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path: root/src/include/device/pci_type.h
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2019-04-07device/pci: Rewrite PCI MMCONF with symbol referenceKyösti Mälkki
The effect of pointer aliasing on writes is that any data on CPU registers that has been resolved from (non-const and non-volatile) memory objects has to be discarded and resolved. In other words, the compiler assumes that a pointer that does not have an absolute value at build-time, and is of type 'void *' or 'char *', may write over any memory object. Using a unique datatype for MMIO writes makes the pointer to _not_ qualify for pointer aliasing with any other objects in memory. This avoid constantly resolving the PCI MMCONF address, which is a derived value from a 'struct device *'. Change-Id: Id112aa5e729ffd8015bb806786bdee38783b7ea9 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31752 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-03-16device/pci_ops: Reuse romstage PCI config for ramstageKyösti Mälkki
By changing the signatures we do not need to define PCI config accessors separately for ramstage. Change-Id: I9364cb34fe8127972c772516a0a0b1d281c5ed00 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31685 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2019-03-04arch/io.h: Fix PCI and PNP simple typedefsKyösti Mälkki
Provide clean separation for PCI and PNP headers, followup will also move PNP outside <arch/io.h>. Change-Id: I85db254d50f18ea34a5e95bc517eac4085a5fafa Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/31690 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-02-11device/pci: Always define PCI_DEV()Kyösti Mälkki
This has uses outside ARCH_x86 and/or __PRE_RAM__. Change-Id: I2eec674ec5ba4ffe03a20db0f73cf87e5e4b4d0d Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/31302 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-01-04src: Move {pci,pnp}_devfn_t to common 'device/pci_type.h'Elyes HAOUAS
Definitions of these types are arch-agnostic. Shared device subsystem files cannot include arch/pci_ops.h for ARM and arch/io.h for x86. Change-Id: I6a3deea676308e2dc703b5e06558b05235191044 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/29947 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>