From: Chris Ring <cring@ti.com>
Date: Mon, 14 Apr 2014 15:12:48 +0000 (-0700)
Subject: BIOS: Remove dead DRA7XX VirtQueue code
X-Git-Tag: 3.22.00.04_eng~1
X-Git-Url: https://git.ti.com/gitweb?p=ipc%2Fipcdev.git;a=commitdiff_plain;h=655e99ba755626211d881fceb7a645dcb2c860b9

BIOS: Remove dead DRA7XX VirtQueue code

Because BIOS-side virtqueue-based processors never run as the 'host',
half of the protocol is unused.  This commit removes that dead code
for the BIOS-side DRA7XX VirtQueue driver.
---

diff --git a/packages/ti/ipc/family/vayu/VirtQueue.c b/packages/ti/ipc/family/vayu/VirtQueue.c
index 9bf09d3..639cf66 100644
--- a/packages/ti/ipc/family/vayu/VirtQueue.c
+++ b/packages/ti/ipc/family/vayu/VirtQueue.c
@@ -197,9 +197,6 @@ typedef struct VirtQueue_Object {
     /* Last available index; updated by VirtQueue_getAvailBuf */
     UInt16                  last_avail_idx;
 
-    /* Last available index; updated by VirtQueue_addUsedBuf */
-    UInt16                  last_used_idx;
-
     /* Will eventually be used to kick remote processor */
     UInt16                  procId;
 
@@ -245,11 +242,6 @@ static inline Void * mapPAtoVA(UInt pa)
     return (Void *)((pa & 0x000fffffU) | IPC_MEM_VRING0);
 }
 
-static inline UInt mapVAtoPA(Void * va)
-{
-    return ((UInt)va & 0x000fffffU) | 0x9cf00000U;
-}
-
 /*!
  * ======== VirtQueue_kick ========
  */
@@ -296,56 +288,6 @@ Int VirtQueue_addUsedBuf(VirtQueue_Handle vq, Int16 head, Int len)
     return (0);
 }
 
-/*!
- * ======== VirtQueue_addAvailBuf ========
- */
-Int VirtQueue_addAvailBuf(VirtQueue_Object *vq, Void *buf)
-{
-    UInt16 avail;
-    IArg key;
-
-    if (vq->num_free == 0) {
-        /* There's no more space */
-        Error_raise(NULL, Error_E_generic, 0, 0);
-    }
-
-    vq->num_free--;
-
-    key = GateHwi_enter(vq->gateH);
-    avail =  vq->vring.avail->idx++ % vq->vring.num;
-
-    vq->vring.desc[avail].addr = mapVAtoPA(buf);
-    vq->vring.desc[avail].len = RP_MSG_BUF_SIZE;
-    GateHwi_leave(vq->gateH, key);
-
-    return (vq->num_free);
-}
-
-/*!
- * ======== VirtQueue_getUsedBuf ========
- */
-Void *VirtQueue_getUsedBuf(VirtQueue_Object *vq)
-{
-    UInt16 head;
-    Void *buf;
-    IArg key;
-
-    key = GateHwi_enter(vq->gateH);
-    /* There's nothing available? */
-    if (vq->last_used_idx == vq->vring.used->idx) {
-        buf = NULL;
-    }
-    else {
-        head = vq->vring.used->ring[vq->last_used_idx % vq->vring.num].id;
-        vq->last_used_idx++;
-
-        buf = mapPAtoVA(vq->vring.desc[head].addr);
-    }
-    GateHwi_leave(vq->gateH, key);
-
-    return (buf);
-}
-
 /*!
  * ======== VirtQueue_getAvailBuf ========
  */