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G4 requires isync after 256Mb ibat/dbat update, G3 requires

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isync after each bat update. Otherwise, pmap_bootstrap causes
an ISI exception. A fall-out of loader BAT removal.
This commit is contained in:
Peter Grehan 2004-07-08 12:47:36 +00:00
parent d6121456df
commit 5d64cf91fb
3 changed files with 12 additions and 9 deletions
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7
sys/powerpc/aim/mmu_oea.c
View File

@ -565,14 +565,15 @@ pmap_bootstrap(vm_offset_t kernelstart, vm_offset_t kernelend)
*/
batu = BATU(0x00000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x00000000, BAT_M, BAT_PP_RW);
__asm ("mtibatu 0,%0; mtibatl 0,%1; mtdbatu 0,%0; mtdbatl 0,%1"
__asm ("mtibatu 0,%0; mtibatl 0,%1; isync; \n"
"mtdbatu 0,%0; mtdbatl 0,%1; isync"
:: "r"(batu), "r"(batl));
#if 0
/* map frame buffer */
batu = BATU(0x90000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x90000000, BAT_I|BAT_G, BAT_PP_RW);
__asm ("mtdbatu 1,%0; mtdbatl 1,%1"
__asm ("mtdbatu 1,%0; mtdbatl 1,%1; isync"
:: "r"(batu), "r"(batl));
#endif
@ -580,7 +581,7 @@ pmap_bootstrap(vm_offset_t kernelstart, vm_offset_t kernelend)
/* map pci space */
batu = BATU(0x80000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x80000000, BAT_I|BAT_G, BAT_PP_RW);
__asm ("mtdbatu 1,%0; mtdbatl 1,%1"
__asm ("mtdbatu 1,%0; mtdbatl 1,%1; isync"
:: "r"(batu), "r"(batl));
#endif

7
sys/powerpc/powerpc/mmu_oea.c
View File

@ -565,14 +565,15 @@ pmap_bootstrap(vm_offset_t kernelstart, vm_offset_t kernelend)
*/
batu = BATU(0x00000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x00000000, BAT_M, BAT_PP_RW);
__asm ("mtibatu 0,%0; mtibatl 0,%1; mtdbatu 0,%0; mtdbatl 0,%1"
__asm ("mtibatu 0,%0; mtibatl 0,%1; isync; \n"
"mtdbatu 0,%0; mtdbatl 0,%1; isync"
:: "r"(batu), "r"(batl));
#if 0
/* map frame buffer */
batu = BATU(0x90000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x90000000, BAT_I|BAT_G, BAT_PP_RW);
__asm ("mtdbatu 1,%0; mtdbatl 1,%1"
__asm ("mtdbatu 1,%0; mtdbatl 1,%1; isync"
:: "r"(batu), "r"(batl));
#endif
@ -580,7 +581,7 @@ pmap_bootstrap(vm_offset_t kernelstart, vm_offset_t kernelend)
/* map pci space */
batu = BATU(0x80000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x80000000, BAT_I|BAT_G, BAT_PP_RW);
__asm ("mtdbatu 1,%0; mtdbatl 1,%1"
__asm ("mtdbatu 1,%0; mtdbatl 1,%1; isync"
:: "r"(batu), "r"(batl));
#endif

7
sys/powerpc/powerpc/pmap.c
View File

@ -565,14 +565,15 @@ pmap_bootstrap(vm_offset_t kernelstart, vm_offset_t kernelend)
*/
batu = BATU(0x00000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x00000000, BAT_M, BAT_PP_RW);
__asm ("mtibatu 0,%0; mtibatl 0,%1; mtdbatu 0,%0; mtdbatl 0,%1"
__asm ("mtibatu 0,%0; mtibatl 0,%1; isync; \n"
"mtdbatu 0,%0; mtdbatl 0,%1; isync"
:: "r"(batu), "r"(batl));
#if 0
/* map frame buffer */
batu = BATU(0x90000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x90000000, BAT_I|BAT_G, BAT_PP_RW);
__asm ("mtdbatu 1,%0; mtdbatl 1,%1"
__asm ("mtdbatu 1,%0; mtdbatl 1,%1; isync"
:: "r"(batu), "r"(batl));
#endif
@ -580,7 +581,7 @@ pmap_bootstrap(vm_offset_t kernelstart, vm_offset_t kernelend)
/* map pci space */
batu = BATU(0x80000000, BAT_BL_256M, BAT_Vs);
batl = BATL(0x80000000, BAT_I|BAT_G, BAT_PP_RW);
__asm ("mtdbatu 1,%0; mtdbatl 1,%1"
__asm ("mtdbatu 1,%0; mtdbatl 1,%1; isync"
:: "r"(batu), "r"(batl));
#endif