Le 17/10/2019 à 09:36, Andrew Donnellan a écrit :
On 10/9/19 7:16 pm, Christophe Leroy wrote:
+#if defined(CONFIG_VMAP_STACK) && CONFIG_THREAD_SHIFT < PAGE_SHIFT
+#define THREAD_SHIFT PAGE_SHIFT
+#else
#define THREAD_SHIFT CONFIG_THREAD_SHIFT
+#endif
#define THREAD_SIZE (1 << THREAD_SHIFT)
Looking at 64-bit book3s: with 64K pages, this results in a THREAD_SIZE
that's too large for immediate mode arithmetic operations, which is
annoying. Hmm.
Which operation are you thinking about ?
For instance, 'addi' can't be used anymore, but 'addis' can.
Christophe
