diff options
author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2017-04-15 20:07:53 +0300 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2017-05-18 06:50:53 +0200 |
commit | e87564ffe7d0636699467b776a24adffb2f11cca (patch) | |
tree | b4c4aa66031cfd20f29714d044c67217a439aba2 /src/northbridge/amd/pi/00670F00/northbridge.c | |
parent | 61be3603f4b9f353e605d7b7c8d0d9f3b90f5636 (diff) |
binaryPI: 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: I0c375e5da0dfef6cef0c50272356cd32a87b1ff6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/19346
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/northbridge/amd/pi/00670F00/northbridge.c')
-rw-r--r-- | src/northbridge/amd/pi/00670F00/northbridge.c | 59 |
1 files changed, 1 insertions, 58 deletions
diff --git a/src/northbridge/amd/pi/00670F00/northbridge.c b/src/northbridge/amd/pi/00670F00/northbridge.c index 3ba0687df1..006bc48a6e 100644 --- a/src/northbridge/amd/pi/00670F00/northbridge.c +++ b/src/northbridge/amd/pi/00670F00/northbridge.c @@ -696,55 +696,10 @@ static struct hw_mem_hole_info get_hw_mem_hole_info(void) } #endif -#define ONE_MB_SHIFT 20 -#define ONE_GB_SHIFT 30 - -static void setup_uma_memory(void) -{ -#if CONFIG_GFXUMA - uint64_t topmem = bsp_topmem(); - uint64_t topmem2 = bsp_topmem2(); - uint32_t sysmem_mb, sysmem_gb; - - /* refer to UMA_AUTO size computation in Family15h BKDG. */ - /* Please reference MemNGetUmaSizeML() */ - /* - * Total system memory UMASize - * >= 6G 1024M - * >= 4G 512M - * >= 2G 256M - * < 2G 128M - */ - - sysmem_mb = (topmem + (16ull << ONE_MB_SHIFT)) >> ONE_MB_SHIFT; // Ignore 16MB allocated for C6 when finding UMA size - sysmem_mb += topmem2 ? ((topmem2 >> ONE_MB_SHIFT) - 4096) : 0; - sysmem_gb = sysmem_mb >> (ONE_GB_SHIFT - ONE_MB_SHIFT); - printk(BIOS_SPEW, "%s: system memory size %luGB, topmem2 size %lluMB, topmem size %lluMB\n", - __func__, (unsigned long)sysmem_gb, (topmem2 >> ONE_MB_SHIFT), (topmem >> ONE_MB_SHIFT)); - if (sysmem_gb >= 6) { - uma_memory_size = 1024 << ONE_MB_SHIFT; - } else if (sysmem_gb >= 4) { - uma_memory_size = 512 << ONE_MB_SHIFT; - } else if (sysmem_gb >= 2) { - uma_memory_size = 256 << ONE_MB_SHIFT; - } else { - uma_memory_size = 128 << ONE_MB_SHIFT; - } - uma_memory_base = topmem - uma_memory_size; /* TOP_MEM1 */ - - printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n", - __func__, uma_memory_size, uma_memory_base); - - /* TODO: TOP_MEM2 */ -#endif -} - - static void domain_set_resources(device_t dev) { unsigned long mmio_basek; u32 pci_tolm; - u64 ramtop = 0; int i, idx; struct bus *link; #if CONFIG_HW_MEM_HOLE_SIZEK != 0 @@ -815,8 +770,6 @@ static void domain_set_resources(device_t dev) ram_resource(dev, (idx | i), basek, pre_sizek); idx += 0x10; sizek -= pre_sizek; - if (!ramtop) - ramtop = mmio_basek * 1024; } basek = mmio_basek; } @@ -834,16 +787,9 @@ static void domain_set_resources(device_t dev) idx += 0x10; printk(BIOS_DEBUG, "node %d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n", i, mmio_basek, basek, limitk); - if (!ramtop) - ramtop = limitk * 1024; } -#if CONFIG_GFXUMA - set_top_of_ram(uma_memory_base); - uma_resource(dev, 7, uma_memory_base >> 10, uma_memory_size >> 10); -#else - set_top_of_ram(ramtop); -#endif + add_uma_resource_below_tolm(dev, 7); for (link = dev->link_list; link; link = link->next) { if (link->children) { @@ -1109,11 +1055,8 @@ static void root_complex_enable_dev(struct device *dev) { static int done = 0; - /* Do not delay UMA setup, as a device on the PCI bus may evaluate - the global uma_memory variables already in its enable function. */ if (!done) { setup_bsp_ramtop(); - setup_uma_memory(); done = 1; } |