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-rw-r--r--arch/blackfin/kernel/module.c74
-rw-r--r--arch/blackfin/kernel/setup.c10
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S40
-rw-r--r--arch/blackfin/mm/blackfin_sram.c170
-rw-r--r--include/asm-blackfin/bfin-global.h8
-rw-r--r--include/asm-blackfin/elf.h2
-rw-r--r--include/asm-blackfin/module.h5
7 files changed, 253 insertions, 56 deletions
diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c
index 14a42848f37f..e1bebc80a5bf 100644
--- a/arch/blackfin/kernel/module.c
+++ b/arch/blackfin/kernel/module.c
@@ -173,7 +173,7 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs,
for (s = sechdrs; s < sechdrs_end; ++s) {
if ((strcmp(".l1.text", secstrings + s->sh_name) == 0) ||
((strcmp(".text", secstrings + s->sh_name) == 0) &&
- (hdr->e_flags & FLG_CODE_IN_L1) && (s->sh_size > 0))) {
+ (hdr->e_flags & EF_BFIN_CODE_IN_L1) && (s->sh_size > 0))) {
dest = l1_inst_sram_alloc(s->sh_size);
mod->arch.text_l1 = dest;
if (dest == NULL) {
@@ -188,7 +188,7 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs,
}
if ((strcmp(".l1.data", secstrings + s->sh_name) == 0) ||
((strcmp(".data", secstrings + s->sh_name) == 0) &&
- (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) {
+ (hdr->e_flags & EF_BFIN_DATA_IN_L1) && (s->sh_size > 0))) {
dest = l1_data_sram_alloc(s->sh_size);
mod->arch.data_a_l1 = dest;
if (dest == NULL) {
@@ -203,7 +203,7 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs,
}
if (strcmp(".l1.bss", secstrings + s->sh_name) == 0 ||
((strcmp(".bss", secstrings + s->sh_name) == 0) &&
- (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) {
+ (hdr->e_flags & EF_BFIN_DATA_IN_L1) && (s->sh_size > 0))) {
dest = l1_data_sram_alloc(s->sh_size);
mod->arch.bss_a_l1 = dest;
if (dest == NULL) {
@@ -242,6 +242,51 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs,
s->sh_flags &= ~SHF_ALLOC;
s->sh_addr = (unsigned long)dest;
}
+ if ((strcmp(".l2.text", secstrings + s->sh_name) == 0) ||
+ ((strcmp(".text", secstrings + s->sh_name) == 0) &&
+ (hdr->e_flags & EF_BFIN_CODE_IN_L2) && (s->sh_size > 0))) {
+ dest = l2_sram_alloc(s->sh_size);
+ mod->arch.text_l2 = dest;
+ if (dest == NULL) {
+ printk(KERN_ERR
+ "module %s: L2 SRAM allocation failed\n",
+ mod->name);
+ return -1;
+ }
+ memcpy(dest, (void *)s->sh_addr, s->sh_size);
+ s->sh_flags &= ~SHF_ALLOC;
+ s->sh_addr = (unsigned long)dest;
+ }
+ if ((strcmp(".l2.data", secstrings + s->sh_name) == 0) ||
+ ((strcmp(".data", secstrings + s->sh_name) == 0) &&
+ (hdr->e_flags & EF_BFIN_DATA_IN_L2) && (s->sh_size > 0))) {
+ dest = l2_sram_alloc(s->sh_size);
+ mod->arch.data_l2 = dest;
+ if (dest == NULL) {
+ printk(KERN_ERR
+ "module %s: L2 SRAM allocation failed\n",
+ mod->name);
+ return -1;
+ }
+ memcpy(dest, (void *)s->sh_addr, s->sh_size);
+ s->sh_flags &= ~SHF_ALLOC;
+ s->sh_addr = (unsigned long)dest;
+ }
+ if (strcmp(".l2.bss", secstrings + s->sh_name) == 0 ||
+ ((strcmp(".bss", secstrings + s->sh_name) == 0) &&
+ (hdr->e_flags & EF_BFIN_DATA_IN_L2) && (s->sh_size > 0))) {
+ dest = l2_sram_alloc(s->sh_size);
+ mod->arch.bss_l2 = dest;
+ if (dest == NULL) {
+ printk(KERN_ERR
+ "module %s: L2 SRAM allocation failed\n",
+ mod->name);
+ return -1;
+ }
+ memset(dest, 0, s->sh_size);
+ s->sh_flags &= ~SHF_ALLOC;
+ s->sh_addr = (unsigned long)dest;
+ }
}
return 0;
}
@@ -411,9 +456,10 @@ module_finalize(const Elf_Ehdr * hdr,
