From 8ef38186faea3d9b5e6f0f1242f668cb7e7a3d52 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Mon, 12 Jun 2000 19:57:02 +0000 Subject: Patch from John Cotton , Charles-Antoine Gauthier , and Darlene A. Stewart to add support for a number of very significant things: + BSPs for many variations on the Motorola MBX8xx board series + Cache Manager including initial support for m68040 and PowerPC + Rework of mpc8xx libcpu code so all mpc8xx CPUs now use same code base. + Rework of eth_comm BSP to utiltize above. John reports this works on the 821 and 860 --- c/src/lib/libcpu/i386/page.c | 30 ++---------------------------- 1 file changed, 2 insertions(+), 28 deletions(-) (limited to 'c/src/lib/libcpu/i386/page.c') diff --git a/c/src/lib/libcpu/i386/page.c b/c/src/lib/libcpu/i386/page.c index fc28b7687a..e5cceeed23 100644 --- a/c/src/lib/libcpu/i386/page.c +++ b/c/src/lib/libcpu/i386/page.c @@ -45,7 +45,7 @@ extern rtems_unsigned32 rtemsFreeMemStart; void _CPU_disable_paging() { cr0 regCr0; - flush_cache(); + rtems_flush_entire_data_cache(); regCr0.i = i386_get_cr0(); regCr0.cr0.paging = 0; i386_set_cr0( regCr0.i ); @@ -60,7 +60,7 @@ void _CPU_enable_paging() { regCr0.i = i386_get_cr0(); regCr0.cr0.paging = 1; i386_set_cr0( regCr0.i ); - flush_cache(); + rtems_flush_entire_data_cache(); } @@ -153,32 +153,6 @@ int init_paging() { return 0; } -/* - * Disable the entire cache - */ -void _CPU_disable_cache() { - cr0 regCr0; - - regCr0.i = i386_get_cr0(); - regCr0.cr0.page_level_cache_disable = 1; - regCr0.cr0.no_write_through = 1; - i386_set_cr0( regCr0.i ); - flush_cache(); -} - -/* - * Disable the entire cache - */ -void _CPU_enable_cache() { - cr0 regCr0; - - regCr0.i = i386_get_cr0(); - regCr0.cr0.page_level_cache_disable = 0; - regCr0.cr0.no_write_through = 0; - i386_set_cr0( regCr0.i ); - /*flush_cache();*/ -} - /* * Is cache enable */ -- cgit v1.2.3