diff options
| author | Nico Huber <nico.h@gmx.de> | 2020-04-26 19:46:35 +0200 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2020-05-27 21:35:16 +0000 |
| commit | dd597627295e0063e29ba43a0b2d6fdefb12c2c6 (patch) | |
| tree | 05dc1402dd060b24e77ed4ce95b2ac21c6aa3e19 /src/soc | |
| parent | dfdf102000584e38952122c74858e46fa69acc60 (diff) | |
| download | coreboot-dd597627295e0063e29ba43a0b2d6fdefb12c2c6.tar.xz | |
intel/gma: Only enable bus mastering if we are going to use it
Also fix wrong 32-bit writes.
Change-Id: Ib038f0cd558223536da08ba2264774db11cd8357
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40727
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/broadwell/igd.c | 8 | ||||
| -rw-r--r-- | src/soc/intel/common/block/graphics/graphics.c | 6 |
2 files changed, 5 insertions, 9 deletions
diff --git a/src/soc/intel/broadwell/igd.c b/src/soc/intel/broadwell/igd.c index 0f83937a77..41167b1cf9 100644 --- a/src/soc/intel/broadwell/igd.c +++ b/src/soc/intel/broadwell/igd.c @@ -496,15 +496,13 @@ static void igd_init(struct device *dev) intel_gma_init_igd_opregion(); - /* IGD needs to be Bus Master */ - u32 reg32 = pci_read_config32(dev, PCI_COMMAND); - reg32 |= PCI_COMMAND_MASTER; - pci_write_config32(dev, PCI_COMMAND, reg32); - gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0); if (!gtt_res || !gtt_res->base) return; + if (!CONFIG(NO_GFX_INIT)) + pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER); + /* Wait for any configured pre-graphics delay */ if (!acpi_is_wakeup_s3()) { #if CONFIG(CHROMEOS) diff --git a/src/soc/intel/common/block/graphics/graphics.c b/src/soc/intel/common/block/graphics/graphics.c index 6b035bc736..ba4bc85a22 100644 --- a/src/soc/intel/common/block/graphics/graphics.c +++ b/src/soc/intel/common/block/graphics/graphics.c @@ -45,10 +45,8 @@ static void gma_init(struct device *const dev) if (CONFIG(RUN_FSP_GOP)) return; - /* IGD needs to Bus Master */ - u32 reg32 = pci_read_config32(dev, PCI_COMMAND); - reg32 |= PCI_COMMAND_MASTER; - pci_write_config32(dev, PCI_COMMAND, reg32); + if (!CONFIG(NO_GFX_INIT)) + pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER); if (CONFIG(MAINBOARD_USE_LIBGFXINIT)) { if (!acpi_is_wakeup_s3() && display_init_required()) { |