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msm: ipa: Use mdt-loader and scm apis to boot IPA firmware

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Convert IPA driver to use mdt-loader and scm apis to load/reset IPA
firmware instead of registering to PIL framework. This change
includes both PIL and mdt loading based on CONFIG_QCOM_MDT_LOADER.

Change-Id: I62283e5955b549519ecab13017633fe51322c1ff
Signed-off-by: Chaitanya Pratapa <cpratapa@codeaurora.org>
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>
This commit is contained in:
Michael Adisumarta
2020-12-28 16:16:52 -08:00
committed by Gerrit - the friendly Code Review server
parent 894d1fee7b
commit 662f45bfb0
1 changed files with 105 additions and 1 deletions
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106
drivers/platform/msm/ipa/ipa_v3/ipa.c
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@@ -34,6 +34,9 @@
#include <linux/soc/qcom/smem_state.h>
#include <linux/of_irq.h>
#include <linux/ctype.h>
#include <linux/of_address.h>
#include <linux/qcom_scm.h>
#include <linux/soc/qcom/mdt_loader.h>
#include "gsi.h"
#ifdef CONFIG_ARM64
@@ -6975,6 +6978,90 @@ static int ipa3_manual_load_ipa_fws(void)
return 0;
}
#if IS_ENABLED(CONFIG_QCOM_MDT_LOADER)
static int ipa_firmware_load(const char *sub_sys)
{
const struct firmware *fw;
char fw_name[32];
struct device_node *node;
struct resource res;
phys_addr_t phys;
ssize_t size;
void *virt;
int ret, index, pas_id;
struct device *dev = &ipa3_ctx->master_pdev->dev;
index = of_property_match_string(dev->of_node, "firmware-names",
sub_sys);
if (index < 0) {
pr_err("#####Not able to match firmware names prorperty\n");
return -EINVAL;
}
node = of_parse_phandle(dev->of_node, "memory-regions", index);
if (!node) {
dev_err(dev, "DT error getting \"memory-region\" property\n");
return -EINVAL;
}
ret = of_address_to_resource(node, 0, &res);
if (ret) {
dev_err(dev, "error %d getting \"memory-region\" resource\n",
ret);
return ret;
}
scnprintf(fw_name, ARRAY_SIZE(fw_name), "%s.mdt", sub_sys);
ret = of_property_read_u32_index(dev->of_node, "pas-ids", index,
&pas_id);
ret = request_firmware(&fw, fw_name, dev);
if (ret) {
dev_err(dev, "error %d requesting \"%s\"\n", ret, fw_name);
return ret;
}
phys = res.start;
size = (size_t)resource_size(&res);
virt = memremap(phys, size, MEMREMAP_WC);
if (!virt) {
dev_err(dev, "unable to remap firmware memory\n");
ret = -ENOMEM;
goto out_release_firmware;
}
ret = qcom_mdt_load(dev, fw, fw_name, pas_id, virt, phys, size, NULL);
if (ret)
dev_err(dev, "error %d loading \"%s\"\n", ret, fw_name);
else if ((ret = qcom_scm_pas_auth_and_reset(pas_id)))
dev_err(dev, "error %d authenticating \"%s\"\n", ret, fw_name);
memunmap(virt);
out_release_firmware:
release_firmware(fw);
return ret;
}
static int ipa3_mdt_load_ipa_fws(const char *sub_sys)
{
int ret;
IPADBG("MDT FW loading process initiated sub_sys=%s\n",
sub_sys);
ret = ipa_firmware_load(sub_sys);
if (ret < 0) {
IPAERR("Unable to MDT load FW for sub_sys=%s\n", sub_sys);
return -EINVAL;
}
IPADBG("MDT FW loading process is complete sub_sys=%s\n", sub_sys);
return 0;
}
#else /* IS_ENABLED(CONFIG_QCOM_MDT_LOADER) */
static int ipa3_pil_load_ipa_fws(const char *sub_sys)
{
void *subsystem_get_retval = NULL;
@@ -6991,6 +7078,7 @@ static int ipa3_pil_load_ipa_fws(const char *sub_sys)
IPADBG("PIL FW loading process is complete sub_sys=%s\n", sub_sys);
return 0;
}
#endif /* IS_ENABLED(CONFIG_QCOM_MDT_LOADER) */
static void ipa3_load_ipa_fw(struct work_struct *work)
{
@@ -7014,11 +7102,19 @@ static void ipa3_load_ipa_fw(struct work_struct *work)
* using different signing images, adding support to
* load specific FW image to based on dt entry.
*/
#if IS_ENABLED(CONFIG_QCOM_MDT_LOADER)
if (ipa3_ctx->gsi_fw_file_name)
result = ipa3_mdt_load_ipa_fws(
ipa3_ctx->gsi_fw_file_name);
else
result = ipa3_mdt_load_ipa_fws(IPA_SUBSYSTEM_NAME);
#else /* IS_ENABLED(CONFIG_QCOM_MDT_LOADER) */
if (ipa3_ctx->gsi_fw_file_name)
result = ipa3_pil_load_ipa_fws(
ipa3_ctx->gsi_fw_file_name);
else
result = ipa3_pil_load_ipa_fws(IPA_SUBSYSTEM_NAME);
#endif /* IS_ENABLED(CONFIG_QCOM_MDT_LOADER) */
} else {
result = ipa3_manual_load_ipa_fws();
}
@@ -7050,17 +7146,25 @@ static void ipa3_load_ipa_fw(struct work_struct *work)
/* Unvoting will happen when uC loaded event received. */
ipa3_proxy_clk_vote(false);
#if IS_ENABLED(CONFIG_QCOM_MDT_LOADER)
if (ipa3_ctx->uc_fw_file_name)
result = ipa3_mdt_load_ipa_fws(
ipa3_ctx->uc_fw_file_name);
else
result = ipa3_mdt_load_ipa_fws(IPA_UC_SUBSYSTEM_NAME);
#else /* IS_ENABLED(CONFIG_QCOM_MDT_LOADER) */
if (ipa3_ctx->uc_fw_file_name)
result = ipa3_pil_load_ipa_fws(
ipa3_ctx->uc_fw_file_name);
else
result = ipa3_pil_load_ipa_fws(IPA_UC_SUBSYSTEM_NAME);
#endif /* IS_ENABLED(CONFIG_QCOM_MDT_LOADER) */
if (result) {
IPAERR("IPA uC loading process has failed result=%d\n",
result);
return;
}
IPADBG("IPA uC PIL loading succeeded\n");
IPADBG("IPA uC loading succeeded\n");
}
}