diff options
Diffstat (limited to 'arch/mips/cavium-octeon/setup.c')
-rw-r--r-- | arch/mips/cavium-octeon/setup.c | 82 |
1 files changed, 1 insertions, 81 deletions
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index b321d3b16877..9a06fa9f9f0c 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c | |||
@@ -45,9 +45,6 @@ extern struct plat_smp_ops octeon_smp_ops; | |||
45 | extern void pci_console_init(const char *arg); | 45 | extern void pci_console_init(const char *arg); |
46 | #endif | 46 | #endif |
47 | 47 | ||
48 | #ifdef CONFIG_CAVIUM_RESERVE32 | ||
49 | extern uint64_t octeon_reserve32_memory; | ||
50 | #endif | ||
51 | static unsigned long long MAX_MEMORY = 512ull << 20; | 48 | static unsigned long long MAX_MEMORY = 512ull << 20; |
52 | 49 | ||
53 | struct octeon_boot_descriptor *octeon_boot_desc_ptr; | 50 | struct octeon_boot_descriptor *octeon_boot_desc_ptr; |
@@ -186,54 +183,6 @@ void octeon_check_cpu_bist(void) | |||
186 | write_octeon_c0_dcacheerr(0); | 183 | write_octeon_c0_dcacheerr(0); |
187 | } | 184 | } |
188 | 185 | ||
189 | #ifdef CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB | ||
190 | /** | ||
191 | * Called on every core to setup the wired tlb entry needed | ||
192 | * if CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB is set. | ||
193 | * | ||
194 | */ | ||
195 | static void octeon_hal_setup_per_cpu_reserved32(void *unused) | ||
196 | { | ||
197 | /* | ||
198 | * The config has selected to wire the reserve32 memory for all | ||
199 | * userspace applications. We need to put a wired TLB entry in for each | ||
200 | * 512MB of reserve32 memory. We only handle double 256MB pages here, | ||
201 | * so reserve32 must be multiple of 512MB. | ||
202 | */ | ||
203 | uint32_t size = CONFIG_CAVIUM_RESERVE32; | ||
204 | uint32_t entrylo0 = | ||
205 | 0x7 | ((octeon_reserve32_memory & ((1ul << 40) - 1)) >> 6); | ||
206 | uint32_t entrylo1 = entrylo0 + (256 << 14); | ||
207 | uint32_t entryhi = (0x80000000UL - (CONFIG_CAVIUM_RESERVE32 << 20)); | ||
208 | while (size >= 512) { | ||
209 | #if 0 | ||
210 | pr_info("CPU%d: Adding double wired TLB entry for 0x%lx\n", | ||
211 | smp_processor_id(), entryhi); | ||
212 | #endif | ||
213 | add_wired_entry(entrylo0, entrylo1, entryhi, PM_256M); | ||
214 | entrylo0 += 512 << 14; | ||
215 | entrylo1 += 512 << 14; | ||
216 | entryhi += 512 << 20; | ||
217 | size -= 512; | ||
218 | } | ||
219 | } | ||
220 | #endif /* CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB */ | ||
221 | |||
222 | /** | ||
223 | * Called to release the named block which was used to made sure | ||
224 | * that nobody used the memory for something else during | ||
225 | * init. Now we'll free it so userspace apps can use this | ||
226 | * memory region with bootmem_alloc. | ||
227 | * | ||
228 | * This function is called only once from prom_free_prom_memory(). | ||
229 | */ | ||
230 | void octeon_hal_setup_reserved32(void) | ||
231 | { | ||
232 | #ifdef CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB | ||
233 | on_each_cpu(octeon_hal_setup_per_cpu_reserved32, NULL, 0, 1); | ||
234 | #endif | ||
235 | } | ||
236 | |||
237 | /** | 186 | /** |
238 | * Reboot Octeon | 187 | * Reboot Octeon |
239 | * | 188 | * |
@@ -294,18 +243,6 @@ static void octeon_halt(void) | |||
294 | octeon_kill_core(NULL); | 243 | octeon_kill_core(NULL); |
295 | } | 244 | } |
296 | 245 | ||
297 | #if 0 | ||
298 | /** | ||
299 | * Platform time init specifics. | ||
300 | * Returns | ||
301 | */ | ||
302 | void __init plat_time_init(void) | ||
303 | { | ||
304 | /* Nothing special here, but we are required to have one */ | ||
305 | } | ||
306 | |||
307 | #endif | ||
308 | |||
309 | /** | 246 | /** |
310 | * Handle all the error condition interrupts that might occur. | 247 | * Handle all the error condition interrupts that might occur. |
311 | * | 248 | * |
@@ -502,25 +439,13 @@ void __init prom_init(void) | |||
502 | * memory when it is getting memory from the | 439 | * memory when it is getting memory from the |
503 | * bootloader. Later, after the memory allocations are | 440 | * bootloader. Later, after the memory allocations are |
504 | * complete, the reserve32 will be freed. | 441 | * complete, the reserve32 will be freed. |
505 | */ | 442 | * |
506 | #ifdef CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB | ||
507 | if (CONFIG_CAVIUM_RESERVE32 & 0x1ff) | ||
508 | pr_err("CAVIUM_RESERVE32 isn't a multiple of 512MB. " | ||
509 | "This is required if CAVIUM_RESERVE32_USE_WIRED_TLB " | ||
510 | "is set\n"); | ||
511 | else | ||
512 | addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20, | ||
513 | 0, 0, 512 << 20, | ||
514 | "CAVIUM_RESERVE32", 0); | ||
515 | #else | ||
516 | /* | ||
517 | * Allocate memory for RESERVED32 aligned on 2MB boundary. This | 443 | * Allocate memory for RESERVED32 aligned on 2MB boundary. This |
518 | * is in case we later use hugetlb entries with it. | 444 | * is in case we later use hugetlb entries with it. |
519 | */ | 445 | */ |
520 | addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20, | 446 | addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20, |
521 | 0, 0, 2 << 20, | 447 | 0, 0, 2 << 20, |
522 | "CAVIUM_RESERVE32", 0); | 448 | "CAVIUM_RESERVE32", 0); |
523 | #endif | ||
524 | if (addr < 0) | 449 | if (addr < 0) |
525 | pr_err("Failed to allocate CAVIUM_RESERVE32 memory area\n"); | 450 | pr_err("Failed to allocate CAVIUM_RESERVE32 memory area\n"); |
526 | else | 451 | else |
@@ -817,9 +742,4 @@ void prom_free_prom_memory(void) | |||
817 | panic("Unable to request_irq(OCTEON_IRQ_RML)\n"); | 742 | panic("Unable to request_irq(OCTEON_IRQ_RML)\n"); |
818 | } | 743 | } |
819 | #endif | 744 | #endif |
820 | |||
821 | /* This call is here so that it is performed after any TLB | ||
822 | initializations. It needs to be after these in case the | ||
823 | CONFIG_CAVIUM_RESERVE32_USE_WIRED_TLB option is set */ | ||
824 | octeon_hal_setup_reserved32(); | ||
825 | } | 745 | } |