This function used to be for adding a list of requests to be actioned on relocation. Revert it back to this purpose, to avoid problems with boards which need control of their MTRRs (i.e. those which don't use FSP).
The mtrr_set_next_var() function is available when the next free variable-MTRR must be set, so this can be used instead.
Signed-off-by: Simon Glass sjg@chromium.org Fixes: 3a5823978ff ("x86: mtrr: Skip MSRs that were already programmed..") Fixes: 44aed2f0322 ("x86: mtrr: Do not clear the unused ones..") ---
(no changes since v1)
arch/x86/cpu/mtrr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/x86/cpu/mtrr.c b/arch/x86/cpu/mtrr.c index e69dfb552b16..c174dd9b3ad2 100644 --- a/arch/x86/cpu/mtrr.c +++ b/arch/x86/cpu/mtrr.c @@ -156,8 +156,12 @@ int mtrr_commit(bool do_caches) debug("open done\n"); qsort(req, gd->arch.mtrr_req_count, sizeof(*req), h_comp_mtrr); for (i = 0; i < gd->arch.mtrr_req_count; i++, req++) - mtrr_set_next_var(req->type, req->start, req->size); + set_var_mtrr(i, req->type, req->start, req->size);
+ /* Clear the ones that are unused */ + debug("clear\n"); + for (; i < mtrr_get_var_count(); i++) + wrmsrl(MTRR_PHYS_MASK_MSR(i), 0); debug("close\n"); mtrr_close(&state, do_caches); debug("mtrr done\n");