continue;
if ((sechdrs[i].sh_type == SHT_RELA) &&
- ((strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0) ||
+ ((strcmp(".rela.l2.text", secstrings + sechdrs[i].sh_name) == 0) ||
+ (strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0) ||
((strcmp(".rela.text", secstrings + sechdrs[i].sh_name) == 0) &&
- (hdr->e_flags & FLG_CODE_IN_L1)))) {
+ (hdr->e_flags & (EF_BFIN_CODE_IN_L1|EF_BFIN_CODE_IN_L2))))) {
apply_relocate_add((Elf_Shdr *) sechdrs, strtab,
symindex, i, mod);
}
@@ -423,14 +469,12 @@ module_finalize(const Elf_Ehdr * hdr,
void module_arch_cleanup(struct module *mod)
{
- if (mod->arch.text_l1)
- l1_inst_sram_free((void *)mod->arch.text_l1);
- if (mod->arch.data_a_l1)
- l1_data_sram_free((void *)mod->arch.data_a_l1);
- if (mod->arch.bss_a_l1)
- l1_data_sram_free((void *)mod->arch.bss_a_l1);
- if (mod->arch.data_b_l1)
- l1_data_B_sram_free((void *)mod->arch.data_b_l1);
- if (mod->arch.bss_b_l1)
- l1_data_B_sram_free((void *)mod->arch.bss_b_l1);
+ l1_inst_sram_free(mod->arch.text_l1);
+ l1_data_A_sram_free(mod->arch.data_a_l1);
+ l1_data_A_sram_free(mod->arch.bss_a_l1);
+ l1_data_B_sram_free(mod->arch.data_b_l1);
+ l1_data_B_sram_free(mod->arch.bss_b_l1);
+ l2_sram_free(mod->arch.text_l2);
+ l2_sram_free(mod->arch.data_l2);
+ l2_sram_free(mod->arch.bss_l2);
}
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 861a1db74df8..8671d1db1f99 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -104,6 +104,7 @@ void __init bf53x_relocate_l1_mem(void)
unsigned long l1_code_length;
unsigned long l1_data_a_length;
unsigned long l1_data_b_length;
+ unsigned long l2_length;
l1_code_length = _etext_l1 - _stext_l1;
if (l1_code_length > L1_CODE_LENGTH)
@@ -129,6 +130,15 @@ void __init bf53x_relocate_l1_mem(void)
/* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */
dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length +
l1_data_a_length, l1_data_b_length);
+
+#ifdef L2_LENGTH
+ l2_length = _ebss_l2 - _stext_l2;
+ if (l2_length > L2_LENGTH)
+ panic("L2 SRAM Overflow\n");
+
+ /* Copy _stext_l2 to _edata_l2 to L2 SRAM */
+ dma_memcpy(_stext_l2, _l2_lma_start, l2_length);
+#endif
}
/* add_memory_region to memmap */
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 3ecc64cab3be..0896e38d6108 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -101,6 +101,11 @@ SECTIONS
#if !L1_DATA_B_LENGTH
*(.l1.data.B)
#endif
+#ifndef L2_LENGTH
+ . = ALIGN(32);
+ *(.data_l2.cacheline_aligned)
+ *(.l2.data)
+#endif
DATA_DATA
*(.data.*)
@@ -182,14 +187,13 @@ SECTIONS
*(.l1.data)
__edata_l1 = .;
- . = ALIGN(4);
- __sbss_l1 = .;
- *(.l1.bss)
-
. = ALIGN(32);
*(.data_l1.cacheline_aligned)
. = ALIGN(4);
+ __sbss_l1 = .;
+ *(.l1.bss)
+ . = ALIGN(4);
__ebss_l1 = .;
}
@@ -203,11 +207,37 @@ SECTIONS
. = ALIGN(4);
__sbss_b_l1 = .;
*(.l1.bss.B)
-
. = ALIGN(4);
__ebss_b_l1 = .;
}
+#ifdef L2_LENGTH
+ __l2_lma_start = .;
+
+ .text_data_l2 L2_START : AT(LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1))
+ {
+ . = ALIGN(4);
+ __stext_l2 = .;
+ *(.l1.text)
+ . = ALIGN(4);
+ __etext_l2 = .;
+
+ . = ALIGN(4);
+ __sdata_l2 = .;
+ *(.l1.data)
+ __edata_l2 = .;
+
+ . = ALIGN(32);
+ *(.data_l2.cacheline_aligned)
+
+ . = ALIGN(4);
+ __sbss_l2 = .;
+ *(.l1.bss)
+ . = ALIGN(4);
+ __ebss_l2 = .;
+ }
+#endif
+
/* Force trailing alignment of our init section so that when we
* free our init memory, we don't leave behind a partial page.
