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Commit 64c83d82 authored by Zhen Kong's avatar Zhen Kong
Browse files

firmware: qcom: add shared memory bridge support for tz_log driver 



add shared memory bridge support for tz_log driver.

Change-Id: I07eebf388000809cdf0cce472215cd9d02e364af
Signed-off-by: default avatarZhen Kong <zkong@codeaurora.org>
parent dc8ae713

drivers/firmware/qcom/tz_log.c

+8 −8
Original line number Original line Diff line number Diff line
@@ -20,6 +20,7 @@ 




#include <soc/qcom/scm.h>

#include <soc/qcom/scm.h>

#include <soc/qcom/qseecomi.h>

#include <soc/qcom/qseecomi.h>

#include <soc/qcom/qtee_shmbridge.h>





/* QSEE_LOG_BUF_SIZE = 32K */

/* QSEE_LOG_BUF_SIZE = 32K */

#define QSEE_LOG_BUF_SIZE 0x8000

#define QSEE_LOG_BUF_SIZE 0x8000
@@ -319,6 +320,7 @@ static struct tzdbg tzdbg = { 
static struct tzdbg_log_t *g_qsee_log;

static struct tzdbg_log_t *g_qsee_log;

static dma_addr_t coh_pmem;

static dma_addr_t coh_pmem;

static uint32_t debug_rw_buf_size;

static uint32_t debug_rw_buf_size;

static struct qtee_shm shm;





/*

/*

 * Debugfs data structure and functions

 * Debugfs data structure and functions
@@ -856,14 +858,13 @@ static void tzdbg_register_qsee_log_buf(struct platform_device *pdev) 
	void *buf = NULL;

	void *buf = NULL;





	len = QSEE_LOG_BUF_SIZE;

	len = QSEE_LOG_BUF_SIZE;

	buf = dma_alloc_coherent(&pdev->dev, len, &coh_pmem, GFP_KERNEL);

	ret = qtee_shmbridge_allocate_shm(len, &shm);

	if (buf == NULL) {

	if (ret)

		pr_err("Failed to alloc memory for size %zu\n", len);

		return;

		return;

	}

	buf = shm.vaddr;

	coh_pmem = shm.paddr;





	g_qsee_log = (struct tzdbg_log_t *)buf;

	g_qsee_log = (struct tzdbg_log_t *)buf;



	desc.args[0] = coh_pmem;

	desc.args[0] = coh_pmem;

	desc.args[1] = len;

	desc.args[1] = len;

	desc.arginfo = 0x22;

	desc.arginfo = 0x22;
@@ -886,7 +887,7 @@ static void tzdbg_register_qsee_log_buf(struct platform_device *pdev) 
	return;

	return;





err:

err:

	dma_free_coherent(&pdev->dev, len, (void *)g_qsee_log, coh_pmem);

	qtee_shmbridge_free_shm(&shm);

}

}





static int  tzdbgfs_init(struct platform_device *pdev)

static int  tzdbgfs_init(struct platform_device *pdev)
@@ -933,8 +934,7 @@ static void tzdbgfs_exit(struct platform_device *pdev) 
	dent_dir = platform_get_drvdata(pdev);

	dent_dir = platform_get_drvdata(pdev);

	debugfs_remove_recursive(dent_dir);

	debugfs_remove_recursive(dent_dir);

	if (g_qsee_log)

	if (g_qsee_log)

		dma_free_coherent(&pdev->dev, QSEE_LOG_BUF_SIZE,

		qtee_shmbridge_free_shm(&shm);

					 (void *)g_qsee_log, coh_pmem);

}

}





static int __update_hypdbg_base(struct platform_device *pdev,

static int __update_hypdbg_base(struct platform_device *pdev,