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| author | Cédric Le Goater <clg@kaod.org> | 2021-08-04 12:51:10 +0530 |
|---|---|---|
| committer | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2021-08-06 12:25:41 +0530 |
| commit | e62291f3d9f529032c5aacbaaad4d4738f879640 (patch) | |
| tree | 66492f4cc0b39067527da6a4b082652234b88bd6 /hw | |
| parent | 004f0a7a1a6cf99a95d56007e8d7428953751f31 (diff) | |
| download | skiboot-e62291f3d9f529032c5aacbaaad4d4738f879640.zip skiboot-e62291f3d9f529032c5aacbaaad4d4738f879640.tar.gz skiboot-e62291f3d9f529032c5aacbaaad4d4738f879640.tar.bz2 | |
psi/p10: Activate StoreEOI
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/psi.c | 15 |
1 files changed, 14 insertions, 1 deletions
@@ -749,11 +749,14 @@ static const struct irq_source_ops psi_p10_irq_ops = { .name = psi_p9_irq_name, }; +#define PSIHB10_CAN_STORE_EOI(x) XIVE2_STORE_EOI_ENABLED + static void psi_init_p10_interrupts(struct psi *psi) { struct proc_chip *chip; u64 val; uint32_t esb_shift = 16; + uint32_t flags = XIVE_SRC_LSI; /* Grab chip */ chip = get_chip(psi->chip_id); @@ -772,6 +775,16 @@ static void psi_init_p10_interrupts(struct psi *psi) prlog(PR_DEBUG, "PSI[0x%03x]: ESB MMIO at @%p\n", psi->chip_id, psi->esb_mmio); + /* Store EOI */ + if (PSIHB10_CAN_STORE_EOI(psi)) { + val = in_be64(psi->regs + PSIHB_CR); + val |= PSIHB10_CR_STORE_EOI; + out_be64(psi->regs + PSIHB_CR, val); + prlog(PR_DEBUG, "PSI[0x%03x]: store EOI is enabled\n", + psi->chip_id); + flags |= XIVE_SRC_STORE_EOI; + } + /* Grab and configure the notification port */ val = xive2_get_notify_port(psi->chip_id, XIVE_HW_SRC_PSI); val |= PSIHB_ESB_NOTIF_VALID; @@ -788,7 +801,7 @@ static void psi_init_p10_interrupts(struct psi *psi) psi->chip_id, 0xf & (chip->ec_level >> 4), chip->ec_level & 0xf); xive2_register_hw_source(psi->interrupt, P9_PSI_NUM_IRQS, - esb_shift, psi->esb_mmio, XIVE_SRC_LSI, + esb_shift, psi->esb_mmio, flags, psi, &psi_p10_irq_ops); /* Reset irq handling and switch to ESB mode */ |