*/
diff --git a/arch/blackfin/mm/blackfin_sram.c b/arch/blackfin/mm/blackfin_sram.c
index b58cf196d7cc..5af3c31c9365 100644
--- a/arch/blackfin/mm/blackfin_sram.c
+++ b/arch/blackfin/mm/blackfin_sram.c
@@ -42,6 +42,7 @@
#include "blackfin_sram.h"
static spinlock_t l1sram_lock, l1_data_sram_lock, l1_inst_sram_lock;
+static spinlock_t l2_sram_lock;
/* the data structure for L1 scratchpad and DATA SRAM */
struct sram_piece {
@@ -65,6 +66,10 @@ static struct sram_piece free_l1_data_B_sram_head, used_l1_data_B_sram_head;
static struct sram_piece free_l1_inst_sram_head, used_l1_inst_sram_head;
#endif
+#ifdef L2_LENGTH
+static struct sram_piece free_l2_sram_head, used_l2_sram_head;
+#endif
+
static struct kmem_cache *sram_piece_cache;
/* L1 Scratchpad SRAM initialization function */
@@ -97,7 +102,7 @@ static void __init l1_data_sram_init(void)
free_l1_data_A_sram_head.next =
kmem_cache_alloc(sram_piece_cache, GFP_KERNEL);
if (!free_l1_data_A_sram_head.next) {
- printk(KERN_INFO"Fail to initialize Data A SRAM.\n");
+ printk(KERN_INFO"Fail to initialize L1 Data A SRAM.\n");
return;
}
@@ -110,7 +115,7 @@ static void __init l1_data_sram_init(void)
used_l1_data_A_sram_head.next = NULL;
- printk(KERN_INFO "Blackfin Data A SRAM: %d KB (%d KB free)\n",
+ printk(KERN_INFO "Blackfin L1 Data A SRAM: %d KB (%d KB free)\n",
L1_DATA_A_LENGTH >> 10,
free_l1_data_A_sram_head.next->size >> 10);
#endif
@@ -118,7 +123,7 @@ static void __init l1_data_sram_init(void)
free_l1_data_B_sram_head.next =
kmem_cache_alloc(sram_piece_cache, GFP_KERNEL);
if (!free_l1_data_B_sram_head.next) {
- printk(KERN_INFO"Fail to initialize Data B SRAM.\n");
+ printk(KERN_INFO"Fail to initialize L1 Data B SRAM.\n");
return;
}
@@ -131,7 +136,7 @@ static void __init l1_data_sram_init(void)
used_l1_data_B_sram_head.next = NULL;
- printk(KERN_INFO "Blackfin Data B SRAM: %d KB (%d KB free)\n",
+ printk(KERN_INFO "Blackfin L1 Data B SRAM: %d KB (%d KB free)\n",
L1_DATA_B_LENGTH >> 10,
free_l1_data_B_sram_head.next->size >> 10);
#endif
@@ -146,7 +151,7 @@ static void __init l1_inst_sram_init(void)
free_l1_inst_sram_head.next =
kmem_cache_alloc(sram_piece_cache, GFP_KERNEL);
if (!free_l1_inst_sram_head.next) {
- printk(KERN_INFO"Fail to initialize Instruction SRAM.\n");
+ printk(KERN_INFO"Fail to initialize L1 Instruction SRAM.\n");
return;
}
@@ -159,7 +164,7 @@ static void __init l1_inst_sram_init(void)
used_l1_inst_sram_head.next = NULL;
- printk(KERN_INFO "Blackfin Instruction SRAM: %d KB (%d KB free)\n",
+ printk(KERN_INFO "Blackfin L1 Instruction SRAM: %d KB (%d KB free)\n",
L1_CODE_LENGTH >> 10,
free_l1_inst_sram_head.next->size >> 10);
#endif
@@ -168,6 +173,33 @@ static void __init l1_inst_sram_init(void)
spin_lock_init(&l1_inst_sram_lock);
}
+static void __init l2_sram_init(void)
+{
+#ifdef L2_LENGTH
+ free_l2_sram_head.next =
+ kmem_cache_alloc(sram_piece_cache, GFP_KERNEL);
+ if (!free_l2_sram_head.next) {
+ printk(KERN_INFO"Fail to initialize L2 SRAM.\n");
