diff options
| author | Nico Huber <nico.huber@secunet.com> | 2021-10-14 18:22:30 +0200 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2021-11-09 11:04:35 +0000 |
| commit | e01e25d4fc1d57fd84f5043f3b0b84c596bb5253 (patch) | |
| tree | 2e2c2b59eab2c85e2f8eb25c027f402004137f9b /src | |
| parent | afe18986070ca6a755eda104624f0dd4756ae96a (diff) | |
pci_mmio_cfg: Gather everything MMCONF (ECAM) related
To ease code sharing with other MMIO-based configuration mechanisms,
move everything MMCONF (more specifically ECAM) related to one spot
and guard it.
Change-Id: Idda2320c331499dabbee7447f1ad3e81340f2a25
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58332
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/device/pci_mmio_cfg.h | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/src/include/device/pci_mmio_cfg.h b/src/include/device/pci_mmio_cfg.h index e873abc32c..557adcb0ca 100644 --- a/src/include/device/pci_mmio_cfg.h +++ b/src/include/device/pci_mmio_cfg.h @@ -7,10 +7,6 @@ #include <device/mmio.h> #include <device/pci_type.h> -/* By not assigning this to CONFIG_MMCONF_BASE_ADDRESS here we - * prevent some sub-optimal constant folding. */ -extern u8 *const pci_mmconf; - /* Using a unique datatype for MMIO writes makes the pointers to _not_ * qualify for pointer aliasing with any other objects in memory. * @@ -29,12 +25,28 @@ union pci_bank { uint32_t reg32[4096 / sizeof(uint32_t)]; }; +#if CONFIG(MMCONF_SUPPORT) + +#if CONFIG_MMCONF_BASE_ADDRESS == 0 +#error "CONFIG_MMCONF_BASE_ADDRESS undefined!" +#endif + +#if CONFIG_MMCONF_BUS_NUMBER * MiB != CONFIG_MMCONF_LENGTH +#error "CONFIG_MMCONF_LENGTH does not correspond with CONFIG_MMCONF_BUS_NUMBER!" +#endif + +/* By not assigning this to CONFIG_MMCONF_BASE_ADDRESS here we + prevent some sub-optimal constant folding. */ +extern u8 *const pci_mmconf; + static __always_inline volatile union pci_bank *pcicfg(pci_devfn_t dev) { return (void *)&pci_mmconf[PCI_DEVFN_OFFSET(dev)]; } +#endif + static __always_inline uint8_t pci_mmio_read_config8(pci_devfn_t dev, uint16_t reg) { @@ -95,18 +107,6 @@ uint32_t *pci_mmio_config32_addr(pci_devfn_t dev, uint16_t reg) return (uint32_t *)&pcicfg(dev)->reg32[reg / sizeof(uint32_t)]; } -#if CONFIG(MMCONF_SUPPORT) - -#if CONFIG_MMCONF_BASE_ADDRESS == 0 -#error "CONFIG_MMCONF_BASE_ADDRESS undefined!" -#endif - -#if CONFIG_MMCONF_BUS_NUMBER * MiB != CONFIG_MMCONF_LENGTH -#error "CONFIG_MMCONF_LENGTH does not correspond with CONFIG_MMCONF_BUS_NUMBER!" -#endif - -#endif - /* Avoid name collisions as different stages have different signature * for these functions. The _s_ stands for simple, fundamental IO or * MMIO variant. |