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________________________________________
From: David Ung <davidu@xxxxxxxxxx>
Sent: Thursday, March 5, 2015 5:51 PM
To: airlied@xxxxxxxx
Cc: linux-tegra@xxxxxxxxxxxxxxx; thierry.reding@xxxxxxxxx; swarren@xxxxxxxxxxxxx; Arto Merilainen; Terje Bergstrom; gnurou@xxxxxxxxx; David Ung
Subject: [PATCH V2 1/3] gpu: host1x: Reduce host1x job allocation size
There is 2 set of num_relocs * sizeof(*) array at the end of host1x job.
Only the 1st set is really used and with job->gather_addr_phys pointing
somewhere within the 1st set of reloc physical addresses.
This patch removes the 2nd set of unused addresses.
Signed-off-by: David Ung <davidu@xxxxxxxxxx>
---
drivers/gpu/host1x/job.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index 63bd63f..9c11265 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -46,8 +46,9 @@ struct host1x_job *host1x_job_alloc(struct host1x_channel *ch,
(u64)num_unpins * sizeof(struct host1x_job_unpin_data) +
(u64)num_waitchks * sizeof(struct host1x_waitchk) +
(u64)num_cmdbufs * sizeof(struct host1x_job_gather) +
- (u64)num_unpins * sizeof(dma_addr_t) +
- (u64)num_unpins * sizeof(u32 *);
+ (u64)num_relocs * sizeof(dma_addr_t) +
+ (u64)num_cmdbufs * sizeof(dma_addr_t);
+
if (total > ULONG_MAX)
return NULL;
--
1.8.1.5
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