Cédric Le Goater aa8cc84d88 ppc/pnv: Compute the PHB index from the PHB4 PEC model
Use the num_stacks class attribute to compute the PHB index depending
on the PEC index :

  * PEC0 provides 1 PHB  (PHB0)
  * PEC1 provides 2 PHBs (PHB1 and PHB2)
  * PEC2 provides 3 PHBs (PHB3, PHB4 and PHB5)

The routine pnv_pec_phb_offset() is a bit complex but it also prepares
ground for PHB5 which has a different layout of stacks: 3 per PECs.

Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20211213132830.108372-12-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2021-12-17 17:57:19 +01:00
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