evie/android_kernel_oneplus_msm8998
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Merge "msm: kgsl: Fix gpu fault issue while enabling stall on page fault"

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Linux Build Service Account 2017-09-11 19:12:52 -07:00 • committed by Gerrit - the friendly Code Review server
commit 42a50b337e
1 changed files with 21 additions and 12 deletions
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33
drivers/gpu/msm/adreno_ringbuffer.c
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@ -489,12 +489,17 @@ adreno_ringbuffer_addcmds(struct adreno_ringbuffer *rb,
if (flags & KGSL_CMD_FLAGS_PWRON_FIXUP)
total_sizedwords += 9;
/* WAIT_MEM_WRITES - needed in the stall on fault case
* to prevent out of order CP operations that can result
* in a CACHE_FLUSH_TS interrupt storm */
if (test_bit(KGSL_FT_PAGEFAULT_GPUHALT_ENABLE,
/* Don't insert any commands if stall on fault is not supported. */
if ((ADRENO_GPUREV(adreno_dev) > 500) && !adreno_is_a510(adreno_dev)) {
/*
* WAIT_MEM_WRITES - needed in the stall on fault case
* to prevent out of order CP operations that can result
* in a CACHE_FLUSH_TS interrupt storm
*/
if (test_bit(KGSL_FT_PAGEFAULT_GPUHALT_ENABLE,
&adreno_dev->ft_pf_policy))
total_sizedwords += 1;
total_sizedwords += 1;
}
ringcmds = adreno_ringbuffer_allocspace(rb, total_sizedwords);
if (IS_ERR(ringcmds))
@ -581,14 +586,18 @@ adreno_ringbuffer_addcmds(struct adreno_ringbuffer *rb,
if (profile_ready)
adreno_profile_postib_processing(adreno_dev, &flags, &ringcmds);
/*
* WAIT_MEM_WRITES - needed in the stall on fault case to prevent
* out of order CP operations that can result in a CACHE_FLUSH_TS
* interrupt storm
*/
if (test_bit(KGSL_FT_PAGEFAULT_GPUHALT_ENABLE,
/* Don't insert any commands if stall on fault is not supported. */
if ((ADRENO_GPUREV(adreno_dev) > 500) && !adreno_is_a510(adreno_dev)) {
/*
* WAIT_MEM_WRITES - needed in the stall on fault case
* to prevent out of order CP operations that can result
* in a CACHE_FLUSH_TS interrupt storm
*/
if (test_bit(KGSL_FT_PAGEFAULT_GPUHALT_ENABLE,
&adreno_dev->ft_pf_policy))
*ringcmds++ = cp_packet(adreno_dev, CP_WAIT_MEM_WRITES, 0);
*ringcmds++ = cp_packet(adreno_dev,
CP_WAIT_MEM_WRITES, 0);
}
/*
* Do a unique memory write from the GPU. This can be used in