msm: Enable bus scaling for h/w crypto driver.
Adding bus bandwidth options for the crypto driver improves
the performance. The driver requests for bus bandwidth when
loaded.
Change-Id: I8e68de8e3c1778faeaf3b3d9776f98acf333ba84
Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8930.c b/arch/arm/mach-msm/board-8930.c
index 8df37f7..6c4cbd3 100644
--- a/arch/arm/mach-msm/board-8930.c
+++ b/arch/arm/mach-msm/board-8930.c
@@ -1018,6 +1018,55 @@
#define QCE_SHARE_CE_RESOURCE 1
#define QCE_CE_SHARED 0
+/* Begin Bus scaling definitions */
+static struct msm_bus_vectors crypto_hw_init_vectors[] = {
+ {
+ .src = MSM_BUS_MASTER_ADM_PORT0,
+ .dst = MSM_BUS_SLAVE_EBI_CH0,
+ .ab = 0,
+ .ib = 0,
+ },
+ {
+ .src = MSM_BUS_MASTER_ADM_PORT1,
+ .dst = MSM_BUS_SLAVE_GSBI1_UART,
+ .ab = 0,
+ .ib = 0,
+ },
+};
+
+static struct msm_bus_vectors crypto_hw_active_vectors[] = {
+ {
+ .src = MSM_BUS_MASTER_ADM_PORT0,
+ .dst = MSM_BUS_SLAVE_EBI_CH0,
+ .ab = 70000000UL,
+ .ib = 70000000UL,
+ },
+ {
+ .src = MSM_BUS_MASTER_ADM_PORT1,
+ .dst = MSM_BUS_SLAVE_GSBI1_UART,
+ .ab = 2480000000UL,
+ .ib = 2480000000UL,
+ },
+};
+
+static struct msm_bus_paths crypto_hw_bus_scale_usecases[] = {
+ {
+ ARRAY_SIZE(crypto_hw_init_vectors),
+ crypto_hw_init_vectors,
+ },
+ {
+ ARRAY_SIZE(crypto_hw_active_vectors),
+ crypto_hw_active_vectors,
+ },
+};
+
+static struct msm_bus_scale_pdata crypto_hw_bus_scale_pdata = {
+ crypto_hw_bus_scale_usecases,
+ ARRAY_SIZE(crypto_hw_bus_scale_usecases),
+ .name = "cryptohw",
+};
+/* End Bus Scaling Definitions*/
+
static struct resource qcrypto_resources[] = {
[0] = {
.start = QCE_0_BASE,
@@ -1080,6 +1129,7 @@
.shared_ce_resource = QCE_SHARE_CE_RESOURCE,
.hw_key_support = QCE_HW_KEY_SUPPORT,
.sha_hmac = QCE_SHA_HMAC_SUPPORT,
+ .bus_scale_table = &crypto_hw_bus_scale_pdata,
};
static struct platform_device qcrypto_device = {
@@ -1102,6 +1152,7 @@
.shared_ce_resource = QCE_SHARE_CE_RESOURCE,
.hw_key_support = QCE_HW_KEY_SUPPORT,
.sha_hmac = QCE_SHA_HMAC_SUPPORT,
+ .bus_scale_table = &crypto_hw_bus_scale_pdata,
};
static struct platform_device qcedev_device = {