+ return;
+ }
+
+ free_l2_sram_head.next->paddr = (void *)L2_START +
+ (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2);
+ free_l2_sram_head.next->size = L2_LENGTH -
+ (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2);
+ free_l2_sram_head.next->pid = 0;
+ free_l2_sram_head.next->next = NULL;
+
+ used_l2_sram_head.next = NULL;
+
+ printk(KERN_INFO "Blackfin L2 SRAM: %d KB (%d KB free)\n",
+ L2_LENGTH >> 10,
+ free_l2_sram_head.next->size >> 10);
+#endif
+
+ /* mutex initialize */
+ spin_lock_init(&l2_sram_lock);
+}
void __init bfin_sram_init(void)
{
sram_piece_cache = kmem_cache_create("sram_piece_cache",
@@ -177,10 +209,11 @@ void __init bfin_sram_init(void)
l1sram_init();
l1_data_sram_init();
l1_inst_sram_init();
+ l2_sram_init();
}
-/* L1 memory allocate function */
-static void *_l1_sram_alloc(size_t size, struct sram_piece *pfree_head,
+/* SRAM allocate function */
+static void *_sram_alloc(size_t size, struct sram_piece *pfree_head,
struct sram_piece *pused_head)
{
struct sram_piece *pslot, *plast, *pavail;
@@ -236,7 +269,7 @@ static void *_l1_sram_alloc(size_t size, struct sram_piece *pfree_head,
}
/* Allocate the largest available block. */
-static void *_l1_sram_alloc_max(struct sram_piece *pfree_head,
+static void *_sram_alloc_max(struct sram_piece *pfree_head,
struct sram_piece *pused_head,
unsigned long *psize)
{
@@ -259,11 +292,11 @@ static void *_l1_sram_alloc_max(struct sram_piece *pfree_head,
*psize = pmax->size;
- return _l1_sram_alloc(*psize, pfree_head, pused_head);
+ return _sram_alloc(*psize, pfree_head, pused_head);
}
-/* L1 memory free function */
-static int _l1_sram_free(const void *addr,
+/* SRAM free function */
+static int _sram_free(const void *addr,
struct sram_piece *pfree_head,
struct sram_piece *pused_head)
{
@@ -334,6 +367,11 @@ int sram_free(const void *addr)
&& addr < (void *)(L1_DATA_B_START + L1_DATA_B_LENGTH))
return l1_data_B_sram_free(addr);
#endif
+#ifdef L2_LENGTH
+ else if (addr >= (void *)L2_START
+ && addr < (void *)(L2_START + L2_LENGTH))
+ return l2_sram_free(addr);
+#endif
else
return -1;
}
@@ -348,7 +386,7 @@ void *l1_data_A_sram_alloc(size_t size)
spin_lock_irqsave(&l1_data_sram_lock, flags);
#if L1_DATA_A_LENGTH != 0
- addr = _l1_sram_alloc(size, &free_l1_data_A_sram_head,
+ addr = _sram_alloc(size, &free_l1_data_A_sram_head,
&used_l1_data_A_sram_head);
#endif
@@ -371,7 +409,7 @@ int l1_data_A_sram_free(const void *addr)
spin_lock_irqsave(&l1_data_sram_lock, flags);
#if L1_DATA_A_LENGTH != 0
- ret = _l1_sram_free(addr, &free_l1_data_A_sram_head,
+ ret = _sram_free(addr, &free_l1_data_A_sram_head,
&used_l1_data_A_sram_head);
#else
ret = -1;
@@ -393,7 +431,7 @@ void *l1_data_B_sram_alloc(size_t size)
/* add mutex operation */
spin_lock_irqsave(&l1_data_sram_lock, flags);
- addr = _l1_sram_alloc(size, &free_l1_data_B_sram_head,
+ addr = _sram_alloc(size, &free_l1_data_B_sram_head,
&used_l1_data_B_sram_head);
