| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20231202091722.1974582-6-songzhiqi1@huawei.com>
Date: Sat, 2 Dec 2023 17:17:22 +0800
From: Zhiqi Song <songzhiqi1@...wei.com>
To: <herbert@...dor.apana.org.au>, <davem@...emloft.net>
CC: <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<wangzhou1@...ilicon.com>, <fanghao11@...wei.com>,
<liulongfang@...wei.com>, <qianweili@...wei.com>,
<shenyang39@...wei.com>
Subject: [PATCH 5/5] crypto: hisilicon/zip - save capability registers in probe process
Pre-store the valid value of the zip alg support related capability
register in hisi_zip_qm_init(), which will be called by hisi_zip_probe().
It can reduce the number of capability register queries and avoid
obtaining incorrect values in abnormal scenarios, such as reset failed
and the memory space disabled.
Fixes: db700974b69d ("crypto: hisilicon/zip - support zip capability")
Signed-off-by: Zhiqi Song <songzhiqi1@...wei.com>
---
drivers/crypto/hisilicon/zip/zip_main.c | 73 ++++++++++++++++++++-----
1 file changed, 60 insertions(+), 13 deletions(-)
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index 2934de25efa4..479ba8a1d6b5 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -249,6 +249,26 @@ static struct hisi_qm_cap_info zip_basic_cap_info[] = {
{ZIP_CAP_MAX, 0x317c, 0, GENMASK(0, 0), 0x0, 0x0, 0x0}
};
+enum zip_pre_store_cap_idx {
+ ZIP_CORE_NUM_CAP_IDX = 0x0,
+ ZIP_CLUSTER_COMP_NUM_CAP_IDX,
+ ZIP_CLUSTER_DECOMP_NUM_CAP_IDX,
+ ZIP_DECOMP_ENABLE_BITMAP_IDX,
+ ZIP_COMP_ENABLE_BITMAP_IDX,
+ ZIP_DRV_ALG_BITMAP_IDX,
+ ZIP_DEV_ALG_BITMAP_IDX,
+};
+
+static const u32 zip_pre_store_caps[] = {
+ ZIP_CORE_NUM_CAP,
+ ZIP_CLUSTER_COMP_NUM_CAP,
+ ZIP_CLUSTER_DECOMP_NUM_CAP,
+ ZIP_DECOMP_ENABLE_BITMAP,
+ ZIP_COMP_ENABLE_BITMAP,
+ ZIP_DRV_ALG_BITMAP,
+ ZIP_DEV_ALG_BITMAP,
+};
+
enum {
HZIP_COMP_CORE0,
HZIP_COMP_CORE1,
@@ -443,7 +463,7 @@ bool hisi_zip_alg_support(struct hisi_qm *qm, u32 alg)
{
u32 cap_val;
- cap_val = hisi_qm_get_hw_info(qm, zip_basic_cap_info, ZIP_DRV_ALG_BITMAP, qm->cap_ver);
+ cap_val = qm->cap_tables.dev_cap_table[ZIP_DRV_ALG_BITMAP_IDX].cap_val;
if ((alg & cap_val) == alg)
return true;
@@ -568,10 +588,8 @@ static int hisi_zip_set_user_domain_and_cache(struct hisi_qm *qm)
}
/* let's open all compression/decompression cores */
- dcomp_bm = hisi_qm_get_hw_info(qm, zip_basic_cap_info,
- ZIP_DECOMP_ENABLE_BITMAP, qm->cap_ver);
- comp_bm = hisi_qm_get_hw_info(qm, zip_basic_cap_info,
- ZIP_COMP_ENABLE_BITMAP, qm->cap_ver);
+ dcomp_bm = qm->cap_tables.dev_cap_table[ZIP_DECOMP_ENABLE_BITMAP_IDX].cap_val;
+ comp_bm = qm->cap_tables.dev_cap_table[ZIP_COMP_ENABLE_BITMAP_IDX].cap_val;
writel(HZIP_DECOMP_CHECK_ENABLE | dcomp_bm | comp_bm, base + HZIP_CLOCK_GATE_CTRL);
/* enable sqc,cqc writeback */
@@ -798,9 +816,8 @@ static int hisi_zip_core_debug_init(struct hisi_qm *qm)
char buf[HZIP_BUF_SIZE];
int i;
