Message ID | 1576414789.16318.4076.camel@hbabu-laptop (mailing list archive) |
---|---|
State | Superseded |
Headers | show |
Series | crypto/nx: Enable GZIP engine and provide userpace API | expand |
Context | Check | Description |
---|---|---|
snowpatch_ozlabs/apply_patch | success | Successfully applied on branch powerpc/merge (69b349a06f979f2c93a5d6902e57e3e19dcd0475) |
snowpatch_ozlabs/checkpatch | warning | total: 0 errors, 1 warnings, 1 checks, 25 lines checked |
diff --git a/arch/powerpc/include/asm/vas.h b/arch/powerpc/include/asm/vas.h index f93e6b0..6d9e692 100644 --- a/arch/powerpc/include/asm/vas.h +++ b/arch/powerpc/include/asm/vas.h @@ -163,4 +163,9 @@ struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop, */ int vas_paste_crb(struct vas_window *win, int offset, bool re); +/* + * Return the power bus paste address associated with @win so the caller + * can map that address into their address space. + */ +extern u64 vas_win_paste_addr(struct vas_window *win); #endif /* __ASM_POWERPC_VAS_H */ diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c index 5322d1c..b51eac5 100644 --- a/arch/powerpc/platforms/powernv/vas-window.c +++ b/arch/powerpc/platforms/powernv/vas-window.c @@ -42,6 +42,16 @@ static void compute_paste_address(struct vas_window *window, u64 *addr, int *len pr_debug("Txwin #%d: Paste addr 0x%llx\n", winid, *addr); } +u64 vas_win_paste_addr(struct vas_window *win) +{ + u64 addr; + + compute_paste_address(win, &addr, NULL); + + return addr; +} +EXPORT_SYMBOL(vas_win_paste_addr); + static inline void get_hvwc_mmio_bar(struct vas_window *window, u64 *start, int *len) {