/* add mutex operation */
@@ -418,7 +456,7 @@ int l1_data_B_sram_free(const void *addr)
/* add mutex operation */
spin_lock_irqsave(&l1_data_sram_lock, flags);
- ret = _l1_sram_free(addr, &free_l1_data_B_sram_head,
+ ret = _sram_free(addr, &free_l1_data_B_sram_head,
&used_l1_data_B_sram_head);
/* add mutex operation */
@@ -472,7 +510,7 @@ void *l1_inst_sram_alloc(size_t size)
/* add mutex operation */
spin_lock_irqsave(&l1_inst_sram_lock, flags);
- addr = _l1_sram_alloc(size, &free_l1_inst_sram_head,
+ addr = _sram_alloc(size, &free_l1_inst_sram_head,
&used_l1_inst_sram_head);
/* add mutex operation */
@@ -497,7 +535,7 @@ int l1_inst_sram_free(const void *addr)
/* add mutex operation */
spin_lock_irqsave(&l1_inst_sram_lock, flags);
- ret = _l1_sram_free(addr, &free_l1_inst_sram_head,
+ ret = _sram_free(addr, &free_l1_inst_sram_head,
&used_l1_inst_sram_head);
/* add mutex operation */
@@ -519,7 +557,7 @@ void *l1sram_alloc(size_t size)
/* add mutex operation */
spin_lock_irqsave(&l1sram_lock, flags);
- addr = _l1_sram_alloc(size, &free_l1_ssram_head,
+ addr = _sram_alloc(size, &free_l1_ssram_head,
&used_l1_ssram_head);
/* add mutex operation */
@@ -537,7 +575,7 @@ void *l1sram_alloc_max(size_t *psize)
/* add mutex operation */
spin_lock_irqsave(&l1sram_lock, flags);
- addr = _l1_sram_alloc_max(&free_l1_ssram_head,
+ addr = _sram_alloc_max(&free_l1_ssram_head,
&used_l1_ssram_head, psize);
/* add mutex operation */
@@ -555,7 +593,7 @@ int l1sram_free(const void *addr)
/* add mutex operation */
spin_lock_irqsave(&l1sram_lock, flags);
- ret = _l1_sram_free(addr, &free_l1_ssram_head,
+ ret = _sram_free(addr, &free_l1_ssram_head,
&used_l1_ssram_head);
/* add mutex operation */
@@ -564,6 +602,64 @@ int l1sram_free(const void *addr)
return ret;
}
+void *l2_sram_alloc(size_t size)
+{
+#ifdef L2_LENGTH
+ unsigned flags;
+ void *addr;
+
+ /* add mutex operation */
+ spin_lock_irqsave(&l2_sram_lock, flags);
+
+ addr = _sram_alloc(size, &free_l2_sram_head,
+ &used_l2_sram_head);
+
+ /* add mutex operation */
+ spin_unlock_irqrestore(&l2_sram_lock, flags);
+
+ pr_debug("Allocated address in l2_sram_alloc is 0x%lx+0x%lx\n",
+ (long unsigned int)addr, size);
+
+ return addr;
+#else
+ return NULL;
+#endif
+}
+EXPORT_SYMBOL(l2_sram_alloc);
+
+void *l2_sram_zalloc(size_t size)
+{
+ void *addr = l2_sram_alloc(size);
+
+ if (addr)
+ memset(addr, 0x00, size);
+
+ return addr;
+}
+EXPORT_SYMBOL(l2_sram_zalloc);
+
+int l2_sram_free(const void *addr)
+{
+#ifdef L2_LENGTH
+ unsigned flags;
+ int ret;
+
+ /* add mutex operation */
+ spin_lock_irqsave(&l2_sram_lock, flags);
+
+ ret = _sram_free(addr, &free_l2_sram_head,
+ &used_l2_sram_head);
+
+ /* add mutex operation */
+ spin_unlock_irqrestore(&l2_sram_lock, flags);
+
+ return ret;
+#else
+ return -1;
+#endif
+}
+EXPORT_SYMBOL(l2_sram_free);
+
int sram_free_with_lsl(const void *addr)
{
struct sram_list_struct *lsl, **tmp;
@@ -602,6 +698,9 @@ void *sram_alloc_with_lsl(size_t size, unsigned long flags)
