diff options
| author |   Tom Lendacky <thomas.lendacky@amd.com> | 2014-06-05 10:17:57 -0500 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2014-06-20 21:26:14 +0800 |
| commit | c4f4b325e9c885b11901174158d5e1ff4b19a189 (patch) | |
| tree | 5dd00e9be91a839fc563f8d035f792833afbbbae /drivers/crypto/ccp/ccp-dev.c | |
| parent | crypto: ccp - CCP device bindings documentation (diff) | |
| download | linux-dev-c4f4b325e9c885b11901174158d5e1ff4b19a189.tar.xz linux-dev-c4f4b325e9c885b11901174158d5e1ff4b19a189.zip | |
crypto: ccp - Add platform device support for arm64
Add support for the CCP on arm64 as a platform device.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccp/ccp-dev.c')
| -rw-r--r-- | drivers/crypto/ccp/ccp-dev.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/ccp-dev.c b/drivers/crypto/ccp/ccp-dev.c index 2c7816149b01..fa1ab10f960f 100644 --- a/drivers/crypto/ccp/ccp-dev.c +++ b/drivers/crypto/ccp/ccp-dev.c @@ -20,7 +20,9 @@ #include <linux/delay.h> #include <linux/hw_random.h> #include <linux/cpu.h> +#ifdef CONFIG_X86 #include <asm/cpu_device_id.h> +#endif #include <linux/ccp.h> #include "ccp-dev.h" @@ -360,6 +362,12 @@ int ccp_init(struct ccp_device *ccp) /* Build queue interrupt mask (two interrupts per queue) */ qim |= cmd_q->int_ok | cmd_q->int_err; +#ifdef CONFIG_ARM64 + /* For arm64 set the recommended queue cache settings */ + iowrite32(CACHE_WB_NO_ALLOC, ccp->io_regs + CMD_Q_CACHE_BASE + + (CMD_Q_CACHE_INC * i)); +#endif + dev_dbg(dev, "queue #%u available\n", i); } if (ccp->cmd_q_count == 0) { @@ -558,12 +566,15 @@ bool ccp_queues_suspended(struct ccp_device *ccp) } #endif +#ifdef CONFIG_X86 static const struct x86_cpu_id ccp_support[] = { { X86_VENDOR_AMD, 22, }, }; +#endif static int __init ccp_mod_init(void) { +#ifdef CONFIG_X86 struct cpuinfo_x86 *cpuinfo = &boot_cpu_data; int ret; @@ -589,12 +600,30 @@ static int __init ccp_mod_init(void) break; } +#endif + +#ifdef CONFIG_ARM64 + int ret; + + ret = ccp_platform_init(); + if (ret) + return ret; + + /* Don't leave the driver loaded if init failed */ + if (!ccp_get_device()) { + ccp_platform_exit(); + return -ENODEV; + } + + return 0; +#endif return -ENODEV; } static void __exit ccp_mod_exit(void) { +#ifdef CONFIG_X86 struct cpuinfo_x86 *cpuinfo = &boot_cpu_data; switch (cpuinfo->x86) { @@ -602,6 +631,11 @@ static void __exit ccp_mod_exit(void) ccp_pci_exit(); break; } +#endif + +#ifdef CONFIG_ARM64 + ccp_platform_exit(); +#endif } module_init(ccp_mod_init); |