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Add some CACHEALIGN_* macros and a helper function to assist in aligning data and buffers on PortalPlayer processors to cache line boundaries. They're noops when PROC_NEED_CACHEALIGN isn't defined. Go safe and increase the value to 32 since I'm not sure yet if 16 is sufficient - changing that is a one-liner. Add helper to plugin API which will be needed shortly.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15523 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2007-11-08 05:17:20 +00:00
parent 194a66ef83
commit 57d71e4267
8 changed files with 87 additions and 5 deletions
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3
firmware/drivers/lcd-16bit.c
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@ -42,7 +42,8 @@ enum fill_opt {
};
/*** globals ***/
fb_data lcd_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH] IRAM_LCDFRAMEBUFFER __attribute__ ((aligned (16)));
fb_data lcd_framebuffer[LCD_FBHEIGHT][LCD_FBWIDTH]
IRAM_LCDFRAMEBUFFER CACHEALIGN_AT_LEAST_ATTR(16);
static fb_data* lcd_backdrop = NULL;