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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-22 09:05:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-22 09:05:28 -0800
commit19472481bf58f7c6c939668be885bd300afcb6c6 (patch)
tree2ea5dff1cbdc6f6552ed803f635a5f632b4f8943 /drivers/mmc/host/cqhci-crypto.h
parent32c080c4b5cfadeb1d1d5952840d696d5cda8bb8 (diff)
parenta56f44138a2c57047f1ea94ea121af31c595132b (diff)
Merge tag 'mmc-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson: "MMC core: - Add support for eMMC inline encryption - Add a helper function to parse DT properties for clock phases - Some improvements and cleanups for the mmc_test module MMC host: - android-goldfish: Remove driver - cqhci: Add support for eMMC inline encryption - dw_mmc-zx: Remove driver - meson-gx: Extend support for scatter-gather to allow SD_IO_RW_EXTENDED - mmci: Add support for probing bus voltage level translator - mtk-sd: Address race condition for request timeouts - sdhci_am654: Add Support for the variant on TI's AM64 SoC - sdhci-esdhc-imx: Prevent kernel panic at ->remove() - sdhci-iproc: Add ACPI bindings for the RPi to enable SD and WiFi on RPi4 - sdhci-msm: Add Inline Crypto Engine support - sdhci-msm: Use actual_clock to improve timeout calculations - sdhci-of-aspeed: Add Andrew Jeffery as maintainer - sdhci-of-aspeed: Extend clock support for the AST2600 variant - sdhci-pci-gli: Increase idle period for low power state for GL9763E - sdhci-pci-o2micro: Make tuning for SDR104 HW more robust - sdhci-sirf: Remove driver - sdhci-xenon: Add support for the AP807 variant - sunxi-mmc: Add support for the A100 variant - sunxi-mmc: Ensure host is suspended during system sleep - tmio: Add detection of data timeout errors - tmio/renesas_sdhi: Extend support for retuning - renesas_sdhi_internal_dmac: Add support for the ->pre|post_req() ops" * tag 'mmc-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (86 commits) mmc: sdhci-esdhc-imx: fix kernel panic when remove module mmc: host: Retire MMC_GOLDFISH mmc: cb710: Use new tasklet API mmc: sdhci-pci-o2micro: Bug fix for SDR104 HW tuning failure mmc: mmc_test: use erase_arg for mmc_erase command mmc: wbsd: Use new tasklet API mmc: via-sdmmc: Use new tasklet API mmc: uniphier-sd: Use new tasklet API mmc: tifm_sd: Use new tasklet API mmc: s3cmci: Use new tasklet API mmc: omap: Use new tasklet API mmc: dw_mmc: Use new tasklet API mmc: au1xmmc: Use new tasklet API mmc: atmel-mci: Use new tasklet API mmc: cavium: Replace spin_lock_irqsave with spin_lock in hard IRQ mmc: queue: Remove unused define mmc: core: Drop redundant bouncesz from struct mmc_card mmc: core: Drop redundant member in struct mmc host mmc: core: Use host instead of card argument to mmc_spi_send_csd() mmc: core: Exclude unnecessary header file ...
Diffstat (limited to 'drivers/mmc/host/cqhci-crypto.h')
-rw-r--r--drivers/mmc/host/cqhci-crypto.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/mmc/host/cqhci-crypto.h b/drivers/mmc/host/cqhci-crypto.h
new file mode 100644
index 000000000000..60b58ee0e625
--- /dev/null
+++ b/drivers/mmc/host/cqhci-crypto.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * CQHCI crypto engine (inline encryption) support
+ *
+ * Copyright 2020 Google LLC
+ */
+
+#ifndef LINUX_MMC_CQHCI_CRYPTO_H
+#define LINUX_MMC_CQHCI_CRYPTO_H
+
+#include <linux/mmc/host.h>
+
+#include "cqhci.h"
+
+#ifdef CONFIG_MMC_CRYPTO
+
+int cqhci_crypto_init(struct cqhci_host *host);
+
+/*
+ * Returns the crypto bits that should be set in bits 64-127 of the
+ * task descriptor.
+ */
+static inline u64 cqhci_crypto_prep_task_desc(struct mmc_request *mrq)
+{
+ if (!mrq->crypto_enabled)
+ return 0;
+
+ return CQHCI_CRYPTO_ENABLE_BIT |
+ CQHCI_CRYPTO_KEYSLOT(mrq->crypto_key_slot) |
+ mrq->data_unit_num;
+}
+
+#else /* CONFIG_MMC_CRYPTO */
+
+static inline int cqhci_crypto_init(struct cqhci_host *host)
+{
+ return 0;
+}
+
+static inline u64 cqhci_crypto_prep_task_desc(struct mmc_request *mrq)
+{
+ return 0;
+}
+
+#endif /* !CONFIG_MMC_CRYPTO */
+
+#endif /* LINUX_MMC_CQHCI_CRYPTO_H */