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[PULL 24/60] ppc/pnv: add PHB4 helpers for user created pnv-phb
From: |
Daniel Henrique Barboza |
Subject: |
[PULL 24/60] ppc/pnv: add PHB4 helpers for user created pnv-phb |
Date: |
Wed, 31 Aug 2022 15:49:58 -0300 |
The PHB4 backend relies on a link with the corresponding PEC element.
This is trivial to do during machine_init() time for default devices,
but not so much for user created ones.
pnv_phb4_get_pec() is a small variation of the function that was
reverted by commit 9c10d86fee "ppc/pnv: Remove user-created PHB{3,4,5}
devices". We'll use it to determine the appropriate PEC for a given user
created pnv-phb that uses a PHB4 backend.
This is done during realize() time, in pnv_phb_user_device_init().
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Message-Id: <20220811163950.578927-8-danielhb413@gmail.com>
---
hw/ppc/pnv.c | 35 ++++++++++++++++++++++++++++++++---
1 file changed, 32 insertions(+), 3 deletions(-)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 9ce1ae7752..c34967cac7 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -281,6 +281,34 @@ static void pnv_dt_icp(PnvChip *chip, void *fdt, uint32_t
pir,
g_free(reg);
}
+static PnvPhb4PecState *pnv_phb4_get_pec(PnvChip *chip, PnvPHB4 *phb,
+ Error **errp)
+{
+ Pnv9Chip *chip9 = PNV9_CHIP(chip);
+ int chip_id = phb->chip_id;
+ int index = phb->phb_id;
+ int i, j;
+
+ for (i = 0; i < chip->num_pecs; i++) {
+ /*
+ * For each PEC, check the amount of phbs it supports
+ * and see if the given phb4 index matches an index.
+ */
+ PnvPhb4PecState *pec = &chip9->pecs[i];
+
+ for (j = 0; j < pec->num_phbs; j++) {
+ if (index == pnv_phb4_pec_get_phb_id(pec, j)) {
+ return pec;
+ }
+ }
+ }
+ error_setg(errp,
+ "pnv-phb4 chip-id %d index %d didn't match any existing PEC",
+ chip_id, index);
+
+ return NULL;
+}
+
/*
* Adds a PnvPHB to the chip. Returns the parent obj of the
* PHB which varies with each version (phb version 3 is parented
@@ -302,10 +330,11 @@ Object *pnv_chip_add_phb(PnvChip *chip, PnvPHB *phb,
Error **errp)
chip8->num_phbs++;
return OBJECT(chip);
- } else {
- /* phb4 support will be added later */
- return NULL;
}
+
+ phb->pec = pnv_phb4_get_pec(chip, PNV_PHB4(phb->backend), errp);
+
+ return OBJECT(phb->pec);
}
static void pnv_chip_power8_dt_populate(PnvChip *chip, void *fdt)
--
2.37.2
- [PULL 13/60] ppc/pnv: remove pnv-phb4-root-port, (continued)
- [PULL 13/60] ppc/pnv: remove pnv-phb4-root-port, Daniel Henrique Barboza, 2022/08/31
- [PULL 15/60] ppc/pnv: remove pecc->rp_model, Daniel Henrique Barboza, 2022/08/31
- [PULL 14/60] ppc/pnv: remove root port name from pnv_phb_attach_root_port(), Daniel Henrique Barboza, 2022/08/31
- [PULL 16/60] ppc/pnv: remove PnvPHB4.version, Daniel Henrique Barboza, 2022/08/31
- [PULL 17/60] ppc/pnv: move attach_root_port helper to pnv-phb.c, Daniel Henrique Barboza, 2022/08/31
- [PULL 18/60] ppc/pnv: add phb-id/chip-id PnvPHB3RootBus properties, Daniel Henrique Barboza, 2022/08/31
- [PULL 20/60] ppc/pnv: set root port chassis and slot using Bus properties, Daniel Henrique Barboza, 2022/08/31
- [PULL 21/60] ppc/pnv: add helpers for pnv-phb user devices, Daniel Henrique Barboza, 2022/08/31
- [PULL 19/60] ppc/pnv: add phb-id/chip-id PnvPHB4RootBus properties, Daniel Henrique Barboza, 2022/08/31
- [PULL 22/60] ppc/pnv: turn chip8->phbs[] into a PnvPHB* array, Daniel Henrique Barboza, 2022/08/31
- [PULL 24/60] ppc/pnv: add PHB4 helpers for user created pnv-phb,
Daniel Henrique Barboza <=
- [PULL 23/60] ppc/pnv: enable user created pnv-phb for powernv8, Daniel Henrique Barboza, 2022/08/31
- [PULL 25/60] ppc/pnv: enable user created pnv-phb for powernv9, Daniel Henrique Barboza, 2022/08/31
- [PULL 26/60] ppc/pnv: change pnv_phb4_get_pec() to also retrieve chip10->pecs, Daniel Henrique Barboza, 2022/08/31
- [PULL 27/60] ppc/pnv: user creatable pnv-phb for powernv10, Daniel Henrique Barboza, 2022/08/31
- [PULL 29/60] ppc/pnv: fix QOM parenting of user creatable root ports, Daniel Henrique Barboza, 2022/08/31
- [PULL 28/60] ppc/pnv: consolidate pnv_parent_*_fixup() helpers, Daniel Henrique Barboza, 2022/08/31
- [PULL 30/60] ppc/ppc405: Remove taihu machine, Daniel Henrique Barboza, 2022/08/31
- [PULL 31/60] ppc/ppc405: Introduce a PPC405 generic machine, Daniel Henrique Barboza, 2022/08/31
- [PULL 32/60] ppc/ppc405: Move devices under the ref405ep machine, Daniel Henrique Barboza, 2022/08/31
- [PULL 33/60] ppc/ppc405: Move SRAM under the ref405ep machine, Daniel Henrique Barboza, 2022/08/31