All normal memory areas should be mapped as such.
We added these un-cached holes in our memory map to hack around the remoteproc driver missing the proper cache maintenance operations.
The problem is having these non-cached memory map areas causes stability issues later in system operation due to the nature of the K3 coherency architecture. Plus these are board specific carveouts and instead should have been added at the board level, not here in the SoC common code area.
Remove these non-cached memory map areas.
Signed-off-by: Andrew Davis afd@ti.com --- arch/arm/mach-k3/arm64-mmu.c | 48 +++--------------------------------- 1 file changed, 3 insertions(+), 45 deletions(-)
diff --git a/arch/arm/mach-k3/arm64-mmu.c b/arch/arm/mach-k3/arm64-mmu.c index 471295fa7eb..a5afdf9f4a7 100644 --- a/arch/arm/mach-k3/arm64-mmu.c +++ b/arch/arm/mach-k3/arm64-mmu.c @@ -25,19 +25,7 @@ struct mm_region am654_mem_map[] = { }, { .virt = 0x80000000UL, .phys = 0x80000000UL, - .size = 0x20000000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | - PTE_BLOCK_INNER_SHARE - }, { - .virt = 0xa0000000UL, - .phys = 0xa0000000UL, - .size = 0x02100000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) | - PTE_BLOCK_INNER_SHARE - }, { - .virt = 0xa2100000UL, - .phys = 0xa2100000UL, - .size = 0x5df00000UL, + .size = 0x80000000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, { @@ -76,19 +64,7 @@ struct mm_region j721e_mem_map[] = { }, { .virt = 0x80000000UL, .phys = 0x80000000UL, - .size = 0x20000000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | - PTE_BLOCK_INNER_SHARE - }, { - .virt = 0xa0000000UL, - .phys = 0xa0000000UL, - .size = 0x1bc00000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) | - PTE_BLOCK_NON_SHARE - }, { - .virt = 0xbbc00000UL, - .phys = 0xbbc00000UL, - .size = 0x44400000UL, + .size = 0x80000000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, { @@ -104,12 +80,6 @@ struct mm_region j721e_mem_map[] = { .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN - }, { - .virt = 0x4d80000000UL, - .phys = 0x4d80000000UL, - .size = 0x0002000000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) | - PTE_BLOCK_INNER_SHARE }, { /* List terminator */ 0, @@ -131,19 +101,7 @@ struct mm_region j7200_mem_map[] = { }, { .virt = 0x80000000UL, .phys = 0x80000000UL, - .size = 0x20000000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | - PTE_BLOCK_INNER_SHARE - }, { - .virt = 0xa0000000UL, - .phys = 0xa0000000UL, - .size = 0x04800000UL, - .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) | - PTE_BLOCK_NON_SHARE - }, { - .virt = 0xa4800000UL, - .phys = 0xa4800000UL, - .size = 0x5b800000UL, + .size = 0x80000000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, {