9 deletions(-) -- 2.7.4