Hi,
I have an SH7723 based board and I need to use HW acceleration to speedup the
drawing. The problem with the sh7722gfx.c is with the interrupt handlers. Macros
like BEU_IRQ, VEU_IRQ, TDG_IRQ and JPU_IRQ are not defined so even the
compilation can not succeed. I could find the IRQ numbers for the units except
JPU - which seems not to be present on sh7723. The TDG/2DG IRQ number conflicts
with another device here. AFAIK the memory map is a bit different on sh7723 as
well.
Probably, I will need to accelerate just the BLIT and FLIP functions. I will
generate frames independently and need just to show them as fast as possible. I
guess init of BEU (Blit Engine Unit) is sufficient and will handle this job.
My questions are:
Can be the HW BLITTING enabled with the BEU? Can it be accelerated at all?
Have someone experience with sh7723 acceleration?
Hope the modification of the existing sh7722gfx.c kernel driver to support
sh7723 will not be so difficult. Any hints?
Thanks a lot,
Rene
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