[PATCH] drm/i915/gvt: Add some regs to force-to-nonpriv whitelist
Zhenyu Wang
zhenyuw at linux.intel.com
Tue Mar 17 10:12:15 UTC 2020
On 2020.03.17 17:14:14 +0800, Tina Zhang wrote:
> Those regs are added in order to slove the following complains:
>
> [70811.201818] gvt: vgpu(1) Invalid FORCE_NONPRIV write 2341 at offset 24d8
> [70811.201825] gvt: vgpu(1) Invalid FORCE_NONPRIV write 2351 at offset 24dc
> [70811.201831] gvt: vgpu(1) Invalid FORCE_NONPRIV write 10000d82 at offset 24e0
> [70811.201837] gvt: vgpu(1) Invalid FORCE_NONPRIV write 10064844 at offset 24e4
>
> So solve them by adding the required regs to the whitelist.
>
> v2: give name to 0x64844 mmio (zhenyu)
>
> Signed-off-by: Tina Zhang <tina.zhang at intel.com>
> ---
> drivers/gpu/drm/i915/gvt/handlers.c | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
> index 0182e2a5acff..35f432e68364 100644
> --- a/drivers/gpu/drm/i915/gvt/handlers.c
> +++ b/drivers/gpu/drm/i915/gvt/handlers.c
> @@ -462,11 +462,16 @@ static int pipeconf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
> return 0;
> }
>
> -/* ascendingly sorted */
> +#define SRD_PERF_CNT _MMIO(0x64844)
> +
> +/* sorted in ascending order */
> static i915_reg_t force_nonpriv_white_list[] = {
> + _MMIO(0xd80),
> GEN9_CS_DEBUG_MODE1, //_MMIO(0x20ec)
> GEN9_CTX_PREEMPT_REG,//_MMIO(0x2248)
> - PS_INVOCATION_COUNT,//_MMIO(0x2348)
> + CL_PRIMITIVES_COUNT, //_MMIO(0x2340)
> + PS_INVOCATION_COUNT, //_MMIO(0x2348)
> + PS_DEPTH_COUNT, //_MMIO(0x2350)
> GEN8_CS_CHICKEN1,//_MMIO(0x2580)
> _MMIO(0x2690),
> _MMIO(0x2694),
> @@ -491,6 +496,7 @@ static i915_reg_t force_nonpriv_white_list[] = {
> _MMIO(0xe18c),
> _MMIO(0xe48c),
> _MMIO(0xe5f4),
> + SRD_PERF_CNT, //_MMIO(0x64844),
> };
oh, I just picked original version, if i915 hasn't defined that,
better can add in i915_reg.h, otherwise can live with the reg value.
>
> /* a simple bsearch */
> --
> 2.17.1
>
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> intel-gvt-dev at lists.freedesktop.org
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