[PATCH v2 04/20] drivers: crypto: meson: add MMIO helpers
Alexey Romanov
avromanov at salutedevices.com
Tue Jan 23 08:58:15 PST 2024
Add MMIO access helpers: meson_dma_start() and meson_dma_ready().
Signed-off-by: Alexey Romanov <avromanov at salutedevices.com>
---
drivers/crypto/amlogic/amlogic-gxl-cipher.c | 2 +-
drivers/crypto/amlogic/amlogic-gxl-core.c | 24 ++++++++++++++++-----
drivers/crypto/amlogic/amlogic-gxl.h | 2 ++
3 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
index 7eff3ae7356f..1fe916b0a138 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
@@ -225,7 +225,7 @@ static int meson_cipher(struct skcipher_request *areq)
reinit_completion(&mc->chanlist[flow].complete);
mc->chanlist[flow].status = 0;
- writel(mc->chanlist[flow].t_phy | 2, mc->base + ((mc->pdata->descs_reg + flow) << 2));
+ meson_dma_start(mc, flow);
wait_for_completion_interruptible_timeout(&mc->chanlist[flow].complete,
msecs_to_jiffies(500));
if (mc->chanlist[flow].status == 0) {
diff --git a/drivers/crypto/amlogic/amlogic-gxl-core.c b/drivers/crypto/amlogic/amlogic-gxl-core.c
index 2be381e157c4..92d101c7d302 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-core.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-core.c
@@ -23,18 +23,32 @@
#include "amlogic-gxl.h"
+void meson_dma_start(struct meson_dev *mc, int flow)
+{
+ u32 offset = (mc->pdata->descs_reg + flow) << 2;
+
+ writel(mc->chanlist[flow].t_phy | 2, mc->base + offset);
+}
+
+static bool meson_dma_ready(struct meson_dev *mc, int flow)
+{
+ u32 offset = (mc->pdata->status_reg + flow) << 2;
+ u32 data = readl(mc->base + offset);
+
+ if (data)
+ writel_relaxed(0xF, mc->base + offset);
+
+ return data;
+}
+
static irqreturn_t meson_irq_handler(int irq, void *data)
{
struct meson_dev *mc = (struct meson_dev *)data;
int flow;
- u32 p;
for (flow = 0; flow < mc->flow_cnt; flow++) {
if (mc->chanlist[flow].irq == irq) {
- p = readl(mc->base + ((mc->pdata->status_reg + flow) << 2));
- if (p) {
- writel_relaxed(0xF, mc->base +
- ((mc->pdata->status_reg + flow) << 2));
+ if (meson_dma_ready(mc, flow)) {
mc->chanlist[flow].status = 1;
complete(&mc->chanlist[flow].complete);
return IRQ_HANDLED;
diff --git a/drivers/crypto/amlogic/amlogic-gxl.h b/drivers/crypto/amlogic/amlogic-gxl.h
index 9ad75da214ff..8670f7ebcdda 100644
--- a/drivers/crypto/amlogic/amlogic-gxl.h
+++ b/drivers/crypto/amlogic/amlogic-gxl.h
@@ -161,6 +161,8 @@ struct meson_alg_template {
#endif
};
+void meson_dma_start(struct meson_dev *mc, int flow);
+
int meson_enqueue(struct crypto_async_request *areq, u32 type);
int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
--
2.34.1
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