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Linker: introduce boot and pinned regions #34717

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merged 19 commits into from
May 10, 2021
Merged

Linker: introduce boot and pinned regions #34717

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4610a1b
toolchain: add Z_GENERIC_DOT_SECTION() macro
dcpleung Mar 25, 2021
51e0969
toolchain: gcc: fix extra space when using SECTION_VAR
dcpleung Feb 24, 2021
4be37c2
kernel: refactor stack declaration macros
dcpleung Mar 25, 2021
79c6714
linker: remove TEXT_START macro
dcpleung Feb 22, 2021
b227d8f
linker: add bits for boot regions
dcpleung Feb 24, 2021
d69d524
linker: add bits for pinned regions
dcpleung Feb 23, 2021
fef2a31
linker: add __isr tag
dcpleung Mar 17, 2021
331c7ac
x86: gen_mmu: add support for boot and pinned regions
dcpleung Mar 12, 2021
bad7d4a
x86: ia32/linker: add boot and pinned sections
dcpleung Feb 24, 2021
1359be5
tests: x86/pagetables: update test for boot and pinned sections
dcpleung Apr 30, 2021
842acb7
devices: mark device MMIO declarations to boot/pinned sections
dcpleung Mar 17, 2021
a936e5d
x86: ia32: put IRQ stubs into pinned linker section if needed
dcpleung Mar 17, 2021
555cfdc
intc: system_apic: mark functions as boot/pinned
dcpleung Mar 17, 2021
458fea0
intc: loapic: mark data and functions as boot/pinned
dcpleung Mar 17, 2021
c15bd06
intc: ioapic: mark data and functions as boot/pinned
dcpleung Mar 17, 2021
6fd77aa
timer: hpet: mark functions as boot/pinned/isr
dcpleung Mar 17, 2021
017024c
x86: ia32: mark symbols for boot and pinned regions
dcpleung Feb 26, 2021
1f54ba8
boards: qemu_x86_virt: enable using boot and pinned sections
dcpleung Mar 12, 2021
0e903d3
kernel: init.c: tag source for boot/pinned sections
dcpleung Mar 25, 2021
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devices: mark device MMIO declarations to boot/pinned sections 
This adds to the macros for device MMIO declaration so they can
be put into  boot or pinned linker sections as needed.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
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@dcpleung
dcpleung committed May 10, 2021
commit 842acb76b3e2945e6629553b1ed61997ad78a316
8 changes: 8 additions & 0 deletions include/sys/device_mmio.h
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
#define ZEPHYR_INCLUDE_SYS_DEVICE_MMIO_H

#include <toolchain/common.h>
#include <linker/sections.h>
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In #41555 I'm moving this #include before the previous one to fix a BUILD_ASSERT redefinition


/**
* @defgroup device-mmio Device memory-mapped IO management
Expand Down Expand Up @@ -81,6 +82,7 @@ struct z_device_mmio_rom {
* @param flags Caching mode and access flags, see K_MEM_CACHE_* and
* K_MEM_PERM_* macros
*/
__boot_func
static inline void device_map(mm_reg_t *virt_addr, uintptr_t phys_addr,
size_t size, uint32_t flags)
{
Expand Down Expand Up @@ -539,11 +541,14 @@ struct z_device_mmio_rom {
*/
#ifdef DEVICE_MMIO_IS_IN_RAM
#define DEVICE_MMIO_TOPLEVEL(name, node_id) \
__pinned_bss \
mm_reg_t Z_TOPLEVEL_RAM_NAME(name); \
__pinned_rodata \
const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name) = \
Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
#else
#define DEVICE_MMIO_TOPLEVEL(name, node_id) \
__pinned_rodata \
const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name) = \
Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
#endif /* DEVICE_MMIO_IS_IN_RAM */
Expand Down Expand Up @@ -587,11 +592,14 @@ struct z_device_mmio_rom {
*/
#ifdef DEVICE_MMIO_IS_IN_RAM
#define DEVICE_MMIO_TOPLEVEL_STATIC(name, node_id) \
__pinned_bss \
static mm_reg_t Z_TOPLEVEL_RAM_NAME(name); \
__pinned_rodata \
static const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name) = \
Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
#else
#define DEVICE_MMIO_TOPLEVEL_STATIC(name, node_id) \
__pinned_rodata \
static const struct z_device_mmio_rom Z_TOPLEVEL_ROM_NAME(name) = \
Z_DEVICE_MMIO_ROM_INITIALIZER(node_id)
#endif /* DEVICE_MMIO_IS_IN_RAM */
Expand Down