diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2023-04-20 13:23:23 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-04-21 15:14:18 +0000 |
| commit | 392cf2f8f842b3d1705927e9b784032d88296a0d (patch) | |
| tree | 7377f924c6dce491ceec5fc7d08db07588dd0b2d /src/soc/amd | |
| parent | 09906111aaaa2a74e67b2483ee9dd7e0fbbddf2b (diff) | |
soc/amd/stoneyridge/northbridge: use get_top_of_mem_[below,above]_4gb
Use get_top_of_mem_below_4gb and get_top_of_mem_above_4g instead of
open-coding the functionality.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I04f2a3744aee9beedaa97b154a652ce6f0c705c0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74613
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Diffstat (limited to 'src/soc/amd')
| -rw-r--r-- | src/soc/amd/stoneyridge/northbridge.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/soc/amd/stoneyridge/northbridge.c b/src/soc/amd/stoneyridge/northbridge.c index ccfa9cbbe5..bafeabbe24 100644 --- a/src/soc/amd/stoneyridge/northbridge.c +++ b/src/soc/amd/stoneyridge/northbridge.c @@ -327,8 +327,8 @@ void domain_read_resources(struct device *dev) uint64_t uma_base = get_uma_base(); uint32_t uma_size = get_uma_size(); uint32_t mem_useable = (uintptr_t)cbmem_top(); - msr_t tom = rdmsr(TOP_MEM); - msr_t high_tom = rdmsr(TOP_MEM2); + uint32_t tom = get_top_of_mem_below_4gb(); + uint64_t high_tom = get_top_of_mem_above_4g(); uint64_t high_mem_useable; int idx = 0x10; @@ -352,16 +352,15 @@ void domain_read_resources(struct device *dev) /* Low top usable RAM -> Low top RAM (bottom pci mmio hole) */ reserved_ram_resource_kb(dev, idx++, mem_useable / KiB, - (tom.lo - mem_useable) / KiB); + (tom - mem_useable) / KiB); /* If there is memory above 4GiB */ - if (high_tom.hi) { + if (high_tom >> 32) { /* 4GiB -> high top usable */ if (uma_base >= (4ull * GiB)) high_mem_useable = uma_base; else - high_mem_useable = ((uint64_t)high_tom.lo | - ((uint64_t)high_tom.hi << 32)); + high_mem_useable = high_tom; ram_resource_kb(dev, idx++, (4ull * GiB) / KiB, ((high_mem_useable - (4ull * GiB)) / KiB)); |