SYSLINK: ipc - Enable SWDMM memory region in SysMgr

This is a patch for near-term to enable MM to validate non-Tiler buffers.
This patch  maps the SW DMM region at 0x80000000 and of size 4MB into
the kernel space and also adds a new shared region for it in
platform_setup function. platform_override_config function is updated
to configure the messageq module with 3 heaps.
Signed-off-by: Suman Anna <s-anna@ti.com>

drivers/dsp/syslink/multicore_ipc/platform.c

@@ -140,6 +140,14 @@
 #define BOOTLOADPAGE_SLV_VRT_BASEADDR_APPM3	0x980FF000
 #define BOOTLOADPAGE_SLV_VRT_BASESIZE_APPM3	0x00001000
 
+/*! @brief Start of shared memory */
+#define SHAREDMEMORY_SWDMM_PHY_BASEADDR		0x87C00000
+#define SHAREDMEMORY_SWDMM_PHY_BASESIZE		0x00400000
+
+/*! @brief Start of SHM SW DMMfor Ducati */
+#define SHAREDMEMORY_SWDMM_SLV_VRT_BASEADDR	0x80000000
+#define SHAREDMEMORY_SWDMM_SLV_VRT_BASESIZE	0x00400000
+
 /*!
  *  @brief  Size of the shared memory heap, this heap is used for providing
  * shared memory to drivers/instances. Should not be used for any other purpose.
@@ -161,6 +169,10 @@
  */
 #define SMHEAP_SRINDEX_APPM3	1
 
+/*!
+ *  @brief  Shared region index for Shared memory SW DMM section.
+ */
+#define SMHEAP_SRINDEX_SWDMM	2
 
 /*!
  *  @brief  Shared region index for SysM3 boot load page
@@ -296,7 +308,7 @@ struct platform_proc_config_params {
 /*!
  *  @brief  Number of slave memory entries for OMAP4430.
  */
-#define NUM_MEM_ENTRIES			2
+#define NUM_MEM_ENTRIES			3
 
 /*!
  *  @brief  Number of slave memory entries for OMAP4430 SYSM3.
@@ -308,14 +320,12 @@ struct platform_proc_config_params {
  */
 #define NUM_MEM_ENTRIES_APPM3		1
 
-
 /*!
  *  @brief  Position of reset vector memory region in the memEntries array.
  */
 #define RESET_VECTOR_ENTRY_ID		0
 
-#define DUCATI_SHM_VA			0x98000000
-#define DUCATI_SHM_1_VA		0x98080000
+
 /** ============================================================================
  *  Globals
  *  ============================================================================
@@ -347,6 +357,18 @@ static struct proc4430_mem_entry mem_entries[NUM_MEM_ENTRIES] = {
 		SHAREDMEMORY_SLV_VRT_BASESIZE_APPM3,
 		/* SIZE		 : Size of the memory region */
 		true,		/* SHARE : Shared access memory? */
+	},
+	{
+		"DUCATI_SHM_SWDMM",	/* NAME	 : Name of the memory region */
+		SHAREDMEMORY_SWDMM_PHY_BASEADDR,
+		/* PHYSADDR	     : Physical address */
+		SHAREDMEMORY_SWDMM_SLV_VRT_BASEADDR,
+		/* SLAVEVIRTADDR  : Slave virtual address */
+		(u32) -1u,
+		/* MASTERVIRTADDR : Master virtual address (if known) */
+		SHAREDMEMORY_SWDMM_SLV_VRT_BASESIZE,
+		/* SIZE		: Size of the memory region */
+		true,		/* SHARE : Shared access memory? */
 	}
 };
 
@@ -485,6 +507,19 @@ s32 platform_setup(struct sysmgr_config *config)
 			0,
 			SHAREDMEMORY_PHY_BASESIZE_APPM3);
 
+	/* Map the static region */
+	info.src = SHAREDMEMORY_SWDMM_PHY_BASEADDR;
+	info.size = SHAREDMEMORY_SWDMM_PHY_BASESIZE;
+	info.is_cached = false;
+	status = platform_mem_map(&info);
+	if (status < 0)
+		goto mem_map_fail;
+
+	/* Create the shared region entry for the SW DMM heap */
+	sharedregion_add(SMHEAP_SRINDEX_SWDMM,
+			(void *)info.dst,
+			info.size);
+
 	proc4430_get_config(&proc_config);
 	status = proc4430_setup(&proc_config);
 	if (status < 0)
@@ -755,13 +790,27 @@ void platform_load_callback(void *arg)
 				sysmemmgr_xltflag_kvirt2phys);
 	info.base = (void *) SHAREDMEMORY_SLV_VRT_BASEADDR_APPM3;
 
-	/* Write info the boot load page */
+	/* Write info into the boot load page */
 	nwrite = sysmgr_put_object_config(proc_id,
 				(void *) &info,
 				SYSMGR_CMD_SHAREDREGION_ENTRY_START +
 					SMHEAP_SRINDEX_APPM3,
 				sizeof(struct sharedregion_info));
 	WARN_ON(nwrite != sizeof(struct sharedregion_info));
+
+	/* For SW DMM region */
+	sharedregion_get_table_info(SMHEAP_SRINDEX_SWDMM,
+				local_id,
+				&info);
+	info.base = (void *) SHAREDMEMORY_SWDMM_SLV_VRT_BASEADDR;
+
+	/* Write info into the boot load page */
+	nwrite = sysmgr_put_object_config(proc_id,
+				(void *) &info,
+				SYSMGR_CMD_SHAREDREGION_ENTRY_START +
+					SMHEAP_SRINDEX_SWDMM,
+				sizeof(struct sharedregion_info));
+	WARN_ON(nwrite != sizeof(struct sharedregion_info));
 	goto exit;
 
 proc_mgr_translate_addr_fail:

drivers/dsp/syslink/multicore_ipc/platformcfg.c

@@ -64,8 +64,9 @@ int platform_override_config(struct sysmgr_config *config)
 
 	/* Override the messageq default config */
 	/* We use 2 heaps, 1 for APPM3 and 1 for SYSM3 */
-	if (config->messageq_cfg.num_heaps < 2)
-		config->messageq_cfg.num_heaps = 2;
+	/* FIXME: Temporary Fix - Add one more for the SW DMM heap */
+	if (config->messageq_cfg.num_heaps < 3)
+		config->messageq_cfg.num_heaps = 3;
 
 	/* Override the notify default config */
 	config->notify_cfg.maxDrivers = 2;