Add in the cop2 and cvmseg state info to the known proc reg
data for Cavium so that it can be tracked, saved, restored.
Signed-off-by: Tomaso Paoletti <tpaoletti@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David Daney <ddaney@xxxxxxxxxxxxxxxxxx>
---
arch/mips/include/asm/processor.h | 69 +++++++++++++++++++++++++++++++++++++
1 files changed, 69 insertions(+), 0 deletions(-)
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 18ee58e..0f926aa 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -118,6 +118,60 @@ union mips_watch_reg_state {
struct mips3264_watch_reg_state mips3264;
};
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+
+struct octeon_cop2_state {
+ /* DMFC2 rt, 0x0201 */
+ unsigned long cop2_crc_iv;
+ /* DMFC2 rt, 0x0202 (Set with DMTC2 rt, 0x1202) */
+ unsigned long cop2_crc_length;
+ /* DMFC2 rt, 0x0200 (set with DMTC2 rt, 0x4200) */
+ unsigned long cop2_crc_poly;
+ /* DMFC2 rt, 0x0402; DMFC2 rt, 0x040A */
+ unsigned long cop2_llm_dat[2];
+ /* DMFC2 rt, 0x0084 */
+ unsigned long cop2_3des_iv;
+ /* DMFC2 rt, 0x0080; DMFC2 rt, 0x0081; DMFC2 rt, 0x0082 */
+ unsigned long cop2_3des_key[3];
+ /* DMFC2 rt, 0x0088 (Set with DMTC2 rt, 0x0098) */
+ unsigned long cop2_3des_result;
+ /* DMFC2 rt, 0x0111 (FIXME: Read Pass1 Errata) */
+ unsigned long cop2_aes_inp0;
+ /* DMFC2 rt, 0x0102; DMFC2 rt, 0x0103 */
+ unsigned long cop2_aes_iv[2];
+ /* DMFC2 rt, 0x0104; DMFC2 rt, 0x0105; DMFC2 rt, 0x0106; DMFC2
+ * rt, 0x0107 */
+ unsigned long cop2_aes_key[4];
+ /* DMFC2 rt, 0x0110 */
+ unsigned long cop2_aes_keylen;
+ /* DMFC2 rt, 0x0100; DMFC2 rt, 0x0101 */
+ unsigned long cop2_aes_result[2];
+ /* DMFC2 rt, 0x0240; DMFC2 rt, 0x0241; DMFC2 rt, 0x0242; DMFC2
+ * rt, 0x0243; DMFC2 rt, 0x0244; DMFC2 rt, 0x0245; DMFC2 rt,
+ * 0x0246; DMFC2 rt, 0x0247; DMFC2 rt, 0x0248; DMFC2 rt,
+ * 0x0249; DMFC2 rt, 0x024A; DMFC2 rt, 0x024B; DMFC2 rt,
+ * 0x024C; DMFC2 rt, 0x024D; DMFC2 rt, 0x024E - Pass2 */
+ unsigned long cop2_hsh_datw[15];
+ /* DMFC2 rt, 0x0250; DMFC2 rt, 0x0251; DMFC2 rt, 0x0252; DMFC2
+ * rt, 0x0253; DMFC2 rt, 0x0254; DMFC2 rt, 0x0255; DMFC2 rt,
+ * 0x0256; DMFC2 rt, 0x0257 - Pass2 */
+ unsigned long cop2_hsh_ivw[8];
+ /* DMFC2 rt, 0x0258; DMFC2 rt, 0x0259 - Pass2 */
+ unsigned long cop2_gfm_mult[2];
+ /* DMFC2 rt, 0x025E - Pass2 */
+ unsigned long cop2_gfm_poly;
+ /* DMFC2 rt, 0x025A; DMFC2 rt, 0x025B - Pass2 */
+ unsigned long cop2_gfm_result[2];
+};
+#define INIT_OCTEON_COP2 {0,}
+
+struct octeon_cvmseg_state {
+ unsigned long cvmseg[CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE]
+ [cpu_dcache_line_size() / sizeof(unsigned long)];
+};
+
+#endif
+
typedef struct {
unsigned long seg;
} mm_segment_t;
@@ -160,6 +214,10 @@ struct thread_struct {
unsigned long trap_no;
unsigned long irix_trampoline; /* Wheee... */
unsigned long irix_oldctx;
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ struct octeon_cop2_state cp2 __attribute__ ((__aligned__(128)));
+ struct octeon_cvmseg_state cvmseg __attribute__ ((__aligned__(128)));
+#endif
struct mips_abi *abi;
};
@@ -171,6 +229,13 @@ struct thread_struct {
#define FPAFF_INIT
#endif /* CONFIG_MIPS_MT_FPAFF */
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+#define OCTEON_INIT \
+ .cp2 = INIT_OCTEON_COP2,
+#else
+#define OCTEON_INIT
+#endif /* CONFIG_CPU_CAVIUM_OCTEON */
+
#define INIT_THREAD { \
/* \
* Saved main processor registers \
@@ -221,6 +286,10 @@ struct thread_struct {
.trap_no = 0, \
.irix_trampoline = 0, \
.irix_oldctx = 0, \
+ /* \
+ * Cavium Octeon specifics (null if not Octeon) \
+ */ \
+ OCTEON_INIT \
}
struct task_struct;
--
1.5.6.5
