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Commit da22013f authored by Alan Cox's avatar Alan Cox Committed by Greg Kroah-Hartman
Browse files

atomisp: remove indirection from sh_css_malloc



We have one hard coded set of behaviour so unpick the indirection and function
pointers. This isn't the whole story. A lot of the callers are known sizes and
use cases so we can switch them directly to kmalloc later on.

Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 83fceac0
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+0 −3
Original line number Original line Diff line number Diff line
@@ -923,9 +923,6 @@ int atomisp_css_load_firmware(struct atomisp_device *isp)
	isp->css_env.isp_css_fw.data = (void *)isp->firmware->data;
	isp->css_env.isp_css_fw.data = (void *)isp->firmware->data;
	isp->css_env.isp_css_fw.bytes = isp->firmware->size;
	isp->css_env.isp_css_fw.bytes = isp->firmware->size;


	isp->css_env.isp_css_env.cpu_mem_env.alloc = atomisp_kernel_zalloc;
	isp->css_env.isp_css_env.cpu_mem_env.free = atomisp_kernel_free;

	isp->css_env.isp_css_env.hw_access_env.store_8 =
	isp->css_env.isp_css_env.hw_access_env.store_8 =
							atomisp_css2_hw_store_8;
							atomisp_css2_hw_store_8;
	isp->css_env.isp_css_env.hw_access_env.store_16 =
	isp->css_env.isp_css_env.hw_access_env.store_16 =
+1 −18
Original line number Original line Diff line number Diff line
@@ -39,25 +39,8 @@ enum ia_css_mem_attr {
 *  This is never expected to allocate more than one page of memory (4K bytes).
 *  This is never expected to allocate more than one page of memory (4K bytes).
 */
 */
struct ia_css_cpu_mem_env {
struct ia_css_cpu_mem_env {
	void * (*alloc)(size_t bytes, bool zero_mem);
	/**< Allocation function with boolean argument to indicate whether
	     the allocated memory should be zeroed out or not, true (or 1)
	     meaning the memory given to CSS must be zeroed */
	void (*free)(void *ptr);
	/**< Corresponding free function. The function must also accept
	     a NULL argument, similar to C89 free(). */
	void (*flush)(struct ia_css_acc_fw *fw);
	void (*flush)(struct ia_css_acc_fw *fw);
	/**< Flush function to flush the cache for given accelerator. */
	/**< Flush function to flush the cache for given accelerator. */
#ifdef ISP2401

	#if !defined(__SVOS__)
	/* a set of matching functions with additional debug params */
	void * (*alloc_ex)(size_t bytes, bool zero_mem, const char *caller_func, int caller_line);
	/**< same as alloc above, only with additional debug parameters */
	void (*free_ex)(void *ptr, const char *caller_func, int caller_line);
	/**< same as free above, only with additional debug parameters */
	#endif
#endif
};
};


/** Environment with function pointers to access the CSS hardware. This includes
/** Environment with function pointers to access the CSS hardware. This includes
@@ -103,7 +86,7 @@ struct ia_css_print_env {
 *  Windows and several simulation environments.
 *  Windows and several simulation environments.
 */
 */
struct ia_css_env {
struct ia_css_env {
	struct ia_css_cpu_mem_env   cpu_mem_env;   /**< local malloc and free. */
	struct ia_css_cpu_mem_env   cpu_mem_env;   /**< local flush. */
	struct ia_css_hw_access_env hw_access_env; /**< CSS HW access functions */
	struct ia_css_hw_access_env hw_access_env; /**< CSS HW access functions */
	struct ia_css_print_env     print_env;     /**< Message printing env. */
	struct ia_css_print_env     print_env;     /**< Message printing env. */
};
};
+24 −28
Original line number Original line Diff line number Diff line
@@ -13,6 +13,10 @@
 */
 */


/*! \file */
/*! \file */
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>

#include "ia_css.h"
#include "ia_css.h"
#include "sh_css_hrt.h"		/* only for file 2 MIPI */
#include "sh_css_hrt.h"		/* only for file 2 MIPI */
#include "ia_css_buffer.h"
#include "ia_css_buffer.h"
@@ -1679,15 +1683,8 @@ ia_css_load_firmware(const struct ia_css_env *env,
	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "ia_css_load_firmware() enter\n");
	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "ia_css_load_firmware() enter\n");


