On 29.08.22 09:50, Rasmus Villemoes wrote:
On 29/08/2022 08.23, Stefan Roese wrote:
Only one occurance of WATCHDOG_RESET is left in one assembler file.
This patch changes this occurance to a direct call to watchdog_reset

Well...

and then removes all the ASSEMBLY ifdef'ery in watchdog.h, as it's not
needed any more to clean this mess a bit up.

Signed-off-by: Stefan Roese <s...@denx.de>
---
  arch/powerpc/lib/ticks.S |  5 ++--
  include/watchdog.h       | 50 +++++++++++++---------------------------
  2 files changed, 19 insertions(+), 36 deletions(-)

diff --git a/arch/powerpc/lib/ticks.S b/arch/powerpc/lib/ticks.S
index c487f938fa8d..8647d77cc9ad 100644
--- a/arch/powerpc/lib/ticks.S
+++ b/arch/powerpc/lib/ticks.S
@@ -9,7 +9,6 @@
  #include <ppc_asm.tmpl>
  #include <ppc_defs.h>
  #include <config.h>
-#include <watchdog.h>
/*
   * unsigned long long get_ticks(void);
@@ -42,7 +41,9 @@ wait_ticks:
        addc    r14, r4, r14    /* Compute end time lower */
        addze   r15, r3         /*     and end time upper */
- WATCHDOG_RESET /* Trigger watchdog, if needed */
+#if defined(CONFIG_WATCHDOG) || defined(CONFIG_HW_WATCHDOG)
+       bl      schedule        /* Trigger watchdog, if needed */

...you actually change it to a call to schedule(), which AFAICT doesn't
always exist (at least as a function with external linkage). Or does it
if either one of those conditions are met?

It has passed the CI world build at least, so I assume all is fine
with this change.

Side note: Oh gosh do I hope this can put an end to the CONFIG_WATCHDOG
v CONFIG_HW_WATCHDOG silliness; what is a watchdog if not a piece of HW.

Right. I was not brave enough to remove CONFIG_HW_WATCHDOG with this
patchset yet. But it's definitely on my list, to remove non DM watchdog
support and the HW_WATCHDOG stuff as well. Meaning to get this stuff
re-worked to support DM WDT as well or dropped if it's not maintained
any more.

        #if defined(CONFIG_WATCHDOG)
-               #if defined(__ASSEMBLY__)
-                       /* Don't require the watchdog to be enabled in SPL */
-                       #if defined(CONFIG_SPL_BUILD) &&                \
-                               !defined(CONFIG_SPL_WATCHDOG)
-                               #define WATCHDOG_RESET /*XXX 
DO_NOT_DEL_THIS_COMMENT*/

Yes please. I strongly suspect that comment is some ancient leftover
from some none-complying preprocessor or whatnot.

Frankly, this definitely needs intensive and especially board testing.
So that all permutations of SPL and non-SPL watchdog support will still
be working with this patchset / migration.

Thanks,
Stefan

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