diff options
| author | Felix Held <felix.held@amd.corp-partner.google.com> | 2021-10-19 18:32:41 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-10-20 17:28:52 +0000 |
| commit | 5911096e06a7558cef6ce1e108c97a689fb091dc (patch) | |
| tree | 6e2b46fea54192706c0f3ea81ef7cf7b54b1ee03 /src/cpu/x86/mp_init.c | |
| parent | b5376ff9725581e8000851e39867e0d48623a158 (diff) | |
cpu/x86/mp_init: use cb_err as start_aps return type
Using cb_err as return type clarifies the meaning of the different
return values.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Icb96f28b4d59b3d00638a43c927df80f5d1643f9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58455
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/cpu/x86/mp_init.c')
| -rw-r--r-- | src/cpu/x86/mp_init.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/src/cpu/x86/mp_init.c b/src/cpu/x86/mp_init.c index 637adaa39e..806fc98123 100644 --- a/src/cpu/x86/mp_init.c +++ b/src/cpu/x86/mp_init.c @@ -448,14 +448,14 @@ static enum cb_err send_sipi_to_aps(int ap_count, atomic_t *num_aps, int sipi_ve return CB_SUCCESS; } -static int start_aps(struct bus *cpu_bus, int ap_count, atomic_t *num_aps) +static enum cb_err start_aps(struct bus *cpu_bus, int ap_count, atomic_t *num_aps) { int sipi_vector; /* Max location is 4KiB below 1MiB */ const int max_vector_loc = ((1 << 20) - (1 << 12)) >> 12; if (ap_count == 0) - return 0; + return CB_SUCCESS; /* The vector is sent as a 4k aligned address in one byte. */ sipi_vector = sipi_vector_location >> 12; @@ -463,7 +463,7 @@ static int start_aps(struct bus *cpu_bus, int ap_count, atomic_t *num_aps) if (sipi_vector > max_vector_loc) { printk(BIOS_CRIT, "SIPI vector too large! 0x%08x\n", sipi_vector); - return -1; + return CB_ERR; } printk(BIOS_DEBUG, "Attempting to start %d APs\n", ap_count); @@ -475,7 +475,7 @@ static int start_aps(struct bus *cpu_bus, int ap_count, atomic_t *num_aps) printk(BIOS_DEBUG, "Waiting for ICR not to be busy...\n"); if (apic_wait_timeout(1000 /* 1 ms */, 50)) { printk(BIOS_ERR, "timed out. Aborting.\n"); - return -1; + return CB_ERR; } printk(BIOS_DEBUG, "done.\n"); } @@ -490,26 +490,26 @@ static int start_aps(struct bus *cpu_bus, int ap_count, atomic_t *num_aps) /* Send 1st Startup IPI (SIPI) */ if (send_sipi_to_aps(ap_count, num_aps, sipi_vector) != CB_SUCCESS) - return -1; + return CB_ERR; /* Wait for CPUs to check in up to 200 us. */ wait_for_aps(num_aps, ap_count, 200 /* us */, 15 /* us */); if (CONFIG(X86_AMD_INIT_SIPI)) - return 0; + return CB_SUCCESS; /* Send 2nd SIPI */ if (send_sipi_to_aps(ap_count, num_aps, sipi_vector) != CB_SUCCESS) - return -1; + return CB_ERR; /* Wait for CPUs to check in. */ if (wait_for_aps(num_aps, ap_count, 100000 /* 100 ms */, 50 /* us */)) { printk(BIOS_ERR, "Not all APs checked in: %d/%d.\n", atomic_read(num_aps), ap_count); - return -1; + return CB_ERR; } - return 0; + return CB_SUCCESS; } static int bsp_do_flight_plan(struct mp_params *mp_params) @@ -637,7 +637,7 @@ static int mp_init(struct bus *cpu_bus, struct mp_params *p) /* Start the APs providing number of APs and the cpus_entered field. */ global_num_aps = p->num_cpus - 1; - if (start_aps(cpu_bus, global_num_aps, ap_count) < 0) { + if (start_aps(cpu_bus, global_num_aps, ap_count) != CB_SUCCESS) { mdelay(1000); printk(BIOS_DEBUG, "%d/%d eventually checked in?\n", atomic_read(ap_count), global_num_aps); |