forked from Minki/linux
Blackfin: simplify SMP handling in SRAM code
There is no need to use {get,put}_cpu() when we already have a spinlock to protect against multiple processors running simultaneously. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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0b39db28b9
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54536c5c6a
@ -402,7 +402,7 @@ void *l1_data_A_sram_alloc(size_t size)
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void *addr;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1_data_sram_lock, cpu), flags);
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@ -411,7 +411,6 @@ void *l1_data_A_sram_alloc(size_t size)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1_data_sram_lock, cpu), flags);
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put_cpu();
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pr_debug("Allocated address in l1_data_A_sram_alloc is 0x%lx+0x%lx\n",
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(long unsigned int)addr, size);
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@ -430,7 +429,7 @@ int l1_data_A_sram_free(const void *addr)
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int ret;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1_data_sram_lock, cpu), flags);
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@ -439,7 +438,6 @@ int l1_data_A_sram_free(const void *addr)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1_data_sram_lock, cpu), flags);
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put_cpu();
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return ret;
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#else
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@ -455,7 +453,7 @@ void *l1_data_B_sram_alloc(size_t size)
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void *addr;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1_data_sram_lock, cpu), flags);
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@ -464,7 +462,6 @@ void *l1_data_B_sram_alloc(size_t size)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1_data_sram_lock, cpu), flags);
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put_cpu();
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pr_debug("Allocated address in l1_data_B_sram_alloc is 0x%lx+0x%lx\n",
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(long unsigned int)addr, size);
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@ -483,7 +480,7 @@ int l1_data_B_sram_free(const void *addr)
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int ret;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1_data_sram_lock, cpu), flags);
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@ -492,7 +489,6 @@ int l1_data_B_sram_free(const void *addr)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1_data_sram_lock, cpu), flags);
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put_cpu();
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return ret;
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#else
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@ -540,7 +536,7 @@ void *l1_inst_sram_alloc(size_t size)
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void *addr;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1_inst_sram_lock, cpu), flags);
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@ -549,7 +545,6 @@ void *l1_inst_sram_alloc(size_t size)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1_inst_sram_lock, cpu), flags);
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put_cpu();
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pr_debug("Allocated address in l1_inst_sram_alloc is 0x%lx+0x%lx\n",
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(long unsigned int)addr, size);
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@ -568,7 +563,7 @@ int l1_inst_sram_free(const void *addr)
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int ret;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1_inst_sram_lock, cpu), flags);
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@ -577,7 +572,6 @@ int l1_inst_sram_free(const void *addr)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1_inst_sram_lock, cpu), flags);
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put_cpu();
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return ret;
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#else
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@ -593,7 +587,7 @@ void *l1sram_alloc(size_t size)
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void *addr;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1sram_lock, cpu), flags);
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@ -602,7 +596,6 @@ void *l1sram_alloc(size_t size)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1sram_lock, cpu), flags);
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put_cpu();
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return addr;
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}
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@ -614,7 +607,7 @@ void *l1sram_alloc_max(size_t *psize)
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void *addr;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1sram_lock, cpu), flags);
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@ -623,7 +616,6 @@ void *l1sram_alloc_max(size_t *psize)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1sram_lock, cpu), flags);
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put_cpu();
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return addr;
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}
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@ -635,7 +627,7 @@ int l1sram_free(const void *addr)
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int ret;
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unsigned int cpu;
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cpu = get_cpu();
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cpu = smp_processor_id();
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/* add mutex operation */
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spin_lock_irqsave(&per_cpu(l1sram_lock, cpu), flags);
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@ -644,7 +636,6 @@ int l1sram_free(const void *addr)
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/* add mutex operation */
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spin_unlock_irqrestore(&per_cpu(l1sram_lock, cpu), flags);
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put_cpu();
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return ret;
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}
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