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msm: gsi: Read 64-bit ring RP value from registers

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The DMA address allocated may be in 64-bit address
range if dma mask is set to 64-bit, the MSB register
value is required.

Signed-off-by: Cheng Zeng <quic_chenzeng@quicinc.com>

Change-Id: Ie091b01ac44e70d450a8d050855b5f3f0f510695
This commit is contained in:
Cheng Zeng
2022-03-31 14:09:51 +08:00
parent f7f3cc3ca5
commit 4c160e8d20
1 changed files with 6 additions and 1 deletions
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7
drivers/platform/msm/gsi/gsi.c
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@@ -2101,7 +2101,12 @@ static inline uint64_t gsi_read_event_ring_rp_ddr(struct gsi_evt_ring_props* pro
static inline uint64_t gsi_read_event_ring_rp_reg(struct gsi_evt_ring_props* props,
uint8_t id, int ee)
{
return gsihal_read_reg_nk(GSI_EE_n_EV_CH_k_CNTXT_4, ee, id);
uint64_t rp;
rp = gsihal_read_reg_nk(GSI_EE_n_EV_CH_k_CNTXT_4, ee, id);
rp |= ((uint64_t)gsihal_read_reg_nk(GSI_EE_n_EV_CH_k_CNTXT_5, ee, id)) << 32;
return rp;
}
static int __gsi_pair_msi(struct gsi_evt_ctx *ctx,