From patchwork Tue Nov 13 02:46:52 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [04/12] pseries: Return the token when we register an RTAS call From: David Gibson X-Patchwork-Id: 198526 Message-Id: <1352774820-22804-5-git-send-email-david@gibson.dropbear.id.au> To: agraf@suse.de Cc: Michael Ellerman , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Date: Tue, 13 Nov 2012 13:46:52 +1100 From: Michael Ellerman The kernel will soon be able to service some RTAS calls. However the choice of tokens will still be up to userspace. To support this have spapr_rtas_register() return the token that is allocated for an RTAS call, that allows the calling code to tell the kernel what the token value is. Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt Signed-off-by: David Gibson --- hw/spapr.h | 2 +- hw/spapr_rtas.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/spapr.h b/hw/spapr.h index efe7f57..971a50a 100644 --- a/hw/spapr.h +++ b/hw/spapr.h @@ -320,7 +320,7 @@ static inline void rtas_st(target_ulong phys, int n, uint32_t val) typedef void (*spapr_rtas_fn)(sPAPREnvironment *spapr, uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets); -void spapr_rtas_register(const char *name, spapr_rtas_fn fn); +int spapr_rtas_register(const char *name, spapr_rtas_fn fn); target_ulong spapr_rtas_call(sPAPREnvironment *spapr, uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets); diff --git a/hw/spapr_rtas.c b/hw/spapr_rtas.c index 6d5c48a..45294e8 100644 --- a/hw/spapr_rtas.c +++ b/hw/spapr_rtas.c @@ -242,7 +242,7 @@ target_ulong spapr_rtas_call(sPAPREnvironment *spapr, return H_PARAMETER; } -void spapr_rtas_register(const char *name, spapr_rtas_fn fn) +int spapr_rtas_register(const char *name, spapr_rtas_fn fn) { int i; @@ -258,7 +258,7 @@ void spapr_rtas_register(const char *name, spapr_rtas_fn fn) rtas_next->name = name; rtas_next->fn = fn; - rtas_next++; + return (rtas_next++ - rtas_table) + TOKEN_BASE; } int spapr_rtas_device_tree_setup(void *fdt, hwaddr rtas_addr,