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commit f6e141b3e2a796fe45b60641417c85234d399436
parent c7b7de691f7f97f9e05b50c73f61ad9951e5b397
Author: Arthur Heymans <arthur@aheymans.xyz>
Date:   Tue, 17 May 2016 12:26:24 +0200

finally the correct patch for i945 vram

Diffstat:
resources/libreboot/patch/coreboot/2a3434757ef425dbdfedf1fc69e1a033a6e7310d/grub/x60/0001-i945-Enable-changing-VRAM-size.patch | 26++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/resources/libreboot/patch/coreboot/2a3434757ef425dbdfedf1fc69e1a033a6e7310d/grub/x60/0001-i945-Enable-changing-VRAM-size.patch b/resources/libreboot/patch/coreboot/2a3434757ef425dbdfedf1fc69e1a033a6e7310d/grub/x60/0001-i945-Enable-changing-VRAM-size.patch @@ -1,16 +1,16 @@ -From a378e20a4306990747213288c52571056281f738 Mon Sep 17 00:00:00 2001 +From 44b3d02a49bc25dc8e9119a11bd948db2c37a931 Mon Sep 17 00:00:00 2001 From: Arthur Heymans <arthur@aheymans.xyz> Date: Sun, 15 May 2016 02:17:12 +0200 Subject: [PATCH] i945: Enable changing VRAM size On i945 the vram size was the default 8mb. It was also possible -to set it 1mb hardcoding it in early_init.c +to set it 1mb or 0mb hardcoding the GGC register in early_init.c -The intel documentation on i945 only mentions those two options. -It was set using 3 bits. The documententation also makes mention -of 4mb, 16mb, 32mb, 64mb but not how to set it. +The intel documentation on i945 only documents those three options. +They are set using 3 bits. The documententation also makes mention +of 4mb, 16mb, 32mb, 48mb, 64mb but not how to set it. -Other non documented (straight forward) bit combinations allows +The other non documented (straight forward) bit combinations allows to change the VRAM size to those other states. Change-Id: I5e510e81322a4c8315c01b7963ac4b5f7f58a17e @@ -96,10 +96,10 @@ index 475e88a..bd062ad 100644 pci_write_config8(PCI_DEV(0, 0x00, 0), PAM0, 0x30); pci_write_config8(PCI_DEV(0, 0x00, 0), PAM1, 0x33); diff --git a/src/northbridge/intel/i945/gma.c b/src/northbridge/intel/i945/gma.c -index df13ef4..a1de89a 100644 +index df13ef4..f853cc8 100644 --- a/src/northbridge/intel/i945/gma.c +++ b/src/northbridge/intel/i945/gma.c -@@ -359,9 +359,21 @@ static int intel_gma_init(struct northbridge_intel_i945_config *conf, +@@ -359,9 +359,24 @@ static int intel_gma_init(struct northbridge_intel_i945_config *conf, case 1: uma_size = 1024; break; @@ -116,16 +116,19 @@ index df13ef4..a1de89a 100644 + uma_size = 32768; + break; + case 6: ++ uma_size = 49152; ++ break; ++ case 7: + uma_size = 65536; + break; } printk(BIOS_DEBUG, "%dM UMA\n", uma_size >> 10); diff --git a/src/northbridge/intel/i945/northbridge.c b/src/northbridge/intel/i945/northbridge.c -index 514f88c..e7d09af 100644 +index 514f88c..4be9827 100644 --- a/src/northbridge/intel/i945/northbridge.c +++ b/src/northbridge/intel/i945/northbridge.c -@@ -112,9 +112,21 @@ static void pci_domain_set_resources(device_t dev) +@@ -112,9 +112,24 @@ static void pci_domain_set_resources(device_t dev) case 1: uma_size = 1024; break; @@ -142,6 +145,9 @@ index 514f88c..e7d09af 100644 + uma_size = 32768; + break; + case 6: ++ uma_size = 49152; ++ break; ++ case 7: + uma_size = 65536; + break; }