- zip_core_num = hisi_qm_get_hw_info(qm, zip_basic_cap_info, ZIP_CORE_NUM_CAP, qm->cap_ver);
- zip_comp_core_num = hisi_qm_get_hw_info(qm, zip_basic_cap_info, ZIP_CLUSTER_COMP_NUM_CAP,
- qm->cap_ver);
+ zip_core_num = qm->cap_tables.dev_cap_table[ZIP_CORE_NUM_CAP_IDX].cap_val;
+ zip_comp_core_num = qm->cap_tables.dev_cap_table[ZIP_CLUSTER_COMP_NUM_CAP_IDX].cap_val;
for (i = 0; i < zip_core_num; i++) {
if (i < zip_comp_core_num)
@@ -942,7 +959,7 @@ static int hisi_zip_show_last_regs_init(struct hisi_qm *qm)
u32 zip_core_num;
int i, j, idx;
- zip_core_num = hisi_qm_get_hw_info(qm, zip_basic_cap_info, ZIP_CORE_NUM_CAP, qm->cap_ver);
+ zip_core_num = qm->cap_tables.dev_cap_table[ZIP_CORE_NUM_CAP_IDX].cap_val;
debug->last_words = kcalloc(core_dfx_regs_num * zip_core_num + com_dfx_regs_num,
sizeof(unsigned int), GFP_KERNEL);
@@ -998,9 +1015,9 @@ static void hisi_zip_show_last_dfx_regs(struct hisi_qm *qm)
hzip_com_dfx_regs[i].name, debug->last_words[i], val);
}
- zip_core_num = hisi_qm_get_hw_info(qm, zip_basic_cap_info, ZIP_CORE_NUM_CAP, qm->cap_ver);
- zip_comp_core_num = hisi_qm_get_hw_info(qm, zip_basic_cap_info, ZIP_CLUSTER_COMP_NUM_CAP,
- qm->cap_ver);
+ zip_core_num = qm->cap_tables.dev_cap_table[ZIP_CORE_NUM_CAP_IDX].cap_val;
+ zip_comp_core_num = qm->cap_tables.dev_cap_table[ZIP_CLUSTER_COMP_NUM_CAP_IDX].cap_val;
+
for (i = 0; i < zip_core_num; i++) {
if (i < zip_comp_core_num)
scnprintf(buf, sizeof(buf), "Comp_core-%d", i);
@@ -1156,6 +1173,28 @@ static int hisi_zip_pf_probe_init(struct hisi_zip *hisi_zip)
return ret;
}
+static int zip_pre_store_cap_reg(struct hisi_qm *qm)
+{
+ struct hisi_qm_cap_record *zip_cap;
+ struct pci_dev *pdev = qm->pdev;
+ size_t i, size;
+
+ size = ARRAY_SIZE(zip_pre_store_caps);
+ zip_cap = devm_kzalloc(&pdev->dev, sizeof(*zip_cap) * size, GFP_KERNEL);
+ if (!zip_cap)
+ return -ENOMEM;
+
+ for (i = 0; i < size; i++) {
+ zip_cap[i].type = zip_pre_store_caps[i];
+ zip_cap[i].cap_val = hisi_qm_get_hw_info(qm, zip_basic_cap_info,
+ zip_pre_store_caps[i], qm->cap_ver);
+ }
+
+ qm->cap_tables.dev_cap_table = zip_cap;
+
+ return 0;
+}
+
static int hisi_zip_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)
{
u64 alg_msk;
@@ -1194,7 +1233,15 @@ static int hisi_zip_qm_init(struct hisi_qm *qm, struct pci_dev *pdev)
return ret;
}
- alg_msk = hisi_qm_get_hw_info(qm, zip_basic_cap_info, ZIP_DEV_ALG_BITMAP, qm->cap_ver);
+ /* Fetch and save the value of capability registers */
+ ret = zip_pre_store_cap_reg(qm);
+ if (ret) {
+ pci_err(qm->pdev, "Failed to pre-store capability registers!\n");
+ hisi_qm_uninit(qm);
+ return ret;
+ }
+
+ alg_msk = qm->cap_tables.dev_cap_table[ZIP_DEV_ALG_BITMAP_IDX].cap_val;
ret = hisi_qm_set_algs(qm, alg_msk, zip_dev_algs, ARRAY_SIZE(zip_dev_algs));
if (ret) {
pci_err(qm->pdev, "Failed to set zip algs!\n");
--
2.30.0
Powered by blists - more mailing lists