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Merge "msm: ipa3: add mapping for IPA SMEM to SMMU"

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Linux Build Service Account 2016-07-29 11:24:30 -07:00 • committed by Gerrit - the friendly Code Review server
commit e21b49baaf
1 changed files with 24 additions and 0 deletions
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24
drivers/platform/msm/ipa/ipa_v3/ipa.c
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@ -37,6 +37,7 @@
#include <linux/hashtable.h>
#include <linux/hash.h>
#include <soc/qcom/subsystem_restart.h>
#include <soc/qcom/smem.h>
#define IPA_SUBSYSTEM_NAME "ipa_fws"
#include "ipa_i.h"
#include "../ipa_rm_i.h"
@ -75,6 +76,8 @@
#define IPA3_ACTIVE_CLIENT_LOG_TYPE_RESOURCE 2
#define IPA3_ACTIVE_CLIENT_LOG_TYPE_SPECIAL 3
#define IPA_SMEM_SIZE (8 * 1024)
/* round addresses for closes page per SMMU requirements */
#define IPA_SMMU_ROUND_TO_PAGE(iova, pa, size, iova_p, pa_p, size_p) \
do { \
@ -4824,6 +4827,7 @@ static int ipa_smmu_ap_cb_probe(struct device *dev)
u32 iova_ap_mapping[2];
u32 add_map_size;
const u32 *add_map;
void *smem_addr;
int i;
IPADBG("AP CB probe: sub pdev=%p\n", dev);
@ -4943,6 +4947,26 @@ static int ipa_smmu_ap_cb_probe(struct device *dev)
}
}
/* map SMEM memory for IPA table accesses */
smem_addr = smem_alloc(SMEM_IPA_FILTER_TABLE, IPA_SMEM_SIZE,
SMEM_MODEM, 0);
if (smem_addr) {
phys_addr_t iova = smem_virt_to_phys(smem_addr);
phys_addr_t pa = iova;
unsigned long iova_p;
phys_addr_t pa_p;
u32 size_p;
IPA_SMMU_ROUND_TO_PAGE(iova, pa, IPA_SMEM_SIZE,
iova_p, pa_p, size_p);
IPADBG("mapping 0x%lx to 0x%pa size %d\n",
iova_p, &pa_p, size_p);
ipa3_iommu_map(cb->mapping->domain,
iova_p, pa_p, size_p,
IOMMU_READ | IOMMU_WRITE | IOMMU_DEVICE);
}
smmu_info.present = true;
if (!ipa3_bus_scale_table)