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| author | Cédric Le Goater <clg@kaod.org> | 2020-06-12 13:37:24 +0200 |
|---|---|---|
| committer | Oliver O'Halloran <oohall@gmail.com> | 2020-06-30 11:47:38 +1000 |
| commit | bd70a097a4a98af27820bcc1b7b7c7388e88ebed (patch) | |
| tree | 15a344ab3b8f949012d87633d32a7efb19ea46f8 /hw/xive.c | |
| parent | 2476b5b5ebf5d664b8c260eeaae80b6a32174218 (diff) | |
| download | skiboot-bd70a097a4a98af27820bcc1b7b7c7388e88ebed.zip skiboot-bd70a097a4a98af27820bcc1b7b7c7388e88ebed.tar.gz skiboot-bd70a097a4a98af27820bcc1b7b7c7388e88ebed.tar.bz2 | |
xive/p9: Introduce XIVE_ESB_SHIFT
Each interrupt source is associated with a pair of ESB pages. The even
page is for trigger and the odd page is for management.
Reviewed-by: Gustavo Romero <gromero@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'hw/xive.c')
| -rw-r--r-- | hw/xive.c | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -100,7 +100,6 @@ /* Use 64K for everything by default */ #define IC_PAGE_SIZE 0x10000 #define TM_PAGE_SIZE 0x10000 -#define IPI_ESB_SHIFT (16 + 1) #define EQ_ESB_SHIFT (16 + 1) /* VC BAR contains set translations for the ESBs and the EQs. @@ -165,6 +164,9 @@ #define SBE_SIZE (XIVE_INT_COUNT / SBE_PER_BYTE) #define IVT_SIZE (XIVE_INT_COUNT * sizeof(struct xive_ive)) +/* Use 64K for everything by default */ +#define XIVE_ESB_SHIFT (16 + 1) /* trigger + mgmt pages */ + /* Max number of EQs. We allocate an indirect table big enough so * that when fully populated we can have that many EQs. * @@ -2559,8 +2561,8 @@ void xive_register_ipi_source(uint32_t base, uint32_t count, void *data, /* Callbacks assume the MMIO base corresponds to the first * interrupt of that source structure so adjust it */ - mmio_base = x->esb_mmio + (1ul << IPI_ESB_SHIFT) * base_idx; - __xive_register_source(x, s, base, count, IPI_ESB_SHIFT, mmio_base, + mmio_base = x->esb_mmio + (1ul << XIVE_ESB_SHIFT) * base_idx; + __xive_register_source(x, s, base, count, XIVE_ESB_SHIFT, mmio_base, flags, false, data, ops); } @@ -2662,7 +2664,7 @@ static struct xive *init_one_xive(struct dt_node *np) if (XIVE_CAN_STORE_EOI(x)) flags |= XIVE_SRC_STORE_EOI; __xive_register_source(x, &x->ipis, x->int_base, - x->int_hw_bot - x->int_base, IPI_ESB_SHIFT, + x->int_hw_bot - x->int_base, XIVE_ESB_SHIFT, x->esb_mmio, flags, true, NULL, NULL); /* Register escalation sources */ |