summaryrefslogtreecommitdiffstats
path: root/drivers/char/hw_random/n2rng.h
diff options
context:
space:
mode:
authorLinus Torvalds2017-02-23 18:54:19 +0100
committerLinus Torvalds2017-02-23 18:54:19 +0100
commit5bcbe22ca47da04cda3a858cef67f55b550c1d13 (patch)
tree49bd61e32eb2d652085a49182436322a3e0e9840 /drivers/char/hw_random/n2rng.h
parentMerge tag 'rpmsg-v4.11' of git://github.com/andersson/remoteproc (diff)
parentcrypto: xts - Add ECB dependency (diff)
downloadkernel-qcow2-linux-5bcbe22ca47da04cda3a858cef67f55b550c1d13.tar.gz
kernel-qcow2-linux-5bcbe22ca47da04cda3a858cef67f55b550c1d13.tar.xz
kernel-qcow2-linux-5bcbe22ca47da04cda3a858cef67f55b550c1d13.zip
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu: "API: - Try to catch hash output overrun in testmgr - Introduce walksize attribute for batched walking - Make crypto_xor() and crypto_inc() alignment agnostic Algorithms: - Add time-invariant AES algorithm - Add standalone CBCMAC algorithm Drivers: - Add NEON acclerated chacha20 on ARM/ARM64 - Expose AES-CTR as synchronous skcipher on ARM64 - Add scalar AES implementation on ARM64 - Improve scalar AES implementation on ARM - Improve NEON AES implementation on ARM/ARM64 - Merge CRC32 and PMULL instruction based drivers on ARM64 - Add NEON acclerated CBCMAC/CMAC/XCBC AES on ARM64 - Add IPsec AUTHENC implementation in atmel - Add Support for Octeon-tx CPT Engine - Add Broadcom SPU driver - Add MediaTek driver" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (142 commits) crypto: xts - Add ECB dependency crypto: cavium - switch to pci_alloc_irq_vectors crypto: cavium - switch to pci_alloc_irq_vectors crypto: cavium - remove dead MSI-X related define crypto: brcm - Avoid double free in ahash_finup() crypto: cavium - fix Kconfig dependencies crypto: cavium - cpt_bind_vq_to_grp could return an error code crypto: doc - fix typo hwrng: omap - update Kconfig help description crypto: ccm - drop unnecessary minimum 32-bit alignment crypto: ccm - honour alignmask of subordinate MAC cipher crypto: caam - fix state buffer DMA (un)mapping crypto: caam - abstract ahash request double buffering crypto: caam - fix error path for ctx_dma mapping failure crypto: caam - fix DMA API leaks for multiple setkey() calls crypto: caam - don't dma_map key for hash algorithms crypto: caam - use dma_map_sg() return code crypto: caam - replace sg_count() with sg_nents_for_len() crypto: caam - check sg_count() return value crypto: caam - fix HW S/G in ablkcipher_giv_edesc_alloc() ..
