mirrors/qemu
0
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2024-11-29 23:03:41 +08:00
Code Issues Packages Projects Releases Wiki Activity

arm: explicitly mark device loads as little-endian

Browse Source 
Behaviour of emulated devices should not depend on the endianness
of the CPU, so avoid using the endian-dependent load and store
functions in the PXA2xx and OMAP display devices. These devices
are little endian when they do DMA access.

(Since ARM softmmu is always compiled as little endian, this means
that the endian-dependent load and store functions are always little
endian, so this commit makes no functionally visible change.)

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: rewrote commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Paolo Bonzini 2015-12-17 13:37:13 +00:00 committed by Peter Maydell
parent f1f7e4bf76
commit 58f6d82fc4
2 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
hw/display/omap_lcd_template.h
View File

@ -136,7 +136,7 @@ static void glue(draw_line12_, DEPTH)(void *opaque,
uint8_t r, g, b;
do {
v = lduw_p((void *) s);
v = lduw_le_p((void *) s);
r = (v >> 4) & 0xf0;
g = v & 0xf0;
b = (v << 4) & 0xf0;
@ -159,7 +159,7 @@ static void glue(draw_line16_, DEPTH)(void *opaque,
uint8_t r, g, b;
do {
v = lduw_p((void *) s);
v = lduw_le_p((void *) s);
r = (v >> 8) & 0xf8;
g = (v >> 3) & 0xfc;
b = (v << 3) & 0xf8;

8
hw/display/pxa2xx_lcd.c
View File

@ -309,10 +309,10 @@ static void pxa2xx_descriptor_load(PXA2xxLCDState *s)
}
cpu_physical_memory_read(descptr, &desc, sizeof(desc));
s->dma_ch[i].descriptor = tswap32(desc.fdaddr);
s->dma_ch[i].source = tswap32(desc.fsaddr);
s->dma_ch[i].id = tswap32(desc.fidr);
s->dma_ch[i].command = tswap32(desc.ldcmd);
s->dma_ch[i].descriptor = le32_to_cpu(desc.fdaddr);
s->dma_ch[i].source = le32_to_cpu(desc.fsaddr);
s->dma_ch[i].id = le32_to_cpu(desc.fidr);
s->dma_ch[i].command = le32_to_cpu(desc.ldcmd);
}
}