Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

On Fri, Jun 23, 2023 at 04:38:34AM +0800, Sui Jingfeng wrote: > On 2023/6/8 15:39, Maxime Ripard wrote: > > On Thu, Jun 08, 2023 at 01:18:38AM +0800, Sui Jingfeng wrote: > > > Hi, > > > > > > On 2023/6/8 00:12, Paul Cercueil wrote: > > > > Hi Sui, > > > > > > > > Le mercredi 07 juin 2023 à 22:38

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi, On 2023/6/8 15:39, Maxime Ripard wrote: On Thu, Jun 08, 2023 at 01:18:38AM +0800, Sui Jingfeng wrote: Hi, On 2023/6/8 00:12, Paul Cercueil wrote: Hi Sui, Le mercredi 07 juin 2023 à 22:38 +0800, Sui Jingfeng a écrit : Hi,  welcome to discussion. I have limited skills in manipulating En

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi, On 2023/6/8 00:12, Paul Cercueil wrote: Hi Sui, Le mercredi 07 juin 2023 à 22:38 +0800, Sui Jingfeng a écrit : Hi,  welcome to discussion. I have limited skills in manipulating English. It may not express what I'm really means in the short time. Part of word in the sentence may not as

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

On Thu, Jun 08, 2023 at 04:17:52PM +0800, Sui Jingfeng wrote: > Hi, > > On 2023/6/8 15:39, Maxime Ripard wrote: > > On Thu, Jun 08, 2023 at 01:18:38AM +0800, Sui Jingfeng wrote: > > > Hi, > > > > > > On 2023/6/8 00:12, Paul Cercueil wrote: > > > > Hi Sui, > > > > > > > > Le mercredi 07 juin 2023

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi, On 2023/6/8 15:39, Maxime Ripard wrote: On Thu, Jun 08, 2023 at 01:18:38AM +0800, Sui Jingfeng wrote: Hi, On 2023/6/8 00:12, Paul Cercueil wrote: Hi Sui, Le mercredi 07 juin 2023 à 22:38 +0800, Sui Jingfeng a écrit : Hi,  welcome to discussion. I have limited skills in manipulating En

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

On Thu, Jun 08, 2023 at 01:18:38AM +0800, Sui Jingfeng wrote: > Hi, > > On 2023/6/8 00:12, Paul Cercueil wrote: > > Hi Sui, > > > > Le mercredi 07 juin 2023 à 22:38 +0800, Sui Jingfeng a écrit : > > > Hi,  welcome to discussion. > > > > > > > > > I have limited skills in manipulating English. >

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi, On 2023/6/7 20:19, Maxime Ripard wrote: On Wed, Jun 07, 2023 at 06:30:01PM +0800, Sui Jingfeng wrote: On 2023/6/7 17:36, Paul Cercueil wrote: Hi Sui, Le mercredi 07 juin 2023 à 13:30 +0800, Sui Jingfeng a écrit : The single map_noncoherent member of struct drm_gem_dma_object may not suff

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi, On 2023/6/8 00:12, Paul Cercueil wrote: Hi Sui, Le mercredi 07 juin 2023 à 22:38 +0800, Sui Jingfeng a écrit : Hi,  welcome to discussion. I have limited skills in manipulating English. It may not express what I'm really means in the short time. Part of word in the sentence may not as

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi Sui, Le mercredi 07 juin 2023 à 22:38 +0800, Sui Jingfeng a écrit : > Hi,  welcome to discussion. > > > I have limited skills in manipulating English. > > It may not express what I'm really means in the short time. > > Part of word in the sentence may not as accurate as your. > > Well, ple

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi,  welcome to discussion. I have limited skills in manipulating English. It may not express what I'm really means in the short time. Part of word in the sentence may not as accurate as your. Well, please don't misunderstand, I'm not doing the rude to you. I will explain it with more detail

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

On Wed, Jun 07, 2023 at 06:30:01PM +0800, Sui Jingfeng wrote: > On 2023/6/7 17:36, Paul Cercueil wrote: > > Hi Sui, > > > > Le mercredi 07 juin 2023 à 13:30 +0800, Sui Jingfeng a écrit : > > > The single map_noncoherent member of struct drm_gem_dma_object may > > > not > > > sufficient for describ

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi Sui, Le mercredi 07 juin 2023 à 18:30 +0800, Sui Jingfeng a écrit : > Hi, > > > On 2023/6/7 17:36, Paul Cercueil wrote: > > Hi Sui, > > > > Le mercredi 07 juin 2023 à 13:30 +0800, Sui Jingfeng a écrit : > > > The single map_noncoherent member of struct drm_gem_dma_object > > > may > > > not

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi, On 2023/6/7 17:36, Paul Cercueil wrote: Hi Sui, Le mercredi 07 juin 2023 à 13:30 +0800, Sui Jingfeng a écrit : The single map_noncoherent member of struct drm_gem_dma_object may not sufficient for describing the backing memory of the GEM buffer object. Especially on dma-coherent systems,

Re: [PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

Hi Sui, Le mercredi 07 juin 2023 à 13:30 +0800, Sui Jingfeng a écrit : > The single map_noncoherent member of struct drm_gem_dma_object may > not > sufficient for describing the backing memory of the GEM buffer > object. > > Especially on dma-coherent systems, the backing memory is both cached >

[PATCH] drm: gem: add an option for supporting the dma-coherent hardware.

The single map_noncoherent member of struct drm_gem_dma_object may not sufficient for describing the backing memory of the GEM buffer object. Especially on dma-coherent systems, the backing memory is both cached coherent for multi-core CPUs and dma-coherent for peripheral device. Say architectures