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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2017-04-15 20:07:53 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2017-05-18 06:48:57 +0200 |
| commit | 61be3603f4b9f353e605d7b7c8d0d9f3b90f5636 (patch) | |
| tree | 0de776853b482a83faff1ca5bbfdc2df243f7214 /src/southbridge/amd/agesa | |
| parent | 17bb225be7dd031b9803f33dec88e9d53e3a582f (diff) | |
AGESA: Fix UMA calculations
Vendorcode decides already in AMD_INIT_POST the exact location
of UMA memory. To meet alignment requirements, it will extend
uma_memory_size. We cannot calculate base from size and TOP_MEM1,
but need to calculate size from base and TOP_MEM1 instead.
Also allows selection of UmaMode==UMA_SPECIFIED to manually set
amount of memory reserved for framebuffer.
Change-Id: I2514c70a331c7fbf0056f22bf64f19c9374754c0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19328
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Diffstat (limited to 'src/southbridge/amd/agesa')
| -rw-r--r-- | src/southbridge/amd/agesa/hudson/ramtop.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/src/southbridge/amd/agesa/hudson/ramtop.c b/src/southbridge/amd/agesa/hudson/ramtop.c index 567cd12979..798a3bbf42 100644 --- a/src/southbridge/amd/agesa/hudson/ramtop.c +++ b/src/southbridge/amd/agesa/hudson/ramtop.c @@ -26,27 +26,21 @@ int acpi_get_sleep_type(void) return (int)tmp; } -#if IS_ENABLED(CONFIG_LATE_CBMEM_INIT) - -#ifndef __PRE_RAM__ void backup_top_of_ram(uint64_t ramtop) { - u32 dword = (u32) ramtop; + u32 dword = ramtop; int nvram_pos = 0xf8, i; /* temp */ for (i = 0; i < 4; i++) { outb(nvram_pos, BIOSRAM_INDEX); - outb((dword >>(8 * i)) & 0xff , BIOSRAM_DATA); + outb((dword >> (8 * i)) & 0xff, BIOSRAM_DATA); nvram_pos++; } } -#endif unsigned long get_top_of_ram(void) { uint32_t xdata = 0; int xnvram_pos = 0xf8, xi; - if (acpi_get_sleep_type() != 3) - return 0; for (xi = 0; xi < 4; xi++) { outb(xnvram_pos, BIOSRAM_INDEX); xdata &= ~(0xff << (xi * 8)); @@ -55,5 +49,3 @@ unsigned long get_top_of_ram(void) } return (unsigned long) xdata; } - -#endif |