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msm: ipa4: add masked ipa_wigig debug registers values

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Wigig registers share info for two ring pointers in some cases.
add new fields that display only the relevant info per channel.
- Upper 16 bits of status ring HWHEAD are used for RX status ring.
Lower bits are used for TX status ring.
- For TX case: Lower 16 bits of the descriptor ring HWHEAD are
used for even ring IDs and Upper bits are used for odd ring IDs.

Change-Id: I440fc2c8c8881d435dfcf01411ae082f5d106899
Signed-off-by: Amir Levy <alevy@codeaurora.org>
This commit is contained in:
Amir Levy 2019-08-11 16:50:11 +03:00 • committed by Gerrit - the friendly Code Review server
commit a8eeb85625
1 changed files with 31 additions and 0 deletions
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31
drivers/platform/msm/ipa/ipa_clients/ipa_wigig.c
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@ -71,8 +71,10 @@ struct ipa_wigig_pipe_values {
uint8_t dir;
uint8_t tx_ring_id;
uint32_t desc_ring_HWHEAD;
uint16_t desc_ring_HWHEAD_masked;
uint32_t desc_ring_HWTAIL;
uint32_t status_ring_HWHEAD;
uint16_t status_ring_HWHEAD_masked;
uint32_t status_ring_HWTAIL;
};
@ -1059,6 +1061,9 @@ int ipa_wigig_save_regs(void)
for (i = 0; i < IPA_WIGIG_MAX_PIPES; i++) {
pipe_connected = (ipa_wigig_ctx->conn_pipes & (0x1 << i));
if (pipe_connected) {
uint32_t mask;
uint8_t shift;
ret = ipa_wigig_get_regs_addr(
&desc_ring_h, &desc_ring_t,
&status_ring_h, &status_ring_t, i);
@ -1083,12 +1088,38 @@ int ipa_wigig_save_regs(void)
readval = readl_relaxed(desc_ring_h);
ipa_wigig_ctx->regs_save.pipes_val[i].desc_ring_HWHEAD =
readval;
/* HWHEAD LSbs are for even IDs, MSbs for odd IDs */
if (i != IPA_CLIENT_WIGIG_PROD_IDX) {
mask = 0xFFFF0000;
shift = 16;
if ((ipa_wigig_ctx->regs_save.pipes_val[i]
.tx_ring_id % 2) == 0) {
mask = 0x0000FFFF;
shift = 0;
}
ipa_wigig_ctx->regs_save.pipes_val[i]
.desc_ring_HWHEAD_masked =
(readval & mask) >> shift;
}
readval = readl_relaxed(desc_ring_t);
ipa_wigig_ctx->regs_save.pipes_val[i].desc_ring_HWTAIL =
readval;
readval = readl_relaxed(status_ring_h);
ipa_wigig_ctx->regs_save.pipes_val[i]
.status_ring_HWHEAD = readval;
/* two status rings, MSbs for RX LSbs for TX */
if (i == IPA_CLIENT_WIGIG_PROD_IDX) {
mask = 0xFFFF0000;
shift = 16;
} else {
mask = 0x0000FFFF;
shift = 0;
}
ipa_wigig_ctx->regs_save.pipes_val[i]
.status_ring_HWHEAD_masked =
(readval & mask) >> shift;
readval = readl_relaxed(status_ring_t);
ipa_wigig_ctx->regs_save.pipes_val[i]
.status_ring_HWTAIL = readval;