Diffstat (limited to 'drivers/char/hw_random/n2rng.h')
-rw-r--r--drivers/char/hw_random/n2rng.h51
1 files changed, 42 insertions, 9 deletions
diff --git a/drivers/char/hw_random/n2rng.h b/drivers/char/hw_random/n2rng.h
index f244ac89087f..6bad6cc634e8 100644
--- a/drivers/char/hw_random/n2rng.h
+++ b/drivers/char/hw_random/n2rng.h
@@ -6,18 +6,34 @@
#ifndef _N2RNG_H
#define _N2RNG_H
-#define RNG_CTL_WAIT 0x0000000001fffe00ULL /* Minimum wait time */
-#define RNG_CTL_WAIT_SHIFT 9
-#define RNG_CTL_BYPASS 0x0000000000000100ULL /* VCO voltage source */
-#define RNG_CTL_VCO 0x00000000000000c0ULL /* VCO rate control */
-#define RNG_CTL_VCO_SHIFT 6
-#define RNG_CTL_ASEL 0x0000000000000030ULL /* Analog MUX select */
-#define RNG_CTL_ASEL_SHIFT 4
+/* ver1 devices - n2-rng, vf-rng, kt-rng */
+#define RNG_v1_CTL_WAIT 0x0000000001fffe00ULL /* Minimum wait time */
+#define RNG_v1_CTL_WAIT_SHIFT 9
+#define RNG_v1_CTL_BYPASS 0x0000000000000100ULL /* VCO voltage source */
+#define RNG_v1_CTL_VCO 0x00000000000000c0ULL /* VCO rate control */
+#define RNG_v1_CTL_VCO_SHIFT 6
+#define RNG_v1_CTL_ASEL 0x0000000000000030ULL /* Analog MUX select */
+#define RNG_v1_CTL_ASEL_SHIFT 4
+#define RNG_v1_CTL_ASEL_NOOUT 2
+
+/* these are the same in v2 as in v1 */
#define RNG_CTL_LFSR 0x0000000000000008ULL /* Use LFSR or plain shift */
#define RNG_CTL_ES3 0x0000000000000004ULL /* Enable entropy source 3 */
#define RNG_CTL_ES2 0x0000000000000002ULL /* Enable entropy source 2 */
#define RNG_CTL_ES1 0x0000000000000001ULL /* Enable entropy source 1 */
+/* ver2 devices - m4-rng, m7-rng */
+#define RNG_v2_CTL_WAIT 0x0000000007fff800ULL /* Minimum wait time */
+#define RNG_v2_CTL_WAIT_SHIFT 12
+#define RNG_v2_CTL_BYPASS 0x0000000000000400ULL /* VCO voltage source */
+#define RNG_v2_CTL_VCO 0x0000000000000300ULL /* VCO rate control */
+#define RNG_v2_CTL_VCO_SHIFT 9
+#define RNG_v2_CTL_PERF 0x0000000000000180ULL /* Perf */
+#define RNG_v2_CTL_ASEL 0x0000000000000070ULL /* Analog MUX select */
+#define RNG_v2_CTL_ASEL_SHIFT 4
+#define RNG_v2_CTL_ASEL_NOOUT 7
+
+
#define HV_FAST_RNG_GET_DIAG_CTL 0x130
#define HV_FAST_RNG_CTL_READ 0x131
#define HV_FAST_RNG_CTL_WRITE 0x132
@@ -60,6 +76,20 @@ extern unsigned long sun4v_rng_data_read_diag_v2(unsigned long data_ra,
extern unsigned long sun4v_rng_data_read(unsigned long data_ra,
unsigned long *tick_delta);
+enum n2rng_compat_id {
+ N2_n2_rng,
+ N2_vf_rng,
+ N2_kt_rng,
+ N2_m4_rng,
+ N2_m7_rng,
+};
+
+struct n2rng_template {
+ enum n2rng_compat_id id;
+ int multi_capable;
+ int chip_version;
+};
+
struct n2rng_unit {
u64 control[HV_RNG_NUM_CONTROL];
};
@@ -74,6 +104,7 @@ struct n2rng {
#define N2RNG_FLAG_SHUTDOWN 0x00000010 /* Driver unregistering */
#define N2RNG_FLAG_BUFFER_VALID 0x00000020 /* u32 buffer holds valid data */
+ struct n2rng_template *data;
int num_units;
struct n2rng_unit *units;
@@ -97,8 +128,10 @@ struct n2rng {
u64 scratch_control[HV_RNG_NUM_CONTROL];
-#define SELFTEST_TICKS 38859
-#define SELFTEST_VAL ((u64)0xB8820C7BD387E32C)
+#define RNG_v1_SELFTEST_TICKS 38859
+#define RNG_v1_SELFTEST_VAL ((u64)0xB8820C7BD387E32C)
+#define RNG_v2_SELFTEST_TICKS 64
+#define RNG_v2_SELFTEST_VAL ((u64)0xffffffffffffffff)
#define SELFTEST_POLY ((u64)0x231DCEE91262B8A3)
#define SELFTEST_MATCH_GOAL 6
#define SELFTEST_LOOPS_MAX 40000