if (addr == NULL && (flags & L1_DATA_B_SRAM))
addr = l1_data_B_sram_alloc(size);
+ if (addr == NULL && (flags & L2_SRAM))
+ addr = l2_sram_alloc(size);
+
if (addr == NULL) {
kfree(lsl);
return NULL;
@@ -621,7 +720,7 @@ EXPORT_SYMBOL(sram_alloc_with_lsl);
/* Need to keep line of output the same. Currently, that is 44 bytes
* (including newline).
*/
-static int _l1sram_proc_read(char *buf, int *len, int count, const char *desc,
+static int _sram_proc_read(char *buf, int *len, int count, const char *desc,
struct sram_piece *pfree_head,
struct sram_piece *pused_head)
{
@@ -630,13 +729,13 @@ static int _l1sram_proc_read(char *buf, int *len, int count, const char *desc,
if (!pfree_head || !pused_head)
return -1;
- *len += sprintf(&buf[*len], "--- L1 %-14s Size PID State \n", desc);
+ *len += sprintf(&buf[*len], "--- SRAM %-14s Size PID State \n", desc);
/* search the relevant memory slot */
pslot = pused_head->next;
while (pslot != NULL) {
- *len += sprintf(&buf[*len], "%p-%p %8i %5i %-10s\n",
+ *len += sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n",
pslot->paddr, pslot->paddr + pslot->size,
pslot->size, pslot->pid, "ALLOCATED");
@@ -646,7 +745,7 @@ static int _l1sram_proc_read(char *buf, int *len, int count, const char *desc,
pslot = pfree_head->next;
while (pslot != NULL) {
- *len += sprintf(&buf[*len], "%p-%p %8i %5i %-10s\n",
+ *len += sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n",
pslot->paddr, pslot->paddr + pslot->size,
pslot->size, pslot->pid, "FREE");
@@ -655,38 +754,43 @@ static int _l1sram_proc_read(char *buf, int *len, int count, const char *desc,
return 0;
}
-static int l1sram_proc_read(char *buf, char **start, off_t offset, int count,
+static int sram_proc_read(char *buf, char **start, off_t offset, int count,
int *eof, void *data)
{
int len = 0;
- if (_l1sram_proc_read(buf, &len, count, "Scratchpad",
+ if (_sram_proc_read(buf, &len, count, "Scratchpad",
&free_l1_ssram_head, &used_l1_ssram_head))
goto not_done;
#if L1_DATA_A_LENGTH != 0
- if (_l1sram_proc_read(buf, &len, count, "Data A",
+ if (_sram_proc_read(buf, &len, count, "L1 Data A",
&free_l1_data_A_sram_head,
&used_l1_data_A_sram_head))
goto not_done;
#endif
#if L1_DATA_B_LENGTH != 0
- if (_l1sram_proc_read(buf, &len, count, "Data B",
+ if (_sram_proc_read(buf, &len, count, "L1 Data B",
&free_l1_data_B_sram_head,
&used_l1_data_B_sram_head))
goto not_done;
#endif
#if L1_CODE_LENGTH != 0
- if (_l1sram_proc_read(buf, &len, count, "Instruction",
+ if (_sram_proc_read(buf, &len, count, "L1 Instruction",
&free_l1_inst_sram_head, &used_l1_inst_sram_head))
goto not_done;
#endif
+#ifdef L2_LENGTH
+ if (_sram_proc_read(buf, &len, count, "L2",
+ &free_l2_sram_head, &used_l2_sram_head))
+ goto not_done;
+#endif
*eof = 1;
not_done:
return len;
}
-static int __init l1sram_proc_init(void)
+static int __init sram_proc_init(void)
{
struct proc_dir_entry *ptr;
