A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-12 07:37:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

msm: ADSPRPC: Embed job type in context identifier

Browse source 
Current context identifier doesn't hold job type. Reserve 2 bits
and embed job type in the context that is sent to DSP. Using context
DSP can differentiate synchronous and asychronous jobs.

Change-Id: Id1ec07a298ee874d212955e226bb51095456c272
Signed-off-by: Himateja Reddy <hmreddy@codeaurora.org>
This commit is contained in:
Himateja Reddy 2020-03-27 12:51:42 -07:00
commit 8e1099c8af
1 changed files with 15 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

22
drivers/char/adsprpc.c
View file

@ -90,14 +90,19 @@
* Fastrpc context ID bit-map:
*
* bits 0-3 : type of remote PD
* bits 4-12 : index in context table
* bits 13-63 : incrementing context ID
* bit 4 : type of job (sync/async)
* bit 5 : reserved
* bits 6-14 : index in context table
* bits 15-63 : incrementing context ID
*/
#define FASTRPC_CTX_MAX (512)
#define FASTRPC_CTX_TABLE_IDX_POS (4)
#define FASTRPC_CTX_JOBID_POS (13)
#define FASTRPC_CTXID_MASK ((FASTRPC_CTX_MAX - 1) << FASTRPC_CTX_TABLE_IDX_POS)
#define FASTRPC_CTX_JOB_TYPE_POS (4)
#define FASTRPC_CTX_TABLE_IDX_POS (6)
#define FASTRPC_CTX_JOBID_POS (15)
#define FASTRPC_CTX_TABLE_IDX_MASK \
((FASTRPC_CTX_MAX - 1) << FASTRPC_CTX_TABLE_IDX_POS)
#define FASTRPC_ASYNC_JOB_MASK (1)
/* Reserve few entries in context table for critical kernel RPC calls
* to avoid user invocations from exhausting all entries.
@ -1439,7 +1444,9 @@ static int context_alloc(struct fastrpc_file *fl, uint32_t kernel,
if (!chan->ctxtable[ii]) {
chan->ctxtable[ii] = ctx;
ctx->ctxid = (me->jobid[cid] << FASTRPC_CTX_JOBID_POS)
| (ii << FASTRPC_CTX_TABLE_IDX_POS);
| (ii << FASTRPC_CTX_TABLE_IDX_POS)
| ((ctx->asyncjob.isasyncjob &&
FASTRPC_ASYNC_JOB_MASK) << FASTRPC_CTX_JOB_TYPE_POS);
break;
}
}
@ -3784,7 +3791,8 @@ static int fastrpc_rpmsg_callback(struct rpmsg_device *rpdev, void *data,
trace_fastrpc_rpmsg_response(cid, rsp->ctx,
rsp->retval, rsp_flags, early_wake_time);
index = (uint32_t)((rsp->ctx & FASTRPC_CTXID_MASK) >> 4);
index = (uint32_t)((rsp->ctx & FASTRPC_CTX_TABLE_IDX_MASK)
>> FASTRPC_CTX_TABLE_IDX_POS);
VERIFY(err, index < FASTRPC_CTX_MAX);
if (err)
goto bail;