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| author |   Weili Qian <qianweili@huawei.com> | 2021-05-15 18:44:40 +0800 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2021-05-23 08:52:41 +0800 |
| commit | b7da13d092a4919823c2b260ca7ea6ef1690b80b (patch) | |
| tree | 62e4f0475a2fff0e0cf861f2b734e0ee8ccbb514 /drivers/crypto/hisilicon/zip/zip_main.c | |
| parent | crypto: hisilicon/qm - adjust order of device error configuration (diff) | |
| download | wireguard-linux-b7da13d092a4919823c2b260ca7ea6ef1690b80b.tar.xz wireguard-linux-b7da13d092a4919823c2b260ca7ea6ef1690b80b.zip | |
crypto: hisilicon/qm - enable to close master ooo when NFE occurs
Kunpeng930 could be able to close master ooo when NFE occurs, which will
disable memory accessing from device and execute tasks. This ensures that
errors do not spread.
This patch enables the hardware to close master ooo when an error occurs
by writing hardware registers, and ensures that the driver will not drain
qp because the hardware will empty the tasks automatically.
Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/hisilicon/zip/zip_main.c')
| -rw-r--r-- | drivers/crypto/hisilicon/zip/zip_main.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c index 8e3a52218774..3e23f2a1cf5a 100644 --- a/drivers/crypto/hisilicon/zip/zip_main.c +++ b/drivers/crypto/hisilicon/zip/zip_main.c @@ -68,6 +68,7 @@ #define HZIP_CORE_INT_RAS_CE_ENABLE 0x1 #define HZIP_CORE_INT_RAS_NFE_ENB 0x301164 #define HZIP_CORE_INT_RAS_FE_ENB 0x301168 +#define HZIP_OOO_SHUTDOWN_SEL 0x30120C #define HZIP_CORE_INT_RAS_NFE_ENABLE 0x1FFE #define HZIP_SRAM_ECC_ERR_NUM_SHIFT 16 #define HZIP_SRAM_ECC_ERR_ADDR_SHIFT 24 @@ -312,10 +313,27 @@ static int hisi_zip_set_user_domain_and_cache(struct hisi_qm *qm) return 0; } -static void hisi_zip_hw_error_enable(struct hisi_qm *qm) +static void hisi_zip_master_ooo_ctrl(struct hisi_qm *qm, bool enable) { - u32 val; + u32 val1, val2; + + val1 = readl(qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); + if (enable) { + val1 |= HZIP_AXI_SHUTDOWN_ENABLE; + val2 = HZIP_CORE_INT_RAS_NFE_ENABLE; + } else { + val1 &= ~HZIP_AXI_SHUTDOWN_ENABLE; + val2 = 0x0; + } + + if (qm->ver > QM_HW_V2) + writel(val2, qm->io_base + HZIP_OOO_SHUTDOWN_SEL); + + writel(val1, qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); +} +static void hisi_zip_hw_error_enable(struct hisi_qm *qm) +{ if (qm->ver == QM_HW_V1) { writel(HZIP_CORE_INT_MASK_ALL, qm->io_base + HZIP_CORE_INT_MASK_REG); @@ -333,10 +351,8 @@ static void hisi_zip_hw_error_enable(struct hisi_qm *qm) writel(HZIP_CORE_INT_RAS_NFE_ENABLE, qm->io_base + HZIP_CORE_INT_RAS_NFE_ENB); - /* enable ZIP block master OOO when m-bit error occur */ - val = readl(qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); - val = val | HZIP_AXI_SHUTDOWN_ENABLE; - writel(val, qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); + /* enable ZIP block master OOO when nfe occurs on Kunpeng930 */ + hisi_zip_master_ooo_ctrl(qm, true); /* enable ZIP hw error interrupts */ writel(0, qm->io_base + HZIP_CORE_INT_MASK_REG); @@ -344,15 +360,11 @@ static void hisi_zip_hw_error_enable(struct hisi_qm *qm) static void hisi_zip_hw_error_disable(struct hisi_qm *qm) { - u32 val; - /* disable ZIP hw error interrupts */ writel(HZIP_CORE_INT_MASK_ALL, qm->io_base + HZIP_CORE_INT_MASK_REG); - /* disable ZIP block master OOO when m-bit error occur */ - val = readl(qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); - val = val & ~HZIP_AXI_SHUTDOWN_ENABLE; - writel(val, qm->io_base + HZIP_SOFT_CTRL_ZIP_CONTROL); + /* disable ZIP block master OOO when nfe occurs on Kunpeng930 */ + hisi_zip_master_ooo_ctrl(qm, false); } static inline struct hisi_qm *file_to_qm(struct ctrl_debug_file *file) |