ptr = create_proc_entry("sram", S_IFREG | S_IRUGO, NULL);
@@ -695,8 +799,8 @@ static int __init l1sram_proc_init(void)
return -1;
}
ptr->owner = THIS_MODULE;
- ptr->read_proc = l1sram_proc_read;
+ ptr->read_proc = sram_proc_read;
return 0;
}
-late_initcall(l1sram_proc_init);
+late_initcall(sram_proc_init);
#endif
diff --git a/include/asm-blackfin/bfin-global.h b/include/asm-blackfin/bfin-global.h
index 76033831eb35..320aa5e167e9 100644
--- a/include/asm-blackfin/bfin-global.h
+++ b/include/asm-blackfin/bfin-global.h
@@ -92,16 +92,20 @@ extern void *l1_data_B_sram_alloc(size_t);
extern void *l1_inst_sram_alloc(size_t);
extern void *l1_data_sram_alloc(size_t);
extern void *l1_data_sram_zalloc(size_t);
+extern void *l2_sram_alloc(size_t);
+extern void *l2_sram_zalloc(size_t);
extern int l1_data_A_sram_free(const void*);
extern int l1_data_B_sram_free(const void*);
extern int l1_inst_sram_free(const void*);
extern int l1_data_sram_free(const void*);
+extern int l2_sram_free(const void *);
extern int sram_free(const void*);
#define L1_INST_SRAM 0x00000001
#define L1_DATA_A_SRAM 0x00000002
#define L1_DATA_B_SRAM 0x00000004
#define L1_DATA_SRAM 0x00000006
+#define L2_SRAM 0x00000008
extern void *sram_alloc_with_lsl(size_t, unsigned long);
extern int sram_free_with_lsl(const void*);
@@ -114,7 +118,9 @@ extern struct file_operations dpmc_fops;
extern unsigned long _ramstart, _ramend, _rambase;
extern unsigned long memory_start, memory_end, physical_mem_end;
extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
- _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[];
+ _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[],
+ _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
+ _ebss_l2[], _l2_lma_start[];
#ifdef CONFIG_MTD_UCLINUX
extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
diff --git a/include/asm-blackfin/elf.h b/include/asm-blackfin/elf.h
index 30303fc8292c..67a03a8a353e 100644
--- a/include/asm-blackfin/elf.h
+++ b/include/asm-blackfin/elf.h
@@ -15,6 +15,8 @@
#define EF_BFIN_FDPIC 0x00000002 /* -mfdpic */
#define EF_BFIN_CODE_IN_L1 0x00000010 /* --code-in-l1 */
#define EF_BFIN_DATA_IN_L1 0x00000020 /* --data-in-l1 */
+#define EF_BFIN_CODE_IN_L2 0x00000040 /* --code-in-l2 */
+#define EF_BFIN_DATA_IN_L2 0x00000080 /* --data-in-l2 */
typedef unsigned long elf_greg_t;
diff --git a/include/asm-blackfin/module.h b/include/asm-blackfin/module.h
index 3c7ce1644280..e3128df139d6 100644
--- a/include/asm-blackfin/module.h
+++ b/include/asm-blackfin/module.h
@@ -6,8 +6,6 @@
#define Elf_Shdr Elf32_Shdr
#define Elf_Sym Elf32_Sym
#define Elf_Ehdr Elf32_Ehdr
-#define FLG_CODE_IN_L1 0x10
-#define FLG_DATA_IN_L1 0x20
struct mod_arch_specific {
Elf_Shdr *text_l1;
@@ -15,5 +13,8 @@ struct mod_arch_specific {
Elf_Shdr *bss_a_l1;
Elf_Shdr *data_b_l1;
Elf_Shdr *bss_b_l1;
+ Elf_Shdr *text_l2;
+ Elf_Shdr *data_l2;
+ Elf_Shdr *bss_l2;
};
#endif /* _ASM_BFIN_MODULE_H */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.