In stream mode, the hardware needs to combine the length of the
previous literal to calculate the length of the current literal.
Signed-off-by: Chenghai Huang <huangchenghai2@xxxxxxxxxx>
---
drivers/crypto/hisilicon/zip/zip_main.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index 341c4564e21a..8c64f145173f 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -117,6 +117,9 @@
/* zip comp high performance */
#define HZIP_HIGH_PERF_OFFSET 0x301208
+#define HZIP_LIT_LEN_EN_OFFSET 0x301204
+#define HZIP_LIT_LEN_EN_EN BIT(4)
+
enum {
HZIP_HIGH_COMP_RATE,
HZIP_HIGH_COMP_PERF,
@@ -454,6 +457,20 @@ bool hisi_zip_alg_support(struct hisi_qm *qm, u32 alg)
return false;
}
+static void hisi_zip_literal_set(struct hisi_qm *qm)
+{
+ u32 val;
+
+ if (qm->ver < QM_HW_V3)
+ return;
+
+ val = readl_relaxed(qm->io_base + HZIP_LIT_LEN_EN_OFFSET);
+ val &= ~HZIP_LIT_LEN_EN_EN;
+
+ /* enable literal length in stream mode compression */
+ writel(val, qm->io_base + HZIP_LIT_LEN_EN_OFFSET);
+}
+
static void hisi_zip_set_high_perf(struct hisi_qm *qm)
{
u32 val;
@@ -617,6 +634,7 @@ static int hisi_zip_set_user_domain_and_cache(struct hisi_qm *qm)
FIELD_PREP(CQC_CACHE_WB_THRD, 1), base + QM_CACHE_CTL);
hisi_zip_set_high_perf(qm);
+ hisi_zip_literal_set(qm);
hisi_zip_enable_clock_gate(qm);
ret = hisi_dae_set_user_domain(qm);
--
2.33.0
