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nova: support mbi2 framebuffer

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- export framebuffer information as platform_info ROM by core

Issue #2242
This commit is contained in:
Johannes Kliemann 2017-06-12 22:59:08 +02:00 committed by Norman Feske
parent f48e71e070
commit 615f2ba2da
4 changed files with 39 additions and 2 deletions
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1
repos/base-nova/include/nova/syscall-generic.h
View File

@ -91,6 +91,7 @@ namespace Nova {
struct Mem_desc
{
enum Type {
FRAMEBUFFER = -5,
ACPI_XSDT = -4,
ACPI_RSDT = -3,
MULTIBOOT_MODULE = -2,

2
repos/base-nova/ports/nova.hash
View File

@ -1 +1 @@
d303aea094b6576a9bb0ba350c7cf4eb648e5ca4
a2edf3c16d4d5ab39ba62641aa6ed1fea3227c5c

2
repos/base-nova/ports/nova.port
View File

@ -4,7 +4,7 @@ DOWNLOADS := nova.git
# r9 branch - use r9_debug for more verbose kernel messages
URL(nova) := https://github.com/alex-ab/NOVA.git
REV(nova) := 9a3605ead755be8b5820de3ae6015d6de8baaaf5
REV(nova) := 402338722a991ea9f203e098484af6748cb1f14d
DIR(nova) := src/kernel/nova
PATCHES := $(wildcard $(REP_DIR)/patches/*.patch)

36
repos/base-nova/src/core/platform.cc
View File

@ -567,12 +567,14 @@ Platform::Platform() :
if (mem_desc->type == Hip::Mem_desc::AVAILABLE_MEMORY) continue;
if (mem_desc->type == Hip::Mem_desc::ACPI_RSDT) continue;
if (mem_desc->type == Hip::Mem_desc::ACPI_XSDT) continue;
if (mem_desc->type == Hip::Mem_desc::FRAMEBUFFER) continue;
Hip::Mem_desc * mem_d = (Hip::Mem_desc *)mem_desc_base;
for (unsigned j = 0; j < num_mem_desc; j++, mem_d++) {
if (mem_d->type == Hip::Mem_desc::AVAILABLE_MEMORY) continue;
if (mem_d->type == Hip::Mem_desc::ACPI_RSDT) continue;
if (mem_d->type == Hip::Mem_desc::ACPI_XSDT) continue;
if (mem_d->type == Hip::Mem_desc::FRAMEBUFFER) continue;
if (mem_d == mem_desc) continue;
/* if regions are disjunct all is fine */
@ -596,11 +598,35 @@ Platform::Platform() :
uint64_t rsdt = 0UL;
uint64_t xsdt = 0UL;
struct mbfb_t {
uint64_t addr = 0;
union {
uint64_t size;
struct {
uint32_t height;
uint32_t width;
};
};
union {
uint32_t aux;
struct {
uint8_t bpp;
uint8_t type;
uint8_t reserved[2];
};
};
} mbi_fb;
/* build ROM file system */
mem_desc = (Hip::Mem_desc *)mem_desc_base;
for (unsigned i = 0; i < num_mem_desc; i++, mem_desc++) {
if (mem_desc->type == Hip::Mem_desc::ACPI_RSDT) rsdt = mem_desc->addr;
if (mem_desc->type == Hip::Mem_desc::ACPI_XSDT) xsdt = mem_desc->addr;
if (mem_desc->type == Hip::Mem_desc::FRAMEBUFFER) {
mbi_fb.addr = mem_desc->addr;
mbi_fb.size = mem_desc->size;
mbi_fb.aux = mem_desc->aux;
}
if (mem_desc->type != Hip::Mem_desc::MULTIBOOT_MODULE) continue;
if (!mem_desc->addr || !mem_desc->size) continue;
@ -642,6 +668,16 @@ Platform::Platform() :
if (xsdt)
xml.attribute("xsdt", String<32>(Hex(xsdt)));
});
xml.node("boot", [&] () {
if (mbi_fb.addr) {
xml.node("framebuffer", [&] () {
xml.attribute("phys", String<32>(Hex(mbi_fb.addr)));
xml.attribute("width", mbi_fb.width);
xml.attribute("height", mbi_fb.height);
xml.attribute("bpp", mbi_fb.bpp);
});
}
});
});
unmap_local(__main_thread_utcb, core_local_addr, pages);