diff options
| author | Simon Glass <sjg@chromium.org> | 2018-10-01 12:22:37 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2018-10-09 04:40:27 -0600 |
| commit | 590cee8315e94e729493d2ecd8a604bcfbfa7d0e (patch) | |
| tree | 2ac3eacb5e1a1274da1efd3fe34a893d8d978d65 /cmd/x86 | |
| parent | 6f1c0430e88396abc8e6a91ab3cc78882c76cb7c (diff) | |
| download | u-boot-590cee8315e94e729493d2ecd8a604bcfbfa7d0e.tar.gz | |
x86: Update mtrr functions to allow leaving cache alone
At present the mtrr functions disable the cache before making changes and
enable it again afterwards. This is fine in U-Boot, but does not work if
running in CAR (such as we are in SPL).
Update the functions so that the caller can request that caches be left
alone.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'cmd/x86')
| -rw-r--r-- | cmd/x86/mtrr.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/cmd/x86/mtrr.c b/cmd/x86/mtrr.c index 70f373a72a..d3fd959235 100644 --- a/cmd/x86/mtrr.c +++ b/cmd/x86/mtrr.c @@ -73,10 +73,10 @@ static int do_mtrr_set(uint reg, int argc, char * const argv[]) mask |= MTRR_PHYS_MASK_VALID; printf("base=%llx, mask=%llx\n", base, mask); - mtrr_open(&state); + mtrr_open(&state, true); wrmsrl(MTRR_PHYS_BASE_MSR(reg), base); wrmsrl(MTRR_PHYS_MASK_MSR(reg), mask); - mtrr_close(&state); + mtrr_close(&state, true); return 0; } @@ -86,14 +86,14 @@ static int mtrr_set_valid(int reg, bool valid) struct mtrr_state state; uint64_t mask; - mtrr_open(&state); + mtrr_open(&state, true); mask = native_read_msr(MTRR_PHYS_MASK_MSR(reg)); if (valid) mask |= MTRR_PHYS_MASK_VALID; else mask &= ~MTRR_PHYS_MASK_VALID; wrmsrl(MTRR_PHYS_MASK_MSR(reg), mask); - mtrr_close(&state); + mtrr_close(&state, true); return 0; } |