Re: [PATCH v6 1/4] venus: firmware: add routine to reset ARM9
From: Vikash Garodia <hidden>
Date: 2018-08-24 12:35:04
Also in:
linux-arm-msm, linux-media, lkml
On 2018-08-24 14:27, Stanimir Varbanov wrote:
Hi Alex, On 08/24/2018 10:38 AM, Alexandre Courbot wrote:quoted
On Thu, Aug 23, 2018 at 11:29 PM Vikash Garodia [off-list ref] wrote:quoted
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index c4a5778..a9d042e 100644--- a/drivers/media/platform/qcom/venus/firmware.c +++ b/drivers/media/platform/qcom/venus/firmware.c@@ -22,10 +22,43 @@ #include <linux/sizes.h> #include <linux/soc/qcom/mdt_loader.h> +#include "core.h" #include "firmware.h" +#include "hfi_venus_io.h" #define VENUS_PAS_ID 9 #define VENUS_FW_MEM_SIZE (6 * SZ_1M)This is making a strong assumption about the size of the FW memory region, which in practice is not always true (I had to reduce it to 5MB). How about having this as a member of venus_core, which isWhy you reduced to 5MB? Is there an issue with 6MB or you don't want to waste reserved memory?quoted
initialized in venus_load_fw() from the actual size of the memory region? You could do this as an extra patch that comes before this one.
I would go with existing design than relying on the size specified in the memory-region for venus. size loaded is always taken from DT while the VENUS_FW_MEM_SIZE serves the purpose of sanity check.
The size is 6MB by historical reasons and they are no more valid, so I think we could safely decrease to 5MB. I could prepare a patch for that.
Thanks Stan. Initial patch in this series had 5MB. We discussed earlier to keep it as is and take it as a separate patch to update from 6MB to 5MB.