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Subject[PATCH 1/3] drm/msm: use kvmalloc for ring data in gpu crashstate
Date
The ringbuffer data to capture at crashtime can end up being large
sometimes, and the size can vary from being less than a page to the
full size of 32KB. So use the kvmalloc variant that perfectly fits the bill.

Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
---
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 141062f..c93702d 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -406,7 +406,7 @@ int adreno_gpu_state_get(struct msm_gpu *gpu, struct msm_gpu_state *state)
size = j + 1;

if (size) {
- state->ring[i].data = kmalloc(size << 2, GFP_KERNEL);
+ state->ring[i].data = kvmalloc(size << 2, GFP_KERNEL);
if (state->ring[i].data) {
memcpy(state->ring[i].data, gpu->rb[i]->start, size << 2);
state->ring[i].data_size = size << 2;
@@ -445,7 +445,7 @@ void adreno_gpu_state_destroy(struct msm_gpu_state *state)
int i;

for (i = 0; i < ARRAY_SIZE(state->ring); i++)
- kfree(state->ring[i].data);
+ kvfree(state->ring[i].data);

for (i = 0; state->bos && i < state->nr_bos; i++)
kvfree(state->bos[i].data);
--
1.9.1
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