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charset="utf-8" From: Nabih Estefan Diaz Implemented GMAC IRQ Handling and added relevant trace-events Change-Id: I7a2d3cd3f493278bcd0cf483233c1e05c37488b7 Signed-off-by: Nabih Estefan Reviewed-by: Tyrone Ting --- hw/net/npcm_gmac.c | 40 ++++++++++++++++++++++++++++++++++++++++ hw/net/trace-events | 1 + 2 files changed, 41 insertions(+) diff --git a/hw/net/npcm_gmac.c b/hw/net/npcm_gmac.c index 98b3c33c94..44c4ffaff4 100644 --- a/hw/net/npcm_gmac.c +++ b/hw/net/npcm_gmac.c @@ -149,6 +149,46 @@ static bool gmac_can_receive(NetClientState *nc) return true; } =20 +/* + * Function that updates the GMAC IRQ + * It find the logical OR of the enabled bits for NIS (if enabled) + * It find the logical OR of the enabled bits for AIS (if enabled) + */ +static void gmac_update_irq(NPCMGMACState *gmac) +{ + /* + * Check if the normal interrupts summary is enabled + * if so, add the bits for the summary that are enabled + */ + if (gmac->regs[R_NPCM_DMA_INTR_ENA] & gmac->regs[R_NPCM_DMA_STATUS] & + (NPCM_DMA_INTR_ENAB_NIE_BITS)) { + gmac->regs[R_NPCM_DMA_STATUS] |=3D NPCM_DMA_STATUS_NIS; + } + /* + * Check if the abnormal interrupts summary is enabled + * if so, add the bits for the summary that are enabled + */ + if (gmac->regs[R_NPCM_DMA_INTR_ENA] & gmac->regs[R_NPCM_DMA_STATUS] & + (NPCM_DMA_INTR_ENAB_AIE_BITS)) { + gmac->regs[R_NPCM_DMA_STATUS] |=3D NPCM_DMA_STATUS_AIS; + } + + /* Get the logical OR of both normal and abnormal interrupts */ + int level =3D !!((gmac->regs[R_NPCM_DMA_STATUS] & + gmac->regs[R_NPCM_DMA_INTR_ENA] & + NPCM_DMA_STATUS_NIS) | + (gmac->regs[R_NPCM_DMA_STATUS] & + gmac->regs[R_NPCM_DMA_INTR_ENA] & + NPCM_DMA_STATUS_AIS)); + + /* Set the IRQ */ + trace_npcm_gmac_update_irq(DEVICE(gmac)->canonical_path, + gmac->regs[R_NPCM_DMA_STATUS], + gmac->regs[R_NPCM_DMA_INTR_ENA], + level); + qemu_set_irq(gmac->irq, level); +} + static ssize_t gmac_receive(NetClientState *nc, const uint8_t *buf, size_t= len) { /* Placeholder. Function will be filled in following patches */ diff --git a/hw/net/trace-events b/hw/net/trace-events index 33514548b8..56057de47f 100644 --- a/hw/net/trace-events +++ b/hw/net/trace-events @@ -473,6 +473,7 @@ npcm_gmac_reg_write(const char *name, uint64_t offset, = uint32_t value) "%s: offs npcm_gmac_mdio_access(const char *name, uint8_t is_write, uint8_t pa, uint= 8_t gr, uint16_t val) "%s: is_write: %" PRIu8 " pa: %" PRIu8 " gr: %" PRIu8= " val: 0x%04" PRIx16 npcm_gmac_reset(const char *name, uint16_t value) "%s: phy_regs[0][1]: 0x%= 04" PRIx16 npcm_gmac_set_link(bool active) "Set link: active=3D%u" +npcm_gmac_update_irq(const char *name, uint32_t status, uint32_t intr_en, = int level) "%s: Status Reg: 0x%04" PRIX32 " Interrupt Enable Reg: 0x%04" PR= IX32 " IRQ Set: %d" =20 # npcm_pcs.c npcm_pcs_reg_read(const char *name, uint16_t indirect_access_baes, uint64_= t offset, uint16_t value) "%s: IND: 0x%02" PRIx16 " offset: 0x%04" PRIx64 "= value: 0x%04" PRIx16 --=20 2.43.0.275.g3460e3d667-goog