	/* make sure we initialize my_css */
	/* make sure we initialize my_css */
	if ((my_css.malloc != env->cpu_mem_env.alloc) ||
	if (my_css.flush != env->cpu_mem_env.flush) {
		(my_css.free != env->cpu_mem_env.free) ||
		(my_css.flush != env->cpu_mem_env.flush)
		)
	{
		ia_css_reset_defaults(&my_css);
		ia_css_reset_defaults(&my_css);

		my_css.malloc = env->cpu_mem_env.alloc;
		my_css.free = env->cpu_mem_env.free;
		my_css.flush = env->cpu_mem_env.flush;
		my_css.flush = env->cpu_mem_env.flush;
	}
	}


@@ -1715,8 +1712,6 @@ ia_css_init(const struct ia_css_env *env,
	ia_css_blctrl_cfg blctrl_cfg;
	ia_css_blctrl_cfg blctrl_cfg;
#endif
#endif


	void *(*malloc_func)(size_t size, bool zero_mem);
	void (*free_func)(void *ptr);
	void (*flush_func)(struct ia_css_acc_fw *fw);
	void (*flush_func)(struct ia_css_acc_fw *fw);
	hrt_data select, enable;
	hrt_data select, enable;


@@ -1765,8 +1760,6 @@ ia_css_init(const struct ia_css_env *env,


	IA_CSS_ENTER("void");
	IA_CSS_ENTER("void");


	malloc_func    = env->cpu_mem_env.alloc;
	free_func      = env->cpu_mem_env.free;
	flush_func     = env->cpu_mem_env.flush;
	flush_func     = env->cpu_mem_env.flush;


	pipe_global_init();
	pipe_global_init();
@@ -1786,16 +1779,9 @@ ia_css_init(const struct ia_css_env *env,
	ia_css_save_mmu_base_addr(mmu_l1_base);
	ia_css_save_mmu_base_addr(mmu_l1_base);
#endif
#endif


	if (malloc_func == NULL || free_func == NULL) {
		IA_CSS_LEAVE_ERR(IA_CSS_ERR_INVALID_ARGUMENTS);
		return IA_CSS_ERR_INVALID_ARGUMENTS;
	}

	ia_css_reset_defaults(&my_css);
	ia_css_reset_defaults(&my_css);


	my_css_save.driver_env = *env;
	my_css_save.driver_env = *env;
	my_css.malloc    = malloc_func;
	my_css.free      = free_func;
	my_css.flush     = flush_func;
	my_css.flush     = flush_func;


	err = ia_css_rmgr_init();
	err = ia_css_rmgr_init();
@@ -2018,25 +2004,35 @@ ia_css_enable_isys_event_queue(bool enable)
void *sh_css_malloc(size_t size)
void *sh_css_malloc(size_t size)
{
{
	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "sh_css_malloc() enter: size=%d\n",size);
	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "sh_css_malloc() enter: size=%d\n",size);
	if (size > 0 && my_css.malloc)
	/* FIXME: This first test can probably go away */
		return my_css.malloc(size, false);
	if (size == 0)
		return NULL;
		return NULL;
	if (size > PAGE_SIZE)
		return vmalloc(size);
	return kmalloc(size, GFP_KERNEL);
}
}


void *sh_css_calloc(size_t N, size_t size)
void *sh_css_calloc(size_t N, size_t size)
{
{
	void *p;

	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "sh_css_calloc() enter: N=%d, size=%d\n",N,size);
	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "sh_css_calloc() enter: N=%d, size=%d\n",N,size);
	if (size > 0 && my_css.malloc)

		return my_css.malloc(N*size, true);		
	/* FIXME: this test can probably go away */
	if (size > 0) {
		p = sh_css_malloc(N*size);
		if (p)
			memset(p, 0, size);
	}
	return NULL;
	return NULL;
}
}


void sh_css_free(void *ptr)
void sh_css_free(void *ptr)
{
{
	IA_CSS_ENTER_PRIVATE("ptr = %p", ptr);
	if (is_vmalloc_addr(ptr))
	if (ptr && my_css.free)
		vfree(ptr);
		my_css.free(ptr);
	else
	IA_CSS_LEAVE_PRIVATE("void");
		kfree(ptr);
}
}


/* For Acceleration API: Flush FW (shared buffer pointer) arguments */
/* For Acceleration API: Flush FW (shared buffer pointer) arguments */