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Merge "shmbridge: Change the bridge size according to dtsi entry"

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This commit is contained in:
qctecmdr 2021-04-20 16:15:51 -07:00 • committed by Gerrit - the friendly Code Review server
commit ddb3f3dfff
1 changed files with 19 additions and 8 deletions
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31
drivers/firmware/qtee_shmbridge.c
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@ -23,6 +23,7 @@
#include "qtee_shmbridge_internal.h"
#define DEFAULT_BRIDGE_SIZE SZ_4M /*4M*/
#define MIN_BRIDGE_SIZE SZ_4K /*4K*/
#define MAXSHMVMS 4
#define PERM_BITS 3
@ -280,18 +281,19 @@ int32_t qtee_shmbridge_allocate_shm(size_t size, struct qtee_shm *shm)
int32_t ret = 0;
unsigned long va;
if (size > DEFAULT_BRIDGE_SIZE) {
pr_err("requestd size %zu is larger than bridge size %d\n",
size, DEFAULT_BRIDGE_SIZE);
ret = -EINVAL;
goto exit;
}
if (IS_ERR_OR_NULL(shm)) {
pr_err("qtee_shm is NULL\n");
ret = -EINVAL;
goto exit;
}
if (size > default_bridge.size) {
pr_err("requestd size %zu is larger than bridge size %d\n",
size, default_bridge.size);
ret = -EINVAL;
goto exit;
}
size = roundup(size, 1 << default_bridge.min_alloc_order);
va = gen_pool_alloc(default_bridge.genpool, size);
@ -350,6 +352,7 @@ EXPORT_SYMBOL(qtee_shmbridge_inv_shm_buf);
static int qtee_shmbridge_init(struct platform_device *pdev)
{
int ret = 0;
uint32_t custom_bridge_size;
uint32_t *ns_vm_ids;
uint32_t ns_vm_ids_hlos[] = {VMID_HLOS};
uint32_t ns_vm_ids_hyp[] = {};
@ -367,8 +370,16 @@ static int qtee_shmbridge_init(struct platform_device *pdev)
return 0;
}
/* allocate a contiguous page aligned buffer */
default_bridge.size = DEFAULT_BRIDGE_SIZE;
ret = of_property_read_u32((&pdev->dev)->of_node,
"qcom,custom-bridge-size", &custom_bridge_size);
if (ret)
default_bridge.size = DEFAULT_BRIDGE_SIZE;
else
default_bridge.size = custom_bridge_size * MIN_BRIDGE_SIZE;
pr_debug("qtee shmbridge registered default bridge with size %x bytes\n",
default_bridge.size);
default_bridge.vaddr = (void *)__get_free_pages(GFP_KERNEL|__GFP_COMP,
get_order(default_bridge.size));
if (!default_bridge.vaddr)
@ -432,7 +443,7 @@ static int qtee_shmbridge_init(struct platform_device *pdev)
}
pr_debug("qtee shmbridge registered default bridge with size %d bytes\n",
DEFAULT_BRIDGE_SIZE);
default_bridge.size);
return 0;